CN204442618U - Novel bone conduction receiver - Google Patents

Abstract

The utility model discloses a novel bone conduction receiver, which comprises an electromagnetic shielding shell, a vibrating membrane, an electromagnetic converting device, a microcircuit board, a first conducting rod and a second conducting rod, and the electromagnetic converting device is arranged on the vibrating membrane and are all arranged in the electromagnetic shielding case; the microcircuit board is arranged outside the electromagnetic shielding case and is electrically connected with the electromagnetic conversion device; the two ends of the first conductive rod are respectively connected to the electromagnetic conversion device The two ends of the second conducting rod are respectively connected with the diaphragm and the electromagnetic shielding case; the first conducting rod and the second conducting rod are respectively located at the upper and lower sides of the electromagnetic shielding case. In a cavity; adopting the novel bone conduction receiver provided by the utility model, under the premise of ensuring good sound quality effect of the receiver, the loudness of the sound is larger, and the structure is simple, and the production cost is low.

Description

New Bone Conduction Receiver

technical field

The utility model relates to the field of receivers in earphones, in particular to a novel bone conduction receiver.

Background technique

The bone conduction receiver is mainly suitable for the following groups of people: some deaf people with congenital hypoplasia of the outer ear, such as atresia of the external auditory canal, and no auricle; It is suitable for hearing loss less than or equal to 70dBHL, patients with conductive hearing loss but normal bone conduction hearing, and other conductive hearing loss patients. Bone conduction receivers mainly use the principle of bone conduction to make users hear to the sound.

The sound of the traditional bone conduction receiver is mainly generated by the vibration of the diaphragm. Due to the insufficient vibration force, the sound on both sides of the vibrating plate of the diaphragm is very small, resulting in insufficient loudness of the entire receiver. Therefore, the following two methods are used to improve: 1. Add a counterweight to the upper part of the diaphragm to improve the sound on both sides of the diaphragm, but the vibration of the diaphragm will be out of tune, unbalanced, and affect the overall sound quality; 2. Set the diaphragm in an inclined structure to increase the loudness of the sound , but because it is difficult to control the angle of inclination setting, if the driving force is large, the phenomenon of broken sound will occur, and if the driving force is too small, the loudness of the sound is still not loud enough.

Utility model content

In order to solve the above technical problems, the purpose of this utility model is to provide a new type of bone conduction receiver with good sound quality, high sound loudness and simple structure.

In order to achieve the above object, the technical solution of the utility model is as follows: the new bone conduction receiver includes an electromagnetic shielding shell, a diaphragm, an electromagnetic conversion device, a microcircuit board, a first conduction rod and a second conduction rod, and the electromagnetic conversion device is set on the diaphragm and are all arranged in the electromagnetic shielding shell; the microcircuit board is arranged outside the electromagnetic shielding shell and electrically connected with the electromagnetic conversion device; the two ends of the first conductive rod are respectively It is connected with the electromagnetic conversion device and the electromagnetic shielding shell, and the two ends of the second conductive rod are respectively connected with the diaphragm and the electromagnetic shielding shell; the first conductive rod and the second conductive rod are respectively located in the Inside the upper and lower cavities of the electromagnetic shielding case.

Adopting the above technical solution, the beneficial effect of the technical solution of the utility model is that: due to the setting of the first conducting rod and the second conducting rod, when working, the electromagnetic conversion device provides driving force for the up and down vibration of the first conducting rod and the second conducting rod, Thus driving the up and down vibration of the electromagnetic shielding shell, the receiver overcomes the traditional method of vibrating the diaphragm up and down to produce sound, and changes it to the up and down vibration of the electromagnetic shielding shell, that is, the body vibration. The disadvantage of easy sound breaking is better sound quality, louder sound, simpler structure, and less difficult manufacturing process.

On the basis of the above-mentioned technical scheme, the utility model can also be improved as follows:

As a preferred solution, the electromagnetic conversion device includes an armature, an iron core, a magnet and a coil, the iron core and the coil are both sleeved on the armature, and the magnet is arranged on the iron core and the On the two opposite inner walls of the armature, one end of the first conducting rod is connected to a free end of the armature.

