CN208285185U - A kind of linear vibration electric motor - Google Patents
A kind of linear vibration electric motor Download PDFInfo
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- CN208285185U CN208285185U CN201821087500.3U CN201821087500U CN208285185U CN 208285185 U CN208285185 U CN 208285185U CN 201821087500 U CN201821087500 U CN 201821087500U CN 208285185 U CN208285185 U CN 208285185U
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Abstract
The utility model relates to technical field of motors, and in particular to a kind of linear vibration electric motor.The linear vibration electric motor includes shell, and to be set to the shell intracorporal: vibration component is hung in the shell；A pair of of elastic parts, connects with the vibration component respectively and two sides that be divided into the vibration component opposite, the other end of the elastic parts are fixed on the inner wall of the shell；A pair of of driving assembly, set up the other two sides opposite in the vibration component separately, and the line of centres of a pair of of the driving component and the line of centres of a pair of elastic parts are mutually perpendicular to, the driving component includes coil and magnet, setting is cored in the coil, after powered up, the vibration component does linear reciprocating vibration between a pair of elastic parts under the magnetic field force effect that the interaction of the coil, the iron core and the magnet generates to the coil.The linear vibration electric motor of the utility model seismaesthesia in the case where electric current is constant is strong, using effect is good.
Description
Technical field
The utility model relates to technical field of motors, and in particular to a kind of linear vibration electric motor.
Background technique
In recent years, miniature horizontal linear vibration motor starts applied to wearable device, the fields such as mobile phone, and in client
Achieve good feedback.This motor is clear with vibration sense, vibration sense is strong, the quick response of multi-signal, scene tactile true to nature
The advantages that feedback.
Existing linear vibration electric motor generally comprises shell, coil, magnet and vibrator component, passes through the phase of coil and magnet
Linear oscillator is realized in the reciprocating motion for the magnetic field force drive vibrator component that interaction generates.But above-mentioned linear vibration electric motor exists
The seismaesthesia generated in the case that electric current is constant is weak, influences the using effect of motor.
Utility model content
Therefore, the technical problem to be solved by the present invention is to overcome linear vibration electric motor in the prior art in electric current
Seismaesthesia is weak in the case where constant, influences the technological deficiency of using effect, to provide one kind seismaesthesia in the case where electric current is constant
By force, the good linear vibration electric motor of using effect.
In order to solve the above technical problems, the technical solution adopted in the utility model is as follows:
A kind of linear vibration electric motor, including shell, and to be set to the shell intracorporal:
Vibration component is hung in the shell；
A pair of of elastic parts, connects with the vibration component and two sides that be divided into the vibration component opposite respectively, institute
The other end for stating elastic parts is fixed on the inner wall of the shell；
A pair of of driving assembly sets up the other two sides opposite in the vibration component separately, and in a pair of of the driving component
Heart line and the line of centres of a pair of elastic parts are mutually perpendicular to, and the driving component includes coil and magnet, the line
Setting is cored in circle, and after powered up, the vibration component is in the coil, the iron core and the magnet phase for the coil
Linear reciprocating vibration is done between a pair of elastic parts under the magnetic field force effect that interaction generates.
In above-mentioned linear vibration electric motor, the vibration component includes mass block, the coil, the iron core and the magnetic
Body is obliquely installed relative to the mass block, so that acting on of generating of the coil, the iron core and the magnet is described
Magnetic field force direction on mass block and the angle between the line of centres of a pair of elastic parts are acute angle or obtuse angle.
In above-mentioned linear vibration electric motor, the magnet is arranged in parallel with the coil, and the long axis of the magnet and one
The center of long axis and a pair of elastic parts to angle and the coil between the line of centres of the elastic parts
Angle between line is equal.
In above-mentioned linear vibration electric motor, the system that the elastic parts and the mass block are constituted has along a pair of bullet
Property the movement of component center line connecting direction first-order modal, and moved along the direction vertical with a pair of elastic parts line of centres
Another first-order modal；Mass block, coil and iron core can be along frequencies in two rank mode closer to that First-Order Mode of driving force frequency
The vibration of direction corresponding to state.
In above-mentioned linear vibration electric motor, a pair of of the driving component is symmetrical arranged relative to the both ends of the mass block, and
The current direction of the pole orientation of two magnets on the contrary, in two coils is consistent.
