CN110932515A - Horizontal linear motor structure and implementation method thereof - Google Patents
Horizontal linear motor structure and implementation method thereof Download PDFInfo
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- CN110932515A CN110932515A CN201911365877.XA CN201911365877A CN110932515A CN 110932515 A CN110932515 A CN 110932515A CN 201911365877 A CN201911365877 A CN 201911365877A CN 110932515 A CN110932515 A CN 110932515A
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
- H02K33/02—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs
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Abstract
The invention discloses a horizontal linear motor structure, which comprises a shell, wherein a bottom plate is connected below the shell, a stator assembly is connected above the bottom plate, a vibrator assembly is arranged in the shell and comprises a mass block, pole pieces and magnetic steel assemblies, the two opposite sides in the mass block are respectively connected with the magnetic steel assemblies, the two sides of the magnetic steel assemblies are connected with the pole pieces, the mass block is connected with the shell through spring pieces, the stator assembly comprises a coil, an iron core and an FPC (flexible printed circuit), the FPC circuit board is connected above the bottom plate, and the coil is arranged above the FPC circuit board; the invention also discloses a method for realizing the horizontal linear motor structure; the magnetic steel, the yoke iron and the pole piece in the vibrator assembly, the iron core and the support frame in the stator assembly form a magnetic field loop, and the magnetic field is kept in an effective area as much as possible, so that the utilization rate of the magnetic field is increased, the driving force is improved, and the leakage of the magnetic field is reduced.
Description
Technical Field
The invention belongs to the technical field of linear motors, and particularly relates to a horizontal linear motor structure and an implementation method thereof.
Background
The motor is as the sense of touch source of products such as smart mobile phone, intelligent dress, and along with the experience demand that the user improves day by day, the change of covering the ground has also taken place to the structure. From cylindrical motors, to flat motors, to linear motors, the tactile sensation provided is increasingly varied and refined. In high-end equipment, linear motors are currently used substantially in full line for experience. The linear motors are classified into a circular linear motor and a square linear motor in terms of shape, and are classified into a Z-axis linear motor (the vibration direction is the thickness direction) and a horizontal linear motor (the vibration direction is the non-thickness direction) in the vibration direction. Limited by cost differences, there are currently more Z-axis linear motors and fewer horizontal motors in the market. How to improve the advantages of the horizontal motor and further improve the cost performance is very important.
Disclosure of Invention
The present invention is directed to a horizontal linear motor structure to solve the above problems. The horizontal linear motor structure provided by the invention has the characteristics of reducing magnetic leakage on the premise of keeping the vibration inductance, reducing the motor stopping time through electromagnetic damping, along with strong manufacturability and high space utilization rate.
The invention also aims to provide a method for realizing the structure of the horizontal linear motor.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a horizontal linear motor structure, which comprises a housing, the below of casing is connected with the bottom plate, the top of bottom plate is connected with stator module, the inside of casing is equipped with vibrator subassembly, vibrator subassembly includes the quality piece, pole piece and magnetic steel assembly, wherein, the inside relative both sides of quality piece are connected with magnetic steel assembly respectively, magnetic steel assembly's both sides are connected with the pole piece, the quality piece passes through the spring leaf and is connected with the casing, stator module includes the coil, iron core and FPC circuit board, wherein, FPC circuit board connects the top at the bottom plate, FPC circuit board's top is equipped with the coil, the inside of coil is equipped with the iron core, coil and FPC circuit board electric connection, vibrator subassembly cover is in stator module's outside, the top of.
Further, a support is connected above the mass block.
Further, the magnetic steel assembly comprises two magnetic steels and a yoke, wherein the yoke is connected between the two magnetic steels.
Further, the coil is wound on the support frame, the support frame is connected above the bottom plate, and the iron core is connected inside the support frame.
Furthermore, two sides of a connecting arm for connecting the spring piece and the shell are respectively connected with a second stop block.
In the invention, a first stop block is connected to one side, far away from the mass block, of a connecting arm, connected with the spring piece and the mass block.
In the invention, the yoke, the pole piece, the iron core and the support frame are all magnetic conductive members.
Furthermore, the mass block is internally provided with a cavity, and the pole piece and the magnetic steel assembly are both positioned in the cavity.
