WO2016206329A1 - 多磁路充磁工艺 - Google Patents
多磁路充磁工艺 Download PDFInfo
- Publication number
- WO2016206329A1 WO2016206329A1 PCT/CN2015/097966 CN2015097966W WO2016206329A1 WO 2016206329 A1 WO2016206329 A1 WO 2016206329A1 CN 2015097966 W CN2015097966 W CN 2015097966W WO 2016206329 A1 WO2016206329 A1 WO 2016206329A1
- Authority
- WO
- WIPO (PCT)
- Prior art keywords
- magnetic circuit
- unmagnetized
- magnetic
- magnetizing
- circuit 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.)
- Ceased
Links
Classifications
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/02—Details
- H04R9/025—Magnetic circuit
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F13/00—Apparatus or processes for magnetising or demagnetising
- H01F13/003—Methods and devices for magnetising permanent magnets
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F41/00—Apparatus or processes specially adapted for manufacturing or assembling magnets, inductances or transformers; Apparatus or processes specially adapted for manufacturing materials characterised by their magnetic properties
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01F—MAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
- H01F7/00—Magnets
- H01F7/06—Electromagnets; Actuators including electromagnets
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R31/00—Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R9/00—Transducers of moving-coil, moving-strip, or moving-wire type
- H04R9/06—Loudspeakers
-
- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
- H04R2209/00—Details of transducers of the moving-coil, moving-strip, or moving-wire type covered by H04R9/00 but not provided for in any of its subgroups
- H04R2209/024—Manufacturing aspects of the magnetic circuit of loudspeaker or microphone transducers
Definitions
- the invention relates to the technical field of electroacoustic products, in particular to a multi-magnetic circuit magnetizing process.
- Speakers are important acoustic components of portable electronic devices that are used to convert electrical and acoustic signals and are an energy conversion device.
- the existing speaker includes a vibration component and a magnetic circuit component.
- the magnetic circuit component mostly includes an inner magnetic circuit component and an outer magnetic circuit component, and the outer magnetic circuit component surrounds the outer circumference of the inner magnetic circuit component.
- the inner magnetic circuit assembly and the outer magnetic circuit assembly need to be magnetized, and the inner magnetic circuit assembly and the outer magnetic circuit assembly have opposite polarities.
- the process of magnetizing the magnetic circuit assembly of such a multi-magnetic circuit includes the following steps, see FIG. 1a, FIG. 1b and FIG. 1c:
- the unmagnetized inner magnetic circuit assembly 12 is magnetized by the inner magnetic path magnetizing coil 40, and after the magnetization is completed, the inner magnetic circuit assembly 10 having the upper end being the N pole and the lower end being the S pole is formed (only for the figure)
- the unmagnetized outer magnetic circuit assembly 22 is magnetized by the outer magnetic circuit magnetizing coil 50, and after the magnetization is completed, the outer magnetic circuit assembly 20 having the upper end being the S pole and the lower end being the N pole is formed;
- the inner magnetic circuit assembly 10 is fixed to the outer magnetic circuit assembly 20 by glue to form a finished magnetic circuit assembly 30.
- the adhesive with lower curing temperature is mostly smaller, can not meet the requirements of the product, and has a large adhesive force, and the type of glue available for low curing temperature is very small, and the price is also high, which improves the production of the product. cost;
- the technical problem to be solved by the present invention is to provide a multi-magnetic circuit magnetization process, which is simple and easy to operate, has many types of bonding glue selection, high production efficiency, and low production cost.
- the technical solution of the present invention is:
- a multi-magnetic circuit magnetization process comprising the steps of: S1, fixing an unmagnetized first magnetic circuit assembly on a second magnetic circuit assembly that is also unmagnetized, and assembling the unmagnetized magnetic circuit assembly; S2 And magnetizing the unmagnetized magnetic circuit component completed in the step S1.
- the first magnetic circuit magnetizing coil and the second magnetic circuit magnetizing coil are respectively used to respectively perform the unmagnetized first magnetic circuit component.
- the unmagnetized second magnetic circuit assembly performs magnetization, that is, the magnetization process of the multi-magnetic circuit is completed.
- the unmagnetic second magnetic circuit component is magnetized by the second magnetic circuit magnetizing coil, and after the second magnetic circuit component is magnetized, The first magnetic circuit magnetizing coil charges the unmagnetized first magnetic circuit component, that is, the magnetizing process of the multi-magnetic circuit is completed.