In above-mentioned linear vibration electric motor, the vibration component further includes the first installation that the mass block both ends are arranged in
Portion, the coil and the iron core are fixedly installed in first mounting portion.
In above-mentioned linear vibration electric motor, the vibration component further includes being arranged in first mounting portion close to the quality
The magnetic conductive board of block side.
In above-mentioned linear vibration electric motor, the shell includes shell ontology, top cover and two side covers, and the shell ontology is top
Be open the concave shell of setting with side, and the top cover is set at the top end opening of the shell ontology, two side covers
Two side openings of the shell ontology are set to, the shell ontology, the top cover and two side covers surround one jointly
The installation space of a sealing.
It further include being set on two side covers for installing the second peace of the magnet in above-mentioned linear vibration electric motor
Dress portion, two magnets are arranged with the corresponding coil and the iron core interval respectively.
In above-mentioned linear vibration electric motor, the elastic parts includes chip architecture of the spring and multiple blocks, the spring leaf knot
Structure includes at least three elastic slices, connection at an angle to each other between two adjacent elastic slices；The block is set on the elastic slice,
The chip architecture of the spring is contacted by the block with the mass block and/or the shell.
The technical solution of the utility model compared with prior art, has the advantages that
1. the linear vibration electric motor of the utility model, including shell, and to be set to the shell intracorporal: vibration component hangs
It is hung in the shell；A pair of of elastic parts connects with the vibration component respectively and to be divided into the vibration component opposite
Two sides, the other end of the elastic parts are fixed on the inner wall of the shell；A pair of of driving assembly sets up separately in the vibration group
The opposite other two sides of part, and the line of centres of a pair of of the driving component and the line of centres of a pair of elastic parts are mutual
Vertically, the driving component includes coil and magnet, and setting is cored in the coil, the coil after powered up, the vibration
Dynamic component is under the magnetic field force effect that the interaction of the coil, the iron core and the magnet generates in a pair of elasticity
Linear reciprocating vibration is done between component.The design for increasing iron core in coil can make the magnetic enhancement generated after coil energization,
Magnetic field force increases.The reason of coil magnetic increases mainly is magnetized by iron, the magnetism of iron itself is excited, in this way in electric current
In the case where constant the seismaesthesia of motor can it is stronger, vibrating effect is more preferable, the energy can be saved while reaching identical seismaesthesia
Use.
2. the linear vibration electric motor of the utility model, the vibration component includes mass block, the coil, the iron core with
And the magnet is obliquely installed relative to the mass block, so that the work that the coil, the iron core and the magnet generate
It with the angle between the line of centres in magnetic field force direction and a pair of elastic parts on the mass block is acute angle or blunt
Angle.Such design can be such that Lorentz force suffered by coil is decomposed into where the line of centres of a pair of elastic parts
First direction component, and perpendicular to the component of the second direction on center line connecting direction, i.e. Lorentz force suffered by coil
It can be decomposed into the component of two mutually perpendicular directions, to allow coil and the vibration component including mass block mutual
Vertical both direction vibration.
3. the linear vibration electric motor of the utility model, the magnet is arranged in parallel with the coil, and the length of the magnet
The long axis of angle and the coil between axis and the line of centres of a pair of elastic parts and a pair of elastic group
Angle between the line of centres of part is equal.The magnet is arranged in parallel with the coil can make magnetic field strength stronger, thus
Biggish driving force is provided for vibration component, makes it have stronger vibration sense；Described in long axis and a pair by the magnet
The line of centres of the long axis of angle and the coil between the line of centres of elastic parts and a pair of elastic parts it
Between angle it is equal so that the magnetic field acted on the mass block that the coil, the iron core and the magnet generate
Angle between power direction and the line of centres of a pair of elastic parts is that the design at acute angle or obtuse angle can be easier really
The set-up mode of alignment circle, iron core and magnet facilitates calculating and facilitates processing, the error phase generated between each component
To diminution.
4. the system that the linear vibration electric motor of the utility model, the elastic parts and the mass block are constituted has along one
To the first-order modal of elastic parts center line connecting direction movement, and along vertical with a pair of elastic parts line of centres
The another first-order modal of direction movement；Mass block, coil and iron core can be along frequencies in two rank mode closer to driving force frequency
The vibration of direction corresponding to that first-order modal.Driving force frequency refers to the output frequency of the driving device for coil power supply.Work as drive
Power frequency relative to second-order mode frequency closer to first step mode frequency when, first step mode can be excited, thus
Vibration component is set to be mainly reflected in that the direction along a pair of elastic parts line of centres moves；When driving force frequency is relative to
The frequency of first-order modal closer to second-order mode frequency when, second-order mode can be excited, to make the main body of vibration component
Now to move along the direction vertical with a pair of elastic parts center line connecting direction, pass through driving force frequency and its in this way
In a mode frequency it is close, vibration component can be made to switch between two mutually perpendicular direction of vibration.
