CN218162522U - Sealing structure for front cavity of mobile phone loudspeaker - Google Patents

Abstract

The application discloses cell-phone speaker antechamber seal structure, including the backshell, with the backshell cooperation forms accommodating space the preceding shell, accept in speaker monomer in the accommodating space and with the bottom side sealing connection's of speaker unit drain pan, the backshell with speaker monomer one side forms sealed back chamber, the opposite side of speaker unit with be equipped with the antechamber between the preceding shell, the antechamber passes through the seal and seals, wherein, be equipped with out the sound passageway on the antechamber, the one end and the play sound hole intercommunication of going out the sound passageway. The speaker monomer receives audio signal and begins work, produces the air current through the sound channel that designs and is converted into acoustic signal by the signal of telecommunication, and sound flows to a sound hole through sound channel to through front chamber and back chamber cooperation, its crest or trough intercrossing that can prevent the high frequency sound of sound wave and low frequency sound offset, thereby can propelling movement high tone quality, realization modularization assembly is in mobile terminal.

Description

Sealing structure for front cavity of mobile phone loudspeaker

Technical Field

The utility model relates to a speaker field especially relates to a seal structure of mobile phone loudspeaker front cavity.

Background

The loudspeaker structure is used as an energy conversion device, belongs to an important acoustic component of electronic equipment, and is used for completing conversion between an electric signal and a sound signal. However, with the continuous development of the mobile phone industry, the types of speakers are more and more, and although the operation modes of the speakers are different, mechanical vibration is generated to push surrounding air, so that the air medium fluctuates to realize the conversion of electricity, force and sound. At present, the requirements on a mobile phone loudspeaker are higher and higher, the mobile phone loudspeaker is ultrathin, light in weight and small in occupied space, however, because the front cavity or the rear cavity of the existing loudspeaker is not sealed, the front cavity is deflated, the acoustic performance is poor, and the conversion rate of converting an electric signal into an acoustic signal is low. Therefore, designing a technology that can improve the acoustic performance more smoothly with high energy conversion efficiency and less consumption loss becomes a technical problem to be solved by those skilled in the art.

SUMMERY OF THE UTILITY MODEL

To the shortcoming or not enough of above-mentioned prior art, the application provides a cell-phone speaker front chamber seal structure to solve the lower and high distortion of the conversion rate that the signal of telecommunication changes into acoustic signal, be unfavorable for being applied to terminal equipment's such as cell-phone technical problem.

In order to solve the technical problem, the application is realized by the following technical scheme:

the utility model provides a cell-phone speaker front chamber seal structure, including the backshell, with the backshell cooperation forms accommodating space's preceding shell, accept in speaker monomer in the accommodating space and with the bottom shell of the bottom side sealing connection of speaker monomer, the backshell with sealed rear chamber is formed to one side of speaker monomer, the opposite side of speaker monomer with be equipped with the front chamber between the preceding shell, the front chamber passes through the seal and seals, wherein, be equipped with out the sound passageway on the front chamber, the one end and the play sound hole intercommunication of play sound passageway.

Further, the loudspeaker unit comprises a diaphragm for vibrating and sounding, and the diaphragm is connected with the front cavity.

Furthermore, the rear shell is fixedly connected with one side of the loudspeaker monomer through double-sided colloid.

Further, still include, the dust screen sets up go out between sound hole and the backshell.

Further, still include, battery apron lid is established the side of rear shell.

Further, the sealing member is disposed between the front cavity and the diaphragm.

Furthermore, the sealing element is made of a PET material with sealing performance.

Furthermore, the dust screen is one of non-woven fabrics, dust screen cloth, nylon woven mesh and metal mesh.

Compared with the prior art, the method has the following technical effects:

(1) In this application, the speaker monomer receives audio signal and begins work, produce the air current through the sound channel that designs and convert into acoustic signal by the signal of telecommunication, through the isolated to the seal to the ante-chamber, it is bad to produce acoustic performance in order to prevent preceding back chamber cluster gas, sound flows to a sound hole through the sound channel, and through ante-chamber and back chamber cooperation, it can prevent that the high-frequency sound of sound wave and the crest or the trough intercrossing of low-frequency sound offset, thereby can propelling movement high tone quality, realize the modularization assembly in mobile terminal.

(2) In this application, through setting up the dust screen, can completely cut off the inflow of outside foreign matter to prevent effectively that outside foreign matter from entering into vestibule and inside through going out the sound hole, the problem that the acoustic performance is bad that causes the risk that the market visitor complains.

(3) The structure design that uses the PTE material to replace conventional shell material in this application does benefit to save material cost and reduces complete machine thickness to and it is more smooth and easy to make the passageway air current output, thereby saves production line assembly process when improving acoustic performance.

