CN219107640U - Side-sounding loudspeaker module and display device - Google Patents

Abstract

The application provides a speaker module and display device of side play sound, speaker module includes: a first speaker, a second speaker, and a housing; the first loudspeaker and the second loudspeaker are arranged in the shell side by side, and the sound emitting directions of the first loudspeaker and the second loudspeaker are opposite; the shell is provided with a first front sound cavity, a second front sound cavity and a rear sound cavity, the first front sound cavity is positioned at the sound outlet end of the first loudspeaker, the second front sound cavity is positioned at the sound outlet end of the second loudspeaker, the first loudspeaker and the second loudspeaker share the rear sound cavity, and the same side of the shell is provided with a first sound outlet communicated with the first front sound cavity and a second sound outlet communicated with the second front sound cavity. This application first speaker and second speaker when simultaneously making an sound, can produce the vibration simultaneously towards opposite direction respectively, can offset two speaker mutual thrust or pulling force from this to furthest has weakened the vibration energy transfer of two speakers to the casing, has weakened the resonance phenomenon of speaker module effectively.

Description

Side-sounding loudspeaker module and display device

Technical Field

The application relates to the technical field of display equipment, in particular to a side-sounding loudspeaker module and display equipment.

Background

Some display products (such as intelligent blackboards and intelligent interactive display devices) on the market are developed towards thinner and thinner directions, and the bass sound box applied to the display products needs to be made thinner in order to match with the whole structure, and in order to match with wall-mounted or wall-embedded installation, the bass sound box is required to be only arranged on a frame to be made into a side sound structure. The common bass sound box is characterized in that a single loudspeaker or two loudspeakers are arranged on the same side of a sound box shell, the loudspeakers vibrate and sound in one direction, and sound is emitted from the side face of the sound box shell through a sound guiding structure, so that obvious resonance exists in the sound box, the installation space of many parts is compressed and reduced after the product is thinned, and the influence of resonance of the sound box cannot be reduced when some damping structures and measures are added into the product.

In order to solve these problems, it is common to reduce the power of the speaker or cut off the low frequency of the speaker to reduce the vibration of the speaker, but this may result in poor sound effects, and the optimal state is not achieved.

Disclosure of Invention

An objective of the present utility model is to provide a speaker module with side sound and a display device, so as to solve the drawbacks and disadvantages of the prior art.

The utility model provides a loudspeaker module of side play sound, include:

a first speaker, a second speaker, and a housing;

the first loudspeaker and the second loudspeaker are arranged in the shell side by side, and the sound emitting directions of the first loudspeaker and the second loudspeaker are opposite; the shell is provided with a first front sound cavity, a second front sound cavity and a rear sound cavity, the first front sound cavity is located at the sound outlet end of the first loudspeaker, the second front sound cavity is located at the sound outlet end of the second loudspeaker, the first loudspeaker and the second loudspeaker share the rear sound cavity, and the same side of the shell is provided with a first sound outlet communicated with the first front sound cavity and a second sound outlet communicated with the second front sound cavity.

According to the technical scheme, the first loudspeaker and the second loudspeaker are arranged on the shell side by side and are opposite in sound emitting direction, so that the first loudspeaker and the second loudspeaker can simultaneously vibrate towards opposite directions when simultaneously emitting sound, mutual pushing force or pulling force of the two loudspeakers can be counteracted, vibration energy of the two loudspeakers is furthest weakened and transmitted to the shell, resonance phenomenon of the loudspeaker module is effectively weakened, the loudspeaker module can improve power, and good sound effect is guaranteed. In addition, through setting up the sound outlet of two speakers in the same side of casing, the sound of first speaker and second speaker is overlapped and is propagated to outside together from one side of casing, has effectively improved the volume. The loudspeaker module provided by the embodiment of the application is low in manufacturing cost, small in vibration and good in tone quality.

In a preferred or alternative embodiment, the side-emitting speaker module further includes a passive vibration assembly including a first passive vibration unit and a second passive vibration unit disposed opposite to each other, and the first passive vibration unit and the second passive vibration unit are respectively mounted on opposite sides of the housing and share the rear acoustic cavity.

