CN109644313A - Receiver and hearing aid with the receiver - Google Patents
Receiver and hearing aid with the receiver Download PDFInfo
- Publication number
- CN109644313A CN109644313A CN201880002705.3A CN201880002705A CN109644313A CN 109644313 A CN109644313 A CN 109644313A CN 201880002705 A CN201880002705 A CN 201880002705A CN 109644313 A CN109644313 A CN 109644313A
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- China
- Prior art keywords
- side wall
- receiver
- extension
- permanent magnet
- fixed
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04R—LOUDSPEAKERS, MICROPHONES, GRAMOPHONE PICK-UPS OR LIKE ACOUSTIC ELECTROMECHANICAL TRANSDUCERS; DEAF-AID SETS; PUBLIC ADDRESS SYSTEMS
- H04R25/00—Deaf-aid sets, i.e. electro-acoustic or electro-mechanical hearing aids; Electric tinnitus maskers providing an auditory perception
Abstract
The present invention relates to loudspeaker technical fields, provide a kind of receiver and the hearing aid with the receiver, which includes: upper casing, lower casing, armature, the first permanent magnet, the second permanent magnet, coil and sealing film；The upper casing is mutually fastened with lower casing, and armature is fixedly installed between upper casing and lower casing；First permanent magnet is fixed on the inner surface of the upper casing；Second permanent magnet is fixed on the inner surface of the lower casing, magnetic field is formed between first permanent magnet and the second permanent magnet, one end of the armature is between first permanent magnet and the second permanent magnet；Coil is set around the armature；Sealing film is fixed on one end of the upper casing and the lower casing.Reduce iron core and vibrating diaphragm than traditional receiver based on the above structure receiver, due to without iron core, first permanent magnet and the second permanent magnet are directly fixed on upper casing and lower casing respectively, can effectively reduce the thickness of the receiver, and reduce the volume of the receiver.
Description
[technical field]
The present invention relates to loudspeaker technical field more particularly to a kind of receiver and with the hearing aid of the receiver.
[background technique]
Moving-iron receiver (also known as moving iron unit) is a kind of sounding component, and working principle is with traditional moving iron type loud-speaker
It is similar.Due to the working characteristics of moving-iron receiver, too many space and volume are not needed in voiced process, overall volume and dynamic
Coil structures are compared, very small and exquisite, convenient for being put into ear canal, therefore are widely used in high-end earphone, hearing aid etc. to body
The more demanding loudspeaker apparatus field of product.
In the implementation of the present invention, inventor find the relevant technologies have the following problems: traditional receiver due to
Components are more, cause the overall dimensions especially thickness of receiver larger, can not in depth be put into ear canal.
[summary of the invention]
In view of the above problems, the present invention provides a kind of compact-sized and small in size receiver.
In order to achieve the above object, the present invention provides a kind of receiver, comprising:
Upper casing；
Lower casing is mutually fastened with the upper casing；
Armature is fixedly installed between the upper casing and the lower casing；
First permanent magnet is fixed on the inner surface of the upper casing；
Second permanent magnet is fixed on the inner surface of the lower casing, is formed between first permanent magnet and the second permanent magnet
Magnetic field, one end of the armature is between first permanent magnet and the second permanent magnet；
Coil is set around the armature；
Film is sealed, one end of the upper casing and the lower casing is fixed on.
In some embodiments, the receiver further includes fixed frame, and the fixed frame is fixed on the upper casing and described
One end of lower casing, the sealing film are fixed on the fixed frame.
In some embodiments, the armature is in tabular, and the upper casing is fastened on the upper surface of the armature, under described
Shell is fastened on the lower surface of the armature.
In some embodiments, the armature includes base portion, the first extension, the second extension and third extension, institute
State base portion rectangular plate, one end of one end of first extension and the second extension both ends with the base portion respectively
Be fixedly connected, be fixedly connected in the middle part of one end of the third extension and the base portion, and the third extending part in
Between first extension and the second extension.
