CN117118183B - Vibration motor - Google Patents
Vibration motor Download PDFInfo
- Publication number
- CN117118183B CN117118183B CN202311352023.4A CN202311352023A CN117118183B CN 117118183 B CN117118183 B CN 117118183B CN 202311352023 A CN202311352023 A CN 202311352023A CN 117118183 B CN117118183 B CN 117118183B
- Authority
- CN
- China
- Prior art keywords
- magnetizer
- coil
- magnetic
- magnetic steel
- vibrator assembly
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000004020 conductor Substances 0.000 claims abstract description 46
- 229910000831 Steel Inorganic materials 0.000 claims abstract description 35
- 239000010959 steel Substances 0.000 claims abstract description 35
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical compound [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims description 20
- 229910000531 Co alloy Inorganic materials 0.000 claims description 6
- 229910001030 Iron–nickel alloy Inorganic materials 0.000 claims description 6
- 229910001209 Low-carbon steel Inorganic materials 0.000 claims description 6
- QVYYOKWPCQYKEY-UHFFFAOYSA-N [Fe].[Co] Chemical compound [Fe].[Co] QVYYOKWPCQYKEY-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052742 iron Inorganic materials 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 5
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 4
- 239000010949 copper Substances 0.000 claims description 4
- 229910052802 copper Inorganic materials 0.000 claims description 4
- 238000001125 extrusion Methods 0.000 claims description 3
- 230000004308 accommodation Effects 0.000 description 2
- 238000005266 casting Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 2
- 229910000838 Al alloy Inorganic materials 0.000 description 1
- 229910000881 Cu alloy Inorganic materials 0.000 description 1
- KGWWEXORQXHJJQ-UHFFFAOYSA-N [Fe].[Co].[Ni] Chemical compound [Fe].[Co].[Ni] KGWWEXORQXHJJQ-UHFFFAOYSA-N 0.000 description 1
- JRBRVDCKNXZZGH-UHFFFAOYSA-N alumane;copper Chemical compound [AlH3].[Cu] JRBRVDCKNXZZGH-UHFFFAOYSA-N 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- GOECOOJIPSGIIV-UHFFFAOYSA-N copper iron nickel Chemical compound [Fe].[Ni].[Cu] GOECOOJIPSGIIV-UHFFFAOYSA-N 0.000 description 1
- 239000011810 insulating material Substances 0.000 description 1
- 239000000696 magnetic material Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000004088 simulation Methods 0.000 description 1
- 238000004804 winding Methods 0.000 description 1
Classifications
-
- 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
- H02K33/18—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
Abstract
The invention provides a vibrating motor, which comprises a shell with an accommodating space, a stator assembly and a vibrator assembly, wherein the stator assembly and the vibrator assembly are accommodated in the accommodating space, one of the stator assembly and the vibrator assembly comprises magnetic steel, the other one of the stator assembly and the vibrator assembly comprises coils which are arranged corresponding to the magnetic steel, the coils and the magnetic steel interact to provide driving force for the vibrator assembly, the coils are wound by leads, the vibrating motor also comprises a magnetizer which is positioned in a magnetic field of the magnetic steel, the magnetizer is made of a magnetic conductive material, and the magnetizer is arranged in or between leads. The magnetic conductive material is magnetized in the magnetic field provided by the magnetic steel, so that the magnetic field intensity around the coil is increased, the driving force generated by the coil is larger, and the vibration performance of the vibration motor is greatly improved.
Description
Technical Field
The invention belongs to the technical field of vibration motors, and particularly relates to a vibration motor.
Background
For devices that generate vibrations by receiving electromagnetic force in a magnetic field by an energized coil (such as a mobile phone vibration motor), the stronger the magnetic field around the energized coil, the greater the driving force generated.
