CN111294673B

CN111294673B - Sound structure and electronic equipment

Info

Publication number: CN111294673B
Application number: CN202010079841.1A
Authority: CN
Inventors: 唐春树
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2016-06-29
Filing date: 2016-06-29
Publication date: 2021-09-14
Anticipated expiration: 2036-06-29
Also published as: CN105916067A; CN105916067B; CN111294673A

Abstract

The invention discloses a sound box structure and electronic equipment. The box includes first subassembly and second subassembly. The first assembly comprises a first part and a second part which are connected, and the first part and the second part form a height difference to form a space. The first component and the second component are connected to form a sound cavity. The cover member is hermetically connected with the first assembly and defines an inverter hole together with the space, and the inverter hole is communicated with the sound cavity and the outside of the sound structure. The loudspeaker is arranged in the sound cavity. In the sound structure of the embodiment of the invention, the space formed by the height difference between the first part and the second part and the covering part form the phase reversal hole, so that the volume of the sound cavity occupied by arranging an independent leakage pipe in the sound cavity can be avoided, and the sound effect quality of the sound structure is improved.

Description

Sound structure and electronic equipment

The present application is a divisional application of an invention patent application having an application number of "2016105094574" entitled "audio structure and electronic device".

Technical Field

The invention relates to the technical field of electroacoustic, in particular to a sound structure and electronic equipment.

Background

At present, along with the development of science and technology, electronic equipment with an audio playing function is loved by people, and people can use the electronic equipment to play audio such as music to enrich the daily life of the people. In the related art, a leakage pipe may be provided in a sound cavity of a sound structure to improve sound effect quality of the sound structure. However, the volume of the sound cavity can be occupied by the leakage pipe, so that the volume of the sound cavity is reduced, and the sound effect quality improvement effect of the sound system is poor.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art. Therefore, the invention provides an acoustic structure and an electronic device.

The sound structure of the embodiment of the invention comprises a box body, a covering piece and a loudspeaker. The box includes first subassembly and second subassembly. The first assembly comprises a first part and a second part which are connected, and the first part and the second part form a height difference to form a space. The first component and the second component are connected to form a sound cavity. The covering part is connected with the first assembly in a sealing mode, and defines a leakage hole together with the space, and the leakage hole is communicated with the sound cavity and the outside of the sound box structure. The loudspeaker is arranged in the sound cavity.

In the sound structure of the embodiment of the invention, as the space formed by the height difference between the first part and the second part and the covering part form the leakage hole, the volume of the sound cavity occupied by arranging an independent leakage pipe in the sound cavity can be avoided, and the sound effect quality of the sound structure is better.

In some embodiments, the first portion includes a first face located within the acoustic cavity, the second portion includes a second face parallel to the first face, the first face and the second face forming the height difference, the first component includes a transition face connecting the first face and the second face, the transition face being disposed obliquely with respect to the first face.

In some embodiments, the first member has a flat plate shape, the second member has a frame shape with one end open and one end sealed, and the open end of the second member is connected to the first member.

In some embodiments, the second assembly includes a mounting plate opposite the first assembly, the speaker being disposed on the mounting plate.

In some embodiments, the mounting plate is provided with sound outlet holes, and the speakers are arranged corresponding to the sound outlet holes.

In some embodiments, the covering member is bent and includes a first connecting portion and a second connecting portion connected to the first connecting portion, the first connecting portion is connected to the first portion in a sealing manner, and the second connecting portion is connected to the second portion in a sealing manner.

In some embodiments, the cover is located within the sound cavity.

In some embodiments, the acoustic structure includes a seal that seals a gap between the first component and the second component.

In certain embodiments, the seal is compressed foam.

In some embodiments, the sealing member is made of a gel.

In certain embodiments, the seal is a tacky seal.

The electronic device according to an embodiment of the present invention includes the acoustic structure according to any one of the above embodiments.

In the electronic device of the embodiment of the invention, as the space formed by utilizing the height difference between the first part and the second part and the covering part form the leakage hole, the volume of the sound cavity occupied by the leakage pipe due to the independent leakage pipe arranged in the sound cavity can be avoided, and the sound effect quality of the sound structure is better.

In some embodiments, the electronic device is a mobile phone or a tablet computer.

