CN209516884U - A kind of linear vibration motor - Google Patents
A kind of linear vibration motor Download PDFInfo
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- CN209516884U CN209516884U CN201821888381.1U CN201821888381U CN209516884U CN 209516884 U CN209516884 U CN 209516884U CN 201821888381 U CN201821888381 U CN 201821888381U CN 209516884 U CN209516884 U CN 209516884U
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Abstract
The utility model discloses a kind of linear vibration motors, including upper casing and lower cover, mover assembly and two stator modules are provided in upper casing and lower cover, two stator modules are symmetricly set on above and below mover assembly, each stator module includes three or more the permanent magnets being arranged in X direction, mover assembly includes mass block and FPC plate, the upper surface and lower end surface of mass block are respectively arranged with more than two coils arranged in X direction, FPC plate has the double-deck connector for being welded to connect with all coils, FPC plate can be connect far from one end of the double-deck connector with external circuit.The utility model uses the multi-thread coil structures of bilayer arrangement, can provide biggish driving force for the vibration of mover assembly, improve the vibrating effect and performance of the motor, and the design of the double-deck connector of FPC plate, easy to assembly, reduces production cost.
Description
Technical field
The utility model relates to motor technologies field more particularly to a kind of linear vibration motors.
Background technique
With the fast development of electronic product, especially in the mobile terminal devices such as mobile phone, tablet computer, these electronic equipments
Substantially have using vibration generating arrangement, for prevent the noise jamming from electronic device other people.Traditional vibration fills
It sets using based on the rotor motor being eccentrically rotated, it is to realize mechanical oscillation by the rotation of off-centred dipole, since bias is shaken
For son in rotary course, commutator and brush can generate mechanical friction and electric spark etc., will affect the revolving speed of off-centred dipole, into
And device vibrating effect is influenced, therefore, current vibration generating arrangement mostly uses the better linear motor of performance.
Linear motor, also referred to as linear electric machine, line motor, pusher motor etc., most common linear motor type are plates
Formula, U-type groove formula and tubular type are a kind of technologies for converting electrical energy into linear motion mechanical energy, pass through the mutual expelling force of magnet
So that moving element is suspended, while the moving element is directly driven by magnetic force, without it is still necessary to via such as such as rotating motor
The transmission mechanisms such as gear set are driven, and therefore, the moving element that linear motor can enable it be driven carries out high acceleration, deceleration
It moves back and forth, by the characteristic, linear motor can be applied in different manufacture processing technique fields, and by as driving
Power source or as provide positioning technology contents.
Currently, with the fast development and fierceness of the industry such as semiconductor, electronics, photoelectricity, Medical Devices and automation control
Competition, the requirement of each field movenent performance linear for motor also increasingly increase, it is expected that motor has high speed, low noise and height
Positioning accuracy etc., therefore linear motor is used in both under many applications to replace the mechanical movement such as traditional servo motor
Mode.But the existing most vibrational system driving force of linear motor is smaller, vibrating effect is poor, influences the property of linear motor
Can, and assemble inconvenient, high production cost.
Utility model content
The utility model above-mentioned existing linear motor there are aiming at the problem that, propose a kind of linear vibration motor.
In order to solve the above-mentioned technical problem, the utility model proposes following technical solutions:
A kind of linear vibration motor, including upper casing and lower cover, be provided in upper casing and lower cover mover assembly and
Two stator modules, two stator modules be symmetricly set on above and below mover assembly and respectively with upper casing and lower cover
It is fixedly connected, each stator module includes three or more the permanent magnets being arranged in X direction, and adjacent permanent magnet is along Z-direction
It magnetizes and its magnetizing direction is on the contrary, the magnetizing direction of corresponding permanent magnet is identical up and down, mover assembly includes mass block and FPC
Plate, the upper surface and lower end surface of mass block are respectively arranged with more than two coils arranged in X direction, the electric current of adjacent coil
It is contrary, above and below coil be symmetrical arranged and current direction it is identical, the quantity of coil fewer than the quantity of permanent magnet two
A, for the coil in outside far from the corresponding permanent magnet in one end of adjacent coil, adjacent coil one end close to each other is corresponding
The same permanent magnet, FPC plate have the double-deck connector for being welded to connect with all coils, and FPC plate is far from the double-deck connector
One end can be connect with external circuit.
