CN210167935U - Vibration motor - Google Patents
Vibration motor Download PDFInfo
- Publication number
- CN210167935U CN210167935U CN201921033473.6U CN201921033473U CN210167935U CN 210167935 U CN210167935 U CN 210167935U CN 201921033473 U CN201921033473 U CN 201921033473U CN 210167935 U CN210167935 U CN 210167935U
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- magnetic steel
- magnetic
- coil
- steel group
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
- H02K33/02—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moved one way by energisation of a single coil system and returned by mechanical force, e.g. by springs
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K33/00—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system
- H02K33/12—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with armatures moving in alternate directions by alternate energisation of two coil systems
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Apparatuses For Generation Of Mechanical Vibrations (AREA)
- Reciprocating, Oscillating Or Vibrating Motors (AREA)
Abstract
The utility model provides a vibrating motor, including magnetic circuit structure and coil, magnetic circuit structure includes and sets up in the first magnet steel group of coil one side along the first direction, set up in the second magnet steel group of coil opposite side along the first direction, set up in the third magnet steel group of coil one side and set up in the fourth magnet steel group of coil opposite side along the second direction in the third magnet steel group of coil one side along the second direction, the first direction is parallel with the winding plane of coil, the second direction is perpendicular with the winding plane of coil, first magnet steel group and second magnet steel group all include the main magnet steel of arranging the setting, main magnet steel magnetizes along the second direction, the direction of magnetizing of two adjacent main magnet steels is opposite, the direction of magnetizing of the main magnet steel that the position is relative in first magnet steel group and the second magnet steel group is the same; the third magnetic steel group and the fourth magnetic steel group comprise auxiliary magnetic steels, the auxiliary magnetic steels are magnetized in the first direction, and the auxiliary magnetic steels in the third magnetic steel group and the fourth magnetic steel group, which are opposite in position, are magnetized in opposite directions. The utility model discloses a vibrating motor response speed is fast, and the vibration effect is better.
Description
[ technical field ] A method for producing a semiconductor device
The utility model relates to a vibrating motor field especially relates to a vibrating motor.
[ background of the invention ]
A vibration motor is a component that converts electric energy into mechanical energy using a generation principle of electromagnetic force, and is generally installed in a portable mobile device to generate vibration feedback, such as vibration of a mobile phone or vibration feedback of a game machine.
In the related art, the vibration motor generally provides a driving force only by the lorentz force generated by the interaction between the coil and the magnetic field of the magnetic steel to drive the vibrator to vibrate back and forth, but the driving force of the vibration motor is small, and thus the response time of vibration is long.
Therefore, it is necessary to provide a new vibration motor to solve the above problems.
[ Utility model ] content
An object of the utility model is to provide a drive power when oscillator vibrates is big, the vibrating motor that response speed is fast.
The utility model provides a vibration motor, which comprises a shell with an accommodating space, a vibrator and a stator, wherein the vibrator and the stator are accommodated in the accommodating space, the vibrator comprises a magnetic circuit structure for vibration, the stator comprises a coil for driving the vibration of the magnetic circuit structure, the magnetic circuit structure comprises a first magnetic steel group arranged on one side of the coil along a first direction, a second magnetic steel group arranged on the other side of the coil along the first direction, a third magnetic steel group arranged on one side of the coil along a second direction and a fourth magnetic steel group arranged on the other side of the coil along the second direction, wherein the first direction is parallel to the winding plane of the coil, the second direction is vertical to the winding plane of the coil, the first magnetic steel group and the second magnetic steel group are symmetrically arranged, the third magnetic steel group and the fourth magnetic steel group are symmetrically arranged, the first magnetic steel group and the second magnetic steel group both comprise a plurality of main magnetic steels arranged, the main magnetic steels are magnetized along the second direction, the magnetizing directions of two adjacent main magnetic steels are opposite, and the magnetizing directions of the main magnetic steels opposite to each other in the first magnetic steel group and the second magnetic steel group are the same; the third magnetic steel group and the fourth magnetic steel group comprise auxiliary magnetic steel, the auxiliary magnetic steel is magnetized in the first direction, and the auxiliary magnetic steel in the third magnetic steel group and the auxiliary magnetic steel in the fourth magnetic steel group are opposite in magnetizing direction.
