CN215499426U

CN215499426U - Speaker module and electronic equipment

Info

Publication number: CN215499426U
Application number: CN202120903252.0U
Authority: CN
Inventors: 颜廷帅; 王景伟; 陈国强
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2021-04-28
Filing date: 2021-04-28
Publication date: 2022-01-11
Anticipated expiration: 2031-04-28

Abstract

The utility model relates to the technical field of electroacoustic, and particularly discloses a loudspeaker module and electronic equipment, which comprise: a metal housing having a receiving cavity; the integrated metal support comprises a first sound guide plate and a base with a notch on one side, wherein the edge of the notch side of the base extends towards the direction close to the sound outlet in an inclined mode to form the first sound guide plate, and the first sound guide plate and the shell form a sound guide channel communicated with the sound outlet; the front cavity is communicated with the sound outlet through the sound guide channel. The utility model provides a more frivolous that shell and support can design has increased the volume of accomodating the chamber, inhales the filling space of sound granule and further enlarges, has improved acoustic performance, especially low frequency acoustic performance, and integral type metal support not only can play the free effect of support speaker in addition, can also form the sound channel jointly with the shell, can make the overall structure of speaker module simpler, compact from this, promotes assembly efficiency.

Description

Speaker module and electronic equipment

Technical Field

The utility model relates to the technical field of electroacoustic, and particularly discloses a loudspeaker module and electronic equipment.

Background

In the related art, the housing of the speaker module includes an upper housing and a lower housing, the upper housing and the lower housing are respectively injection-molded plastic parts, and the upper housing and the lower housing are sealed by ultrasonic welding. However, due to the limitation of the injection adjustment of the module housing, the ultrasonic sidewall and the module housing must have a certain thickness to meet the requirements of the process. Therefore, the thickness part of supersound lateral wall and module casing among the above-mentioned technical scheme can occupy more sound cavity volume to can influence the acoustic performance of speaker module.

In order to increase the volume of the sound cavity of the loudspeaker module, in another related technology, the loudspeaker module comprises an upper cover plate made of metal materials, a lower cover plate and a coaming, wherein the two ends of the coaming are respectively matched with the upper cover plate and the lower cover plate to limit the installation cavity of the loudspeaker module, and a loudspeaker monomer is arranged in the installation cavity. The loudspeaker module further comprises a metal support, the metal support is arranged in the installation cavity and is connected with the upper cover plate in a welded mode, the metal support comprises a supporting portion for supporting the loudspeaker body and a sound guide piece used for guiding sound, and a sound outlet which is opposite to the sound guide piece is formed in the enclosing plate. From this, through the aforesaid setting, the casing and the metal support of metal material can increase the sound cavity volume of speaker module to a certain extent. However, the structural design of the speaker module in the above technical solution is relatively complex, and the assembly efficiency is low.

SUMMERY OF THE UTILITY MODEL

The present invention is directed to a speaker module and an electronic device, which solve at least one of the problems described above.

In order to achieve the above object, the present invention provides a speaker module, including:

the metal shell is provided with an accommodating cavity, and the side surface of the shell is provided with a sound outlet communicated with the accommodating cavity;

the integrated metal support is positioned in the accommodating cavity and comprises a first sound guide plate and a base with a notch on one side, the edge of the notch side of the base extends towards the direction close to the sound outlet in an inclined mode to form the first sound guide plate, and the first sound guide plate and the shell form a sound guide channel communicated with the sound outlet together;

the loudspeaker monomer supports to be fixed in the base, and will accept the chamber and separate for antechamber and back chamber, wherein, the antechamber passes through lead the acoustic passageway with the sound outlet intercommunication.

The utility model also provides electronic equipment comprising the loudspeaker module for the electronic equipment.

In addition, the speaker module of the present invention may have the following additional features.

According to an embodiment of the present invention, the housing includes an upper shell and a lower shell fixed to the upper shell, the upper shell and the lower shell together define the accommodating cavity, the upper shell includes a first bottom plate and a baffle plate formed around the first bottom plate, the sound outlet is opened on the baffle plate, the base is fixed to the first bottom plate, and the integrated metal bracket is hermetically connected to the upper shell.

