CN212086480U

CN212086480U - Loudspeaker module and electronic equipment

Info

Publication number: CN212086480U
Application number: CN202021249225.8U
Authority: CN
Inventors: 杨丽萍; 杨赟
Original assignee: Goertek Inc
Current assignee: Goertek Inc
Priority date: 2020-06-30
Filing date: 2020-06-30
Publication date: 2020-12-04
Anticipated expiration: 2030-06-30

Abstract

The utility model discloses a speaker module and electronic equipment, speaker module includes: the sound outlet channel is communicated with the external space; the loudspeaker single body is arranged in the installation cavity through the supporting wall, and the installation cavity is divided into a front cavity and a rear cavity by the shell and the loudspeaker single body; a diversion trench is formed between the shell and the loudspeaker monomer and is communicated with the front cavity and the sound outlet channel. The utility model discloses be formed with the guiding gutter between shell and speaker monomer in the speaker module, the adjustable air current flow direction of guiding gutter for the air current of front cavity needn't meet the barricade to the in-process that the passageway flows of making a sound, but directly transmits to the passageway of making a sound through the guiding gutter, reduces the production of flowing noise, avoids appearing the condition of speaker acoustic performance distortion, guarantees that sound quality is good, improves user's use experience degree.

Description

Loudspeaker module and electronic equipment

Technical Field

The utility model relates to an acoustics device technical field, in particular to speaker module and electronic equipment.

Background

With the development of technologies of mobile electronic devices, such as mobile phones, higher requirements are put on the performance of speakers, such as sound quality. At present, in the structural design of speaker, the sound outlet of antechamber is not just to the vibrating diaphragm, and when the air current of vibrating diaphragm vibration flowed to the sound outlet, the barricade can be met, and the production is flowed and is made an uproar, causes speaker acoustic performance distortion, and the sound is bad, leads to sound quality not good, influences user's use and experiences.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a speaker module and electronic equipment aims at solving among the prior art speaker and produces the problem that the stream is made an uproar and is leaded to the sound quality not good.

In order to achieve the above object, the utility model provides a speaker module, speaker module includes:

the sound generating device comprises a shell, a sound generating channel and a sound guide plate, wherein a mounting cavity and the sound generating channel are formed in the shell, and the shell is provided with a sound generating hole for communicating the sound generating channel with an external space;

the loudspeaker single body is arranged in the mounting cavity through the supporting wall, and the mounting cavity is divided into a front cavity and a rear cavity by the shell and the loudspeaker single body;

a diversion trench is formed between the shell and the loudspeaker monomer and is communicated with the front cavity and the sound outlet channel.

Preferably, the support wall includes a support top wall provided on the inner wall of the housing and a support side wall extending from the support top wall to a side away from the front cavity; the housing and the supporting side wall enclose the sound outlet channel, and the flow guide groove is formed between the supporting side wall and one side wall of the housing.

Preferably, a guide plate is arranged between the supporting side wall and the housing, one side of the guide plate is connected with the supporting side wall, the other side of the guide plate is connected with one side shell wall of the housing, the supporting side wall and the guide plate define the guide groove, and the sound outlet channel is communicated with one end of the guide groove.

Preferably, the first end of the baffle is far away from the sound channel, the second end of the baffle extends to the sound channel, the front cavity is located above the rear cavity, the supporting top wall is arranged close to the upper edge of the shell, and the baffle is arranged gradually from the first end to the second end of the baffle and the distance between the supporting top walls.

Preferably, the upper surface of the baffle is an inclined plane, and the inclined plane is arranged in a direction from the first end to the second end of the baffle in an inclined and downward manner;

or,

the upper surface of guide plate is the cambered surface, just the indent side of cambered surface sets up.

Preferably, the first end of the baffle is flush with the upper edge of the support sidewall and the second end of the baffle is flush with the lower edge of the support sidewall.

Preferably, the support sidewall includes a first sidewall and a second sidewall connected to each other, the sound outlet channel is defined between the first sidewall and the housing, the guide groove is formed between the second sidewall and a sidewall wall of the housing disposed opposite to the second sidewall, and the first sidewall is inclined toward one side of the sound outlet channel from top to bottom.