The beneficial effects of the utility model are: using the multi-thread coil structures of bilayer arrangement, and with above and below it
Permanent magnet forms the magnetic circuit of diversification, provides biggish driving force so as to the vibration for mover assembly, improves the motor
Vibrating effect and performance, and the design of the double-deck connector of FPC plate, it is easy to assembly, convenient for being welded with upper and lower all coils
Connection, structure is more compact, reduces production cost, improves the benefit of enterprise.
In some embodiments, the upper surface and lower end surface of mass block are separately provided for the first slot of positioned coil
Body, the second groove body that the bottom surface of two the first groove bodies is respectively arranged with is arranged on mass block jagged, and notch is connected to two first
Groove body and two the second groove bodies, the double-deck connector can enter along notch and be placed in two the second groove bodies.
In some embodiments, two layers of the double-deck connector respectively includes the interconnecting piece matched with the second groove body and determines
Position portion, interconnecting piece is perpendicular with positioning region, and two positioning regions are connected far from one end of interconnecting piece.
In some embodiments, mass block includes the first mass block and is respectively symmetrically connected to the first mass block both ends
Second mass block, the first mass block and two the second mass blocks arrange in X direction, and the thickness of the first mass block is less than the second mass
The thickness of block, stator module are located between two the second mass blocks, and two the first groove bodies and notch are located on the first mass block.
In some embodiments, FPC plate has the first bending part and the second bending part, be provided on the second mass block with
The third groove body that first bending part and the second bending part match.
In some embodiments, it is arranged in X direction in upper casing there are two the limited block matched with mover assembly, moves
Sub-component is positioned between the two limiting blocks, and limited block is in several fonts and is fixed on the top in casing.
In some embodiments, the both ends of mover assembly in X direction pass through spring and upper casing elastic connection respectively, and two
Mover assembly is suspended in upper casing by a spring, and spring is U-shaped, the opening of spring towards mover assembly, one side of spring with
Mover assembly is welded to connect, and the another side of spring and upper casing are welded to connect, and vibration section is formed between mover assembly and spring.
In some embodiments, the both ends of mover assembly in X direction are respectively arranged with the protection block matched with spring.
In some embodiments, the width of spring is gradually reduced from both ends to centre, and the bending part of spring, which is provided with, to be added
Wide portion and more than two third bending parts.
In some embodiments, the junction of spring and mover assembly is provided with stiffening piece.
It is all to be not specifically noted in addition, in technical solutions of the utility model, it can be by using normal in this field
Rule means realize the technical program.
Detailed description of the invention
Fig. 1 is a kind of stereochemical structure exploded view of linear vibration motor of the utility model.
Fig. 2 is a kind of cross-sectional view of linear vibration motor of the utility model.
Fig. 3 is the schematic perspective view of the utility model mass block.
Fig. 4 is the schematic perspective view of the utility model FPC plate.
Fig. 5 is the main view of the utility model FPC plate.
Fig. 6 is the schematic perspective view of the utility model spring.
Fig. 7 is the schematic perspective view of the utility model upper casing.
Numbering in the drawing explanation, upper casing 1, the 4th groove body 11, lower cover 2, mover assembly 3, mass block 31, the first mass
Block 301, the second mass block 302, third groove body 3021, the 5th groove body 3022, mounting portion 3023, the first groove body 311, the second groove body
312, notch 313, coil 32, FPC plate 33, the double-deck connector 331, interconnecting piece 3311, positioning region 3312, the first bending part 332,
Second bending part 333, stator module 4, permanent magnet 41, spring 5, those widened sections 51, third bending part 52, limited block 6, protection block 7,
Vibrate section 8, stiffening piece 9.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only to explain this
Utility model is not used to limit the utility model.Furthermore it should be noted that term " on ", " side ", " one end ", " top ",
"inner", " outside ", etc. instructions orientation or positional relationship be based on the orientation or positional relationship shown in the drawings, be merely for convenience of
It describes the utility model and simplifies description, rather than the element of indication or suggestion meaning must have a particular orientation or with spy
Fixed orientation construction and operation, therefore should not be understood as limiting the present invention, term " first ", " second " etc. are only used for
Purpose is described, relative importance is not understood to indicate or imply.
