CN109862499A - High-performance acoustic-electric modulus of conversion group, high-power hearing aid module and ear-level hearing aid - Google Patents
High-performance acoustic-electric modulus of conversion group, high-power hearing aid module and ear-level hearing aid Download PDFInfo
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- CN109862499A CN109862499A CN201910266131.7A CN201910266131A CN109862499A CN 109862499 A CN109862499 A CN 109862499A CN 201910266131 A CN201910266131 A CN 201910266131A CN 109862499 A CN109862499 A CN 109862499A
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Abstract
This application involves a kind of simple, the powerful high-performance acoustic-electric modulus of conversion group of design, high-power hearing aid module and ear-level hearing aids, one of high-performance acoustic-electric modulus of conversion group, including the sounding part for generating voice signal and for exporting voice signal to external output, its further include: the output end of connection hose, sounding part is connected to the input terminal of output by connecting hose.High-performance acoustic-electric modulus of conversion group in the high-performance acoustic-electric modulus of conversion group of the application, high-power hearing aid module and ear-level hearing aid, the output end of sounding part and the input terminal of output are respectively communicated with by connecting tube pipe, reduce the vibration being transferred on output when the work of sounding part, then greatly reduce the resonance for even being eliminated and causing equipment or apparatus casing, to the sound feedback effect generated when realizing that reduction even is eliminated the work of sounding part, the output power of high-performance acoustic-electric modulus of conversion group is greatly improved, to reduce the energy consumption of product.
Description
Technical field
This application involves high-performance acoustic-electric modulus of conversion group, high-power hearing aid module and ear-level hearing aids.
Background technique
Hearing aid is a kind of device for facilitating hearing disabilities person's improvement dysacousis, and working method is general are as follows: passes through
External voice is received, and then processing is carried out to which sound is effectively passed to human body ear to sound.
Hearing aid in the prior art is typically provided with electroacoustic modulus of conversion group, is received in hearing aid using control circuit board
Corresponding electric signal is generated after external voice, then hearing aid passes through electroacoustic modulus of conversion group again and converts the electrical signal to sound letter
Number, it is then directly or indirectly exported again by sound tube to human body ear, to realize conversion of the hearing aid to sound.
Wherein electroacoustic modulus of conversion group makes a sound signal using vibration principle, and electroacoustic modulus of conversion group is generally directly fixed on
On hearing aid hous, therefore, hearing aid is easy in Transform Acoustic while generating vibration, and vibrates the sound feedback effect meeting generated
It influences even to offset the voice signal that human body ear in part receives hearing aid output, leads to the sound output work for reducing hearing aid
Rate increases the kwh loss of hearing aid, reduces the cruise duration of product.
Summary of the invention
The small technical problem of sound feedback effect reduction sound output power is generated in order to solve above-mentioned hearing aid vibration, this
Application provides a kind of simple, the powerful high-performance acoustic-electric modulus of conversion group of design, high-power hearing aid module and behind-the-ear hearing aid
Device.
According to a first aspect of the present application, the application provides a kind of high-performance acoustic-electric modulus of conversion group, including for generating sound
The sounding part of sound signal and for exporting voice signal to external output, further include: connection hose, sounding part
Output end is connected to the input terminal of output by connecting hose.
According to the embodiment of the application, connecting hose has bending part, deposits the axial line of sounding part and output
In angle.
According to the embodiment of the application, reinforcing rib is provided on bending part.
According to the embodiment of the application, sounding part outer wall is arranged with cushion collar, and cushion collar is provided with buffer strip.
According to the embodiment of the application, the outer wall of output is provided with installation card slot.
According to a second aspect of the present application, the application provides a kind of high-power hearing aid module, including control panel, microphone
And high-performance acoustic-electric modulus of conversion group, control panel are electrically connected with microphone and high-performance acoustic-electric modulus of conversion group respectively, Gao Xing
Can acoustic-electric modulus of conversion group include sounding part for generating voice signal and for exporting voice signal to external output
Part, high-performance acoustic-electric modulus of conversion group further include connection hose, and the output end of sounding part and the input terminal of output are soft by connecting
Pipe connection.
According to the embodiment of the application, high-power hearing aid module further includes integrated fixed frame, integrated fixed frame tool
There are mutually isolated the first mounting portion and the second mounting portion, microphone is installed on the first mounting portion, high-performance acoustic-electric modulus of conversion
Group is installed on the second mounting portion.
