CN204836567U - Electroacoustic transducer and audio equipment - Google Patents
Electroacoustic transducer and audio equipment Download PDFInfo
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- CN204836567U CN204836567U CN201520587248.2U CN201520587248U CN204836567U CN 204836567 U CN204836567 U CN 204836567U CN 201520587248 U CN201520587248 U CN 201520587248U CN 204836567 U CN204836567 U CN 204836567U
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- sound tube
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Abstract
The application discloses electroacoustic transducer and audio equipment. This electroacoustic transducer includes: a housing, the casing has the cavity to including casing upper portion and casing lower part, the diaphragm, the diaphragm is set up in the cavity, and will the cavity is separated for ante -chamber and back cavity, wherein the ante -chamber with casing upper portion is adjacent, the back cavity with the casing lower part is adjacent, and motor sub -assembly, the motor sub -assembly is set up in the back cavity to including being couple to the diaphragm armature and be used for the drive armature with the coil of diaphragm, wherein, the casing lower part includes shell cavity portion and goes out this somatic part of sound pipe, and shell cavity portion with go out this somatic part of sound pipe forms integratively, it prescribes a limit to the sound pipe at least in part to go out this somatic part of sound pipe, go out the sound pipe through the sound channel with the ante -chamber intercommunication. The utility model discloses an electroacoustic transducer and audio equipment sound construction just are convenient for assemble.
Description
Technical field
The application relates to Audiotechnica, more specifically, relates to a kind of electroacoustic transducer and audio frequency apparatus.
Background technology
Electroacoustic transducer is widely used in audio frequency apparatus, and it can convert electrical signals to voice signal.Particularly, electroacoustic transducer can change the audio-frequency electric power signal in certain limit into sub-audible sound by the mode of transducing.The electroacoustic transducer that voice signal converts the signal of telecommunication to generally comprises the housing parts and sound tube part with cavity.In existing technique, housing parts and sound tube part are formed respectively, and then be bonded together by suitable method.
But, when assembling, if the installation site misalignment of housing parts and sound tube parts or generation mismatch, then likely cause electroacoustic transducer hydraulic performance decline or inefficacy.
Utility model content
An object of the application is to provide a kind of sound construction and is convenient to the electroacoustic transducer of assembling.
According to an aspect of the present utility model, provide a kind of electroacoustic transducer, this electroacoustic transducer comprises: housing, and described housing has cavity, and comprises housing upper and lower housing portion; Barrier film, described barrier film is arranged in described cavity, and described cavity is divided into ante-chamber and back cavity, and wherein said ante-chamber is adjacent with described housing upper, and described back cavity is adjacent with described lower housing portion; And motor sub-assembly, described motor sub-assembly is arranged in described back cavity, and comprises the armature that is couple to described barrier film and for driving the coil of described armature and described barrier film; Wherein, described lower housing portion comprises shell cavity portion and sound tube body, and described shell cavity portion and described sound tube body form; Described sound tube body limits sound tube at least in part, and described sound tube is communicated with described ante-chamber by sound channel.
Shell cavity portion and the sound tube body of the lower housing portion of the electroacoustic transducer of the present embodiment form, and therefore do not need these two parts to be assembled individually.This contributes to the complexity reducing assembly technology, enhances productivity and reduces assembly cost.In addition, this structure is more firm, and reduces the mismatch ratio between assembly.
As embodiments more of the present utility model, described sound channel passes the part higher than barrier film of the described shell cavity portion sidewall adjacent with described sound tube body.
As embodiments more of the present utility model, described housing upper comprises shell cavity cap and sound tube cap, described sound tube cap and described sound tube body limit described sound tube jointly, and described sound channel is between described sound tube and described ante-chamber.
As embodiments more of the present utility model, shell cavity portion and the sound tube body of described lower housing portion are formed by molded and shaped process.
According to the utility model on the other hand, a kind of audio frequency apparatus is also provided, comprises the electroacoustic transducer described in above-mentioned aspect.
As embodiments more of the present utility model, described audio frequency apparatus is hearing aids, inner ear type monitor, headphone or electronics hearing protection.