By adopting the above preferred solution, it is convenient to realize the connection between the first conducting rod and the armature.

As a preferred solution, the electromagnetic shielding shell includes a first shell and a second shell connected to the first shell, and the edge of the diaphragm is located between the first shell and the second shell. within the connecting seam.

Using the above-mentioned preferred scheme, the electromagnetic shielding shell is divided into the upper and lower first shell and the second shell structure, and the diaphragm is directly connected in the connecting seam of the first shell and the second shell. When making a receiver, the diaphragm The connection between the edge of the shell and the shell will be on the outside of the shell, which overcomes the traditional shortcomings of dispensing difficulties caused by connecting the diaphragm inside the shell, simplifies the manufacturing process, and reduces production costs; at the same time, the diaphragm The area is larger, which increases the vibration amplitude of the diaphragm, thereby optimizing the sound quality of the receiver.

As a preferred solution, the diaphragm includes a diaphragm main body, a connecting portion, a diaphragm support and a prestressed film, and the diaphragm main body includes a front side and a back side; the front side or the back side is in contact with the prestressed film; The diaphragm main body is also provided with a cavity; the prestressed film is tightly fixed on the diaphragm support; one end of the diaphragm main body is connected to the diaphragm support through the connecting portion.

With the above preferred solution, a cavity is provided on the diaphragm, which can generate low-frequency compensation with the high-frequency resonance of the iron core, thereby improving the cold sound of the original moving iron unit.

As a preferred solution, the cross-sectional areas of the cavities on the front and back are respectively 20% to 40% of the areas of the front and back.

By adopting the above preferred solution, the phenomenon that the sound of the moving iron unit is relatively cold can be better improved.

As a preferred solution, the diaphragm main body, the connecting portion and the diaphragm support are integrally formed.

Adopting the above-mentioned preferred solution, the integrally formed structure not only has high production efficiency, but also has good connection strength of the main body of the diaphragm, the connection part and the diaphragm support, prolonging the service life of the entire receiver.

As a preferred solution, the thickness of the connecting portion is smaller than the thickness of the diaphragm main body.

By adopting the above preferred solution, the vibration frequency of the diaphragm main body can be increased, thereby optimizing the frequency response curve, and further improving the sound quality effect of the receiver.

As a preferred solution, the diaphragm main body, the connection part and the diaphragm support are made of stainless steel, copper or iron-nickel alloy.

By adopting the above preferred solution, the main body of the diaphragm, the connection part and the diaphragm bracket are not easy to rust, and are suitable for use in a high-humidity environment, improving its adaptability to the environment.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiment technology of the present invention, the accompanying drawings that need to be used in the technical description of the embodiment will be briefly introduced below. Obviously, the accompanying drawings in the following description are only the embodiment of the present invention. For some embodiments, those of ordinary skill in the art can also obtain other drawings based on these drawings without any creative effort.

Fig. 1 is one of structural representations of a novel bone conduction receiver of the utility model;

Fig. 2 is the second structural diagram of a novel bone conduction receiver of the present invention;

Fig. 3 is a structural schematic diagram of a diaphragm in a novel bone conduction receiver of the present invention.

Among them, 1. Electromagnetic shielding shell, 11. First housing, 12. Second housing, 2. Diaphragm, 21. Diaphragm main body, 22. Connecting part, 23. Diaphragm support, 24. Prestressed film, 25. cavity, 26. connecting port, 3. microcircuit board, 4. first conducting rod, 5. second conducting rod, 61. armature, 62. iron core, 63. magnet, 64. coil.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

In order to achieve the purpose of this utility model, as shown in Figure 1, in some embodiments of the utility model bone conduction receiver, it includes an electromagnetic shielding shell 1, a diaphragm 2, an electromagnetic conversion device, a microcircuit board 3, a first The conductive rod 4 and the second conductive rod 5, the electromagnetic conversion device is arranged on the diaphragm 2 and is arranged in the electromagnetic shielding case 1; the microcircuit board 3 is arranged outside the electromagnetic shielding case 1 and is electrically connected with the electromagnetic conversion device; The two ends of the conduction rod 4 are respectively connected with the electromagnetic conversion device and the electromagnetic shielding case 1, and the two ends of the second conduction rod 5 are respectively connected with the diaphragm 2 and the electromagnetic shielding case 1; the first conduction rod 4 and the second conduction rod 5 are respectively located in the upper and lower cavities of the electromagnetic shielding shell.