Drawings

Other features, objects and advantages of the present application will become more apparent upon reading of the following detailed description of non-limiting embodiments thereof, made with reference to the accompanying drawings in which:

FIG. 1: an explosion diagram of a sealing structure of a front cavity of a mobile phone loudspeaker in one embodiment of the application;

FIG. 2: according to the top view of the sealing structure of the front cavity of the mobile phone loudspeaker in the embodiment of the application;

FIG. 3: a bottom view of the connection structure and speaker structure of an embodiment of the present application;

FIG. 4 is a schematic view of: the loudspeaker unit and the rear shell of the embodiment of the application are connected in a schematic structure.

In the figure: 1-battery cover plate, 10-sealing gasket, 11-bottom shell, 12-data connecting hole, 13-component, 2-front shell, 3-speaker monomer, 31-vibrating diaphragm, 4-back shell, 41-fixing plate, 5-PTE sealing body, 6-front cavity, 7-dust screen, 8-sound outlet hole and 9-microphone hole.

Detailed Description

The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application, and it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present application.

If there is a description in an embodiment of the present invention referring to "first", "second", etc., the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions in the embodiments may be combined with each other, but it must be based on the realization of those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

As shown in fig. 1 and fig. 2, in this embodiment, a sealing structure for a front cavity of a speaker of a mobile phone includes a rear shell 4, a front shell 2 cooperating with the rear shell 4 to form an accommodating space, a speaker unit 3 accommodated in the accommodating space, and a bottom shell 11 hermetically connected to a bottom side of the speaker unit 3, where the rear shell 4 and one side of the speaker unit 3 form a sealed rear cavity, a front cavity 6 is disposed between the other side of the speaker unit 3 and the front shell 2, the front cavity 6 is sealed by a sealing body, where a sound outlet channel is disposed on the front cavity 6, and one end of the sound outlet channel is communicated with a sound outlet hole 8. In this embodiment, speaker monomer 3 receives audio signal and begins work, produce the air current through the sound channel of design and convert into acoustic signal by the signal of telecommunication, through to the isolation of seal to preceding chamber 6, it is bad to prevent that preceding rear chamber from joining in marriage gas production acoustic performance, sound is through going out sound channel to play sound hole 8 outflow, and through preceding chamber 6 and rear chamber cooperation, it can prevent that the high-frequency sound of sound wave and the crest or the trough intercrossing of low-frequency sound offset, thereby can push away high tone quality, realize the modularization assembly in mobile terminal.

Preferably, the rear housing 4 and one side of the speaker unit 3 are fixedly connected through a double-faced adhesive, in this example, the speaker unit 3 includes a diaphragm 31 for vibrating and sounding, and the diaphragm 31 is connected to the front cavity 6. Speaker monomer 6 forms sealed back cavity volume with the combination of backshell 4, and speaker monomer 3 is in the same place through being two-sided colloid fixed connection with backshell 4 to the front chamber is isolated through the seal, and the chamber is breathed somebody's turn to the front. Receive audio signal when speaker monomer 3 and begin work, vibrating diaphragm 31 promotes the air and produces the air current through the sound channel of design and is converted into the acoustic signal by the signal of telecommunication, because antechamber 6 seals and prevents that the antechamber is lost heart and produce acoustic performance bad, sound flows to a sound hole 8 through a sound channel, in this application, through the use to the 6 sealed modes of antechamber, both can make the output of sound channel air current more smoothly improve the acoustic performance the time save production line assembly process, save material cost and reduce complete machine thickness again further.

Further, as shown in fig. 2, the present embodiment further includes a battery cover plate 1, where the battery cover plate 1 is disposed on a side surface of the rear case 4.

Preferably, in this embodiment, the sealing member is disposed between the front cavity 6 and the diaphragm 31. When the loudspeaker single body 3 receives an audio signal and starts to vibrate, high-frequency sound is pushed out through the vibrating diaphragm 31, low-frequency sound is pushed out through the rear cavity without the vibrating diaphragm, and the front cavity 6 is matched with the rear cavity, so that the high-frequency sound of sound waves and the wave crest or the wave trough of the low-frequency sound can be prevented from being mutually crossed and offset, and high-sound quality can be pushed out.

The sealing element is made of PET materials to form a PTE sealing body 5. Use the structural design of PTE material to replace conventional shell material in this application to do benefit to save material cost and reduce complete machine thickness to and it is more smooth and easy to make passageway air current output, thereby saves production line assembly process when improving acoustic performance.

