WO2016206329A1 - 多磁路充磁工艺 - Google Patents

多磁路充磁工艺 Download PDF

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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
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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
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PCT/CN2015/097966
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English (en)
French (fr)
Inventor
王斌
王强
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Goertek Inc
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Goertek Inc
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Publication date
Application filed by Goertek Inc filed Critical Goertek Inc
Priority to US15/577,246 priority Critical patent/US10225660B2/en
Publication of WO2016206329A1 publication Critical patent/WO2016206329A1/zh
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/02Details
    • H04R9/025Magnetic circuit
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F13/00Apparatus or processes for magnetising or demagnetising
    • H01F13/003Methods and devices for magnetising permanent magnets
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F41/00Apparatus 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
    • HELECTRICITY
    • H01ELECTRIC ELEMENTS
    • H01FMAGNETS; INDUCTANCES; TRANSFORMERS; SELECTION OF MATERIALS FOR THEIR MAGNETIC PROPERTIES
    • H01F7/00Magnets
    • H01F7/06Electromagnets; Actuators including electromagnets
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R31/00Apparatus or processes specially adapted for the manufacture of transducers or diaphragms therefor
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R9/00Transducers of moving-coil, moving-strip, or moving-wire type
    • H04R9/06Loudspeakers
    • HELECTRICITY
    • H04ELECTRIC COMMUNICATION TECHNIQUE
    • H04RLOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; ELECTRIC HEARING AIDS; PUBLIC ADDRESS SYSTEMS
    • H04R2209/00Details 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
    • H04R2209/024Manufacturing 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

一种多磁路充磁工艺,涉及电声产品技术领域,包括如下步骤:S1、将未充磁的第一磁路组件(12)固定在同样未充磁的第二磁路组件(22)上,组装成未充磁的磁路组件(32);S2、对所述步骤S1完成的未充磁的磁路组件(32)进行充磁,此步骤中采用第一磁路充磁线圈(40)及第二磁路充磁线圈(50)分别对所述未充磁第一磁路组件(12)及所述未充磁第二磁路组件(22)进行充磁,即完成了多磁路的充磁工艺。多磁路充磁工艺解决了现有技术中多磁路充磁工艺工序复杂、胶水可用种类少等技术问题,多磁路充磁工艺工序简单,工艺操作难度低,可选择的胶水种类多,生产效率高。

