CN212064357U

CN212064357U - Receiver and terminal

Info

Publication number: CN212064357U
Application number: CN202020425132.XU
Authority: CN
Inventors: 江超
Original assignee: Suzhou Miusi Tantan Technology Co ltd
Current assignee: Beijing Wofulin Technology Group Co ltd
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2020-12-01
Anticipated expiration: 2030-03-27

Abstract

The utility model provides a telephone receiver and a terminal, wherein a vibrating diaphragm is arranged in the telephone receiver, the vibrating diaphragm divides the telephone receiver into a magnetic circuit cavity and a front cavity, a first sound-emitting area is arranged on the magnetic circuit cavity, and a first damping material is arranged on the first sound-emitting area; a second sound outlet area is arranged on the front cavity, and a second damping material is arranged on the second sound outlet area; the first sound-emitting area and the second sound-emitting area are both communicated with the vibrating diaphragm. Therefore, coherent sound waves can be obtained at the first sound outlet area and the second sound outlet area, and then directivity control of sound wave radiation can be realized by adjusting damping of the first damping material and the second damping material, so that the problem of sound leakage is solved. When the terminal is a mobile phone, one sound outlet area of the receiver is arranged corresponding to the sound outlet hole at the top of the mobile phone, and the other sound outlet area of the receiver is arranged corresponding to the sound outlet hole at the back of the mobile phone, so that the problem that the outlet of the receiver occupies the screen space of the mobile phone can be solved, and the problem of conversation of the mobile phone with a full screen is solved.

Description

Receiver and terminal

Technical Field

The utility model relates to an electronic equipment technical field, concretely relates to receiver and terminal.

Background

With the popularization of mobile terminals and the rapid development of electronic technologies, communication terminal devices (such as mobile phones), mobile computers, tablet computers and other devices are increasingly important in the life of people. The vision is the most important channel for people to obtain information, when various terminals carry out man-machine interaction, the intuitive operation is an important way for improving the user experience, the larger screen occupation ratio can bring the scientific and technological sense and the fashion sense to products, and the continuous pursuit of the larger screen occupation ratio is a main trend of the development of communication terminal equipment.

A receiver is an electroacoustic device for converting an audio electric signal into an acoustic signal, and is widely used in communication terminal devices such as mobile phones, fixed phones, and hearing aids. The receiver is a moving coil receiver, and the working principle is as follows: the voice coil is arranged in a magnetic gap of a magnetic circuit of a permanent magnet, and the current flows to generate driving force, so that the vibrating diaphragm is driven to vibrate in a reciprocating manner to radiate sound waves outwards. At present, a sound hole is generally designed right above a diaphragm of a receiver.

Fig. 1 is a schematic diagram of a receiver in a mobile phone according to the prior art. As shown in fig. 1, a front sound outlet 4 of the mobile phone is disposed on a front surface of the mobile phone case 2, and both the receiver 1 and the sound outlet of the receiver (corresponding to the front sound outlet 4 of the mobile phone in fig. 1) are disposed on a front surface (i.e., a screen side) of the mobile phone, so that a part of a position of the screen 3 is occupied, and the mobile phone cannot truly realize a full-screen effect; meanwhile, when the mobile phone is used, the sound leakage is determined by the auricle of a user and the sealing degree of the mobile phone.

In order to pursue a larger screen occupation ratio, in some mobile phones, the sound outlet hole of the receiver is communicated with the front face of the screen through a sound conduit, so that the space of the screen is saved. For example, the sound outlet of the receiver is connected to the earphone outlet, or the receiver is connected to the corner of the screen through a longer pipeline. Such approaches have many limitations. First, the high frequency part suffers a large loss due to the receiver's sounding through a long sound tube. Secondly, because the sound outlet is close to the screen edge, or at the screen side, can't form sealed chamber between user's auricle and the cell-phone when the conversation, compare the scheme that fig. 1 shows, the sound leakage phenomenon is more serious, has reduced the conversation privacy, has influenced user experience, and equally, its sound is revealed the size and is depended on user's auricle and the confined degree of cell-phone.