Further, the method for implementing the horizontal linear motor structure comprises the following steps:
the shell and the bottom plate form a closed cavity for accommodating the internal vibrator component;
the vibrator component mainly comprises a mass block, a pole piece and a magnetic steel component, wherein the magnetic steel component comprises magnetic steel and a yoke iron and provides a magnetic field for driving a motor;
thirdly, the coil and the FPC form a circuit, an electric field is formed when the circuit is electrified, the electric field and the magnetic field interact with each other, and the motor is driven to vibrate along the X axis;
the spring piece is connected with the vibrator assembly and the shell and provides elasticity for movement, so that the motor reciprocates along the X axis;
the limiting plate is used for limiting the stroke of the vibrator assembly and limiting the vibration of the motor along the X axis;
and the second stop block between the shell and the spring piece is used for increasing the distance between the shell and the spring piece, so that the motion spaces of two sides of the spring piece are consistent.
In the method for realizing the horizontal linear motor structure, a support is connected above the mass block, the magnetic steel assembly comprises two magnetic steels and a yoke, wherein the yoke is connected between the two magnetic steels, the coil is wound on the support, the support is connected above the bottom plate, the iron core is connected inside the support, two sides of a connecting arm for connecting the spring piece and the shell are respectively connected with a second stop block, one side, far away from the mass block, of the connecting arm for connecting the spring piece and the mass block is connected with a first stop block, the yoke, the pole piece, the iron core and the support are magnetic conductive components, a cavity is formed inside the mass block, and the pole piece and the magnetic steel assembly are both positioned inside the.
Compared with the prior art, the invention has the beneficial effects that:
1. the limiting plate is used for limiting the maximum stroke of the vibrator assembly, so that the spring piece is prevented from being damaged under the condition of extreme tooling;
2. the first stop block and the second stop block which is arranged opposite to the first stop block are used for fixing the spring piece, and the second stop block between the shell and the spring piece is used for increasing the distance between the shell and the spring piece so as to ensure that the movement spaces at two sides of the spring piece are consistent;
3. according to the invention, the yoke iron is arranged between the two magnetic steels, and the magnetic induction lines are guided to the coil, the iron core and the support frame on the stator assembly, so that the utilization rate of a magnetic field is increased, and the magnetic steels are favorably assembled;
4. the yoke, the pole piece, the iron core, the support frame and other structures are all made of magnetic materials and are conductors, and when the motor works, the relative magnetic field movement or the internal magnetic field intensity of the motor is constantly changed, so that iron loss can be generated and becomes damping, the power-off stop of the motor is accelerated, and the stop time is shortened; meanwhile, the central shaft of the coil is provided with an iron core, the magnetic steel still does reciprocating motion after the coil is powered off, and the coil generates larger induced electromotive force, so that energy is lost and damping is achieved, the reciprocating motion of the mass block stops faster after the power off, and the stopping time is shortened;
5. the magnetic steel, the yoke iron and the pole piece in the vibrator assembly, the iron core and the support frame in the stator assembly form a magnetic field loop, and the magnetic field is kept in an effective area as much as possible, so that the utilization rate of the magnetic field is increased, the driving force is improved, and the leakage of the magnetic field is reduced;
6. the driving force of the invention mainly comprises: one part is the ampere force applied to the magnetic field formed by the coil on the vibrator component; one part is the magnetic conduction characteristic of the iron core and the support frame, the coil generates a magnetic field to disturb the magnetic force balanced by the iron core on the stator assembly, the support frame and the pole piece, the magnetic steel and the yoke iron on the vibrator assembly, so that larger driving force is ensured, and larger vibration is generated;
7. the invention has fewer stacked parts in the motor moving direction and is suitable for the motor with smaller size in the stroke direction;
8. the surface of the mass block is provided with the table top, and the FPC in the stator assembly is avoided, so that the FPC cannot be damaged by the mass block under any working condition and severe conditions, and an open circuit between the motor and an external circuit cannot be caused.
Drawings
FIG. 1 is an exploded view of the structure of the present invention;
FIG. 2 is a schematic structural diagram of a vibrator assembly according to the present invention;
FIG. 3 is a schematic view of a stator assembly of the present invention;
FIG. 4 is a front cross-sectional structural view of the present invention;
FIG. 5 is a side cross-sectional structural view of the present invention;
fig. 6 is a schematic diagram of the electromagnetic drive of the present invention.
