CN111031466A - Method for manufacturing magnetic circuit system - Google Patents
Method for manufacturing magnetic circuit system Download PDFInfo
- Publication number
- CN111031466A CN111031466A CN201911263759.8A CN201911263759A CN111031466A CN 111031466 A CN111031466 A CN 111031466A CN 201911263759 A CN201911263759 A CN 201911263759A CN 111031466 A CN111031466 A CN 111031466A
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- Prior art keywords
- magnetic
- manufacturing
- circuit system
- powder metallurgy
- magnetic steel
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
Abstract
The invention provides a manufacturing method of a magnetic circuit system, which comprises the following steps: manufacturing one component of the first magnetic conduction plate and the magnetic steel by using a powder metallurgy process; and manufacturing the other component of the first magnetic conduction plate and the magnetic steel on the manufactured component by using a powder metallurgy process. Compared with the prior art, the manufacturing method of the magnetic circuit system provided by the invention has the advantages that the magnetic circuit system is manufactured by using a powder metallurgy process, so that the magnetic circuit system is integrated, the influence of glue on the performance of products is avoided, the manufactured magnetic circuit system is more excellent in size, free of assembly error and better in reliability.
Description
[ technical field ] A method for producing a semiconductor device
The invention relates to the field of acoustoelectric technology, in particular to a manufacturing method of a magnetic circuit system.
[ background of the invention ]
With the advent of the internet era, the number of mobile terminal devices has increased. Among the mobile devices, the mobile phone is undoubtedly the most common and portable mobile terminal device. Sound producing devices for playing sounds such as music are widely used in mobile terminal devices such as mobile phones, and magnetic circuit systems in the sound producing devices are particularly important and provide driving functions for the whole sound producing devices.
In the manufacturing method of the magnetic circuit system in the related art, the magnetic steel and the magnetic conductive plate are manufactured by using the traditional process, and then the magnetic steel and the magnetic conductive plate are assembled and combined into the magnetic circuit by using materials such as glue and the like.
However, in the related art, due to the assembling process, the magnetic circuit inevitably has assembling errors, and the magnetic circuit is of a micro-miniature structure, so the assembling errors can cause the size of the whole magnetic circuit to be poor.
Therefore, it is necessary to provide a new method for manufacturing a magnetic circuit system to solve the above problems.
[ summary of the invention ]
The invention aims to provide a method for manufacturing a magnetic circuit system with better size.
In order to achieve the above object, the present invention provides a method for manufacturing a magnetic circuit system, comprising the steps of:
manufacturing one component of the first magnetic conduction plate and the magnetic steel by using a powder metallurgy process;
and manufacturing the other component of the first magnetic conduction plate and the magnetic steel on the manufactured component by using a powder metallurgy process.
Preferably, the method comprises the steps of:
manufacturing the first magnetic conduction plate by using a powder metallurgy process;
and manufacturing the magnetic steel on the first magnetic conduction plate by using a powder metallurgy process.
Preferably, the magnetic steel comprises main magnetic steel and auxiliary magnetic steel arranged around the main magnetic steel.
Preferably, the method further comprises: and manufacturing a second magnetic conduction plate on one side of the magnetic steel, which is far away from the first magnetic conduction plate, by using a powder metallurgy process.
Preferably, the method comprises the steps of:
manufacturing the magnetic steel by using a powder metallurgy process;
and manufacturing the first magnetic conduction plate on one side of the magnetic steel by using a powder metallurgy process.
Preferably, the magnetic steel includes a main magnetic steel fixed to the first magnetic conductive plate and an auxiliary magnetic steel disposed around the main magnetic steel.
Preferably, the method further comprises: and manufacturing a second magnetic conduction plate on one side of the magnetic steel, which is far away from the first magnetic conduction plate, by using a powder metallurgy process.
Compared with the prior art, the manufacturing method of the magnetic circuit system provided by the invention has the advantages that the magnetic circuit system is manufactured by using a powder metallurgy process, so that the magnetic circuit system is integrated, the influence of glue on the performance of products is avoided, the manufactured magnetic circuit system is more excellent in size, free of assembly error and better in reliability.
[ description of the drawings ]
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments are briefly introduced below, 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 magnetic circuit system according to the present invention;
FIG. 2 is a schematic flow chart of a method for manufacturing a magnetic circuit system according to the present invention;
fig. 3 is a flow chart of a specific manufacturing method of the magnetic circuit system of the present invention;
fig. 4 is a flow chart of another specific manufacturing method of the magnetic circuit system of the present invention.