Additional aspects and advantages of the invention will be set forth in part in the description which follows and, in part, will be obvious from the description, or may be learned by practice of the invention.

Drawings

The above and/or additional aspects and advantages of the present invention will become apparent and readily appreciated from the following description of the embodiments, taken in conjunction with the accompanying drawings of which:

fig. 1 is a schematic cross-sectional view of an acoustic structure according to an embodiment of the present invention.

Fig. 2 is a schematic cross-sectional view of the acoustic structure of fig. 1 taken along direction II-II.

Fig. 3 is an enlarged schematic view of the portion of the acoustic structure III in fig. 1.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the accompanying drawings are illustrative only for the purpose of explaining the present invention, and are not to be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate orientations or positional relationships based on those shown in the drawings, and are used merely for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed in a particular orientation, and be operated, and thus should not be considered as limiting the present invention. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first", second "may explicitly or implicitly include one or more of the feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

In the description of the present invention, it should be noted that unless otherwise explicitly stated or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; may be mechanically connected, may be electrically connected or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the present invention, unless otherwise expressly stated or limited, "above" or "below" a first feature means that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact with each other via another feature therebetween. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature includes the first feature being directly under and obliquely below the second feature, or simply meaning that the first feature is at a lesser elevation than the second feature.

The following disclosure provides many different embodiments or examples for implementing different features of the invention. To simplify the disclosure of the present invention, the components and arrangements of specific examples are described below. Of course, they are merely examples and are not intended to limit the present invention. Furthermore, the present invention may repeat reference numerals and/or letters in the various examples, such repetition is for the purpose of simplicity and clarity and does not in itself dictate a relationship between the various embodiments and/or configurations discussed. In addition, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art may recognize applications of other processes and/or uses of other materials.

Referring to fig. 1 to 3, an acoustic structure 100 according to an embodiment of the present invention includes a box 102, a covering member 104, and a speaker 106. The housing 102 includes a first component 108 and a second component 110. The first component 108 includes a first portion 112 and a second portion 114 connected to each other, and the first portion 112 and the second portion 114 form a height difference to form a space 116.

The first component 108 is connected to the second component 110 to form an acoustic cavity 118. Cover 104 is sealingly connected to first component 108 and cooperates with space 116 to define a leak hole 120, and leak hole 120 communicates with acoustic chamber 118 and the exterior of acoustic structure 100. The speaker 106 is disposed in the acoustic cavity 118.

In the sound structure 100 of the embodiment of the present invention, since the space 116 formed by the height difference between the first portion 112 and the second portion 114 and the covering member 104 form the leakage hole 120, it is able to avoid the volume of the sound cavity 118 from being occupied by an independent leakage pipe arranged in the sound cavity 118, so that the sound effect quality of the sound structure 100 is improved.

In addition, this also reduces the manufacturing cost of the acoustic structure 100.

The sound structure 100 of the embodiment of the invention can be applied to small electronic devices such as mobile terminals, for example, electronic devices such as MP4, mobile phones, or tablet computers, so that the electronic devices have a better sound quality playing effect.

The height difference between the first portion 112 and the second portion 114 can be formed by manufacturing errors of components of the electronic device, so that the acoustic structure 100 of the present embodiment can make full use of the manufacturing errors of the components, and adverse effects caused by the manufacturing errors of the components are eliminated.

Specifically, the leak hole 120 may invert the phase of the sound wave in the sound cavity 118, which reduces the resonant frequency of the sound structure 100, thereby improving the bass effect of the sound structure 100, and solving the problem of poor bass effect of the conventional sound structure 100, in addition, the phase of the sound wave at the back of the diaphragm of the speaker 106 is the same as the phase of the sound wave at the front of the diaphragm of the speaker 106 after passing through the leak hole 120, and the sound wave at the back of the speaker 106 is superposed with the sound wave at the front of the speaker 106, which improves the radiation efficiency of the sound wave, and therefore, the leak hole 120 is substantially an inverted hole of the sound structure 100.