According to an embodiment of the present invention, a rail surrounding the sound outlet is disposed inside the baffle, a bottom surface of the rail is hermetically connected to the baffle, and the rail and the first sound guide plate together form a sound guide channel.

According to an embodiment of the present invention, the enclosure includes a first side plate, a second side plate disposed opposite to the first side plate, and a second sound guide plate connecting the first side plate and the second side plate, bottom walls of the first side plate and the second side plate are connected to the first bottom plate, a bottom wall of the base is connected to the first bottom plate in a sealing manner, two opposite side walls of the first sound guide plate are respectively connected to the first side plate and the second side plate in a sealing manner, and the first sound guide plate, the second sound guide plate, the first side plate, and the second side plate together form the sound guide channel.

According to an embodiment of the present invention, the second sound guide plate extends obliquely toward a direction close to the first bottom plate.

According to one embodiment of the utility model, the first bottom plate is provided with an avoiding opening, and part of the base is embedded in the avoiding opening and is connected with the first bottom plate in a sealing manner.

According to an embodiment of the utility model, the base comprises a second bottom plate and a third side plate arranged around the second bottom plate, the second bottom plate is embedded in the avoidance port, the notch penetrates through the third side plate and is communicated with the sound outlet, the third side plate is bent towards a direction far away from the loudspeaker single body to form a supporting step, and the loudspeaker single body is abutted and fixed on the supporting step.

According to one embodiment of the utility model, the third side plate is provided with a penetrating end face formed by penetrating through the notch, and the penetrating end face is connected with the side faces of the first side plate and the second side plate in a sealing mode.

According to one embodiment of the utility model, the tail end of the supporting step is bent towards the direction far away from the loudspeaker single body to form an avoiding step; the loudspeaker module is still including setting up the inferior valve with ventilative separator between the speaker monomer, ventilative separator covers the speaker monomer, just the bottom surface edge of ventilative separator is fixed dodge the end of step.

According to one embodiment of the utility model, the rear cavity is filled with sound-absorbing particles, the lower shell is provided with a filling hole communicated with the rear cavity, and the filling hole is covered with a sealing cover plate.

Compared with the prior art, the utility model has the following beneficial effects:

1. the shell and the integral type metal support of this application all adopt the metal material, compare in traditional injection molding, the shell and the support of this application can design more frivolous, have increased the volume of accomodating the chamber, inhale the filling space of sound granule and further enlarge, have improved acoustic performance, especially low frequency acoustic performance.

2. The utility model provides an integral type metal support not only can play the free effect of support speaker, can also form the sound channel jointly with the shell, can make the overall structure of speaker module simpler, compact from this, promotes assembly efficiency.

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 description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the structures shown in the drawings without creative efforts.

Fig. 1 is a perspective view of a speaker module according to an embodiment of the present application;

fig. 2 is a perspective view of a speaker module according to an embodiment of the present application;

FIG. 3 is an exploded view of a speaker module according to an embodiment of the present application;

FIG. 4 is a schematic structural view of an embodiment of the present application;

FIG. 5 is a schematic structural diagram of an upper shell according to an embodiment of the present application;

fig. 6 is a cross-sectional view at a-a of fig. 2.

The implementation, functional features and advantages of the objects of the present invention will be further explained with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, 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 invention.

It should be noted that all the directional indicators (such as up, down, left, right, front, and rear … …) in the embodiment of the present invention are only used to explain the relative position relationship between the components, the movement situation, etc. in a specific posture (as shown in the drawing), and if the specific posture is changed, the directional indicator is changed accordingly.

In addition, the descriptions related to "first", "second", etc. in the present invention are only for descriptive purposes and are 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 the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "connected," "secured," and the like are to be construed broadly, and for example, "secured" may be a fixed connection, a removable connection, or an integral part; can be mechanically or electrically connected; they may be directly connected or indirectly connected through intervening media, or they may be connected internally or in any other suitable relationship, unless expressly stated otherwise. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In addition, the technical solutions in the embodiments of the present invention 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, such a combination of technical solutions should not be considered to exist, and is not within the protection scope of the present invention.