Preferably, the magnetic structure further includes a magnetic frame fixedly connected to the main magnetic steel, the magnetic frame includes a first magnetic plate attached to the first magnetic steel set and a second magnetic plate attached to the second magnetic steel set, the first magnetic plate is disposed on one side of the first magnetic steel set away from the second magnetic steel set, and the second magnetic plate is disposed on one side of the second magnetic steel set away from the first magnetic steel set.
Preferably, the vibrator further includes a counterweight block, the magnetic circuit structure is assembled in the counterweight block, the counterweight block is suspended in the accommodating space, the counterweight block includes two long side walls arranged in parallel at intervals and two short side walls arranged at two ends of the long side walls and connected to the two long side walls, the long side walls and the short side walls are connected end to form an accommodating cavity, and the magnetic conduction frame and the coil are accommodated in the accommodating cavity.
Preferably, the first magnetic conductive plate is clamped between the first magnetic steel group and one of the long side walls, and the second magnetic conductive frame is clamped between the second magnetic steel group and the other of the long side walls.
Preferably, the third magnetic steel and the fourth magnetic steel group are respectively fixed on the two short side walls.
Preferably, the short lateral wall is followed the both ends of casing direction of height are sunken to be formed with the draw-in groove, vibrating motor still include with the draw-in groove corresponds the stopper that sets up, the stopper with casing fixed connection, the draw-in groove with the stopper cooperation is used for the restriction the displacement volume of oscillator.
Preferably, the first magnetic steel group comprises first main magnetic steel and second main magnetic steel which are arranged at intervals, and the magnetizing direction of the first main magnetic steel is opposite to that of the second main magnetic steel; the second magnetic steel group comprises third main magnetic steel and fourth main magnetic steel which are arranged at intervals, and the magnetizing direction of the third main magnetic steel is opposite to that of the fourth main magnetic steel; the magnetizing direction of the first main magnetic steel is the same as that of the third main magnetic steel, and the magnetizing direction of the second main magnetic steel is the same as that of the fourth main magnetic steel.
Preferably, the third magnetic steel group comprises a first auxiliary magnetic steel, the fourth magnetic steel group comprises a second auxiliary magnetic steel, and the magnetizing directions of the first auxiliary magnetic steel and the second auxiliary magnetic steel are opposite.
Preferably, the stator further comprises a soft magnet fixedly connected with the coil, the coil is sleeved on the soft magnet, and the coil is fixedly connected with the shell.
Compared with the prior art, the utility model discloses a vibrating motor's magnetic circuit structure includes that soft magnet and cover are located the coil of soft magnet, and coil week side sets up magnetic conduction frame and magnet steel, main magnet steel is followed the second direction magnetizes, vice magnet steel is followed the first direction magnetizes, first direction with the second direction is perpendicular, makes the oscillator can obtain the vibration in first direction and second direction respectively, obtains more excellent use and experiences, produces the electromagnetic force after the stator circular telegram, with the lorentz power of magnet steel superposes mutually, produces drive power drive the balancing weight vibration has increased the drive power size, makes response speed fast, and the vibration effect is better.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without inventive efforts, wherein:
fig. 1 is a schematic perspective view of a vibration motor according to the present invention;
fig. 2 is an exploded view of the vibration motor shown in fig. 1;
fig. 3 is a cross-sectional view of the loudspeaker shown in fig. 1, taken along the line III-III;
FIG. 4 is a front view of the vibration motor of FIG. 1 without a top wall;
fig. 5 is a schematic view of the magnetic circuit structure shown in fig. 4;
fig. 6 is a normalized magnetic induction distribution diagram of the magnetic circuit structure shown in fig. 5;
fig. 7 is a vibration frequency domain analysis diagram of the vibration motor provided by the present invention.
