CN216057396U - Loudspeaker box, sound production assembly and electronic equipment - Google Patents

Abstract

The utility model provides a speaker box, sound production subassembly and electronic equipment relates to the sound production subassembly field. The loudspeaker box comprises a first cover plate, a loudspeaker inner core and a second cover plate, wherein the first cover plate and the second cover plate are oppositely arranged, a first opening is formed in the first cover plate, the loudspeaker inner core is installed between the first cover plate and the second cover plate, and a sound film of the loudspeaker inner core is opposite to the first opening. Be provided with first opening on the first apron of this speaker box, make the vibration space of speaker box open, broken through the restriction of first apron to the thickness of vibration space, made the sound membrane in the speaker box vibration of formation by a wide margin in space to make the speaker box have better audio performance.

Description

Loudspeaker box, sound production assembly and electronic equipment

Technical Field

The present disclosure relates to the field of sound generating assemblies, and in particular, to a speaker box, a sound generating assembly, and an electronic device.

Background

With the continuous evolution of mobile phones, the thickness of mobile phones is continuously reduced, for example, the thickness of current smart phones is greatly reduced compared with the thickness of the previous mobile phones.

The thinner the thickness of the cellular phone, the more tense the internal space and the smaller the space for arranging the devices. For example, a speaker box, needs to be thinner due to a small space. The volume and quality of sound of a speaker are affected by the magnitude of the vibration amplitude of the diaphragm in the speaker box, and the vibration amplitude of the diaphragm is affected by the magnitude of the vibration space.

In the related art, a space between the first cover plate of the speaker and the sound film in the speaker box is a vibration space of the sound film, and the vibration space needs to be small in order to pursue a thinner speaker, but this may reduce the audio performance of the mobile phone.

SUMMERY OF THE UTILITY MODEL

In view of this, the present disclosure provides a speaker box, a sound generating assembly and an electronic device, where the speaker box has a larger diaphragm vibration space, which is beneficial to improving audio performance.

Specifically, the method comprises the following technical scheme:

in a first aspect, a loudspeaker enclosure is provided, the loudspeaker enclosure comprising a first cover plate, a loudspeaker core and a second cover plate, the first cover plate and the second cover plate being arranged in opposition, the first opening being located in the first cover plate, the loudspeaker core being mounted between the first cover plate and the second cover plate, and a sound membrane of the loudspeaker core being opposed to the first opening.

Optionally, an orthographic projection of the sound membrane on the first cover plate is located in the first opening.

In a second aspect, there is provided a sound emitting assembly comprising a seal, a middle frame and the loudspeaker enclosure of the first aspect;

the loudspeaker box is positioned in the middle frame, the first cover plate is close to the supporting part of the middle frame, and the first opening is opposite to the second opening of the supporting part of the middle frame;

the sealing piece is positioned outside the middle frame and opposite to the second opening, and a vibration space of the loudspeaker box is formed between the loudspeaker box and the sealing piece.

Optionally, the speaker box is located outside the second opening of the support portion, the speaker box is connected to the support portion in a sealing manner, the support portion is connected to the sealing member in a sealing manner, and the speaker box, the support portion and the sealing member enclose the vibration space.

Optionally, the sound generating assembly further comprises a sealing gasket located between the support portion and the speaker box and between the support portion and the sealing member.

Optionally, the speaker box is partially located in the second opening of the support portion, and the sealing member is connected to the speaker box in a sealing manner, and the sealing member and the speaker box enclose the vibration space.

Optionally, the sound generating assembly further comprises a gasket located between the speaker box and the seal.

Optionally, the gasket is foam.

Optionally, the seal is a display screen, a back surface of the display screen being opposite the speaker box.

Optionally, the seal is a battery cover.

In a third aspect, an electronic device is provided, which includes the sound emitting assembly of the second aspect.

