CN110277890B - Vibration motor - Google Patents
Vibration motor Download PDFInfo
- Publication number
- CN110277890B CN110277890B CN201910479116.0A CN201910479116A CN110277890B CN 110277890 B CN110277890 B CN 110277890B CN 201910479116 A CN201910479116 A CN 201910479116A CN 110277890 B CN110277890 B CN 110277890B
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- magnetic steel
- magnetic
- steel
- solenoid
- vibration motor
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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
- H02K33/18—Motors with reciprocating, oscillating or vibrating magnet, armature or coil system with coil systems moving upon intermittent or reversed energisation thereof by interaction with a fixed field system, e.g. permanent magnets
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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 invention relates to 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 shell, one of the vibrator and the stator comprises a solenoid, the other of the vibrator and the stator comprises a magnetic circuit structure, the magnetic circuit structure comprises first magnetic steel, second magnetic steel, a first magnetic steel group, a second magnetic steel group and a magnetic conduction support, and the solenoid comprises an iron core and a coil wound on the surface of the iron core. The vibration motor has the beneficial effects that the first magnetic steel group and the second magnetic steel group are arranged at the two ends of the solenoid, so that the magnetic circuit structure can generate driving force in at least two directions, and the vibration motor can have modes with different frequencies by designing the corresponding elastic parts, thereby generating resonance in at least two directions and obtaining the vibration sense of multiple frequencies.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the technical field of motors, in particular to a vibration motor.
[ background of the invention ]
With the development of electronic technology, portable consumer electronic products, such as mobile phones, handheld game consoles, navigation devices or handheld multimedia entertainment devices, are more and more sought after by people, and these electronic products generally use a vibration motor to perform system feedback, such as incoming call prompt, information prompt, navigation prompt, vibration feedback of game consoles, and the like. Such a wide application requires a vibration motor having high performance and long service life.
In the related art, the vibration motor is often driven by a driving force in only a single direction, that is, the vibration motor generates a sense of vibration in only the single direction.
Therefore, it is necessary to provide a new vibration motor to solve the above technical problems.
[ summary of the invention ]
The present invention is directed to a vibration motor, which solves the technical problem that the vibration motor in the related art only generates the vibration sense in the single direction.
In order to solve the above-mentioned technical problems, the present invention provides a vibration motor including a case having a first receiving space, and a vibrator and a stator received in the case, one of the vibrator and the stator including a solenoid, the other of the vibrator and the stator including a magnetic circuit structure,
the solenoid comprises an iron core, two magnetic conduction pole shoes which are respectively and fixedly arranged at two ends of the iron core and a coil which is wound on the surface of the iron core and is positioned between the two magnetic conduction pole shoes;
the magnetic circuit structure includes:
the first magnetic steel and the second magnetic steel are respectively arranged on two sides of the solenoid and are oppositely arranged, and the magnetic poles of the first magnetic steel and the second magnetic steel are oppositely arranged in the same pole;
the first magnetic steel group and the second magnetic steel group are respectively arranged on the other two sides of the solenoid and are oppositely arranged, and the first magnetic steel group and the second magnetic steel group are respectively opposite to the two magnetic conduction pole shoes; the first magnetic steel group comprises a third magnetic steel and a fourth magnetic steel which are arranged side by side, and the polarity of the magnetic poles of the solenoid opposite to the third magnetic steel and the fourth magnetic steel is opposite to that of the magnetic poles of the solenoid; the second magnet steel group comprises fifth magnet steel and sixth magnet steel which are arranged side by side, the fifth magnet steel and the sixth magnet steel are opposite to the magnetic pole polarity of the solenoid, the oscillator is parallel to the motion component of the solenoid in the first direction of the axis of the solenoid, and the oscillator is also perpendicular to the motion component of the solenoid in the second direction of the first direction.
The third magnetic steel and the fourth magnetic steel are arranged side by side along the second direction.
Preferably, the vibrator further has a motion component in a third direction, and the third direction is perpendicular to the first direction and the second direction.
Preferably, the critical surfaces of the third magnetic steel and the fourth magnetic steel are clamped between the second direction and the third direction.
Preferably, still including the magnetic conduction support that has the second accommodating space, first magnet steel second magnet steel first magnet steel group, second magnet steel group and the solenoid all accept in the second accommodating space, just first magnet steel second magnet steel first magnet steel group and second magnet steel group centers on the solenoid sets up and set firmly respectively in the inboard surface of magnetic conduction support.
