CN112234795B - Linear motor - Google Patents
Linear motor Download PDFInfo
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- CN112234795B CN112234795B CN202010922162.6A CN202010922162A CN112234795B CN 112234795 B CN112234795 B CN 112234795B CN 202010922162 A CN202010922162 A CN 202010922162A CN 112234795 B CN112234795 B CN 112234795B
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- yoke
- magnetic steel
- linear motor
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- 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
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- 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
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- 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, wherein the primary mechanism and the secondary mechanism are arranged on the sliding mechanism at intervals; the secondary mechanism comprises a first secondary unit and a second secondary unit which are arranged in parallel in the vertical direction, 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 arranged along the moving direction of the sliding seat and a short shaft arranged perpendicular to the long shaft, and the first magnetic steel inclines towards the moving direction of the sliding seat relative to the short shaft; the second magnetic steel is inclined relative to the short shaft direction and is away from the moving direction of the sliding seat. The technical problem that the performance of the motor is influenced by the bending moment generated between the rotor and the stator of the motor due to the inclination of the magnetic steel of the linear motor is solved.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of motors, in particular to a linear motor.
[ background of the invention ]
The linear motor is used as a zero-transmission driving mechanism, does not need an intermediate transmission mechanism, and has the advantages of high precision, high dynamic response, high rigidity and the like. In addition, because of no transmission abrasion, the mechanical loss is extremely low, the maintenance requirement of the linear motor is low, and the service life is long. Accordingly, 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 steel sheet iron core with a tooth socket as a primary so as to improve the output of the motor in unit volume, namely the thrust density. It is the existence of the tooth grooves that cause the air gap of the motor to be uneven, and cause the thrust fluctuation, namely the tooth groove force. The cogging force affects the smoothness of movement and the low-speed performance of a precision movement system, and is also easy to cause noise of a high-speed movement system.
In the prior art, a chute or an oblique pole is generally adopted, and chutes or oblique poles with different angles are selected, so that the tooth socket thrust (thrust fluctuation) can be reduced; the secondary magnetic steel of the existing oblique-pole linear motor is generally inclined to the same direction according to a certain angle, and after the magnetic steel is inclined, bending moment can be generated between a motor rotor and a stator to influence the performance of the motor.
Therefore, there is a need to provide a new linear motor to solve the above problems.
[ summary of the invention ]
The invention aims to provide a linear motor, which aims to solve the technical problem that the linear motor in the prior art has influence on the performance of the motor due to the fact that bending moment is generated between a rotor and a stator of the motor due to the fact that magnetic steel inclines.
To this end, an embodiment of the present invention provides a linear motor, including: the sliding mechanism, the primary mechanism and the secondary mechanism are arranged on the sliding mechanism at intervals; the sliding mechanism comprises a base and a sliding seat movably arranged on the base, the primary mechanism is fixed on the base, and the secondary mechanism is fixed on the sliding seat; or, the primary mechanism is fixed on the sliding seat, and the secondary mechanism is fixed on the base;
the secondary mechanism comprises a first secondary unit and a second secondary unit which are arranged in parallel in the vertical direction, 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 arranged along the moving direction of the sliding seat and a short shaft arranged perpendicular to the long shaft, and the first magnetic steel inclines towards the moving direction of the sliding seat relative to the short shaft; the second magnetic steel is inclined relative to the short shaft direction and is away from the moving direction of the sliding seat.
As an improvement, an inclination angle of the first magnetic steel inclined relative to the short axis toward the moving direction of the sliding seat is the same as an inclination angle of the second magnetic steel inclined relative to the short axis away from the moving direction of the sliding seat.
As an improvement, the primary mechanism comprises a first primary unit and a second primary unit which are arranged in parallel in the vertical direction, the first primary unit comprises a first iron core provided with a first tooth slot and a first winding accommodated in the first tooth slot, and the second primary unit comprises a second iron core provided with a second tooth slot and a second winding accommodated in the second tooth slot.
