CN219761075U - Mobile phone sounding structure and mobile device - Google Patents

Abstract

A mobile phone sounding structure and mobile equipment, the mobile phone sounding structure includes equipment shell, fixed plate, loudspeaker; the fixing plate is fixed in the equipment shell and is enclosed with the equipment shell to form an accommodating space; the loudspeaker is positioned in the accommodating space; the fixed plate is provided with a sound outlet channel communicated with the accommodating space and the outside of the equipment shell at a position close to the bottom of the equipment shell, and the sound outlet channel comprises a sound producing section, a receiver sound producing section and a loudspeaker sound producing section which are communicated with each other; the sound producing section is located on the fixing plate and corresponds to the loudspeaker, the end of the sound producing section is communicated with the accommodating space, one ends of the earphone sound producing section and the loudspeaker sound producing section are communicated with the sound producing section, the other ends of the earphone sound producing section and the loudspeaker sound producing section are communicated with the outside of the equipment shell, and the extension directions of the earphone sound producing section and the loudspeaker sound producing section are different. According to the utility model, the earphone sounding section and the loudspeaker sounding section are arranged at the position close to the bottom of the equipment shell, so that the cost is reduced.

Description

Mobile phone sounding structure and mobile device

Technical Field

The utility model belongs to the technical field of speakers, and particularly relates to a mobile phone sounding structure and mobile equipment.

Background

The earphone module of the mobile phone on the market at present, the sound outlet channel of the loudspeaker module is separately designed, a loudspeaker bracket is usually arranged at the position close to the bottom in the mobile phone, the loudspeaker bracket and a hardware board in the mobile phone enclose to form the sound outlet channel of the loudspeaker module, and the sound outlet channel is isolated from other devices in the mobile phone by using sealed foam, and the earphone sound outlet channel is arranged at the position close to the top in the mobile phone, so that the design can ensure that the sound production of the earphone module and the loudspeaker module are not interfered with each other, but a plurality of devices for separating the sound outlet channel increase the weight of the mobile phone, increase the cost, occupy the space inside the mobile phone for a main board, an auxiliary board and an antenna, and possibly interfere the transmission work of the main board, the auxiliary board and the antenna in the mobile phone if the space is insufficient.

Disclosure of Invention

The utility model aims to overcome the defects and shortcomings in the prior art, provides a sound production structure of a mobile phone, reduces devices such as a bracket, foam and the like used for respectively isolating a sound outlet channel of a receiver and a sound outlet channel of a loudspeaker in the prior art, and reduces the cost.

The utility model provides a sound producing structure of a mobile phone, which comprises a device shell, a fixed plate and a loudspeaker;

the fixing plate is fixed in the equipment shell and is enclosed with the equipment shell to form an accommodating space; the loudspeaker is positioned in the accommodating space;

the fixed plate is provided with a sound outlet channel communicated with the accommodating space and the outside of the equipment shell at a position close to the bottom of the mobile phone, and the sound outlet channel comprises a sound producing section, a receiver sound producing section and a loudspeaker sound producing section which are communicated with each other; the sound producing section is located on the fixing plate and corresponds to the loudspeaker, the end of the sound producing section is communicated with the accommodating space, one ends of the earphone sound producing section and the loudspeaker sound producing section are communicated with the sound producing section, the other ends of the earphone sound producing section and the loudspeaker sound producing section are communicated with the outer side of the shell, and the extension directions of the earphone sound producing section and the loudspeaker sound producing section are different.

The utility model provides a sound producing structure of a mobile phone, wherein a sound producing channel is formed on a fixed plate, a loudspeaker produces sound and then propagates through a sound producing section, and both a receiver sound producing section and a loudspeaker sound producing section are arranged at positions close to the bottom of a device shell, so that devices such as a bracket and foam used for respectively isolating the receiver sound producing channel and the loudspeaker sound producing channel in the prior art are reduced, the cost is reduced, meanwhile, the front half part of the device shell is not occupied for placing a main board and an auxiliary board, and the space is reasonably utilized; meanwhile, when the loudspeaker function is used, the sound producing section of the earphone can assist in producing sound, and the sound loudness is enhanced.