Description

多磁路充磁工艺 技术领域
本发明涉及电声产品技术领域,特别涉及一种多磁路充磁工艺。
发明背景
扬声器是便携式电子设备的重要声学部件,用于完成电信号与声音信号之间的转换,是一种能量转换器件。现有的扬声器包括振动组件及磁路组件,磁路组件大多包括内磁路组件和外磁路组件,外磁路组件环绕在内磁路组件的外周。在进行扬声器组装时,需要对内磁路组件及外磁路组件进行充磁,并使得内磁路组件与外磁路组件的极性相反。
目前,对这种多磁路的磁路组件进行充磁的工艺包括如下步骤,参见图1a、图1b和图1c:
第一步,通过内磁路充磁线圈40对未充磁的内磁路组件12进行充磁,充磁结束后形成上端为N极,下端为S极的内磁路组件10(仅限于图示的电流方向,如果电流方向相反,则充磁后的磁极也相反);
第二步,通过外磁路充磁线圈50对未充磁外磁路组件22进行充磁,充磁结束后形成上端为S极,下端为N极的外磁路组件20;
第三步,将内磁路组件10通过胶水固定在外磁路组件20上,形成成品磁路组件30。
上述先充磁再粘接固定的多磁路充磁工艺具有如下缺陷:
一、由于高温会消去部分磁性,所以在粘接内磁路组件与外磁路组件时只能选择固化温度较低的胶水,此种胶水的固化时间长,使得多磁路的磁路组件生产效率较低;
二、固化温度较低的胶水的粘接力大多较小,不能满足产品的要求,而粘接力大,且固化温度低的可用胶水种类极少,且价格也较高,提高了产品的生产成本;
三、内磁路组件与外磁路组件充磁后因二者的极性相反,故二者之间存在一定的吸引力,大大的增加了粘接工序的难度,进一步的降低了生产效率。
发明内容
针对以上缺陷,本发明所要解决的技术问题是提供一种多磁路充磁工艺,此多磁路充磁工艺简便易操作,粘接胶水的选择种类多,生产效率高,生产成本低。
为解决上述技术问题,本发明的技术方案是:
一种多磁路充磁工艺,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。
作为一种实施方式,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。
作为另一种实施方式,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。
其中,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。
其中,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。
采用了上述技术方案后,本发明的有益效果是:
由于本发明多磁路充磁工艺是先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,形成磁路组件,然后通过第一磁路充磁线圈和第二磁路充磁线圈分别对第一磁路组件和第二磁路组件进行充磁,充磁完成后即完成了多磁路的充磁工艺。此种先组装再一体化充磁的工艺与现有技术中的先分别充磁再组装的工艺相比具有如下优点:
一、充磁工艺更为简便,充磁效率高;
二、先组装(第一、第二磁路间粘接固定)再充磁,胶水的固化温度不会对磁性产生影响,因此胶水的选择种类较多,可以选择一些固化温度高,且粘接力强,成本低的胶水。
三、在进行第一磁路组件与第二磁路组件粘接时,第一磁路组件与第二磁路组件均没有磁性,故二者之间不会有吸引力,粘接起来更容易,生产效率更高。
综上所述,本发明多磁路充磁工艺解决了现有技术中多磁路充磁工艺工序复杂、胶水可用种类少等技术问题,本发明多磁路充磁工艺工序简单,工艺操作难度低,可选择的胶水种类多,生产效率高。
上述说明仅是本发明技术方案的概述,为了能够更清楚了解本发明的技术手段,以下特举本发明的具体实施方式。
附图简要说明
附图用来提供对本发明的进一步理解,并且构成说明书的一部分,与本发明实施例一起用于解释本发明,并不构成对本发明的限制。在附图中: 图1a是现有技术中多磁路充磁工艺的流程图--第一步;
图1b是现有技术中多磁路充磁工艺的流程图--第二步;
图1c是现有技术中多磁路充磁工艺的流程图--第三步;
图2a是本发明多磁路充磁工艺实施例一的流程图--第一步;
图2b是本发明多磁路充磁工艺实施例一的流程图--第二步;
图3a是本发明多磁路充磁工艺实施例二的流程图--第一步;
图3b是本发明多磁路充磁工艺实施例二的流程图--第二步;
图中:10、内磁路组件,12、未充磁内磁路组件,20、外磁路组件,22、未充磁外磁路组件,30、成品磁路组件,32、未充磁磁路组件,34、部分充磁磁路组件,40、内磁路充磁线圈,50、外磁路充磁线圈,60、磁屏蔽部件,100、内磁铁,102、内华司,104、外磁铁,106、外华司,108、导磁板,200、磁间隙。
具体实施方式
为使本发明的目的、技术方案和优点更加清楚,下面结合附图和实施例,进一步阐述本发明。
如图2a、图2b及图3a、图3b所示,一种多磁路充磁工艺,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未充磁第一磁路组件及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。