In some embodiments, the upper casing includes roof, the first side wall, second sidewall and third side wall, and described first
Side wall and second sidewall are extended by the two opposite sides edge of the roof perpendicular to the roof direction respectively, the third side
Wall is extended by the other side edge of the roof perpendicular to the roof direction, and the third side wall is fixedly connected on
Between the first side wall and the second sidewall, the first side wall and second sidewall one end end face far from the roof point
It is not fixedly connected with the upper surface of first extension and the second extension；The lower casing includes bottom wall, the 4th side wall, the 5th
Side wall and the 6th side wall, the 4th side wall and the 5th side wall are respectively by the two opposite sides of the bottom wall along perpendicular to the bottom wall
Direction extends, and the 6th side wall is extended by the other side edge of the 4th side wall perpendicular to the 4th sidewall direction
It forms, and the 6th side wall is fixedly connected between the 4th side wall and the 5th side wall, the 4th side wall and the 5th
One end end face of the side wall far from the bottom wall is fixedly connected with the lower surface of first extension and the second extension respectively.
In some embodiments, the lateral surface of the first side wall is aligned with the lateral surface of first extension, described
The lateral surface of second sidewall is aligned with the lateral surface of second extension, lateral surface and the base portion of the third side wall
Lateral surface alignment, the lateral surface of the 4th side wall are aligned with the lateral surface of first extension, outside the 5th side wall
Side is aligned with the lateral surface of second extension, and the lateral surface of the 6th side wall is aligned with the lateral surface of the base portion,
First extension is fixed between the first side wall and the 4th side wall, and second extension is fixed on described second side
Between wall and the 5th side wall, the base portion is fixed between the third side wall and the 6th side wall.
In some embodiments, the upper casing and the lower casing are fastened on armature respectively, the upper casing and the lower casing
One end form opening, the fixed frame is fixed on the opening.
In some embodiments, the width of third extension one end is less than the width of the other end of the third extension
Degree, the other end of the third extension are provided with protrusion, and the protrusion passes through the sealing film and stretches out the opening.
In some embodiments, the coil is set around one end of the third extension of the armature.
In some embodiments, the roof is provided with through-hole, and the through-hole by the receiver for being completed
Afterwards, the air-tightness of the receiver is detected by the through-hole.
In some embodiments, first permanent magnet is fixed on the inner surface of the roof, and second permanent magnet is solid
Due to the inner surface of the bottom wall；First permanent magnet and the second permanent magnet are aligned along the direction perpendicular to the roof.
In order to achieve the above object, the present invention also provides a kind of hearing aids, comprising: above-described receiver.
The beneficial effects of the present invention are: being in contrast to the prior art, the present invention provides a kind of receiver, comprising: on
Shell, lower casing, armature, the first permanent magnet, the second permanent magnet, coil and sealing film；The upper casing is mutually fastened with lower casing, and armature is solid
Dingan County is loaded between upper casing and lower casing；First permanent magnet is fixed on the inner surface of the upper casing；Second permanent magnet is fixed on described
The inner surface of lower casing, forms magnetic field between first permanent magnet and the second permanent magnet, one end of the armature is located at described the
Between one permanent magnet and the second permanent magnet；Coil is set around the armature；Sealing film is fixed on the upper casing and the lower casing
One end.Reduce iron core and vibrating diaphragm than traditional receiver based on the above structure receiver, since without iron core, first forever
Magnet and the second permanent magnet are directly fixed on upper casing and lower casing respectively, can effectively reduce the thickness of the receiver, and are reduced
The volume of the receiver.
[Detailed description of the invention]
Fig. 1 is the perspective view of receiver in the embodiment of the present invention；
Fig. 2 is the exploded view of receiver in the embodiment of the present invention；
Fig. 3 is another exploded view of receiver in the embodiment of the present invention；
Fig. 4 is the another exploded view of receiver in the embodiment of the present invention；
Fig. 5 is the cross-sectional view of receiver in the embodiment of the present invention；
Fig. 6 is the use state of hearing aid in the embodiment of the present invention with reference to figure；
Fig. 7 is the perspective view of the eardrum transducing head of hearing aid in the embodiment of the present invention.
[specific embodiment]
To facilitate the understanding of the present invention, with reference to the accompanying drawings and detailed description, the present invention is carried out in more detail
It is bright.It should be noted that be expressed " being fixed on " another element when element, it can directly on the other element or
There may be one or more elements placed in the middle therebetween.When an element is expressed " connection " another element, it be can be directly
It is connected to another element in succession or there may be one or more elements placed in the middle therebetween.Term used in this specification
"vertical", "horizontal", "left" and "right" and similar statement are for illustrative purposes only.