In the figure: 1. a housing; 2. a support; 3. a mass block; 4. pole pieces; 5. magnetic steel; 6. a yoke; 7. a coil; 8. a support frame; 9. an iron core; 10. a spring plate; 11. a first stopper; 12. a second stopper; 13. a limiting plate; 14. an FPC circuit board; 15. a base plate.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example 1
Referring to fig. 1-6, the present invention provides the following technical solutions: a horizontal linear motor structure comprises a machine shell 1, a bottom plate 15 is connected below the machine shell 1, a stator component is connected above the bottom plate 15, a vibrator component is arranged in the machine shell 1, the vibrator component comprises a mass block 3, a pole piece 4 and a magnetic steel component, wherein, the two opposite sides inside the mass block 3 are respectively connected with a magnetic steel component, the two sides of the magnetic steel component are connected with pole pieces 4, the mass block 3 is connected with the shell 1 through spring pieces 10, the stator component comprises a coil 7, an iron core 9 and an FPC circuit board 14, wherein, FPC circuit board 14 is connected in the top of bottom plate 15, and FPC circuit board 14's top is equipped with coil 7, and coil 7's inside is equipped with iron core 9, and coil 7 and FPC circuit board 14 electric connection, vibrator subassembly cover are in stator module's outside, and the cavity has been seted up to the inside of quality piece 3, and pole piece 4 and magnetic steel component all are located the inside of cavity, and the both sides that bottom plate 15's top is located vibrator subassembly are connected with limiting plate 13 respectively.
Further, a bracket 2 is connected above the mass block 3.
Through adopting above-mentioned technical scheme, support 2 passes through glue with quality piece 3 and bonds, provides support and assembly surface for the installation of magnet steel assembly and pole piece 4.
Further, the magnetic steel assembly comprises two magnetic steels 5 and a yoke 6, wherein the yoke 6 is connected between the two magnetic steels 5.
Through adopting above-mentioned technical scheme, magnet steel 5 passes through glue with yoke 6 and bonds, constitutes the magnetic field return circuit with iron core 9 and support frame 8, with the magnetic field as much as possible remain in the effective area, both increaseed the magnetic field utilization ratio, improved drive power, reduced the magnetic field again and revealed.
Further, coil 7 twines on support frame 8, and support frame 8 is connected in the top of bottom plate 15, and iron core 9 is connected in support frame 8.
Through adopting above-mentioned technical scheme, through the setting of support frame 8, the installation of coil 7 and iron core 9 of being convenient for.
Further, the yoke 6, the pole piece 4, the iron core 9 and the support frame 8 are all magnetic conductive members, such as ferrite stainless steel, electroplated SPCC and the like, and have a better ability of resisting environmental corrosion on the premise of ensuring good magnetic conductivity, and the stainless steel member is selected for use in the embodiment.
By adopting the technical scheme, when the motor works, the motor moves relative to a magnetic field or the intensity of the magnetic field in the motor continuously changes, iron loss can be generated to form damping, the power-off and stop of the motor are accelerated, and the stop time is shortened; meanwhile, the central shaft of the coil is provided with the iron core, the magnetic steel still does reciprocating motion after the coil is powered off, and the coil generates larger induced electromotive force, so that energy is lost and damping is achieved, the reciprocating motion stops faster after the vibrator is powered off, and the stop time is shortened.
Example 2
The present embodiment is different from embodiment 1 in that: furthermore, two sides of a connecting arm connecting the spring piece 10 and the housing 1 are respectively connected with a second stop block 12, and one side of the connecting arm connecting the spring piece 10 and the mass block 3, which is far away from the mass block 3, is connected with a first stop block 11.
By adopting the technical scheme, the first stop block 11 and the second stop block 12 which is arranged opposite to the first stop block 11 are used for fixing the spring piece 10, so that the welding flatness is provided for welding the spring piece 10 and the mass block 3, and the spring piece 10 and the shell 1, the welding firmness is enhanced, and the consistency of product frequency is ensured; the second stop 12 between the casing 1 and the spring plate 10 is used for increasing the distance between the casing 1 and the spring plate 10 and ensuring the consistent movement space of the two sides of the spring plate 10.