Preferably, the sound outlet is provided in a side wall of the housing opposite to the first side wall.

Preferably, the sound outlet channel is arranged corresponding to the mounting cavity, and the diversion trench is communicated with a side edge area of the sound outlet channel.

Preferably, the sound outlet channel and the mounting cavity are distributed in a staggered mode, and the diversion trench is communicated with the middle area of the sound outlet channel.

Preferably, the housing, the support wall and the baffle are integrally formed.

Preferably, the upper end of the housing is open, the speaker module further comprises a cover plate covering the open, the inner wall of the housing is further provided with a mounting flange, the mounting flange and the supporting top wall are both annularly arranged, the mounting flange is connected above the supporting top wall, a mounting space is formed between the mounting flange and the upper edge of the housing, the cover plate is accommodated in the mounting space, and the edge of the cover plate is supported by the mounting flange and abutted against the inner wall of the housing.

Preferably, the speaker assembly includes a vibration system and a magnetic circuit system, the vibration system includes a diaphragm and a voice coil for driving the diaphragm to vibrate, the diaphragm is connected to the housing, the magnetic circuit system includes a central magnet and edge magnets distributed outside the central magnet, a magnetic gap is formed between the central magnet and the edge magnets, and the voice coil is suspended in the magnetic gap.

The utility model also provides an electronic equipment, electronic equipment includes as above speaker module.

The technical scheme of the utility model, the speaker module is when using, and the speaker monomer produces the vibration, arouses the atmospheric pressure in the front chamber to produce and change to transmit to the passageway of sounding through the guiding gutter, and then spread to the exterior space through the phonate hole. The guiding gutter is formed between shell and speaker monomer in this embodiment speaker module, the adjustable air current flow direction of guiding gutter for the air current of front chamber need not meet the barricade at the in-process that flows to the sound channel, but directly transmits to the sound channel through the guiding gutter, reduces the production of flowing noise, avoids appearing the condition of speaker acoustic performance distortion, guarantees that sound quality is good, improves user's use experience degree.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be 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 an assembly diagram of a speaker module according to an embodiment of the present invention;

fig. 2 is an exploded view of a speaker module according to an embodiment of the present invention at a viewing angle;

fig. 3 is an exploded view of a speaker module according to another view angle of the present invention;

fig. 4 is a schematic cross-sectional view of a speaker module according to another embodiment of the present invention;

fig. 5 is a schematic cross-sectional view of a speaker module according to another embodiment of the present invention;

fig. 6 is a schematic view of a speaker module according to another embodiment of the present invention.

The reference numbers illustrate:

the objects, features and advantages of the present invention will be further described with reference to the accompanying drawings.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

It should be noted that, if directional indications (such as upper, lower, left, right, front and rear … …) are involved in the embodiment of the present invention, the directional indications are only used to explain the relative position relationship between the components, the motion situation, etc. in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are changed accordingly.

In addition, if there is a description relating to "first", "second", etc. in the embodiments of the present invention, 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.

The present invention is described in the directions of "up", "down", "front", "back", "left", "right", etc. with reference to the directions shown in fig. 1 and 5, and is only used to explain the relative positional relationship between the respective components in the postures shown in fig. 1 and 5, and if the specific posture is changed, the directional indication is correspondingly changed accordingly.

The utility model provides a speaker module.

As shown in fig. 1 to 4, in the present embodiment, the speaker module 100 includes a housing 10 and a speaker unit 20, wherein a mounting cavity 11 and a sound outlet channel 12 are formed in the housing 10, and the housing 10 is opened with a sound outlet hole 13 communicating the sound outlet channel 12 with an external space. The inner wall of the housing 10 is provided with a support wall 14, and the speaker unit 20 is mounted in the mounting chamber 11 through the support wall 14. The installation cavity 11 is partitioned into a front cavity 16 and a rear cavity (not shown) by the housing 10 and the speaker unit 20. A diversion trench 15 is formed between the housing 10 and the speaker unit 20, and the diversion trench 15 communicates the front cavity 16 and the sound outlet channel 12.