As a modification, the base comprises a bottom wall, a first side wall and a second side wall which are oppositely and separately arranged on the bottom wall, and a first fixing piece formed by extending from the first side wall to the second side wall;
the slide is movably connected with the first side wall and the second side wall is far away from one side of the bottom wall, the slide comprises a top wall movably connected between the first side wall and the second side wall, a second fixing piece and a fixing portion, wherein the second fixing piece is formed by extending the top wall towards the bottom wall, and the second fixing piece extends and is located between the first fixing piece and the bottom wall.
As a modification, the first iron core is disposed on the bottom wall, and the second iron core is disposed on the first fixing member; the first magnetic yoke is arranged on one side of the fixing part relative to the first iron core, and the second magnetic yoke is arranged on the other side of the fixing part relative to the second iron core;
and the notch of the first tooth groove faces to the first magnetic steel, and the notch of the second tooth groove faces to the second magnetic steel.
As an improvement, the primary mechanism further includes a connecting member fixedly connected to the fixing portion and interposed between the first yoke and the second yoke, and the first yoke and the second yoke are both fixed to the fixing portion.
As a modification, the first yoke is provided on the bottom wall, and the second yoke is provided on one side of the fixing portion; the first iron core is arranged on the second fixing piece relative to the first magnetic yoke, and the second iron core is arranged on the other side of the fixing part;
and the notch of the first tooth groove faces to the first magnetic steel, and the notch of the second tooth groove faces to the second magnetic steel.
As a modification, the first core and the second core are integrally formed.
As an improvement, the linear motor further comprises a grid ruler fixed on the base and a grid ruler reading head arranged on the second fixing piece opposite to the grid ruler.
As an improvement, the sliding mechanism further includes guide rails disposed between the first side wall and the top wall and between the second side wall and the top wall.
The invention has the beneficial effects that: in the invention, the first magnetic yoke and the second magnetic yoke are provided with a long shaft arranged along the moving direction of the sliding seat and a short shaft arranged perpendicular to the long shaft, and the first magnetic steel arranged on the first magnetic yoke inclines towards the moving direction of the sliding seat relative to the short shaft, so that a first bending moment is generated between the primary mechanism and the first secondary unit; the second magnetic steel arranged on the second magnetic yoke inclines relative to the short shaft direction in the direction away from the sliding seat, so that a second bending moment is generated between the primary mechanism and the second secondary unit; since the inclination direction of the first magnetic steel is opposite to that of the second magnetic steel, the first bending moment and the second bending moment can be offset with each other as a whole of the linear motor. According to the technical scheme, on one hand, thrust fluctuation between the primary mechanism and the first secondary unit is reduced through the inclined first magnetic steel, thrust fluctuation between the primary mechanism and the second secondary unit is reduced through 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 that of the second magnetic steel, so that the technical problem that the performance of the motor is influenced by bending moment generated between a rotor and a stator of the motor due to the inclination of the magnetic steel of the linear motor is solved.
[ description of the drawings ]
Fig. 1 is a schematic view 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 structural diagram of a first magnetic steel and a second magnetic steel of a linear motor according to an embodiment of the present invention;
FIG. 5 is a cross-sectional view taken along line A-A of FIG. 1;
fig. 6 is a schematic view 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.
In the figure: 10. a linear motor; 11. a primary mechanism; 111. a first primary unit; 1111. a first iron core; 1111a, a first tooth groove; 1112. a first winding; 112. a second primary unit; 1121. a second iron core; 1121a, second tooth slot; 1122. a second winding; 12. a secondary mechanism; 121. a first secondary unit; 1211. a first magnetic steel; 1212. a first yoke; 122. a second secondary unit; 1221. a second magnetic steel; 1222. a second yoke; 123. a connecting member; 13. a sliding mechanism; 131. a base; 1311. a bottom wall; 1312. a first side wall; 1313. a second side wall; 1314. a first fixing member; 132. a slide base; 1321. a top wall; 1322. a second fixing member; 1323. a fixed part; 133. a guide rail; 141. a grid ruler; 142. a grid ruler reading head.