Be more than the general introduction of the application, the situation of simplification, summary and omissions of detail may be had, therefore those skilled in the art will appreciate that this part is only Illustrative, and be not intended to limit the application's scope by any way.This overview section is the key feature of not intended to be determination claimed subject or essential feature both, and also not intended to be is used as the supplementary means of the scope determining claimed subject.
Accompanying drawing explanation
Be combined with accompanying drawing by following description and appending claims, the above and other feature understanding teachings herein will be known more fully.Be appreciated that these drawings depict only some execution modes of teachings herein, therefore should do not think the restriction to teachings herein scope.By adopting accompanying drawing, teachings herein will obtain definitely and explain.
Fig. 1 shows the schematic diagram of the electroacoustic transducer according to the application's embodiment;
Fig. 2 shows the schematic diagram of the electroacoustic transducer part shown in Fig. 1;
Fig. 3 show according to the electroacoustic transducer of another embodiment of the application with adopt sound pressure level (SPL) frequency response curve isolating the electroacoustic transducer of sound tubular construction.
Embodiment
In the following detailed description, with reference to the accompanying drawing forming its part.In the accompanying drawings, the part that similar symbol ordinary representation is similar, unless otherwise indicated by context.The illustrated embodiment describe in detail, described in accompanying drawing and claims not intended to be limit.When not departing from the spirit or scope of theme of the application, other execution modes can be adopted, and other changes can be made.Be appreciated that and can carry out multiple differently composed configuration, replacement, combination, design to the various aspects of teachings herein that describe, graphic extension in the accompanying drawings general in the application, and all these forms a part for teachings herein clearly.
Fig. 1 shows the electroacoustic transducer 100 according to the application's embodiment.Fig. 2 shows the schematic diagram of this electroacoustic transducer 100 part.In actual applications, this electroacoustic transducer can be applied to audio frequency apparatus, and as specific embodiment, audio frequency apparatus can be hearing aids, inner ear type monitor, headphone or electronics hearing protection.
Please refer to shown in Fig. 1 and Fig. 2, this electroacoustic transducer 100 comprises: the housing (sign) with cavity, is positioned over the barrier film 120 in housing and motor sub-assembly 130, and motor sub-assembly 130 drives barrier film 120 to vibrate.
In certain embodiments, this housing can be cuboid, class cuboid, square, class square, cylinder, class cylinder or irregular polyhedrons; The material of this housing can be one or more the combination in plastics, metal, glass, pottery or above-mentioned material.This housing has cavity, and this cavity is suitable for other assemblies settling electroacoustic transducer 100, such as barrier film 120 and motor sub-assembly 130.
Particularly, this housing comprises housing upper 102 and lower housing portion 104.Wherein, housing upper 102 can by weld or the mode such as bonding coordinates with lower housing portion 104.Lower housing portion 104 is configured to the roughly box-like of upper opening.In certain embodiments, lower housing portion 104 also has perforate 106, and it is such as positioned on the diapire of lower housing portion 104.Be appreciated that in other embodiments, perforate also can be positioned at the sidewall of lower housing portion 104.This perforate 106 make the lead-in wire of motor sub-assembly 130 (sign) by or electric terminal 180 that connecting motor assembly 130 go between expose, to receive the signal of telecommunication of drive motor assembly 130 operation from external devices.Further, this perforate 106 can bonded material seal.Housing upper 102 is suitable for coordinating with lower housing portion 104 limiting cavity.As shown in Figure 2, lower housing portion 104 has the opening 108 being arranged at lower housing portion 104 top, and housing upper 102 is suitable for welding or is adhered on this opening 108, thus is substantially closed by cavity.In the illustrated example shown in fig. 2, housing has the step-like opening 108 being arranged at lower housing portion 104 top, this step-like opening 108 has lower step 108a and upper step 108b, wherein housing upper 102 is suitable for welding or is bonded on the upper step 108b of step-like opening 108, and the lower edge of housing upper 102 is embedded in the step-like opening 108 of lower housing portion 104 slightly.
