CN201616901U - Miniature moving coil type electro-acoustic converter - Google Patents

Miniature moving coil type electro-acoustic converter Download PDF

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Publication number
CN201616901U
CN201616901U CN2010201062445U CN201020106244U CN201616901U CN 201616901 U CN201616901 U CN 201616901U CN 2010201062445 U CN2010201062445 U CN 2010201062445U CN 201020106244 U CN201020106244 U CN 201020106244U CN 201616901 U CN201616901 U CN 201616901U
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CN
China
Prior art keywords
wire casing
coil type
miniature moving
shell
electroacoustic transducer
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Expired - Lifetime
Application number
CN2010201062445U
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Chinese (zh)
Inventor
刘春发
葛连山
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Goertek Inc
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Priority to CN2010201062445U priority Critical patent/CN201616901U/en
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Publication of CN201616901U publication Critical patent/CN201616901U/en
Anticipated expiration legal-status Critical
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Abstract

The utility model provides a miniature moving coil type electro-acoustic converter which comprises an auxiliary system and a vibrating system. The auxiliary system comprises a front metal cover and a wire outlet groove arranged on a front shell cover, a wire ordering groove corresponding to the wire outlet groove is arranged on the combined end face of a shell with a front cover, a hearing-aid voice coil combined on the front cover is arranged between the front cover and the vibrating system, and a lead wire is arranged on the hearing-aid voice coil, wherein the width of the wire outlet groove is larger than that of the wire ordering groove. On one hand, the miniature moving type electro-acoustic converter can avoid contact between the lead wire and the front metal cover, so as to prevent poor contact of an insulating resistor and even prevent the disadvantage that the hearing-aid voice coil can be easily cut off by the front metal cover when in wire ordering, thereby eliminating the disadvantage of poor electrical connection of the miniature moving coil type electro-acoustic converter; on the other hand, the miniature moving coil type electro-acoustic converter can effectively avoid contact with a copper ring, so as to prevent the disadvantage of poor contact of the insulating resistor.