5. the linear vibration electric motor of the utility model, a pair of of the driving component is symmetrical relative to the both ends of the mass block
Setting, and the pole orientation of two magnets is opposite, the current direction in two coils is consistent.Such setting can
The direction for the active force for being applied to two coils on mass block is identical.
6. the linear vibration electric motor of the utility model, the vibration component further includes that the mass block both ends are arranged in
One mounting portion, the coil and the iron core are fixedly installed in first mounting portion.The setting of first mounting portion, can
First to collide the shell of first mounting portion when linear vibration electric motor falls, to play the protection coil, the iron
The effect of core and other components.
7. the linear vibration electric motor of the utility model, the vibration component further includes that setting is close in first mounting portion
The magnetic conductive board of the mass block side.Magnetic conductive board can be such that the magnetic induction line of magnet is straightened, and make the vertical inlet-outlet line of more magnetic induction lines
Circle, to provide bigger driving force for vibration component.
8. the linear vibration electric motor of the utility model further includes being set on two side covers for installing the magnet
The second mounting portion, two magnets are arranged with the corresponding coil and the iron core interval respectively.Second installation
The setting in portion, can first collide the shell of second mounting portion when linear vibration electric motor falls, to play protection magnet
With the effect of other components.
9. the linear vibration electric motor of the utility model, the elastic parts includes chip architecture of the spring and multiple blocks, described
Chip architecture of the spring includes at least three elastic slices, connection at an angle to each other between two adjacent elastic slices；The block is set to institute
It states on elastic slice, the chip architecture of the spring is contacted by the block with the mass block and/or the shell.This spring leaf knot
Structure, the system constituted with mass block can have the mode of required both direction, so as to pass through driving force frequency
The frequency of rate and one of mode is close, switch vibration component between two mutually perpendicular direction of vibration.Meanwhile
The setting of block can make chip architecture of the spring carry out more firm contact with mass block and shell.
Detailed description of the invention
It, below will be right in order to illustrate more clearly of specific embodiment of the present invention or technical solution in the prior art
Specific embodiment or attached drawing needed to be used in the description of the prior art are briefly described, it should be apparent that, it is described below
In attached drawing be that some embodiments of the utility model are not paying creativeness for those of ordinary skill in the art
Under the premise of labour, it is also possible to obtain other drawings based on these drawings.
Fig. 1 is the explosive view of linear vibration electric motor provided by the utility model；
Fig. 2 is the stress analysis schematic diagram of the coil of linear vibration electric motor shown in FIG. 1；
Description of symbols:
1- shell ontology；2- top cover；3- coil；4- iron core；5- magnet；6- mass block；The first mounting portion of 7-；8- side cover；9-
Second mounting portion；10- magnetic conductive board；11- chip architecture of the spring；12- block；13- soft board.
Specific embodiment
The technical solution of the utility model is clearly and completely described below in conjunction with attached drawing, it is clear that described
Embodiment is the utility model a part of the embodiment, instead of all the embodiments.Based on the embodiments of the present invention, originally
Field those of ordinary skill every other embodiment obtained without making creative work belongs to practical
Novel protected range.
In addition, as long as technical characteristic involved in the utility model different embodiments disclosed below is each other
Not constituting conflict can be combined with each other.
It as depicted in figs. 1 and 2, is a kind of specific embodiment of linear vibration electric motor involved in the utility model, institute
Stating linear vibration electric motor includes shell, and is set to the intracorporal vibration component of the shell, a pair of of elastic parts, a pair of of driving assembly
And second mounting portion.
In this embodiment, the shell includes shell ontology 1, top cover 2 and two side covers 8, and the shell ontology 1 is top and side
The concave shell for the setting that is open is held, the top cover 2 is set at the top end opening of the shell ontology 1, and two side covers 8 are set
Two side openings of the shell ontology 1 are placed in, the shell ontology 1, the top cover 2 and two side covers 8 surround jointly
The installation space of one sealing.