Further, the implementation method of the horizontal linear motor structure of the invention comprises the following steps:
the first step, the machine shell 1 and the bottom plate 15 form a closed cavity for accommodating the internal vibrator components;
the vibrator component mainly comprises a mass block 3, a pole piece 4 and a magnetic steel component, wherein the magnetic steel component comprises magnetic steel 5 and a yoke 6 and provides a magnetic field for driving a motor;
thirdly, the coil 7 and the FPC board 14 form a circuit, an electric field is formed when the circuit is electrified, the electric field and the magnetic field interact with each other, and the motor is driven to vibrate along the X axis;
the spring piece 10 is connected with the vibrator assembly and the shell 1 and provides elasticity for movement, so that the motor can reciprocate along the X axis;
the limiting plate 13 is used for limiting the stroke of the vibrator assembly and limiting the vibration of the motor along the X axis;
and the first stop 11 and the second stop 12 opposite to the first stop 11 are used for fixing the spring piece 10, and the second stop 12 between the shell 1 and the spring piece 10 is used for increasing the distance between the shell 1 and the spring piece 10, so that the consistent motion space of the two sides of the spring piece 10 is ensured.
In conclusion, the limiting plate 13 is used for limiting the maximum stroke of the vibrator assembly, so that the spring piece 10 is not damaged under the condition of extreme tooling; according to the invention, the first stop 11 and the second stop 12 arranged opposite to the first stop 11 are used for fixing the spring piece 10, and the second stop 12 between the shell 1 and the spring piece 10 is used for increasing the distance between the shell 1 and the spring piece 10, so that the movement spaces on two sides of the spring piece 10 are consistent; according to the invention, the yoke 6 is arranged between the two magnetic steels 5, and magnetic induction lines are guided to the coil 7, the iron core 9 and the support frame 8 on the stator component, so that the utilization rate of a magnetic field is increased, and the magnetic steels are favorably assembled; the yoke 6, the pole piece 4, the iron core 9, the support frame 8 and other structures are all made of magnetic materials and are conductors, and when the motor works, the relative magnetic field movement or the internal magnetic field intensity of the motor is constantly changed, iron loss can be generated and becomes damping, the power-off stop of the motor is accelerated, and the stop time is shortened; meanwhile, an iron core 9 is arranged at the central shaft of the coil 7, the magnetic steel 5 still does reciprocating motion after the power is cut off, and the coil 7 generates larger induced electromotive force, so that energy is lost and becomes damping, the reciprocating motion stops faster after the mass block 3 is cut off, and the stopping time is shortened; the magnetic steel 5, the yoke iron 6 and the pole piece 4 in the vibrator assembly, the iron core 9 and the support frame 8 in the stator assembly form a magnetic field loop, and a magnetic field is kept in an effective area as much as possible, so that the utilization rate of the magnetic field is increased, the driving force is improved, and the leakage of the magnetic field is reduced; the driving force of the invention mainly comprises: part is the ampere force that the coil 7 receives in the magnetic field formed by the vibrator component; one part is the magnetic conduction characteristic of the iron core 9 and the support frame 8, the coil generates a magnetic field, the magnetic force balanced by the iron core 9 and the support frame 8 on the stator component, the pole piece 4, the magnetic steel 5 and the yoke 6 on the vibrator component is disturbed, the larger driving force is ensured, and the larger vibration sense is generated; the invention has fewer stacked parts in the motor moving direction and is suitable for the motor with smaller size in the stroke direction; the surface of the mass block 3 has a table top, and the FPC circuit board 14 in the stator assembly is avoided, so that the FPC circuit board 14 cannot be damaged by the mass block under any working condition and severe conditions, and an open circuit between a motor and an external circuit cannot be caused.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (10)
1. A horizontal linear motor structure comprising a casing (1), characterized in that: a bottom plate (15) is connected below the machine shell (1), a stator component is connected above the bottom plate (15), a vibrator component is arranged in the machine shell (1), the vibrator component comprises a mass block (3), a pole piece (4) and a magnetic steel component, wherein, the two opposite sides inside the mass block (3) are respectively connected with a magnetic steel component, the two sides of the magnetic steel component are connected with pole pieces (4), the mass block (3) is connected with the shell (1) through spring pieces (10), the stator component comprises a coil (7), an iron core (9) and an FPC circuit board (14), the motor comprises a stator assembly, a bottom plate (15), a Flexible Printed Circuit (FPC) circuit board (14), a coil (7), an iron core (9), the coil (7) and the FPC circuit board (14) are arranged in the coil (7), the vibrator assembly is sleeved outside the stator assembly, and limiting plates (13) are connected to two sides, located on the two sides of the vibrator assembly, of the top of the bottom plate (15).
2. A horizontal linear motor structure as claimed in claim 1, wherein: and a support (2) is connected above the mass block (3).