[ detailed description ] embodiments
To facilitate an understanding of the invention, the invention will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. The 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 "secured 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 as used herein are 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 in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" 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 sliding seat 132 movably disposed on the base 131, and the primary mechanism 11 and the secondary mechanism 12 are disposed on the sliding mechanism 13 with a predetermined physical gap therebetween, so that the pushing force generated by the interaction between the primary mechanism 11 and the secondary mechanism 12 can push the primary mechanism 11 or the secondary mechanism 12 to move linearly. For example, the primary mechanism 11 is fixed to the base 131, the secondary mechanism 12 is fixed to the carriage 132, and the secondary mechanism 12 slides with respect 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.
3-5, the secondary mechanism 12 includes a first secondary unit 121 and a second secondary unit 122 juxtaposed in a vertical direction, the first secondary unit 121 includes a first yoke 1212 and a first magnetic steel 1211 disposed on the first yoke 1212, the second secondary unit 122 includes a second yoke 1222 and a second magnetic steel 1221 disposed on the second yoke 1222, the first yoke 1212 and the second yoke 1222 have a major axis disposed along a moving direction of the slider 132 and a minor axis disposed perpendicular to the major axis, and the first magnetic steel 1211 is inclined with respect to the minor axis toward the moving direction of the slider 132; the second magnetic steel 1221 is inclined with respect to the short axis direction away from the moving direction of the slider 132.
In the present invention, 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 directions of the long axis and the short axis are as shown in fig. 1 and 6, the first magnetic steel 1211 disposed on the first yoke 1212 is inclined toward the moving direction of the slider 132 with respect to the short axis, so that a first bending moment is generated between the primary mechanism 11 and the first secondary unit 121; the second magnetic steel 1221 disposed on the second yoke 1222 is inclined with respect to the short axis direction away from the slider 132, so that a second bending moment is generated between the primary mechanism 11 and the second secondary unit 122; since the inclination direction of the first magnetic steel 1211 is opposite to the inclination direction of the second magnetic steel 1221, the first bending moment and the second bending moment may be offset with each other in terms of the linear motor 10 as a whole. In the technical scheme, on one hand, thrust fluctuation between the primary mechanism 11 and the first secondary unit 121 is reduced through the inclined first magnetic steel 1211, thrust fluctuation between the primary mechanism 11 and the second secondary unit 122 is reduced through the inclined second magnetic steel 1221, and the overall thrust of the linear motor 10 can be improved; on the other hand, the inclination direction of the first magnetic steel 1211 is opposite to that of the second magnetic steel 1221, so that the technical problem that the performance of the linear motor 10 is affected by bending moment generated between a rotor and a stator of the motor due to the inclination of the magnetic steel is solved.
Preferably, the inclination angle of the relative minor axis of the first magnetic steel 1211 inclined toward the moving direction of the slider 132 is the same as the inclination angle of the relative minor axis of the second magnetic steel 1221 inclined away from the moving direction of the slider 132, so that the first bending moment received by the first magnetic steel 1211 is the same as 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 cancelled.
In one embodiment, the primary mechanism 11 includes a first primary unit 111 and a second primary unit 112 juxtaposed in a vertical direction, wherein the first primary unit 111 includes a first iron core 1111 having a first tooth slot 1111a and a first winding 1112 received in the first tooth slot 1111a, and the second primary unit 112 includes a second iron core 1121 having a second tooth slot 1121a and a second winding 1122 received in the second tooth slot 1121 a.
