CN220022994U - Sound box and audio-visual equipment - Google Patents

Abstract

The utility model relates to a sound box and audio-visual equipment. The loudspeaker box comprises a box body and a loudspeaker module, wherein the box body is provided with an inner cavity and an air outlet communicated with the inner cavity, a tortuous air channel is formed in the inner cavity, the air channel is communicated with the air outlet, the loudspeaker module is arranged on the box body, and the vibrating diaphragm surface of the loudspeaker module is consistent with the direction of the air outlet. The sound box prevents the air flow generated by the low-frequency sound wave from blowing the internal parts of the audio-visual equipment to generate noise, thereby improving the bass tone quality of the sound box.

Description

Sound box and audio-visual equipment

Technical Field

The utility model relates to the technical field of sound box equipment, in particular to a sound box and audio-visual equipment.

Background

The sound box is an important component in audio-visual equipment such as televisions, mobile phones and tablets, and the sound box is used for converting audio electric energy into corresponding sound energy and radiating the sound energy into space. With the development of electronic technology, audiovisual devices are also moving toward portability and portability. In order to match with audio-visual equipment, sound boxes are also being developed to be light and thin and small.

With the development of society and the improvement of living standard, the requirements of people on audio equipment are higher and higher, and especially the requirements of music lovers on sound box products are higher and higher. In order to improve the tone color of the sound box, an air pipe is usually arranged in the sound box product, but in order to meet the requirements of lightening and miniaturization of the sound box, the air pipe is usually designed to be shorter, and an air outlet of the air pipe is usually designed at the bottom or side surface of the sound box. After the sound box is installed on the audio-visual equipment, the low-frequency energy of the sound box is easy to be obstructed and consumed by the internal parts of the audio-visual equipment, so that the low-frequency effect is poor, and meanwhile, the air flow in the air pipe can blow the internal parts of the audio-visual equipment to generate noise. In the related art, in order to extend the low frequency, only the volume of the sound box can be increased or independent bass sounds can be directly increased, and at the same time, the internal parts of the audio-visual equipment need to be added with fixing measures to improve the noise, but the volume of the box is increased, the bass sounds are increased, and the internal fixing measures are added, so that the appearance of the product is sacrificed and the cost is increased.

Disclosure of Invention

Based on this, it is necessary to provide a sound box and an audio-visual device for the problem of how to reduce noise of the sound box and improve sound quality of the sound box.

The utility model provides a sound box, includes box and loudspeaker module, the box be equipped with the inner chamber and with the air outlet of inner chamber intercommunication, be formed with tortuous wind channel in the inner chamber, the wind channel with the air outlet intercommunication, loudspeaker module sets up on the box, loudspeaker module has the vibrating diaphragm face that deviates from the inner chamber, the vibrating diaphragm face with the orientation of air outlet is unanimous.

The technical scheme is further described as follows:

in one embodiment, the air duct comprises a first bending section, a straight pipe section and a second bending section, the straight pipe section is connected between the first bending section and the second bending section, the first bending section and the second bending section are both arranged at an included angle with the straight pipe section, the first bending section and the second bending section are oriented in the same direction, the straight pipe section is located at one side of the loudspeaker module, which is away from the vibrating diaphragm surface, the first bending section is provided with a first opening end, the first opening end is communicated with the air outlet, the second bending section is provided with a second opening end, and the second opening end is located in the inner cavity and extends to one side of the loudspeaker module, which is away from the air outlet.

In one embodiment, rounded structures are disposed between the first bending section and the straight pipe section, and between the straight pipe section and the second bending section.

In one embodiment, the inner diameter of the first bending section gradually increases along the direction approaching the air outlet.

In one embodiment, the box body is further provided with a mounting groove communicated with the inner cavity, the mounting groove and the air outlet are located on the same side of the box body, and the loudspeaker module is arranged in the mounting groove.

In one embodiment, a sound insulation plate is arranged between the mounting groove and the inner cavity; the sound insulation plate is provided with a sound transmission hole communicated with the mounting groove and the inner cavity, the loudspeaker module comprises a voice coil, and the voice coil and the sound transmission hole are correspondingly arranged; and/or, the sound insulation plate is provided with a wiring hole which is communicated with the mounting groove and the inner cavity, and the wiring hole is used for penetrating wires.

In one embodiment, a step surface is formed on the side wall of the mounting groove, and the horn module is convexly provided with a mounting portion, and the mounting portion is connected with the step surface.

