CN110545022B - Linear motor with encircling elastic sheet structure and implementation method thereof - Google Patents
Linear motor with encircling elastic sheet structure and implementation method thereof Download PDFInfo
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- CN110545022B CN110545022B CN201910858993.9A CN201910858993A CN110545022B CN 110545022 B CN110545022 B CN 110545022B CN 201910858993 A CN201910858993 A CN 201910858993A CN 110545022 B CN110545022 B CN 110545022B
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- 238000000034 method Methods 0.000 title claims abstract description 11
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 24
- 239000010959 steel Substances 0.000 claims abstract description 24
- 230000005684 electric field Effects 0.000 claims description 6
- 239000012634 fragment Substances 0.000 claims description 3
- 230000005389 magnetism Effects 0.000 claims 4
- 238000009826 distribution Methods 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 3
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 description 10
- 229910052742 iron Inorganic materials 0.000 description 5
- 230000006978 adaptation Effects 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012827 research and development Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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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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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
The invention discloses a linear motor with an encircling type elastic sheet structure, which comprises a shell, wherein a mass block is arranged in the shell, magnetic steel is connected in the mass block, a support is connected at the bottom of the shell, a flexible circuit board is connected above the support, a coil is connected above the flexible circuit board, the magnetic steel is positioned in the coil, a spring sheet is arranged between the mass block and the shell as well as between the mass block and the support, and the spring sheet is of a concave structure; the invention also discloses a realization method of the linear motor with the encircling elastic sheet structure. The two spring pieces are arranged to form an encircling structure, the cantilever is arranged above the spring piece, the two cantilevers are arranged below the spring piece, and the deformed cantilevers of the spring piece are longer and can have better stress distribution, so that the product has better reliability and the service life of the product is greatly prolonged.
Description
Technical Field
The invention belongs to the technical field of linear motors, and particularly relates to a linear motor with an encircling elastic sheet structure and an implementation method thereof.
Background
The miniature vibration motor is an indispensable component of electronic products such as mobile phones, tablet computers, handheld game consoles and the like, and provides tactile feedback for users. Along with the competition of the smart phone market, mobile phone manufacturers pay more and more attention to the touch experience of users, and the requirements of customers on the vibration feedback effect of the motor are higher and higher, so that a linear vibration motor different from a traditional rotor motor appears in the market. Compared with the traditional rotor motor, the linear motor has great advantages in vibration characteristics, response time, service life, noise and the like, can provide various vibration modes, and provides abundant, diverse, fine and vivid tactile feedback for users. At present Z axle vibration linear motor is flat cylindrical form in market mainly, and this structure occupation space is big, is unfavorable for electronic product's frivolous demand, along with square linear vibration motor's gradually popularizing, for the pile up of adaptation cell-phone and the rational utilization in space, research and development a section Z is very much market value and meaning to the square linear motor of vibration.
Disclosure of Invention
The present invention is directed to a linear motor with an encircling elastic sheet structure, so as to solve the problems mentioned in the background art. The linear motor with the surrounding type elastic sheet structure has the characteristics of simple structure, convenience in manufacturing, quick response time, low stop time, small volume and large vibration sense.
The invention also aims to provide a method for realizing the linear motor with the encircling elastic sheet structure.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a linear motor of shape shell fragment structure embraces, includes the casing, and the inside of casing is equipped with the quality piece, and the internal connection of quality piece has the magnet steel, and the bottom of casing is connected with the support, and the top of support is connected with flexible circuit board, and flexible circuit board's top is connected with the coil, and the magnet steel is located the inside of coil, is equipped with the spring leaf between quality piece and casing and the support, and the spring leaf is "spill" structure.
Further, a cavity is formed in the mass block, a magnetic frame is fixed in the cavity, and the magnetic steel is fixed in the magnetic frame.
Further, the bottom of the magnetic steel is connected with a yoke.
Furthermore, the number of the spring pieces is two, the two spring pieces form an encircling structure, and the mass block is positioned inside the two spring pieces.
In the invention, the end parts of the spring pieces are connected with connecting pieces.
Furthermore, a cantilever is arranged above the spring piece, and two cantilevers are arranged below the spring piece.
In the invention, the connecting sheet above the mass block is in contact connection with the magnetic frame, and the connecting sheet below the mass block is in contact connection with the bracket.
Further, in the present invention, the mass block is connected to the magnetic frame by interference fit.
Further, the implementation method of the linear motor with the encircling elastic sheet structure comprises the following steps:
the shell and the bracket form a closed cavity;
the magnetic frame and the magnetic steel provide a magnetic field for the motor to drive;
thirdly, the coil and the flexible circuit board 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 Z axis;
and the four spring pieces are welded with each other to form an encircling structure, and the encircling structure is used for connecting the mass block, the shell, the mass block and the bracket, so that elasticity is provided for movement, and the motor can vibrate up and down in a reciprocating manner along the Z axis.