The technical scheme provided by the embodiment of the disclosure has the beneficial effects that:

in the loudspeaker box that this disclosed embodiment provided, be provided with first opening on the first apron of loudspeaker box, make the vibration space of loudspeaker box open, broken through the restriction of first apron to the thickness of vibration space, make the sound membrane in the loudspeaker box have the space to form vibration by a larger margin to make the loudspeaker box have better audio performance.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure, the drawings needed to be used in the description of the embodiments are briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present disclosure, and it is obvious for those skilled in the art to obtain other drawings based on the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a speaker box according to an embodiment of the present disclosure;

fig. 2 is an exploded schematic view of a sound emitting assembly according to an embodiment of the present disclosure;

FIG. 3 is an assembly view of the sound emitting assembly of FIG. 2;

fig. 4 is a schematic structural diagram of another sounding component provided in the embodiment of the present disclosure.

The reference numerals in the drawings denote:

1-a seal;

2-middle frame;

21-a second sound transmission channel;

22-a support;

221-a second opening;

23-a frame-like portion;

3-a first cover plate;

31-a vibration space;

32-a first opening;

33-a first sound transmission channel;

4-a speaker core;

41-sound membrane;

5-a second cover plate;

6-a sealing gasket;

7-loudspeaker enclosure.

With the foregoing drawings in mind, certain embodiments of the disclosure have been shown and described in more detail below. These drawings and written description are not intended to limit the scope of the disclosed concepts in any way, but rather to illustrate the concepts of the disclosure to those skilled in the art by reference to specific embodiments.

Detailed Description

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

Reference to orientation terms in the embodiments of the present disclosure, such as "upper," "lower," "side," and the like, are generally based on the relative relationship of the orientations shown in fig. 2, and these orientation terms are used merely for clarity of description of the structures and the relationship between the structures, and are not used for describing absolute orientations. When the product is placed in different postures, the orientation may be changed, for example, "up" and "down" may be interchanged.

Fig. 1 is a schematic structural diagram of a speaker box according to an embodiment of the present disclosure. As shown in fig. 1, the speaker box 7 includes a first cover plate 3, a speaker core 4, and a second cover plate 5, the first cover plate 3 and the second cover plate 5 being arranged oppositely, a first opening 32 being located in the first cover plate 3, the speaker core 4 being installed between the first cover plate 3 and the second cover plate 5, and a sound membrane 41 of the speaker core 4 being opposed to the first opening 32.

In the speaker box 7 provided by the embodiment of the present disclosure, the first opening 32 is disposed on the first cover plate 3 of the speaker box 7, so that the vibration space 31 of the speaker box 7 is opened, the limitation of the first cover plate 3 on the thickness of the vibration space 31 is broken through, and the sound film 41 in the speaker box 7 has a space to form vibration of a larger amplitude, so that the speaker box 7 has better audio performance.

In order to make the technical solutions and advantages of the present disclosure clearer, the following will describe embodiments of the present disclosure in further detail with reference to the accompanying drawings.

As shown in fig. 1, the speaker box 7 is a cabinet. The speaker core 4 is mounted between the first cover plate 3 and the second cover plate 5. The speaker core 4 comprises a sound membrane 41, the sound membrane 41 is located on a side of the speaker core 4 close to the first cover plate 3, and a projection of the sound membrane 41 on the first cover plate 3 is located within the first opening 32.

Fig. 2 is an exploded schematic view of a sound generating assembly provided in the embodiment of the present disclosure, and as shown in fig. 2, the sound generating assembly includes a sealing member 1, a middle frame 2, and a speaker box 7. The middle frame 2 may be a middle frame of an electronic device. The embodiment of the present disclosure takes a middle frame of a mobile phone as an example for explanation.

Fig. 3 is an assembly view of the sound emitting assembly of fig. 2. In order to facilitate the display of the internal structure of the sound emitting assembly, a portion of the sound emitting assembly is cut out in fig. 3. As shown in fig. 3, the speaker box 7 is located in the center frame 2, and the first cover 3 is close to the support portion 22 of the center frame 2, and the first opening 32 is opposite to the second opening 221 of the support portion 22 of the center frame 2. The sealing member 1 is located outside the middle frame 2, opposite to the second opening 221. A vibration space 31 of the speaker box 7 is formed between the speaker box 7 and the packing 1.

In the sound generating component, the loudspeaker box 7 is provided with the first opening 32, the vibration space 31 is positioned between the loudspeaker box 7 and the sealing member 1, the vibration space 31 is not limited in the loudspeaker box 7, the limitation of the size of the loudspeaker box 7 on the vibration space 31 is broken through, the vibration space 31 is enlarged, the sound membrane 41 in the loudspeaker box 7 has space to form vibration with larger amplitude, and therefore the sound generating component has better audio performance.