Description

Miniature moving-coil type electroacoustic transducer
Technical field
The utility model relates to the electroacoustic transducer technical field, specifically, relates to a kind of miniature moving-coil type electroacoustic transducer with listening help circle.
Background technology
Development along with portable consumer electronic product market, obtained using widely as a large amount of electronic installations such as miniature moving-coil type electroacoustic transducers, in the known technology, for helping the Hearing Impaired to hear sound, generally in miniature moving-coil type electroacoustic transducer, increase listening help circle, so that itself and hearing aids produce induction.
Fig. 6 is a kind of miniature moving-coil type electroacoustic transducer of band listening help circle of prior art, and as shown in Figure 6, this miniature moving-coil type electroacoustic transducer comprises auxiliary system, vibrational system and magnetic circuit system, and auxiliary system comprises metal bezel 11 and plastic casing 12; Vibrational system comprises vibrating diaphragm 21 and the voice coil loudspeaker voice coil 22 that combines with vibrating diaphragm 21, in the operatic tunes between protecgulum 11 and vibrating diaphragm 21, also be provided with the listening help circle 4 that is combined on the protecgulum 11 on the vibrating diaphragm, listening help circle 4 is provided with lead-in wire 41, also be combined with copper ring 5 on the vibrating diaphragm 21, copper ring 5 is bonded in and makes vibrational system fix (known, vibrating diaphragm also can directly be combined on the shell 12) on the shell 12, also is provided with wiring board 6 on the shell 12; On protecgulum 11 and shell 12, also be respectively equipped with out wire casing 111 ' and, go between 41 by going out wire casing 111 ' and suitable wire casing 121 ' upward suitable line and being electrically connected on the wiring board 6 along wire casing 121 '.
The miniature moving-coil type electroacoustic transducer of the band listening help circle of this traditional structure, lead-in wire goes out wire casing (also can touch metal connection parts such as copper ring simultaneously) on the metal bezel very easily touching when the line, cause the bad even lead-in wire of insulation resistance to be cut fracture, drawbacks such as bad appear conducting etc., so be necessary the miniature moving-coil type electroacoustic transducer of the band listening help circle of above-mentioned traditional structure is further improved, to avoid above-mentioned defective.
The utility model content
In order to solve the defective that exists in the above-mentioned prior art, the utility model provides a kind of miniature moving-coil type electroacoustic transducer, comprise auxiliary system and vibrational system, wherein auxiliary system comprises that metal bezel and shell protecgulum are provided with out wire casing, shell is provided with the suitable wire casing corresponding with going out wire casing with the end face of protecgulum combination, between protecgulum and vibrational system, also be provided with the listening help circle that is combined on the protecgulum, listening help circle is provided with lead-in wire, wherein, go out the width of wire casing greater than described width along wire casing.
In addition, preferred construction is, vibrational system comprises vibrating diaphragm and link, and vibrating diaphragm combines with auxiliary system by described link.
In addition, preferred construction is, link is a becket, and becket combines with vibrating diaphragm and is bonded in by becket vibrational system is fixed.
Moreover preferred construction is that described suitable wire casing comprises:
End face is along wire casing, is arranged on described shell and the end face that described protecgulum combines;
Sidewall is arranged on the sidewall of described shell along wire casing, and is connected along wire casing with described end face.
Described end face is higher than the height of described becket along the height of the bottom of wire casing.
The width of the suitable wire casing of described end face is greater than the width of described sidewall along wire casing.
In addition, the shape of listening help circle is corresponding identical with the shape of link.
Preferably, this miniature moving-coil type electroacoustic transducer also comprises the wiring board that combines with the bottom of shell, and lead-in wire goes out wire casing and links to each other with described wiring board along wire casing with described by described.
Preferably, shell is a rectangle, and its four jiaos have respectively and the corresponding bossing of four corner edge, is arranged in one of them bossing along wire casing.
After adopting such scheme, can avoid lead-in wire to touch metal bezel on the one hand, prevent the defective that insulation resistance is bad even the listening help circle lead-in wire is cut off by metal bezel easily along line the time, avoid causing the miniature moving-coil type electroacoustic transducer product to be electrically connected drawbacks such as bad; Also can effectively avoid on the other hand producing and contact, cause defectives such as insulation resistance is bad with copper ring; In addition, use fixedly vibrational system of copper ring, mounting process is also comparatively easy.
Description of drawings
By below in conjunction with accompanying drawing embodiment being described, above-mentioned feature of the present utility model and technological merit will become apparent and understand easily.
Fig. 1 is the decomposing schematic representation of miniature moving-coil type electroacoustic transducer of the present utility model;
Fig. 2 is the stereogram of miniature moving-coil type electroacoustic transducer of the present utility model;
Fig. 3 is the stereogram after miniature moving-coil type electroacoustic transducer of the present utility model removes protecgulum;
Fig. 4 is the schematic top plan view of miniature moving-coil type electroacoustic transducer of the present utility model;
Fig. 5 is the end view of miniature moving-coil type electroacoustic transducer of the present utility model;
Fig. 6 be prior art the miniature moving-coil type electroacoustic transducer generalized section.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is done further detailed description.