Further, the equipment shell comprises a front shell and a rear shell which are mutually clamped; the fixing plate comprises fixing rings and an inner plate which are fixed with each other, the fixing rings are arranged around the inner plate, the fixing rings are provided with edges protruding towards two sides along the thickness direction of the inner plate, the fixing rings are positioned between the front shell and the rear shell, the edges of the front shell and the rear shell are respectively fixed with the fixing rings, and the inner plate is positioned in the accommodating space; the earphone sounding section is arranged on the fixed ring, the loudspeaker sounding section is arranged on the inner plate, and the extension directions of the earphone sounding section and the loudspeaker sounding section are mutually perpendicular. In a specific implementation manner, the earphone sound emitting section is arranged on the fixed ring, and the loudspeaker sound emitting section is arranged on the inner plate, so that the integrity and the tightness of a sound emitting channel are ensured, and the sound emitting channel is not required to be formed by surrounding with other devices; the extending directions of the earphone sound emitting section and the loudspeaker sound emitting section are vertical to separate the acoustic environment required by the earphone function from the acoustic environment required by the loudspeaker function.

Further, the width of the horn sound emitting section gradually increases in a direction away from the sound emitting section. In a specific embodiment, in order to adapt to the acoustic environment required by the loudspeaker function, the width of the sound emitting section of the loudspeaker is gradually increased so as to meet the function of enhancing the sound loudness.

Further, a plurality of horn sounding holes distributed at intervals are formed in the rear shell in a penetrating mode, and the horn sounding holes are communicated with the horn sounding sections. This is a concrete implementation, and loudspeaker sound hole interval sets up, plays the effect of transmission sound, and the back shell part between the loudspeaker sound hole plays dirt-proof effect, avoids loudspeaker sound section direct with external connection by dust jam.

Further, the rear shell comprises a rear shell bottom plate and a rear shell side wall which are fixed with each other, the rear shell side wall is arranged at the peripheral edge of the rear shell bottom plate in a protruding mode, the front shell, the rear shell bottom plate and the rear shell side wall are enclosed to form the equipment shell, and the rear shell side wall is fixed with a fixing ring of a fixing plate; the loudspeaker sound outlets are arranged on the side wall of the rear shell; the horn sounding section is obliquely arranged along the direction far away from the earphone sounding section and extends to the side wall of the rear shell to be communicated with the horn sounding hole. This is a specific implementation manner, the speaker sound section passes through the speaker sound Kong Fasheng on the side wall of the rear shell, and when in use, the side wall of the equipment shell faces the user, so that the sound production effect is prevented from being influenced by the sound production on the back of the equipment shell.

Further, the earphone sounding section is arranged along the thickness direction of the equipment shell, and is positioned at one end of the loudspeaker sounding section, which is away from the rear shell. The setting of the earphone sounding section accords with the use habit of a user, and when the earphone sounding section is used, the earphone sounding section is positioned at a position of the equipment shell, such as the front surface of the mobile phone, facing the user, so that the user can conveniently answer the mobile phone close to the ear.

Further, an embedding mechanism is arranged on the inner side of the fixed ring, the front shell is embedded in the embedding mechanism, and the edge of the fixed ring protrudes out of or is flush with the outer surface of the front shell; the earphone sound producing section extends along the direction vertical to the rear shell, the fixed ring is provided with a plurality of earphone sound producing holes distributed at intervals along the thickness direction of the equipment shell, and the earphone sound producing holes are communicated with the earphone sound producing section. The fixed ring is provided with a receiver sound outlet along the thickness direction of the equipment shell so that the receiver sound outlet faces the front of a user when the receiver function is used.

Further, the fixed plate is provided with a dustproof film, and the dustproof film is fixed on the inner plate and covers one end opening of the sounding section, which faces the loudspeaker. The dustproof film is used for preventing external dust from entering the sound outlet channel through the earphone sound outlet hole and the loudspeaker sound outlet hole and falling into the loudspeaker, so that the sound production effect is affected.

Further, sealing foam is arranged between the rear shell and the fixing plate, and the sound outlet channel is defined by the rear shell, the fixing plate and the sealing foam. The sealing foam is used for enhancing the sealing performance of the sound outlet channel.