In the present embodiment, the vibration component is hung in the shell by connecting with a pair of elastic parts；
The vibration component includes mass block 6, the first mounting portion 7 and magnetic conductive board 10.First mounting portion 7 is two, is symmetrically set
It sets at 6 both ends of mass block；The magnetic conductive board 10 is two, is arranged in first mounting portion 7 close to the mass block 6 one
Side, magnetic conductive board 10 can be such that the magnetic induction line of magnet 5 is straightened, and more magnetic induction lines is made vertically to pass in and out coil 3, to be vibration component
Bigger driving force is provided.
In this embodiment, second mounting portion 9 is two, is symmetrically disposed on two side covers 8, second peace
Dress portion 9 is fixedly connected on the side cover 8 towards on 6 side of mass block.
In the present embodiment, a pair of elastic parts connect with the vibration component respectively and is divided into the vibration group
The opposite two sides of part, the other end of the elastic parts are fixed on the inner wall of the shell.
The specific constructive form of the elastic parts can there are many, in the present embodiment, the elastic parts includes bullet
Reed structure 11 and multiple blocks 12, the chip architecture of the spring 11 include at least three elastic slices；The block 12 is set to the bullet
On piece, the chip architecture of the spring 11 are contacted by the block 12 with the mass block 6 and the shell.In this embodiment, one
Can satisfy to the relative position of the equal in magnitude of the chip architecture of the spring 11, and a pair of chip architecture of the spring 11 makes the matter
Gauge block 6 does linear reciprocal movement between two chip architecture of the spring 11, in the present embodiment, two chip architecture of the spring
11 relative position meets, and the line of centres of two chip architecture of the spring 11 is parallel with the cross section of mass block 6, specifically,
The center of two chip architecture of the spring 11 is conllinear with the center of the mass block 6.
Specifically, chip architecture of the spring 11 includes three elastic slices, connection at an angle to each other between two adjacent elastic slices, i.e.,
Spring leaf is in N-type.This chip architecture of the spring can have two rank mode, so as to by driving force frequency and wherein
The frequency of one mode is close, switch vibration component between two mutually perpendicular direction of vibration.In the present embodiment,
It is connected in a manner of integrally formed between three elastic slices.As disposable embodiment, chip architecture of the spring may include four
Or more than four elastic slices, when chip architecture of the spring includes four elastic slices, chip architecture of the spring is in W type.
Specifically, two groups of blocks 12 are provided on each chip architecture of the spring 11, wherein one group of block 12 be provided close to it is described
On the elastic slice of mass block 6, for contacting with the mass block 6, another group of block 12 is provided close on the elastic slice of the shell, is used
It is contacted in the shell；Chip architecture of the spring can be made to carry out more firm contact with mass block 6 and shell in this way.
In the present embodiment, a pair of of the driving component sets up the other two sides opposite in the vibration component separately, and a pair of
The driving component is symmetrical arranged relative to the both ends of the mass block 6, the line of centres and a pair of a pair of of the driving component
The line of centres of the elastic parts is mutually perpendicular to, and the driving component includes coil 3 and magnet 5, is provided in the coil 3
Iron core 4, iron core 4 are mounted in the hollow structure inside coil 3.
In order to make the movement of vibration component keep balance, Lorentz force direction suffered by two coils 3 is identical.Realize two
There are many identical modes in Lorentz force direction suffered by coil 3, in the present embodiment, the pole orientation of two magnets 5
On the contrary, the current direction in two coils 3 is consistent, i.e., one of them top of the magnet 5 in an inclined direction is N
Pole, bottom end are the pole S；Another top of magnet 5 in an inclined direction is the pole S, and bottom end is the pole N；In two coils 3
Current direction it is consistent.
Two magnets 5 are arranged with the corresponding coil 3 and the interval of the iron core 4 respectively, and the coil is being powered
Afterwards, the vibration component the coil 3, the iron core 4 and the magnet 5 interaction generate magnetic field force effect under
Linear reciprocating vibration is done between a pair of elastic parts.
The first installation cavity being adapted to the coil 3 and the iron core 4, the line are provided in first mounting portion 7
Circle 3 and the insertion of the iron core 4 are installed in first installation cavity；Since the coil 3 and the insertion of the iron core 4 are installed on institute
It states in the first installation cavity, coil 3 can be effectively prevented and deviate from from the first installation cavity, keep the installation of coil 3 more firm；Meanwhile
The setting of first mounting portion 7 can first collide the shell of first mounting portion 7 when linear vibration electric motor falls, from
And play the role of the protection coil 3, the iron core 4 and other components.