Especially for the folding screen mobile phone, the thickness is smaller, the vibration space of the speaker box which can be arranged in the related art is smaller, in the embodiment of the disclosure, the speaker box 7 with the first opening 32 is arranged, and the vibration space 31 is formed by the space between the speaker box 7 and the sealing member 1, so that the vibration space 31 is obviously increased, and the audio performance of the folding screen mobile phone is obviously improved.

Referring to fig. 3, a first sound transmission channel 33 is formed between the first cover plate 3 and the second cover plate 5, and one end of the first sound transmission channel 33 extends into the speaker box 7 and is located on one side of the sound film 41 close to the first opening 32. The other end of the first sound-conducting channel 33 is located on the outer side wall of the loudspeaker enclosure 7.

Referring to fig. 3, the sound generating assembly comprises a sealing member 1, a middle frame 2 and a speaker box 7, and a first opening 32 is provided on the lower surface of the speaker box 7, i.e. the side of the speaker box 7 adjacent to the sealing member 1. The middle frame 2 includes a support portion 22 and a frame-shaped portion 23, the support portion 22 is plate-shaped, and the frame-shaped portion 23 surrounds the support portion 22. The supporting portion 22 has a second opening 221, and the first opening 32 is opposite to the second opening 211. The speaker box 7 is put into the center frame 2 from one side of the support portion 22. The seal 1 is plate-shaped and the seal 1 is mounted on the side of the support 22 remote from the loudspeaker enclosure 7. The sealing member 1 covers the first opening 32 to form a vibration space 31 between the sealing member 1 and the speaker box 7.

As shown in fig. 3, the frame-like portion 23 has the second sound transmission channel 21. The side wall of the speaker box 7 having the first sound transmission path 33 is attached to the frame-like portion 23. One end of the second sound-transmitting channel 21 is opposite to the end of the first sound-transmitting channel 33, so that the second sound-transmitting channel 21 communicates with the first sound-transmitting channel 33. When the diaphragm 41 vibrates to generate sound, the sound enters the second sound transmission channel 21 through the first sound transmission channel 33 and then propagates along the second sound transmission channel 21 to the outside of the center frame 2.

In some embodiments of the present disclosure, as shown in fig. 3, the speaker box 7 is located outside the second opening 221 of the support portion 22. The speaker box 7 is located outside the second opening 221 of the support portion 22. The speaker box 7 is hermetically connected to the support portion 22, the support portion 22 is hermetically connected to the sealing member 1, and the speaker box 7, the support portion 22, and the sealing member 1 enclose a vibration space 31.

In the embodiment of the present disclosure, the support portion 22 separates the speaker box 7 from the sealing member 1, and the support portion 22 is hermetically connected to the speaker box 7 and the sealing member 1, respectively, so that the speaker box 7, the support portion 22, and the sealing member 1 jointly enclose the vibration space 31. Compared with the sound generating assembly in the prior art, in the sound generating assembly shown in fig. 3, the vibration space 31 at least increases the space corresponding to the second opening 221 on the supporting portion 22 and the first opening 32 on the first cover plate 3, so that the vibration space 31 has a larger volume.

In this example, taking fig. 3 as an example, the first cover 3 is located at the lower part of the speaker box 7, the lower surface of the first cover 3 is connected with the upper surface of the support part 22 in a sealing manner, and the projection of the first opening 32 on the seal member 1 is located within the projection of the second opening 221 of the support part 22 on the seal member 1. The vibration space 31 is formed between the diaphragm 41 of the speaker core 4 and the sealing member 1, and the vibration space 31 includes not only the space inside the speaker box 7 but also the spaces corresponding to the first opening 32 and the second opening 221.

As shown in fig. 3, the sound emitting assembly may further include gaskets 6, the gaskets 6 being located between the support portion 22 and the speaker box 7 and between the support portion 22 and the sealing member 1. The gasket 6 is used to seal the gap between the support portion 22 and the speaker box 7 and the gap between the support portion 22 and the sealing member 1. The sealing gasket 6 has certain thickness, and the distance between the loudspeaker box 7 and the sealing element 1 can be increased by arranging the sealing gasket 6, so that the vibration space 31 is increased, and the sound production assembly has better audio performance.

