CN201878319U - Movable ring type electro-acoustic converter - Google Patents
Movable ring type electro-acoustic converter Download PDFInfo
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- CN201878319U CN201878319U CN2010205253850U CN201020525385U CN201878319U CN 201878319 U CN201878319 U CN 201878319U CN 2010205253850 U CN2010205253850 U CN 2010205253850U CN 201020525385 U CN201020525385 U CN 201020525385U CN 201878319 U CN201878319 U CN 201878319U
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Abstract
The utility model discloses a movable ring type electro-acoustic converter which comprises a vibrating system, a magnetic circuit system and a shell, wherein the vibrating system comprises a diaphragm and a voice coil; the magnetic circuit system comprises a washer, a magnet and a pan bracket which are combined with one another from top to bottom; the shell is correspondingly fixedly provided with the magnetic circuit system and the vibrating system of each magnetic circuit unit, and the bottom of the shell is closed to form into an outer frame of the movable ring type electro-acoustic converter; the inner side walls of the diaphragm and the shell, the bottom of the shell and the magnetic circuit system jointly form into an inner acoustic cavity of the movable ring type electro-acoustic converter by enclosure; and an active carbon is arranged on the inner wall of the shell which forms into the acoustic cavity. Due to the design, the defects of the existing structure can be improved, and the low-frequency performance of the movable ring type electro-acoustic converter can be enhanced.
Description
Technical field
The utility model relates to a kind of moving-coil type electro-acoustic conversing device, relates in particular to a kind ofly can increase the operatic tunes behind the moving-coil type electro-acoustic conversing device, improves the low frequency performance of moving-coil type electro-acoustic conversing device.
Background technology
Along with the development of portable terminal consumer electronics product, a large amount of electro-acoustic transducer device particularly moving-coil type moving-coil type electro-acoustic conversing device has obtained using widely.The operation principle of well-known moving-coil type electro-acoustic conversing device is, the voice coil loudspeaker voice coil that is connected with alternating current is subjected to Ampere force and makes vibration on the vibrational system generation vertical direction of moving-coil type electro-acoustic conversing device and sounding in magnetic field.
Known, the moving-coil type electro-acoustic conversing device of traditional structure generally also comprises shell and magnetic circuit system, vibrating diaphragm and shell, magnetic circuit system surround the operatic tunes of an inside, the moving-coil type electro-acoustic conversing device of this structure is when work, the vibration of vibrating diaphragm can be pushed the air in the operatic tunes, thereby the vibration to vibrating diaphragm produces resistance, influence the vibration of vibrating diaphragm, particularly at moving-coil type electro-acoustic conversing device during in low frequency operation, reduction along with sound pressure level, can not fully realize low Sound reproducing, influence the acoustical behavior of moving-coil type electro-acoustic conversing device.As be applied in the moving-coil type electro-acoustic conversing device of electronic components such as LCD, PDP, and for the occupied space of the size that reduces electroacoustic transducer and promote operating power, generally it being designed to strip, this defective can be more obvious.
So, be necessary the moving-coil type electro-acoustic conversing device of said structure is further improved, to avoid above-mentioned defective.
The utility model content
The utility model is made in order to solve above-mentioned problems of the prior art, its purpose is to provide a kind of design that can increase the inner operatic tunes of moving-coil type electro-acoustic conversing device space, improve the existing defective of structure in the past, can improve the low frequency performance of moving-coil type electro-acoustic conversing device.
To achieve these goals, a kind of moving-coil type electro-acoustic conversing device that the utility model provides comprises: vibrational system comprises vibrating diaphragm and voice coil loudspeaker voice coil; Magnetic circuit system comprises the washer, magnet and the basin frame that combine from top to bottom; Shell, the magnetic circuit system and the vibrational system of corresponding fixing described each magnetic circuit unit of described shell, the bottom closure of shell forms the external frame of moving-coil type electro-acoustic conversing device; The madial wall of described vibrating diaphragm, described shell and outer casing bottom, and described magnetic circuit system surrounds the inside operatic tunes of described moving-coil type electro-acoustic conversing device jointly; It is characterized in that the inwall that forms the shell of the described operatic tunes is provided with active carbon.
As a kind of improvement, described active carbon is arranged on the sidewall of the described operatic tunes shell of described formation.