Further, the leakage hole 120 includes an air inlet 122 and an air outlet 124. Since there is a time difference between the air near the back of the diaphragm of the speaker 106 reaching the air inlet 122 of the leakage hole 120, when the air near the back of the diaphragm of the speaker 106 reaches the air inlet 122 of the leakage hole 120, the diaphragm of the speaker 106 may move forward to attract the air near the air inlet 122 of the leakage hole 120, and the air near the air inlet 122 of the leakage hole 120 is prevented from passing through the leakage hole 120 and then passing from the air outlet 124 of the leakage hole 120 to the outside of the acoustic structure 100.

When the diaphragm of the speaker 106 is moved forward again by vibrating for one cycle again, air in the vicinity of the air inlet 122 of the leakage hole 120 passes through the leakage hole 120, and passes from the air outlet 124 of the leakage hole 120 to the outside of the acoustic structure 100. Therefore, the phase of the sound wave at the back of the speaker 106 is inverted due to the time difference between the arrival of air from the back of the diaphragm of the speaker 106 to the air inlet 122 of the leak hole 120.

Note that the front of speaker 106 faces the exterior of sound structure 100.

In some embodiments, the first portion 112 includes a first face 126 positioned within the acoustic cavity 118, the second portion 114 includes a second face 128 parallel to the first face 126, the first face 126 and the second face 128 form a height difference, the first component 108 includes a transition face 130 connecting the first face 126 and the second face 128, and the transition face 130 is disposed obliquely with respect to the first face 126.

Thus, the transition surface 130 is disposed obliquely, so that stress at the joint of the first portion 112 and the second portion 114 can be reduced, and defects such as fracture and the like at the joint of the first portion 112 and the second portion 114 in the manufacturing process can be avoided, thereby reducing the fraction defective of the first component 108.

In some embodiments, the first member 108 has a flat plate shape, the second member 110 has a frame shape with one end open and one end sealed, and the open end of the second member 110 is connected to the first member 108.

In this manner, the connection between the first component 108 and the second component 110 is facilitated, facilitating the manufacture of the acoustic structure 100.

In some embodiments, the second assembly 110 includes a mounting plate 132 opposite the first assembly 108, and the speaker 106 is disposed on the mounting plate 132.

Thus, the speaker 106 and the leakage hole 120 are respectively disposed on different components of the box 102, so that the space of the box 102 can be fully utilized, the volume of the sound structure 100 can be reduced while the sound effect quality of the sound structure 100 is improved, and the electronic device using the sound structure 100 is miniaturized.

In some embodiments, the mounting plate 132 defines sound holes 134, and the speaker 106 is disposed corresponding to the sound holes 134.

In this manner, speaker 106 may be exposed through sound outlet 134, and sound outlet 134 may allow sound emitted by speaker 106 to pass to the exterior of sound structure 100.

In the present example, the number of sound outlet holes 134 is single, and the speaker 106 corresponds to the single sound outlet hole 134.

It is understood that in other embodiments, the number of the sound outlet holes 134 may be two or more, and other numbers according to the actual situation. Two or more sound outlet holes 134 are arranged at intervals, and the loudspeaker 106 corresponds to a plurality of sound outlet holes 134.

In some embodiments, the covering element 104 is bent and includes a first connecting portion 136 and a second connecting portion 138 connected to the first connecting portion 136, the first connecting portion 136 is connected to the first portion 112 in a sealing manner, and the second connecting portion 138 is connected to the second portion 114 in a sealing manner. Thus, the leakage hole 120 is easily formed.

In some embodiments, cover 104 is located within sound cavity 118.

Thus, the structure of the acoustic structure 100 is more compact, which further contributes to miniaturization of the acoustic structure 100.

In some embodiments, the acoustic structure 100 includes a seal 140, the seal 140 sealing a gap between the first component 108 and the second component 110.

Thus, since the sealing member 140 seals the gap between the first component 108 and the second component 110, the sound waves in the sound cavity 118 are prevented from leaking out from the gap between the first component 108 and the second component 110 to cause noise, thereby improving the sound effect quality of the sound structure 100 playing sound.

Since the compression foam has a certain flexibility, when the first member 108 and the second member 110 are assembled, the compression foam may be fixed on the first member 108 or the second member 110, and then the first member 108 and the second member 110 are assembled and pressed with force, so that the compression foam may be compressed to seal the gap between the first member 108 and the second member 110.

In some embodiments, the sealing member 140 is made of a gel.