[ detailed description ] embodiments
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments.
Referring to fig. 1-3, the present invention provides a vibration motor 100, wherein the vibration motor 100 includes a housing 1, a stator 2, a vibrator 3 and an elastic member 4.
The shell 1 comprises a top wall 11, a bottom wall 13 and a side wall 15, wherein the bottom wall 13 is arranged opposite to the top wall 11, the side wall 15 is connected with the top wall 11 and the bottom wall 13, the top wall 11, the bottom wall 13 and the side wall 15 are matched to enclose an accommodating space, and the vibrator 3, the stator 2 and the elastic piece 4 are accommodated in the accommodating space.
The lateral wall 15 includes the long limit 151 that two parallel intervals set up and locates long limit 151 both ends are connected two the two minor faces 153 of long limit 151, long limit 151 with minor face 153 can adopt integrated into one piece, also can adopt split type design and fixed connection.
In this embodiment, the top wall 11 and the side wall 15 are integrally formed, and the bottom wall 13 directly covers the side wall 15, so as to facilitate assembly of the vibration motor 100, and in other embodiments, the side wall 15 and the bottom wall 13 may be integrally formed.
The stator 2 is fixed to the housing 1, specifically, the stator 2 is fixed to the bottom wall 13, the stator 2 includes a coil 21 and a soft magnet 22, and a central axis of the coil 21 is parallel to an extending direction of the short side 153.
The soft magnet 22 is made of iron-silicon alloy and has a columnar structure, and the coil 21 is sleeved on the outer circumference of the soft magnet 22. When the magnetic coil is installed, the coil 21 is sleeved from one end of the soft magnet 22, and assembly and disassembly are convenient.
After the coil 21 is electrified, the coil 21 and the soft magnet 22 are matched to form an electromagnet, the coil 21 generates a magnetic field to magnetize the soft magnet 22, and the magnetic field generated after the soft magnet 22 is magnetized and the magnetic field of the coil 21 are mutually superposed, so that the magnetism of the coil 21 is greatly increased.
Further, the number of the stators 2 may be plural, the plural stators 2 are mutually arranged along the direction of the long side 151, and the directions of the currents of the coils 21 in two adjacent stators 2 are opposite, and the directions of the generated magnetic fields are also opposite. The magnetic fields generated by the coils 21 of the two stators 2 act on the vibrator 3 at the same time, so that the driving force can be increased, and the vibration effect of the vibrator 3 can be improved.
The vibrator 3 vibrates along a first direction and/or a second direction, wherein the first direction is parallel to a winding plane of the coil 21, namely a direction shown by an X axis in fig. 1 is the first direction; the second direction is perpendicular to a winding plane of the coil 21, i.e., a direction indicated by an axis Y in fig. 1 is the second direction. The winding plane of the coil 21 is a plane corresponding to one turn of the coil 21. The vibrator 3 includes a weight 31 and a magnetic structure 33 assembled to the weight 31, and the weight 31 is suspended in the accommodating space.
The magnetic structure 33 is driven by the magnetic field of the coil 21 to vibrate, and the weight 31 is used for enhancing the vibration effect of the magnetic structure 33. The counterweight 31 includes two long sidewalls 311 disposed in parallel at an interval and two short sidewalls 313 disposed at two ends of the long sidewalls 311 and connected to the two long sidewalls 311, the long sidewalls 311 and the short sidewalls 313 are connected end to form an accommodating cavity 315, and the stator 2 and the magnetic circuit structure 33 are accommodated in the accommodating cavity 315. The extending direction of the long side wall 311 is the same as the extending direction of the long side 151, and the extending direction of the short side wall 313 is the same as the extending direction of the short side 153. Further, the long side wall 311 is spaced apart from the long side 151, and the short side wall 313 is spaced apart from the short side 153.