[ detailed description ] embodiments
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 and 2, the present invention provides a method for manufacturing a magnetic circuit system, which includes the following steps:
manufacturing one component of the first magnetic conduction plate and the magnetic steel by using a powder metallurgy process;
and manufacturing the other component of the first magnetic conduction plate and the magnetic steel on the manufactured component by using a powder metallurgy process.
The magnetic circuit system manufactured by the method has the advantages of better size, no assembly error and better reliability.
Specifically, referring to fig. 1 and fig. 3, the present invention provides a method for manufacturing a magnetic circuit system 100, which includes the following steps:
manufacturing a first magnetic conduction plate 1 by using a powder metallurgy process;
manufacturing magnetic steel 2 on the first magnetic conduction plate 1 by using a powder metallurgy process; specifically, when the magnetic steel 2 is manufactured, a main magnetic steel 21 and an auxiliary magnetic steel 22 arranged around the main magnetic steel 21 are manufactured on the first magnetic conduction plate 1 by using a powder metallurgy process.
Finally, a second magnetic conduction plate 3 is manufactured on one side, far away from the first magnetic conduction plate 1, of the magnetic steel 2 by using a powder metallurgy process; specifically, a second magnetic conductive plate 3 is formed on the main magnetic steel 21.
The magnetic circuit system 100 manufactured by the manufacturing method of the magnetic circuit system 100 is free from assembly, excellent in size and glue, avoids the influence of the glue on the performance of the magnetic circuit system 100, and is excellent in performance; of course, the second magnetic conduction plate may not be manufactured, and the magnetic circuit system is used in a sound production device without the second magnetic conduction plate.
Referring to fig. 1 and 4, the present invention further provides another method for manufacturing a magnetic circuit system 100, which is manufactured by using powder metallurgy, and the method comprises the following steps:
Manufacturing a first magnetic conduction plate 1 on one side of the magnetic steel 2 by using a powder metallurgy process; specifically, a powder metallurgy process is used to manufacture the first magnetic conduction plate 1 on the main magnetic steel 21 and the auxiliary magnetic steel 22.
Finally, a second magnetic conduction plate 3 is manufactured on one side of the magnetic steel 2 far away from the first magnetic conduction plate 1 by utilizing a powder metallurgy process; specifically, a second magnetic conductive plate 3 is formed on the main magnetic steel 21.
The magnetic circuit system 100 manufactured by the manufacturing method of the magnetic circuit system 100 is free from assembly, excellent in size and glue, avoids the influence of the glue on the performance of the magnetic circuit system 100, and is excellent in performance; of course, the second magnetic conduction plate may not be manufactured, and the magnetic circuit system is used in a sound production device without the second magnetic conduction plate.
The manufacturing method of the magnetic circuit system 100 of the present invention is not limited to the above method, and for example, the second magnetic conducting plate 3 may be manufactured first by using a powder metallurgy process, then the magnetic steel 2 is manufactured on the second magnetic conducting plate 3, and finally the first magnetic conducting plate 1 is manufactured on the side of the magnetic steel 2 away from the second magnetic conducting plate 13.
The manufacturing method of the magnetic circuit system 100 of the invention can also be used for manufacturing part of components according to the traditional process, and then manufacturing the rest components by using the powder metallurgy process in the form of inserts; for example, a powder metallurgy process is carried out on the first magnetic conduction plate manufactured by the traditional process to manufacture magnetic steel; or a powder metallurgy process is carried out on the magnetic steel manufactured by the traditional process to manufacture a first magnetic conduction plate; the two modes are feasible, the size of the manufactured magnetic circuit system is more excellent, and meanwhile, the traditional process is combined with the powder metallurgy process, so that the cost and the size can be considered.
Compared with the prior art, the manufacturing method of the magnetic circuit system provided by the invention has the advantages that the magnetic circuit system is manufactured by using powder metallurgy, so that the magnetic circuit system is integrated, the influence of glue on the performance of products is avoided, and the manufactured magnetic circuit system is more excellent in size, free of assembly error and better in reliability.
The present invention provides an embodiment of the present invention, which is not limited to the scope of the present invention, and all equivalent structures or equivalent flow transformations made by using the contents of the specification and the drawings, or applied directly or indirectly to other related technical fields, are included in the scope of the present invention.
Claims (7)
1. A method of manufacturing a magnetic circuit system, the method comprising the steps of:
manufacturing one component of the first magnetic conduction plate and the magnetic steel by using a powder metallurgy process;
and manufacturing the other component of the first magnetic conduction plate and the magnetic steel on the manufactured component by using a powder metallurgy process.