Further, according to the implementation method of the linear motor with the encircling type elastic sheet structure, a cavity is formed in a mass block, a magnetic frame is fixed in the cavity, the magnetic steel is fixed in the magnetic frame, the bottom of the magnetic steel is connected with a yoke, the number of the spring sheets is two, the two spring sheets form the encircling type structure, the mass block is located in the two spring sheets, the end portions of the spring sheets are connected with connecting sheets, a cantilever is arranged above the spring sheets, the two cantilevers are arranged below the spring sheets, the connecting sheets above the mass block are in contact connection with the magnetic frame, the connecting sheets below the mass block are in contact connection with a support, and the mass block is in interference fit connection with the magnetic frame.
Compared with the prior art, the invention has the beneficial effects that:
1. the two spring pieces are arranged to form an encircling structure, the cantilever is arranged above the spring piece, the two cantilevers are arranged below the spring piece, and the deformed cantilevers of the spring piece are longer and can have better stress distribution, so that the product has better reliability and the service life of the product is greatly prolonged;
2. according to the invention, the yoke iron is connected below the magnetic steel, the utilization rate of a magnetic field is increased through the yoke iron, and the driving force of a motor is provided;
3. the embracing type spring pieces are positioned at the left side and the right side of the mass block, so that the mode of the motor F0 is Z direction.
Drawings
FIG. 1 is an exploded view of the structure of the present invention;
FIG. 2 is a schematic cross-sectional view of the present invention;
FIG. 3 is a schematic view of the connection structure of the spring plate and the mass block of the present invention;
FIG. 4 is a schematic view of the spring plate of the present invention;
in the figure: 1. a housing; 2. a mass block; 3. a magnetic frame; 4. magnetic steel; 5. a yoke; 6. a spring plate; 7. a coil; 8. a support; 9. a flexible circuit board; 10. and (7) connecting the sheets.
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.
Examples
Referring to fig. 1-4, the present invention provides the following technical solutions: the utility model provides a linear motor of shape shell fragment structure embraces, includes casing 1, and the inside of casing 1 is equipped with quality piece 2, and the internal connection of quality piece 2 has magnet steel 4, and the bottom of casing 1 is connected with support 8, and the top of support 8 is connected with flexible circuit board 9, and the top of flexible circuit board 9 is connected with coil 7, and magnet steel 4 is located the inside of coil 7, is equipped with spring leaf 6 between quality piece 2 and casing 1 and the support 8, and spring leaf 6 is "spill" structure.
Furthermore, a cavity is formed in the mass block 2, a magnetic frame 3 is fixed in the cavity, and the magnetic steel 4 is fixed in the magnetic frame 3.
By adopting the technical scheme, the casing 1 forms an appearance and accommodates an internal vibration structure, and the bracket 8 is used for sealing the containing cavity of the casing 1.
Further, the bottom of the magnetic steel 4 is connected with a yoke 5.
By adopting the technical scheme, the attracting force of the coil is enhanced through the yoke iron 5.
Furthermore, the number of the spring pieces 6 is two, the two spring pieces 6 form an encircling structure, the mass block 2 is located inside the two spring pieces 6, the connecting piece 10 located above the mass block 2 is in contact connection with the magnetic frame 3, and the connecting piece 10 located below the mass block 2 is in contact connection with the support 8.
By adopting the technical scheme, the elastic force is provided for the movement of the vibrator.
Further, the end parts of the spring pieces 6 are connected with connecting pieces 10.
Through adopting above-mentioned technical scheme, the welding equipment between two spring pieces 6 of being convenient for.
Furthermore, a cantilever is arranged above the spring piece 6, and two cantilevers are arranged below the spring piece 6.
Through adopting above-mentioned technical scheme, the deformation cantilever of spring leaf is longer, can have better stress distribution for this product has better reliability, and its life also lengthens greatly.
Further, the mass block 2 is connected with the magnetic frame 3 through interference fit.
By adopting the technical scheme, the magnetic frame 3 and the mass block 2 are assembled tightly.
Further, the implementation method of the linear motor with the encircling elastic sheet structure comprises the following steps:
the shell 1 and the bracket 8 form a closed cavity;
the magnetic frame 3 and the magnetic steel 4 provide a magnetic field for driving the motor;
thirdly, the coil 7 and the flexible circuit board 9 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 Z axis;
and the four spring pieces 6 are welded with each other to form an encircling structure, and are connected with the mass block 2, the shell 1, the mass block 2 and the bracket 8 to provide elasticity for movement so that the motor can vibrate up and down in a reciprocating manner along the Z axis.