Specifically, the speaker unit 20 of the present embodiment is supported at its outer periphery on the support wall 14, and the speaker unit 20 is mounted in the mounting cavity 11 of the housing 10. The sound emitting passage 12 is provided on one side of the mounting chamber 11, and the front chamber 16 communicates with the sound emitting passage 12 through the guide groove 15. When the speaker module 100 is in use, the speaker unit 20 vibrates, which causes a change in air pressure in the front cavity 16, and the air pressure is transmitted to the sound outlet channel 12 through the guiding groove 15, and then is transmitted to the external space through the sound outlet hole 13. The diversion trench 15 is formed between the housing 10 and the speaker unit 20 in the speaker module 100 of the present embodiment, and the diversion trench 15 can adjust the airflow direction, so that the airflow in the front cavity 16 does not need to encounter a retaining wall in the flowing process to the sound outlet channel 12, but directly transfers to the sound outlet channel 12 through the diversion trench 15, thereby reducing the generation of flow noise, avoiding the occurrence of the distortion of the acoustic performance of the speaker, ensuring good sound quality, and improving the user experience.

The supporting wall 14 of the present embodiment includes a supporting top wall 141 and a supporting side wall 142, the supporting top wall 141 is disposed on the inner wall of the housing 10, and the supporting side wall 142 extends from the supporting top wall 141 to a side away from the front chamber 16; the housing 10 and the support side wall 142 enclose the acoustic channel 12, and the baffle 15 is formed between the support side wall 142 and a side wall of the housing 10.

Specifically, in the housing 10 of the present embodiment, the supporting top wall 141 is disposed on the inner wall of the housing 10 near the upper edge thereof, the supporting side wall 142 extends downward from the supporting top wall 141, a gap is formed between the supporting side wall 142 and the right side wall of the housing 10 corresponding thereto, the gap forms the flow guide groove 15, the supporting side wall 142 and the front side wall of the housing 10 corresponding thereto define the sound outlet channel 12, the flow guide groove 15 is communicated with both the front cavity 16 and the sound outlet channel 12, so that the front cavity 16 is communicated with the sound outlet channel 12 through the flow guide groove 15, and the airflow in the front cavity 16 can flow to the sound outlet channel 12 through the flow guide groove 15.

In this embodiment, a flow guide plate 18 is disposed between the supporting sidewall 142 and the housing 10, one side of the flow guide plate 18 is connected to the supporting sidewall 142, the other side of the flow guide plate 18 is connected to one side wall of the housing 10, the supporting sidewall 142 and the flow guide plate 18 define a flow guide groove 15, and the sound outlet channel 12 is communicated with one end of the flow guide groove 15. As shown in fig. 2 to 5, the baffle 18 is connected between the supporting sidewall 142 and the housing 10, specifically, the left side of the baffle 18 is connected to the supporting sidewall 142, and the right side of the baffle 18 is connected to the right sidewall of the housing 10, so that the baffle slot 15 is defined by the housing 10, the supporting sidewall 142 and the baffle 18, and the sound outlet channel 12 is communicated with the front end of the baffle slot 15. In the embodiment, the guide plate 18 is arranged, so that the guide function is achieved, the airflow in the installation cavity 11 is conveniently guided into the sound outlet channel 12, and the flow noise is reduced.

Further, the first end of the baffle 18 is far away from the sound outlet channel 12, the second end of the baffle 18 extends to the sound outlet channel 12, the front cavity 16 is located above the rear cavity, the supporting top wall 141 is arranged close to the upper edge of the housing 10, and the distance between the baffle 18 and the supporting top wall 141 in the direction from the first end to the second end is gradually increased. As shown in fig. 2 to 5, the first end of guide plate 18 is the rear end of guide plate 18, the second end of guide plate 18 is the front end of guide plate 18, guide plate 18 is the slope from back forward and sets up downwards, thereby make guide plate 18 and support the distance between roof 141 be the gradually-expanding setting, and then make the degree of depth of guiding gutter 15 from back forward enlarge gradually, it is smooth and easy that the air current flows in guiding gutter 15, change the distribution of vibration atmospheric pressure, improve speaker module 100's polarization.