In the related art, a vibration motor includes a magnetic steel for providing a stable magnetic field and a coil for generating a driving force in the magnetic field provided by the magnetic steel to vibrate. However, since the internal space of the vibration motor is small, the size of the magnetic steel is small, the strength of the magnetic field generated by the magnetic steel is low, and the driving force generated when the coil is electrified is small, so that the vibration feeling of the vibration motor is weak.
Accordingly, there is a need to provide a new vibration motor to solve the above-mentioned drawbacks.
Disclosure of Invention
The invention aims to provide a vibrating motor, which can solve the technical problem that the driving force generated when a coil is electrified is smaller due to lower magnetic field strength generated by magnetic steel in the vibrating motor in the related art.
The technical scheme of the invention is as follows:
the utility model provides a vibrating motor, includes the casing that has accommodation space, and accept in stator module and the oscillator subassembly in accommodation space, one of stator module with the oscillator subassembly includes magnet steel, another one include with the magnet steel corresponds the coil that sets up, the coil with magnet steel interact is the oscillator subassembly provides the drive power, the coil is by the wire coiling forms, vibrating motor still includes the magnetizer that is located in the magnetic field of magnet steel, the magnetizer is made by magnetic conduction material, just the magnetizer is located in the wire or between the wire.
Optionally, the magnetizer is arranged in the conducting wire, the conducting wire comprises a conductive conductor and an insulating layer coated on the outer side of the conductive conductor, and the insulating layer is further coated on the outer side of the magnetizer.
Optionally, the magnetizer is an axial core of the conductor, and the conductor is wrapped outside the magnetizer.
Optionally, the magnetizer is disposed between the conductor and the insulating layer, the magnetizer is wrapped on the outer side of the conductor, and the insulating layer is wrapped on the outer side of the magnetizer.
Optionally, the coil includes a plurality of layers of wires stacked in a thickness direction thereof, and the magnetizer is disposed between the wires of two adjacent layers.
Optionally, the volume of the magnetizer is 1% -95% of the volume of the coil.
Optionally, the magnetically permeable material comprises at least one of pure iron, mild steel, iron-nickel alloy, iron-cobalt alloy, copper, and aluminum.
Optionally, the vibrator assembly further comprises an iron core supporting the coil, and the wire is wound on the iron core to form the coil.
The invention has the beneficial effects that: the magnetic conductive material is magnetized in the magnetic field provided by the magnetic steel, so that the magnetic field intensity around the coil is increased, the driving force generated by the coil is larger, and the performance of the vibration motor is greatly improved.
Drawings
Fig. 1 is an exploded view of a vibrator assembly of a vibration motor according to an embodiment of the present invention, which does not include an iron core;
FIG. 2 is a cross-sectional view of a vibrating motor according to an embodiment of the present invention, wherein an electrical conductor is wrapped around a magnetizer;
FIG. 3 is a cross-sectional view of a vibrating motor according to an embodiment of the present invention, wherein a conductive body is wrapped around an outer side of a conductive body;
FIG. 4 is a cross-sectional view of a vibrating motor according to an embodiment of the present invention, wherein a magnetizer is disposed between wires;
fig. 5 is a top view of a vibrator assembly including an iron core in a vibration motor according to an embodiment of the present invention;
FIG. 6 is a cross-sectional view of a vibrating motor with a magnetizer disposed in a wire according to an embodiment of the present invention;
FIG. 7 is a schematic diagram of a magnetic field distribution of a coil provided with a magnetizer according to an embodiment of the present invention;
fig. 8 is a schematic diagram of magnetic field distribution of a coil provided in an embodiment of the present invention without a magnetizer.
The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.
Detailed Description
The invention will be further described with reference to the drawings and embodiments.