The utility model also provides mobile equipment, which comprises a main board and the mobile phone sounding structure; the mainboard is fixed in the fixed plate of cell-phone sound production structure, the mainboard is equipped with earphone control module and loudspeaker control module, earphone control module with loudspeaker control module all with the speaker electricity of cell-phone sound production structure is connected, controls the sound production power of speaker. The utility model provides mobile equipment, wherein a loudspeaker sound emitting section and a receiver sound emitting section are arranged at the bottom of an equipment shell, so that the weight is reduced, the occupied space in the mobile equipment is reduced, and the cost is reduced.

For a better understanding and implementation, the present utility model is described in detail below with reference to the drawings.

Drawings

Fig. 1 is a schematic structural diagram of a sound emitting structure of a mobile phone in embodiment 1.

Fig. 2 is a partially enlarged view of the sound emitting structure of the mobile phone of embodiment 1.

Fig. 3 is a schematic diagram of the mounting structure of the fixing plate and the speaker of embodiment 1.

Fig. 4 is a front view of the sound emitting structure of the mobile phone of embodiment 1.

Fig. 5 is a cross-sectional view taken along the direction A-A in fig. 4.

Fig. 6 is a partial enlarged view of fig. 5.

Fig. 7 is a schematic structural view of the fixing plate of embodiment 1.

Fig. 8 is a front view of the fixing plate of embodiment 1.

Fig. 9 is a cross-sectional view of fig. 8 in the direction B-B.

Detailed Description

Embodiments of the present utility model will be described in further detail below with reference to the drawings and examples. It should be understood that the particular embodiments described herein are illustrative only and are not limiting of embodiments of the utility model. It should be further noted that, for convenience of description, only some, but not all of the structures related to the embodiments of the present utility model are shown in the drawings.

Furthermore, the terms first, second, third and the like in the description and in the claims, are used for descriptive purposes only and are not necessarily for describing relative importance or to indicate the number of features indicated or the order or timing of the description. The terms are interchangeable where appropriate. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature.

Similarly, the terms "fixed," "connected," and "connected" are used throughout the description and claims and should not be construed as limited to a direct connection. Thus, the expression "device a is connected to device B" should not be limited to devices or systems in which device a is directly connected to device B, meaning that there is a path between device a and device B, which may be a path that includes other devices or tools.

Example 1

The embodiment 1 provides a sound producing structure of a mobile phone, fig. 1 is a schematic structural diagram of the sound producing structure of the mobile phone, fig. 2 is a partial enlarged view of the sound producing structure of the mobile phone, fig. 3 is a schematic structural diagram of the mounting structure of a fixing plate and a speaker, and as shown in fig. 1-3, the sound producing structure of the mobile phone comprises a device housing, a fixing plate 2 and a speaker 3;

the front shell and the rear shell 1 are fixedly connected with each other and are enclosed to form an equipment shell;

the fixed plate 2 is fixed in the equipment shell and is enclosed with the rear shell 1 to form a containing space; the loudspeaker 3 is positioned in the accommodating space;

fig. 4 is a front view of a sound producing structure of the mobile phone, fig. 5 is a sectional view in a direction A-A in fig. 4, fig. 6 is a partial enlarged view in fig. 5, and as shown in fig. 4-6, a sound producing channel 4 which is communicated with the accommodating space and the outside of the equipment casing is formed in a position of the fixed plate 2 close to the bottom of the mobile phone, and the sound producing channel 4 comprises a sound producing section 41, a receiver sound producing section 42 and a loudspeaker sound producing section 43 which are communicated with each other; the sounding section 41 is located on the fixed plate 2 at the position corresponding to the loudspeaker 3, the end part of the sounding section 41 is communicated with the accommodating space, one ends of the earphone sounding section 42 and the loudspeaker sounding section 43 are communicated with the sounding section 41, the other ends are communicated with the outer side of the shell, and the extension directions of the earphone sounding section 42 and the loudspeaker sounding section 43 are different.

The utility model provides a sound producing structure of a mobile phone, wherein a sound producing channel 4 is arranged on a fixed plate 2, a loudspeaker 3 produces sound and then propagates through a sound producing section 41, and a receiver sound producing section 42 and a loudspeaker sound producing section 43 are arranged at positions close to the bottom of a device shell, so that devices such as a bracket and foam used for respectively isolating the receiver sound producing channel 4 and the loudspeaker sound producing channel 4 in the prior art are reduced, the cost is reduced, the front half part of the device shell in the prior art is not occupied, and the positions of a main board and an auxiliary board are not occupied, so that the space is reasonably utilized; meanwhile, when the loudspeaker function is used, the earphone sound emitting section 42 can assist sound emission, and the loudness of sound is enhanced.