Preferably, the third magnetic steel and the fifth magnetic steel are symmetrically arranged about the solenoid and opposite in magnetic pole polarity, and the fourth magnetic steel and the sixth magnetic steel are symmetrically arranged about the solenoid and opposite in magnetic pole polarity.
Preferably, the third magnetic steel, the fourth magnetic steel, the fifth magnetic steel and the sixth magnetic steel are rectangular.
Preferably, the third magnetic steel, the fourth magnetic steel, the fifth magnetic steel and the sixth magnetic steel are all triangular.
Preferably, the third magnetic steel and the fourth magnetic steel are integrally arranged, and the fifth magnetic steel and the sixth magnetic steel are integrally arranged.
Preferably, the vibrator further comprises a balancing weight surrounding the magnetic conductive support, the magnetic conductive support is fixedly arranged on the balancing weight, the vibration motor further comprises two elastic pieces accommodated in the shell, one end of each elastic piece is fixed on the balancing weight, and the other end of each elastic piece is fixed on the shell.
The vibration motor has the beneficial effects that the first magnetic steel group and the second magnetic steel group are arranged at the two ends of the solenoid, so that the magnetic circuit structure can generate driving force in at least two directions, and the vibration motor can have modes with different frequencies by designing the corresponding elastic parts, thereby generating resonance in at least two directions and obtaining the vibration sense of multiple frequencies.
[ description of the drawings ]
Fig. 1 is an exploded perspective view of a vibration motor of embodiment 1 of the present invention;
fig. 2 is a sectional view taken along a longitudinal direction of the vibration motor shown in fig. 1;
FIG. 3 is a perspective view showing the mounting position of the solenoid and the magnetic steel in embodiment 1;
FIG. 4 is a perspective view showing the mounting position of a solenoid and a magnetic steel in embodiment 2;
FIG. 5 is a perspective view showing the mounting position of the solenoid and the magnetic steel in embodiment 3;
fig. 6 is a perspective view of the first magnetic steel group in embodiment 4.
[ detailed description ] embodiments
The present invention will be described in further detail with reference to the accompanying drawings and embodiments. The following examples are intended to illustrate the invention but are not intended to limit the scope of the invention.
Example 1
Referring to fig. 1 and 2, the present invention provides a vibration motor 100, which includes a housing 1 having a first receiving space, a vibrator 2 and a stator 3 received in the housing 1, and an elastic member 4 elastically supporting the vibrator 2. One of the vibrator 2 and the stator 3 includes a solenoid 31, and the other of the vibrator 2 and the stator 3 includes a magnetic structure 21. In a preferred embodiment of the present invention, the stator 3 includes the solenoid 31, the vibrator 2 includes the magnetic circuit structure 21, and the stator 3 is fixed to the housing 1.
The solenoid 31 includes an iron core 310, two magnetically conductive pole pieces 311 respectively fixed at two ends of the iron core 310, and a coil 312 wound around the surface of the iron core 310 and located between the two magnetically conductive pole pieces 311, and after the solenoid 31 is energized, the two magnetically conductive pole pieces 311 are magnetized, thereby having a magnetic attraction force.
The magnetic structure 21 includes a first magnetic steel 211, a second magnetic steel 212, a first magnetic steel set 213, a second magnetic steel set 214, and a magnetic conductive bracket 215. The magnetic conductive bracket 215 is a rectangular frame-shaped structure, and the first magnetic steel 211, the second magnetic steel 212, the first magnetic steel set 213, and the second magnetic steel set 214 are respectively and fixedly arranged on the inner side surface of the magnetic conductive bracket 215.
The first magnetic steel 211 and the second magnetic steel 212 are respectively disposed on two sides of the solenoid 31, and the magnetic poles of the first magnetic steel 211 and the second magnetic steel 212 are arranged in a homopolar manner, and in a specific embodiment of the present invention, the first magnetic steel 211 and the second magnetic steel 212 are both rectangular.
