Novel bone conduction receiver
Technical field
The utility model relates to the receiver field in earphone, specifically, relates to a kind of novel bone conduction receiver.
Background technology
Bone-conduction receiver is mainly applicable to following crowd: some congenital external ear hypoplasia are as ankylotia, anotous deaf person; Some suffer from outer ear disease, middle ear diseases as with change dense property tympanitis and and be not suitable for wearing air conduction hearing aid; Be applicable to hearing loss and be less than or equal to 70dBHL, suffer from conductive hearing loss but have a normal bone conduction hearing and other conductive hearing losses patient, bone-conduction receiver makes user hear sound mainly through the principle of osteoacusis.
Traditional bone conduction receiver, its sound mainly produces by vibration of membrane of shaking, because vibration force is not enough, the both sides sound of the oscillating plate of vibrating diaphragm is very little, cause the loudness of whole receiver not enough, therefore adopt two kinds of modes below to improve: one, add counterweight on vibrating diaphragm top to improve the sound of vibrating diaphragm both sides, but vibration of membrane of shaking will be lacked of proper care, unbalanced, affect the effect of whole tonequality; Two, vibrating diaphragm is arranged the loudness improving sound in the structure tilted, but control because the angle be obliquely installed is very difficult, if when actuating force is large, can produce the phenomenon of distorsion, if actuating force is too small, the loudness of sound is still large not.
Utility model content
For solving the problems of the technologies described above, it is good that the purpose of this utility model is to provide a kind of acoustical quality, and sound intensity is large, and the simple novel bone conduction receiver of structure.
For achieving the above object, the technical solution of the utility model is as follows: novel bone conduction receiver, comprise electromagnetic shielding shell, vibrating diaphragm, electromagnetic switching device, microcircuit card, the first conductive bar and the second conductive bar, described electromagnetic switching device to be arranged on described vibrating diaphragm and to be all arranged in described electromagnetic shielding shell; It is outer and be electrically connected with described electromagnetic switching device that described microcircuit card is arranged at described electromagnetic shielding shell; The two ends of described first conductive bar are connected with electromagnetic shielding shell with described electromagnetic switching device respectively, and the two ends of described second conductive bar are connected with electromagnetic shielding shell with described vibrating diaphragm respectively; Described first conductive bar and the second conductive bar lay respectively in two cavitys up and down of described electromagnetic shielding shell.
Adopt technique scheme, the beneficial effect of utility model technical scheme is: due to the setting of the first conductive bar and the second conductive bar, during work, electromagnetic switching device provides actuating force for the up-down vibration of the first conductive bar and the second conductive bar, thus drive the up-down vibration of electromagnetic shielding shell, this receiver, overcome the mode of traditional vibrating diaphragm up-down vibration sounding, change the up-down vibration of electromagnetic shielding shell into, i.e. body vibration, its oscillation intensity is larger, overcome the shortcoming of easy distorsion during traditional receiver collision, acoustical quality is better, the loudness of sound is larger, and structure is simpler, manufacture craft difficulty is little.
On the basis of technique scheme, utility model also can do following improvement:
As preferred scheme, described electromagnetic switching device comprises armature, iron core, magnet and coil, described iron core and coil are all sheathed on described armature, described magnet is arranged at two inwalls relative with described armature on described iron core, and one end of described first conductive bar connects a free end of described armature.
Adopt above-mentioned preferred scheme, be convenient to the connection realizing the first conductive bar and armature.
As preferred scheme, the second housing that described electromagnetic shielding shell comprises the first housing and is connected with described first housing, the edge of described vibrating diaphragm is positioned at the connecting sewing of described first housing and the second housing.
Adopt above-mentioned preferred scheme, electromagnetic shielding shell is divided into the first upper and lower housing and the structure of the second housing, vibrating diaphragm is directly connected in the connecting sewing of the first housing and the second housing, when making receiver, the edge of vibrating diaphragm and the junction of housing will in the outsides of housing, overcome traditional shortcoming connecting the some glue difficulty that vibrating diaphragm brings in enclosure interior, simplify manufacture craft, reduce production cost; The area of vibrating diaphragm is larger simultaneously, thus improves the Oscillation Amplitude of vibrating diaphragm, and then optimizes the tonequality of receiver.