Embodiment:
A kind of linear vibration motor, as shown in Fig. 1~2, including upper casing 1 and lower cover 2, in upper casing 1 and lower cover 2
Be provided with mover assembly 3 and two stator modules 4, two stator modules 4 be symmetricly set on above and below mover assembly 3 and
Be welded to connect respectively with upper casing 1 and lower cover 2, two stator modules 4 can also in other manners with upper casing 1 and under
Cover 2 is fixedly connected, and the both ends of mover assembly 3 in X direction pass through spring 5 and 1 elastic connection of upper casing, two springs 5 respectively
Mover assembly 3 is suspended in upper casing 1.
As shown in Fig. 1~2, each stator module 4 includes three or more the permanent magnets 41 being arranged in X direction, adjacent
Permanent magnet 41 magnetize along Z-direction and its magnetizing direction on the contrary, up and down corresponding permanent magnet 41 magnetizing direction it is identical, mover
Component 3 includes mass block 31 and FPC plate 33, and mass block 31 is also referred to as balance weight, vibrating mass, clump weight etc., the upper end of mass block 31
Face and lower end surface are respectively arranged with more than two coils 32 arranged in X direction, that is, have 32 structure of double-layer coil, adjacent line
Circle 32 current direction on the contrary, above and below coil 32 be symmetrical arranged and current direction it is identical, the quantity ratio of coil 32 is forever
The quantity of magnet 41 is two few, that is to say, that the quantity of every layer line circle 32 is fewer by one than 41 quantity of permanent magnet of each stator module 4
A, for the coil 32 in outside far from the corresponding permanent magnet 41 in one end of adjacent coil 32, adjacent coil 32 is close to each other
One end corresponds to the same permanent magnet 41, if every layer of coil 32 is two, two coils 32 are the coil 32 in outside, such as
The coil 32 of every layer of fruit is three or more, then the coil 32 at both ends is the coil 32 in outside.In addition, usually two in stator module 4
41 size of permanent magnet at end is the half of other 41 sizes of permanent magnet, in this way suffered by the both ends convenient for each coil 32 of guarantee
Magnetic fields are identical.
As shown in Fig. 1~5, the upper surface and lower end surface of mass block 31 are separately provided for the first slot of positioned coil 32
Body 311, the second groove body 312 that the bottom surface of two the first groove bodies 311 is respectively arranged with are arranged jagged 313 on mass block 31, lack
Mouth 313 is connected to two the first groove bodies 311 and two the second groove bodies 312, and FPC plate 33 has for being welded to connect with all coils 32
The double-deck connector 331, the double-deck connector 331 can along notch 313 enter and be placed in two the second groove bodies 312, FPC plate
33 one end far from the double-deck connector 331 can be connect with external circuit, be used for as shown in fig. 7, being usually provided on lower casing
The 4th groove body 11 that FPC plate 33 passes through.
In the present invention, as shown in Fig. 2, giving X-direction and Z-direction, X-direction and Z-direction are mutually perpendicular to, the side X
To the direction of vibration of i.e. mover assembly 3, the axis direction of Z-direction, that is, coil 32, the "up" and "down" in text be using Z-direction as
For vertical direction.