Unless otherwise defined, technical and scientific term all used in this specification is led with technology of the invention is belonged to
The normally understood meaning of the technical staff in domain is identical.Used term is only in the description of the invention in this specification
The purpose of description specific embodiment is not intended to the limitation present invention.Term "and/or" used in this specification includes
Any and all combinations of one or more related listed items.
As depicted in figs. 1 and 2, the embodiment of the present invention provide a kind of receiver 100 include: upper casing 10, lower casing 20, first forever
Magnet 30, the second permanent magnet 40, armature 50, coil 60, sealing film 70 and fixed frame 80, wherein the upper casing 10 and lower casing 20
Mutually fasten.First permanent magnet 30 is fixed on the inner surface of the upper casing 10, and second permanent magnet 40 is fixed on described
The inner surface of lower casing 20.The armature 50 is fixedly installed between the upper casing 10 and lower casing 20.One end position of the armature 50
Between first permanent magnet 30 and the second permanent magnet 40.The coil 60 is sheathed on the armature 50, the sealing film 70
It is fixed on the fixed frame 80, the fixed frame 80 is fixed on one end of the upper casing 10 and lower casing 20.
Specifically, as shown in Fig. 2, upper casing 10 includes roof 11, the first side wall 12, second sidewall 13 and third side wall 14.
The first side wall 12 and second sidewall 13 are prolonged by the two opposite sides edge of the roof 11 perpendicular to 11 direction of roof respectively
It stretches.The third side wall 14 is extended by the other side edge of the roof 11 perpendicular to 11 direction of roof, and
And the third side wall 14 is fixedly connected between the first side wall 12 and second sidewall 13.The roof 11 is provided with through-hole
111, the third side wall 14 is arranged jagged 141 far from the side of the roof 11.The through-hole 111 is used for by receiver
After 100 are completed, the air-tightness of receiver 100 is detected by the through-hole 111.
As shown in figure 3, lower casing 20 includes bottom wall 21, the 4th side wall 22, the 5th side wall 23 and the 6th side wall 24.Described 4th
Side wall 22 and the 5th side wall 23 are extended by the two opposite sides edge of the bottom wall 21 perpendicular to 21 direction of bottom wall respectively.Institute
The 6th side wall 24 is stated to be extended by the other side edge of the 4th side wall 22 perpendicular to 22 direction of the 4th side wall, and
6th side wall 24 is fixedly connected between the 4th side wall 22 and the 5th side wall 23.
As shown in figure 4, the first permanent magnet 30 and the second permanent magnet 40 are cuboid, first permanent magnet 30 is fixed on
The inner surface of the roof 11, second permanent magnet 40 are fixed on the inner surface of the bottom wall 21.First permanent magnet 30
With the second permanent magnet 40 along the direction alignment perpendicular to the roof 11.
Armature 50 is whole in the form of sheets or tabular, is shaped like in English capitalization E.Armature 50 includes base portion
51, the first extension 52, the second extension 53 and third extension 54.51 rectangular plate of base portion, described first prolongs
One end of extending portion 52 and one end of the second extension 53 are fixedly connected with the both ends of the base portion 51 respectively, the third extension
54 one end is fixedly connected with the middle part of the base portion 51, and the third extension 54 is located at 52 He of the first extension
Between second extension 53.One end end face of the first side wall 12 and second sidewall 13 far from the roof 11 respectively with it is described
First extension 52 is fixedly connected with the upper surface of the second extension 53.4th side wall 22 and the 5th side wall 23 are far from described
One end end face of bottom wall 21 is fixedly connected with the lower surface of first extension 52 and the second extension 53 respectively.
The armature 50 is fixedly installed between the upper casing 10 and lower casing 20.In the present embodiment, for make it is described by
The structure for talking about device 100 is more compact, and volume is smaller, and the upper casing 10 is fastened on the upper surface of the armature 50, the lower casing 20
It is fastened on the lower surface of the armature 50.It is understood that in some other embodiment, the upper casing 10 and the lower casing
20 mutually fasten, and accommodating space is formed in the upper casing 10 and the lower casing 20.The armature 50 is fixedly installed in the upper casing
10 and lower casing 20 inside, and between the upper casing 10 and the lower casing.