As preferred scheme, described vibrating diaphragm comprises vibrating diaphragm main body, connecting portion, vibrating diaphragm support and prestressing force film, and described vibrating diaphragm main body comprises obverse and reverse; Described front or reverse side contact with described prestressing force is film adhered; Described vibrating diaphragm main body also offers cavity; Described prestressing force film is tightened and is fixed on described vibrating diaphragm support; One end of described vibrating diaphragm main body is connected on described vibrating diaphragm support by described connecting portion.
Adopt above-mentioned preferred scheme, vibrating diaphragm offers cavity, low-frequency compensation can be produced with the high-frequency resonance of iron core, thus the phenomenon that dynamic iron unit sound is colder is originally improved.
As preferred scheme, the cavity cross-sectional area on described obverse and reverse is respectively 20% ~ 40% of described obverse and reverse area.
Adopt above-mentioned preferred scheme, the phenomenon that dynamic iron unit sound is colder can be improved better.
As preferred scheme, described vibrating diaphragm main body, connecting portion and vibrating diaphragm support are formed in one.
Adopt above-mentioned preferred scheme, integrated structure, not only production efficiency is high, and the bonding strength of vibrating diaphragm main body, connecting portion and vibrating diaphragm support is good, extends the useful life of whole receiver.
As preferred scheme, the thickness of described connecting portion is less than the thickness of described vibrating diaphragm main body.
Adopt above-mentioned preferred scheme, the vibration frequency of vibrating diaphragm main body can be improved, thus optimize frequency response curve, and then improve the acoustical quality of receiver.
As preferred scheme, described vibrating diaphragm main body, connecting portion and vibrating diaphragm support are stainless steel or copper material or iron-nickel alloy material.
Adopt above-mentioned preferred scheme, vibrating diaphragm main body, connecting portion and vibrating diaphragm support not easily get rusty, and are applicable to, in the high environment for use of humidity, improve the adaptive faculty of its environment.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the utility model embodiment technology, be briefly described to the accompanying drawing used required in the description of embodiment technology below, apparently, accompanying drawing in the following describes is only embodiments more of the present utility model, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is one of structural representation of a kind of novel bone conduction receiver of the utility model;
Fig. 2 is the structural representation two of a kind of novel bone conduction receiver of the utility model;
Fig. 3 is the structural representation of vibrating diaphragm in a kind of novel bone conduction receiver of the utility model.
Wherein, 1, electromagnetic shielding shell, the 11, first housing, 12, the second housing, 2, vibrating diaphragm, 21, vibrating diaphragm main body, 22, connecting portion, 23, vibrating diaphragm support, 24, prestressing force film, 25, cavity, 26, connector, 3, microcircuit card, 4, the first conductive bar, the 5, second conductive bar, 61, armature, 62, iron core, 63, magnet, 64, coil.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, be clearly and completely described the technical scheme in the utility model embodiment, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiments.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtained under creative work prerequisite, all belong to the scope of the utility model protection.
In order to reach the purpose of this utility model, as shown in Figure 1, in some execution modes of the utility model novel bone conduction receiver, it comprises electromagnetic shielding shell 1, vibrating diaphragm 2, electromagnetic switching device, microcircuit card 3, first conductive bar 4 and the second conductive bar 5, and electromagnetic switching device to be arranged on vibrating diaphragm 2 and to be all arranged in electromagnetic shielding shell 1; It is outer and be electrically connected with electromagnetic switching device that microcircuit card 3 is arranged at electromagnetic shielding shell 1; The two ends of the first conductive bar 4 are connected with electromagnetic shielding shell 1 with electromagnetic switching device respectively, and the two ends of the second conductive bar 5 are connected with electromagnetic shielding shell 1 with vibrating diaphragm 2 respectively; First conductive bar 4 and the second conductive bar 5 lay respectively in two cavitys up and down of electromagnetic shielding shell.
Adopt technique scheme, the beneficial effect of utility model technical scheme is: due to the setting of the first conductive bar 4 and the second conductive bar 5, during work, electromagnetic switching device provides actuating force for the up-down vibration of the first conductive bar 4 and the second conductive bar 5, thus drive the up-down vibration of electromagnetic shielding shell 1, this receiver, overcome the mode of traditional vibrating diaphragm 2 up-down vibration sounding, change the up-down vibration of electromagnetic shielding shell 1 into, i.e. body vibration, its oscillation intensity is larger, overcome the shortcoming of easy distorsion during traditional receiver collision, acoustical quality is better, the loudness of sound is larger, and structure is simpler, manufacture craft difficulty is little.