According to the embodiment of the application, sounding part, which does not contact, is set to the second mounting portion.
According to the third aspect of the application, the application provides a kind of ear-level hearing aid, including shell and is set to shell
Intracorporal high-power hearing aid module, high-power hearing aid module include control panel, microphone and high-performance acoustic-electric modulus of conversion
Group, control panel are electrically connected with microphone and high-performance acoustic-electric modulus of conversion group respectively, and high-performance acoustic-electric modulus of conversion group includes: use
In the sounding part for generating voice signal and for exporting voice signal to external output, high-performance acoustic-electric modulus of conversion group
It further include connection hose, the output end of sounding part is connected to the input terminal of output by connecting hose.
According to the embodiment of the application, ear-level hearing aid further include: integrated fixed frame, integrated fixed frame have phase
The first mounting portion and the second mounting portion being mutually isolated, wherein the first mounting portion and the second mounting portion are respectively formed phase with shell
The first cavity and the second cavity being mutually isolated, microphone are installed on the first mounting portion and are located in the first cavity, high-performance sound
Electric modulus of conversion group is installed on the second installation position in the second cavity.
High-performance sound in the high-performance acoustic-electric modulus of conversion group of the application, high-power hearing aid module and ear-level hearing aid
Electric modulus of conversion group is respectively communicated with the output end of sounding part and the input terminal of output by a connecting tube pipe, reduces sounding part
The vibration being transferred on output when work then greatly reduces the resonance for even being eliminated and causing equipment or apparatus casing, from
And realizing reduces the sound feedback effect for even being eliminated and generating when the work of sounding part, greatly improves high-performance acoustic-electric modulus of conversion group
Output power, to reduce the energy consumption of product.
Detailed description of the invention
Fig. 1 is high-performance acoustic-electric modulus of conversion group perspective view in the application.
Fig. 2 is the detonation configuration figure of the application Chungerpei formula hearing aid.
Fig. 3 is the cross-sectional view of the application Chungerpei formula hearing aid.
Fig. 4 is the structural schematic diagram of integrated fixed frame in the application.
Fig. 5 is the assembling schematic diagram of shell and integrated fixed frame in an embodiment.
Specific embodiment
Elastic slice is connected to the application below in conjunction with specific embodiments and drawings to be described in further detail.
It please refers to shown in Fig. 1, is high-performance acoustic-electric modulus of conversion group perspective view in the application.
The application provides a kind of high-performance acoustic-electric modulus of conversion group 100, is mainly used for converting electrical signals into voice signal
And export, the high-performance acoustic-electric modulus of conversion group 100 of the application can be applied to hearing assistance devices, such as hearing aid.
High-performance acoustic-electric modulus of conversion group 100 includes sounding part 101 for generating voice signal and for believing sound
Number output is to external output 102, and wherein sounding part 101 is conventional loudspeaker, loudspeaker, receiver etc., of course, sounding
Part 101 can also can convert electrical signals to the components of voice signal for other.The output end of output 102 and sounding part 101
It directly or indirectly connects, in this way, which the voice signal that sounding part 101 generates can be delivered to outside by output 102, specifically
, output 102 is that tubulose or output 102 are equipped with tubular conduit, in this way, convenient for output 102 and sounding part 101
Output end connection, when output 102 be tubulose when, easily facilitate the fixed installation of output 102.In this application, high
Performance acoustic-electric modulus of conversion group 100 further includes connection hose 103, the material system for the elastic force that connection hose 103 is had using rubber etc.