The width of described 54 one end of third extension is less than the width of the other end of the third extension 54, the third
The other end of extension 54 is provided with protrusion 541.
As shown in figure 5, upper casing 10 covers at the upper surface of the armature 50, lower casing 20 covers at the following table of the armature 50
Face.Specifically, the lateral surface of the first side wall 12 is aligned with the lateral surface of first extension 52.The second sidewall 13
Lateral surface be aligned with the lateral surface of second extension 53.The lateral surface of the third side wall 14 is outer with the base portion 51
Side alignment.The lateral surface of 4th side wall 22 is aligned with the lateral surface of first extension 52.5th side wall 23
Lateral surface be aligned with the lateral surface of second extension 53.The lateral surface of 6th side wall 24 is outer with the base portion 51
Side alignment.First extension 52 is fixed between the first side wall 12 and the 4th side wall 22.Second extension
53 are fixed between the second sidewall 13 and the 5th side wall 23.The base portion 51 is fixed on the third side wall 14 and the 6th side
Between wall 24.Since only there are three side walls for upper casing 10 and lower casing 20, the upper casing 10 and lower casing 20 are fastened on electricity respectively
After on pivot 50, the upper casing 10 and the one end opposite with third side wall 14 of lower casing 20 form opening 101.The third extension 54
The protrusion 541 of the other end stretch out above-mentioned opening 101.
Coil 60 is set around one end of the third extension 54 of the armature 50.
Sealing film 70 is installed on the fixed frame 80, and the shape of the fixed frame 80 is identical as the opening 101.It is described close
Sealer 70 is provided with perforation 71, the shapes and sizes of the perforation 71 and the protrusion 541 and cross-sectional shape and size
It is adapted.The fixed frame 80 is fixedly installed in the opening 101, and the protrusion 541 passes through the perforation 71, described in stretching
Opening 101.The sealing film 70 can close the opening 101, to prevent external dust from entering in the upper casing 10 and lower casing 20.
It is understood that the fixed frame 80 can omit in some other embodiment, the sealing film 70 can be direct
It is fixed at the opening 101, for closing the opening 101, to prevent external dust from entering the upper casing 10 and lower casing 20
It is interior.
The present invention provides a kind of receiver 100, comprising: upper casing 10, lower casing 20, armature 50, the first permanent magnet 30, second are forever
Magnet 40, coil 60 and sealing film 70；The upper casing 10 is mutually fastened with lower casing 20, and armature 50 is fixedly installed in upper casing 10 under
Between shell 20；First permanent magnet 30 is fixed on the inner surface of the upper casing 10；Second permanent magnet 40 is fixed on the lower casing 20
Inner surface, forms magnetic field between first permanent magnet 30 and the second permanent magnet 40, one end of the armature 50 is located at described the
Between one permanent magnet 30 and the second permanent magnet 40；Coil 60 is set around the armature 50；Sealing film 70 is fixed on the upper casing 10
With one end of the lower casing 20.Reduce iron core and vibrating diaphragm than traditional receiver based on the above structure receiver 100, due to
Without iron core, the first permanent magnet and the second permanent magnet are directly fixed on upper casing and lower casing respectively, can effectively reduce this by
The thickness of device is talked about, and reduces the volume of the receiver.
As shown in fig. 6, the receiver 100 is applied in a kind of hearing aid 200, which is a kind of light guide hearing aid
Device, including audio acquisition device 210 and eardrum transducing head 220.Audio acquisition device 210 includes the processing of microphone 211, first
Device 212 and laser emitter 213.Microphone 211 is electrically connected with first processor 212, first processor 212 and laser emitter
213 electrical connections.After the audio acquisition device 210 is placed in the ear of user.The microphone 211 is used to receive external voice, and
The sound is converted into electric signal transmission to first processor 212, first processor 212 is used to the audio signal being converted into electricity
Signal is transmitted to laser emitter 213, by laser emitter 213 according to the optical signal launch outward laser (laser be it is non-can
It is light-exposed).