Referring to fig. 1 to 6, an embodiment of the present invention provides a vibration motor 100, which includes a housing 1 having an accommodating space, and a stator assembly 20 and a vibrator assembly 30 accommodated in the accommodating space, wherein one of the stator assembly 20 and the vibrator assembly 30 includes a magnetic steel 2, the other includes a coil 3 disposed corresponding to the magnetic steel 2, and the coil 3 interacts with the magnetic steel 2 to provide driving force for the vibrator assembly 30; in this embodiment, the stator assembly 20 includes a magnetic steel 2 fixed to the housing 1, the vibrator assembly 30 includes a coil 3 elastically connected to the housing 1, the coil 3 generates driving force in a magnetic field provided by the magnetic steel 2 to vibrate when the coil 3 is energized, the coil 3 is wound by a wire 31, the vibration motor 100 further includes a magnetizer 5 fixed to the coil 3, the magnetizer 5 is made of a magnetically conductive material, and the magnetizer 5 is disposed in the wire 31 or between the wires 31.
The magnetic conductive material is magnetized in the magnetic field provided by the magnetic steel 2, so that the magnetic field intensity around the coil 3 is increased, the driving force generated when the coil 3 is electrified is larger, and the performance (such as the response speed, the vibration sense and the like of the vibration motor) of the vibration motor is greatly improved.
In other embodiments, the vibrator assembly 30 includes the magnetic steel 2 fixed to the housing 1, and the stator assembly 20 includes the coil 3 elastically connected to the housing 1.
The magnetic conductive material comprises at least one of pure iron, low carbon steel, iron-nickel alloy, iron-cobalt alloy, copper and aluminum, namely, the magnetic conductive material can be either soft magnetic material or conductive material, so that the magnetic conductor 5 can participate in conduction. For example, the magnetic conductive material may be any of pure iron, low carbon steel, iron-nickel alloy, iron-cobalt alloy, copper and aluminum, or may be iron-nickel-cobalt alloy, copper-aluminum alloy, iron-nickel-copper alloy, or the like.
Referring to fig. 1, in some embodiments, the vibration motor 100 further includes a first elastic support 6 and a second elastic support 7 that are accommodated in the accommodating space and respectively connected to two ends of the housing 1, and two ends of the coil 3 are respectively connected to the first elastic support 6 and the second elastic support 7, so that the coil 3 can vibrate left and right. The housing 1 includes an upper case 11 having an accommodating space, and a bottom cover 12 fixed to one end of the upper case 11 and covering the accommodating space, and the magnetic steel 2 is fixed to the bottom cover 12.
Referring to fig. 5, in some embodiments, the vibrator assembly 30 further includes an iron core 4 with two ends respectively elastically connected to the housing 1, and the coil 3 is sleeved and fixed on the outer side of the iron core 4, that is, the wire 31 is wound around the iron core 4 to form the coil 3; the two magnetic steels 2 are arranged, and the coil 3 is arranged between the two magnetic steels 2.
Referring to fig. 2 and 3, the magnetic conductor 5 is disposed in the conductive wire 31, the conductive wire 31 includes a conductive body 311 and an insulating layer 312 coated on the outer side of the conductive body 311, and the insulating layer 312 is further coated on the outer side of the magnetic conductor 5, wherein the magnetic conductor 5 is disposed in the conductive body 311, or the magnetic conductor 5 is disposed between the conductive body 311 and the insulating layer 312, so as to form the magnetic conductor 5 disposed in the conductive wire 31. Since the magnetizer 5 is arranged in the lead wire 31, the winding of the subsequent lead wire 31 is not interfered, thereby facilitating the forming of the coil 3.
Referring to fig. 2, the magnetic conductor 5 is disposed in the conductive body 311, the magnetic conductor 5 is an axial core of the conductive body 311, and the conductive body 311 is wrapped on the outer side of the magnetic conductor 5, so as to avoid the diameter of the conductive wire 31 from being enlarged due to the arrangement of the magnetic conductor 5. Specifically, the fixing between the magnetizer 5 and the conductor 311 may be formed by integral casting, or a mounting hole (not shown) may be provided in the conductor 311, and the magnetizer 5 may be mounted in the mounting hole. The magnetizer 5 is electrically connected with the conductor 311, that is, the magnetizer 5 participates in electric conduction, for example, the magnetizer 5 can be low carbon steel, iron-nickel alloy, iron-cobalt alloy, and the like. The magnetizer 5 may be disposed at any position in the conductor 311 according to actual needs, for example, in a region of the conductor 311 that is far to the left, a region of the conductor that is far to the upper, and so on.