Specifically, since the acoustic power required by the earpiece function and the speaker function are not the same, the acoustic environment such as shape, length and width of the earpiece sound emitting section 42 is different from the acoustic environment such as shape, length and width of the speaker sound emitting section 43, for example, in the existing design, the width of the earpiece sound emitting section 42 is usually far smaller than the width of the speaker sound emitting section 43, and only if the acoustic power is adapted to the acoustic environment, the sound can be smoothly transmitted, so that when the earpiece function is used, because the acoustic power is smaller, the sound is difficult to be emitted through the speaker sound emitting section 41, most of the sound can be emitted through the earpiece sound emitting section 42 when the earpiece function is used, and the privacy is protected; when the loudspeaker function is used, the sounding power is larger than the sounding power required by the sounding of the earphone sounding section 41, and part of sound can be emitted through the loudspeaker sounding section 41 to assist sounding and enhance the loudness of sound. Therefore, the mobile phone sounding structure provided in this embodiment 1 satisfies the sounding function while reducing the cost. In use, the speaker 3 can adjust the sounding power through circuit control, thereby switching between the speaker function and the earpiece function. The speaker 3 may be a speaker 3 with two functions of an earphone and a speaker in the prior art, or may be a speaker 3 with a speaker and a speaker 3 with different powers.

Preferably, the device housing comprises a front shell and a rear shell 1 which are mutually clamped; fig. 7 is a schematic structural view of a fixing plate, fig. 8 is a front view of the fixing plate, fig. 9 is a sectional view of fig. 8 in the direction B-B, and as shown in fig. 7-9, the fixing plate 2 includes a fixing ring 21 and an inner plate 22 fixed to each other, the fixing ring 21 is disposed around the inner plate 22, and the fixing ring 21 has edges protruding to both sides in the thickness direction of the inner plate 22, the fixing ring 21 is located between the front case and the rear case 1, edges of the front case and edges of the rear case 1 are fixed with the fixing ring 21, respectively, and the inner plate 22 is located in the accommodating space; the earphone sound emitting section 42 is arranged on the fixed ring 21, the horn sound emitting section 43 is arranged on the inner plate 22, and the extension directions of the earphone sound emitting section 42 and the horn sound emitting section 43 are mutually perpendicular. In this embodiment, the earphone sound emitting section 42 is arranged on the fixed ring 21, and the loudspeaker sound emitting section 43 is arranged on the inner plate 22, so that the integrity and the tightness of the sound emitting channel 4 are ensured, and the sound emitting channel 4 is not required to be formed by surrounding other devices; the direction of extension of the earpiece sound section 42 and the horn sound section 43 is perpendicular to separate the acoustic environment required for the earpiece function from the acoustic environment required for the horn function. The inner plate 22 is a hardware plate for installing the required main board, auxiliary board and other structures in the equipment shell, and the sounding channel is designed by utilizing the structure of the hardware plate, so that the space and the original devices of the mobile phone are fully utilized, and the number of separated loudspeaker sounding sections and earphone sounding sections is reduced.

More preferably, as shown in fig. 8, the width of the horn sounding section 43 gradually increases in a direction away from the sounding section 41. In this embodiment, in order to adapt to the acoustic environment required by the loudspeaker function, the width of the loudspeaker sound emitting section 43 is gradually increased so as to meet the function of enhancing the sound loudness.

More preferably, as shown in fig. 4 and 5, the rear shell 1 is provided with a plurality of horn sound outlets 11 in a penetrating manner, and the horn sound outlets 11 are all communicated with the horn sound outlet section 43. This is a specific embodiment, the horn sounding holes 11 are arranged at intervals to play a role in transmitting sound, and the rear shell 1 part between the horn sounding holes 11 plays a role in dust prevention, so that the horn sounding sections 43 are prevented from being directly connected with the outside and blocked by dust.