As shown in fig. 7, eardrum transducing head 220 can be by way of Noninvasive and non-surgery operation by eardrum transducing
Device 220 is placed in the depths of ear canal, and neighbouring eardrum.Eardrum transducing head 220 includes laser pickoff 221, second processor
222, receiver 100, conductive bar 223 and accommodating film 224.The laser pickoff 221 is electrically connected with second processor 222, the
Two processors 222 are electrically connected with receiver 100, and one end of protrusion 541 and conductive bar 223 in the receiver 100 is fixed
The other end of connection, the conductive bar 223 is fixedly connected with accommodating film 224.224 side of the accommodating film recess, the other side are convex
Out, the receiver 100, conductive bar 223 are placed in the accommodating film 224.It is tightly attached to the side that the accommodating film 224 protrudes
The eardrum of user.Laser pickoff 221 is used to receive the laser that the laser emitter 213 issues, and is converted into telecommunications
Number, it is transmitted to second processor 222, according to the electric signal, the armature 50 controlled in receiver 100 vibrates second processor 222,
The vibration of the armature 50 makes to accommodate the vibration of film 224 through conductive bar 223, and accommodating film 224 directly drives the vibrophone of user again,
So that user receives sound.
Since eardrum transducing head 220 is placed directly on the eardrum of user, can be provided to the eardrum of user mechanical
Vibration.By directly driving eardrum, which can be than the audio frequency range of traditional air conduction hearing aid offer
It is bigger, the more frequency range close to true sound.
Further, when transmitting high-frequency sound, such as between sound frequency about 4000HZ and about 10000HZ, lead to
It is small by one to cross energy needed for energy needed for receiver 100 directly drives vibrophone about drives vibrating diaphragm than traditional receiver
A order of magnitude.Since receiver 100 needs energy to be offered to be less than traditional receiver, which does not need iron
Core enhances the magnetic field between the first permanent magnet 30 and the second permanent magnet 40.Compared with prior art, the receiver 100 is than tradition
Receiver reduce iron core and vibrating diaphragm, since without iron core, the first permanent magnet 30 and the second permanent magnet 40 are directly consolidated respectively
Due on upper casing and lower casing, the thickness of the receiver 100 can be effectively reduced, and reduces the volume of the receiver 100.Into one
Step, the vibrating diaphragm which also omits, and the vibration end of armature 50 is connect by conductive bar 223 with accommodating film 224,
And vibrophone is directly driven by accommodating film 224.Due to having lacked vibrating diaphragm, no longer needed in the shell of receiver 100
The space for accommodating vibrating diaphragm is provided, and conductive bar is also by being transferred to hull outside in shell, so that the thickness of receiver 100 is into one
Step is reduced, and further reduces the volume of receiver 100.
The working principle of the receiver 100: when not having tone currents to pass through in the coil 60, armature 50 is described
Equilibrium state is kept in the stationary magnetic field formed between first permanent magnet 30 and the second permanent magnet 40, once and pass through in coil 60
When tone currents, armature 50 can do corresponding reciprocating motion in equilbrium position with the variation of alternating current magnetic field, pass through conductive bar 223
Accommodating film 224 is driven to make a sound.Wherein, coil 60 is the carrier of electric current, between the first permanent magnet 30 and the second permanent magnet 40
Constant Direct Current magnetic field is provided.When the electric signal feed in winding 60 of variation, coil 60 generates the Lip river logical sequence of variation because of the electric current of variation
Hereby power, armature 50 move up and down under this power drive, directly drive vibrophone by conductive bar 223, make user accurately
Hear sound.
It should be noted that preferable embodiment of the invention is given in specification and its attached drawing of the invention, but
It is that the present invention can be realized by many different forms, however it is not limited to embodiment described in this specification, these realities
Mode is applied not as the additional limitation to the content of present invention, the purpose of providing these embodiments is that making in disclosure of the invention
The understanding of appearance is more thorough and comprehensive.Also, above-mentioned each technical characteristic continues to be combined with each other, and forms the various realities not being enumerated above
Mode is applied, the range of description of the invention record is accordingly to be regarded as；Further, for those of ordinary skills, Ke Yigen
It is improved or converted according to above description, and all these modifications and variations all should belong to the protection of appended claims of the present invention
Range.
Claims (12)
1. a kind of receiver characterized by comprising
Upper casing；
Lower casing is mutually fastened with the upper casing；
Armature is fixedly installed between the upper casing and the lower casing；
First permanent magnet is fixed on the inner surface of the upper casing；
Second permanent magnet is fixed on the inner surface of the lower casing, forms magnetic field between first permanent magnet and the second permanent magnet,
One end of the armature is between first permanent magnet and the second permanent magnet；
Coil is set around the armature；
Film is sealed, one end of the upper casing and the lower casing is fixed on.
