CN116193331A - Sounding module and electronic equipment - Google Patents

Abstract

The disclosure relates to a sounding module and an electronic device. The sound production module includes: the shell comprises a containing cavity, a first opening and a sound outlet hole, wherein the first opening and the sound outlet hole are respectively communicated with the containing cavity; the moving coil sounding unit is arranged in the accommodating cavity, the accommodating cavity is divided into a front cavity and a rear cavity by the moving coil sounding unit, the first opening is communicated with the rear cavity, and the sound outlet is communicated with the front cavity; the film sounding unit is connected with the shell corresponding to the first opening, and in the thickness direction of the film sounding unit, the orthographic projection of the film sounding unit coincides with the orthographic projection of the first opening, or the orthographic projection of the first opening is located in the orthographic projection of the film sounding unit.

Description

Sounding module and electronic equipment

Technical Field

The disclosure relates to the technical field of terminals, and in particular relates to a sounding module and electronic equipment.

Background

Currently, terminal devices on the market are generally configured with an earpiece module or a speaker module, so as to implement a sound emitting function of the terminal device through the earpiece module and the speaker module. In the related art, taking a speaker module as an example, it is common to include a single sound generating unit, and sound generation is achieved by vibration of a diaphragm of the single sound generating unit.

Disclosure of Invention

The present disclosure provides a sounding module and an electronic device to solve the deficiencies in the related art.

According to a first aspect of embodiments of the present disclosure, there is provided a sound emitting module, including:

the first shell comprises a containing cavity, a first opening and a sound outlet, wherein the first opening and the sound outlet are respectively communicated with the containing cavity;

the moving coil sounding unit is arranged in the accommodating cavity, the accommodating cavity is divided into a front cavity and a rear cavity by the moving coil sounding unit, the first opening is communicated with the rear cavity, and the sound outlet is communicated with the front cavity;

the film sounding unit is connected with the first shell corresponding to the first opening, and in the thickness direction of the film sounding unit, the orthographic projection of the film sounding unit coincides with the orthographic projection of the first opening, or the orthographic projection of the first opening is located in the orthographic projection of the film sounding unit.

Optionally, the peripheral edge of the film sound generating unit is connected with the inner wall of the first opening.

Optionally, the sound outlet and the first opening are located at two adjacent sides of the first housing.

Optionally, the portable electronic device further comprises a support, wherein the support is connected with the inner wall of the accommodating cavity, and the moving coil sounding unit is fixed on the support.

Optionally, the sounding module includes a plurality of brackets, each bracket extends from an inner wall of the accommodating cavity towards a middle part of the accommodating cavity, and the accommodating cavity is separated into a first cavity and a second cavity by the cooperation of the plurality of brackets;

the moving coil sounding unit is connected to the communication part of the first cavity and the second cavity, the second cavity forms the rear cavity, and the moving coil sounding unit is located in the first cavity and surrounds the front cavity with the support.

Optionally, the film sounding unit includes a piezoelectric sounding film, an anode conductive layer and a cathode conductive layer, and any piezoelectric sounding film is located between the adjacent anode conductive layer and cathode conductive layer.

Optionally, the film sounding unit includes a plurality of piezoelectric sounding films, and adjacent piezoelectric sounding films share a single layer of the positive electrode conductive layer or the negative electrode conductive layer; or each piezoelectric sounding film corresponds to a group of adjacently arranged positive electrode conducting layers and negative electrode conducting layers.

Optionally, the moving coil sounding unit includes an earpiece unit or a speaker unit.

According to a second aspect of embodiments of the present disclosure, there is provided an electronic device including one or more sound emitting modules according to any one of the embodiments described above.

Optionally, the electronic device includes a second housing and a battery cover assembled with the second housing, and the sound generating module is disposed in a space enclosed by the battery cover and the second housing;

the second shell comprises a second opening, the sound outlet faces the second opening, and the depth direction of the first opening is the same as the thickness direction of the battery cover.

The technical scheme provided by the embodiment of the disclosure can comprise the following beneficial effects:

according to the embodiment, the sound generating module can be provided with at least two sound generating units, namely the moving coil sound generating unit and the film sound generating unit, and vibration sound generation can be realized through the moving coil sound generating unit and the film sound generating unit, so that the limit volume of the sound generating module is improved; moreover, when the film sounding unit vibrates in the direction away from the rear cavity, the volume of the rear cavity can be increased, the low-frequency loudness of the moving coil sounding unit is improved, and the overall high-frequency sound effect of the sounding module is improved by utilizing the good high-frequency effect of the film sounding unit.

It is to be understood that both the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the disclosure.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the disclosure and together with the description, serve to explain the principles of the disclosure.

Fig. 1 is a schematic diagram illustrating a structure of a sound emitting module according to an exemplary embodiment.