In conclusion, the two spring pieces are arranged to form the encircling structure, the cantilever is arranged above the spring piece, the two cantilevers are arranged below the spring piece, and the deformed cantilevers of the spring piece are longer and can have better stress distribution, so that the product has better reliability and the service life of the product is greatly prolonged; according to the invention, the yoke iron is connected below the magnetic steel, the utilization rate of a magnetic field is increased through the yoke iron, and the driving force of a motor is provided; the embracing type spring pieces are positioned at the left side and the right side of the mass block, so that the mode of the motor F0 is Z direction.
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 (5)
1. The utility model provides a linear motor of embracing shape shell fragment structure, includes casing (1), its characterized in that: the mass block (2) is arranged in the shell (1), magnetic steel (4) is connected in the mass block (2), a support (8) is connected to the bottom of the shell (1), a flexible circuit board (9) is connected above the support (8), a coil (7) is connected above the flexible circuit board (9), the magnetic steel (4) is located in the coil (7), spring pieces (6) are arranged between the mass block (2) and the shell (1) and between the mass block and the support (8), the spring pieces (6) are of a concave structure, the number of the spring pieces (6) is two, the two spring pieces (6) form an encircling structure, and the mass block (2) is located in the two spring pieces (6);
the end parts of the spring pieces (6) are connected with connecting pieces (10), a cantilever is arranged above the spring pieces (6), and two cantilevers are arranged below the spring pieces (6);
a cavity is formed in the mass block (2), a magnetic frame (3) is fixed in the cavity, and the magnetic steel (4) is fixed in the magnetic frame (3);
the connecting piece (10) positioned above the mass block (2) is in contact connection with the magnetic frame (3), and the connecting piece (10) positioned below the mass block (2) is in contact connection with the bracket (8).
2. The linear motor of claim 1, wherein: the bottom of the magnetic steel (4) is connected with a yoke (5).
3. The linear motor of claim 1, wherein: the mass block (2) is connected with the magnetic frame (3) in an interference fit manner.
4. The method for realizing the linear motor with the encircling elastic sheet structure according to any one of claims 1-3, comprising the following steps:
a closed cavity is formed by the casing (1) and the bracket (8);
the magnetic frame (3) and the magnetic steel (4) provide a magnetic field for driving the motor;
thirdly, the coil (7) and the flexible circuit board (9) 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 Z axis;
and the four spring pieces (6) are welded with each other to form an encircling structure, and the encircling structure is connected with the mass block (2) and the bracket (8) to provide elasticity for movement so that the motor can vibrate up and down in a reciprocating manner along the Z axis.
5. The method for realizing the linear motor with the encircling elastic sheet structure according to claim 4, wherein the method comprises the following steps: the die cavity has been seted up to the inside of quality piece (2), the inside of die cavity is fixed with magnetism frame (3), magnet steel (4) are fixed in the inside of magnetism frame (3), the bottom of magnet steel (4) is connected with yoke (5), spring leaf (6) are equipped with two altogether, and two spring leaf (6) are constituteed and are embraced the shape structure, quality piece (2) are located the inside of two spring leaf (6), the tip of spring leaf (6) all is connected with connection piece (10), the top of spring leaf (6) is equipped with a cantilever, and the below of spring leaf (6) is equipped with two cantilevers, is located connection piece (10) and the contact of magnetism frame (3) of quality piece (2) top are connected, connection piece (10) and support (8) the contact that are located quality piece (2) below are connected, quality piece (2) are connected through interference fit with magnetism frame (3).
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910858993.9A CN110545022B (en) | 2019-09-11 | 2019-09-11 | Linear motor with encircling elastic sheet structure and implementation method thereof |
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| CN201910858993.9A CN110545022B (en) | 2019-09-11 | 2019-09-11 | Linear motor with encircling elastic sheet structure and implementation method thereof |
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| CN110545022B true CN110545022B (en) | 2021-07-23 |
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Families Citing this family (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN111479199A (en) * | 2020-04-16 | 2020-07-31 | 浙江省东阳市东磁诚基电子有限公司 | Novel screen sounding structure and implementation method thereof |
| CN111463985A (en) * | 2020-05-11 | 2020-07-28 | 浙江省东阳市东磁诚基电子有限公司 | Novel linear vibration motor with high driving force and implementation method thereof |
| WO2022000437A1 (en) * | 2020-07-02 | 2022-01-06 | 瑞声声学科技(深圳)有限公司 | Linear vibration motor |
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Denomination of invention: A linear motor with encircling shrapnel structure and its implementation method Effective date of registration: 20220622 Granted publication date: 20210723 Pledgee: Dongyang Branch of China Construction Bank Co.,Ltd. Pledgor: ZHEJIANG DONGYANG DONGCI CHENGJI ELECTRONIC Co.,Ltd. Registration number: Y2022330001025 |
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