In this example, a dust screen 7 is further included, and the dust screen 7 is arranged between the sound outlet hole 8 and the rear case 4. The dust screen 7 can isolate the inflow of external foreign matters, so that the external foreign matters can be prevented from entering the front cavity 6 of the loudspeaker through the sound outlet hole 8, and the risk of market complaints caused by poor acoustic performance caused by the internal foreign matters is avoided.

Further, the dust screen 7 is one of a non-woven fabric, a dust screen cloth, a nylon woven mesh and a metal mesh.

Preferably, as shown in fig. 3, in this example, the dust-proof screen 7 is provided at a position communicating with the outside between the sound outlet hole 8 and the rear case 4. Generally, the dust screen 7 covers the sound outlet hole 8; the dust screen 7 is of a non-metal net structure and is integrally arranged with the bottom shell 11 through injection molding. The dust screen 7 with the nonmetal net structure can effectively adjust the acoustic performance of the sound cavity assembly, prevent external foreign matters from entering the sound cavity assembly, and improve the waterproof and dustproof performance of the sound cavity assembly. The dust screen 7 and the bottom shell 11 are integrally arranged, so that the firm combination degree of the dust screen 7 and the shell can be improved, the dust screen 7 is prevented from falling off, the reliability of the sound cavity assembly is improved, other parts do not need to be pasted at the position of the sound hole 8 in the assembly production process of the loudspeaker single body 3, and the production efficiency is improved.

As shown in fig. 4, in this embodiment, a microphone hole 9 and a data connection hole 12 are further formed in the bottom case 11, the sealing pad 10 covers the microphone hole 9, a fixing plate 41 is disposed in the accommodating cavity, a component 13 is fixed on the fixing plate, and the component 13 is electrically connected to the circuit board.

Compared with the prior art, the method has the following technical effects:

in this application, the speaker monomer receives audio signal and begins work, produce the air current through the sound channel that designs and convert into acoustic signal by the signal of telecommunication, through the isolated to the seal to the ante-chamber, it is bad to produce acoustic performance in order to prevent preceding back chamber cluster gas, sound flows to a sound hole through the sound channel, and through ante-chamber and back chamber cooperation, it can prevent that the high-frequency sound of sound wave and the crest or the trough intercrossing of low-frequency sound offset, thereby can propelling movement high tone quality, realize the modularization assembly in mobile terminal.

In this application, through setting up the dust screen, can completely cut off the inflow of outside foreign matter to prevent effectively that outside foreign matter from entering into front chamber and inside through going out the sound hole, the risk that the bad problem of acoustic performance caused arouses the market visitor and tells.

The structure design that uses the PTE material to replace conventional shell material in this application does benefit to save material cost and reduces complete machine thickness to and it is more smooth and easy to make the passageway air current output, thereby saves production line assembly process when improving acoustic performance.

The above embodiments are merely to illustrate the technical solutions of the present application and are not limitative, and the present application is described in detail with reference to preferred embodiments. It will be understood by those skilled in the art that various modifications and equivalent arrangements may be made in the present invention without departing from the spirit and scope of the present invention and shall be covered by the appended claims.

Claims (8)

1. The utility model provides a cell-phone speaker front chamber seal structure, its characterized in that, including the backshell, with the backshell cooperation forms accommodating space's preceding shell, accept in speaker monomer in the accommodating space and with the bottom shell of the bottom side sealing connection of speaker monomer, the backshell with sealed rear chamber is formed to one side of speaker monomer, the opposite side of speaker monomer with be equipped with the front chamber between the preceding shell, the front chamber passes through the seal and seals, wherein, be equipped with out the sound passageway on the front chamber, the one end and the play sound hole intercommunication of going out the sound passageway.

2. The sealing structure of the front cavity of the mobile phone loudspeaker according to claim 1, wherein the loudspeaker unit comprises a diaphragm for vibrating and sounding, and the diaphragm is connected with the front cavity.

3. The sealing structure of the front cavity of the speaker of the mobile phone according to claim 1, wherein the rear case is fixedly connected with one side of the speaker monomer through a double-sided adhesive.

4. The sealing structure of the front cavity of the speaker of the mobile phone according to claim 1, further comprising a dust screen, wherein the dust screen is disposed between the sound outlet hole and the rear housing.

5. The sealing structure for the front cavity of the speaker of the mobile phone according to claim 1, further comprising a battery cover plate covering the side surface of the rear case.

6. The handset speaker front cavity seal structure of claim 2, wherein a seal is disposed between the front cavity and the diaphragm.

7. The sealing structure for the front cavity of the speaker of the mobile phone as claimed in claim 6, wherein the sealing member is made of a PET material with sealing property.

8. The sealing structure of the front cavity of the speaker of the mobile phone according to claim 4, wherein the dust-proof net is one of a non-woven fabric, a dust-proof net cloth, a nylon woven net and a metal net.

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