CN110445341A - Linear vibration electric motor - Google Patents
Linear vibration electric motor Download PDFInfo
- Publication number
- CN110445341A CN110445341A CN201910882181.8A CN201910882181A CN110445341A CN 110445341 A CN110445341 A CN 110445341A CN 201910882181 A CN201910882181 A CN 201910882181A CN 110445341 A CN110445341 A CN 110445341A
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- China
- Prior art keywords
- shell
- elastic slice
- electric motor
- coil
- linear vibration
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- 238000005452 bending Methods 0.000 claims abstract description 54
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 29
- 239000010959 steel Substances 0.000 claims abstract description 29
- 238000003466 welding Methods 0.000 claims description 15
- 238000009413 insulation Methods 0.000 claims description 14
- 239000012814 acoustic material Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 description 6
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000003801 milling Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K1/00—Details of the magnetic circuit
- H02K1/06—Details of the magnetic circuit characterised by the shape, form or construction
- H02K1/34—Reciprocating, oscillating or vibrating parts of the magnetic circuit
-
- 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
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/24—Casings; Enclosures; Supports specially adapted for suppression or reduction of noise or vibrations
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
The invention discloses a kind of linear vibration electric motors, including shell, stationary part and subpart.Stationary part is fixedly installed in shell and including coil, and subpart includes mass block, magnet and elastic slice, and magnet is installed in mass block and corresponding with coil, and mass block is movably connected inside the shell by elastic slice.Wherein, elastic slice includes elastic slice main body and the first bending part and the second bending part that the both ends from elastic slice main body are integrally stretched out to same direction, and the length difference and magnet of the first bending part and the second bending part are multistage magnet steel.The present invention replaces muti-piece magnet steel with multistage magnet steel, i.e., can provide driving force using one block of the two poles of the earth magnet steel for vibrational system, reduce assembly difficulty while reducing the quantity of components.
Description
Technical field
The present invention relates to motor fields, and in particular to a kind of linear vibration electric motor.
Background technique
With the development of communication technology, portable electronic product, such as mobile phone, handheld device or palm multimedia recreation
Equipment etc. enters people's lives.In these portable electronic products, generally system feedback can be done with vibrating motor,
Such as incoming call prompting, vibrational feedback of game machine of mobile phone etc..However, with the lightening development trend of electronic product, in
The various components in portion also need to adapt to this trend, and vibrating motor is no exception.
The magnetic circuit system majority of linear electric machine uses multipath magnetic circuit structure at present, since magnet steel is small and leads to magnetic with polarized
Steel is difficult to assemble, and needs to consume a large amount of man power and material, how effectively to solve the problem that assembly problem is this field.
Summary of the invention
The object of the present invention is to provide a kind of linear vibration electric motors, to solve above-mentioned problems of the prior art.
To solve the above-mentioned problems, according to an aspect of the invention, there is provided a kind of 1 linear vibration electric motor, the line
Property vibrating motor include shell, stationary part and subpart, the stationary part be fixedly installed in the shell and including
Coil, the subpart include mass block, magnet and elastic slice, the magnet be installed in institute's mass block and with the coil pair
It answers, the mass block is movably connected in the shell by the elastic slice, wherein elastic slice includes elastic slice main body and from described
The first bending part and the second bending part that the both ends one of elastic slice main body is stretched out to same direction, first bending part and described
The length difference of second bending part and the magnet are multistage magnet steel.
In one embodiment, first bending part of the elastic slice is connected to the outer casing inner wall of the shell side
On, second bending part of the elastic slice is connected to the mass block side opposite with the other side of the shell of the mass block
Portion, and the end of first bending part and second bending part are parallel to each other on the length direction along the shell.
In one embodiment, the linear vibration electric motor further includes block, and the block is set to the two of the shell
The width of the elastic slice main body of end and institute's elastic slice is gradually reduced from both ends to middle part, is formed with the middle part in the elastic slice main body
Block relief portion.
In one embodiment, the elastic slice main body and first bending part or second bending part form obtuse angle；
In one embodiment, the end of first bending part and second bending part has on the length direction of the shell
Identical coordinate position.