SUMMERY OF THE UTILITY MODEL

Therefore, the to-be-solved technical problem of the utility model lies in overcoming the problem of sound leakage among the prior art to a receiver and terminal are provided.

According to a first aspect, the present invention provides a receiver, wherein a vibrating diaphragm is arranged inside the receiver, the vibrating diaphragm divides the receiver into a magnetic circuit cavity and a front cavity, a first sound emitting area is arranged on the magnetic circuit cavity, and a first damping material is arranged on the first sound emitting area; a second sound-emitting area is arranged on the front cavity, and a second damping material is arranged on the second sound-emitting area; the first sound-emitting area and the second sound-emitting area are communicated to two sides of the diaphragm.

With reference to the first aspect, in a first implementation manner of the first aspect, the damping of the second damping material is different from the damping of the first damping material, so that the receiver realizes directivity control of sound wave radiation.

With reference to the first aspect, in a second embodiment of the first aspect, the first sound emitting area is disposed on a side wall of the magnetic circuit cavity, and the second sound emitting area is disposed on a wall surface of the front cavity opposite to the diaphragm; or the first sound-emitting area is arranged on the wall surface of the magnetic circuit cavity opposite to the vibrating diaphragm, and the second sound-emitting area is arranged on the side wall of the front cavity.

With reference to the first aspect, in a third embodiment of the first aspect, at least one sound outlet hole is provided in the first sound outlet zone and/or the second sound outlet zone.

With reference to the first aspect, the first embodiment of the first aspect, the second embodiment of the first aspect, and the third embodiment of the first aspect, in a fourth embodiment of the first aspect, the receiver further includes a housing, a cover, and a frame; the vibrating diaphragm is positioned at the top of the shell and forms a magnetic circuit cavity together with the shell and the basin frame; the cover body is arranged on the shell and forms a front cavity with the vibrating diaphragm.

With reference to the fourth embodiment of the first aspect, in the fifth embodiment of the first aspect, the magnetic circuit cavity further includes a voice coil, a washer, and a magnet; the voice coil is arranged on the vibrating diaphragm, the magnet is arranged on the basin frame, and the washer is arranged on the magnet.

With reference to the fifth embodiment of the first aspect, in the sixth embodiment of the first aspect, when the frame is circumferentially nested on the housing, the first sound emitting area is disposed on a magnetic circuit assembly composed of the washer, the magnet and the frame.

With reference to the fourth implementation manner of the first aspect, in the seventh implementation manner of the first aspect, when the casing covers the basin stand, the first sound emitting area is disposed on a side wall of the casing, a third sound emitting hole is disposed on the basin stand, and the first sound emitting area is communicated to the diaphragm through the third sound emitting hole.

With reference to the fourth embodiment of the first aspect, in the eighth embodiment of the first aspect, the second sound emitting area is provided on the cover.

In order to solve the acoustic leakage problem at the terminal, according to the second aspect, the embodiment of the present invention provides a terminal, including the first aspect or the arbitrary embodiment of the first aspect the receiver, just first vocal fold with the second vocal fold all with the vocal hole at the terminal corresponds the setting.

In order to solve the problem that the outlet of the receiver occupies the screen space of the mobile phone, in combination with the second aspect, in the first embodiment of the second aspect, when the terminal is a mobile phone, one sound emitting area of the receiver is arranged corresponding to the sound emitting hole at the top of the mobile phone, and the other sound emitting area of the receiver is arranged corresponding to the sound emitting hole at the back of the mobile phone.

With reference to the second aspect of the first embodiment, in the second aspect of the second embodiment, the damping of the damping material on the sound outlet area of the receiver disposed corresponding to the sound outlet hole on the back side of the mobile phone is greater than the damping of the damping material on the sound outlet area of the receiver disposed corresponding to the sound outlet hole on the top side of the mobile phone.