It should be noted that flexible circuit board, that is, Flexible Printed Circuit, abbreviation FPC plate 33, it be with
Polyimides or polyester film be it is a kind of with high reliability and excellent flexible printed circuit board made of substrate,
Have the characteristics that Distribution density is high, light-weight, thickness is thin, bending is good；Permanent magnet 41 refers to can protect for a long time under open-circuit condition
The magnet of higher remanent magnetism, also referred to as hard magnetic body are stayed, such as the permanent magnet made of ferrite permanent-magnet materials or by magnet steel etc., preferably
Magnet steel, magnet steel have the characteristics that high rigidity, coercivity value height, high temperature resistant, corrosion resistance are strong, and magnetic property is preferable, is satisfied
After magnetization, remain to keep relatively strong and stable magnetism after removing external magnetic field in for a long time.
When the utility model is used, coil 32 is in the magnetic field formed above and below it, external circuit passes through FPC
Plate 33 makes electric current by coil 32, to make coil 32 by the reversed active force of X-direction or X-direction, coil 32 is cut
Magnetic induction line simultaneously drives mover assembly 3 to be vibrated in X direction, to realize the vibration of motor, and passes through regulating winding 32
The frequency and amplitude that current waveform can change the vibration of mover assembly 3 realize a variety of differences so as to generate different seismaesthesias
Touch feedback.The utility model by using bilayer arrangement 32 structure of multi-coil, and double-layer coil 32 and its top and
The permanent magnet 41 of lower section forms the magnetic circuit of diversification, so as to provide biggish driving force for the vibration of mover assembly 3, improves
The vibrating effect and performance of the motor, and the design of the double-deck connector 331 of FPC plate 33, it is easy to assembly, it is convenient for and upper and lower institute
Some coils 32 are welded to connect, and structure is more compact, reduces production cost, improves the benefit of enterprise.
Further, as shown in Figure 4, Figure 5, two layers of the double-deck connector 331 respectively includes matching with the second groove body 312
Interconnecting piece 3311 and positioning region 3312, interconnecting piece 3311 and positioning region 3312 are perpendicular, and two positioning regions 3312 are far from connection
The one end in portion 3311 is connected.Using Fig. 4 as reference, interconnecting piece 3311 and the T-shaped structure of 3312 shape of positioning region, using Fig. 5 as reference,
The double-deck connector 331 is in H-type structure.In assembling process, 3312 gluing of interconnecting piece 3311 and positioning region of the double-deck connector 331
It is stable, firm on the second groove body 312 of mass block 31, then each coil 32 is welded to connect with interconnecting piece 3311 again.
Further, as shown in Figures 1 to 3, mass block 31 is connected to including the first mass block 301 and respectively symmetrically the first matter
Second mass block 302 at 301 both ends of gauge block, the first mass block 301 and the second mass block 302 can pass through gluing or welding etc.
Mode is fixed together, and the first mass block 301 and two the second mass blocks 302 arrange in X direction, the thickness of the first mass block 301
The thickness less than the second mass block 302 is spent, stator module 4 is located between two the second mass blocks 302, two the first groove bodies 311
It is located on the first mass block 301 with notch 313, this spline structure is more compact, can reduce the volume of the motor.In mover assembly
In 3 vibration processes in X direction, stator module 4 is always positioned between two the second mass blocks 302, and such stator module 4 also can
Play the role of certain position limitation protection.
Further, it as shown in Fig. 2, Fig. 4, Fig. 5, is additionally provided on FPC plate 33 and the first bending part 332 and the second bending
Portion 333 is provided with the third groove body that the first bending part 332 and the second bending part 333 match on the second mass block 302
3021, bending part can be inclined-plane, be also possible to cambered surface, and such FPC plate 33 is more firm after connecting with 302 gluing of the second mass block
It leans on.
Further, as shown in Figure 1 and Figure 2, it is matched there are two being arranged in X direction in upper casing 1 with mover assembly 3
Limited block 6, limited block 6 are typically welded in upper casing 1, and mover assembly 3 is located between two limited blocks 6, i.e. mass block 31
Between two limited blocks 6.It in use, can be fine by limited block 6 when mover assembly 3 is vibrated in X direction
Ground limits the peak swing of mover assembly 3, prevents the mass block 31 of mover assembly 3 from touching spring 5, so that the motor be made more to pacify
It is complete reliable.Preferably, limited block 6 in several fonts and is fixed on the top in casing, and limited block 6 can be formed by metal plate bending,
It not only processes in this way, is easy to assembly, but also can reduce the weight of limited block 6.