In one embodiment, the middle part of the mass block forms the opening for accommodating magnet and coil, the mass block
Both ends form the sound insulation groove for installing acoustic material；
In one embodiment, the sound insulation groove is arranged along the thickness direction of the mass block and forms a semicolumn
Connected in star；
In one embodiment, the sound insulation groove of one end is arranged close to the rear surface of mass block, the sound insulation groove of the other end
Front surface close to mass block is arranged；
In one embodiment, coil recess is provided with above the opening, it is recessed that the coil is contained in the coil
In slot, and the size of the coil recess is significantly greater than the size of the coil, so that coil can be in the coil recess
Activity.
In one embodiment, the linear vibration electric motor further includes machine core, the mass block towards the shell
Pole piece groove is provided on surface, the pole piece is installed in the pole piece groove.
In one embodiment, the linear vibration electric motor further includes cover board, and the stationary part further includes bottom circuit
Plate, the base circuit board are fixed on the cover board, and the surface of the base circuit board is equipped with the inside utilized for coil
Coil spot welding pad；
In one embodiment, the base circuit board includes first part and second part, the face of the first part
Product is greater than the area of the second part, and the first part is equipped with Inside coil spot welding pad, on the second part
Equipped with external pads；
In one embodiment, the base circuit board is equipped with two pieces of external pads and two pieces of Inside coil spot welding welderings
Disk, one of Inside coil spot welding pad are integrally formed with external pads and pass through connection strap and connect；
In one embodiment, it is diagonal to be located at being located at for the first part for two pieces of Inside coils spot welding pad
Two corners and two pieces of external pads on line are arranged side by side on the second part.
In one embodiment, the linear vibration electric motor further includes muti-piece baffle, and the elastic slice is solid by the baffle
It is scheduled on the side wall of the mass block and the shell.
In one embodiment, the linear vibration electric motor further includes block and cover board, and the block is set to described outer
Shell is interior and is arranged in the both ends of the shell, and the cover board and the shell cooperate the subpart and stationary part encapsulation
In in the space that the cover board and shell limit；
In one embodiment, the block is close to the both ends inner wall setting of shell, the elastic slice main body arrangement of the elastic slice
Between the mass block and block, when the subpart moves in the shell, the block can prevent quality
Block and elastic slice directly hit the inner wall of the shell.
In one embodiment, the magnet is two-stage magnet steel, and the left side upper surface of the two-stage magnet steel is the pole N, right side
Upper surface is the pole S, and left side lower surface is the pole S, and right side lower surface is the pole N.
The multistage magnet steel of the present invention replaces muti-piece magnet steel in the prior art, i.e., can be vibration using one block of the two poles of the earth magnet steel
Dynamic system provides driving force, reduces assembly difficulty while reducing the quantity of components.In addition, provided by the invention linear
Vibrating motor, by dexterously elastic slice being utilized to connect the front and back inner wall of mass block and shell, and both ends inside the housing are tight
It pastes end wall and block is set, by the way that block to be set between shell and elastic slice, play the role of protecting outer casing inner wall and mass block,
And in subpart motion process, moves more stable and set noise can be reduced.
Detailed description of the invention
Fig. 1 is the stereogram exploded view of the linear vibration electric motor of one embodiment of the invention；
Fig. 2 is the main view of the linear vibration electric motor of Fig. 1；
Fig. 3 is the cross-sectional view of the linear vibration electric motor of Fig. 1；
Fig. 4 is the top view of base circuit board；
Fig. 5 is the perspective view of mass block；
Fig. 6 is the top view of the mass block of Fig. 5；
Fig. 7 is the bottom view of the mass block of Fig. 5；
Fig. 8 is the perspective view of the elastic slice of one embodiment of the invention；
Fig. 9 is the main view of the elastic slice of Fig. 8；
Figure 10 is the left view of the elastic slice of Fig. 8；
Figure 11 is the magnet of one embodiment of the invention and the stereoscopic schematic diagram of fitting coils.
Specific embodiment
Presently preferred embodiments of the present invention is described in detail below with reference to attached drawing, it is of the invention to be clearer to understand
Objects, features and advantages.It should be understood that embodiment shown in the drawings does not limit the scope of the present invention, and only it is
Illustrate the connotation of technical solution of the present invention.