More preferably, as shown in fig. 2, 5 and 6, the rear case 1 includes a rear case bottom plate 12 and a rear case side wall 13 fixed to each other, the rear case side wall 13 is convexly disposed at the peripheral edge of the rear case bottom plate 12, and the front case, the rear case bottom plate 12 and the rear case side wall 13 enclose to form a device case, and the rear case side wall 13 is fixed to a fixing ring 21 of the fixing plate 2; a plurality of horn sound outlets are arranged on the side wall 13 of the rear shell; the horn section 43 is disposed obliquely in a direction away from the earpiece section 42 and extends to the rear housing sidewall 13 in communication with the horn aperture 11. This is a specific embodiment, the speaker sound emitting section 43 emits sound through the speaker sound emitting hole 11 of the rear housing side wall 13, and the side wall of the device housing faces the user when in use, so that the sound emitting effect is prevented from being affected by the sound emitting on the back of the device housing.

More preferably, as shown in fig. 4-9, the earpiece sound section 42 is arranged in the thickness direction of the device housing, at the end of the horn sound section 43 facing away from the rear housing 1. The earpiece sound section 42 is arranged to conform to the user's usage habits, and in use, the earpiece sound section 42 is positioned in a device housing, such as a front side of a cell phone, toward the user for facilitating use in listening the cell phone near the ear.

More preferably, the inner side of the fixed ring 21 is provided with an embedding mechanism, the front shell is embedded in the embedding mechanism, and the edge of the fixed ring 21 protrudes out of or is flush with the outer surface of the front shell; the earphone sound emitting section 42 extends along the direction perpendicular to the rear shell 1, and the fixing ring 21 is provided with a plurality of earphone sound emitting holes 213 distributed at intervals along the thickness direction of the equipment shell, and the earphone sound emitting holes 213 are communicated with the earphone sound emitting section 42. The retainer 21 is provided with a receiver sound hole 213 along the thickness direction of the device housing so that the receiver sound hole 213 is disposed toward the front of the user when the receiver function is used.

Specifically, as shown in fig. 2, the fixing ring 21 includes a fixing ring body 211 and a metal piece 212, and the earphone sound emitting section 42 is opened on the fixing ring body 211, and a fitting groove is formed at an end of the earphone sound emitting section 42 away from the sound emitting section 41; the metal piece 212 is provided with a plurality of earphone sound outlet holes 213 in a penetrating way, and the metal piece 212 is arranged in the embedded groove so that the earphone sound outlet holes 213 are communicated with the earphone sound outlet section 42.

More preferably, the fixing plate 2 is provided with a dust-proof film fixed to the inner plate 22 and covering an end opening of the sound emitting section 41 toward the speaker 3. The dustproof film is used for preventing external dust from entering the sound outlet channel 4 through the earphone sound outlet 213 and the loudspeaker sound outlet 11 and falling into the loudspeaker 3, so that the sound production effect is affected.

More preferably, a sealing foam is arranged between the rear shell 1 and the fixed plate 2, and the rear shell 1, the fixed plate 2 and the sealing foam define a sound outlet channel 4. The sealing foam is used for enhancing the tightness of the sound outlet channel 4. Specifically, the rear shell 1 is fixedly embedded with the fixing ring 21, and a gap is reserved between the rear shell 1 and the inner plate 22, so that sealing foam is arranged to ensure the tightness between the loudspeaker sound outlet section and the loudspeaker sound outlet hole on the side wall of the rear shell 1.

Example 2

The embodiment 2 provides a mobile device, including a main board and the mobile phone sounding structure of embodiment 1; the mainboard is fixed in mobile phone sounding structure's fixed plate 2, and the mainboard is equipped with earphone control module and loudspeaker control module, and earphone control module and loudspeaker control module all are connected with mobile phone sounding structure's speaker 3 electricity, control speaker 3's sounding power.

The embodiment 2 provides a mobile device, in which the speaker sound emitting section 43 and the earpiece sound emitting section 42 are disposed at the bottom of the device housing, so that the weight is reduced, the occupied space inside the mobile device is reduced, and the cost is reduced. Specifically, the speaker 3 includes a receiver module and a speaker module, the receiver control module is electrically connected with the receiver module and controls the sounding power of the receiver module, and the speaker control module is electrically connected with the speaker module and controls the sounding power of the speaker module, thereby completing the conversion of the receiver function and the speaker function of the speaker 3.

The present utility model is not limited to the above-described embodiments, but, if various modifications or variations of the present utility model are not departing from the spirit and scope of the present utility model, the present utility model is intended to include such modifications and variations as fall within the scope of the claims and the equivalents thereof.