Fig. 2 is a schematic diagram illustrating a structure of another sounding module according to an exemplary embodiment.

Fig. 3 is a schematic cross-sectional view of a membrane sound unit according to an exemplary embodiment.

Fig. 4 is a schematic cross-sectional view of another membrane sound unit shown according to an exemplary embodiment.

Fig. 5 is a schematic cross-sectional view of an electronic device, according to an example embodiment.

Fig. 6 is a schematic diagram of an electronic device according to an exemplary embodiment.

Detailed Description

Reference will now be made in detail to exemplary embodiments, examples of which are illustrated in the accompanying drawings. When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present disclosure. Rather, they are merely examples of apparatus and methods consistent with some aspects of the present disclosure as detailed in the accompanying claims.

The terminology used in the present disclosure is for the purpose of describing particular embodiments only and is not intended to be limiting of the disclosure. As used in this disclosure and the appended claims, the singular forms "a," "an," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and/or" as used herein refers to and encompasses any or all possible combinations of one or more of the associated listed items.

It should be understood that although the terms first, second, third, etc. may be used in this disclosure to describe various information, these information should not be limited to these terms. These terms are only used to distinguish one type of information from another. For example, first information may also be referred to as second information, and similarly, second information may also be referred to as first information, without departing from the scope of the present disclosure. The word "if" as used herein may be interpreted as "at … …" or "at … …" or "responsive to a determination", depending on the context.

Fig. 1 is a schematic diagram illustrating a sound module 100 according to an exemplary embodiment. As shown in fig. 1, the sound generating module 100 may include a first housing 1, a moving coil sound generating unit 2 and a film sound generating unit 3, the first housing 1 may include a receiving cavity 11, a first opening 12 and a sound outlet 13, the first opening 12 and the sound outlet 13 may be respectively communicated with the receiving cavity 11, the moving coil sound generating unit 2 may be disposed in the receiving cavity 11, and the receiving cavity 11 may be divided into a front cavity 111 and a rear cavity 112 by the moving coil sound generating unit 2, the rear cavity 112 is communicated with the first opening 12, the front cavity 111 is communicated with the sound outlet 13, the sound outlet direction of the moving coil sound generating unit 2 may be disposed toward the sound outlet 13, and sound generated by the moving coil sound generating unit 2 may be transmitted through the sound outlet 13. The moving coil sound generating unit 2 may include a speaker unit or an earpiece unit, which is not limited by the present disclosure.

The film sounding unit 3 may be disposed corresponding to the first opening 12 and the film sounding unit 3 may be fixedly connected with the first housing 1. In the thickness direction of the film sound generating unit 3, the front projection of the film sound generating unit 3 may coincide with the front projection of the first opening 12, or the front projection of the first opening 12 may be located within the front projection of the film sound generating unit 3. Based on this, the sound generating module 100 can be configured with at least two sound generating units of the moving-coil sound generating unit 2 and the film sound generating unit 3, and vibration sound generation can be realized through both the moving-coil sound generating unit 2 and the film sound generating unit 3, which is beneficial to improving the limit volume of the sound generating module 100; moreover, when the film sounding unit 3 vibrates in a direction away from the rear cavity 112, the volume of the rear cavity 112 can be increased, which is beneficial to improving the low-frequency loudness of the moving coil sounding unit 2, and the overall high-frequency sound effect of the sounding module 100 is improved by utilizing the good high-frequency effect of the film sounding unit 3.

Wherein, the arrangement of the film sounding unit 3 corresponding to the first opening 12 may include that the peripheral edge of the film sounding unit 3 is connected to the inner wall of the first opening 12 as shown in fig. 1, at this time, the portion of the accommodating cavity 11 except the front cavity 111 may be used as a rear cavity, and the sound emitted by the vibration of the film sounding unit 3 may be directly transmitted through the gap between the sounding module 100 and the terminal device configured with the sounding module 100, so as to avoid the first housing 1 blocking the sound; in other embodiments, the film sounding unit 3 may be connected to an inner wall of the accommodating cavity 11, and the film sounding unit 3 covers the first opening 12, and at this time, the rear cavity 112 may be enclosed by the film sounding unit 3 and a shell wall of the first housing 1, and a portion of the accommodating cavity 11 except the front cavity 111 may be used as the rear cavity, which may be specifically designed as required, which is not limited in this disclosure.