As a kind of improvement, described shell is a plastic casing, comprise the support portion that wraps described magnetic circuit system, described support portion and magnetic circuit system are divided into first operatic tunes and second operatic tunes with the described operatic tunes, and described first operatic tunes and described second operatic tunes are communicated with by the sound hole that is provided with on the shell support portion.
As a kind of improvement, described moving-coil type electro-acoustic conversing device is an independently electroacoustic transduction unit; Described active carbon is arranged on the shell madial wall of first operatic tunes and/or second operatic tunes.
As a kind of improvement, described moving-coil type electro-acoustic conversing device comprises a plurality of independently electroacoustic transductions unit, and second operatic tunes of described a plurality of electroacoustic transductions unit communicates, and the pairing shell in two adjacent electroacoustic transduction unit in described second operatic tunes is provided with active carbon.
As a kind of improvement, the number of the electroacoustic transduction unit of described moving-coil type electro-acoustic conversing device is three.
As a kind of improvement, the bottom of described shell is provided with the bottom lock that foam makes described shell.
As a kind of improvement, described electroacoustic transduction also is provided with centring disk on the unit, and an end of described centring disk is fixed described vibrational system, and the other end is fixed on the described shell.
As a kind of improvement, described moving-coil type electro-acoustic conversing device is a strip.
According to said structure, than conventional art, improved the existing defective of structure in the past, can improve the low frequency performance of moving-coil type electro-acoustic conversing device.
Description of drawings
Fig. 1 is the exploded perspective view of the concrete structure of the moving-coil type electro-acoustic conversing device that relates to of expression embodiment one of the present utility model.
Fig. 2 is the cross-sectional view of this moving-coil type electro-acoustic conversing device of expression.
Fig. 3 is the shell mechanism schematic diagram of this moving-coil type electro-acoustic conversing device of expression.
Fig. 4 is the cross-sectional view of the moving-coil type electro-acoustic conversing device that relates to of expression embodiment two of the present utility model.
Fig. 5 is the cross-sectional view of the moving-coil type electro-acoustic conversing device that relates to of expression embodiment three of the present utility model.
Embodiment
Below, with embodiment the utility model is done detailed description in conjunction with the accompanying drawings.
In the following description, only some one exemplary embodiment of the present utility model has been described by the mode of explanation.Undoubtedly, those of ordinary skill in the art can recognize, under the situation that does not depart from spirit and scope of the present utility model, can revise described embodiment with various mode.Therefore, accompanying drawing and be described in just illustratively in essence rather than is used to limit the protection range of claim.In addition, in this manual, identical Reference numeral indicates identical part.
Embodiment one:
Fig. 1 is the exploded perspective view of the concrete structure of the moving-coil type electro-acoustic conversing device that relates to of expression embodiment of the present utility model; The cross-sectional view of representing this moving-coil type electro-acoustic conversing device.As depicted in figs. 1 and 2, moving-coil type electro-acoustic conversing device comprises an independently electroacoustic transduction unit, its periphery is the strip structure, comprises the shell 1 of plastic material, vibrational system 2 and magnetic circuit system 3, the bottom of shell 1 is a closing structure, is provided with foam 6 in the bottom of shell 1.Vibrational system 2 comprises the vibrating diaphragm 21 that partly is made of the ball top portion of rigidity and flexible ring, and voice coil loudspeaker voice coil 22; Between vibrating diaphragm 21 and voice coil loudspeaker voice coil 22, also be equipped with and prevent that moving-coil type electro-acoustic conversing device from producing the centring disk 4 of polarization, the edge junction of centring disk 4 is combined on the shell 1, magnetic circuit system 3 comprises washer 31, magnet 32 and the basin frame 33 that combines from top to bottom, basin frame 33 is a peviform, be injection-moulded in and wrapped with shell 1, thereby vibrating diaphragm 21 and shell 1, magnetic circuit system 3 surround the inside operatic tunes of moving-coil type electro-acoustic conversing device jointly by shell 1.
Fig. 3 is the shell mechanism schematic diagram of this moving-coil type electro-acoustic conversing device of expression, as shown in Figure 3, shell 1 comprises the support portion 11 of support fixation magnetic circuit system 3, thereby support portion 11 is divided into top-down first operatic tunes and second operatic tunes with the described operatic tunes, and first operatic tunes and second operatic tunes are realized being communicated with by some holes that are provided with on the support portion 11.And the madial wall of the pairing shell 1 of described first operatic tunes is provided with active carbon 5.