Adopting the above-mentioned technical scheme, the beneficial effect of the technical scheme of the utility model is: due to the setting of the first conducting rod 4 and the second conducting rod 5, when working, the electromagnetic conversion device is the up and down vibration of the first conducting rod 4 and the second conducting rod 5 The driving force is provided to drive the electromagnetic shielding shell 1 to vibrate up and down. This receiver overcomes the traditional method of vibrating the diaphragm 2 up and down to produce sound, and changes it to the up and down vibration of the electromagnetic shielding shell 1, that is, the body vibration, and its vibration intensity is greater. It overcomes the shortcoming that the traditional receiver is easy to break the sound when it collides, the sound quality is better, the sound is louder, the structure is simpler, and the manufacturing process is less difficult.

On the basis of the above-mentioned technical scheme, the utility model can also be improved as follows:

In order to further optimize the implementation effect of the present utility model, as shown in Figure 1, in some other embodiments of the bone conduction receiver of the present utility model, the electromagnetic conversion device includes an armature 61, an iron core 62, a magnet 63 and a coil 64, The iron core 62 and the coil 64 are sleeved on the armature 61 , the magnets 63 are disposed on two inner walls of the iron core 62 opposite to the armature 61 , and one end of the first conductive rod 4 is connected to a free end of the armature 61 .

By adopting the above preferred solution, it is convenient to realize the connection between the first conducting rod 4 and the armature 61 .

In order to further optimize the implementation effect of the present utility model, as shown in FIG. 2 , in some other embodiments of the bone conduction receiver of the present utility model, the electromagnetic shielding shell 1 includes a first shell 11 and a The second shell 12 is connected, and the edge of the diaphragm 2 is located in the connecting seam between the first shell 11 and the second shell 12 .

Using the above-mentioned preferred scheme, the electromagnetic shielding shell 1 is divided into the structure of the upper and lower first housing 11 and the second housing 12, and the diaphragm 2 is directly connected in the connecting seam of the first housing 11 and the second housing 12, When making the receiver, the connection between the edge of the diaphragm 2 and the casing will be on the outside of the casing, which overcomes the traditional disadvantage of difficult glue dispensing caused by connecting the diaphragm 2 inside the casing, and simplifies the manufacturing process. The production cost is reduced; at the same time, the area of the diaphragm 2 is larger, thereby increasing the vibration amplitude of the diaphragm 2, thereby optimizing the sound quality of the receiver.

In order to further optimize the implementation effect of the present utility model, as shown in FIG. 3 , in other embodiments of the bone conduction receiver of the present utility model, the diaphragm includes a diaphragm main body 21, a connecting part 22, a diaphragm support 23 and a pre-diaphragm The stress film 24, the diaphragm main body 21 includes the front and the back; the front or the back is in contact with the prestressed film 24; the diaphragm main body 21 is also provided with a cavity 25; the prestressed film 24 is tightened and fixed on the diaphragm support 23 ; One end of the diaphragm main body 21 is connected to the diaphragm support 23 through the connecting portion. Wherein, the diaphragm main body 21 is provided with a connection port 26 for connecting with the second conductive rod 5 .

With the above-mentioned preferred solution, a cavity is provided on the diaphragm, which can generate low-frequency compensation with the high-frequency resonance of the iron core 62, thereby improving the cold sound of the original moving iron unit.

In order to further optimize the implementation effect of the present utility model, as shown in Figure 3, in some other embodiments of the bone conduction receiver of the present utility model, the cross-sectional area of the cavity on the front and back surfaces is 20% of the area of the front and back surfaces respectively %~40%.