Fig. 1 is the decomposing schematic representation of miniature moving-coil type electroacoustic transducer of the present utility model.As shown in Figure 1, the miniature moving-coil type electroacoustic transducer that provides of the utility model comprises auxiliary system, vibrational system and magnetic circuit system.Wherein auxiliary system comprises protecgulum 11 and shell 12, and wherein protecgulum 11 is a metal structure, and shell 12 is a rectangle structure.Vibrational system comprises vibrating diaphragm 21 and the circular voice coil loudspeaker voice coil 22 that combines with vibrating diaphragm 21, also is combined with the copper ring 5 as link on the vibrating diaphragm 21, and copper ring 5 can fix vibrational system by being bonded on the shell 12.Magnetic circuit system comprises the magnetic conductive board 33 of the washer 31, magnet 32 and the T shape that combine from top to bottom.
In addition, also be provided with the listening help circle 4 that is combined on the protecgulum 11 in the operatic tunes between protecgulum 11 and vibrating diaphragm 21, the shape of listening help circle 4 is corresponding identical with the shape of copper ring 5; Also be provided with lead-in wire 41 on the listening help circle 4, also be combined with wiring board 6 in the exterior bottom of shell 12, lead-in wire 41 is connected to the external circuit of electroacoustic transducer by wiring board 6.
Protecgulum 11 comprises wire casing 111 and equally distributed sound hole 112, wherein go out wire casing 111 can so that go between 41 on the described miniature moving-coil type electroacoustic transducer along line and be electrically connected on the wiring board 6.The width that goes out wire casing 111 is by default.
Fig. 2, Fig. 4 and Fig. 5 are each unit construction overall structure schematic diagram together of miniature moving-coil type electroacoustic transducer of the present utility model, and Fig. 3 is for removing the stereogram behind the protecgulum among Fig. 2.As Fig. 2, Fig. 3, Fig. 4 and shown in Figure 5, as preferred implementation of the present utility model, shell 21 is a plastic casing, is designed to rectangle structure.And four jiaos at this rectangle shell are respectively arranged with and the corresponding bossing of described four corner edge; so just between the bottom surface of rectangle shell 12 and four jiaos, form the rectangular space of a protectiveness; 11 correspondences of protecgulum are designed to embed the structure of this rectangular space, thereby listening help circle 4, vibrational system and magnetic circuit system are accommodated between protecgulum 11 and the shell 12 in turn.
In the bossing at one of them angle of protecgulum 12, be provided with the suitable wire casing 121 that makes lead-in wire 41 go out shell 12 along lines, should along wire casing 121 be provided with the position also with protecgulum 11 go out wire casing 111 that the position is set is corresponding, and along the width of wire casing 121 less than the width that goes out wire casing 111 so that go between 41 along lines, avoid simultaneously going between and 41 touch metal bezel 11, prevent the defective that the insulation resistance that causes therefrom is bad even the listening help circle lead-in wire is cut off by metal bezel easily along line the time, avoid causing the miniature moving-coil type electroacoustic transducer product to be electrically connected drawbacks such as bad.
According to Fig. 2 and shown in Figure 3, the cross section of suitable wire casing 121 is similar to trapezoidal, and comprises that end face is along wire casing 121a and the suitable wire casing 121b two parts of sidewall.Wherein end face is arranged on shell 12 and the end face that protecgulum 11 combines along wire casing 121a, and the height of the bottom of the suitable wire casing 121a of end face is greater than the surface of copper ring 5, shown in the end view of Fig. 5, the difference in height on the bottom of the suitable wire casing 121a of end face and the surface of copper ring 5 is h, like this can be unsettled along line time lead-in wire 41 be convenient to along line and can not contact with copper ring 5, and also can avoid going between in the use along electroacoustic transducer behind the line 41 contacts with copper ring, thereby prevents defectives such as the insulation resistance that causes because of contact is bad.
Sidewall is arranged on the sidewall of shell 12 along wire casing 121b; be connected along wire casing 121a with end face; and the width of the suitable wire casing 121b of sidewall is less than the width of end face along wire casing 121a; the part that can make lead-in wire 41 go out the shell 12 of electroacoustic transducer along line like this obtains better protection in the cavity that forms along wire casing 121b, the lead-in wire damage of avoiding miniature moving-coil type electroacoustic transducer to cause owing to too exposing of lead-in wire 41 in installation, use.
By above structural design, the utility model can avoid lead-in wire to touch metal bezel on the one hand, prevent the defective that insulation resistance is bad even the listening help circle lead-in wire is cut off by metal bezel easily along line the time, avoid causing the miniature moving-coil type electroacoustic transducer product to be electrically connected drawbacks such as bad; Also can effectively avoid on the other hand producing and contact, cause defectives such as insulation resistance is bad with copper ring; In addition, use fixedly vibrational system of copper ring, mounting process is also comparatively easy.
The foregoing description only is a preferred implementation of the present utility model, and in implementation process of the present utility model, copper ring also can be selected other material for use; Can directly not be fastened on vibrating diaphragm on the shell by copper ring yet; Also can be only on shell and end face that protecgulum combines, be provided with along wire casing.In addition copper ring is arranged to the identical above-mentioned implementation process embodiment preferred that only is, is selected for use the copper ring of the fixedly vibrating diaphragm of other shape also not influence goal of the invention of the present utility model with the listening help circle structure; The miniature moving-coil type electroacoustic transducer unit also can be other structure, and above-mentioned neither influence enforcement of the present utility model all is interpreted as protection range of the present utility model.
Therefore; under above-mentioned instruction of the present utility model; those skilled in the art can carry out various improvement and distortion on the basis of the foregoing description; and these improvement and distortion; all drop in the protection range of the present utility model; it will be understood by those skilled in the art that the just better the purpose of this utility model of explaining of above-mentioned specific descriptions, protection range of the present utility model is limited by claim and equivalent thereof.