At so that connection hose 103 has and supports or the elasticity of fixed sounding part 101, wherein the output end of sounding part 101 with it is defeated
The input terminal of part 102 is connected to by connection hose 103 out, in this way, the voice signal that sounding part 101 generates passes through connection hose
103 are transmitted to output 102, while sounding part 101 is fixed on the input terminal of output 102 by connecting hose 103, is realized
The installation of connection and sounding part 101 between the two.High-performance acoustic-electric modulus of conversion group 100 is fixedly mounted by output 102
Mode be installed on the shell of equipment, for example, being provided with the installation card for installing fixed output 102 on output 102
Slot 1021, output 102 are arranged on the upper corresponding position of equipment by installing card slot 1021, realize the conversion of high-performance acoustic-electric
The installation of mould group 100 is fixed, and is fixedly installed in equipment of course, other modes also can be used in output 102, such as by viscous
Glue is fixed.When sounding part 101 works, the voice signal that sounding part 101 generates is transmitted to output via connection hose 103
102, then exported by output 102, after the vibration that wherein sounding part 101 generates is transferred to connection hose 103, by connection hose
103 carry out buffering counteracting, in this way, reduce the vibration being transferred on output 102 when sounding part 101 works, then significantly
The resonance for causing equipment or apparatus casing is decreased or even eliminated, to realize that reduction even is eliminated production when sounding part 101 works
Raw sound feedback effect greatly improves the output power of high-performance acoustic-electric modulus of conversion group 100, to reduce the energy consumption of product.
Please continue to refer to shown in Fig. 1, in one embodiment, connection hose 103 is made by the way of injection molding, and
To improve the stability that connects between sounding part 101, output 102 and connection hose 103, connection hose 103 respectively with hair
The connection of sound part 101 and output 102 is equally using integrated molding design, that is to say, that connection hose 103 is in injection molding
It carries out connecting with the input terminal of the output end of sounding part 101 and output 102 simultaneously, in this way, to connect hose 103
Both ends more matched with sounding part 101 and output 102 respectively, while to connect hose 103 and sounding part 101 and
The connection of output 102 is stronger.
Please continue to refer to shown in Fig. 1, in one embodiment, connection hose 103 has bending part 1031, so that connection hose
103 be non-linear shape, that is to say, that connection hose 1031 be L shape or be intended to L shape, in this way, make sounding part 101 with it is defeated
There are angles for the axial line of part 102 out, reduce sounding part 101 because the vibration generated when work is caused by connection hose 103
Oscillator arc, so that it is further reduced the vibration being transferred on output 102, when wherein minimum angle is 90 degree to 145 degree, hair
The oscillator arc of sound part 101 is smaller.In another embodiment, it connects on hose 103 and is provided with reinforcing rib 1032, wherein reinforcing rib
1032 are located on bending part 1031, increase connection 103 hardness of hose by reinforcing rib 1032, and then promote connection hose 103
Durability degree, while further decreasing the oscillator arc on the connection hose 103 of sounding part more than 101.
Please continue to refer to shown in Fig. 1, in another embodiment, high-performance acoustic-electric modulus of conversion group 100 is additionally provided with a buffering
Set 104, wherein cushion collar 104 is sheathed on the outer wall of sounding part 101, and cushion collar 104 uses rubber material, utilizes cushion collar 104
Sounding part 101 is protected, avoids sounding part 101 in the case where oscillator arc is excessive, sounding part 101 is directly hit to setting
Standby shell passes through cushion collar for example, product, by falling in the air, the impact of generation can cause sounding part 101 significantly to be moved
104 realize protection to sounding part 101, specifically, the buffer strip 1041 being provided on sounding set 104, buffer strip 1041 can be by
Single or multiple convex compositions of strip, and buffer strip 1041 extends on multiple sides of cushion collar 104, realizes to sounding part
101 comprehensive protection.
Please also refer to shown in Fig. 2 to 3, the respectively detonation configuration figure and section view of the application Chungerpei formula hearing aid
Figure.
The application also provides a kind of high-power hearing aid module, is mainly used for hearing aid, high-power hearing aid module packet
Include high-performance acoustic-electric modulus of conversion group 100, control panel 200 and microphone 300, wherein control panel 200 respectively with microphone 300 with
And the electric 100 property connection of high-performance acoustic-electric modulus of conversion group, wherein the structure of high-performance acoustic-electric modulus of conversion group 100 and working principle be such as
Noted earlier, details are not described herein again.The high-power hearing aid module of the application because of high-performance acoustic-electric modulus of conversion group 100 at work
Generated sound feedback effect, which reduces, not to be generated even, so that the high-power hearing aid analog sound output rating of the application is high,
In this way, which user is not necessarily to improve volume to improve the clarity of voice signal, product energy consumption is reduced.