- the unmagnetized first magnetic circuit component is magnetized by the first magnetic circuit magnetizing coil, and after the first magnetic circuit component is magnetized,
- the second magnetic circuit magnetizing coil charges the unmagnetized second magnetic circuit component, that is, completes a magnetizing process of the multi-magnetic circuit; and magnetizes the un-magnetic second magnetic circuit component At this time, it is necessary to provide a magnetic shield member on each of the upper side and the lower side of the magnetized first magnetic circuit assembly.
- the unmagnetized first magnetic circuit assembly is fixed to the un-magnetic second magnetic circuit assembly by glue.
- the glue is one of polyurethane low temperature hot melt adhesive, EVA low temperature hot melt adhesive, anaerobic thermosetting adhesive or epoxy thermosetting adhesive.
- the multi-magnetic path magnetization process of the present invention first fixes the unmagnetized first magnetic circuit assembly on the second magnetic circuit assembly which is also unmagnetized, a magnetic circuit assembly is formed, and then the first magnetic circuit is used to magnetize the coil and The second magnetic circuit magnetizing coil respectively magnetizes the first magnetic circuit component and the second magnetic circuit component, and after the magnetization is completed, the magnetizing process of the multi-magnetic circuit is completed.
- the process of first assembling and then integrating magnetization has the following advantages compared with the prior art separately magnetizing and reassembling processes:
- the magnetization process is simpler and the magnetization efficiency is high;
- the first assembly (bonding and fixing between the first and second magnetic circuits) re-magnetization, the curing temperature of the glue will not affect the magnetic properties, so there are many types of glue selection, and some curing temperatures can be selected and bonded. Strong, low-cost glue.
- the multi-magnetic circuit magnetization process of the present invention solves the technical problems of complicated multi-magnetic path magnetization process and less types of glue available in the prior art, and the multi-magnetic circuit magnetization process of the invention is simple and the process operation is difficult. Low, a wide selection of glues and high production efficiency.
- 1a is a flow chart of a multi-magnetic circuit magnetization process in the prior art - the first step;
- Figure 1b is a flow chart of a multi-magnetic circuit magnetization process in the prior art - the second step;
- Figure 1c is a flow chart of a multi-magnetic circuit magnetization process in the prior art - the third step;
- FIG. 2a is a flow chart of the first embodiment of the multi-magnetic circuit magnetization process of the present invention - the first step;
- Figure 2b is a flow chart of the first embodiment of the multi-magnetic circuit magnetization process of the present invention - the second step;
- Figure 3a is a flow chart of the second embodiment of the multi-magnetic circuit magnetization process of the present invention - the first step;
- Figure 3b is a flow chart of the second embodiment of the multi-magnetic circuit magnetization process of the present invention - the second step;
- internal magnetic circuit assembly 12, unmagnetized internal magnetic circuit assembly, 20, external magnetic circuit assembly, 22, unmagnetic external magnetic circuit assembly, 30, finished magnetic circuit assembly, 32, unmagnetized magnetic Road components, 34, part of the magnetic circuit assembly, 40, internal magnetic circuit magnetization coil, 50, external magnetic circuit magnetization coil, 60, magnetic shielding components, 100, inner magnet, 102, Neihua, 104, outside Magnet, 106, Waihuasi, 108, magnetic conductive plate, 200, magnetic gap.
- a multi-magnetic circuit magnetization process includes the following steps:
- the unmagnetized first magnetic circuit assembly is fixed on the same unmagnetized second magnetic circuit assembly, and assembled into an unmagnetized magnetic circuit assembly;
- step S2 Magnetizing the unmagnetized magnetic circuit component completed in step S1.
- the first magnetic circuit magnetizing coil and the second magnetic circuit magnetizing coil are respectively used to uncharge the first magnetic circuit component and not charge.
- the magnetic second magnetic circuit assembly performs magnetization, that is, the magnetization process of the multi-magnetic circuit is completed.