Claims (10)

1. miniature moving-coil type electroacoustic transducer, comprise auxiliary system and vibrational system, wherein auxiliary system comprises metal bezel, (11) and shell, (12), described protecgulum, (11) be provided with out wire casing, (111), described shell, (12) with described protecgulum, (11) end face of combination is provided with described and goes out wire casing, (111) Dui Ying suitable wire casing, (121), at protecgulum, (11) and also be provided with between the described vibrational system and be combined in protecgulum, (11) listening help circle on, (4), at described listening help circle, (4) be provided with lead-in wire, (41), it is characterized in that
Describedly go out the width of wire casing (111) greater than described width along wire casing (121).
2. according to the described miniature moving-coil type electroacoustic transducer of claim 1, it is characterized in that,
Described vibrational system comprises vibrating diaphragm (21) and link, and described vibrating diaphragm (21) combines with described auxiliary system by described link.
3. according to the described miniature moving-coil type electroacoustic transducer of claim 2, it is characterized in that,
Described link is becket (5), and described becket (5) combines with described vibrating diaphragm (21) also to be bonded on the described shell (12) by becket (5) described vibrational system is fixed.
4. according to the described miniature moving-coil type electroacoustic transducer of claim 3, it is characterized in that described suitable wire casing (121) comprising:
End face is along wire casing (121a), is arranged on described shell (12) and the end face that described protecgulum combines;
Sidewall is arranged on the sidewall of described shell (12) along wire casing (121b), and is connected along wire casing (121a) with described end face.
5. according to the described miniature moving-coil type electroacoustic transducer of claim 4, it is characterized in that,
Described end face is higher than the height of described becket (5) along the height of the bottom of wire casing (121a).
6. according to the described miniature moving-coil type electroacoustic transducer of claim 4, it is characterized in that,
The width of the suitable wire casing (121a) of described end face is greater than the width of described sidewall along wire casing (121b).
7. according to the described miniature moving-coil type electroacoustic transducer of claim 2, it is characterized in that,
The shape of described listening help circle (4) is corresponding identical with the shape of described link.
8. according to the described miniature moving-coil type electroacoustic transducer of claim 7, it is characterized in that, also comprise:
Wiring board (6) combines with the bottom of described shell (12);
Described lead-in wire (41) goes out wire casing (111) and links to each other with described wiring board (6) along wire casing (121) with described by described.
9. according to each described miniature moving-coil type electroacoustic transducer in the claim 1 to 8, it is characterized in that,
Described shell (12) is a rectangle, and four jiaos of described rectangle shell have respectively and the corresponding bossing of described four corner edge, and described suitable wire casing (121) is arranged in one of them bossing.
10. according to each described miniature moving-coil type electroacoustic transducer in the claim 1 to 8, it is characterized in that,
Described protecgulum (11) is provided with equally distributed sound hole (112).
CN2010201062445U 2010-02-02 2010-02-02 Miniature moving coil type electro-acoustic converter Expired - Lifetime CN201616901U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN2010201062445U CN201616901U (en) 2010-02-02 2010-02-02 Miniature moving coil type electro-acoustic converter

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN2010201062445U CN201616901U (en) 2010-02-02 2010-02-02 Miniature moving coil type electro-acoustic converter

Publications (1)

Publication Number Publication Date
CN201616901U true CN201616901U (en) 2010-10-27

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Application Number Title Priority Date Filing Date
CN2010201062445U Expired - Lifetime CN201616901U (en) 2010-02-02 2010-02-02 Miniature moving coil type electro-acoustic converter

Country Status (1)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016029540A1 (en) * 2014-08-26 2016-03-03 歌尔声学股份有限公司 Miniature speaker
WO2019000579A1 (en) * 2017-06-30 2019-01-03 歌尔股份有限公司 Microspeaker and method for assembling same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2016029540A1 (en) * 2014-08-26 2016-03-03 歌尔声学股份有限公司 Miniature speaker
US10111008B2 (en) 2014-08-26 2018-10-23 Goertek Inc. Miniature speaker
WO2019000579A1 (en) * 2017-06-30 2019-01-03 歌尔股份有限公司 Microspeaker and method for assembling same

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C14 Grant of patent or utility model
CP01 Change in the name or title of a patent holder

Address after: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268

Patentee after: Goertek Inc.

Address before: 261031 Dongfang Road, Weifang high tech Industrial Development Zone, Shandong, China, No. 268

Patentee before: Goertek Inc.

C56 Change in the name or address of the patentee
CX01 Expiry of patent term

Granted publication date: 20101027

CX01 Expiry of patent term