In the following description, elaborate certain details to provide for the purpose for illustrating various disclosed embodiments
To the thorough understanding of various open embodiments.But it one skilled in the relevant art will recognize that can be in without these details
One or more details the case where get off to practice embodiment.Under other circumstances, well known device associated with this application,
Structure and technology may not be illustrated in detail or describe to avoid unnecessarily obscuring the description of embodiment.
Expression is in conjunction with the embodiments described to be referred to " one embodiment " or " embodiment " throughout the specification
Certain features, structure or feature are included at least one embodiment.Therefore, in each position of the whole instruction " at one
In embodiment " or " in an embodiment " in appearance without all referring to identical embodiment.In addition, certain features, structure or feature
It can combine in any way in one or more embodiments.
In the following description, structure and working method of the invention in order to clearly demonstrate, will be by many Directional words
It is described, but should be by the words such as "front", "rear", "left", "right", "outside", "inner", " outside ", " inside ", "upper", "lower"
Language understands for convenience of term, and is not construed as word of limitation.
Linear vibration electric motor of the invention generally comprises shell, stationary part and subpart, the fixed peace of stationary part
Loaded in shell and including coil, subpart includes mass block, magnet and elastic slice, and magnet is installed in mass block and and coil
Mass block is movably connected inside the shell by corresponding matching, elastic slice, wherein the magnet is multistage magnet steel.The present invention is multistage
Magnet steel replaces muti-piece magnet steel in the prior art, i.e., can provide driving force using one block of the two poles of the earth magnet steel for vibrational system, subtract
Assembly difficulty is reduced while having lacked the quantity of components.
In one embodiment, the elastic slice of subpart includes elastic slice main body and the both ends from elastic slice main body integrally to same
The length of the first bending part and the second bending part that direction is stretched out, first bending part and second bending part is different.So
Setting can not influence the running quality of motor also while for necessary part slot milling.
The embodiment of the present invention is described in detail with reference to the accompanying drawings.
Fig. 1 is the stereogram exploded view of the linear vibration electric motor 100 of one embodiment of the invention, and Fig. 2 is the linear oscillator of Fig. 1
The main view of motor 100, Fig. 3 are the cross-sectional views of the linear vibration electric motor 100 of Fig. 1.As shown in Figure 1-3, linear vibration electric motor 100
Including shell 10, stationary part 30 and subpart 20, stationary part 30 is fixedly installed in shell 10 and including coil 31, moves
Subdivision 20 includes mass block 21, magnet 23 and elastic slice 22, magnet 23 be installed in mass block 21 and with 31 corresponding matching of coil,
Mass block 21 is movably connected in shell 10 by elastic slice 22, wherein and magnet 23 is multistage magnet steel, such as second level magnet steel, under
Text also will be further described.
Fig. 4 is the top view of base circuit board 32.As shown in Figure 4 and Fig. 1 is combined, stationary part 30 further includes bottom circuit
Plate 32, base circuit board 32 for example can be FPC plate (flexible circuit board), and backplane circuit plate 32 includes first part 321 and the
Two parts 322, the area of first part 321 is greater than the area of second part 322, and first part 321 is equipped with Inside coil
Spot welding pad 323, second part 322 are equipped with external pads 324.In the present embodiment, base circuit board 32 is equipped with two pieces
External pads and two pieces of Inside coil spot welding pads, one of Inside coil spot welding pad 323 and 234 1 bodily form of external pads
At and connected by connection strap 325, wherein two pieces of Inside coil spot welding pads 323 are located at being located at pair for first part 321
Two corners on linea angulata, two pieces of external pads 324 are arranged side by side on second part 322.Base circuit board 32 passes through inside
Coil spot welding pad 323 is electrically connected with coil 31, and is connected to external circuit by external pads.