On the basis of technique scheme, utility model also can do following improvement:
In order to optimize implementation result of the present utility model further, as shown in Figure 1, in the other execution mode of the utility model novel bone conduction receiver, electromagnetic switching device comprises armature 61, iron core 62, magnet 63 and coil 64, iron core 62 and coil 64 are all sheathed on armature 61, magnet 63 is arranged at two inwalls relative with armature 61 on iron core 62, and one end of the first conductive bar 4 connects a free end of armature 61.
Adopt above-mentioned preferred scheme, be convenient to the connection realizing the first conductive bar 4 and armature 61.
In order to optimize implementation result of the present utility model further, as shown in Figure 2, in the other execution mode of the utility model novel bone conduction receiver, the second housing 12 that electromagnetic shielding shell 1 comprises the first housing 11 and is connected with the first housing 11, the edge of vibrating diaphragm 2 is positioned at the connecting sewing of the first housing 11 and the second housing 12.
Adopt above-mentioned preferred scheme, electromagnetic shielding shell 1 is divided into the first upper and lower housing 11 and the structure of the second housing 12, vibrating diaphragm 2 is directly connected in the connecting sewing of the first housing 11 and the second housing 12, when making receiver, the edge of vibrating diaphragm 2 and the junction of housing will in the outsides of housing, overcome traditional shortcoming connecting the some glue difficulty that vibrating diaphragm 2 brings in enclosure interior, simplify manufacture craft, reduce production cost; The area of vibrating diaphragm 2 is larger simultaneously, thus improves the Oscillation Amplitude of vibrating diaphragm 2, and then optimizes the tonequality of receiver.
In order to optimize implementation result of the present utility model further, as shown in Figure 3, in the other execution mode of the utility model novel bone conduction receiver, vibrating diaphragm comprises vibrating diaphragm main body 21, connecting portion 22, vibrating diaphragm support 23 and prestressing force film 24, and vibrating diaphragm main body 21 comprises obverse and reverse; Front or reverse side are fitted with prestressing force film 24 and are contacted; Vibrating diaphragm main body 21 also offers cavity 25; Prestressing force film 24 is tightened and is fixed on vibrating diaphragm support 23; One end of vibrating diaphragm main body 21 is connected on vibrating diaphragm support 23 by connecting portion.Wherein, vibrating diaphragm main body 21 is provided with the connector 26 for being connected with the second conductive bar 5.
Adopt above-mentioned preferred scheme, vibrating diaphragm offers cavity, low-frequency compensation can be produced with the high-frequency resonance of iron core 62, thus the phenomenon that dynamic iron unit sound is colder is originally improved.
In order to optimize implementation result of the present utility model further, as shown in Figure 3, in the other execution mode of the utility model novel bone conduction receiver, the cavity cross-sectional area on obverse and reverse is respectively 20% ~ 40% of obverse and reverse area.
Adopt above-mentioned preferred scheme, the phenomenon that dynamic iron unit sound is colder can be improved better.
In order to optimize implementation result of the present utility model further, as shown in Figure 3, in the other execution mode of the utility model novel bone conduction receiver, vibrating diaphragm main body 21, connecting portion 22 and vibrating diaphragm support 23 are formed in one.
Adopt above-mentioned preferred scheme, integrated structure, not only production efficiency is high, and the bonding strength of vibrating diaphragm main body 21, connecting portion 22 and vibrating diaphragm support 23 is good, extends the useful life of whole receiver.
In order to optimize implementation result of the present utility model further, as shown in Figure 3, in the other execution mode of the utility model novel bone conduction receiver, the thickness of connecting portion 22 is less than the thickness of vibrating diaphragm main body 21.
Adopt above-mentioned preferred scheme, the vibration frequency of vibrating diaphragm main body 21 can be improved, thus optimize frequency response curve, and then improve the acoustical quality of receiver.
In order to optimize implementation result of the present utility model further, as shown in Figure 3, in the other execution mode of the utility model novel bone conduction receiver, vibrating diaphragm main body 21, connecting portion 22 and vibrating diaphragm support 23 is stainless steel or copper material or iron-nickel alloy material.
Adopt above-mentioned preferred scheme, vibrating diaphragm main body 21, connecting portion 22 and vibrating diaphragm support 23 not easily get rusty, and are applicable to, in the high environment for use of humidity, improve the adaptive faculty of its environment.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the utility model.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein when not departing from spirit or scope of the present utility model, can realize in other embodiments.Therefore, the utility model can not be restricted to these embodiments shown in this article, but will meet the widest scope consistent with principle disclosed herein and features of novelty.