The barrier film 120 of electroacoustic transducer 100 is arranged in the cavity of housing restriction, and cavity is divided into the ante-chamber (do not indicate) adjacent with housing upper 102 and the back cavity (do not indicate) adjacent with lower housing portion 104.Shown in figure 2, barrier film can be placed in lower housing portion 104, and is connected on the sidewall of lower housing portion 104.Particularly, the edge of barrier film 120 can be fixed on the lower step 108a of step-like opening 108, such as, be connected on lower step 108a by adhesive.To be appreciated that at some in other embodiment, barrier film 120 also can be placed in housing upper 102, and is connected to the sidewall of housing upper 102.
Shown in figure 1 and Fig. 2, lower housing portion 104 comprises shell cavity portion 110 and sound tube body 112, and this shell cavity portion 110 and sound tube body 112 form.Like this, lower housing portion 104 can provide as parts.The shell cavity portion 110 be integrally formed and sound tube body 112 can reduce the component count that electroacoustic transducer need assemble, thus reduce the assembling procedure of electroacoustic transducer.In addition, said structure is more firm, reduces the mismatch of electroacoustic transducer assembly, decreases mismachining tolerance.
This shell cavity portion 110 has and is suitable for holding the members of electroacoustic transducer or the cavity of all components, this cavity be cavity at least partially or all.Such as, in the embodiment shown in Fig. 1 and Fig. 2, shell cavity portion 110 defines a part for the whole of back cavity and ante-chamber.In other examples, shell cavity portion 110 can limit a part for back cavity, or can limit the whole of the whole of back cavity and ante-chamber, and this part ground depends on the installation site of barrier film.
Sound tube body 112 limits sound tube at least in part, and sound tube is communicated with ante-chamber by sound channel (sign).In certain embodiments, sound tube body can be cylindric part or all, which defines sound tube.In further embodiments, sound tube body 112 comprises the first pipe portion 112a, and has the second pipe portion 112b of near-end and far-end.Wherein, the near-end of the second pipe portion 112b and the first pipe portion 112a are adjacent, far-end is adjacent with shell cavity portion 110, and the caliber of the second pipe portion 112b is greater than the caliber of the first pipe portion 112a.In certain embodiments, the first pipe portion 112a is roughly cylindric, and the second pipe portion 112b is roughly cylindric or other shapes, such as, substantially in rectangular shape.Wherein, sound tube runs through the first pipe portion 112a and the second pipe portion 112b.
Shell cavity portion 110 and sound tube body 112 form, and its composition material can be identical, such as, be plastics, metal, glass or pottery.Shell cavity portion 110 and the sound tube body 112 of lower housing portion 104 can be formed by molded and shaped process.In certain embodiments, lower housing portion 104 can adopt to have and form with shell cavity portion 110 and sound tube body 112 mold injection corresponding to one or blowing.In further embodiments, lower housing portion 104 can adopt and have with shell cavity portion 110 and die casting corresponding to sound tube body 112 one, forges and presses or be stamped to form.
As aforementioned, sound tube body 112 limits sound tube at least in part, and sound tube is communicated with ante-chamber by sound channel.When barrier film 120 vibrates generation sound, sound can outwards be propagated by ante-chamber, sound channel and sound tube successively.In certain embodiments, the top of the sidewall between sound tube body 112 and shell cavity portion 110 has sound channel, and this sound channel is such as running through the hole of the sidewall of the shell cavity portion 110 adjoined with sound tube body 112.One end of this sound channel and the channel connection of sound tube body 112, the other end of this sound channel is communicated with ante-chamber, and barrier film 120 is arranged at the position of shell cavity portion 110 sidewall lower than sound channel.
Shown in figure 1, housing upper 102 can comprise shell cavity cap 114 and sound tube cap 116, and wherein, sound tube cap 116 is positioned at the side of shell cavity cap 114 and extends to the direction away from shell cavity cap 114.Shell cavity cap 114 is suitable for the opening of cover housing cavity portion 110, and this sound tube cap 116 is suitable for the opening covering sound tube body 112, such as, cover the opening of the second pipe portion 112b.When sound tube cap 114 covers the opening of sound tube body 112, sound tube cap 114 and sound tube body 112 limit sound tube jointly.In addition, the position that shell cavity cap 114 and sound tube cap 116 have a common boundary is substantially corresponding with the position of sidewall between sound tube body 112 and shell cavity portion 110, thus these two parts from above and below jointly limit sound channel, and this sound channel is between sound tube and ante-chamber.