As shown in fig. 3, the first magnetic steel set 213 and the second magnetic steel set 214 are respectively disposed on the other two sides of the solenoid 31, the first magnetic steel set 213 and the second magnetic steel set 214 are respectively opposite to the two magnetic pole shoes 311, the first magnetic steel set 213 includes a third magnetic steel 2131 and a fourth magnetic steel 2132 which are disposed side by side, the third magnetic steel 2131 and the fourth magnetic steel 2132 are disposed opposite to the magnetic poles of the solenoid 31, specifically, the third magnetic steel 2131 and the fourth magnetic steel 2132 may be disposed in a split manner or disposed integrally; second magnet steel group 214 is including fifth magnet steel 2141 and sixth magnet steel 2142 that set up side by side, fifth magnet steel 2141 with sixth magnet steel 2142 is just right solenoid 31's magnetic pole polarity sets up in opposite directions, and is concrete, fifth magnet steel 2141 with sixth magnet steel 2142 can also integrative setting by split type setting.
The vibrator 2 has a motion component in a first direction parallel to the axis of the solenoid 31, the vibrator 2 further has a motion component in a second direction perpendicular to the first direction, and the third magnetic steel 2131 and the fourth magnetic steel 2132 are arranged side by side in the second direction. The vibrator 2 further has a motion component in a third direction, the third direction is perpendicular to the first direction and the second direction, and critical surfaces of the third magnetic steel 2131 and the fourth magnetic steel 2132 are sandwiched between the second direction and the third direction.
The third magnetic steel 2131 and the fifth magnetic steel 2141 are symmetrically disposed with respect to the solenoid 31 and have opposite magnetic poles, and the fourth magnetic steel 2132 and the sixth magnetic steel 2142 are symmetrically disposed with respect to the solenoid 31 and have opposite magnetic poles. Through the design of the first magnetic steel set 213 and the second magnetic steel set 214, the first magnetic steel set 213 and the second magnetic steel set 214 both generate attraction force on the magnetic pole piece 311, so that the magnetic circuit structure 21 generates driving force in two directions, and further the vibration motor 100 generates resonance in two directions, and further obtains vibration sense of two frequencies through setting.
In the embodiment of the present invention, each of the third magnetic steel 2131, the fourth magnetic steel 2132, the fifth magnetic steel 2141, and the sixth magnetic steel 2142 has a rectangular shape, and the third magnetic steel 2131 and the fourth magnetic steel 2132 may be arranged side by side in a short side direction of the vibration motor 100, so that the magnetic circuit structure 21 may generate driving forces in both the first direction X and the second direction Y.
The vibrator 2 further includes a weight block 22 surrounding the magnetic conductive support 215, and the magnetic conductive support 215 is fixedly disposed on the weight block 22.
The vibration motor 100 further includes two elastic members 4 accommodated in the housing 1, one end of each elastic member 4 is fixed to the corresponding weight 22, and the other end of each elastic member 4 is fixed to the housing 1.
In an embodiment of the present invention, the housing 1 includes a top cover 11, a middle frame 12, and a bottom cover 13 sequentially disposed along a direction perpendicular to a vibration direction of the vibration motor 100, the middle frame 12 is a hollow rectangular frame and has two open ends, and the top cover 11 and the bottom cover 13 respectively cover the two open ends of the middle frame 12.
Vibrating motor 100 is still including being located top cap 11 with between the balancing weight 22 and bottom 13 with bolster 6 between the balancing weight 22, 6 is the cube of rectangular shape between the buffering, and is concrete, bolster 6 can be made by elastic material such as bubble cotton, silica gel. The buffer member 6 is fixedly arranged on the housing 1, and the counterweight block 22 is provided with a yielding space 221 corresponding to the buffer member 6.
Example 2
As shown in fig. 4, embodiment 2 is different from embodiment 1 in that the third magnetic steel 2131 and the fourth magnetic steel 2132 are arranged side by side in the height direction of the vibration motor 100, and specifically, the third magnetic steel 2131 and the fourth magnetic steel 2132 may be arranged in a split manner or in an integrated manner. Fifth magnet steel 2141 and sixth magnet steel 2142 are in vibrating motor 100's direction of height sets up side by side, and is specific, fifth magnet steel 2141 with sixth magnet steel 2142 can also set up as an organic whole by split type setting. The magnetic pole piece 311 is provided with lorentz magnetic force by the first magnetic steel set 213 and the second magnetic steel set 214, so that the magnetic circuit structure 21 can generate driving force in both the first direction X and the third direction Z.