- the multi-magnetic circuit component includes a dual magnetic circuit, a three magnetic circuit, a four magnetic circuit, etc., because the dual magnetic circuit is relatively common, the following is a detailed description of the multi-magnetic magnetic charging process of the present invention by taking a magnetic circuit assembly of a dual magnetic circuit as an example. set forth:
- the magnetic circuit assembly provided with the dual magnetic circuit includes an inner magnetic circuit composed of the inner magnet 100 and the inner washer 102, and an outer magnetic circuit composed of the outer magnet 104 and the outer washer 106. Both the road and the inner magnetic circuit are bonded and fixed to the magnetic conductive plate 108.
- the outer magnetic circuit surrounds the outer circumference of the inner magnetic circuit, and a gap is left between the inner magnetic circuit and the outer magnetic circuit. The gap is a magnetic gap 200.
- Embodiment 1 is a diagrammatic representation of Embodiment 1:
- a multi-magnetic circuit magnetization process includes the following steps:
- the unmagnetized inner magnetic circuit assembly 12 (first magnetic circuit assembly) is fixed by glue bonding to the central portion of the unmagnetized outer magnetic circuit assembly 22 (second magnetic circuit assembly), combined Into the unmagnetized magnetic circuit assembly 32.
- the glue can be selected from polyurethane low temperature hot melt adhesive, EVA low temperature hot melt adhesive (main component ethylene and vinyl acetate), anaerobic thermosetting adhesive or epoxy thermosetting adhesive, etc. These four kinds of glue are the preferred types of the embodiment, but Not limited to these four.
- the unmagnetized magnetic circuit assembly 32 is magnetized by a magnetizing device, the inner magnetic path magnetizing coil 40 is disposed in the magnetic gap 200, and the outer magnetic path magnetizing coil 50 is disposed in the unmagnetic magnetic circuit assembly. The outside of 32.
- the external magnetic circuit magnetizing coil 50 (the second magnetic circuit charging coil) is supplied with current, and the direction of the current is as shown in the figure, and the vertical direction of the current direction is outward. Representing the current direction vertical view facing inward, at this time, the inner magnetic path magnetizing coil 40 is not energized.
- the unmagnetized outer magnetic circuit assembly 22 is magnetized by the magnetic field generated by the outer magnetic path magnetizing coil 50 to form a magnetic body having an upper S pole and an N pole lower, and the magnetic circuit assembly becomes a partial charge. Magnetic magnetic circuit assembly 34.
- the external magnetic circuit charging coil 50 is powered off, and then the internal magnetic circuit magnetizing coil 40 (the first magnetic circuit magnetic winding coil) is turned on, and the inner magnetic circuit is magnetized.
- a current opposite to the direction of the current of the outer magnetic circuit magnetizing coil 50 is applied to magnetize the inner magnetic circuit component of the partial magnetizing magnetic circuit assembly 34.
- the magnetic field generated by the coil 40 is polarized to form a magnetic body having an upper N pole and an S pole at the lower side.
- the inner magnetic circuit magnetizing coil 40 is de-energized, that is, the magnetization process of the multi-magnetic circuit assembly is completed.
- a finished magnetic circuit assembly 30 having opposite inner and outer magnetic paths is formed.
- the external magnetic circuit component that is first magnetized is located outside the magnetic field generated by the inner magnetic circuit magnetizing coil 40, so that the magnetization of the inner magnetic circuit does not affect the magnetized external magnetic circuit.
- the polarity of the path assembly 30 is stable and the magnetization process is simple and easy to operate.
- Embodiment 2 is a diagrammatic representation of Embodiment 1:
- This embodiment is basically the same as the first embodiment, and the difference is that:
- the first step (see Fig. 3a) is the same as the first step of the first embodiment and will not be described in detail herein.
- the power supply of the inner magnetic circuit magnetizing coil 40 is turned on, at which time the outer magnetic circuit magnetizing coil 50 is not energized.
- the direction of current passing through the inner magnetic path magnetizing coil 40 is as shown in Fig. 3b.
- the inner magnetic circuit component is magnetized by the magnetic field generated by the inner magnetic circuit magnetizing coil 40, and the upper side is N pole. The bottom is the S pole.
- the power supply of the inner magnetic circuit magnetizing coil 40 is disconnected, and the outer magnetic circuit magnetizing coil 50 is energized, and the current direction of the outer magnetic circuit magnetizing coil 50 and the inner magnetic circuit magnetizing coil The current passing through 40 is in the opposite direction. Since the inner magnetic circuit component and the outer magnetic circuit component are both in the magnetic field generated by the outer magnetic path magnetizing coil 50, the inner magnetic circuit component that has been magnetized is not affected by the magnetic field generated by the outer magnetic path magnetizing coil 50, thereby ensuring The polarity is constant, so it is necessary to provide a magnetic shield member 60 above and below the magnetized inner magnetic circuit assembly to protect the polarity of the inner magnetic circuit from being affected.