Be appreciated that housing upper and the lower housing portion of electroacoustic transducer can adopt the structure be different from shown in Fig. 1 and Fig. 2.In further embodiments, housing upper is the box-like body of the band opening of back-off, and housing upper has the dividing wall to downward-extension, and the position that position and the lower housing portion of this dividing wall are separated out the sidewall of sound tube body portion and shell cavity portion is corresponding.This dividing wall can have the sound channel running through it, this sound channel is between sound tube with ante-chamber and be communicated with this two parts, and on the sidewall that barrier film is arranged at shell cavity portion and the position of barrier film is lower than the position of sound channel.In further embodiments, housing upper is the box-like body of the band opening of back-off, housing upper has the dividing wall to downward-extension, the described dividing wall to downward-extension is corresponding with the position of the shell cavity portion sidewall that the sound tube body with lower housing portion adjoins, and sound channel is limited jointly by the dividing wall of housing upper and the sidewall of lower housing portion.In addition, barrier film is arranged at the shell cavity portion sidewall lower than sound channel.
In addition, in the embodiment shown in Fig. 1 and 2, sound tube is limited jointly by housing upper 102 and lower housing portion 104.At some in other embodiment, also can limit the whole of sound tube by the sound tube body 112 of lower housing portion 104.
The motor sub-assembly 130 of electroacoustic transducer 100 is arranged in back cavity, and comprises the armature 140 being couple to barrier film 120, the yoke 150 forming closed magnetic circuit with armature 140 and for driving the coil 160 of armature 140 and barrier film 120.This electroacoustic transducer 100 also comprises supporting bracket 170, supporting bracket 170 is positioned at lower housing portion 104 at least in part, and near the perforate 106 of lower housing portion 104 sidewall, supporting bracket 170 has electric terminal 180 down, and wherein electric terminal 180 is electrically connected to the lead-in wire of coil 160 and can passes perforate 106.Like this, after the assembling completing whole electroacoustic transducer, electric terminal 180 can expose from housing, thus contacts with external devices.When electroacoustic transducer 100 works, the magnetic field that coil 160 receives drive singal and changes, this magnetic field drives armature 140 to vibrate further.The vibration of armature 140 is delivered to barrier film 120 by connecting rod, causes barrier film 120 to vibrate.The vibration of barrier film 120 can produce sound, and this sound spreads out of the outside of electroacoustic transducer 100 by ante-chamber, sound channel and sound tube.
Fig. 3 show according to the electroacoustic transducer of the employing of the embodiment of the present application one sound tube structure with adopt sound pressure level (SPL) frequency response curve isolating the electroacoustic transducer of sound tubular construction.Wherein, the electroacoustic transducer of one sound tube structure is such as the electroacoustic transducer shown in Fig. 1 and 2; And isolate in the electroacoustic transducer of sound tubular construction, sound tube is formed by two the part assemblies be separated with the housing of accommodation motor sub-assembly, barrier film, and other structural design is substantially identical with the electroacoustic transducer of one sound tube structure with size.As seen from Figure 3, the sound pressure level frequency response curve of both is substantially identical, therefore adopts the electroacoustic transducer of the application's design can not have an impact to the conversion of the electroacoustic of electroacoustic transducer, and it still can the designing requirement of compatible existing audio frequency apparatus well.
The utility model also provides a kind of audio frequency apparatus, and this audio frequency apparatus can be hearing aids, inner ear type monitor, headphone or electronics hearing protection, and this audio frequency apparatus comprises the electroacoustic transducer of above-mentioned any embodiment.