Referring to fig. 3, the magnetizer 5 is disposed between the conductor 311 and the insulating layer 312, the magnetizer 5 is wrapped on the outer side of the conductor 311, and the insulating layer 312 is wrapped on the outer side of the magnetizer 5. Specifically, the fixing between the magnetizer 5 and the conductor 311 may be formed by integral casting, or a mounting hole (not shown) may be provided in the magnetizer 5, and the conductor 311 may be mounted in the mounting hole. The magnetic conductive material may be pure iron, low carbon steel, iron-nickel alloy, aluminum, etc., that is, the magnetic conductive body 5 is electrically connected with the electric conductor 311.
When the magnetizer 5 is disposed in the conductive wire 31, the magnetizer 5 may be disposed in the insulating layer 312, and the magnetizer 5 is not in contact with the conductive body 311 at this time, that is, the magnetizer 5 is electrically insulated from the conductive body 311, and the magnetizer 5 does not participate in conduction; wherein, the magnetizer 5 is in a granular shape, and the magnetizer 5 can be arranged in the insulating layer 312 by adding a magnetic conductive material into the insulating material in a molten state in the forming process of the insulating layer 312.
Referring to fig. 4, in some embodiments, the coil 3 includes a plurality of wires 31 stacked along a thickness direction thereof, and the magnetizer 5 is disposed between two adjacent layers of wires 31, so as to form the magnetizer 5 disposed between the wires 31, so that the magnetizer 5 is disposed on the coil 3 in a relatively simple manner. Wherein, the magnetizer 5 is not contacted with the conductor 311, and the magnetizer 5 does not participate in conduction; the magnetizer 5 can be pressed and fixed between two adjacent turns of wires 31 of the coil 3, and can also be fixed by bonding. Specifically, when the magnetizer 5 is fixed by means of extrusion between two adjacent turns of the wires 31 of the coil 3, the magnetizer 5 can be columnar, and when the coil 3 is sleeved on the iron core 4, the magnetizer 5 can also be arranged at the innermost layer of the coil 3; when the magnetic conductor 5 is fixed by adhesion, the magnetic conductor 5 may be in the form of particles, and the magnetic conductor 5 may be fixed by adhesion to the innermost and outermost layers of the coil 3.
In some embodiments, the volume of the magnetic conductor 5 is 1% -95%, e.g., 1%, 10%, 30%, 45%, 80%, 95%, etc., of the volume of the coil 3.
The following is an example of analysis of the vibration motor 100 in which the coil 3 is fixed with the magnetizer 5 and the coil 3 is not provided with the magnetizer 5:
example 1:
in this example, as shown in fig. 1, the coil 3 is disposed at one side of the magnetic steel 2, for example, the magnetic steel 2 is disposed below the coil 3, and the magnetic steel 2 is a permanent magnet to provide a stable magnetic field; when the coil 3 is energized, a driving force is generated in the magnetic field provided by the magnetic steel 2 to vibrate.
Specifically, for the vibration motor 100 in which the magnetizer 5 is fixed to the coil 3, the magnitude of the driving force generated when the coil 3 is energized is 0.426N; for the vibration motor 100 in which the coil 3 is not provided with the magnetizer 5, the driving force generated when the coil 3 is electrified is 0.3N, that is, the driving force is improved by 42% compared with the case that the coil 3 of the vibration motor 100 is fixed with the magnetizer 5 and the coil 3 is not provided with the magnetizer 5.