In one embodiment, a partition plate is arranged in the inner cavity, the partition plate divides the inner cavity into the air channel and the wiring channel, the box body is further provided with a wire outlet hole communicated with the inner cavity, the sound box further comprises a wire, at least part of the wire is arranged in the wiring channel in a penetrating mode, one end of the wire is connected with the electric wire of the loudspeaker module, and the other end of the wire penetrates through the inner cavity from the wire outlet hole.

In one embodiment, the box body comprises a first shell and a second shell, the first shell is connected with the second shell and jointly encloses to form the inner cavity and the air outlet, a supporting plate is arranged in the first opening end, one end of the supporting plate is connected with the first shell, and the other end of the supporting plate is connected with the second shell.

The utility model also provides audio-visual equipment comprising the loudspeaker box.

When the loudspeaker box works, the loudspeaker module radiates low-frequency sound waves to the inner cavity through the vibration effect, the low-frequency sound waves enter the air duct, resonance is caused in the air duct, resonance is generated, and then the low-frequency sound waves flow out of the air outlet, so that bass is generated. Because when installing audio amplifier to audio-visual equipment, the vibrating diaphragm face of loudspeaker module needs towards audio-visual equipment outside, through with the air outlet with the unanimous setting of vibrating diaphragm face orientation of loudspeaker module, guaranteed to install the audio amplifier to audio-visual equipment after, the air outlet can be towards audio-visual equipment's outside to avoided low frequency sound wave to block the consumption by audio-visual equipment's internals after flowing out from the air outlet, also avoided the air current that low frequency sound wave produced to blow audio-visual equipment internals and send the noise simultaneously, thereby improved the bass tone quality of audio amplifier.

Drawings

The accompanying drawings, which are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate embodiments of the utility model and together with the description serve to explain the utility model.

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments of the present utility model, and other drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

Moreover, the figures are not drawn to a 1:1 scale, and the relative sizes of various elements are merely exemplary in the figures, and are not necessarily drawn to true scale. In the drawings:

fig. 1 is a structural diagram of a sound box according to an embodiment.

Fig. 2 is a top view of the loudspeaker shown in fig. 1.

Fig. 3 is a cross-sectional view of the sound box shown in fig. 2 at section A-A.

Fig. 4 is an exploded view of the loudspeaker shown in fig. 1.

Fig. 5 is an exploded view of the loudspeaker shown in fig. 1.

Reference numerals illustrate:

10. a case; 101. a first housing; 102. a second housing; 11. an inner cavity; 111. an air duct; 1111. a first bending section; 1112. a straight pipe section; 1113. a second bending section; 112. a routing channel; 113. a partition plate; 114. a rounded corner structure; 115. a support plate; 116. a sound insulation board; 1161. a sound transmission hole; 1162. a wiring hole; 12. an air outlet; 13. a mounting groove; 131. a step surface; 14. a connection part; 15. damping rubber cushion; 16. a wire outlet hole; 20. a speaker module; 21. a voice coil; 22. a mounting part; 23. a diaphragm surface; 30. a wire rod; 40. a screw.

Detailed Description

In order that the above objects, features and advantages of the utility model will be readily understood, a more particular description of the utility model will be rendered by reference to the appended drawings. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present utility model. The present utility model may be embodied in many other forms than described herein and similarly modified by those skilled in the art without departing from the spirit of the utility model, whereby the utility model is not limited to the specific embodiments disclosed below.

In the description of the present utility model, it should be understood that, if any, these terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., are used herein with respect to the orientation or positional relationship shown in the drawings, these terms refer to the orientation or positional relationship for convenience of description and simplicity of description only, and do not indicate or imply that the apparatus or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model.

Furthermore, the terms "first," "second," and the like, if any, 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. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present utility model, the terms "plurality" and "a plurality" if any, mean at least two, such as two, three, etc., unless specifically defined otherwise.

In the present utility model, unless explicitly stated and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly. For example, the two parts can be fixedly connected, detachably connected or integrated; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

In the present utility model, unless expressly stated or limited otherwise, the meaning of a first feature being "on" or "off" a second feature, and the like, is that the first and second features are either in direct contact or in indirect contact through an intervening medium. Moreover, a first feature being "above," "over" and "on" a second feature may be a first feature being directly above or obliquely above the second feature, or simply indicating that the first feature is level higher than the second feature. The first feature being "under", "below" and "beneath" the second feature may be the first feature being directly under or obliquely below the second feature, or simply indicating that the first feature is less level than the second feature.