2. receiver as described in claim 1, which is characterized in that
The receiver further includes fixed frame, and the fixed frame is fixed on one end of the upper casing and the lower casing, the sealing
Film is fixed on the fixed frame.
3. receiver as claimed in claim 2, which is characterized in that
The armature is in tabular, and the upper casing is fastened on the upper surface of the armature, and the lower casing is fastened on the armature
Lower surface.
4. receiver as claimed in claim 3, which is characterized in that
The armature includes base portion, the first extension, the second extension and third extension, the base portion rectangular plate,
One end of first extension and one end of the second extension are fixedly connected with the both ends of the base portion respectively, and the third is prolonged
It is fixedly connected in the middle part of one end of extending portion and the base portion, and the third extending part is in first extension and second
Between extension.
5. receiver as claimed in claim 4, which is characterized in that
The upper casing includes roof, the first side wall, second sidewall and third side wall, the first side wall and second sidewall respectively by
The two opposite sides of the roof along extending perpendicular to the roof direction, the third side wall by the roof the other side
Edge extends perpendicular to the roof direction, and the third side wall is fixedly connected on the first side wall and described
Between two side walls, one end end face of the first side wall and second sidewall far from the roof respectively with first extension and
The upper surface of second extension is fixedly connected；
The lower casing includes bottom wall, the 4th side wall, the 5th side wall and the 6th side wall, the 4th side wall and the 5th side wall respectively by
The two opposite sides of the bottom wall perpendicular to the bottom wall direction along extending, and the 6th side wall is by the another of the 4th side wall
A side edge extends perpendicular to the 4th sidewall direction, and the 6th side wall is fixedly connected on the 4th side wall
And the 5th between side wall, the 4th side wall and one end end face of the 5th side wall far from the bottom wall extend with described first respectively
Portion is fixedly connected with the lower surface of the second extension.
6. receiver as claimed in claim 5, which is characterized in that
The lateral surface of the first side wall is aligned with the lateral surface of first extension, the lateral surface of the second sidewall and institute
The lateral surface alignment of the second extension is stated, the lateral surface of the third side wall is aligned with the lateral surface of the base portion, and the described 4th
The lateral surface of side wall is aligned with the lateral surface of first extension, the lateral surface and second extension of the 5th side wall
Lateral surface alignment, the lateral surface of the 6th side wall is aligned with the lateral surface of the base portion, and first extension is fixed on
Between the first side wall and the 4th side wall, second extension is fixed between the second sidewall and the 5th side wall, institute
Base portion is stated to be fixed between the third side wall and the 6th side wall.
7. receiver as claimed in claim 6, which is characterized in that
One end of the upper casing and the lower casing forms opening, and the fixed frame is fixed on the opening.
8. receiver as described in claim 7, which is characterized in that
The width of third extension one end is less than the width of the other end of the third extension, the third extension
The other end is provided with protrusion, and the protrusion passes through the sealing film and stretches out the opening.
9. receiver as claimed in claim 4, which is characterized in that
The coil is set around one end of the third extension of the armature.
10. receiver as claimed in claim 5, which is characterized in that
The roof is provided with through-hole, and the through-hole is used for after being completed the receiver, is detected by the through-hole
The air-tightness of the receiver.
11. receiver as claimed in claim 5, which is characterized in that
First permanent magnet is fixed on the inner surface of the roof, and second permanent magnet is fixed on the interior table of the bottom wall
Face；First permanent magnet and the second permanent magnet are aligned along the direction perpendicular to the roof.
12. a kind of hearing aid, which is characterized in that including receiver such as of any of claims 1-11.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2018/118541 WO2020107400A1 (en) | 2018-11-30 | 2018-11-30 | Receiver and hearing aid with same |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN109644313A true CN109644313A (en) | 2019-04-16 |
Family
ID=66060119
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201880002705.3A Withdrawn CN109644313A (en) | 2018-11-30 | 2018-11-30 | Receiver and hearing aid with the receiver |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN109644313A (en) |
| WO (1) | WO2020107400A1 (en) |
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| WO2020107400A1 (en) | 2020-06-04 |
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Application publication date: 20190416 |