Modified model small size receiver
Technical field
The present invention relates to a kind of receiver field, specifically, relate to a kind of modified model small size receiver.
Background technology
Receiver, also known as receiver, is a kind of electro-acoustic element audio electrical signal being converted to voice signal under voiceless sound leak condition, is widely used in the communication terminal devices such as mobile phone, landline telephone, earphone, realizes audio frequency, as the playback of voice and music etc.
In general receiver, iron unit is moved in extensive use, the operation principle of dynamic iron unit is: dynamic iron unit utilizes the general principle of electromagnetic conversion, during work, ac current signal passes through magnetic induction coil, coil-induced magnetisation, the balanced armature being opposite to thiol carries out magnetic (pole) and changes, and is then repelled each other according to the same sex (pole) by the balanced armature that magnetic (pole) is changed, principle up-down vibration in two pieces of permanent magnets that the opposite sex (pole) is attracting.The generation vibrating diaphragm of this dynamic iron unit is connected on balanced armature by a metal conduction bar, drives vibrating diaphragm up-down vibration simultaneously, and then agitates the air in earphone cavity, thus sound.
But the iron core in the dynamic iron unit of traditional receiver is hollow structure, although the acoustical quality of whole receiver can be improved, because the iron core of hollow structure takies a large amount of spaces, finally cause the cavity of whole receiver and volume to become large, cost of manufacture is high.
Summary of the invention
For solving the problems of the technologies described above, the object of the present invention is to provide and a kind ofly there is small size and reduce the modified model small size receiver of production cost.
For achieving the above object, technical scheme of the present invention is as follows: comprise screening can and be arranged at dynamic iron unit, vibrating diaphragm and the conductive bar in described screening can; Described dynamic iron unit comprises armature, magnet, coil and iron core, and described armature is " U " type, and it comprises magnetic-conductance portion and the vibration section being connected described magnetic-conductance portion, and described coil and iron core are sheathed on described vibration section successively; The two ends of described conductive bar connect free end and the vibrating diaphragm of described vibration section respectively; Described iron core is provided with opening, and described opening part connects described magnetic-conductance portion, and the material of described magnetic-conductance portion is identical with the material of described iron core.
Adopt technique scheme, the beneficial effect of technical solution of the present invention is: during work, and coil and the iron core of dynamic iron unit drive vibrating diaphragm up-down vibration, and then drive vibrating diaphragm up-down vibration by conductive bar, thus sound; Because core design has the structure of opening, iron core opening part is directly connected with magnetic-conductance portion, iron core is the same with the material of magnetic-conductance portion, therefore the opening of magnetic-conductance portion completion iron core is utilized, while guarantee receiver tonequality is constant, greatly reduce and take up room, thus reduce the volume of whole receiver, reduce production cost.
On the basis of technique scheme, the present invention also can do following improvement:
As preferred scheme, the width of described magnetic-conductance portion is greater than the width of described vibration section.
Adopt above-mentioned preferred scheme, can ensure that magnetic flux is fully enough, improve the loudness of receiver tonequality, and then optimize the auditory effect of tonequality.
As preferred scheme, described iron core is in " U " type.
Adopt above-mentioned preferred scheme, the structural design of " U " type, be convenient to connect and install.
As preferred scheme, the opening part of described iron core is provided with the connecting portion extended outside two to it.
Adopt above-mentioned preferred scheme, the setting of connecting portion, make the bonding strength of iron core and screening can larger, thus extend the useful life of receiver.
As preferred scheme, the described magnetic-conductance portion position mutually close with described coil is provided with the groove for holding described coil.
Adopt above-mentioned preferred scheme, the setting of this groove, receive coil can be entered, coil can not interfere with screening can.
As preferred scheme, described vibrating diaphragm comprises vibrating diaphragm main body and is attached at the film in described vibrating diaphragm main body, and the area of described film is greater than the area of described vibrating diaphragm main body, and screening can described in the edge conjunction of described film.