Example 2:
in this example, as shown in fig. 5, the coil 3 is disposed between two magnetic steels 2, both of which are permanent magnets and collectively provide a stable magnetic field, and when the coil 3 is energized, a driving force is generated in the magnetic field commonly provided by both of the magnetic steels 2 to vibrate.
Specifically, for the vibration motor 100 in which the magnetizer 5 is fixed to the coil 3, the driving force generated when the coil 3 is energized is 1.1175N; for the vibration motor 100 in which the coil 3 is not provided with the magnetizer 5, the driving force generated when the coil 3 is electrified is 0.75N, that is, the driving force is improved by 49% compared with the case that the coil 3 of the vibration motor 100 is fixed with the magnetizer 5 and the coil 3 is not provided with the magnetizer 5.
In order to further understand the influence of the magnetic field intensity caused by the fixed magnetizer 5 of the coil 3 and the fact that the magnetizer 5 is not arranged on the coil 3, simulation analysis is also performed. As shown in fig. 7, the conductive wire 31 of the inner layer of the coil 3 is provided with a magnetizer 5, and the conductive wire 31 of the outer layer is made of high-conductivity material; as shown in fig. 8, the wires 31 on the inner and outer layers of the coil 3 are made of high conductivity materials, and comparing fig. 7 and 8, the magnetizer 5 arranged in the coil 3 can gather the magnetic field, so that the magnetic field strength around the wires 31 is improved, and the driving force generated when the coil 3 is electrified is improved.
While the invention has been described with respect to the above embodiments, it should be noted that modifications can be made by those skilled in the art without departing from the inventive concept, and these are all within the scope of the invention.
Claims (4)
1. The vibrating motor comprises a shell with an accommodating space, and a stator assembly and a vibrator assembly which are accommodated in the accommodating space, wherein one of the stator assembly and the vibrator assembly comprises magnetic steel, the other one of the stator assembly and the vibrator assembly comprises coils which are arranged corresponding to the magnetic steel, the coils and the magnetic steel interact to provide driving force for the vibrator assembly, and the coils are wound by leads, and the vibrating motor is characterized by further comprising a magnetizer which is positioned in the magnetic field of the magnetic steel, the magnetizer is made of a magnetic conductive material, the coils comprise a plurality of layers of leads which are stacked along the thickness direction of the magnetizer, the magnetizer is arranged between the leads of two adjacent layers, and the magnetizer is fixed through extrusion or adhesion between the leads of the two adjacent layers;
the magnetizer is columnar when being fixed through extrusion, and two adjacent wires of the same circle layer are arranged at high and low; the magnetizer is granular when fixed by bonding.
2. The vibration motor of claim 1, wherein the volume of the magnetic conductor is 1% -95% of the volume of the coil.
3. The vibratory motor of claim 1 wherein the magnetically permeable material comprises at least one of pure iron, mild steel, iron-nickel alloy, iron-cobalt alloy, copper, and aluminum.