In this embodiment, see fig. 3, the number of gaskets 6 may be two, wherein one gasket 6 is distributed between the sealing member 1 and the support portion 22, and the gasket 6 is arranged around the second opening 221. The upper surface of the gasket 6 is connected to the support 22 and the lower surface is connected to the sealing member 1. A further gasket 6 is arranged between the loudspeaker enclosure 7 and the support 22, and the gasket 6 is arranged around the first opening 32, the upper surface of the gasket 6 being connected to the first cover plate 3 of the loudspeaker enclosure 7 and the lower surface being connected to the support 22.

Alternatively, the gasket 6 may be foam. The foam can be well sealed, is light in weight, has certain elasticity and can play a role in buffering.

The seal 6 may be annular, as shown in fig. 2 for example. The ring shape referred to in the embodiments of the present disclosure refers to a closed shape, including but not limited to a circular ring, an elliptical ring, and a rectangular frame.

Illustratively, the thickness of the gasket 6 may be 0.1mm to 0.5 mm. In the disclosed embodiment, the thickness of the gasket 6 is 0.3 mm.

In some examples of the present disclosure, the sealing member 1 may be a display screen whose back face is opposite to the support portion 22 of the middle frame 2. The display screen has two opposite sides, the front side of the display screen refers to the side of the display screen used for displaying pictures, and the back side of the display screen refers to the side opposite to the front side of the display screen. Referring to fig. 3, the sealing gaskets 6 may be positioned between the supporting portion 22 and the first cover plate 3 and between the supporting portion 22 and the rear surface of the display screen.

In other examples of the present disclosure, the sealing member 1 may be a battery cover. The gasket 6 may be positioned between the support portion 22 and the first cover plate 3 and between the support portion 22 and the rear surface of the battery cover.

Fig. 4 is a schematic structural diagram of another sounding component provided in the embodiment of the present disclosure. As shown in fig. 4, in the sound generating assembly, the speaker box 7 may be partially located in the second opening 221 of the support portion 22, the sealing member 1 is hermetically connected to the speaker box 7, and the sealing member 1 and the speaker box 7 enclose the vibration space 31.

Specifically, the lower portion of the speaker box 7 is located inside the second opening 221, the projection of the first opening 32 on the seal member 1 is located inside the projection of the second opening 221 on the seal member 1, the portion of the seal member 1 outside the projection of the second opening 221 on the seal member 1 is connected to the center frame 2, and the support portion 22 is connected to the speaker box 7. Compared with the loudspeaker box 7 in the related art, the loudspeaker box 7 and the sealing member 1 are sealed to form the vibration space 31, and the vibration space 31 of the loudspeaker box 7 is at least increased by the space corresponding to the thickness of the wall surface where the first opening 32 is located, so that the sound film 41 of the loudspeaker box 7 has space for vibrating to a larger extent, and the sound production assembly has better audio performance.

Referring to fig. 4, the sound generating assembly may further comprise a gasket 6, and the gasket 6 is located between the speaker box 7 and the sealing member 1. The sealing gasket 6 is used for sealing a gap between the loudspeaker box 7 and the sealing element 1, so that a better sealing effect is achieved between the sealing element 1 and the loudspeaker box 7, and the gap between the sealing element 1 and the loudspeaker box 7 is prevented from being leaked to influence the tone quality of the loudspeaker box 7. And sealed 6 self of filling up has certain thickness, through setting up sealed 6, can increase the interval between speaker box 7 and the sealing member 1 to increase vibration space 31, make the sound generating component have better audio performance.

In the disclosed embodiment, the upper surface of the gasket 6 is connected to the first cover plate 3 of the speaker box 7, the lower surface of the gasket 6 is connected to the sealing member 1, and the gasket 6 surrounds the first opening 32.

For the sound emitting assembly shown in fig. 4, in some examples, the seal 1 may be a display screen having a back surface opposite the first opening 32 of the near speaker box 7. A gasket 6 may be located between the back of the display and the first cover plate 3.

In other examples, the seal 1 may be a battery cover. A gasket 6 may be located between the battery cover and the first cover plate 3.