When an alternating current is applied to the first winding 1112 and the second winding 1122, a traveling-wave magnetic field is generated in the air gap between the first primary unit 111 and the first secondary unit 121 and the air gap between the second primary unit 112 and the second secondary unit 122, and the first secondary unit 121 and the second secondary unit 122 induce an electromotive force and generate a current under the cutting of the traveling-wave magnetic field, and the current and the traveling-wave magnetic field in the air gap act to generate an 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 one embodiment, referring to fig. 3, the base 131 includes a bottom wall 1311, a first sidewall 1312 and a second sidewall 1313 oppositely and spaced apart from each other on the bottom wall 1311, and a first fixing member 1314 formed by extending from the first sidewall 1312 toward the second sidewall 1313; the sliding seat 132 is movably connected to a side of the first side wall 1312 and the second side wall 1313 away from the bottom wall 1311, and specifically, the sliding seat 132 includes a top wall 1321 movably connected between the first side wall 1312 and the second side wall 1313, a second fixing member 1322 formed by extending from the top wall 1321 toward the bottom wall 1311, and a fixing portion 1323 extending from the second fixing member 1322 and located between the first fixing member 1314 and the bottom wall 1311.
In some specific embodiments, the sliding mechanism 13 further includes a guide rail 133 disposed between the first side wall 1312 and the top wall 1321 and between the second side wall 1313 and the top wall 1321, so that the sliding seat 132 can slide smoothly relative to the base 131.
In one embodiment, referring to fig. 1 and 2, the first core 1111 is disposed on the bottom wall 1311, and the second core 1121 is disposed on the first fixing member 1314; the first yoke 1212 is provided on one side of the fixing portion 1323 with respect to the first core 1111, and the second yoke 1222 is provided on the other side of the fixing portion 1323 with respect to the second core 1121; the notch of the first tooth slot 1111a faces the first magnetic steel 1211, and the notch of the second tooth slot 1121a faces the second magnetic steel 1221.
The primary mechanism 11 is disposed on the base 131 through the first iron core 1111 and the second iron core 1121, and the secondary mechanism 12 is disposed on the slider 132 through the first yoke 1212 and the second yoke 1222, so that the primary mechanism 11 is fixed and the secondary mechanism 12 moves linearly with the slider 132 relative to the primary mechanism 11 under thrust. Specifically, the first primary unit 111 and the second primary unit 112 of the primary mechanism 11 are respectively disposed on the upper and lower sides of the secondary mechanism 12, that is, the first primary unit 111, the first secondary unit 121, the second secondary unit 122, and the second primary unit 112 are arranged in this order from the bottom up.
The notch of the first tooth slot 1111a of the first iron core 1111 faces the first magnetic steel 1211, a first normal suction force exists between the first primary unit 111 and the first secondary unit 121, and the first normal suction force faces the first primary unit 111 from the first secondary unit 121; the notch of the second tooth groove 1121a of the second iron core 1121 faces the second magnetic steel 1221, a second normal suction force direction exists between the second primary unit 112 and the second secondary unit 122, and the second normal suction force faces the second primary unit 112 from the second secondary unit 122, specifically referring to fig. 2, therefore, the first normal suction force and the second normal suction force are cancelled out each other, so that the normal suction forces between the primary mechanism 11 and the secondary mechanism 12 can be cancelled out each other, and the thrust between the secondary mechanism 12 and the primary mechanism 11 in the linear motor 10 can be increased.
Preferably, the primary mechanism 11 further includes a connecting member 123 fixedly connected to the fixing portion 1323 and interposed between the first yoke 1212 and the second yoke 1222, and the first yoke 1212 and the second yoke 1222 are both fixed to the fixing portion 1323. The first yoke 1212 and the second yoke 1222 are fixedly connected by the connecting member 123, and the first yoke 1212, the second yoke 1222 and the connecting member 123 are fixedly connected to the fixing portion 1323, so that the stability of the first secondary unit 121 and the second secondary unit 122 fixed to the fixing portion 1323 can be enhanced.
In one embodiment, referring to fig. 6 and 7, the first yoke 1212 is disposed on the bottom wall 1311, and the second yoke 1222 is disposed on the first fixing member 1314; the first core 1111 is disposed on one side of the fixing portion 1323 with respect to the first yoke 1212, and the second core 1121 is disposed on the other side of the fixing portion 1323; the notch of the first tooth slot 1111a faces the first magnetic steel 1211, and the notch of the second tooth slot 1121a faces the second magnetic steel 1221.