In this way, the glue may also seal the gap between the first component 108 and the second component 110, such as glue like silicone or UV glue.

In certain embodiments, the seal 140 is a tacky seal 140. For example, adhesive may be disposed on opposing surfaces of the seal 140 to render the seal 140 tacky. In another example, the sealing member 140 is a sealant.

Thus, after the first component 108 and the second component 110 are assembled, the adhesive sealing member 140 can fixedly connect the first component 108 and the second component 110 while sealing the gap between the first component 108 and the second component 110, so as to prevent the first component 108 and the second component 110 from loosening to affect the sound effect quality of the sound structure 100, and also save the subsequent process of fixing the first component 108 and the second component 110.

The electronic device according to the embodiment of the present invention includes the acoustic structure 100 according to any of the above embodiments.

In the electronic device according to the embodiment of the invention, since the space 116 formed by the height difference between the first portion 112 and the second portion 114 and the covering member 104 form the leakage hole 120, it is possible to avoid the volume of the sound cavity 118 occupied by the leakage pipe due to the independent leakage pipe being arranged in the sound cavity 118, so that the sound effect quality of the sound structure 100 is improved.

In some embodiments, the electronic device is a cell phone or a tablet computer.

In one example, the mounting plate 132 of the second component 110 of the acoustic structure 100 may be part of an outer cover of an electronic device in which the first component 108 of the acoustic structure 100 is located. Therefore, when the cover of the electronic device is assembled to the electronic device, the acoustic structure 100 can be formed, and the manufacturing process of the electronic device can be simplified.

In another example, the audio structure 100 may be separately formed and mounted to the electronic device, for example, when the audio structure 100 is mounted, the mounting plate 132 of the second assembly 110 contacts the inner surface of the outer cover of the electronic device.

In the description herein, references to the description of the terms "one embodiment," certain embodiments, "" an illustrative embodiment, "an example," "a specific example," or "some examples," etc., mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, schematic representations of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

While embodiments of the present invention have been shown and described, it will be understood by those of ordinary skill in the art that: various changes, modifications, substitutions and alterations can be made to the embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. An acoustic structure, comprising: a case, the case comprising: a first assembly including a first portion and a second portion connected to form a height difference, the height difference being formed for a manufacturing error;

the first component and the second component are connected to form a sound cavity;

a cover sealingly coupled to the first component and defining, in cooperation with the first portion and the second portion, the space as an inverter orifice communicating the acoustic chamber and an exterior of the acoustic structure, the inverter orifice extending along a length of the acoustic structure; and

a speaker disposed in the acoustic cavity.

2. The acoustic structure of claim 1, wherein the first portion includes a first face located within the acoustic cavity, the second portion includes a second face parallel to the first face, the first face and the second face forming the height difference, the first component includes a transition face connecting the first face and the second face, the transition face being disposed obliquely with respect to the first face.

3. An acoustic structure according to claim 1, wherein said first member has a flat plate shape, said second member has a frame shape with one end open and one end sealed, and an open end of said second member is connected to said first member.

4. An acoustic structure, according to claim 3, characterized in that said second assembly comprises a mounting plate opposite to said first assembly, said loudspeaker being disposed on said mounting plate.

5. The acoustic structure of claim 4, wherein said mounting plate defines sound holes, and said speakers are positioned in correspondence with said sound holes.

6. The sound structure of claim 1, wherein the cover member is bent and includes a first connecting portion and a second connecting portion connected to the first connecting portion, the first connecting portion being sealingly connected to the first portion, and the second connecting portion being sealingly connected to the second portion.

7. An acoustic structure, as set forth in claim 1, characterized in that said cover is located within said acoustic cavity.

8. The acoustic structure of claim 1, wherein the acoustic structure includes a seal that seals a gap between the first component and the second component.

9. An acoustic structure, as claimed in claim 8, characterized in that said sealing is a compressed foam.

10. An acoustic structure, according to claim 8, characterized in that said sealing means is made of a gel.

11. An acoustic structure, as claimed in claim 8, characterized in that said seal is a sticky seal.

12. An electronic device comprising the acoustic structure according to any one of claims 1 to 11.

13. The electronic device of claim 12, wherein the electronic device is a cell phone or a tablet computer.