Adopt above-mentioned preferred scheme, owing to only comprising the structure of vibrating diaphragm main body and film in vibrating diaphragm, the area of vibrating diaphragm main body can correspondingly increase, thus the sound intensity sent during diaphragm oscillations is larger, the final auditory effect improving user.
As preferred scheme, described film is pasted and the described screening can that is tightly connected.
Adopt above-mentioned preferred scheme, the mode by pasting between film and screening can, can either ensure bonding strength, manufacture craft is simple simultaneously, is convenient to produce, and reduces costs, meanwhile, the sealing in chamber before and after receiver can be improved, and then improve the tonequality of receiver.
As preferred scheme, one end of described vibrating diaphragm body offers connector, and described connector connects the end of described conductive bar.
Adopt above-mentioned preferred scheme, the setting of connector, be convenient to the connection of conductive bar and vibrating diaphragm.
As preferred scheme, the other end of described vibrating diaphragm body is provided with connecting rod, and the two ends of described connecting rod connect described vibrating diaphragm body and screening can respectively.
Adopt above-mentioned preferred scheme, the setting of connecting rod, make it possible to increase the attachment force between vibrating diaphragm body and screening can, extend its useful life.
As preferred scheme, described connecting rod is elastic piece structure.
Adopt above-mentioned preferred scheme, connecting rod is set to the structure of shell fragment, can improve the frequency of vibrating diaphragm body up-down vibration, vibratory response speed is faster, highly sensitive, the final tonequality improving receiver.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in embodiment of the present invention 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 some embodiments of the present invention, 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 the cutaway view of a kind of modified model small size of the present invention receiver;
Fig. 2 is the end view of armature in a kind of modified model small size of the present invention receiver;
Fig. 3 is the expanded view of armature in a kind of modified model small size of the present invention receiver;
Fig. 4 is the connection diagram of magnetic-conductance portion and iron core in a kind of modified model small size of the present invention receiver;
Fig. 5 is the structural representation of vibrating diaphragm in a kind of modified model small size of the present invention receiver.
Wherein, 1, screening can, 2, vibrating diaphragm, 21, vibrating diaphragm main body, 22, film, 23, connector, 24, connecting rod, 3, conductive bar, 4, armature, 41, magnetic-conductance portion, 42, vibration section, 43, groove, 5, magnet, 6, coil, 7, iron core, 71, connecting portion.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
In order to reach object of the present invention, as shown in Figure 1, in some execution modes of modified model small size receiver of the present invention, it comprises screening can 1 and is arranged at dynamic iron unit, vibrating diaphragm 2 and the conductive bar 3 in screening can; Dynamic iron unit comprises armature 4, magnet 5, coil 6 and iron core 7, and armature 4 is " U " type, and it comprises magnetic-conductance portion 41 and the vibration section 42 being connected magnetic-conductance portion 41, and coil 6 and iron core 7 are sheathed on vibration section successively; The two ends of conductive bar 3 connect free end and the vibrating diaphragm 2 of vibration section 42 respectively; Iron core 7 is provided with opening, and opening part connects magnetic-conductance portion 41, and the material of magnetic-conductance portion 41 is identical with the material of iron core.
Adopt technique scheme, the beneficial effect of technical solution of the present invention is: during work, and coil 6 and the iron core 7 of dynamic iron unit drive vibrating diaphragm 2 up-down vibration, and then drive vibrating diaphragm 2 up-down vibration by conductive bar 3, thus sound; Because iron core 7 is designed with the structure of opening, iron core 7 opening part is directly connected with magnetic-conductance portion 1, iron core 7 is the same with the material of magnetic-conductance portion 1, therefore the opening of magnetic-conductance portion 1 completion iron core 7 is utilized, while guarantee receiver tonequality is constant, greatly reduce and take up room, thus reduce the volume of whole receiver, reduce production cost.
On the basis of technique scheme, the present invention also can do following improvement:
In order to optimize implementation result of the present invention further, as shown in Figure 3, in the other execution mode of modified model small size receiver of the present invention, the width of magnetic-conductance portion 41 is greater than the width of vibration section 42.