In an embodiment, as shown in fig. 2 to 5, the upper surface of the flow guiding plate 18 is an inclined surface, and the inclined surface is disposed obliquely downward from the first end to the second end of the flow guiding plate 18, that is, the inclined surface is disposed obliquely downward from back to front, and the inclined surface may be a smooth plane, which further facilitates smooth air flow flowing in the flow guiding groove 15, changes the distribution of the vibrating air pressure, and improves the polarization of the speaker module 100.

In another embodiment, the upper surface of the baffle 18 is a curved surface, and the concave side of the curved surface is disposed upward. It can be understood that the upper surface of the guiding plate 18 can be an arc surface or a similar arc surface, and the concave side of the arc surface is disposed upward, so that the distance between the arc surface and the supporting top wall 141 is gradually increased from back to front, and further the depth of the guiding groove 15 is gradually increased from back to front. The cambered surface can be smooth cambered surface, further does benefit to the air current and flows smoothly in guiding gutter 15, changes the vibration atmospheric pressure distribution, improves speaker module 100's polarization.

The first end of the baffle 18 of this embodiment is flush with the upper edge of the support sidewall 142 and the second end of the baffle 18 is flush with the lower edge of the support sidewall 142. Specifically, the rear end of the air deflector 18 is flush with the upper edge of the supporting side wall 142, so that the smoothness of the air flow flowing from the installation cavity 11 to the guide groove 15 is improved, the front end of the air deflector 18 is flush with the lower edge of the supporting side wall 142, the smoothness of the air flow flowing from the guide groove 15 to the sound outlet channel 12 is improved, and the flow noise is further reduced.

The supporting sidewall 142 of the present embodiment includes a first sidewall 1421 and a second sidewall 1422 connected to each other, the first sidewall 1421 and the housing 10 define an acoustic channel 12 therebetween, the baffle 15 is formed between the second sidewall 1422 and a sidewall wall of the housing 10 opposite to the second sidewall 1422, and the first sidewall 1421 is inclined from top to bottom toward one side of the acoustic channel 12.

Specifically, as shown in fig. 1 to 5, the first side wall 1421 is disposed opposite to the front wall of the housing 10, and the first side wall 1421 and the front wall of the housing 10 enclose the acoustic channel 12 therebetween. The second side wall 1422 is disposed opposite to the right wall of the case 10, and the guide groove 15 is formed between the second side wall 1422 and the right wall of the case 10. In this embodiment, the supporting sidewall 142 is disposed to define the acoustic channel 12 and the guiding groove 15 together with the housing 10, and the structure is reasonable and simple, and is easy to manufacture. In addition, in order to reduce flow noise, the first side wall 1421 of the present embodiment is inclined from top to bottom toward the side of the sound outlet passage 12, specifically, the first side wall 1421 is inclined forward from top to bottom.

The sound outlet 13 is formed in a side wall of the housing 10 opposite to the first side wall 1421. As shown in fig. 1 to 4, the front wall of the housing 10 is disposed opposite to the first side wall 1421, the sound outlet 13 is opened on the front wall of the housing 10, and the sound outlet 13 is located in front of the diversion trench 15, so that the airflow flowing along the diversion plate 18 to the sound outlet channel 12 can be directly and smoothly discharged from the sound outlet 13 in front to the external space, and the flow noise is further reduced.

In one embodiment, as shown in fig. 2 to 4, the sound emitting channel 12 is disposed corresponding to the mounting cavity 11, and the sound emitting channel 12 overlaps the mounting cavity 11 when viewed from the front-back direction. The guiding gutter 15 communicates with the side area of the sound channel 12, specifically, the guiding gutter 15 communicates with the right side area of the sound channel 12, and the air flow in the guiding gutter 15 can flow into the sound channel 12 from the right side area of the sound channel 12, and then is transmitted to the external space through the sound hole 13 in front, which is simple in structure and easy to manufacture.