Please also refer to the structural schematic diagram for shown in Fig. 4, being integrated fixed frame in the application, in one embodiment, greatly
Power hearing aid module further includes integrated fixed frame 400, wherein high-performance acoustic-electric modulus of conversion group 100, control panel 200 and Mike
Wind 300 is each attached on integrated fixed frame 400, wherein passes through the installation card of output 102 in high-performance acoustic-electric modulus of conversion group 100
Slot 1021 is arranged on integrated fixed frame 400, and wherein control panel 200 and 300 mounting means of microphone are using the prior art
In screw fix, viscose glue one of is fixed or mode is welded and fixed or multiple combinations, in this way, which high-power help
It listens and is integral structure in device modular structure, greatly improve the packaging efficiency in subsequent hearing aid production process.
Please continue to refer to shown in Fig. 3 to 4, in another embodiment, it is provided on integrated fixed frame 400 mutually isolated
First mounting portion 401 and the second mounting portion 402, that is to say, that the first mounting portion 401 and the second mounting portion 402 structure with
And spatially there is no influencing each other, wherein microphone 300 is installed on the first mounting portion 401, high-performance acoustic-electric modulus of conversion group 100
It is installed on the second mounting portion 402, of course, the installation site of microphone 300 and high-performance acoustic-electric modulus of conversion group 10 is also adjustable
It changes, high-performance acoustic-electric modulus of conversion group 100 and microphone 300 is installed by two different mounting portions 401, eliminate high
Influencing each other between performance acoustic-electric modulus of conversion group 100 and microphone 300, to guarantee high-performance acoustic-electric modulus of conversion group 100
Sound output power and microphone 300 obtain the clarity of external sound.It is otherwise noted that sounding part 101 does not connect
Touching is set to the second mounting portion 402, that is to say, that and sounding part 101 is vacantly arranged relative to the second mounting portion 401, in this way,
The vibration that sounding part 101 is transferred on integrated fixed frame 400 is substantially reduced, to guarantee the sound output power of sounding part 101.
Please continue to refer to shown in Fig. 2 to 4, in another embodiment, high-power hearing aid module further includes for connecting electricity
The electrode slice 500 in pond, electrode slice 500 and control panel are electrically connected, corresponding, and third peace is provided on integrated fixed frame 400
Dress portion 403, third mounting portion 403 are isolated with the first mounting portion 401 with the second mounting portion 402 respectively, and electrode slice 500 can pass through spiral shell
The fixed mode of silk is installed to third mounting portion 403, in this way, improve the stability in battery product operational process.
Please continue to refer to shown in Fig. 2 to 3, in one embodiment, high-power hearing aid module is additionally provided with volume adjustment rolling
Wheel 600, volume adjustment idler wheel 600 and control panel 200 are electrically connected, by volume adjustment idler wheel 600 convenient for users to sounding
The power of part 101 is adjusted, and improves the convenience of product.
Please continue to refer to shown in Fig. 2 to 3, in one embodiment, high-power hearing aid module is additionally provided with and control panel 200
The frequency modulator 700 of electric connection adjusts the sound frequency of high-power hearing aid module output by frequency modulator 700, so that
Product is applicable in the patient of different demands, improves the scope of application of product.
Please continue to refer to shown in Fig. 2 to 3, in another embodiment, high-power hearing aid module is additionally provided with and control panel
200 control switches 800 being electrically connected control high-power hearing aid module by control switch 800 and open, thus convenient to use
Person uses the management of product.
Please continue to refer to shown in Fig. 2 to 4, present invention also provides a kind of ear-level hearing aids comprising shell 900 and
The high-power hearing aid module being set in shell 900 is wherein provided with multiple and integrated 400 shape of fixed frame in shell 900
Matched groove, integrated fixed frame 400 are arranged in the groove and realize its fixation being located in shell 900, set on output 102
It is equipped with the installation card slot 1021 for fixed installation, high-performance acoustic-electric modulus of conversion group 100 passes through the installation card slot of output 102
1021 are arranged in shell 900 and integrated fixed frame 400 simultaneously to realize the fixed peace of high-performance acoustic-electric modulus of conversion group 100
Dress, wherein the structure of high-power hearing aid module and working principle are as previously described, and details are not described herein again.