With reference to the second aspect, the first embodiment of the second aspect, and the second embodiment of the second aspect, in a third embodiment of the second aspect, the receiver is located on a non-screen side of the terminal.

With reference to the second aspect, the first embodiment of the second aspect, and the second embodiment of the second aspect, in a fourth embodiment of the first aspect, the first sound emitting area and the second sound emitting area are directly communicated with the sound emitting hole of the terminal.

The utility model discloses technical scheme has following advantage:

1. the utility model provides a telephone receiver, the inside of which is provided with a vibrating diaphragm, the vibrating diaphragm divides the telephone receiver into a magnetic circuit cavity and a front cavity; a first sound-emitting area is arranged on the magnetic circuit cavity and communicated to the vibrating diaphragm, and a first damping material is arranged on the first sound-emitting area; and a second sound-emitting area is arranged on the front cavity, the second sound-emitting area is communicated to the vibrating diaphragm, and a second damping material is arranged on the second sound-emitting area. The first sound-emitting area and the second sound-emitting area are respectively communicated to two sides of the vibrating diaphragm, so that coherent sound waves can be obtained at the first sound-emitting area and the second sound-emitting area; meanwhile, the first damping material is arranged on the first sound emitting area, and the second damping material is arranged on the second sound emitting area, so that the directivity control of sound wave radiation can be realized by adjusting the damping of the first damping material and the second damping material. The sound wave that present receiver produced is with the omnidirectional mode to the total space radiation, when using, and the sound is revealed the size and is depended on the airtight degree of user's auricle and cell-phone, and the utility model provides a problem that sound leaked has been solved through directive property control to sound wave radiation to the receiver.

2. The utility model provides an in the terminal, first vocal district and second vocal district in the receiver all correspond with the vocal hole at terminal, can realize the directive property control of sound wave radiation at the vocal hole department at terminal from this, solve the problem of sound leakage.

3. The utility model provides an in the terminal, work as when the terminal is the cell-phone, a vocal area of receiver with the vocal hole at cell-phone top is corresponding, another vocal area of receiver with the vocal hole at the cell-phone back is corresponding, can install the receiver in the non-screen side of cell-phone from this, and the receiver can not occupy the cell-phone screen, can realize the directive property control of sound wave radiation in the vocal hole department at terminal simultaneously, has solved the conversation problem of comprehensive screen cell-phone, and the cost of increase or the cell-phone manufacturing degree of difficulty are not showing to this scheme simultaneously.

4. The utility model provides an in the terminal, when the terminal is the cell-phone, with the phonate hole at the cell-phone back corresponds the setting damping material on the phonate district on the receiver is greater than and corresponds the setting with the phonate hole at cell-phone top the damping material's on the phonate district of receiver damping. Therefore, the damping of the first damping material and the damping of the second damping material can be adjusted to form heart-shaped directivity or super-heart-shaped directivity, and the heart-shaped directivity or the super-heart-shaped directivity points to the connecting line of the two sound emitting areas and faces to the direction of the auricle. I.e., directionally canceling rearward sound and concentrating energy into the pinna. Meanwhile, the unidirectional sound source has a near speaking effect, so that the sound energy is attenuated more quickly, and other people at a distance can be prevented from hearing the sound of the telephone receiver, and the purpose of being more private is achieved.

5. The embodiment of the utility model provides an in the terminal, first vocal district and second vocal district in the receiver directly communicate with the vocal hole at terminal, and the high frequency part that arouses when can avoiding adopting the acoustic duct intercommunication has the problem of great loss.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the embodiments or the technical solutions in the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.