In addition, the embodiment of the disclosure also provides an electronic device, which includes any one of the sound emitting assemblies shown in fig. 2 to 4. The electronic device may be, but is not limited to: smart phones, tablet computers, MP3 players (Moving Picture Experts Group Audio Layer III, motion video Experts compression standard Audio Layer 3), MP4 players (Moving Picture Experts Group Audio Layer IV, motion video Experts compression standard Audio Layer 4), and notebook computers. The electronic device may also be referred to by other names such as user equipment, portable terminal, laptop terminal, etc. In the electronic device, the first opening 32 is provided on the speaker box 7, the vibration space 31 is located between the speaker box 7 and the sealing member 1, the vibration space 31 is not limited to the inside of the speaker box 7, and at least the space corresponding to the first opening 32 of the speaker box 7 is included, so that the limitation of the size of the speaker box 7 on the vibration space 31 is broken, and the vibration space 31 is enlarged. The sound diaphragm 41 in the speaker box 7 is made to have a space to make a vibration of a larger amplitude, thereby enabling the sound emitting assembly to have a better audio performance.

Unless defined otherwise, all technical terms used in the embodiments of the present disclosure have the same meaning as commonly understood by one of ordinary skill in the art.

In this disclosure, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The term "plurality" means two or more unless expressly limited otherwise.

Although the present disclosure has been described with reference to specific embodiments, it will be understood by those skilled in the art that various changes, substitutions and alterations can be made herein without departing from the spirit and scope of the disclosure.

Claims (11)

1. A loudspeaker enclosure (7), characterized in that the loudspeaker enclosure (7) comprises a first cover plate (3), a loudspeaker core (4) and a second cover plate (5), the first cover plate (3) and the second cover plate (5) being arranged opposite each other, the first cover plate (3) having a first opening (32) therein, the loudspeaker core (4) being mounted between the first cover plate (3) and the second cover plate (5), and a sound membrane (41) of the loudspeaker core (4) being opposite the first opening (32).

2. A loudspeaker enclosure (7) according to claim 1, wherein an orthographic projection of the sound membrane (41) on the first cover plate (3) is located in the first opening (32).

3. A sound emitting assembly, characterized by comprising a seal (1), a middle frame (2) and a loudspeaker enclosure (7) according to claim 1 or 2;

the loudspeaker box (7) is positioned in the middle frame (2), the first cover plate (3) is close to the supporting part (22) of the middle frame (2), and the first opening (32) is opposite to the second opening (221) of the supporting part (22) of the middle frame (2);

the sealing piece (1) is located outside the middle frame (2) and opposite to the second opening (221), and a vibration space (31) of the loudspeaker box (7) is formed between the loudspeaker box (7) and the sealing piece (1).

4. The sound generating assembly according to claim 3, characterized in that the speaker box (7) is located outside the second opening (221) of the support (22), the speaker box (7) being sealingly connected to the support (22), the support (22) being sealingly connected to the seal (1), the speaker box (7), the support (22) and the seal (1) enclosing the vibration space (31).

5. The sound generating assembly according to claim 4, characterized in that it further comprises a sealing gasket (6), said sealing gasket (6) being located between the support (22) and the loudspeaker enclosure (7) and between the support (22) and the seal (1).

6. A sound-generating assembly according to claim 3, characterised in that the loudspeaker enclosure (7) is partly located in the second opening (221) of the support (22), that the seal (1) is sealingly connected to the loudspeaker enclosure (7), and that the seal (1) and the loudspeaker enclosure (7) enclose the vibration space (31).

7. The sound generating assembly according to claim 6, characterized in that it further comprises a gasket (6), said gasket (6) being located between said speaker box (7) and said seal (1).

8. The sound emitting assembly according to claim 5 or 7, characterized in that the sealing gasket (6) is foam.

9. The sound generating assembly according to any one of claims 3 to 7, wherein the sealing member (1) is a display screen, and the back surface of the display screen is opposite to the supporting portion (22) of the center frame (2).

10. A sound emitting assembly according to any of claims 3-7, wherein the sealing member (1) is a battery cover.

11. An electronic device comprising the sound emitting assembly of any one of claims 3-10.

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