Two ends of the short side wall 313 along the height direction of the housing 1 are recessed to form clamping grooves 3130, and the two clamping grooves 3130 are symmetrically arranged at two ends of the short side wall 313. The locking groove 3130 is communicated with the accommodating space, and the locking groove 3130 is disposed on a side of the short sidewall 313 away from the accommodating cavity 315.
The vibration motor 100 further includes a limiting block 5 corresponding to the clamping groove 3130, and the limiting block 5 is fixedly connected to the housing 1. The clamping groove 3130 is matched with the limiting block 5 to limit the displacement of the vibrator 3, so that excessive vibration of the vibrator 3 is avoided. Further, the number of the limit blocks 5 is four, wherein two limit blocks 5 corresponding to the two locking grooves 3130 at the top end of the short side wall 313 are fixedly connected to the top wall 11, and two limit blocks 5 corresponding to the two locking grooves 3130 at the bottom end of the short side wall 313 are fixedly connected to the bottom wall 13.
It is understood that the depth of the card slot 3130 along the X-axis direction is the vibration amount of the vibrator 3 in the first direction.
The magnetic circuit structure 33 includes a magnetic frame 331 accommodated in the accommodating cavity 315, a first magnetic steel set 333 disposed on one side of the coil 21 along the first direction, a second magnetic steel set 335 disposed on the other side of the coil along the first direction, a third magnetic steel set 337 disposed on one side of the coil 21 along the second direction, and a fourth magnetic steel set 339 disposed on the other side of the coil 21 along the second direction. The first magnetic steel group 333 and the second magnetic steel group 335 are symmetrically arranged, and the third magnetic induction group 337 and the fourth magnetic induction group 339 are symmetrically arranged.
Referring to fig. 4, the magnetic frame 331 includes a first magnetic plate 3311 attached to the first magnetic steel set 333 and a second magnetic plate 3312 attached to the second magnetic steel set 335, the first magnetic plate 3311 is disposed on a side of the first magnetic steel set 333 away from the second magnetic steel set 335, and the second magnetic plate 3312 is disposed on a side of the second magnetic steel set 335 away from the first magnetic steel set 333.
First magnetic conductive plate 3311 presss from both sides and locates first magnet steel group 333 and one between the major lateral wall 311, second magnetic conductive plate 3312 presss from both sides and locates second magnet steel group 335 and another between the major lateral wall 311.
In other embodiments, the magnetic frame 331 may also be a rectangular frame structure, and may further include a third magnetic plate fixed to one end of the first magnetic plate 3311 and connected to the second magnetic plate 3312, and a fourth magnetic plate fixed to the other end of the first magnetic plate 3311 and connected to the second magnetic plate 3312, wherein the first magnetic plate 3311, the third magnetic plate, the second magnetic plate 3312, and the fourth magnetic plate are sequentially connected end to end.
Referring to fig. 4, each of the first magnetic steel group 333 and the second magnetic steel group 335 includes multiple arranged main magnetic steels, the main magnetic steels are magnetized along the second direction, the magnetizing directions of two adjacent main magnetic steels are opposite, and the magnetizing directions of the main magnetic steels corresponding to the positions in the first magnetic steel group 333 and the second magnetic steel group 335 are the same.
The third magnetic steel group 337 and the fourth magnetic steel group 339 comprise auxiliary magnetic steels, the auxiliary magnetic steels are magnetized in the first direction, and the auxiliary magnetic steels in the third magnetic steel group 337 and the fourth magnetic steel group 339 are opposite in magnetizing direction and are opposite in position.