Fig. 1 is a schematic diagram of a receiver in a mobile phone according to the prior art;

FIG. 2 is a schematic diagram of an embodiment of a receiver;

fig. 3 is a schematic diagram of a specific structure of the receiver;

fig. 4 is a schematic diagram of another specific structure of the receiver;

fig. 5 is a schematic view of an installation position of the receiver shown in fig. 1 in the terminal;

fig. 6 is a schematic diagram of the acoustic directivity of the receiver;

wherein: 1. a telephone receiver; 2. a handset housing; 3. a screen; 4. a sound outlet on the front side of the mobile phone; 5. a sound outlet hole at the top of the mobile phone; 6. a sound outlet hole is arranged on the back of the mobile phone;

11. a magnetic circuit cavity; 12. a front cavity; 13. a first damping material; 14. a second damping material; 15. vibrating diaphragm; 16. a cover body; 17. a housing; 18. a basin stand; 19. a first sound emitting area; 20. a second sound emitting area; 21. a third sound outlet;

111. a voice coil; 112. washer; 113. a magnet.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

Example 1

In a specific embodiment of the receiver shown in fig. 2, a diaphragm 15 is disposed inside the receiver, the diaphragm 15 divides the receiver into a magnetic circuit cavity 11 and a front cavity 12, a first sound emitting area (not labeled in fig. 2) is disposed on the magnetic circuit cavity 11, and a first damping material 13 is disposed on the first sound emitting area; a second sound emitting area (not marked in fig. 2) is arranged on the front cavity 12, and a second damping material 14 is arranged on the second sound emitting area; and the first sound emitting area and the second sound emitting area are communicated to both sides of the diaphragm 15.

It should be noted that the first sound-emitting area and the second sound-emitting area are only names representing different sound-emitting areas, and do not represent that the features such as the size and the shape of the two sound-emitting areas are different, and the features such as the size and the shape of the two sound-emitting areas may be the same or different.

The first sound emitting area and/or the second sound emitting area are provided with at least one sound emitting hole, for example, one sound emitting hole may be provided, or a mesh hole formed by 2 or more small holes may also be provided. Similarly, the first damping material 13 and the second damping material 14 only represent that two damping materials are respectively present in the first sound emitting area and the second sound emitting area, and do not represent that other properties such as the materials of the two damping materials are different. For example, the damping material may be foam, mesh, non-woven fabric, or other material with acoustic impedance, and combinations thereof. When the first damping material 13 is made of foam, the second damping material 14 may be made of mesh, non-woven fabric, or foam.

As a possible embodiment, the damping of the second damping material 14 is different from the damping of the first damping material 13. I.e. the damping of the second damping material 14 is larger than the damping of the first damping material 13, or the damping of the first damping material 13 is larger than the damping of the second damping material 14.

As a possible implementation manner, the first sound emitting region is disposed on the side wall of the magnetic circuit cavity 11 and the second sound emitting region is disposed on the wall surface of the front cavity 12 opposite to the diaphragm 15; or the first sound-emitting area is arranged on the wall surface of the magnetic circuit cavity 11 opposite to the diaphragm 15, and the second sound-emitting area is arranged on the side wall of the front cavity 12. For example, as shown in fig. 2, the receiver is of a long rectangular design, and in such a rectangular structure, the first sound emitting area is disposed parallel to the diaphragm 15, that is, on the wall surface of the magnetic circuit cavity 11 opposite to the diaphragm 15; the second sound emitting area is disposed perpendicular to the diaphragm 15, that is, the second sound emitting area is disposed on the sidewall of the front cavity 12. Of course, the first sound emitting region may be disposed at a position perpendicular to the diaphragm 15, and the second sound emitting region may be disposed at a position parallel to the diaphragm 15. It should be noted that, the above only specifies the arrangement positions of the first sound emitting area and the second sound emitting area, and the shapes of the first sound emitting area and the second sound emitting area are not limited, and the first sound emitting area and the second sound emitting area may be circular holes, or square holes; the holes can be straight holes or inclined holes.