Please also refer to the assembling schematic diagram for shown in Fig. 5, being shell and integrated fixed frame in an embodiment, implement one
In example, between the first mounting portion 401 of integrated fixed frame 400, the second mounting portion 402 and third mounting portion 403 and shell 900
It is respectively formed the first mutually isolated cavity 901, the second cavity 902 and third cavity 903.Microphone 300 is installed on first
Mounting portion 401 is simultaneously located in the first cavity 901, and high-performance acoustic-electric modulus of conversion group 100 is installed on the second mounting portion 402 and is located at the
High-performance acoustic-electric modulus of conversion group 100 and microphone 300 is respectively set by two mutually isolated cavitys, so in two cavitys 902
One, so that high-performance acoustic-electric modulus of conversion group 100 and microphone 300 are each positioned at work in an independent cavity, that is to say, that wheat
Gram wind 300 is located at work in the first cavity 901, and high-performance acoustic-electric modulus of conversion group 100 is located at the second cavity 902 and works, so that ear
Back formula hearing aid obtains sound and different channels are respectively adopted in output sound, so that ear-level hearing aid be avoided to be obtained
It interacts when sound and output sound, to greatly improve the output rating of sound.Wherein third cavity 903 is for installing electricity
Pond, electrode slice 500 are located in third cavity 903, guarantee the stability of the power supply of product.
Please continue to refer to shown in Fig. 5, in another embodiment, shell 900 is provided with the battery of corresponding third cavity 903
Spiral cover 904, battery spiral cover 904 is rotated by way of buckle to be covered on shell 900, wherein when battery spiral cover 904 is covered on
When on shell 900, electrode slice 500 is connected with battery, and when opening battery spiral cover 904, electrode slice 500 and battery are disconnected, and such one
Come, the management convenient for user to battery, specifically, the battery settling groove for placing battery can be opened up on battery spiral cover 904
9041, when battery spiral cover 904 is closed, electrode slice 500 wears the contact conducting of 9041 battery of battery settling groove.
Please continue to refer to shown in Fig. 2 to 3, in another embodiment, ear-level hearing aid further includes tack 1000, tack
1000 shapes are matched with the hard of hearing shape of human body, and wherein one end of output 102 connects after being pierced by shell 900 with 1000 screw thread of tack
It connects, tack 1000 is facilitated to repair and replace, tack 1000 offers leading note channel 1001, and tack is run through in leading note channel 1001
1000 and be connected to output 102, in this way, the sound that exports of output 102 by leading note channel 1001 be delivered to
The ear phone structure of 1000 one end of tack connection.
In the ear-level hearing aid of this life application, wear corresponding with volume adjustment idler wheel 600 is provided on shell 900
Hole, in this way, which volume adjustment idler wheel 600 can be directly by being pierced by outside shell 900, convenient for user to volume inside shell 900
Regulation.The frequency modulation spiral cover 905 of corresponding frequency modulator 700 is additionally provided on shell 900, when needing to carry out frequency modulation, by opening frequency modulation
Spiral cover 905 can carry out frequency modulation operation to frequency modulator 700, in this way, prevent dust from entering frequency modulator by frequency modulation spiral cover 905
In 700, guarantee the job stability of frequency modulator 700.
In conclusion in the high-performance acoustic-electric modulus of conversion group of the application, high-power hearing aid module and ear-level hearing aid
High-performance acoustic-electric modulus of conversion group, the output end of sounding part and the input terminal of output are respectively communicated with by a connecting tube pipe,
It is transferred to vibration on output when reducing the work of sounding part, then greatly reduces even to be eliminated and causes equipment or apparatus casing
Resonance greatly improve high-performance acoustic-electric to realize the sound feedback effect that generates when reduction even is eliminated the work of sounding part
The output power of modulus of conversion group, to reduce the energy consumption of product.
In the description of the present application, it is to be understood that term such as "upper", "lower", "front", "rear", "left", "right",
The orientation or positional relationship of the instructions such as "vertical", "horizontal", "top", "bottom" "inner", "outside" be orientation based on the figure or
Positional relationship is merely for convenience of description the application and simplifies description, rather than the device or element of indication or suggestion meaning must
There must be specific orientation, be constructed and operated in a specific orientation, therefore should not be understood as the limitation to the application.
In addition, term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance
Or implicitly indicate the quantity of indicated technical characteristic.Define " first " as a result, the feature of " second " can be expressed or
Implicitly include one or more of the features.In the description of the present application, the meaning of " plurality " is two or more,
Unless otherwise specifically defined.