A speaker module 100 according to some embodiments of the present invention is described below with reference to fig. 1-6.

As shown in fig. 1 to 6, an embodiment of the present invention provides a speaker module 100, where the speaker module 100 may be applied to an electronic device such as a mobile phone, a tablet, a stereo, and the like, and the speaker module 100 may include: the loudspeaker comprises a metal shell 10, a loudspeaker single body 11, an integrated metal support 12, a breathable isolating piece 13 and a flexible printed circuit board 14, wherein the shell 10 is provided with an accommodating cavity, the side surface of the shell 10 is provided with a sound outlet 101 communicated with the accommodating cavity, the integrated metal support 12 is positioned in the accommodating cavity, the integrated metal support 12 comprises a first sound guide plate 120 and a base 122 with a notch 121 at one side and a concave middle part, the first sound guide plate 120 and the base 122 can form the integrated metal support 12 through an integrated punch forming process, the edge of the notch side of the base 122 extends towards the direction close to the sound outlet 101 to form the first sound guide plate 120, the first sound guide plate 120 and the shell 10 form a sound guide channel 15 communicated with the sound outlet 101, the loudspeaker single body 11 is supported and fixed in the base 122 and divides the accommodating cavity into a front cavity 102 and a rear cavity 103, wherein the front chamber 102 communicates with the sound outlet 101 through the sound guide passage 15 to form a side sound emitting structure.

It should be noted that after the speaker unit 11 emits sound, the sound passes through the front cavity 102 and the sound guiding channel 15 and finally exits to the outside of the electronic device through the sound outlet 101, or external sound enters the speaker module 100 through the sound outlet 101.

In this embodiment, with continued reference to fig. 3, the housing 10 may be formed as an integral structure, or may be formed as a split structure, at this time, the housing 10 includes an upper shell 104 and a lower shell 105, the lower shell 105 is plate-shaped, the lower shell 105 may be hermetically connected with the upper shell 103 by adhering or welding, and the upper shell 104 and the lower shell 105 together form an accommodating cavity, and this arrangement has the characteristics of simple installation and convenient maintenance. The housing 10 and the integral metal bracket 12 may be made of stainless steel, but not limited to stainless steel, and other thin-walled materials with the same characteristics may be used.

Further, with continued reference to fig. 5, the upper shell 104 may include a first bottom plate 1041 and a baffle 1042 formed around the first bottom plate 1041, the sound outlet 101 is opened on the baffle 1042, and the one-piece metal bracket 12 is hermetically connected to the upper shell 104. Specifically, the one-piece metal bracket 12 may be welded and hermetically connected to the upper case 104, and the first sound guide plate 120 and the upper case 104 together form the hermetically sealed sound guide passage 15.

It should be noted that, with reference to fig. 3 and 5, a rail 16 surrounding the sound outlet 101 is disposed inside the baffle 1042, a bottom surface of the rail 16 is hermetically connected to the first base 1041, and the rail 16 and the first sound guiding plate 120 together form the sound guiding channel 15. Specifically, the rail 16 includes a first side plate 160, a second side plate 161 disposed opposite to the first side plate 160, and a second sound guiding plate 162 connected to the first side plate 160 and the second side plate 161, bottom walls of the first side plate 160 and the second side plate 161 are respectively connected to the first bottom plate 1041, a bottom wall of the base 122 is hermetically connected to the first bottom plate 1041, two opposite side walls of the first sound guiding plate 120 are respectively hermetically connected to the first side plate 160 and the second side plate 161, and the first sound guiding plate 120, the second sound guiding plate 162, the first side plate 160, and the second side plate 161 form a sealed sound guiding channel 15 together.

It should be noted that, compared with the traditional method of forming the sound guiding channel 15 by injection molding on the upper shell, the first sound guiding plate 120 on the integrated metal bracket 12 is used as a part of the sound guiding channel 15 in this embodiment, so that the whole speaker module 100 is more simply and compactly assembled, the structure of the speaker module 100 is simplified, and the space occupied by the speaker module 100 is reduced.