In the receiver provided by the embodiment of the present invention, a vibrating diaphragm 15 is disposed inside the receiver, and the vibrating diaphragm 15 divides the receiver into a magnetic circuit cavity 11 and a front cavity 12; a first sound emitting area is arranged on the magnetic circuit cavity 11, the first sound emitting area is communicated to the vibrating diaphragm 15, and a damping material is arranged on the first sound emitting area; the front cavity 12 is provided with a second sound emitting area, the second sound emitting area is communicated to the vibrating diaphragm 15, the second sound emitting area is provided with a damping material, and the first sound emitting area and the second sound emitting area are respectively communicated to two sides of the vibrating diaphragm 15, so that coherent sound waves can be obtained at the first sound emitting area and the second sound emitting area. Meanwhile, the first damping material 13 is arranged on the first sound emitting area, and the second damping material 14 is arranged on the second sound emitting area, so that the directivity control of sound wave radiation can be realized by adjusting the damping of the first damping material 13 and the second damping material 14.

Example 2

Fig. 3 is a schematic diagram of a specific structure of the receiver, and as shown in fig. 3, the receiver includes a housing 17, a cover 16, a frame 18, a voice coil 111, a washer 112, and a magnet 113.

As shown in fig. 3, the frame 18 is circumferentially nested in the housing 17, and the diaphragm 15 is located on the top of the housing 17 and forms a magnetic circuit cavity with the housing 17 and the frame 18; the magnetic circuit cavity further comprises a voice coil 111, a washer 112 and a magnet 113; the voice coil 111 is arranged on the diaphragm 15, the magnet 113 is arranged on the frame 18, the washer 112 is arranged on the magnet 113, the first sound emitting area 19 is arranged on a magnetic circuit component composed of the washer 112, the magnet 113 and the frame 18 (namely, the first sound emitting area 19 is arranged on the frame 18, and the first sound emitting area 19 penetrates through the frame 18, the magnet 113 and the washer 112), and a first damping material 13 is further arranged on the first sound emitting area 19.

The cover 16 is disposed on the housing 17 and forms a front cavity with the diaphragm 15, the second sound emitting area 20 is disposed on a sidewall of the cover 16, and a second damping material 14 is further disposed on the second sound emitting area (not labeled in fig. 3).

As a possible embodiment, the damping of the second damping material 14 is different from the damping of the first damping material 13.

In fig. 3, a direction in which the receiver diaphragm 15 faces the cover 16 is referred to as a direction a, and a direction in which the receiver diaphragm 15 faces the magnetic circuit is referred to as a direction B. The sound of direction a is communicated to the second sound-emitting area and the sound of direction B is communicated to the first sound-emitting area 19.

The utility model discloses in embodiment 2, magnetic circuit assembly can also be for two magnet, three magnet, different magnetic circuit such as five magnet for the single magnet design of figure to do not influence the final effect of this embodiment.

Example 3

Fig. 4 is a schematic diagram of another specific structure of the receiver, and as shown in fig. 4, the receiver includes a housing 17, a cover 16, a frame 18, a voice coil 111, a washer 112 and a magnet 113.

As shown in fig. 6, the casing 17 covers the frame 18, and the diaphragm 15 is located on the top of the casing 17 and forms a magnetic circuit cavity together with the casing 17 and the frame 18; the magnetic circuit cavity comprises a voice coil 111, a washer 112 and a magnet 113; the voice coil 111 is arranged on the diaphragm 15, the magnet 113 is arranged on the basin stand 18, and the washer 112 is arranged on the magnet 113. The first sound emitting area (not shown in fig. 4) is disposed on the sidewall of the housing 17, a third sound emitting hole 21 is disposed on the frame 18, the first sound emitting area is communicated to the diaphragm 15 through the third sound emitting hole 21, sound waves generated by the diaphragm 15 are transmitted to the first sound emitting area 19 through the third sound emitting hole 21, and a first damping material 13 is further disposed on the first sound emitting area.