In a preferred or alternative embodiment, the housing includes an upper shell, a lower shell, a first cover plate, and a second cover plate;

the upper shell and the lower shell are mutually installed and enclose into the rear sound cavity, a first installation position for installing the first loudspeaker is arranged on the top surface of the upper shell, the first cover plate covers the first installation position, the first cover plate and the upper shell and the first loudspeaker form the first front sound cavity, the first sound outlet is formed in the side wall of the upper shell and/or the side wall of the first cover plate, a second installation position for installing the second loudspeaker is arranged on the bottom surface of the lower shell, the second cover plate covers the second installation position, the second cover plate and the lower shell and the second loudspeaker form the second front sound cavity, and the second sound outlet is formed in the side wall of the lower shell and/or the side wall of the second cover plate.

In a preferred or alternative embodiment, the first mounting location and the second mounting location are both groove structures, the first speaker is embedded in the first mounting location, and the second speaker is embedded in the second mounting location.

In a preferred or alternative embodiment, the directions of vibration of the first and second passive vibration units are parallel to the directions of sound emission of the first and second speakers.

In a preferred or alternative embodiment, the first and second speakers are located on either side of a centre line of the housing in the length direction.

In a preferred or alternative embodiment, the passive vibration components are arranged in two groups, and the two groups of passive vibration components are symmetrically arranged at two sides of the center line of the shell in the length direction.

In a preferred or alternative embodiment, the first and second passive vibration units are passive radiators.

In a preferred or alternative embodiment, the passive radiator comprises a flange and a diaphragm, the flange being located around the edge of the diaphragm.

The display device comprises the side-sounding loudspeaker module, the resonance phenomenon can be effectively reduced, good sound effect is guaranteed, and the volume is increased.

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

Drawings

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

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

FIG. 3 is a cross-sectional view taken along the direction A-A in FIG. 2;

FIG. 4 is a cross-sectional view taken along the direction B-B in FIG. 2;

fig. 5 is an exploded view of a speaker module according to an embodiment of the present disclosure;

fig. 6 is an exploded view of a speaker module according to another embodiment of the present disclosure;

fig. 7 is a schematic diagram of a speaker module according to an embodiment of the present disclosure when a first cover is opened;

fig. 8 is a schematic structural diagram of a passive radiator in an embodiment of the present application.

Reference numerals:

1. a first speaker; 2. a second speaker; 3. a housing; 301. a first front acoustic cavity; 3011. a first sound outlet; 302. a second front acoustic chamber; 3021. a second sound outlet; 303. a rear acoustic cavity; 31. an upper case; 311. a first mounting location; 312. a first groove; 32. a lower case; 321. a second mounting location; 322. a second groove; 33. a first cover plate; 34. a second cover plate; 41. a first passive vibration unit; 42. a second passive vibration unit; 401. folding edges; 402. a diaphragm.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art without undue burden from the present disclosure, are within the scope of the present disclosure.

It should be understood that in the description of the present application, the terms "center," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientations or positional relationships illustrated in the drawings, merely to facilitate description of the present application and simplify the description, and do not indicate or imply that the device or element being referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present application. The terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated, i.e., features defining "first," "second," may explicitly or implicitly include one or more such features. Furthermore, unless otherwise indicated, the meaning of "a plurality" is two or more.

It should be noted that, in the description of the present application, unless explicitly specified and limited otherwise, the terms "disposed," "connected," and "hollow" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context.

Referring to fig. 1 to 8, an embodiment of the present application provides a speaker module with side sound, including: a first speaker 1, a second speaker 2 and a housing 3.

As shown in fig. 1 to 6, the first speaker 1 and the second speaker 2 are mounted side by side in the housing 3, and the sound emission directions of the two speakers are opposite, that is, the first speaker 1 and the second speaker 2 vibrate and emit sound in opposite directions, respectively.