In this embodiment, with reference to fig. 6, the second sound guiding plate 162 extends downward in a direction approaching the first bottom plate 1041, and the first sound guiding plate 120 extends upward in a direction away from the first bottom plate 1041. In this way, the first and second

sound guide plates

120 and 162, the first and

second side plates

160 and 161 form the inclined sound guide channel 15, thereby forming a side sound outlet structure. Above-mentioned structural design is more ingenious, and convenient assembling and sound conduction are respond well.

In this embodiment, with continued reference to fig. 3 to 4, the base 122 includes a second bottom plate 1221 and a third side plate 1222 surrounding the second bottom plate 1221, the notch 121 penetrates the third side plate 1222 to communicate with the sound outlet 101, the third side plate 1222 is bent in a direction away from the speaker unit 11 to form a supporting step 1223, and the speaker unit 11 is abutted and fixed on the supporting step 1223. Specifically, by providing the supporting step 1223 fixed in abutment with the speaker unit 11, the speaker unit 11 can be placed on the supporting step 1223, thereby making the assembly of the speaker unit 11 more convenient and stable.

In addition, the speaker unit 11 and the supporting step 1223 can be sealed and fixed by glue, so that the speaker unit 11, the third side plate 1222 and the second bottom plate 1221 together form the sealed front cavity 102, and the acoustic performance of the speaker module 100 is prevented from being affected.

With reference to fig. 4 to 5, optionally, the first bottom plate 1041 is provided with an avoiding opening 1043, and a part of the base 122 is embedded in the avoiding opening 1043, specifically, in this embodiment, the second bottom plate 1221 may be completely embedded in the avoiding opening 1043 to be in sealed fit with the first bottom plate 1041, so that, through the above arrangement, not only a weight reduction effect may be performed on the speaker module 100, but also the matching structure of the base 122 and the upper shell 104 may be more compact, the volume of the cavity in the speaker module 100 may be increased, and the acoustic performance thereof may be improved.

Further, with continued reference to fig. 4, the third side plate 1222 has a penetrating end face 1224 formed by penetrating through the notch 121, and the penetrating end face 1224 is connected with the side faces of the first side plate 160 and the second side plate 161 in a sealing manner. Specifically, the penetrating end face 1224 and the side faces of the first side plate 160 and the second side plate 161 may be sealed by glue, so as to ensure the isolation of the front cavity 102 and the rear cavity 103 and prevent the acoustic performance of the speaker module 100 from being affected.

With continued reference to fig. 3-4 and 6, the end of the support step 1223 is bent away from the speaker unit 11 to form an avoidance step 1225; the air-permeable partition 13 covers the speaker unit 11, and the bottom surface edge of the air-permeable partition 13 is sealingly fixed to the end of the escape step 1225. Specifically, fixing the air-permeable partition 13 to the avoidance step 1225 can improve the stability of installation of the air-permeable partition 13.

Further, the ventilating spacer 13 separates the speaker unit 11 from the rear cavity 103, so that the rear cavity 103 can be filled with sound-absorbing particles, the lower shell 105 is provided with a filling hole 1051 communicated with the rear cavity 103, and the filling hole 1051 is covered with the sealing cover plate 17. In actual assembly process, will inhale the sound granule through filling hole 1051 and fill in rear cavity 103, sealed apron 17 can prevent to inhale the sound granule and reveal in rear cavity 103, guarantee the stability and the reliability of speaker module 100 work.

In this embodiment, with reference to fig. 3, one end of the flexible printed circuit board 14 is connected to the speaker unit 11, and the other end is connected to an external electrical signal, and the flexible printed circuit board 14 includes a body 140 located in the accommodating cavity, a connecting arm 141 extending from two ends of the body 140 toward the speaker unit 11 and fixedly electrically connected to the speaker unit 11, and an extending arm 142 extending from the body 140 toward a direction away from the speaker unit 11 and penetrating through the housing 10. Specifically, unlike the conventional wire bonding connection, the connecting arm 141 and the extending arm 142 directly extending from the body 140 can reduce poor contact at the wire connection, thereby improving the acoustic performance of the speaker module 100.