For the current electronic device, it is common to provide the sound-transmitting opening on the side of the housing, as shown in fig. 2, the first opening 12 and the sound outlet 13 of the sound generating module 100 may be located on two adjacent sides of the first housing 1 in the present disclosure. For example, in the embodiment shown in fig. 2, the first housing 1 may be substantially square, the sound outlet 13 may be provided on a side frame of the first housing 1, and the first opening 12 may be provided on a top plate of the first housing 1. Based on this, when the electronic device is configured with the sounding module 100, the sounding hole 13 may be disposed towards the side of the electronic device, the depth direction of the first opening 12 is the same as the thickness direction of the electronic device, and the sound emitted by the film sounding unit 3 may be propagated through the assembly gap existing inside the electronic device, so that the sounding module 100 provided in the present disclosure does not need to be adapted to the electronic device, and the electronic device is additionally provided with an opening for propagating the sound, so as to reduce design modification on the electronic device.

In the above embodiments, still as shown in fig. 2, the sounding module 100 may further include a bracket 4, where the bracket 4 may be connected to the inner wall of the accommodating cavity 11, and the moving coil sounding unit 2 may be fixed by using the bracket 4, so that the position of the bracket 4 may be flexibly set, and the setting position and the sounding direction of the moving coil sounding unit 2 may be reasonably adjusted, thereby improving the design flexibility of the sounding module 100. Specifically, taking the embodiment shown in fig. 2 as an example, the sounding module 100 may include two brackets 4, each bracket 4 may extend beyond the middle of the accommodating cavity 11, and the accommodating cavity 11 may be separated into a first cavity and a second cavity that are communicated with each other by matching of the two brackets 4, the moving coil sounding unit 2 may be connected to a communication place of the first cavity and the second cavity, and the first cavity and the second cavity may be separated by the moving coil sounding unit 2, the second cavity forms a rear cavity 112 of the sounding module 100, the moving coil sounding unit 2 may be disposed in the first cavity, and the two brackets 4 and the moving coil sounding unit 2 may be matched to enclose a front cavity 111. It should be noted that, only two brackets 4 are illustrated in the embodiment shown in fig. 2, and in other embodiments, the sound generating module 100 may include three or more brackets 4, which is not limited in this disclosure.

In the above embodiments, as shown in fig. 3, the film sounding unit 3 may include a piezoelectric sounding film, an anode conductive layer and a cathode conductive layer, where any piezoelectric sounding film is located between the adjacent anode conductive layer and cathode conductive layer, and the voltage is applied to the piezoelectric sounding film through the anode conductive layer and the cathode conductive layer, so that the piezoelectric sounding film is deformed and vibrated, thereby realizing sounding. As shown in fig. 3, each piezoelectric sounding film corresponds to a group of adjacently arranged positive electrode conductive layers and negative electrode conductive layers, that is, each piezoelectric sounding film is arranged between different positive electrode conductive layers and negative electrode conductive layers. For example, as shown in fig. 3, the film sounding unit 3 includes a first piezoelectric sounding film 31, a second piezoelectric sounding film 32, a first positive electrode conductive layer 33, a second positive electrode conductive layer 34, a first negative electrode conductive layer 35 and a second negative electrode conductive layer 36, the first piezoelectric sounding film 31 is connected with the first positive electrode conductive layer 33 and the first negative electrode conductive layer 35 respectively, the second piezoelectric sounding film 32 is connected with the second positive electrode conductive layer 34 and the second negative electrode conductive layer 36 respectively, and of course, in order to avoid short circuit, an insulating layer 37 may be disposed between the first negative electrode conductive layer 35 and the second positive electrode conductive layer 34, and the first negative electrode conductive layer 35 and the second positive electrode conductive layer 34 may be bonded while achieving the purpose of insulation through the insulating layer 37, thereby obtaining the firm film sounding unit 3.

In another embodiment, as shown in fig. 4, adjacent piezoelectric sounding films may also share a single positive conductive layer. Still with this film sound generating unit 3 including first piezoelectricity sound generating film 31, second piezoelectricity sound generating film 32, first anodal conducting layer 33, first negative pole conducting layer 35 and second negative pole conducting layer 36, first piezoelectricity sound generating film 31 is connected respectively with first anodal conducting layer 33 and first negative pole conducting layer 35, and second piezoelectricity sound generating film 32 is connected respectively with first anodal conducting layer 33 and second negative pole conducting layer 36, and first piezoelectricity sound generating film 31 and second piezoelectricity sound generating film 32 share first anodal conducting layer 33 to this is favorable to the frivolity of film sound generating unit 3. Of course, the adjacent piezoelectric sounding films may share the positive electrode conductive layer, and in other embodiments, the adjacent piezoelectric sounding films may share the negative electrode conductive layer, which is not limited in this disclosure.

In the above embodiment, only the case where the film sounding unit 3 includes two layers of the first piezoelectric sounding film 31 and the second piezoelectric sounding film 32 is described as an example, but in other embodiments, the film sounding unit 3 may include a single layer of piezoelectric sounding film; or include three-layer and more than three-layer piezoelectricity sound production film, can include each piezoelectricity sound production film in the same film sound production unit 3 can correspond a set of different anodal conducting layer and negative pole conducting layer, adjacent piezoelectricity sound production film sharing same anodal conducting layer, adjacent piezoelectricity sound production film sharing same negative pole conducting layer in arbitrary or multiple schemes, this disclosure does not limit this.