Referring to fig. 5, specifically, in the present embodiment, the first magnetic steel group 333 includes a first magnetic steel 3331 and a second magnetic steel 3332; the second magnetic steel group 335 comprises a third magnetic steel 3351 and a fourth magnetic steel 3352, wherein the magnetizing direction of the first magnetic steel 3331 is opposite to that of the second magnetic steel 3332, and the magnetizing direction of the first magnetic steel 3331 is the same as that of the third magnetic steel 3351; the magnetizing direction of the fourth magnetic steel 3352 is opposite to that of the third magnetic steel 3352.
The third magnetic steel group 337 includes a first auxiliary magnetic steel 3371; fourth magnet steel group 339 includes the vice magnet steel 3391 of second, first vice magnet steel 3371 magnetize the direction with the direction of magnetizing of the vice magnet steel of second is opposite.
For the more clear description of the present invention, the magnetizing direction of each magnetic steel is defined as follows:
the side of the first main magnetic steel 3331 close to the first magnetic conductive plate 3311 is an S-pole, and the side far away from the first magnetic conductive plate 3311 is an N-pole;
the side of the second main magnetic steel 3332 close to the first magnetic conductive plate 3311 is an N pole, and the side far away from the first magnetic conductive plate 3311 is an S pole;
the side of the third main magnetic steel 3351 close to the first magnetic conductive plate 3311 is an N pole, and the side far from the first magnetic conductive plate 3311 is an S pole.
The side of the fourth main magnetic steel 3352 close to the second magnetic frame 3312 is an S-pole, and the side far from the second magnetic frame 3312 is an N-pole.
One side of the first auxiliary magnetic steel 3371, which is far away from the coil 21, is an S pole, and one side of the first auxiliary magnetic steel 3371, which is close to the coil 21, is an N pole;
the second secondary magnetic steel 3391 is far away from one side of the coil 21 and is an S pole, and one side close to the coil 21 is an N pole.
The coil 21 and the soft magnet 22 cooperate to form an electromagnet, electromagnetic force is generated after the electromagnet is powered on, the magnetic circuit structure 33 generates lorentz force, the vibrator 3 is pushed to vibrate in the accommodating space through superposition of the electromagnetic force and the lorentz force, the vibration is conducted to the shell 1 through the elastic piece 4, the shell 1 is driven to vibrate, and vibration inductance is output to the outside through the vibration motor 100. By adjusting the direction of the current in the coil 21, the direction of the magnetic field of the coil 21 can be changed, thereby changing the vibration direction of the vibrator 3.
Referring to fig. 6, the magnetic plate frame 331 is made of a magnetic material, and has a magnetic effect, so that the magnetic induction lines are prevented from being scattered, the lorentz force is enhanced, the vibration force is increased, and the vibration effect of the vibration motor 100 is improved.
One end of the elastic element 4 is fixed to the counterweight 31, and the other end of the elastic element is fixed to the housing 1 and is used for suspending the vibrator 3 in the accommodating space. The joint of the elastic element 4 and the balancing weight 31 and/or the shell 1 is preferably provided with a reinforcing welding piece, which not only can enhance the binding force of the elastic element 4, but also can prevent the elastic element 4 from being excessively bent and broken.
Referring to fig. 7, fig. 7 is a vibration frequency domain analysis diagram of the vibration motor provided by the present invention, wherein a curve I is a vibration quantity curve of the vibration motor in the first direction, and a curve II is a vibration quantity curve of the vibration motor in the second direction, and it can be seen from fig. 7 that, after the coil 21 is energized, the vibrator 3 can vibrate in the X-axis direction and the Y-axis direction at the same time, that is, the vibration direction of the vibrator 3 is the combination direction of the vibration in the X-axis direction and the vibration in the Y-axis direction, in short, the vibrator 3 vibrates obliquely with respect to the X-axis direction or the Y-axis direction; further, when the current frequency of the coil 21 is less than 150Hz, the vibrator 3 vibrates obliquely in the direction close to the X axis; when the current frequency of the coil 21 is equal to 150Hz, the included angle between the vibration direction of the vibrator 3 and the X-axis direction/Y-axis direction is 45 degrees, and the vibration quantity of the vibrator 3 is at a lower level; when the current frequency of the coil 21 is higher than 150Hz, the vibrator 3 vibrates in the direction close to the Y axis. Further, can effectively excite the vibration of X axle direction under 104 Hz's frequency condition, can effectively excite the vibration of Y axle direction under 181 Hz's frequency condition, consequently, the utility model provides a vibrating motor 100 can obtain two kinds of vibrations respectively at 104Hz and 181 Hz.