多磁路组件包括双磁路、三磁路、四磁路等,因为双磁路较常见,故下面以一种双磁路的磁路组件为例对本发明多磁路充磁工艺进行详细的阐述:
如图2a所示,设有双磁路的磁路组件包括由内磁铁100和内华司102构成的内磁路,还包括由外磁铁104和外华司106构成的外磁路,外磁路和内磁路均粘接固定在导磁板108上,外磁路环绕在内磁路的外周,在内磁路与外磁路之间留有一定间隙,此间隙为磁间隙200。
实施例一:
如图2a和图2b共同所示,一种多磁路充磁工艺,包括如下步骤:
第一步:参见图2a,将未充磁内磁路组件12(第一磁路组件)通过胶水粘接固定到未充磁外磁路组件22(第二磁路组件)的中心部位,组合成未充磁磁路组件32。
其中胶水可选择聚氨酯低温热熔胶、EVA低温热熔胶(主要成份乙烯与醋酸乙烯)、厌氧热固胶或环氧热固胶等,此四种胶水为本实施方式的优选种类,但并不限于此四种。
第二步:
参见图2b,通过充磁设备对未充磁磁路组件32充磁,将内磁路充磁线圈40设置在磁间隙200内,将外磁路充磁线圈50设置在未充磁磁路组件32的外侧。
给外磁路充磁线圈50(第二磁路充磁线圈)通入电流,设电流的方向如图所示,⊙代表电流方向垂直图面向外, 代表电流方向垂直图面向里,此时内磁路充磁线圈40不通电。根据右手定则,未充磁外磁路组件22在外磁路充磁线圈50产生的磁场作用下被磁化,形成上方为S极,下方为N极的磁性体,此时磁路组件成为部分充磁磁路组件34。
外磁路组件充磁完毕后,给外磁路充磁线圈50断电,然后接通内磁路充磁线圈40(第一磁路充磁线圈)的电源,给内磁路充磁线圈40通入与外磁路充磁线圈50的电流方向相反的电流,对部分充磁磁路组件34中的内磁路组件充磁,同样适用右手定则,内磁路组件在内磁路充磁线圈40产生的磁场作用下被极化,形成上方为N极,下方为S极的磁性体,此时给内磁路充磁线圈40断电,即完成了多磁路组件的充磁工艺,形成了内、外磁路极性相反的成品磁路组件30。
本实施方式中先充磁的外磁路组件位于内磁路充磁线圈40产生的磁场之外,故在对内磁路充磁时不会对已充磁的外磁路产生影响,成品磁路组件30的极性稳定,且充磁工艺简单易操作。
实施例二:
本实施方式与实施例一基本相同,其不同之处在于:
如图3a和图3b共同所示,第一步(参见图3a)与实施例一的第一步相同,在此不在详述。
第二步:
参见图3b,接通内磁路充磁线圈40的电源,此时外磁路充磁线圈50不通电。内磁路充磁线圈40中通过的电流方向如图3b所示,同样根据右手定则,在内磁路充磁线圈40产生的磁场作用下,内磁路组件被磁化,其上方为N极,下方为S极。
内磁路组件充磁完毕后,断开内磁路充磁线圈40的电源,给外磁路充磁线圈50通电,外磁路充磁线圈50内通过的电流方向与内磁路充磁线圈40内通过的电流方向相反。因为此时内磁路组件和外磁路组件均在外磁路充磁线圈50产生的磁场内,为了已经充磁的内磁路组件不被外磁路充磁线圈50产生的磁场影响,保证其极性不变,因此需要在已充磁的内磁路组件的上方和下方各设一磁屏蔽部件60,以保护内磁路的极性不被影响。外磁路组件在外磁路充磁线圈50产生的磁场作用下被磁化,其上方为S极,下方为N极,与内磁路组件的极性相反,形成成品磁路组件30,至此完成了多磁路组件的充磁工艺。
上述两个实施例中内磁路充磁线圈40与外磁路充磁线圈50内通入的电流方向仅是一种举例说明,实际应用中并不以此为准,只要二者通入的电流方向相反即可。
上述两个实施例仅是以双磁路的磁路组件为例对本发明多磁路充磁工艺进行了详细的阐述,而实际中多磁路的磁路组件还包括三磁路、四磁路等,本领域技术人员根据上述两个实施例的阐述不需要付出创造性劳动就可以实现对三磁路的磁路组件及四磁路的磁路组件等多磁路组件进行一体化充磁,故关于其它多磁路的磁路组件的充磁工艺的具体实施方式在此不再详述。
本发明多磁路充磁工艺是先将内、外磁路组件粘接在一起,然后再通过充磁设备进行一体充磁,有效的简化了多磁路的充磁工序,降低了工艺的操作难度,且可选择的胶水种类多,生产效率高,生产成本低。
本发明不局限于上述具体的实施方式,本领域的普通技术人员从上述构思出发,不经过创造性的劳动,所做出的种种变换,均落在本发明的保护范围之内。

Claims (5)

  1. 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。
  2. 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。
  3. 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。
  4. 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。
  5. 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。
PCT/CN2015/097966 2015-06-23 2015-12-18 多磁路充磁工艺 Ceased WO2016206329A1 (zh)

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