Fig. 5 is the perspective view of mass block 21, and Fig. 6 is the top view of the mass block 21 of Fig. 5, and Fig. 7 is the mass block 21 of Fig. 5
Bottom view.As illustrated in figs. 5-7, the middle part of mass block 21 forms the opening 211 for accommodating magnet 23 and coil 31, and both ends form and are used for
The sound insulation groove 2121 of acoustic material is installed.Specifically, sound insulation groove 2121 is arranged and is formed along the thickness direction of mass block 21
One semi-cylindrical recesses.Preferably, (such as the right end sound insulation of mass block 21 shown in Fig. 5-6 of sound insulation groove 2121 of one end
Groove) close to rear surface (surface shown in fig. 5 positioned at the top) setting of mass block 21, the sound insulation groove 2121 of the other end
(such as left end sound insulation groove of mass block 21 shown in Fig. 5-6) is (shown in fig. 5 to be located at bottom close to the front surface of mass block 21
Surface) setting.The top of opening 211 is provided with coil recess 2111, and coil 31 is contained in coil recess 2111, and coil
The size of groove 2111 is significantly greater than the size of coil 31, so that coil 31 can be movable in coil recess 2111.Specifically,
In the present invention, since coil 2111 is fixed on shell, under the action of the elastic force of magnetic field force and elastic slice 31, mover portion
20 are divided to carry out left and right reciprocating linear motion relative to coil 31.
Referring to Fig. 5-7 and Fig. 2-3 is combined, the bottom of the opening 211 of mass block 21 is additionally provided with pole piece mounting groove 241.Mover
Part 20 further includes pole piece 24, and pole piece 24 is set in pole piece mounting groove 241 and face magnet 23 is arranged, and reinforces magnetic field to play
Effect.
Fig. 8 is the perspective view of the elastic slice 22 of one embodiment of the invention, and Fig. 9 is the main view of the elastic slice 22 of Fig. 8, Tu10Shi
The left view of the elastic slice 22 of Fig. 8.As seen in figs. 8-10, the subpart 20 in this example includes two pieces of elastic slices 22, two pieces of elastic slices
22 are arranged in the left and right ends of mass block 21.Specifically, elastic slice 22 includes elastic slice main body 221 and from elastic slice main body 221
The first bending part 222 and the second bending part 223 that both ends one is stretched out to same direction, the first bending part 222 and the second bending
The length in portion 223 is different.
Specifically, in the present embodiment, the length of the first bending part 222 is shorter, and the length of the second bending part 223 is longer,
Angle formed by elastic slice main body 221 and the first bending part 222 is obtuse angle, and elastic slice main body 221 is with angle formed by the second bending part 223
Acute angle.Preferably, the first bending part 222 and the second bending part 223 are parallel to each other.Due to elastic slice main body 221 and the second bending part
223 be not that the length of vertical relation and the second bending part 223 and the first bending part 222 differs, the first bending part 222
End and the end of the second bending part 223 are being mutually aligned, i.e., when elastic slice 22 is installed in shell 10, the first bending part 222
End and the end of the second bending part 223 be at the equal length of shell 10.
With continued reference to Figure 10, the width of the elastic slice main body 221 of elastic slice 22 is gradually reduced from both ends to middle part, in elastic slice master
The middle part of body 221 forms block relief portion 224 and will be further described further below with accommodating block.
Referring back to Fig. 1-2, the subpart 20 of linear vibration electric motor 100 further includes baffle 25, and the first of elastic slice 22 is curved
Folding part 222 and the second bending part 223 are fixed to the rear side of mass block 21 and the front side wall of shell 10 by baffle respectively
On.First bending part 222 of the rear portion fixation spring tab 22 of the left end of mass block 21 shown in Fig. 2, in the front of 10 left end of shell
Fix the second bending part 223 on side wall, and the first bending part 222 is fixed in the right end front of mass block 21, after 10 right end of shell
Second bending part 223 of fixation spring tab 22 on square inner sidewall.When passing through electric current in coil 31, the magnetic field caused by magnet 23
In effect by Lorentz force, to force mass block that the subparts such as magnet is driven to carry out side-to-side movement, in motion process
In, elastic slice 22 limits the motion range of subpart 20.Due to the connection of elastic slice 22 and the inner wall of mass block 21 and shell 10
Point is positioned at the both ends of mass block, rather than the both ends positioned at mass block current as this field, so that motor is in the process of running
It runs smoothly, noise is small.