The cover 16 is disposed on the housing 17, and forms a front cavity with the diaphragm 15, the second sound emitting area 20 is disposed on the cover 16 and is opposite to the diaphragm 15, and a second damping material 14 is further disposed on the second sound emitting area 20.

In fig. 6, a direction of the receiver diaphragm 15 toward the cover 16 is referred to as a direction a, a direction of the receiver diaphragm 15 toward the magnetic circuit is referred to as a direction B, sound in the direction a is communicated to the second sound-emitting area 20, and sound in the direction B is communicated to the first sound-emitting area.

The utility model discloses in embodiment 3, magnetic circuit assembly can also be for two magnet, three magnet, different magnetic circuit such as five magnet for the single magnet design of figure to do not influence the final effect of this embodiment.

Example 4

The embodiment of the utility model provides an installation receiver's terminal, first play sound zone on the receiver with the second play sound zone all corresponds the setting with the phonate hole at terminal, can realize sound wave radiation's directive property control in the terminal from this. It should be noted that the directivity control may be toward one end of the user when the terminal is not located at the same position as the user, for example, when the terminal is located at the first position and the user is located at the second position, the directivity control may be understood as pointing from the first position to the second position; the directivity control may also be understood as a direction towards the user's ear when the terminal is co-located with the user, for example in the direction of the user's ear when the terminal is a mobile phone.

Fig. 4 is a schematic view of the installation position of the receiver shown in fig. 2 in the mobile phone. In fig. 4, a first sound outlet area of the receiver is arranged corresponding to the top sound outlet 5 of the mobile phone, and a second sound outlet area of the receiver is arranged corresponding to the back sound outlet 6 of the mobile phone; of course, the second sound emitting area of the receiver may be arranged corresponding to the top sound emitting hole 5 of the mobile phone, and the first sound emitting area of the receiver may be arranged corresponding to the back sound emitting hole 6 of the mobile phone. Therefore, as shown in fig. 3, the telephone receiver can be installed at the position close to the top and the back of the mobile phone, so that any area of the front screen area of the mobile phone is not occupied, and the mobile phone can achieve a full screen. Meanwhile, the sound outlet area of the receiver can be directly communicated with the sound outlet holes (namely the top sound outlet hole 5 and the back sound outlet hole of the mobile phone) on the mobile phone shell, no additional sound guide pipe occupies the internal space of the mobile phone, and the problem of high-frequency loss caused by the sound guide pipe is solved.

In order to better realize the directivity control of sound wave radiation, the damping of the damping material on the sound outlet area of the receiver, which is arranged corresponding to the sound outlet hole on the back of the mobile phone, needs to be larger than the damping of the damping material on the sound outlet area of the receiver, which is arranged corresponding to the sound outlet hole on the top of the mobile phone. For more detailed description, the receiver of fig. 3 and 4 is taken as an example for detailed description.

When the second sound-emitting area of the receiver shown in fig. 3 is disposed corresponding to the top sound-emitting hole 5 of the mobile phone and the first sound-emitting area 19 is disposed corresponding to the back sound-emitting hole 6 of the mobile phone, the damping of the first damping material 13 needs to be greater than the damping of the second damping material 14.

When the first sound-emitting area 19 of the receiver shown in fig. 4 is disposed corresponding to the top sound-emitting hole 5 of the mobile phone and the second sound-emitting area is disposed corresponding to the back sound-emitting hole 6 of the mobile phone, the damping of the second damping material 14 needs to be greater than the damping of the first damping material 13.