In another embodiment, as shown in fig. 6, the sound emitting channels 12 are offset from the mounting cavity 11, and the sound emitting channels 12 are not overlapped or partially overlapped with the mounting cavity 11 when viewed from the front-back direction. The diversion trench 15 is communicated with the middle area of the sound outlet channel 12, the air flow of the diversion trench 15 can flow into the sound outlet channel 12 from the middle area of the sound outlet channel 12, and then is transmitted to the external space through the sound outlet hole 13 positioned right in front of the diversion trench 15, the air flow flows smoothly, and the flow noise is reduced.

In the speaker module 100 of the present embodiment, the housing 10, the supporting wall 14, and the baffle 18 are integrally formed, which is not only easy to manufacture, but also omits the assembly steps among the housing 10, the supporting wall 14, and the baffle 18, and simplifies the production process. Moreover, no assembly gap exists among the integrally formed shell 10, the supporting wall 14 and the guide plate 18, so that the sealing performance of the product is improved, and the product performance is further improved.

In this embodiment, the upper end of the housing 10 is open, the speaker module 100 further includes a cover plate 30 covering the open, the inner wall of the housing 10 is further provided with a mounting flange 17, the mounting flange 17 and the supporting wall 14 are both annularly disposed, the mounting flange 17 is connected above the supporting top wall 141, a mounting space 19 is formed between the mounting flange 17 and the upper edge of the housing 10, the cover plate 30 is accommodated in the mounting space 19, and the edge of the cover plate 30 is supported by the mounting flange 17 and abutted to the inner wall of the housing 10.

Specifically, as shown in fig. 2 to 5, the mounting flange 17 is annularly provided on the inner wall of the housing 10, and forms a mounting space 19 with the upper edge of the housing 10. When the cover 30 is assembled with the housing 10, the cover 30 may be placed in the installation space 19, the edge of the cover 30 placed in the installation space 19 may be supported above the installation flange 17, and the edge of the cover 30 abuts against the inner wall of the housing 10, thereby fixing the cover 30 in the housing 10. After the cover plate 30 is fixed on the housing 10, the upper surface of the cover plate 30 is flush with the upper surface of the housing 10, the structure is compact, and excessive space is not occupied.

In one embodiment, the mounting flange 17 is opened with a pressure equalizing hole 101 communicating the front cavity 16 and the rear cavity to balance the pressure of the air flow between the front cavity 16 and the rear cavity, thereby improving the acoustic performance of the speaker module 100. The sound outlet hole 13 and the pressure equalizing hole 101 of this embodiment are all provided with dustproof screen cloth, have dirt-proof effect.

The speaker unit 20 of this embodiment includes a vibration system and a magnetic circuit system, the vibration system includes a diaphragm 21 and a voice coil 22 for driving the diaphragm 21 to vibrate, the diaphragm 21 is connected with the housing 10, the magnetic circuit system includes a central magnet 23 and a side magnet 24 distributed outside the central magnet 23, a magnetic gap 25 is formed between the central magnet 23 and the side magnet 24, and the voice coil 22 is suspended in the magnetic gap 25.

When the speaker module 100 of this embodiment is in use, the magnetic gap 25 of the magnetic circuit system generates a magnetic field, and the voice coil 22 performs reciprocating magnetic line-cutting motion in the magnetic gap 25 to drive the diaphragm 21 to vibrate, so as to drive the air to sound, thereby completing energy conversion between electric sounds. In order to correct the magnetic force generated by the center magnet 23 and the side magnets 24, the magnetic circuit system of the present embodiment further includes a center washer 27 disposed on the center magnet 23 and a side washer 28 disposed on the side magnets 24. The vibration system of the speaker unit 20 of the present embodiment further includes a reinforcing portion 26, and the reinforcing portion 26 is disposed above the diaphragm 21 to adjust the acoustic performance of the speaker unit 20.