2. A method of manufacturing a magnetic circuit system according to claim 1, the method comprising the steps of:
manufacturing the first magnetic conduction plate by using a powder metallurgy process;
and manufacturing the magnetic steel on the first magnetic conduction plate by using a powder metallurgy process.
3. The method of claim 2, wherein the magnetic steel comprises a main magnetic steel and a sub magnetic steel surrounding the main magnetic steel.
4. The method of claim 2, further comprising: and manufacturing a second magnetic conduction plate on one side of the magnetic steel, which is far away from the first magnetic conduction plate, by using a powder metallurgy process.
5. A method of manufacturing a magnetic circuit system according to claim 1, the method comprising the steps of:
manufacturing the magnetic steel by using a powder metallurgy process;
and manufacturing the first magnetic conduction plate on one side of the magnetic steel by using a powder metallurgy process.
6. The method of claim 5, wherein the magnetic steel comprises a main magnetic steel fixed to the first magnetic conductive plate and a sub magnetic steel disposed around the main magnetic steel.
7. The method of claim 5, further comprising: and manufacturing a second magnetic conduction plate on one side of the magnetic steel, which is far away from the first magnetic conduction plate, by using a powder metallurgy process.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911263759.8A CN111031466A (en) | 2019-12-11 | 2019-12-11 | Method for manufacturing magnetic circuit system |
| PCT/CN2020/078087 WO2021114498A1 (en) | 2019-12-11 | 2020-03-06 | Method for manufacturing magnetic circuit system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911263759.8A CN111031466A (en) | 2019-12-11 | 2019-12-11 | Method for manufacturing magnetic circuit system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN111031466A true CN111031466A (en) | 2020-04-17 |
Family
ID=70205544
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911263759.8A Pending CN111031466A (en) | 2019-12-11 | 2019-12-11 | Method for manufacturing magnetic circuit system |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN111031466A (en) |
| WO (1) | WO2021114498A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021114124A1 (en) * | 2019-12-11 | 2021-06-17 | 瑞声声学科技(深圳)有限公司 | Method for fabricating magnetic circuit system |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04287498A (en) * | 1991-03-15 | 1992-10-13 | Yamaha Corp | Diaphragm for acoustic device |
| CN104205874A (en) * | 2012-03-19 | 2014-12-10 | 松下电器产业株式会社 | Magnetic circuit for loudspeaker, and loudspeaker using same |
| CN204887405U (en) * | 2015-07-28 | 2015-12-16 | 歌尔声学股份有限公司 | Loudspeaker |
| CN206775735U (en) * | 2017-05-26 | 2017-12-19 | 歌尔科技有限公司 | A kind of acoustical generator |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07176427A (en) * | 1993-11-10 | 1995-07-14 | Matsushita Electric Ind Co Ltd | Magnetic circuit unit for microspeaker and its production |
| CN104196647A (en) * | 2014-08-18 | 2014-12-10 | 宁波华斯特林电机制造有限公司 | High-accuracy magnetism conducting structure of Stirling circulator |
| CN108184196B (en) * | 2018-01-08 | 2024-04-09 | 深圳市韶音科技有限公司 | Bone conduction loudspeaker |
-
2019
- 2019-12-11 CN CN201911263759.8A patent/CN111031466A/en active Pending
-
2020
- 2020-03-06 WO PCT/CN2020/078087 patent/WO2021114498A1/en active Application Filing
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH04287498A (en) * | 1991-03-15 | 1992-10-13 | Yamaha Corp | Diaphragm for acoustic device |
| CN104205874A (en) * | 2012-03-19 | 2014-12-10 | 松下电器产业株式会社 | Magnetic circuit for loudspeaker, and loudspeaker using same |
| CN204887405U (en) * | 2015-07-28 | 2015-12-16 | 歌尔声学股份有限公司 | Loudspeaker |
| CN206775735U (en) * | 2017-05-26 | 2017-12-19 | 歌尔科技有限公司 | A kind of acoustical generator |
Non-Patent Citations (1)
| Title |
|---|
| 陈峻峰: "《永磁电机 上 永磁电机基础》", 31 March 1982 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2021114124A1 (en) * | 2019-12-11 | 2021-06-17 | 瑞声声学科技(深圳)有限公司 | Method for fabricating magnetic circuit system |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2021114498A1 (en) | 2021-06-17 |
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Application publication date: 20200417 |