- the outer magnetic circuit component is magnetized by the magnetic field generated by the outer magnetic path magnetizing coil 50, and the upper side is the S pole and the lower side is the N pole, and the polarity of the inner magnetic circuit component is opposite to form the finished magnetic circuit component 30, thus completing Magnetization process of multi-magnetic circuit components.
- the current directions of the inner magnetic path magnetizing coil 40 and the outer magnetic circuit magnetizing coil 50 in the above two embodiments are only an example, and the actual application is not based on this, as long as the two are The current can be reversed.
- the above two embodiments only illustrate the multi-magnetic circuit magnetization process of the present invention by taking the magnetic circuit component of the dual magnetic circuit as an example.
- the magnetic circuit component of the multi-magnetic circuit further includes three magnetic circuits and four magnetic circuits.
- the person skilled in the art can realize the integrated magnetization of the multi-magnetic circuit components such as the magnetic circuit component of the three magnetic circuit and the magnetic circuit component of the four magnetic circuit without any creative labor.
- Specific embodiments of the magnetization process for the magnetic circuit components of other multi-magnetic circuits are not described in detail herein.
- the multi-magnetic circuit magnetizing process of the invention firstly bonds the inner and outer magnetic circuit components together, and then is integrally magnetized by the magnetizing device, thereby effectively simplifying the magnetizing process of the multi-magnetic circuit and reducing the operation of the process. Difficulty, and there are many types of glue available, high production efficiency and low production cost.
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Power Engineering (AREA)
- Acoustics & Sound (AREA)
- Signal Processing (AREA)
- Manufacturing & Machinery (AREA)
- Electromagnetism (AREA)
- Audible-Bandwidth Dynamoelectric Transducers Other Than Pickups (AREA)
- Measuring Magnetic Variables (AREA)
Abstract
Description
Claims (5)
- 一种多磁路充磁工艺,其特征在于,包括如下步骤:S1、将未充磁的第一磁路组件固定在同样未充磁的第二磁路组件上,组装成未充磁的磁路组件;S2、对所述步骤S1完成的未充磁的磁路组件进行充磁,此步骤中采用第一磁路充磁线圈及第二磁路充磁线圈分别对所述未充磁第一磁路组件及所述未充磁第二磁路组件进行充磁,即完成了多磁路的充磁工艺。
- 根据权利要求1所述的多磁路充磁工艺,其特征在于,所述步骤S2中先通过所述第二磁路充磁线圈对所述未充磁第二磁路组件进行充磁,第二磁路组件充磁完毕后,再通过所述第一磁路充磁线圈对所述未充磁第一磁路组件进行充磁,即完成了多磁路的充磁工艺。
- 根据权利要求1所述的多磁路充磁工艺,其特征在于,所述步骤S2中先通过所述第一磁路充磁线圈对所述未充磁第一磁路组件进行充磁,第一磁路组件充磁完毕后,再通过所述第二磁路充磁线圈对所述未充磁第二磁路组件进行充磁,即完成了多磁路的充磁工艺;在对所述未充磁第二磁路组件进行充磁时,需要在已充磁的所述第一磁路组件的上侧及下侧各设置一磁屏蔽部件。
- 根据权利要求2或3所述的多磁路充磁工艺,其特征在于,所述未充磁第一磁路组件通过胶水固定在所述未充磁第二磁路组件上。
- 根据权利要求4所述的多磁路充磁工艺,其特征在于,所述胶水为聚氨酯低温热熔胶、EVA低温热熔胶、厌氧热固胶或环氧热固胶中的一种。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US15/577,246 US10225660B2 (en) | 2015-06-23 | 2015-12-18 | Process for magnetizing multiple magnetic circuits |
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510351273.5 | 2015-06-23 | ||