Example 3
As shown in fig. 5, embodiment 3 differs from embodiment 1 in that the third magnetic steel 2131 and the fifth magnetic steel 2141 are asymmetrically arranged with respect to the solenoid 31 and have opposite magnetic poles, and the fourth magnetic steel 2132 and the sixth magnetic steel 2142 are asymmetrically arranged with respect to the solenoid 31 and have opposite magnetic poles, specifically, the third magnetic steel 2131, the fourth magnetic steel 2132, the fifth magnetic steel 2141 and the sixth magnetic steel 2142 are triangular, and lorentz magnetic force is generated on the magnetic pole piece 311 through the first magnetic steel group 213 and the second magnetic steel group 214, so that the magnetic circuit structure 21 can generate driving forces in three directions, namely, the first direction X, the second direction Y and the third direction Z.
Example 4
As shown in fig. 6, embodiment 4 differs from embodiment 3 in that the third magnetic steel 2131 and the fourth magnetic steel 2132 are integrally disposed, the fifth magnetic steel 2141 and the sixth magnetic steel 2142 are integrally disposed, and the first magnetic steel group 213 and the second magnetic steel group 214 are magnetized respectively, and have opposite magnetic poles, that is, the third magnetic steel 2131 and the fourth magnetic steel 2132 are formed on the first magnetic steel group 213, and the fifth magnetic steel 2141 and the sixth magnetic steel 2142 are formed on the second magnetic steel group 214.
The vibration motor has the beneficial effects that the first magnetic steel group and the second magnetic steel group are arranged at the two ends of the solenoid, so that the magnetic circuit structure can generate driving force in at least two directions, and the vibration motor can have modes with different frequencies by designing the corresponding elastic parts, thereby generating resonance in at least two directions and obtaining the vibration sense of multiple frequencies.
While the foregoing is directed to the preferred embodiment of the present invention, it will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention.
Claims (10)
1. A vibration motor including a case having a first housing space, and a vibrator and a stator housed in the case, one of the vibrator and the stator including a solenoid, and the other of the vibrator and the stator including a magnetic circuit structure,
the solenoid comprises an iron core, two magnetic conduction pole shoes which are respectively and fixedly arranged at two ends of the iron core and a coil which is wound on the surface of the iron core and is positioned between the two magnetic conduction pole shoes;
the magnetic circuit structure includes:
the first magnetic steel and the second magnetic steel are respectively arranged on two sides of the solenoid and are oppositely arranged, and the magnetic poles of the first magnetic steel and the second magnetic steel are oppositely arranged in the same pole;
the first magnetic steel group and the second magnetic steel group are respectively arranged on the other two sides of the solenoid and are oppositely arranged, and the first magnetic steel group and the second magnetic steel group are respectively opposite to the two magnetic conduction pole shoes; the first magnetic steel group comprises a third magnetic steel and a fourth magnetic steel which are arranged side by side, and the polarity of the magnetic poles of the solenoid opposite to the third magnetic steel and the fourth magnetic steel is opposite to that of the magnetic poles of the solenoid; the second magnet steel group comprises fifth magnet steel and sixth magnet steel which are arranged side by side, the fifth magnet steel and the sixth magnet steel are opposite to the magnetic pole polarity of the solenoid, the oscillator is parallel to the motion component of the solenoid in the first direction of the axis of the solenoid, and the oscillator is also perpendicular to the motion component of the solenoid in the second direction of the first direction.
2. The vibration motor of claim 1, wherein the third magnetic steel and the fourth magnetic steel are arranged side by side in the second direction.
3. The vibration motor of claim 1, wherein the vibrator further has a motion component in a third direction, the third direction being perpendicular to the first direction and the second direction.
4. The vibration motor according to claim 3, wherein a critical plane of the third magnetic steel and the fourth magnetic steel is sandwiched between the second direction and the third direction.
5. The vibration motor of claim 1, further comprising a magnetic conductive bracket having a second receiving space, wherein the first magnetic steel, the second magnetic steel, the first magnetic steel set, the second magnetic steel set, and the solenoid are received in the second receiving space, and the first magnetic steel, the second magnetic steel, the first magnetic steel set, and the second magnetic steel set are disposed around the solenoid and are respectively fixed on an inner side surface of the magnetic conductive bracket.
6. The vibration motor according to claim 1 or 3, wherein the third magnetic steel and the fifth magnetic steel are symmetrically disposed about the solenoid and have opposite magnetic poles, and the fourth magnetic steel and the sixth magnetic steel are symmetrically disposed about the solenoid and have opposite magnetic poles.