Therefore, the amplitude of the sound wave radiated from the sound outlet on the back of the mobile phone can be smaller than that of the sound wave radiated from the sound outlet on the top of the mobile phone, and heart-shaped directivity or super-heart-shaped directivity can be formed by adjusting the damping of the first damping material 13 and the damping of the second damping material 14 according to the acoustic impedance conditions of the front cavity and the rear cavity, as shown in fig. 6, and the heart-shaped directivity or the super-heart-shaped directivity points to the connecting line of the two sound outlet areas and faces to the direction of the auricle. I.e., directionally canceling rearward sound and concentrating energy into the pinna. Meanwhile, the unidirectional sound source has a near speaking effect, so that the sound energy is attenuated more quickly, and other people at a distance can be prevented from hearing the sound of the telephone receiver, and the purpose of being more private is achieved. Meanwhile, the scheme does not increase the cost or the difficulty of manufacturing the mobile phone obviously.

It should be understood that the above examples are only for clarity of illustration and are not intended to limit the embodiments. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And obvious variations or modifications therefrom are within the scope of the invention.

Claims

1. The utility model provides a receiver, the inside vibrating diaphragm that is equipped with of receiver, the vibrating diaphragm will the receiver divide into magnetic circuit cavity and preceding cavity, its characterized in that:

a first sound-emitting area is arranged on the magnetic circuit cavity, and a first damping material is arranged on the first sound-emitting area; a second sound-emitting area is arranged on the front cavity, and a second damping material is arranged on the second sound-emitting area; the first sound-emitting area and the second sound-emitting area are communicated to two sides of the diaphragm.

2. A receiver according to claim 1, characterised in that the damping of the second damping material is different from the damping of the first damping material, so that the receiver achieves directivity control of the sound radiation.

3. The receiver of claim 1, wherein the first sound emitting area is disposed on a side wall of the magnetic circuit cavity and the second sound emitting area is disposed on a wall surface of the front cavity opposite to the diaphragm; or the first sound-emitting area is arranged on the wall surface of the magnetic circuit cavity opposite to the vibrating diaphragm, and the second sound-emitting area is arranged on the side wall of the front cavity.

4. A receiver according to claim 1, characterised in that at least one sound outlet opening is provided in the first sound outlet zone and/or the second sound outlet zone.

5. A receiver according to any of claims 1-4, characterized in that the receiver further comprises a housing, a cover and a frame;

the vibrating diaphragm is positioned at the top of the shell and forms a magnetic circuit cavity together with the shell and the basin frame; the cover body is arranged on the shell and forms a front cavity with the vibrating diaphragm.

6. The receiver of claim 5, wherein the magnetic circuit cavity further comprises a voice coil, a washer and a magnet; the voice coil is arranged on the vibrating diaphragm, the magnet is arranged on the basin frame, and the washer is arranged on the magnet.

7. The receiver of claim 6, wherein the first sound emitting area is disposed on a magnetic circuit assembly comprising the washer, the magnet and the frame when the frame is circumferentially nested on the housing.

8. A receiver according to claim 5, wherein the first sound-emitting area is provided on a side wall of the housing when the housing is overlaid on the frame, and a third sound-emitting hole is provided in the frame, through which the first sound-emitting area communicates to the diaphragm.

9. A receiver according to claim 5, characterised in that the second sound exit area is provided on the cover.

10. A terminal, comprising the receiver of any one of claims 1 to 9, wherein the first sound-emitting area and the second sound-emitting area are disposed corresponding to the sound-emitting hole of the terminal.

11. The terminal of claim 10, wherein when the terminal is a mobile phone, one sound emitting area of the receiver is disposed corresponding to the sound emitting hole on the top of the mobile phone, and the other sound emitting area of the receiver is disposed corresponding to the sound emitting hole on the back of the mobile phone.

12. The terminal of claim 11, wherein the damping of the damping material on the sound emitting area of the receiver corresponding to the sound outlet on the back of the handset is greater than the damping of the damping material on the sound emitting area of the receiver corresponding to the sound outlet on the top of the handset.

13. The terminal of any of claims 10-12, wherein the receiver is located on a non-screen side of the terminal.

14. A terminal as claimed in any of claims 10 to 12, wherein the first and second sound-emitting areas are in direct communication with a sound-emitting aperture of the terminal.