Adopt above-mentioned preferred scheme, can ensure that magnetic flux is fully enough, improve the loudness of receiver tonequality, and then optimize the auditory effect of tonequality.
In order to optimize implementation result of the present invention further, as shown in Figure 4, in the other execution mode of modified model small size receiver of the present invention, iron core 7 is in " U " type.
Adopt above-mentioned preferred scheme, the structural design of " U " type, be convenient to connect and install.
In order to optimize implementation result of the present invention further, as shown in Figure 4, in the other execution mode of modified model small size receiver of the present invention, the opening part of iron core 7 is provided with the connecting portion extended outside two to it.
Adopt above-mentioned preferred scheme, the setting of connecting portion 71, make the bonding strength of iron core and screening can larger, thus extend the useful life of receiver.
In order to optimize implementation result of the present invention further, as shown in Figure 2 and Figure 3, in the other execution mode of modified model small size receiver of the present invention, magnetic-conductance portion 41 position mutually close with coil 6 is provided with the groove 43 for holding coil 6.
Adopt above-mentioned preferred scheme, the setting of this groove 11, coil 6 can be held, coil 6 can not interfere with screening can 1.
In order to optimize implementation result of the present invention further, as shown in Figure 5, in the other execution mode of modified model small size receiver of the present invention, the film 22 that vibrating diaphragm 2 comprises vibrating diaphragm main body 21 and is attached in vibrating diaphragm main body 21, the area of film 22 is greater than the area of vibrating diaphragm main body 21, and the edge conjunction screening can 1 of film 22.
Adopt above-mentioned preferred scheme, owing to only comprising the structure of vibrating diaphragm main body 21 and film 22 in vibrating diaphragm 2, the area of vibrating diaphragm main body 21 can correspondingly increase, thus the sound intensity sent when vibrating diaphragm 2 vibrates is larger, the final auditory effect improving user.
In order to optimize implementation result of the present invention further, as shown in Figure 5, in the other execution mode of modified model small size receiver of the present invention, film 22 is pasted and the screening can 1 that is tightly connected.
Adopt above-mentioned preferred scheme, the mode by pasting between film 22 and screening can 1, can either ensure bonding strength, manufacture craft is simple simultaneously, is convenient to produce, and reduces costs, meanwhile, the sealing in chamber before and after receiver can be improved, and then improve the tonequality of receiver.
In order to optimize implementation result of the present invention further, as shown in Figure 5, in the other execution mode of modified model small size receiver of the present invention, one end of vibrating diaphragm body 21 offers connector 23, and connector 22 connects the end of conductive bar 3.
Adopt above-mentioned preferred scheme, the setting of connector 23, be convenient to the connection of conductive bar 3 and vibrating diaphragm 2.
In order to optimize implementation result of the present invention further, as shown in Figure 5, in the other execution mode of modified model small size receiver of the present invention, the other end of vibrating diaphragm body 21 is provided with connecting rod 24, and the two ends of connecting rod 24 connect vibrating diaphragm body 21 and screening can 1 respectively.
Adopt above-mentioned preferred scheme, the setting of connecting rod 24, make it possible to increase the attachment force between vibrating diaphragm body 21 and screening can 1, extend its useful life.
In order to optimize implementation result of the present invention further, as shown in Figure 5, in the other execution mode of modified model small size receiver of the present invention, connecting rod 24 is elastic piece structure.
Adopt above-mentioned preferred scheme, connecting rod 24 is set to the structure of shell fragment, can improve the frequency of vibrating diaphragm body 21 up-down vibration, vibratory response speed is faster, highly sensitive, the final tonequality improving receiver.
To the above-mentioned explanation of the disclosed embodiments, professional and technical personnel in the field are realized or uses the present invention.To be apparent for those skilled in the art to the multiple amendment of these embodiments, General Principle as defined herein can without departing from the spirit or scope of the present invention, realize in other embodiments.Therefore, the present invention 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.