4. The vibration motor of claim 1, wherein the vibrator assembly further comprises an iron core supporting the coil, the wire being wound around the iron core to form the coil.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311352023.4A CN117118183B (en) | 2023-10-19 | 2023-10-19 | Vibration motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311352023.4A CN117118183B (en) | 2023-10-19 | 2023-10-19 | Vibration motor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117118183A CN117118183A (en) | 2023-11-24 |
| CN117118183B true CN117118183B (en) | 2024-03-15 |
Family
ID=88813132
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311352023.4A Active CN117118183B (en) | 2023-10-19 | 2023-10-19 | Vibration motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117118183B (en) |
Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4381875A (en) * | 1982-03-31 | 1983-05-03 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Magnetic bearing and motor |
| JP2002336216A (en) * | 2001-03-16 | 2002-11-26 | Hitachi Medical Corp | Open type magnetic resonance imaging apparatus |
| CN101206951A (en) * | 2007-11-16 | 2008-06-25 | 介国安 | Energy-saving current transformer |
| CN105163246A (en) * | 2015-08-12 | 2015-12-16 | 歌尔声学股份有限公司 | Voice coil wire, voice coil made of voice coil wire, loudspeaker and vibration motor |
| CN205198705U (en) * | 2015-10-23 | 2016-05-04 | 江苏海明医疗器械有限公司 | Radiation therapy analog machine image " S " distortion automatic correction of device |
| CN105703593A (en) * | 2015-09-23 | 2016-06-22 | 歌尔声学股份有限公司 | Linear vibration motor |
| US10018686B1 (en) * | 2015-10-21 | 2018-07-10 | The Charles Stark Draper Laboratory, Inc. | Ultra-low noise sensor for magnetic fields |
| CN110957881A (en) * | 2019-12-26 | 2020-04-03 | 浙江省东阳市东磁诚基电子有限公司 | Low-magnetic-leakage horizontal linear motor and implementation method thereof |
| WO2021174560A1 (en) * | 2020-03-02 | 2021-09-10 | 瑞声声学科技(深圳)有限公司 | Linear motor |
| CN215580855U (en) * | 2021-08-27 | 2022-01-18 | 四川安和精密电子电器股份有限公司 | Y-direction linear vibration motor |
| CN114171293A (en) * | 2020-09-10 | 2022-03-11 | 北京小米移动软件有限公司 | Coil assembly and terminal |
| WO2022135125A1 (en) * | 2020-12-24 | 2022-06-30 | 歌尔股份有限公司 | Loudspeaker module and electronic device |
-
2023
- 2023-10-19 CN CN202311352023.4A patent/CN117118183B/en active Active
Patent Citations (12)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4381875A (en) * | 1982-03-31 | 1983-05-03 | The United States Of America As Represented By The Administrator Of The National Aeronautics And Space Administration | Magnetic bearing and motor |
| JP2002336216A (en) * | 2001-03-16 | 2002-11-26 | Hitachi Medical Corp | Open type magnetic resonance imaging apparatus |
| CN101206951A (en) * | 2007-11-16 | 2008-06-25 | 介国安 | Energy-saving current transformer |
| CN105163246A (en) * | 2015-08-12 | 2015-12-16 | 歌尔声学股份有限公司 | Voice coil wire, voice coil made of voice coil wire, loudspeaker and vibration motor |
| CN105703593A (en) * | 2015-09-23 | 2016-06-22 | 歌尔声学股份有限公司 | Linear vibration motor |
| US10018686B1 (en) * | 2015-10-21 | 2018-07-10 | The Charles Stark Draper Laboratory, Inc. | Ultra-low noise sensor for magnetic fields |
| CN205198705U (en) * | 2015-10-23 | 2016-05-04 | 江苏海明医疗器械有限公司 | Radiation therapy analog machine image " S " distortion automatic correction of device |
| CN110957881A (en) * | 2019-12-26 | 2020-04-03 | 浙江省东阳市东磁诚基电子有限公司 | Low-magnetic-leakage horizontal linear motor and implementation method thereof |
| WO2021174560A1 (en) * | 2020-03-02 | 2021-09-10 | 瑞声声学科技(深圳)有限公司 | Linear motor |
| CN114171293A (en) * | 2020-09-10 | 2022-03-11 | 北京小米移动软件有限公司 | Coil assembly and terminal |
| WO2022135125A1 (en) * | 2020-12-24 | 2022-06-30 | 歌尔股份有限公司 | Loudspeaker module and electronic device |
| CN215580855U (en) * | 2021-08-27 | 2022-01-18 | 四川安和精密电子电器股份有限公司 | Y-direction linear vibration motor |
Non-Patent Citations (1)
| Title |
|---|
| 影响电磁线圈炮的磁场强度的因素的研究;李守智;张一博;;中国新技术新产品(第13期);第23页 * |
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| Publication number | Publication date |
|---|---|
| CN117118183A (en) | 2023-11-24 |
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