In this embodiment, the housing 3 is a thinner cuboid structure, the housing 3 has a first front sound cavity 301, a second front sound cavity 302 and a rear sound cavity 303, the first front sound cavity 301 is located at the sound outlet end of the first speaker 1, the second front sound cavity 302 is located at the sound outlet end of the second speaker 2, the sound outlet end of the speaker is one end of the speaker mounting drum paper, the first speaker 1 and the second speaker 2 share the rear sound cavity 303, the same side of the housing 3 is provided with a first sound outlet 3011 communicated with the first front sound cavity 301 and a second sound outlet 3021 communicated with the second front sound cavity 302, sound emitted by the first speaker 1 propagates from the first sound outlet 3011 to the outside through the first front sound cavity 301, and sound emitted by the second speaker 2 propagates from the second sound outlet 3021 to the outside through the second front sound cavity 302.

According to the technical scheme, the first loudspeaker 1 and the second loudspeaker 2 are arranged on the shell 3 in the opposite directions, so that the first loudspeaker 1 and the second loudspeaker 2 can vibrate towards opposite directions when simultaneously sounding, the mutual thrust or pulling force of the two loudspeakers can be counteracted, vibration energy of the two loudspeakers is furthest weakened and transmitted to the shell 3, resonance of the loudspeaker module is effectively weakened, the loudspeaker module can improve power, and good sound effect is guaranteed. In addition, by providing the sound outlets of the two speakers, that is, the first sound outlet 3011 and the second sound outlet 3021, on the same side of the housing 3, the sound of the first speaker 1 and the second speaker 2 are superimposed together from one side of the housing 3 and propagated to the outside, effectively increasing the sound volume. The loudspeaker module provided by the embodiment of the application is low in manufacturing cost, small in vibration and good in tone quality.

In this embodiment, the specifications of the first speaker 1 and the second speaker 2 are the same, and the two speakers may be connected in parallel or in series, so that the first speaker 1 and the second speaker 2 vibrate to generate sound in response to the input of the audio signal, however, in other embodiments, the specifications of the first speaker 1 and the second speaker 2 may be different, so long as the first speaker and the second speaker can generate vibration at the same time when the audio signal is input.

In this embodiment, when the speaker module is horizontally placed, the first speaker 1 emits sound upward, that is, the sound emitting end of the first speaker 1 faces upward, and the second speaker 2 emits sound downward, that is, the sound emitting end of the second speaker 2 faces downward.

In order to facilitate the manufacturing of the housing 3 and the assembly of the speaker with the housing 3, as shown in fig. 3 to 7, it is preferable that the housing 3 of the present embodiment includes an upper case 31, a lower case 32, a first cover plate 33, and a second cover plate 34.

The upper case 31 and the lower case 32 are mounted to each other and enclose the rear sound chamber 303, and a first mounting position 311 for mounting the first speaker 1 is provided on the top surface of the upper case 31, and when the first speaker 1 is mounted on the first mounting position 311, the sound outlet end thereof faces upward. The first cover plate 33 is placed on the first mounting position 311 so as to be close to the sound outlet end of the first speaker 1, and the first cover plate 33, the upper case 31 and the first speaker 1 form a first front sound chamber 301. The first sound outlet 3011 is disposed on a side wall of the upper case 31 and/or the first cover plate 33, and the first sound outlet 3011 may be disposed only on a side wall of the upper case 31, or may be partially disposed on a side wall of the upper case 31, or may be disposed on a side wall of the first cover plate 33, or may be disposed only on a side wall of the first cover plate 33, or may be disposed on a side wall of the first cover plate 33, and specifically in this embodiment, the first sound outlet 3011 is disposed on a left side wall of the upper case 31 and the first cover plate 33, and the upper case 31 and the first cover plate 33 together form the first sound outlet 3011.

The bottom surface of the lower case 32 is provided with a second mounting location 321 for mounting the second speaker 2, and the sound outlet end of the second speaker 2 faces downward when the second speaker 2 is mounted at the second mounting location 321. The second cover plate 34 is covered on the second mounting position 321, so that the second cover plate 34, the lower shell 32 and the second speaker 2 are close to the sound outlet end of the second speaker 2 to form a second front sound cavity 302, the second sound outlet 3021 is arranged on the side wall of the lower shell 32 and/or the second cover plate 34, similar to the first sound outlet 3011, the second sound outlet 3021 may be arranged on the side wall of the lower shell 32 only, or may be partly arranged on the side wall of the lower shell 32, or may be partly arranged on the side wall of the second cover plate 34, and the two parts enclose to form the second sound outlet 3021, or may be arranged on the side wall of the second cover plate 34 only, and in this embodiment, the second sound outlet 3021 is arranged on the left side walls of the lower shell 32 and the second cover plate 34, and the lower shell 32 and the second cover plate 34 jointly form the second sound outlet 3021.