By above-mentioned design: active carbon is arranged on the sidewall of shell of moving-coil type electro-acoustic conversing device first operatic tunes, can increase the volume of this inside operatic tunes, when vibrating diaphragm vibrates, reduce the inhibition of inner air to vibrating diaphragm, improve the frequency acoustic performance of moving-coil type electro-acoustic conversing device; Simultaneously, because when the vibrating diaphragm vibration sounding, active carbon is arranged on the madial wall, can better absorb sound wave, better reduce acoustic pressure influence to operatic tunes inside.Active carbon is arranged on the main position setting of considering phonate hole on the madial wall in this implementation process, and wait on other position the bottom that can certainly be arranged on shell, all can realize identical technique effect.
Embodiment two:
Below, the concrete structure of the miniature moving-coil type electroacoustic transducer that the utility model embodiment two relates to is described with reference to Fig. 4.
Fig. 4 is the cross-sectional view of the moving-coil type electro-acoustic conversing device that relates to of expression embodiment two of the present utility model.As shown in Figure 4, the main difference of this implementation process and the foregoing description is, the active carbon 5 in this implementation process is arranged on the madial wall of the pairing shell 1 of second operatic tunes of moving-coil type electro-acoustic conversing device.When moving-coil type electro-acoustic conversing device was worked, the enforcement of present design can realize the technique effect of above-mentioned implementation process equally.Certainly, also can be simultaneously in this implementation process in first operatic tunes of moving-coil type electro-acoustic conversing device and second operatic tunes, active carbon be set, influence the enforcement of the invention.
Embodiment three:
Below, the concrete structure of the miniature moving-coil type electroacoustic transducer that the utility model embodiment three relates to is described with reference to Fig. 5.
Fig. 5 is the cross-sectional view of the moving-coil type electro-acoustic conversing device that relates to of expression embodiment three of the present utility model, as shown in Figure 5, this implementation process and the main distinction of the foregoing description be the structure of moving-coil type electro-acoustic conversing device unit and active carbon that the position is set is different, in the present embodiment, the electroacoustic transduction unit of moving-coil type electro-acoustic conversing device is three, and three electroacoustic transduction unit combine by shell 1 ' one and are spaced from each other.In each electroacoustic transduction unit, shell 1 ' comprises the support portion 11 ' of support fixation magnetic circuit system 3, thereby support portion 11 ' is divided into top-down first operatic tunes and second operatic tunes with the operatic tunes of electroacoustic transduction unit, first operatic tunes and second operatic tunes are realized being communicated with by some holes that are provided with on the support portion 11, the bottom of second operatic tunes is a foam 6 ', and: second operatic tunes of three electroacoustic transduction unit communicates, and the pairing shell 1 ' in two adjacent electroacoustic transduction unit in second operatic tunes is provided with active carbon 5 '.
For further improving performance, in this implementation process, on the madial wall of the pairing shell 1 ' of first operatic tunes of each moving-coil type electro-acoustic conversing device electroacoustic transduction unit, also be provided with active carbon 5 '.
This design by on the shell between two adjacent in second operatic tunes electroacoustic transduction unit active carbon being set, can avoid the sound wave of two electroacoustic transduction unit to produce collision on adjacent shell, causes the defective on the performance.
In the utility model, support portion second operatic tunes is set only for producing preferred version in the design on shell, also can only be provided with first operatic tunes, foam adopts the part of shell to replace the neither enforcement that influences the invention.
Should be noted that 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 improve and deformed configurations also all falls in the protection range of the present utility model.It will be understood by those skilled in the art that above-mentioned specific descriptions just are used to explain the purpose of this utility model, protection range of the present utility model is limited by claim and equivalent thereof.
Claims (9)
1. moving-coil type electro-acoustic conversing device comprises:
Vibrational system comprises vibrating diaphragm and voice coil loudspeaker voice coil;
Magnetic circuit system comprises the washer, magnet and the basin frame that combine from top to bottom;
Shell, the magnetic circuit system and the vibrational system of corresponding fixing described each magnetic circuit unit of described shell, the bottom closure of shell forms the external frame of moving-coil type electro-acoustic conversing device;
The madial wall of described vibrating diaphragm, described shell and outer casing bottom, and described magnetic circuit system surrounds the inside operatic tunes of described moving-coil type electro-acoustic conversing device jointly;
It is characterized in that,
The inwall that forms the shell of the described operatic tunes is provided with active carbon.