7. The vibration motor of claim 2, wherein the third magnetic steel, the fourth magnetic steel, the fifth magnetic steel, and the sixth magnetic steel are rectangular.
8. The vibration motor of claim 4, wherein the third magnetic steel, the fourth magnetic steel, the fifth magnetic steel and the sixth magnetic steel are all triangular.
9. The vibration motor according to claim 1, wherein the third magnetic steel is provided integrally with the fourth magnetic steel, and the fifth magnetic steel is provided integrally with the sixth magnetic steel.
10. The vibration motor of claim 5, wherein the vibrator further comprises a weight block disposed around the magnetic conductive bracket, the magnetic conductive bracket is fixedly disposed on the weight block, the vibration motor further comprises an elastic member accommodated in the housing, one end of the elastic member is fixed to the weight block, and the other end of the elastic member is fixed to the housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910479116.0A CN110277890B (en) | 2019-06-04 | 2019-06-04 | Vibration motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910479116.0A CN110277890B (en) | 2019-06-04 | 2019-06-04 | Vibration motor |
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| Publication Number | Publication Date |
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| CN110277890A CN110277890A (en) | 2019-09-24 |
| CN110277890B true CN110277890B (en) | 2020-09-18 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201910479116.0A Expired - Fee Related CN110277890B (en) | 2019-06-04 | 2019-06-04 | Vibration motor |
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Families Citing this family (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021000090A1 (en) * | 2019-06-29 | 2021-01-07 | 瑞声声学科技(深圳)有限公司 | Vibration electric motor |
| WO2021000087A1 (en) * | 2019-06-29 | 2021-01-07 | 瑞声声学科技(深圳)有限公司 | Vibration motor |
| CN110932515A (en) * | 2019-12-26 | 2020-03-27 | 浙江省东阳市东磁诚基电子有限公司 | Horizontal linear motor structure and implementation method thereof |
| WO2021134313A1 (en) * | 2019-12-30 | 2021-07-08 | 瑞声声学科技(深圳)有限公司 | Linear motor |
| CN111211661B (en) * | 2020-02-25 | 2021-06-11 | 瑞声光电科技(常州)有限公司 | Linear vibration motor |
| CN111463987B (en) * | 2020-05-11 | 2021-09-14 | 浙江省东阳市东磁诚基电子有限公司 | Multidirectional vibration motor and implementation method thereof |
| CN111641314B (en) * | 2020-06-30 | 2022-10-28 | 歌尔股份有限公司 | Vibration device and electronic apparatus |
| CN111641312B (en) * | 2020-06-30 | 2022-10-28 | 歌尔股份有限公司 | Vibration device and electronic apparatus |
| CN113410969B (en) * | 2021-07-19 | 2023-01-20 | 歌尔股份有限公司 | Vibration motor |
| CN114221511B (en) * | 2021-12-13 | 2023-07-14 | 歌尔股份有限公司 | Vibrating device and electronic product |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| JP2017074584A (en) * | 2015-10-15 | 2017-04-20 | エーエーシー テクノロジーズ ピーティーイー リミテッドＡａｃ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｐｔｅ．Ｌｔｄ． | Double resonance vibration motor |
| CN106817006A (en) * | 2017-01-20 | 2017-06-09 | 瑞声科技(新加坡)有限公司 | Vibrating motor |
| CN106817005A (en) * | 2017-01-20 | 2017-06-09 | 瑞声科技(新加坡)有限公司 | Vibrating motor |
| CN106877616A (en) * | 2017-01-20 | 2017-06-20 | 瑞声科技(新加坡)有限公司 | Vibrating motor |
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2019
- 2019-06-04 CN CN201910479116.0A patent/CN110277890B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2017074584A (en) * | 2015-10-15 | 2017-04-20 | エーエーシー テクノロジーズ ピーティーイー リミテッドＡａｃ Ｔｅｃｈｎｏｌｏｇｉｅｓ Ｐｔｅ．Ｌｔｄ． | Double resonance vibration motor |
| CN106817006A (en) * | 2017-01-20 | 2017-06-09 | 瑞声科技(新加坡)有限公司 | Vibrating motor |
| CN106817005A (en) * | 2017-01-20 | 2017-06-09 | 瑞声科技(新加坡)有限公司 | Vibrating motor |
| CN106877616A (en) * | 2017-01-20 | 2017-06-20 | 瑞声科技(新加坡)有限公司 | Vibrating motor |
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