It will be understood that if an element is referred to as being "fixed" or "disposed" on another element, it can be directly on the other element or intervening elements may also be present. If an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and the like as used herein, if any, are for descriptive purposes only and do not represent a unique embodiment.

The utility model provides audio-visual equipment which can be particularly an electronic product which is common in the market and can realize audio-visual functions, such as an intelligent screen, an integrated machine, a tablet, a notebook, a computer, a television, an intelligent sound box and the like. In order to realize the audio-visual function, audio-visual devices are usually provided with sound boxes.

Specifically, in the conventional sound box, in order to meet the requirements of lightening and miniaturization of the sound box, the air duct is generally designed to be shorter, so that the lowest resonance frequency of the sound box is difficult to be low, the low-frequency submergence is poor, and the sound quality of the sound box is poor. And in order to be convenient for go out the mould, the tuber pipe is usually designed into the straight tube, and the tuber pipe is installed in the audio amplifier bottom, leads to the air outlet of tuber pipe can only establish in audio amplifier bottom or side, when installing audio amplifier in audio-visual equipment's casing, the low frequency energy that the audio amplifier sent is consumed by audio-visual equipment's internals separation, leads to audio amplifier low frequency effect variation, and the air current in the tuber pipe can blow audio-visual equipment internals and send the noise simultaneously, has further reduced audio amplifier tone quality.

Based on this, the present utility model further provides a sound box, referring to fig. 1 to 3, where the sound box in an embodiment includes a box 10 and a speaker module 20, the box 10 is provided with an inner cavity 11 and an air outlet 12 that is communicated with the inner cavity 11, the speaker module 20 is disposed on the box 10, the speaker module 20 has a vibrating surface 23 facing away from the inner cavity 11, and the vibrating surface 23 is a surface on which a vibrating film is disposed on the speaker module 20, and the vibrating surface is consistent with the air outlet 12. A meandering air duct 111 is formed in the inner chamber 11, and the air duct communicates with the air outlet. Preferably, in an embodiment, the air duct 111 includes a first bending section 1111, a straight pipe section 1112 and a second bending section 1113, the straight pipe section 1112 is connected between the first bending section 1111 and the second bending section 1113, the first bending section 1111 and the second bending section 1113 are disposed at an included angle with the straight pipe section 1112, the first bending section 1111 and the second bending section 1113 are oriented in the same direction, the first bending section 1111 is disposed on a side of the speaker module 20 near the air outlet 12 and has a first opening end, the first opening end is communicated with the air outlet 12, the second bending section 1113 has a second opening end, and the second opening end is located in the inner cavity 11 and extends to a side of the speaker module 20 far away from the air outlet 12.

When the loudspeaker box works, the loudspeaker module 20 radiates low-frequency sound waves to the inner cavity 11 through vibration, the low-frequency sound waves enter the air duct 111 from the second opening end, resonance is caused in the air duct 111, resonance is generated, and then the low-frequency sound waves flow out of the air outlet 12, so that bass is generated. Because when installing the audio amplifier to audio-visual equipment, the vibrating diaphragm face of loudspeaker module 20 needs to face outside audio-visual equipment, through with the air outlet 12 with loudspeaker module 20 the vibrating diaphragm face set up unanimously towards, guaranteed to install the audio amplifier to audio-visual equipment after, air outlet 12 can face outside audio-visual equipment to avoided low frequency sound wave to flow out the back from air outlet 12 and blockked the consumption by audio-visual equipment's internals, also avoided the air current that low frequency sound wave produced to blow audio-visual equipment internals and send the noise simultaneously, thereby improved the bass tone quality of audio amplifier.

Further, the air duct 111 is configured with the first bending section 1111, the straight pipe section 1112 and the second bending section 1113 which are connected in an included angle manner, and the straight pipe section 1112 is arranged on one side of the horn module 20, which is away from the vibrating diaphragm surface, the first opening end of the first bending section 1111 is connected with the air outlet 12, and the second opening end of the second bending section 1113 extends to one side of the horn module 20, which is away from the air outlet 12, so that the length of the air duct 111 is greatly prolonged, and low-frequency sound wave energy passes through a longer path in the air duct 111 to fully cause resonance to generate resonance, so that low-frequency diving is effectively expanded.