Second mounting portion 9 is equipped with the second installation cavity being adapted to the magnet 5, and the insertion of magnet 5 is installed on
In second installation cavity.Since the insertion of magnet 5 is installed in second installation cavity, magnet 5 from second can be effectively prevented
Deviate from installation cavity, keep the installation of magnet 5 more firm, to improve the stability of vibration component vibration；Meanwhile described second
The setting of mounting portion 9, can first collide the shell of second mounting portion 9 when linear vibration electric motor falls, to play guarantor
Protect the effect of magnet 5 and other components.
In order to keep magnetic field strength stronger, so that bigger driving force is provided for vibration component, the magnetic in the present embodiment
Body 5 is Halbach structure magnetic steel component, and the strong of the magnetic steel component is arranged facing towards the coil 3.In the present embodiment, magnetic
Steel component is three magnet steel composition.As disposable embodiment, magnetic steel component may be that five magnet steel are constituted.
In the present embodiment, the coil 3, the iron core 4 and the magnet 5 are set relative to the mass block 6 inclination
It sets, so that the magnetic field force direction acted on the mass block 6 that the coil 3, the iron core 4 and the magnet 5 generate
Angle between the line of centres of a pair of elastic parts is acute angle or obtuse angle.
As depicted in figs. 1 and 2, the magnet 5 is arranged in parallel with the coil 3, and the magnet 5 and the coil 3 are
For cuboid, the magnet 5 is long axis, the long axis and one of the magnet 5 with the central axes of the coil 3 along its length
The center of long axis and a pair of elastic parts to angle and the coil 3 between the line of centres of the elastic parts
Angle between line is equal, i.e., the long axis of the long axis and the coil 3 of the described magnet 5 extends in the same direction, so that
The magnetic field force direction acted on the mass block 6 and a pair of of institute that the coil 3, the iron core 4 and the magnet 5 generate
Stating the angle between the line of centres of elastic parts is acute angle or obtuse angle.
The system that the elastic parts and the mass block 6 are constituted has along a pair of elastic parts center line connecting direction
The first-order modal of movement, and the another first-order modal moved along the direction vertical with a pair of elastic parts line of centres；Quality
Block 6, coil 3 and iron core 4 can be along directions corresponding to that first-order modal of frequency closer to driving force frequency in two rank mode
Vibration.Wherein, driving force frequency refers to the output frequency for the driving device powered for coil 3.When driving force frequency is relative to
The frequency of second-order modal closer to first step mode frequency when, first step mode can be excited, to make the main body of vibration component
It is now to be moved along the direction of the elastic parts line of centres；When driving force frequency is closer relative to the frequency of first step mode
When the frequency of second-order mode, second-order mode can be excited, so that vibration component be made to be mainly reflected in edge and a pair of elasticity
The vertical direction movement of the component line of centres, it is close by the frequency of driving force frequency and one of mode in this way, i.e.,
Vibration component can be made to switch between two mutually perpendicular direction of vibration.
In fig. 1 and 2, X-direction is on the length extending direction of mass block 6, and Y-direction is in two elastic parts
On the line of centres, Z-direction is the direction both perpendicular to Y-direction and X-direction.By make the coil 3, the iron core 4 and
The line of centres in the magnetic field force direction acted on the mass block 6 and a pair of elastic parts that the magnet 5 generates it
Between angle be acute angle or obtuse angle, Lorentz force suffered by coil 3 can be made to be decomposed into consistent with the center line connecting direction
First direction (i.e. Y-direction in Fig. 1) component, and the second direction (i.e. in Fig. 1 perpendicular to the center line connecting direction
Z-direction) component, i.e., Lorentz force suffered by coil 3 can be decomposed into the component of two mutually perpendicular directions, to make to wrap
The vibration component for including coil 3 and mass block 6 can be vibrated in two mutually perpendicular directions.
Obviously, the above embodiments are merely examples for clarifying the description, and does not limit the embodiments.It is right
For those of ordinary skill in the art, can also make on the basis of the above description it is other it is various forms of variation or
It changes.There is no necessity and possibility to exhaust all the enbodiments.And it is extended from this it is obvious variation or
It changes among the protection scope created still in the utility model.