Compared with the prior art, the utility model discloses a vibrating motor's magnetic circuit structure includes that soft magnet and cover are located the coil of soft magnet, and coil week side sets up magnetic conduction frame and magnet steel, main magnet steel is followed the second direction magnetizes, vice magnet steel is followed the first direction magnetizes, first direction with the second direction is perpendicular, makes the oscillator can obtain the vibration in first direction and second direction respectively, obtains more excellent use and experiences, produces the electromagnetic force after the stator circular telegram, with the lorentz power of magnet steel superposes mutually, produces drive power drive the balancing weight vibration has increased the drive power size, makes response speed fast, and the vibration effect is better.
The above only is the embodiment of the present invention, not limiting the scope of the present invention, all the equivalent structures or equivalent processes of the present invention are used in the specification and the attached drawings, or directly or indirectly applied to other related technical fields, and the same principle is included in the protection scope of the present invention.
Claims (9)
1. A vibration motor comprises a shell with an accommodating space, a vibrator and a stator, wherein the vibrator and the stator are accommodated in the accommodating space, the vibration motor is characterized in that the vibrator comprises a magnetic circuit structure for vibration, the stator comprises a coil for driving the magnetic circuit structure to vibrate, the magnetic circuit structure comprises a first magnetic steel group arranged on one side of the coil along a first direction, a second magnetic steel group arranged on the other side of the coil along the first direction, a third magnetic steel group arranged on one side of the coil along a second direction and a fourth magnetic steel group arranged on the other side of the coil along the second direction, wherein the first direction is parallel to a winding plane of the coil, the second direction is vertical to the winding plane of the coil, the first magnetic steel group and the second magnetic steel group are symmetrically arranged, the third magnetic steel group and the fourth magnetic steel group are symmetrically arranged, and the first magnetic steel group and the second magnetic steel group both comprise a plurality of arranged main magnetic steels, the main magnetic steels are magnetized along the second direction, the magnetizing directions of two adjacent main magnetic steels are opposite, and the magnetizing directions of the main magnetic steels opposite to each other in the first magnetic steel group and the second magnetic steel group are the same; the third magnetic steel group and the fourth magnetic steel group comprise auxiliary magnetic steel, the auxiliary magnetic steel is magnetized in the first direction, and the auxiliary magnetic steel in the third magnetic steel group and the auxiliary magnetic steel in the fourth magnetic steel group are opposite in magnetizing direction.
2. The vibration motor of claim 1, wherein the magnetic circuit structure further comprises a magnetic frame fixedly connected to the main magnetic steel, the magnetic frame comprises a first magnetic plate attached to the first magnetic steel set and a second magnetic plate attached to the second magnetic steel set, the first magnetic plate is disposed on a side of the first magnetic steel set away from the second magnetic steel set, and the second magnetic plate is disposed on a side of the second magnetic steel set away from the first magnetic steel set.
3. The vibration motor of claim 2, wherein the vibrator further comprises a weight block, the magnetic circuit structure is assembled in the weight block, the weight block is suspended in the accommodating space, the weight block comprises two long side walls arranged in parallel at intervals and two short side walls arranged at two ends of the long side walls and connected with the two long side walls, the long side walls and the short side walls are connected end to form an accommodating cavity, and the magnetic conduction frame and the coil are accommodated in the accommodating cavity.
4. The vibration motor according to claim 3, wherein the first magnetic conductive plate is sandwiched between the first magnetic steel group and one of the long sidewalls, and the second magnetic conductive frame is sandwiched between the second magnetic steel group and the other of the long sidewalls.