Further, as shown in Figures 1 to 3, the both ends of mover assembly 3 in X direction are separately provided for protection spring 5
Foam block prevents mover assembly 3 in vibration processes in X direction, and mass block 31 is directly in contact with spring 5, so as to
Preferably protect spring 5.Foam block is usually adhesive in the second mass block 302 on one end of spring 5, the second mass block 302
It may be provided for the 5th groove body 3022 matched with foam block, one end of foam block is adhesive in the 5th groove body 3022.
Protection block 7 as protection spring 5 can also be the good polyurethane block of elasticity, rubber block etc., due to foam have elasticity is good,
It is light-weight, quickly pressure-sensitive fixation, it is easy to use, bending freely, reliable performance the advantages that, so the preferred foam block of protection block 7.
Further, as shown in Fig. 1~3, Fig. 6, the U-shaped structure of spring 5, usually by elastic metal sheet bending, processing
It forming, towards mover assembly 3, one side of spring 5 is welded to connect the opening of spring 5 with the second mass block 302 of mover assembly 3,
The another side of spring 5 and upper casing 1 are welded to connect, and form vibration section 8 between mover assembly 3 and spring 5, but also can be
The mounting portion 3023 matched with spring 5 is set on the second mass block 302, and mounting portion 3023 is usually located at the second mass block 302
End angle at and it is L-shaped, the connection of such spring 5 and the second mass block 302 is more firm, and structure is more compact.In mover group
In the vibration processes of part 3 in X direction, spring 5 can not only play the role of buffer protection to mover assembly 3, and to mover
Component 3 has certain elastic restoring force.Further, the width of spring 5 is gradually reduced from both ends to centre, such spring
The stress of 5 middle section is minimum, advantageously reduces the frequency of spring 5, so that the performance of spring 5 is improved, it can also be in spring 5
Bending part setting those widened sections 51 and more than two third bending parts 52, those widened sections 51 can guarantee the strong of the structure of spring 5
Degree, multiple third bending parts 52 improve the toughness of spring 5 to keep spring 5 not easy to break convenient for reducing the stress of spring 5.
In addition, stiffening piece 9 can also be set in the junction of spring 5 and the second mass block 302 of mover assembly 3, it in this way can be into one
Step improves the bonding strength of spring 5 and the second mass block 302, to improve the stability of vibration of mover assembly 3.
Above-described is only some embodiments of the utility model, it should be appreciated that the common skill of this field
For art personnel, without departing from the concept of the present invention, it can also be improved according to the above description or be handed over
It changes, and all these improvement and exchange all should belong to the protection scope of the appended claims for the utility model.
Claims (10)
1. a kind of linear vibration motor, which is characterized in that including upper casing (1) and lower cover (2), the upper casing (1) and institute
It states in lower cover (2) and is provided with mover assembly (3) and two stator modules (4), two stator modules (4) are symmetricly set on
It is fixedly connected above and below the mover assembly (3) and respectively with the upper casing (1) and the lower cover (2), each
The stator module (4) includes three or more the permanent magnets being arranged in X direction (41), the adjacent permanent magnet (41) edge
Z-direction magnetize and its magnetizing direction on the contrary, up and down the corresponding permanent magnet (41) magnetizing direction it is identical, the mover group
Part (3) includes mass block (31) and FPC plate (33), the upper surface and lower end surface of the mass block (31) be respectively set there are two with
On the coil (32) that arranges in X direction, the current direction of the adjacent coil (32) on the contrary, above and below the coil
(32) it is symmetrical arranged and current direction is identical, the quantity of the coil (32) two fewer than the quantity of the permanent magnet (41), outside
The corresponding permanent magnet (41) in the one end of the coil (32) of side far from the adjacent coil (32), adjacent is described
Coil (32) one end close to each other corresponds to the same permanent magnet (41), the FPC plate (33) have for all institutes
State the double-deck connector (331) of coil (32) welded connecting, the FPC plate (33) far from the double-deck connector (331) one
End can be connect with external circuit.