When the loudspeaker module of this embodiment is assembled, can use modes such as ultrasonic welding, glue bonding or lock screw to assemble upper shell 31 and inferior valve 32 together according to structural strength needs, then install first speaker 1 and second speaker 2 in proper order in first installation position 311 and second installation position 321 after, use the screw to fix first speaker 1 and second speaker 2 respectively, rethread ultrasonic welding, glue bonding or lock screw mode respectively with first apron 33 and second apron 34 on upper shell 31 and inferior valve 32, accomplish the equipment.

Preferably, in this embodiment, the first mounting position 311 and the second mounting position 321 are both in a groove structure, the first speaker 1 is embedded in the first mounting position 311, and the second speaker 2 is embedded in the second mounting position 321, so that the assembly of the first speaker 1 and the second speaker 2 is facilitated, the assembly is enabled to be firmer, the thickness space of the upper shell 31 and the lower shell 32 is fully utilized, the formed speaker module is more compact, and the first cover plate 33 and the second cover plate 34 can be respectively flush with the surfaces of the upper shell 31 and the lower shell 32 after being respectively covered on the upper shell 31 and the lower shell 32, so that the overall aesthetic property is improved.

Preferably, the speaker module of this embodiment further includes a passive vibration assembly, the passive vibration assembly includes a first passive vibration unit 41 and a second passive vibration unit 42 that are disposed opposite to each other, and the first passive vibration unit 41 and the second passive vibration unit 42 are respectively mounted on opposite sides of the housing 3 and share the rear acoustic cavity 303, so that when the first speaker 1 and the second speaker 2 vibrate and sound, air pressure in the rear acoustic cavity 303 changes, thereby driving the first passive vibration unit 41 and the second passive vibration unit 42 to vibrate, thereby generating auxiliary sound effects, improving the sound effect quality of the speaker module, and the first passive vibration unit 41 and the second passive vibration unit 42 that are disposed opposite to each other can offset mutual thrust or tension when vibrating, and can further weaken the resonance phenomenon of the speaker module.

In order to further attenuate the resonance phenomenon of the speaker module, it is preferable that the vibration directions of the first and second passive vibration units 41 and 42 are parallel to the sound emitting directions of the first and second speakers 1 and 2. For example, in the present embodiment, the first passive vibration unit 41 and the second passive vibration unit 42 vibrate in the up-down direction, and the sound emitting direction of the first speaker 1 is directed upward and the sound emitting direction of the second speaker 2 is directed downward.

Specifically, in this embodiment, the first passive vibration unit 41 and the second passive vibration unit 42 are respectively mounted on the top surface of the upper case 31 and the bottom surface of the lower case 32, the first passive vibration unit 41 and the second passive vibration unit 42 may be respectively mounted by means of glue adhesion or the like before the upper case 31 and the lower case 32 are assembled, the top surface of the upper case 31 is provided with the first groove 312 for mounting the first passive vibration unit 41, and the bottom surface of the lower case 32 is provided with the second groove 322 for mounting the second passive vibration unit 42. The passive vibration components of the present embodiment are arranged in two groups, and the two groups of passive vibration components are symmetrically arranged at two sides of the center line of the housing 3 in the length direction, so that the sound quality can be effectively improved and the resonance phenomenon can be reduced.