Further, a rounded corner structure 114 is provided between the first bending section 1111 and the straight pipe section 1112. The rounded corner structure 114 is also arranged between the straight pipe section 1112 and the second bending section 1113, so that the first bending section 1111 and the straight pipe section 1112 are in smooth transition, the straight pipe section 1112 and the second bending section 1113 are in smooth transition, the obstruction of air flow at the bending part of the air duct 111 is reduced, the low-frequency sound wave can pass through the air duct 111 more smoothly, the risks of air flow obstruction and standing wave generation are reduced, noise or noise is reduced, and the tone quality and the hearing effect of the loudspeaker box are improved.

Further, along the direction close to the air outlet 12, the inner diameter of the first bending section 1111 is gradually increased, i.e. the first opening end forms a flared structure, so that the obstruction of the air flow at the first opening end is reduced, and meanwhile, the intensity of the sound wave radiated by the first opening end can be enhanced, and the sound quality is improved.

Further, referring to fig. 3 and 4, the box 10 includes a first housing 101 and a second housing 102, where the first housing 101 and the second housing 102 are relatively connected and jointly enclose an inner cavity 11, an air outlet 12, and an air duct 111. Specifically, the first casing 101 and the second casing 102 are relatively connected along the direction parallel to the diaphragm surface 23, so that the disassembly and assembly are more convenient. Further, a support plate 115 is disposed in the first opening end, one end of the support plate 115 is connected to the first housing 101, and the other end of the support plate 115 is connected to the second housing 102. The first supporting plate 115 supports the first shell 101 and the second shell 102, so that the structural strength of the box body 10 at the air outlet 12 is improved, and the problem that the loudspeaker is easy to damage due to the structural weakness of the air outlet 12 during installation or transportation is avoided. Preferably, the extending direction of the support plate 115 is consistent with the extending direction of the first opening end, so as to avoid the support plate 115 from obstructing the air flow in the air duct 111.

Referring to fig. 3, the box 10 further includes a wire rod 30, one end of the wire rod 30 is electrically connected with the speaker module 20, and the other end of the wire rod 30 penetrates the inner cavity 11 from the wire hole 16, so that the power supply is connected to one end of the wire rod 30 penetrating the inner cavity 11, and power supply to the speaker module 20 can be realized.

Referring to fig. 3, the box 10 is further provided with a mounting groove 13 communicating with the inner cavity 11, the mounting groove 13 and the air outlet 12 are located on the same side of the box, and the horn module 20 is disposed in the mounting groove 13. So make the overall structure of audio amplifier compacter, reduce the required space of audio amplifier installation.

Referring to fig. 5, a sound insulation plate 116 is provided between the mounting groove 13 and the inner cavity 11, and the sound insulation plate 116 is provided with a through hole for communicating the mounting groove 13 with the inner cavity 11. The horn module 20 can radiate low-frequency sound waves to the inner cavity 11 through the through holes, and can be electrically connected with the wires 30 in the inner cavity 11 through the through holes. Further, a plurality of through holes are provided, and at least one sound transmission hole 1161 for radiating sound waves and at least one routing hole 1162 for penetrating the wire 30 are included in the plurality of through holes. Preferably, a plurality of sound transmission holes 1161 are provided, and the speaker module 20 includes a plurality of voice coils 21, where the voice coils 21 are disposed in a one-to-one correspondence with the sound transmission holes 1161. For example, in this embodiment, the speaker module 20 includes two voice coils 21, the two voice coils 21 are arranged side by side, the sound insulation plate 116 is provided with two sound transmission holes 1161, and the two voice coils 21 and the two sound transmission holes 1161 are arranged in a one-to-one correspondence, so that the sound insulation plate 116 is prevented from blocking the sound waves radiated from the voice coils 21 to the inner cavity 11.

Further, referring to fig. 3 and 4, a partition plate 113 is disposed in the inner cavity 11, the partition plate 113 partitions the inner cavity 11 into an air duct 111 and a routing channel 112, and at least a portion of the wire 30 is disposed in the routing channel 112. The wire channel 112 is separated from the air channel 111 by the separation plate 113, so that the wire 30 is prevented from penetrating into the air channel 111 to block the air flow in the air channel 111, and further, noise or noise is prevented from being generated.