2. moving-coil type electro-acoustic conversing device as claimed in claim 1 is characterized in that,
Described active carbon is arranged on the sidewall of the described operatic tunes shell of described formation.
3. moving-coil type electro-acoustic conversing device as claimed in claim 1 or 2 is characterized in that,
Described shell is a plastic casing, comprise the support portion that wraps described magnetic circuit system, described support portion and magnetic circuit system are divided into first operatic tunes and second operatic tunes with the described operatic tunes, and described first operatic tunes and described second operatic tunes are communicated with by the sound hole that is provided with on the shell support portion.
4. moving-coil type electro-acoustic conversing device as claimed in claim 3 is characterized in that,
Described moving-coil type electro-acoustic conversing device is an independently electroacoustic transduction unit; Described active carbon is arranged on the shell madial wall of first operatic tunes and/or second operatic tunes.
5. moving-coil type electro-acoustic conversing device as claimed in claim 3 is characterized in that,
Described moving-coil type electro-acoustic conversing device comprises a plurality of independently electroacoustic transductions unit, and second operatic tunes of described a plurality of electroacoustic transductions unit communicates, and the pairing shell in two adjacent electroacoustic transduction unit in described second operatic tunes is provided with active carbon.
6. moving-coil type electro-acoustic conversing device as claimed in claim 5 is characterized in that,
The number of the electroacoustic transduction unit of described moving-coil type electro-acoustic conversing device is three.
7. moving-coil type electro-acoustic conversing device as claimed in claim 1 is characterized in that,
The bottom of described shell is provided with the bottom lock that foam makes described shell.
8. moving-coil type electro-acoustic conversing device as claimed in claim 1 is characterized in that,
Described electroacoustic transduction also is provided with centring disk on the unit, and an end of described centring disk is fixed described vibrational system, and the other end is fixed on the described shell.
9. moving-coil type electro-acoustic conversing device as claimed in claim 1 is characterized in that,
Described moving-coil type electro-acoustic conversing device is a strip.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205253850U CN201878319U (en) | 2010-09-04 | 2010-09-04 | Movable ring type electro-acoustic converter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010205253850U CN201878319U (en) | 2010-09-04 | 2010-09-04 | Movable ring type electro-acoustic converter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201878319U true CN201878319U (en) | 2011-06-22 |
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ID=44166226
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010205253850U Ceased CN201878319U (en) | 2010-09-04 | 2010-09-04 | Movable ring type electro-acoustic converter |
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| Country | Link |
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| CN (1) | CN201878319U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103220606A (en) * | 2012-01-20 | 2013-07-24 | 中华大学 | Electro-acoustic transducer and manufacturing method thereof |
| CN105187960A (en) * | 2015-07-20 | 2015-12-23 | 瑞声光电科技(常州)有限公司 | Sound production device and method for making same |
| US11356767B2 (en) | 2019-08-02 | 2022-06-07 | Samsung Electronics Co., Ltd. | Speaker module including air adsorption member, and electronic device including the same |
-
2010
- 2010-09-04 CN CN2010205253850U patent/CN201878319U/en not_active Ceased
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103220606A (en) * | 2012-01-20 | 2013-07-24 | 中华大学 | Electro-acoustic transducer and manufacturing method thereof |
| CN103220606B (en) * | 2012-01-20 | 2015-10-21 | 中华大学 | Electroacoustic transducer and manufacture method thereof |
| CN105187960A (en) * | 2015-07-20 | 2015-12-23 | 瑞声光电科技(常州)有限公司 | Sound production device and method for making same |
| CN105187960B (en) * | 2015-07-20 | 2018-09-07 | 瑞声光电科技(常州)有限公司 | The method for making microphone device |
| US11356767B2 (en) | 2019-08-02 | 2022-06-07 | Samsung Electronics Co., Ltd. | Speaker module including air adsorption member, and electronic device including the same |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C35 | Partial or whole invalidation of patent or utility model | ||
| IW01 | Full invalidation of patent right |
Decision date of declaring invalidation: 20130819 Decision number of declaring invalidation: 21191 Granted publication date: 20110622 |