5. The vibration motor of claim 3, wherein the third magnetic steel and the fourth magnetic steel group are respectively fixed on two of the short side walls.
6. The vibration motor according to claim 4, wherein the short side walls are recessed to form clamping grooves along two ends of the housing in the height direction, the vibration motor further comprises a limiting block arranged corresponding to the clamping grooves, the limiting block is fixedly connected with the housing, and the clamping grooves and the limiting block are matched to limit the displacement of the vibrator.
7. The vibration motor of claim 1, wherein the first magnetic steel set comprises a first main magnetic steel and a second main magnetic steel which are arranged at intervals, and the magnetizing direction of the first main magnetic steel is opposite to that of the second main magnetic steel; the second magnetic steel group comprises third main magnetic steel and fourth main magnetic steel which are arranged at intervals, and the magnetizing direction of the third main magnetic steel is opposite to that of the fourth main magnetic steel; the magnetizing direction of the first main magnetic steel is the same as that of the third main magnetic steel, and the magnetizing direction of the second main magnetic steel is the same as that of the fourth main magnetic steel.
8. The vibration motor of claim 1, wherein the third magnetic steel group comprises a first secondary magnetic steel, the fourth magnetic steel group comprises a second secondary magnetic steel, and the first secondary magnetic steel and the second secondary magnetic steel have opposite magnetizing directions.
9. The vibration motor of claim 1, wherein the stator further comprises a soft magnetic body fixedly connected to the coil, the coil is fitted over the soft magnetic body, and the coil is fixedly connected to the housing.
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2019/093983 WO2021000087A1 (en) | 2019-06-29 | 2019-06-29 | Vibration motor |
| CNPCT/CN2019/093983 | 2019-06-29 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210167935U true CN210167935U (en) | 2020-03-20 |
Family
ID=69795120
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921033473.6U Expired - Fee Related CN210167935U (en) | 2019-06-29 | 2019-07-02 | Vibration motor |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN210167935U (en) |
| WO (1) | WO2021000087A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022006983A1 (en) * | 2020-07-10 | 2022-01-13 | 瑞声声学科技(深圳)有限公司 | Bidirectionally driven magnetic circuit |
| WO2022067905A1 (en) * | 2020-09-30 | 2022-04-07 | 瑞声声学科技(深圳)有限公司 | Vibration motor |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07131967A (en) * | 1993-11-01 | 1995-05-19 | Yuichi Moriki | Flat coil type linear actuator |
| JP6010080B2 (en) * | 2014-10-07 | 2016-10-19 | 日本電産コパル株式会社 | Linear vibration motor |
| CN206834954U (en) * | 2017-01-20 | 2018-01-02 | 瑞声科技(新加坡)有限公司 | Linear vibration electric motor |
| CN206524745U (en) * | 2017-01-20 | 2017-09-26 | 瑞声科技(新加坡)有限公司 | Linear vibration electric motor |
| JP2018207553A (en) * | 2017-05-30 | 2018-12-27 | 日本電産セイミツ株式会社 | Vibration motor |
| CN110277890B (en) * | 2019-06-04 | 2020-09-18 | 瑞声科技（南京）有限公司 | Vibration motor |
-
2019
- 2019-06-29 WO PCT/CN2019/093983 patent/WO2021000087A1/en active Application Filing
- 2019-07-02 CN CN201921033473.6U patent/CN210167935U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2022006983A1 (en) * | 2020-07-10 | 2022-01-13 | 瑞声声学科技(深圳)有限公司 | Bidirectionally driven magnetic circuit |
| WO2022067905A1 (en) * | 2020-09-30 | 2022-04-07 | 瑞声声学科技(深圳)有限公司 | Vibration motor |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021000087A1 (en) | 2021-01-07 |
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Granted publication date: 20200320 Termination date: 20210702 |