Figure 11 is the magnet 23 of one embodiment of the invention and the stereoscopic schematic diagram that coil 31 cooperates.As shown in figure 11, magnetic
Body 23 is two-stage magnet steel, and the left side upper surface of magnet steel is the pole N, and right side upper surface is the pole S, and left side lower surface is the pole S, right side following table
Face is the pole N.Compared with muti-piece magnet steel, two-stage magnet steel can provide driving force using one block of the two poles of the earth magnet steel for vibrational system, subtract
Assembly difficulty is reduced while having lacked the quantity of components.Three pole magnetic circuit linear electric machines, quadrupole magnetic circuit linear electric machine and the two poles of the earth
Magnetic circuit linear electric machine principle is identical, and details are not described herein.
In one embodiment, linear vibration electric motor 100 further includes block 50 and cover board 40, and block 50 is set to shell 10
Both ends that are interior and being arranged in shell 10, cover board 40 and shell 10, which cooperate, is packaged in lid for entire subpart 20 and stationary part 30
In the space that plate 40 and shell 10 limit.Referring to Fig. 3, block 50 is close to the both ends inner wall setting of shell 10, the elastic slice of elastic slice 20
Main body 21 is arranged between mass block 21 and block 50, and when subpart 21 moves inside the shell, block 50 can prevent matter
Gauge block 21 and elastic slice 22 directly hit the inner wall of shell 10.
By above embodiment as can be seen that the present invention replaces muti-piece magnet steel in the prior art with multistage magnet steel, i.e.,
Driving force can be provided for vibrational system using one block of the two poles of the earth magnet steel, assembly is reduced while reducing the quantity of components
Difficulty.
In addition, linear vibration electric motor provided by the invention, by dexterously utilizing elastic slice by the front and back of mass block and shell
Inner wall connection, and both ends inside the housing are close to end wall and block are arranged, and by the way that block to be set between shell and elastic slice, rise
To the effect of protection outer casing inner wall and mass block, and in subpart motion process, moves more stable and machine can be reduced
Noise.
Presently preferred embodiments of the present invention has already been described in detail above, it is understood that having read of the invention above-mentioned say
After awarding content, those skilled in the art can make various modifications or changes to the present invention.Such equivalent forms equally fall within this
Apply for the appended claims limited range.
Claims (10)
1. a kind of linear vibration electric motor, which is characterized in that the linear vibration electric motor includes shell, stationary part and mover portion
Point, the stationary part is fixedly installed in the shell and including coil, and the subpart includes mass block, magnet and bullet
Piece, the magnet are installed in the mass block and corresponding with the coil, and the elastic slice movably connects the mass block
It connects in the shell, wherein the elastic slice includes elastic slice main body and the both ends from the elastic slice main body integrally to same direction
The length of the first bending part and the second bending part stretched out, first bending part and second bending part is different, Yi Jisuo
Magnet is stated as multistage magnet steel.
2. linear vibration electric motor according to claim 1, which is characterized in that first bending part of the elastic slice connects
On the outer casing inner wall of the shell side, second bending part of the elastic slice be connected to the mass block with it is described outer
The opposite mass block side in the other side of shell, and the end of first bending part and second bending part are along the shell
Length direction on be parallel to each other.
3. linear vibration electric motor according to claim 1, which is characterized in that the linear vibration electric motor further includes block,
The block is set to the both ends of the shell and the width of the elastic slice main body of institute's elastic slice is gradually reduced from both ends to middle part,
To form block relief portion at the middle part of the elastic slice main body.
4. linear vibration electric motor according to claim 1, which is characterized in that the elastic slice main body and first bending part
Or second bending part forms obtuse angle；In one embodiment, the end of first bending part and second bending part
The coordinate position having the same on the length direction of the shell.
5. linear vibration electric motor according to claim 1, which is characterized in that the middle part of the mass block, which is formed, accommodates magnet
With the opening of coil, the both ends of the mass block form the sound insulation groove for installing acoustic material；
In one embodiment, the sound insulation groove is arranged along the thickness direction of the mass block and to form a semi-cylindrical recessed
Slot；
In one embodiment, the sound insulation groove of one end is arranged close to the rear surface of mass block, and the sound insulation groove of the other end is close
The front surface of mass block is arranged；
In one embodiment, coil recess is provided with above the opening, the coil is contained in the coil recess,
And the size of the coil recess is significantly greater than the size of the coil, so that coil can be movable in the coil recess.