The secondary mechanism 12 is disposed on the base 131 through the first yoke 1212 and the second yoke 1222, and the primary mechanism 11 is disposed on the slider 132 through the first iron core 1111 and the second iron core 1121, so that the secondary mechanism 12 is fixed, and the primary mechanism 11 moves linearly with the slider 132 relative to the secondary mechanism 12 under thrust. Specifically, the first secondary unit 121 and the second secondary unit 122 of the secondary mechanism 12 are respectively disposed on the upper and lower sides of the primary mechanism 11, that is, the first secondary unit 121, the first primary unit 111, the second primary unit 112, and the second secondary unit 122 are sequentially arranged from bottom to top.
The notch of the first tooth slot 1111a of the first iron core 1111 faces the first magnetic steel 1211, a first normal suction force exists between the first primary unit 111 and the first secondary unit 121, and the first normal suction force faces the first secondary unit 121 from the first primary unit 111; the notch of the second tooth groove 1121a of the second core 1121 faces the second magnetic steel 1221, a second normal suction force direction exists between the second primary unit 112 and the second secondary unit 122, and the second normal suction force faces the second secondary unit 122 from the second primary unit 112, specifically referring to fig. 7, therefore, the first normal suction force and the second normal suction force are cancelled out each other, so that the normal suction forces between the primary mechanism 11 and the secondary mechanism 12 can be cancelled out each other, and the thrust between the secondary mechanism 12 and the primary mechanism 11 in the linear motor 10 can be increased.
Preferably, the first iron core 1111 and the second iron core 1121 are integrally formed, so that the connection stability of the primary mechanism 11 and the second fixing member 1322 is increased.
The linear motor 10 further includes a scale 141 fixed to the base 131 and a scale reading head 142 provided on the second fixing member with respect to the scale 141. When the linear scale reading head 142 moves linearly along with the slider 132, the linear scale reading head 142 also moves on the linear scale 141 in synchronization, 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 can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only show some embodiments of the present invention, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (9)
1. A linear motor comprises a sliding mechanism, a primary mechanism and a secondary mechanism which are arranged on the sliding mechanism at intervals; the sliding mechanism comprises a base and a sliding seat movably arranged on the base; it is characterized in that the preparation method is characterized in that,
the secondary mechanism comprises a first secondary unit and a second secondary unit which are arranged in parallel in the vertical direction, 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 arranged along the moving direction of the sliding seat and a short shaft arranged perpendicular to the long shaft, and the first magnetic steel inclines towards the moving direction of the sliding seat relative to the short shaft; the second magnetic steel is inclined relative to the short shaft direction and is away from the moving direction of the sliding seat;
the primary mechanism comprises a first primary unit and a second primary unit, wherein the first primary unit is arranged opposite to the first secondary unit along the vertical direction, and the second primary unit is arranged opposite to the second secondary unit along the vertical direction;
the base comprises a bottom wall, a first side wall and a second side wall which are opposite to each other and arranged on the bottom wall at intervals, and a first fixing piece formed by extending from the first side wall to the second side wall; the sliding seat is movably connected to one side, far away from the bottom wall, of the first side wall and the second side wall, and comprises a top wall movably connected between the first side wall and the second side wall, a second fixing piece formed by extending from the top wall to the bottom wall, and a fixing part extending from the second fixing piece and located between the first fixing piece and the bottom wall;
wherein the first primary unit and the second primary unit are respectively fixed on the bottom wall and the first fixing piece, and the first secondary unit and the second secondary unit are fixed on the fixing part; or, the first secondary unit and the second secondary unit are respectively fixed on the bottom wall and the first fixing piece, and the first primary unit and the second primary unit are fixed on the fixing part.