2. a kind of linear vibration motor according to claim 1, which is characterized in that the upper surface of the mass block (31) and
Lower end surface is separately provided for disposing the first groove body (311) of the coil (32), the bottom of two first groove bodies (311)
The second groove body (312) that face is respectively arranged with is arranged jagged (313) on the mass block (31), notch (313) connection
Two first groove bodies (311) and two second groove bodies (312), the bilayer connector (331) can lack along described
Mouth (313) enters and is placed in two second groove bodies (312).
3. a kind of linear vibration motor according to claim 2, which is characterized in that the two of the bilayer connector (331)
Layer respectively includes the interconnecting piece (3311) matched with second groove body (312) and positioning region (3312), the interconnecting piece
(3311) perpendicular with the positioning region (3312), the one end of two positioning regions (3312) far from the interconnecting piece (3311)
It is connected.
4. a kind of linear vibration motor according to claim 2, which is characterized in that the mass block (31) includes the first matter
Gauge block (301) and the second mass block (302) for being respectively symmetrically connected to the first mass block (301) both ends, first matter
Gauge block (301) and two second mass blocks (302) arrange in X direction, and the thickness of first mass block (301) is less than institute
The thickness of the second mass block (302) is stated, the stator module (4) is located between two second mass blocks (302), two institutes
It states the first groove body (311) and the notch (313) is located on first mass block (301).
5. a kind of linear vibration motor according to claim 4, which is characterized in that the FPC plate (33) has the first folding
Turn of bilge (332) and the second bending part (333) are provided with and the first bending part (332) and second on second mass block (302)
The third groove body (3021) that bending part (333) matches.
6. a kind of linear vibration motor according to claim 1, which is characterized in that set in X direction in the upper casing (1)
It sets there are two the limited block (6) matched with the mover assembly (3), the mover assembly (3) is located at two limited blocks
(6) between, the limited block (6) is in several fonts and the top that is fixed in the casing (1).
7. according to claim 1 to a kind of linear vibration motor described in any claim in 6, which is characterized in that described dynamic
The both ends of sub-component (3) in X direction pass through spring (5) and the upper casing (1) elastic connection, two springs (5) respectively
The mover assembly (3) is suspended in the upper casing (1), the spring (5) is U-shaped, the opening direction of the spring (5)
The mover assembly (3), one side of the spring (5) and the mover assembly (3) are welded to connect, the spring (5) it is another
Side and the upper casing (1) are welded to connect, and vibration section (8) is formed between the mover assembly (3) and the spring (5).
8. a kind of linear vibration motor according to claim 7, which is characterized in that the mover assembly (3) is in X direction
Both ends are respectively arranged with the protection block (7) matched with the spring (5).
9. a kind of linear vibration motor according to claim 7, which is characterized in that the width of the spring (5) is from both ends
It is gradually reduced to centre, the bending part of the spring (5) is provided with those widened sections (51) and more than two third bending parts (52).
10. a kind of linear vibration motor according to claim 7, which is characterized in that the spring (5) and the mover group
The junction of part (3) is provided with stiffening piece (9).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821888381.1U CN209516884U (en) | 2018-11-16 | 2018-11-16 | A kind of linear vibration motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821888381.1U CN209516884U (en) | 2018-11-16 | 2018-11-16 | A kind of linear vibration motor |
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| CN209516884U true CN209516884U (en) | 2019-10-18 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113410969A (en) * | 2021-07-19 | 2021-09-17 | 歌尔股份有限公司 | Vibration motor |
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2018
- 2018-11-16 CN CN201821888381.1U patent/CN209516884U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113410969A (en) * | 2021-07-19 | 2021-09-17 | 歌尔股份有限公司 | Vibration motor |
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