3. A horizontal linear motor structure as claimed in claim 2, wherein: the magnetic steel component comprises two magnetic steels (5) and a yoke (6), wherein the yoke (6) is connected between the two magnetic steels (5).
4. A horizontal linear motor structure as claimed in claim 3, wherein: coil (7) winding is on support frame (8), and support frame (8) are connected in the top of bottom plate (15), and iron core (9) are connected in the inside of support frame (8).
5. A horizontal linear motor structure as claimed in claim 4, wherein: and two sides of a connecting arm for connecting the spring piece (10) and the shell (1) are respectively connected with a second stop block (12).
6. A horizontal linear motor structure as claimed in claim 5, wherein: one side, far away from the mass block (3), of a connecting arm, connected with the spring piece (10) and the mass block (3), is connected with a first stop block (11).
7. The structure of a horizontal linear motor according to claim 6, wherein: the yoke iron (6), the pole piece (4), the iron core (9) and the support frame (8) are all magnetic conduction components.
8. A horizontal linear motor structure as claimed in claim 7, wherein: the mass block (3) is internally provided with a cavity, and the pole piece (4) and the magnetic steel assembly are both positioned in the cavity.
9. A method of implementing a horizontal linear motor structure according to any one of claims 1 to 8, comprising the steps of:
the shell (1) and the bottom plate (15) form a closed cavity for accommodating the internal vibrator components;
the vibrator component mainly comprises a mass block (3), a pole piece (4) and a magnetic steel component, wherein the magnetic steel component comprises magnetic steel (5) and a yoke (6) and provides a magnetic field for driving a motor;
thirdly, the coil (7) and the FPC (14) form a circuit, an electric field is formed when the circuit is electrified, the electric field and the magnetic field interact with each other, and the motor is driven to vibrate along the X axis;
the spring piece (10) is connected with the vibrator assembly and the shell (1) and provides elasticity for movement, so that the motor reciprocates along the X axis;
the limiting plate (13) is used for limiting the stroke of the vibrator assembly and limiting the vibration of the motor along the X axis;
and the sixth step, the first stop block (11) and the second stop block (12) which is arranged opposite to the first stop block (11) are used for fixing the spring piece (10), and the second stop block (12) between the shell (1) and the spring piece (10) is used for increasing the distance between the shell (1) and the spring piece (10) so as to ensure that the movement spaces on two sides of the spring piece (10) are consistent.
10. The method of implementing a horizontal linear motor architecture of claim 9, wherein: the top of quality piece (3) is connected with support (2), magnetic steel assembly includes two magnet steel (5) and yoke (6), wherein, be connected with yoke (6) between two magnet steel (5), coil (7) winding is on support frame (8), the top at bottom plate (15) is connected in support frame (8), the inside at support frame (8) is connected in iron core (9), the linking arm both sides that spring leaf (10) are connected with casing (1) are connected with second dog (12) respectively, one side that quality piece (3) were kept away from to the linking arm that spring leaf (10) and quality piece (3) are connected with first dog (11), yoke (6), pole piece (4), iron core (9) and support frame (8) are the magnetic conduction component, the cavity has been seted up to the inside of quality piece (3), pole piece (4) and magnetic steel assembly all are located the inside of cavity.
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| CN111725966B (en) * | 2020-07-01 | 2021-08-17 | 浙江省东阳市东磁诚基电子有限公司 | High-driving horizontal linear motor and implementation method thereof |
| WO2022001644A1 (en) * | 2020-07-01 | 2022-01-06 | 浙江省东阳市东磁诚基电子有限公司 | Linear vibration motor having non-contact vibration damping, and implementation method therefor |
| WO2022142188A1 (en) * | 2020-12-30 | 2022-07-07 | 歌尔股份有限公司 | Linear vibration motor and electronic device |
| CN113872410A (en) * | 2021-10-18 | 2021-12-31 | 浙江省东阳市东磁诚基电子有限公司 | Motor with wave-shaped elastic sheet structure and implementation method thereof |
| CN113872410B (en) * | 2021-10-18 | 2023-04-18 | 浙江省东阳市东磁诚基电子有限公司 | Motor with wave-shaped elastic sheet structure and implementation method thereof |
| CN114421730A (en) * | 2021-12-31 | 2022-04-29 | 歌尔股份有限公司 | Linear vibration motor |
| CN114421730B (en) * | 2021-12-31 | 2024-03-15 | 歌尔股份有限公司 | Linear vibration motor |
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