2. The linear motor according to claim 1, wherein an inclination angle of the first magnetic steel with respect to the minor axis toward the moving direction of the carriage is the same as an inclination angle of the second magnetic steel with respect to the minor axis away from the moving direction of the carriage.
3. The linear motor according to claim 1, wherein the first primary unit includes a first core having a first slot and a first winding received in the first slot, and the second primary unit includes a second core having a second slot and a second winding received in the second slot.
4. The linear motor according to claim 3, wherein the first core is provided on the bottom wall, and the second core is provided on the first fixing member; the first magnetic yoke is arranged on one side of the fixing part relative to the first iron core, and the second magnetic yoke is arranged on the other side of the fixing part relative to the second iron core;
and the notch of the first tooth groove faces to the first magnetic steel, and the notch of the second tooth groove faces to the second magnetic steel.
5. The linear motor according to claim 4, wherein the secondary mechanism further includes a connecting member fixedly connected to the fixing portion and interposed between the first yoke and the second yoke, and the first yoke and the second yoke are fixed to the fixing portion.
6. A linear motor according to claim 3, wherein the first yoke is provided on the bottom wall, and the second yoke is provided on the first mount; the first iron core is arranged on one side of the fixing part relative to the first magnetic yoke, and the second iron core is arranged on the other side of the fixing part;
and the notch of the first tooth groove faces to the first magnetic steel, and the notch of the second tooth groove faces to the second magnetic steel.
7. The linear motor of claim 6, wherein the first core and the second core are integrally formed.
8. A linear motor according to any one of claims 1 to 7, further comprising a scale fixed to the base and a scale reading head provided on the second fixing member opposite the scale.
9. The linear motor of claim 8, wherein the slide mechanism further includes a guide rail disposed between the first side wall and the top wall and between the second side wall and the top wall.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010922162.6A CN112234795B (en) | 2020-09-04 | 2020-09-04 | Linear motor |
| PCT/CN2020/123499 WO2022047941A1 (en) | 2020-09-04 | 2020-10-26 | Linear motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010922162.6A CN112234795B (en) | 2020-09-04 | 2020-09-04 | Linear motor |
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| CN112234795A CN112234795A (en) | 2021-01-15 |
| CN112234795B true CN112234795B (en) | 2022-01-07 |
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| CN218041165U (en) * | 2022-06-30 | 2022-12-13 | 瑞声光电科技(常州)有限公司 | Direct-drive system |
| CN218041162U (en) * | 2022-06-30 | 2022-12-13 | 瑞声光电科技(常州)有限公司 | Direct-drive system |
| CN219296394U (en) * | 2022-06-30 | 2023-07-04 | 瑞声光电科技(常州)有限公司 | Direct-drive transmission system |
| CN115173667A (en) * | 2022-07-26 | 2022-10-11 | 河北工业大学 | Double-side modular short primary permanent magnet transverse flux linear motor |
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| CN109167503B (en) * | 2018-08-24 | 2020-12-29 | 深圳市马太智能科技有限公司 | Low-voltage linear motor, motor module, assembly line body, system and control method |
| CN109462320A (en) * | 2018-11-02 | 2019-03-12 | 安徽大学 | The double-deck reversed dip winding coreless permanent magnet linear synchronous motor |
| CN209767364U (en) * | 2019-04-12 | 2019-12-10 | 河南理工大学 | Combined type low-cogging-force permanent magnet linear motor |
| CN110649782B (en) * | 2019-09-12 | 2020-09-15 | 珠海格力电器股份有限公司 | Primary iron core staggered driving structure, linear motor and numerical control equipment |
| CN111224530B (en) * | 2019-11-25 | 2021-01-15 | 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 |
-
2020
- 2020-09-04 CN CN202010922162.6A patent/CN112234795B/en active Active
- 2020-10-26 WO PCT/CN2020/123499 patent/WO2022047941A1/en active Application Filing
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| CN112234795A (en) | 2021-01-15 |
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