By adopting the above preferred solution, the phenomenon that the sound of the moving iron unit is relatively cold can be better improved.

In order to further optimize the implementation effect of the utility model, as shown in FIG. 3 , in some other embodiments of the bone conduction receiver of the utility model, the diaphragm main body 21 , the connecting part 22 and the diaphragm support 23 are integrally formed.

Adopting the above preferred solution, the integrally formed structure not only has high production efficiency, but also has good connection strength between the diaphragm main body 21, the connecting portion 22 and the diaphragm support 23, prolonging the service life of the entire receiver.

In order to further optimize the implementation effect of the present invention, as shown in FIG. 3 , in some other embodiments of the bone conduction receiver of the present invention, the thickness of the connecting part 22 is smaller than the thickness of the diaphragm main body 21 .

By adopting the above preferred solution, the vibration frequency of the diaphragm main body 21 can be increased, thereby optimizing the frequency response curve, and further improving the sound quality effect of the receiver.

In order to further optimize the implementation effect of the utility model, as shown in Figure 3, in some other embodiments of the utility model bone conduction receiver, the diaphragm main body 21, the connecting part 22 and the diaphragm bracket 23 are made of stainless steel or copper material or iron-nickel alloy material.

By adopting the above preferred solution, the diaphragm main body 21 , the connecting portion 22 and the diaphragm support 23 are not easy to rust, and are suitable for use in a high-humidity environment, improving their environmental adaptability.

The above description of the disclosed embodiments enables those skilled in the art to realize or use the utility model. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the present invention will not be limited to these embodiments shown herein, but will conform to the widest scope consistent with the principles and novel features disclosed herein.

Claims (8)

1. The novel bone conduction receiver is characterized in that it comprises an electromagnetic shielding shell, a diaphragm, an electromagnetic conversion device, a microcircuit board, a first conduction rod and a second conduction rod, and the electromagnetic conversion device is arranged on the diaphragm and are all arranged in the electromagnetic shielding case; the microcircuit board is arranged outside the electromagnetic shielding case and electrically connected with the electromagnetic conversion device; the two ends of the first conductive rod are respectively connected with the electromagnetic conversion device and the The electromagnetic shielding shell is connected, and the two ends of the second conductive rod are respectively connected with the diaphragm and the electromagnetic shielding shell; the first conductive rod and the second conductive rod are respectively located at the upper and lower two ends of the electromagnetic shielding shell. inside the cavity. 2. The novel bone conduction receiver according to claim 1, wherein the electromagnetic conversion device comprises an armature, an iron core, a magnet and a coil, and the iron core and the coil are both sleeved on the armature, The magnet is arranged on two inner walls of the iron core opposite to the armature, and one end of the first conducting rod is connected to a free end of the armature. 3. The novel bone conduction receiver according to claim 2, wherein the electromagnetic shielding shell comprises a first shell and a second shell connected to the first shell, the edge of the diaphragm It is located in the connecting seam between the first shell and the second shell. 4. The novel bone conduction receiver according to claim 3, wherein the diaphragm comprises a diaphragm main body, a connecting portion, a diaphragm support and a prestressed film, and the diaphragm main body comprises a front and a reverse side; The front or back side is in contact with the prestressed film; the main body of the diaphragm is also provided with a cavity; the prestressed film is tightly fixed on the support of the diaphragm; one end of the main body of the diaphragm passes through the The connecting portion is connected to the diaphragm bracket. 5. The new bone conduction receiver according to claim 4, characterized in that the cross-sectional areas of the cavities on the front and back are respectively 20% to 40% of the areas of the front and back. 6. The new bone conduction receiver according to claim 5, characterized in that, the diaphragm main body, the connecting part and the diaphragm support are integrally formed. 7. The new bone conduction receiver according to claim 6, characterized in that, the thickness of the connecting part is smaller than the thickness of the diaphragm main body. 8. The new bone conduction receiver according to claim 7, characterized in that, the diaphragm main body, the connecting part and the diaphragm support are made of stainless steel, copper or iron-nickel alloy.