The utility model also provides an electronic equipment, electronic equipment includes foretell speaker module 100. It can be understood that the electronic device can be a mobile phone, a tablet, a smart watch, a bracelet and other electronic products. Since the electronic device adopts all technical solutions of all the embodiments, at least all the beneficial effects brought by the technical solutions of the embodiments are achieved, and no further description is given here.

The above is only the preferred embodiment of the present invention, not so limiting the patent scope of the present invention, all of which are in the utility model discloses a conceive, utilize the equivalent structure transform that the content of the specification and the attached drawings did, or directly/indirectly use all to include in other relevant technical fields the patent protection scope of the present invention.

Claims

1. A speaker module, characterized in that the speaker module comprises:

2. The speaker module as claimed in claim 1, wherein the support wall includes a support top wall disposed on the inner wall of the housing and a support side wall extending from the support top wall to a side remote from the front cavity; the housing and the supporting side wall enclose the sound outlet channel, and the flow guide groove is formed between the supporting side wall and one side wall of the housing.

3. The speaker module as set forth in claim 2 wherein a baffle is disposed between said supporting sidewall and said enclosure, one side of said baffle being connected to said supporting sidewall and the other side of said baffle being connected to one side wall of said enclosure, said supporting sidewall and said baffle defining said baffle slot, said sound outlet passage communicating with one end of said baffle slot.

4. A loudspeaker module as claimed in claim 3, wherein said baffle has a first end remote from said sound-emitting passage and a second end extending to said sound-emitting passage, said front chamber is located above said rear chamber, said support top wall is located adjacent to said upper edge of said enclosure, and said baffle is located at a diverging distance from said support top wall in a direction from said first end to said second end.

5. The speaker module as recited in claim 4,

the upper surface of the guide plate is an inclined plane, and the inclined plane is arranged in a direction from the first end to the second end of the guide plate in an inclined and downward manner;

or,

6. The speaker module of claim 4, wherein the first end of the baffle is flush with the upper edge of the support sidewall and the second end of the baffle is flush with the lower edge of the support sidewall.

7. The speaker module as claimed in claim 4, wherein the supporting sidewall comprises a first sidewall and a second sidewall connected to each other, the first sidewall and the housing enclosing the sound-emitting passage therebetween, the guide groove being formed between the second sidewall and a sidewall wall of the housing disposed opposite to the second sidewall, the first sidewall being inclined toward one side of the sound-emitting passage from top to bottom.

8. The speaker module as claimed in claim 7, wherein the sound outlet is formed in a side wall of the housing disposed opposite the first side wall.

9. The speaker module as claimed in claim 8, wherein the sound-emitting channel is disposed corresponding to the mounting cavity, and the guiding groove is communicated with a side region of the sound-emitting channel.

10. The speaker module as claimed in claim 8, wherein the sound-emitting channel is offset from the mounting cavity, and the channel is in communication with a middle region of the sound-emitting channel.

11. A loudspeaker module according to any one of claims 3 to 10 wherein the enclosure, the support wall and the baffle are integrally formed.

12. The speaker module as claimed in any one of claims 2-10, wherein the top of the housing is open, the speaker module further comprises a cover plate covering the open, the inner wall of the housing is further provided with a mounting flange, the mounting flange and the top support wall are both arranged in a ring shape, the mounting flange is connected above the top support wall, a mounting space is formed between the mounting flange and the top edge of the housing, the cover plate is accommodated in the mounting space, and the edge of the cover plate is supported by the mounting flange and abuts against the inner wall of the housing.

13. The speaker module as claimed in any one of claims 1-10, wherein the speaker assembly comprises a vibration system and a magnetic circuit system, the vibration system comprises a diaphragm and a voice coil for driving the diaphragm to vibrate, the diaphragm is connected to the housing, the magnetic circuit system comprises a central magnet and side magnets distributed outside the central magnet, a magnetic gap is formed between the central magnet and the side magnets, and the voice coil is suspended in the magnetic gap.

14. An electronic device, characterized in that the electronic device comprises a loudspeaker module according to any one of claims 1-13.