| CN201510351273.5A CN105006334B (zh) | 2015-06-23 | 2015-06-23 | 多磁路充磁工艺 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| WO2016206329A1 true WO2016206329A1 (zh) | 2016-12-29 |
Family
ID=54378968
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| PCT/CN2015/097966 Ceased WO2016206329A1 (zh) | 2015-06-23 | 2015-12-18 | 多磁路充磁工艺 |
Country Status (3)
| Country | Link |
|---|---|
| US (1) | US10225660B2 (zh) |
| CN (1) | CN105006334B (zh) |
| WO (1) | WO2016206329A1 (zh) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105006334B (zh) | 2015-06-23 | 2017-08-18 | 歌尔股份有限公司 | 多磁路充磁工艺 |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102204278A (zh) * | 2009-07-27 | 2011-09-28 | 中井重之 | 动磁铁式扬声器及其制造方法 |
| CN203840532U (zh) * | 2014-04-30 | 2014-09-17 | 江苏裕成电子有限公司 | 三磁路扬声器 |
| CN203851286U (zh) * | 2014-03-31 | 2014-09-24 | 歌尔声学股份有限公司 | 扬声器 |
| CN204031439U (zh) * | 2014-05-26 | 2014-12-17 | 深圳市冠旭电子有限公司 | 扬声器 |
| US20150139479A1 (en) * | 2013-11-15 | 2015-05-21 | Merry Electronics (Suzhou) Co., Ltd. | Magnetic circuit and coaxial speaker using the same |
| CN105006334A (zh) * | 2015-06-23 | 2015-10-28 | 歌尔声学股份有限公司 | 多磁路充磁工艺 |
Family Cites Families (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3891046B2 (ja) * | 2002-06-07 | 2007-03-07 | 松下電器産業株式会社 | 反撥磁気回路の製造方法及びこの製造方法に用いられる製造装置 |
| JP4878226B2 (ja) * | 2006-06-26 | 2012-02-15 | キヤノン株式会社 | 駆動装置 |
| US7848536B2 (en) * | 2007-11-02 | 2010-12-07 | Onkyo Corporation | Voice coil assembly, loudspeaker using the same, and method for producing the same |
| JP5275840B2 (ja) * | 2009-02-10 | 2013-08-28 | Ntn株式会社 | 磁気エンコーダ等の多極磁化環状体の着磁方法および着磁装置 |
| US9257219B2 (en) * | 2012-08-06 | 2016-02-09 | Correlated Magnetics Research, Llc. | System and method for magnetization |
| EP2323242A1 (en) * | 2009-11-13 | 2011-05-18 | ABUS August Bremicker Söhne KG | Generator for a bicycle wheel |
| CN204305346U (zh) * | 2014-12-22 | 2015-04-29 | 东莞志丰电子有限公司 | 一种磁路装置及其动圈式发声器件 |
| CN104602177B (zh) * | 2014-12-31 | 2018-07-13 | 东莞市纳声电子设备科技有限公司 | 一种新型扬声器多磁路自动化设备及其生产方法 |
-
2015
- 2015-06-23 CN CN201510351273.5A patent/CN105006334B/zh active Active
- 2015-12-18 US US15/577,246 patent/US10225660B2/en active Active
- 2015-12-18 WO PCT/CN2015/097966 patent/WO2016206329A1/zh not_active Ceased
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102204278A (zh) * | 2009-07-27 | 2011-09-28 | 中井重之 | 动磁铁式扬声器及其制造方法 |
| US20150139479A1 (en) * | 2013-11-15 | 2015-05-21 | Merry Electronics (Suzhou) Co., Ltd. | Magnetic circuit and coaxial speaker using the same |
| CN203851286U (zh) * | 2014-03-31 | 2014-09-24 | 歌尔声学股份有限公司 | 扬声器 |
| CN203840532U (zh) * | 2014-04-30 | 2014-09-17 | 江苏裕成电子有限公司 | 三磁路扬声器 |
| CN204031439U (zh) * | 2014-05-26 | 2014-12-17 | 深圳市冠旭电子有限公司 | 扬声器 |
| CN105006334A (zh) * | 2015-06-23 | 2015-10-28 | 歌尔声学股份有限公司 | 多磁路充磁工艺 |
Also Published As
| Publication number | Publication date |
|---|---|
| US20180167736A1 (en) | 2018-06-14 |
| US10225660B2 (en) | 2019-03-05 |
| CN105006334B (zh) | 2017-08-18 |
| CN105006334A (zh) | 2015-10-28 |
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