Based on the technical solutions of the present disclosure, as shown in fig. 5 and fig. 6, the present disclosure further provides an electronic device 200, where the electronic device 200 may include the sounding module 100 described in any one of the foregoing embodiments, specifically, the electronic device 200 may include one or more sounding modules 100, and when the electronic device 200 includes a plurality of sounding modules 100, the plurality of sounding modules 100 may be disposed at intervals, for example, each sounding module 100 may include one side edge of the electronic device 200, which is not limited by the present disclosure. The electronic device 200 may include a cell phone terminal, a tablet terminal, a wearable device, and the like.

Specifically, the electronic device 200 may include a second housing 201 and a battery cover 202 assembled with the second housing 201, the sound generating module 100 may be disposed in a space enclosed by the battery cover 202 and the second housing 201, the second housing 201 may include a second opening 2011, a sound outlet of the sound generating module 100 may be disposed toward the second opening 2011, and a depth direction of the first opening 12 may be the same as a thickness direction of the battery cover 202, so that sound generated by vibration of the film sound generating unit 3 may be transmitted through gaps between the battery cover 202 and the second housing 201 and between the battery cover 202 and electronic components assembled in the second housing 201, so as to realize sound generation of the electronic device 200.

Other embodiments of the disclosure will be apparent to those skilled in the art from consideration of the specification and practice of the disclosure disclosed herein. This disclosure is intended to cover any adaptations, uses, or adaptations of the disclosure following the general principles of the disclosure and including such departures from the present disclosure as come within known or customary practice within the art to which the disclosure pertains. It is intended that the specification and examples be considered as exemplary only, with a true scope and spirit of the disclosure being indicated by the following claims.

It is to be understood that the present disclosure is not limited to the precise arrangements and instrumentalities shown in the drawings, and that various modifications and changes may be effected without departing from the scope thereof. The scope of the present disclosure is limited only by the appended claims.

Claims (10)

1. A sound module, comprising:

the first shell comprises a containing cavity, a first opening and a sound outlet, wherein the first opening and the sound outlet are respectively communicated with the containing cavity;

the moving coil sounding unit is arranged in the accommodating cavity, the accommodating cavity is divided into a front cavity and a rear cavity by the moving coil sounding unit, the first opening is communicated with the rear cavity, and the sound outlet is communicated with the front cavity;

the film sounding unit is connected with the first shell corresponding to the first opening, and in the thickness direction of the film sounding unit, the orthographic projection of the film sounding unit coincides with the orthographic projection of the first opening, or the orthographic projection of the first opening is located in the orthographic projection of the film sounding unit.

2. The sound emitting module of claim 1, wherein the peripheral edge of the film sound emitting unit is connected to the inner wall of the first opening.

3. The sound module of claim 1 wherein the sound outlet and the first opening are located on adjacent sides of the first housing.

4. The sound generating module of claim 1, further comprising a bracket connected to an inner wall of the housing cavity, the moving coil sound generating unit being fixed to the bracket.

5. The sound module of claim 4, wherein the sound module comprises a plurality of brackets, each bracket extending from an inner wall of the receiving cavity toward a middle of the receiving cavity, the plurality of brackets cooperatively dividing the receiving cavity into a first cavity and a second cavity;

the moving coil sounding unit is connected to the communication part of the first cavity and the second cavity, the second cavity forms the rear cavity, and the moving coil sounding unit is located in the first cavity and surrounds the front cavity with the support.

6. The sound generating module of claim 1, wherein the membrane sound generating unit comprises a piezoelectric sound generating membrane, a positive conductive layer and a negative conductive layer, and any piezoelectric sound generating membrane is located between adjacent positive conductive layer and negative conductive layer.

7. The sound generating module of claim 6, wherein the film sound generating unit comprises a plurality of layers of piezoelectric sound generating films, and adjacent piezoelectric sound generating films share a single layer of the positive electrode conductive layer or the negative electrode conductive layer; or each piezoelectric sounding film corresponds to a group of adjacently arranged positive electrode conducting layers and negative electrode conducting layers.

8. The sound emitting module of claim 1, wherein the moving coil sound emitting unit comprises an earpiece unit or a speaker unit.

9. An electronic device comprising one or more sound emitting modules according to any one of claims 1-8.

10. The electronic device of claim 9, wherein the electronic device comprises a second housing and a battery cover assembled with the second housing, and the sound generating module is disposed in a space enclosed by the battery cover and the second housing;

the second shell comprises a second opening, the sound outlet faces the second opening, and the depth direction of the first opening is the same as the thickness direction of the battery cover.

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