In this application unless specifically defined or limited otherwise, term " installation ", " connected ", " connection ", " fixation " etc.
Term shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；It can be mechanical connect
It connects, is also possible to be electrically connected；It can be directly connected, can also can be in two elements indirectly connected through an intermediary
The interaction relationship of the connection in portion or two elements.It for the ordinary skill in the art, can be according to specific feelings
Condition understands the concrete meaning of above-mentioned term in this application.
Although being carried out to the description of the present application combination embodiments above, those skilled in the art
Member can carry out many replacements based on the above contents, modifications and variations, be obvious.Therefore, all such substitutions,
Improvements and changes are included in the spirit and scope of appended claims.
Claims (10)
1. a kind of high-performance acoustic-electric modulus of conversion group, including the sounding part for generating voice signal and for voice signal is defeated
Out to external output, which is characterized in that its further include: connection hose, the output end of the sounding part and output it is defeated
Enter end and passes through connection hose connection.
2. high-performance acoustic-electric modulus of conversion group according to claim 1, which is characterized in that the connection hose has bending
Portion, making the axial line of the sounding part and output, there are angles.
3. high-performance acoustic-electric modulus of conversion group according to claim 2, which is characterized in that be provided with reinforcement on the bending part
Muscle.
4. high-performance acoustic-electric modulus of conversion group according to claim 1, which is characterized in that the sounding part outer wall is arranged with slow
Punching set, the cushion collar are provided with buffer strip.
5. high-performance acoustic-electric modulus of conversion group according to claim 1, which is characterized in that the outer wall of the output is provided with
Card slot is installed.
6. a kind of high-power hearing aid module, including control panel, microphone and high-performance acoustic-electric modulus of conversion group, the control panel
It is electrically connected respectively with microphone and high-performance acoustic-electric modulus of conversion group, the high-performance acoustic-electric modulus of conversion group includes: for producing
Give birth to the sounding part of voice signal and for exporting voice signal to external output, which is characterized in that the high-performance
Acoustic-electric modulus of conversion group further include: connection hose, the output end of the sounding part and the input terminal of output are connected by connection hose
It is logical.
7. high-power hearing aid module according to claim 6, which is characterized in that its further include: integrated fixed frame, it is described
Integrated fixed frame has mutually isolated the first mounting portion and the second mounting portion, and the microphone is installed on the first mounting portion,
The high-performance acoustic-electric modulus of conversion group is installed on the second mounting portion.
8. high-power hearing aid module according to claim 7, which is characterized in that the sounding part, which does not contact, is set to institute
State the second mounting portion.
9. a kind of ear-level hearing aid, including shell and it is set to the intracorporal high-power hearing aid module of the shell, it is high-power
Hearing aid module includes control panel, microphone and high-performance acoustic-electric modulus of conversion group, the control panel respectively with microphone and
High-performance acoustic-electric modulus of conversion group is electrically connected, and the high-performance acoustic-electric modulus of conversion group includes: the sounding for generating voice signal
Part and for exporting voice signal to external output, which is characterized in that the high-performance acoustic-electric modulus of conversion group is also wrapped
Include: the output end of connection hose, the sounding part is connected to the input terminal of output by connecting hose.
10. ear-level hearing aid according to claim 9, which is characterized in that its further include: integrated fixed frame, described one
Body fixed frame has mutually isolated the first mounting portion and the second mounting portion, wherein first mounting portion and the second installation
Portion and shell are respectively formed mutually isolated the first cavity and the second cavity, and the microphone is installed on the first mounting portion and position
In in first cavity, the high-performance acoustic-electric modulus of conversion group is installed on the second mounting portion and is located in the second cavity.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910266131.7A CN109862499A (en) | 2019-04-03 | 2019-04-03 | High-performance acoustic-electric modulus of conversion group, high-power hearing aid module and ear-level hearing aid |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201910266131.7A CN109862499A (en) | 2019-04-03 | 2019-04-03 | High-performance acoustic-electric modulus of conversion group, high-power hearing aid module and ear-level hearing aid |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111189928A (en) * | 2020-01-09 | 2020-05-22 | 哈尔滨工程大学 | Sound insulation measuring device and method for measuring plate-shaped component in reverberation sound insulation pool |
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