Claims (10)
1. a kind of linear vibration electric motor, which is characterized in that including shell, and to be set to the shell intracorporal:
Vibration component is hung in the shell；
A pair of of elastic parts, connects with the vibration component and two sides that be divided into the vibration component opposite respectively, the bullet
The other end of property component is fixed on the inner wall of the shell；
A pair of of driving assembly sets up the other two sides opposite in the vibration component separately, and the center of a pair of of the driving component connects
The line of centres of line and a pair of elastic parts is mutually perpendicular to, and the driving component includes coil (3) and magnet (5), described
Cored (4) are set in coil (3), after powered up, the vibration component is in the coil (3), the iron core (4) for the coil
And linearly reciprocal shake is done under the magnetic field force effect of magnet (5) the interaction generation between a pair of elastic parts
It is dynamic.
2. linear vibration electric motor according to claim 1, which is characterized in that the vibration component includes mass block (6), institute
It states coil (3), the iron core (4) and the magnet (5) to be obliquely installed relative to the mass block (6), so that the coil
(3), the magnetic field force direction acted on the mass block (6) and a pair of of institute that the iron core (4) and the magnet (5) generate
Stating the angle between the line of centres of elastic parts is acute angle or obtuse angle.
3. linear vibration electric motor according to claim 2, which is characterized in that the magnet (5) is parallel with the coil (3)
Setting, and angle and the coil (3) between the long axis of the magnet (5) and the line of centres of a pair of elastic parts
Long axis it is equal with the angle between the line of centres of a pair of elastic parts.
4. linear vibration electric motor according to claim 2, which is characterized in that the elastic parts and the mass block (6)
The system of composition has the first-order modal moved along a pair of elastic parts center line connecting direction, and edge and a pair of elasticity
The another first-order modal of the vertical direction movement of the component line of centres；Mass block (6), coil (3) and iron core (4) can be along two rank moulds
Direction corresponding to that first-order modal of frequency closer to driving force frequency vibrates in state.
5. linear vibration electric motor according to claim 2, which is characterized in that a pair of of the driving component is relative to the matter
The both ends of gauge block (6) are symmetrical arranged, and the pole orientation of two magnets (5) is opposite, the electric current in two coils (3)
Direction is consistent.
6. linear vibration electric motor according to claim 5, which is characterized in that the vibration component further includes being arranged described
First mounting portion (7) at mass block (6) both ends, the coil (3) and the iron core (4) are fixedly installed on first mounting portion
(7) in.
7. linear vibration electric motor according to claim 6, which is characterized in that the vibration component further includes being arranged described
Magnetic conductive board (10) of first mounting portion (7) close to the mass block (6) side.
8. linear vibration electric motor according to claim 1, which is characterized in that the shell includes shell ontology (1), top cover
(2) and two side covers (8), the shell ontology (1) is that top and side are open the concave shell of setting, and the top cover (2) sets
It is placed at the top end opening of the shell ontology (1), two sides that two side covers (8) are set to the shell ontology (1) are opened
At mouthful, the shell ontology (1), the top cover (2) and two side covers (8) surround the installation space of a sealing jointly.
9. linear vibration electric motor according to claim 8, which is characterized in that further include being set to two side covers (8)
On for installing the second mounting portion (9) of the magnet (5), two magnets (5) respectively with the corresponding coil (3) and
Iron core (4) interval setting.
10. linear vibration electric motor according to claim 2, which is characterized in that the elastic parts includes chip architecture of the spring
(11) and multiple blocks (12), the chip architecture of the spring (11) includes at least three elastic slices, between two adjacent elastic slices
Connection at an angle to each other；The block (12) be set to the elastic slice on, the chip architecture of the spring (11) by the block (12) with
The mass block (6) and/or shell contact.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821087500.3U CN208285185U (en) | 2018-07-10 | 2018-07-10 | A kind of linear vibration electric motor |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821087500.3U CN208285185U (en) | 2018-07-10 | 2018-07-10 | A kind of linear vibration electric motor |
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| CN208285185U true CN208285185U (en) | 2018-12-25 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022062038A1 (en) * | 2020-09-28 | 2022-03-31 | 瑞声声学科技(深圳)有限公司 | Linear motor |
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2018
- 2018-07-10 CN CN201821087500.3U patent/CN208285185U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022062038A1 (en) * | 2020-09-28 | 2022-03-31 | 瑞声声学科技(深圳)有限公司 | Linear motor |
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