Referring to fig. 5, the side wall of the mounting groove 13 is formed with a stepped surface 131, and the end of the horn module 20 is protruded with a mounting portion 22, and the mounting portion 22 is connected with the stepped surface 131. Further, two side walls of the mounting groove 13, which are oppositely arranged along the length direction of the loudspeaker box, are respectively provided with a step surface 131, and mounting portions 22 are respectively arranged at two ends of the loudspeaker module 20 along the length direction, and the mounting portions 22 are connected to the step surfaces 131 in a one-to-one correspondence manner, so that the mounting stability of the loudspeaker module 20 is improved. Preferably, the step surface 131 is provided with a threaded hole, the mounting portion 22 is provided with a through hole, the sound box further comprises a screw member 40, and the screw member 40 is arranged in the through hole and the threaded hole in a penetrating manner, so that the loudspeaker module 20 is locked and attached on the box body 10. The loudspeaker module 20 is connected with the box 10 through the screw 40, so that the loudspeaker module 20 can be disassembled and maintained conveniently.

With continued reference to fig. 5, the end of the case 10 is further provided with a connection portion 14 for connection to the casing of the audio-visual apparatus, the connection portion 14 is provided with a shock absorbing rubber pad 15, and the shock absorbing rubber pad 15 can absorb the shock between the sound box and the casing, thereby reducing noise generation.

The technical features of the above-described embodiments may be arbitrarily combined, and all possible combinations of the technical features in the above-described embodiments are not described for brevity of description, however, as long as there is no contradiction between the combinations of the technical features, they should be considered as the scope of the description.

The above examples illustrate only a few embodiments of the utility model, which are described in detail and are not to be construed as limiting the scope of the claims. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims (10)

1. The utility model provides a sound box, its characterized in that, includes box and loudspeaker module, the box be equipped with the inner chamber and with the air outlet of inner chamber intercommunication, be formed with tortuous wind channel in the inner chamber, the wind channel with the air outlet intercommunication, loudspeaker module sets up on the box, loudspeaker module has the vibrating diaphragm face that deviates from the inner chamber, the vibrating diaphragm face with the orientation of air outlet is unanimous.

2. The sound box according to claim 1, wherein the air duct comprises a first bending section, a straight pipe section and a second bending section, the straight pipe section is connected between the first bending section and the second bending section, the first bending section and the second bending section are both arranged at an included angle with the straight pipe section, the first bending section and the second bending section are oriented in a consistent direction, the straight pipe section is located at one side of the speaker module, which is away from the diaphragm surface, the first bending section is provided with a first opening end, the first opening end is communicated with the air outlet, the second bending section is provided with a second opening end, and the second opening end is located in the inner cavity and extends to one side of the speaker module, which is away from the air outlet.

3. The sound box according to claim 2, wherein rounded corner structures are arranged between the first bending section and the straight pipe section and between the straight pipe section and the second bending section.

4. The sound box according to claim 2, wherein the inner diameter of the first bending section gradually increases in a direction approaching the air outlet.

5. The sound box according to claim 1, wherein the box body is further provided with a mounting groove communicated with the inner cavity, the mounting groove and the air outlet are located on the same side of the box body, and the speaker module is arranged in the mounting groove.

6. The sound box according to claim 5, wherein a sound insulation plate is arranged between the mounting groove and the inner cavity;

the sound insulation plate is provided with a sound transmission hole communicated with the mounting groove and the inner cavity, the loudspeaker module comprises a voice coil, and the voice coil and the sound transmission hole are correspondingly arranged; and/or, the sound insulation plate is provided with a wiring hole which is communicated with the mounting groove and the inner cavity, and the wiring hole is used for penetrating wires.

7. The sound box according to claim 5, wherein a step surface is formed on a side wall of the mounting groove, and the speaker module is convexly provided with a mounting portion, and the mounting portion is connected with the step surface.

8. The sound box according to claim 1, wherein a partition plate is arranged in the inner cavity, the partition plate divides the inner cavity into the air channel and the wiring channel, the box body is further provided with a wire hole communicated with the inner cavity, the sound box further comprises a wire, at least part of the wire is arranged in the wiring channel in a penetrating mode, one end of the wire is electrically connected with the loudspeaker module, and the other end of the wire penetrates out of the inner cavity from the wire hole.

9. The sound box according to claim 2, wherein the box body comprises a first shell and a second shell, the first shell is connected with the second shell and jointly encloses to form the inner cavity and the air outlet, a supporting plate is arranged in the first opening end, one end of the supporting plate is connected with the first shell, and the other end of the supporting plate is connected with the second shell.

10. An audio-visual device comprising a sound box according to any one of the preceding claims 1-9.