Although it should be noted that the some modules or submodule that are referred to electroacoustic transducer and audio frequency apparatus in above-detailed, this division is only exemplary but not enforceable.In fact, according to the embodiment of the application, the Characteristic and function of two or more modules above-described can be specialized in a module.Otherwise, the Characteristic and function of an above-described module can Further Division for be specialized by multiple module.
The those skilled in the art of those the art can pass through research specification, disclosed content and accompanying drawing and appending claims, understand and implement other changes to the execution mode disclosed.In the claims, word " comprises " element and step of not getting rid of other, and wording " one ", " one " do not get rid of plural number.In the practical application of the application, the function of the multiple technical characteristics quoted during a part possibility enforcement of rights requires.Any Reference numeral in claim should not be construed as the restriction to scope.
Claims (6)
1. an electroacoustic transducer, is characterized in that, this electroacoustic transducer comprises:
Housing, described housing has cavity, and comprises housing upper and lower housing portion;
Barrier film, described barrier film is arranged in described cavity, and described cavity is divided into ante-chamber and back cavity, and wherein said ante-chamber is adjacent with described housing upper, and described back cavity is adjacent with described lower housing portion; And
Motor sub-assembly, described motor sub-assembly is arranged in described back cavity, and comprises the armature that is couple to described barrier film and for driving the coil of described armature and described barrier film;
Wherein, described lower housing portion comprises shell cavity portion and sound tube body, and described shell cavity portion and described sound tube body form; Described sound tube body limits sound tube at least in part, and described sound tube is communicated with described ante-chamber by sound channel.
2. electroacoustic transducer according to claim 1, is characterized in that, described sound channel passes the part higher than barrier film of the described shell cavity portion sidewall adjacent with described sound tube body.
3. electroacoustic transducer according to claim 1, it is characterized in that, described housing upper comprises shell cavity cap and sound tube cap, and described sound tube cap and described sound tube body limit described sound tube jointly, and described sound channel is between described sound tube and described ante-chamber.
4. electroacoustic transducer according to claim 1, is characterized in that, shell cavity portion and the sound tube body of described lower housing portion are formed by molded and shaped process.
5. an audio frequency apparatus, is characterized in that, comprises electroacoustic transducer according to any one of claim 1 to 4.
6. audio frequency apparatus according to claim 5, is characterized in that, described audio frequency apparatus is hearing aids, inner ear type monitor, headphone or electronics hearing protection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520587248.2U CN204836567U (en) | 2015-08-06 | 2015-08-06 | Electroacoustic transducer and audio equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520587248.2U CN204836567U (en) | 2015-08-06 | 2015-08-06 | Electroacoustic transducer and audio equipment |
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| Publication Number | Publication Date |
|---|---|
| CN204836567U true CN204836567U (en) | 2015-12-02 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201520587248.2U Active CN204836567U (en) | 2015-08-06 | 2015-08-06 | Electroacoustic transducer and audio equipment |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107155145A (en) * | 2016-03-04 | 2017-09-12 | 铁三角有限公司 | Earphone |
| TWI663881B (en) * | 2017-01-13 | 2019-06-21 | 日商阿爾卑斯阿爾派股份有限公司 | Pronunciation device |
-
2015
- 2015-08-06 CN CN201520587248.2U patent/CN204836567U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107155145A (en) * | 2016-03-04 | 2017-09-12 | 铁三角有限公司 | Earphone |
| TWI663881B (en) * | 2017-01-13 | 2019-06-21 | 日商阿爾卑斯阿爾派股份有限公司 | Pronunciation device |
| US10735863B2 (en) | 2017-01-13 | 2020-08-04 | Alps Alpine Co., Ltd. | Sound producing device |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170613 Address after: Illinois State Patentee after: Knowles Electronics LLC Address before: Cao Chun Hing Lake Street road of Xiangcheng Economic Development Zone Suzhou city Jiangsu province 215143 No. 20 Patentee before: Knowles Electronics(Suzhou)Co., Ltd. |
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| TR01 | Transfer of patent right | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20170628 Address after: Malaysia Penang Patentee after: Lou IPC (Malaysia) Pte Ltd Address before: Illinois State Patentee before: Knowles Electronics LLC |