Claims (10)

1. A sound producing structure of a mobile phone is characterized in that:

comprises a device shell, a fixed plate and a loudspeaker;

the fixing plate is fixed in the equipment shell and is enclosed with the equipment shell to form an accommodating space; the loudspeaker is positioned in the accommodating space;

the fixed plate is provided with a sound outlet channel communicated with the accommodating space and the outside of the equipment shell at a position close to the bottom of the mobile phone, and the sound outlet channel comprises a sound producing section, a receiver sound producing section and a loudspeaker sound producing section which are communicated with each other; the sound producing section is located on the fixing plate and corresponds to the loudspeaker, the end of the sound producing section is communicated with the accommodating space, one ends of the earphone sound producing section and the loudspeaker sound producing section are communicated with the sound producing section, the other ends of the earphone sound producing section and the loudspeaker sound producing section are communicated with the outside of the equipment shell, and the extension directions of the earphone sound producing section and the loudspeaker sound producing section are different.

2. The sound generating structure of a mobile phone according to claim 1, wherein;

the equipment shell comprises a front shell and a rear shell which are clamped with each other;

the fixing plate comprises fixing rings and an inner plate which are fixed with each other, the fixing rings are arranged around the inner plate, the fixing rings are provided with edges protruding towards two sides along the thickness direction of the inner plate, the fixing rings are positioned between the front shell and the rear shell, the edges of the front shell and the rear shell are respectively fixed with the fixing rings, and the inner plate is positioned in the accommodating space;

the earphone sounding section is arranged on the fixed ring, and the loudspeaker sounding section is arranged on the inner plate; the extending directions of the earphone sound emitting section and the loudspeaker sound emitting section are mutually perpendicular.

3. The sound generating structure of a mobile phone according to claim 2, wherein:

the width of the loudspeaker sound producing section gradually increases along the direction away from the sound producing section.

4. A handset sound structure according to claim 3, wherein:

the rear shell is penetrated and provided with a plurality of horn sounding holes which are distributed at intervals, and a plurality of horn sounding holes are communicated with the horn sounding sections.

5. The sound generating structure of a mobile phone as claimed in claim 4, wherein:

the rear shell comprises a rear shell bottom plate and a rear shell side wall which are fixed with each other, the rear shell side wall is arranged at the peripheral edge of the rear shell bottom plate in a protruding mode, the front shell, the rear shell bottom plate and the rear shell side wall are enclosed to form the equipment shell, and the rear shell side wall is fixed with a fixing ring of a fixing plate;

the loudspeaker sound outlets are arranged on the side wall of the rear shell; the horn sounding section is obliquely arranged along the direction far away from the earphone sounding section and extends to the side wall of the rear shell to be communicated with the horn sounding hole.

6. The sound generating structure of a mobile phone according to any one of claims 2 to 5, wherein:

the earphone sounding section is arranged along the thickness direction of the equipment shell and is positioned at one end of the loudspeaker sounding section, which is away from the rear shell.

7. The sound generating structure of a mobile phone as claimed in claim 6, wherein:

the inner side of the fixed ring is provided with an embedding mechanism, the front shell is embedded in the embedding mechanism, and the edge of the fixed ring protrudes out of or is flush with the outer surface of the front shell; the earphone sound producing section extends along the direction vertical to the rear shell, the fixed ring is provided with a plurality of earphone sound producing holes distributed at intervals along the thickness direction of the equipment shell, and the earphone sound producing holes are communicated with the earphone sound producing section.

8. The sound generating structure of a mobile phone as claimed in claim 7, wherein:

the fixed plate is provided with a dustproof film, and the dustproof film is fixed on the inner plate and covers the end opening of the sounding section, which faces the loudspeaker.

9. The sound generating structure of a mobile phone as claimed in claim 8, wherein:

and sealing foam is arranged between the rear shell and the fixing plate, and the sound outlet channel is defined by the rear shell, the fixing plate and the sealing foam.

10. A mobile device, characterized by:

comprises a main board and the mobile phone sounding structure as claimed in any one of claims 1-9;

the mainboard is fixed in the fixed plate of cell-phone sound production structure, the mainboard is equipped with earphone control module and loudspeaker control module, earphone control module with loudspeaker control module all with the speaker electricity of cell-phone sound production structure is connected, controls the sound production power of speaker.