6. linear vibration electric motor according to claim 1, which is characterized in that the linear vibration electric motor further includes machine core,
Pole piece groove is provided on the surface towards the shell of the mass block, the pole piece is installed in the pole piece groove.
7. linear vibration electric motor according to claim 1, which is characterized in that the linear vibration electric motor further includes cover board,
The stationary part further includes base circuit board, and the base circuit board is fixed on the cover board, and the base circuit board
Surface be equipped with the Inside coil spot welding pad that utilizes for coil；
In one embodiment, the base circuit board includes first part and second part, and the area of the first part is big
In the area of the second part, and the first part is equipped with Inside coil spot welding pad, and the second part is equipped with
External pads；
In one embodiment, the base circuit board is equipped with two pieces of external pads and two pieces of Inside coil spot welding pads,
In one piece of Inside coil spot welding pad be integrally formed with external pads and pass through connection strap and connect；
In one embodiment, two pieces of Inside coils spot welding pad be located at the first part be located at diagonal line on
Two corners and two pieces of external pads be arranged side by side on the second part.
8. linear vibration electric motor according to claim 1, which is characterized in that the linear vibration electric motor further includes muti-piece gear
Piece, the elastic slice are fixed on the side wall of the mass block and the shell by the baffle.
9. linear vibration electric motor according to claim 1, which is characterized in that the linear vibration electric motor further include block and
Cover board, the block are set in the shell and are arranged in the both ends of the shell, and the cover board and shell cooperation will
The subpart and stationary part are packaged in the space that the cover board and shell limit；
In one embodiment, the block is close to the both ends inner wall setting of shell, and the elastic slice main body of the elastic slice is arranged in institute
State between mass block and block, when the subpart moves in the shell, the block can prevent mass block and
Elastic slice directly hits the inner wall of the shell.
10. linear vibration electric motor according to claim 1, which is characterized in that the magnet is two-stage magnet steel, the two-stage
The left side upper surface of magnet steel is the pole N, and right side upper surface is the pole S, and left side lower surface is the pole S, and right side lower surface is the pole N.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910882181.8A CN110445341A (en) | 2019-09-18 | 2019-09-18 | Linear vibration electric motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910882181.8A CN110445341A (en) | 2019-09-18 | 2019-09-18 | Linear vibration electric motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110445341A true CN110445341A (en) | 2019-11-12 |
Family
ID=68440454
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910882181.8A Pending CN110445341A (en) | 2019-09-18 | 2019-09-18 | Linear vibration electric motor |
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| Country | Link |
|---|---|
| CN (1) | CN110445341A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111404347A (en) * | 2020-04-20 | 2020-07-10 | 瑞声科技（南京）有限公司 | Oblique vibration linear motor and electronic equipment using same |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104979994A (en) * | 2015-07-08 | 2015-10-14 | 瑞声光电科技(常州)有限公司 | Vibration motor |
| CN208285092U (en) * | 2018-05-25 | 2018-12-25 | 马鞍山市鑫洋永磁有限责任公司 | A kind of washing machine plane rotor and its multistage magnet steel |
| CN210297517U (en) * | 2019-09-18 | 2020-04-10 | 河南皓泽电子股份有限公司 | Linear vibration motor |
-
2019
- 2019-09-18 CN CN201910882181.8A patent/CN110445341A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104979994A (en) * | 2015-07-08 | 2015-10-14 | 瑞声光电科技(常州)有限公司 | Vibration motor |
| CN208285092U (en) * | 2018-05-25 | 2018-12-25 | 马鞍山市鑫洋永磁有限责任公司 | A kind of washing machine plane rotor and its multistage magnet steel |
| CN210297517U (en) * | 2019-09-18 | 2020-04-10 | 河南皓泽电子股份有限公司 | Linear vibration motor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111404347A (en) * | 2020-04-20 | 2020-07-10 | 瑞声科技（南京）有限公司 | Oblique vibration linear motor and electronic equipment using same |
| WO2021212531A1 (en) * | 2020-04-20 | 2021-10-28 | 瑞声声学科技(深圳)有限公司 | Oblique vibration linear motor, and electronic device using same |
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