In this embodiment, the first passive vibration unit 41 and the second passive vibration unit 42 are passive radiators, which can perform passive sound production under the driving of the air in the rear acoustic cavity 303, as shown in fig. 8, where the passive radiator includes a folded edge 401 and a vibrating diaphragm 402, the folded edge 401 is enclosed on the edge of the vibrating diaphragm 402, and the passive radiator is connected to the housing 3 through the folded edge 401. When the vibration system formed by the sound wave of the rear sound cavity 303 and the passive radiator resonates at low frequency, the passive radiator can radiate low-frequency sound wave with high efficiency, so that the low-frequency response of the whole loudspeaker module is improved, the low-frequency range is expanded, and the bass effect is enhanced.

Preferably, in the present embodiment, the first speaker 1 and the second speaker 2 are located on both sides of the center line of the housing 3 in the length direction, respectively, whereby the overall structure can be made more balanced.

The embodiment of the application also provides a display device, which comprises the loudspeaker module with side sound in the embodiment, and by using the loudspeaker module in the embodiment, the display device can effectively reduce resonance phenomenon, ensure good sound effect and improve volume.

The above examples only represent a few embodiments of the present application, which are described in more detail and are not to be construed as limiting the scope of the present application. It should be noted that it would be apparent to those skilled in the art that various modifications and improvements could be made without departing from the spirit of the present application, which would be within the scope of the present application.

Claims (10)

1. A side-emitting speaker module, comprising:

a first speaker, a second speaker, and a housing;

the first loudspeaker and the second loudspeaker are arranged in the shell side by side, and the sound emitting directions of the first loudspeaker and the second loudspeaker are opposite; the shell is provided with a first front sound cavity, a second front sound cavity and a rear sound cavity, the first front sound cavity is located at the sound outlet end of the first loudspeaker, the second front sound cavity is located at the sound outlet end of the second loudspeaker, the first loudspeaker and the second loudspeaker share the rear sound cavity, and the same side of the shell is provided with a first sound outlet communicated with the first front sound cavity and a second sound outlet communicated with the second front sound cavity.

2. The side-emitting speaker module of claim 1, wherein:

the device comprises a shell, a driven vibration assembly, a back sound cavity and a sound cavity, wherein the driven vibration assembly comprises a first driven vibration unit and a second driven vibration unit which are arranged in a back-to-back mode, and the first driven vibration unit and the second driven vibration unit are respectively arranged on two opposite sides of the shell and share the back sound cavity.

3. The side-emitting speaker module of claim 1, wherein:

the shell comprises an upper shell, a lower shell, a first cover plate and a second cover plate;

the upper shell and the lower shell are mutually installed and enclose into the rear sound cavity, a first installation position for installing the first loudspeaker is arranged on the top surface of the upper shell, the first cover plate covers the first installation position, the first cover plate and the upper shell and the first loudspeaker form the first front sound cavity, the first sound outlet is formed in the side wall of the upper shell and/or the side wall of the first cover plate, a second installation position for installing the second loudspeaker is arranged on the bottom surface of the lower shell, the second cover plate covers the second installation position, the second cover plate and the lower shell and the second loudspeaker form the second front sound cavity, and the second sound outlet is formed in the side wall of the lower shell and/or the side wall of the second cover plate.

4. A side-firing speaker module according to claim 3, wherein:

the first installation position and the second installation position are both groove structures, the first loudspeaker is embedded in the first installation position, and the second loudspeaker is embedded in the second installation position.

5. The side-firing speaker module of claim 2, wherein:

the vibration directions of the first passive vibration unit and the second passive vibration unit are parallel to the sound emitting directions of the first loudspeaker and the second loudspeaker.

6. A side-entry speaker module according to any one of claims 1-5, wherein:

the first speaker and the second speaker are respectively located at both sides of a center line of the housing in a length direction.

7. The side-firing speaker module of claim 2, wherein:

the passive vibration components are arranged in two groups, and the two groups of passive vibration components are symmetrically arranged on two sides of the center line of the shell in the length direction.

8. The side-firing speaker module of claim 2, wherein:

the first passive vibration unit and the second passive vibration unit are both passive radiators.

9. The side-firing speaker module of claim 8, wherein:

the passive radiator comprises a folded edge and a vibrating diaphragm, and the folded edge is arranged on the edge of the vibrating diaphragm in a surrounding mode.

10. A display device, characterized by comprising:

a side-firing speaker module according to any one of claims 1-9.

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