Compared with the prior art, shell 10 and integral type metal support 12 in this embodiment all adopt the metal material, compare in traditional injection molding, and the volume in chamber has been accomodate in lighter and thinner that shell 10 and metal support 12 of this application can be processed, inhales the filling space of sound granule and further enlarges, has improved acoustic performance, especially low frequency acoustic performance. Moreover, the integrated metal bracket 12 not only can support the speaker unit 11, but also can cooperate with the housing 10 to form the sound guide channel 15, so that the structure of the speaker module 100 can be simplified, and the assembly efficiency can be improved.

The electronic device according to the present invention comprises the speaker module 100 according to the above-described embodiment of the present invention. The electronic equipment can be a mobile phone, a tablet personal computer, an earphone, intelligent wearable equipment and the like. According to the electronic device of the present invention, by providing the speaker module 100, not only the assembly space of the electronic device can be saved, but also the sound production effect of the electronic device can be improved.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the scope of the present invention, and all modifications and equivalents of the present invention, which are made by the contents of the present specification and the accompanying drawings, or directly/indirectly applied to other related technical fields, are included in the scope of the present invention.

Claims

1. A speaker module, comprising:

2. The speaker module as claimed in claim 1, wherein the housing comprises an upper shell and a lower shell fixed to the upper shell, the upper shell and the lower shell together define the receiving cavity, the upper shell comprises a first bottom plate and a baffle plate formed around the first bottom plate, the sound outlet is formed on the baffle plate, the base is fixed to the first bottom plate, and the integrated metal bracket is hermetically connected to the upper shell.

3. The speaker module as claimed in claim 2, wherein a rail surrounding the sound outlet is disposed on the inner side of the baffle, the bottom surface of the rail is hermetically connected to the first bottom plate, and the rail and the first sound guide plate together form a sound guide channel.

4. The speaker module as claimed in claim 3, wherein the enclosure comprises a first side plate, a second side plate disposed opposite to the first side plate, and a second sound guiding plate connecting the first side plate and the second side plate, wherein bottom walls of the first side plate and the second side plate are connected to the first bottom plate, a bottom wall of the base is connected to the first bottom plate in a sealing manner, two opposite side walls of the first sound guiding plate are respectively connected to the first side plate and the second side plate in a sealing manner, and the first sound guiding plate, the second sound guiding plate, the first side plate and the second side plate together form the sound guiding channel.

5. The speaker module as claimed in claim 4, wherein the second sound guide plate extends obliquely toward the first bottom plate.

6. The speaker module as claimed in claim 2, wherein the first base plate has an avoiding opening, and a portion of the base is embedded in the avoiding opening and hermetically connected to the first base plate.

7. The speaker module as claimed in claim 6, wherein the base includes a second bottom plate and a third side plate surrounding the second bottom plate, the second bottom plate is embedded in the avoiding opening, the notch extends through the third side plate and communicates with the sound outlet, the third side plate is bent in a direction away from the speaker unit to form a supporting step, and the speaker unit is fixed on the supporting step in an abutting manner.

8. The speaker module as claimed in claim 7, wherein the third side plate has a through end surface formed by a notch, and the through end surface is connected with the side surfaces of the first and second side plates in a sealing manner.

9. The speaker module as claimed in claim 7, wherein the end of the support step is bent away from the speaker unit to form an avoiding step; the loudspeaker module is still including setting up the inferior valve with ventilative separator between the speaker monomer, ventilative separator covers the speaker monomer, just the bottom surface edge of ventilative separator is fixed dodge the end of step.

10. The speaker module as claimed in any one of claims 2-9, wherein the back cavity is filled with sound-absorbing particles, the lower shell defines a filling hole communicating with the back cavity, and the filling hole is covered with a sealing cover plate.

11. An electronic device comprising a speaker module according to any one of claims 1-10.