CN211378246U

CN211378246U - Electronic device

Info

Publication number: CN211378246U
Application number: CN202020341079.5U
Authority: CN
Inventors: 王中涛
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-03-17
Filing date: 2020-03-17
Publication date: 2020-08-28
Anticipated expiration: 2030-03-17

Abstract

The utility model discloses an electronic equipment, include: a casing having a sound transmission hole penetrating the casing in a thickness direction of the casing; the electroacoustic component comprises a fixing piece and a piezoelectric ceramic piece, the fixing piece is arranged on the inner side of the shell, the fixing piece is opposite to the shell and connected with the shell so as to seal one end of the sound transmission hole, one end of the piezoelectric ceramic piece is connected with the fixing piece, and the other end of the piezoelectric ceramic piece extends into the sound transmission hole; and the sound processing circuit is connected with the piezoelectric ceramic piece. According to the utility model discloses an electronic equipment, the one end in the casing shutoff biography sound hole is established to electroacoustic component's mounting in order to form the audio frequency passageway, can reduce the length of audio frequency passageway relatively, is convenient for clear up the deposition in the audio frequency passageway. In addition, when the electroacoustic component is assembled with the shell, the joint of the fixing piece and the shell is only required to be sealed, the leakage risk is reduced, the sound transmission quality is ensured, meanwhile, the dustproof water drainage performance is improved, and the structure of the electronic equipment can be simplified.

Description

Electronic device

Technical Field

The utility model belongs to the technical field of the electronic equipment technique and specifically relates to an electronic equipment is related to.

Background

In the correlation technique, the audio frequency passageway of the electroacoustic subassembly of electronic equipment is longer, and easy deposition is difficult to the clearance, leads to the audio frequency effect relatively poor, and in addition, the audio frequency passageway waterproof dirt resistance of electroacoustic subassembly is relatively poor.

SUMMERY OF THE UTILITY MODEL

The utility model provides an electronic equipment, electronic equipment audio frequency passageway is short, and the deposition is cleared up easily, and waterproof dustproof performance is good, and simple structure.

According to the utility model discloses electronic equipment, include: a housing having a sound transmission hole penetrating through the housing in a thickness direction of the housing; the electroacoustic component comprises a fixing piece and a piezoelectric ceramic piece, the fixing piece is arranged on the inner side of the shell, the fixing piece is opposite to the shell and connected with the shell so as to seal one end of the sound transmission hole, one end of the piezoelectric ceramic piece is connected with the fixing piece, and the other end of the piezoelectric ceramic piece extends into the sound transmission hole; and the sound processing circuit is connected with the piezoelectric ceramic piece.

According to the utility model discloses electronic equipment, through set up the biography sound hole on the casing, the mounting of electroacoustic component is established in the one end of casing shutoff biography sound hole in order to form the audio frequency passageway, can reduce the length of audio frequency passageway relatively, is convenient for clear up the deposition in the audio frequency passageway. In addition, when the electroacoustic component is assembled with the shell, the joint of the fixing piece and the shell is only required to be sealed, the leakage risk is reduced, the sound transmission quality is ensured, meanwhile, the dustproof water drainage performance is improved, and the structure of the electronic equipment can be simplified.

According to the utility model discloses a some embodiments in the inboard direction to the outside of casing, the sound transmission hole includes first section and second section in proper order, the cross-sectional area of first section is greater than the cross-sectional area of second section, piezoceramics spare's the other end extends to in the first section.

In some embodiments of the invention, the central axes of the first and second sections coincide.

According to some embodiments of the invention, the mounting is provided with a seal between the housing and the mounting.

In some embodiments of the present invention, the sealing member is a sealing foam.

In some embodiments of the present invention, the fixing member and the sealing foam are bonded together and the sealing foam and the housing are bonded together.

According to some embodiments of the invention, the piezo ceramic element extends in a straight line.

According to some embodiments of the invention, the electroacoustic component is a microphone component.

According to some embodiments of the invention, the electroacoustic component is a loudspeaker component.

According to some embodiments of the invention, the sound processing circuit is provided within the mounting.

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 diagram of a partial structure of an electronic device according to an embodiment of the present invention;

fig. 2 is a perspective view of an electronic device according to an embodiment of the present invention.

Reference numerals:

the electronic device 100 is provided with a display device,

the housing 1, the sound transmission hole 11, the first section 111, the second section 112,

the electroacoustic assembly 2, the fixing member 21, the piezoelectric ceramic member 22,

and a seal 3.

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 drawings are exemplary only for the purpose of explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "center", "inside", "outside", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

The electronic device 100 according to an embodiment of the present invention is described below with reference to the drawings.

As shown in fig. 1, an electronic device 100 according to an embodiment of the present invention includes: a housing 1, an electro-acoustic assembly 2 and a sound processing circuit.

Specifically, the casing 1 has a sound transmission hole 11 penetrating the casing 1 in the thickness direction of the casing 1, the electroacoustic component 2 includes a fixing member 21 and a piezoelectric ceramic member 22, the fixing member 21 is disposed inside the casing 1, the fixing member 21 is opposite to the casing 1 and connected to close one end of the sound transmission hole 11, and the fixing member 21 and the inner wall of the sound transmission hole 11 together constitute an audio channel. One end of the piezo ceramic 22 is connected to the fixing member 21, and the other end of the piezo ceramic 22 extends into the sound transmission hole 11. The piezoelectric ceramic 22 is a piezoelectric ceramic 22 subjected to polarization treatment. The piezo-ceramic element 22 has a piezoelectric effect such as a positive piezoelectric effect (converting a mechanical signal into an electrical signal) and a reverse piezoelectric effect (converting an electrical signal into a mechanical signal).

The sound processing circuit is connected with the piezoelectric ceramic piece 22, and the sound processing circuit can process signals and better realize the transmission of the signals.

Optionally, the electro-acoustic assembly 2 is a microphone assembly or a speaker assembly, and when the electro-acoustic assembly 2 is a microphone assembly, the piezoelectric effect of the piezoelectric ceramic element 22 is adopted; when the electro-acoustic assembly 2 is a speaker assembly, the inverse piezoelectric effect of the piezoelectric ceramic 22 is used.

The piezoelectric ceramic 22 is configured as a cantilever structure, when the electroacoustic component 2 is a microphone component, and when there is sound outside, the piezoelectric ceramic 22 vibrates with air, so as to generate an electrical signal, and the electrical signal is processed by a subsequent power amplifier, filtering, etc. of the sound processing circuit to form a sound signal, so as to sense the outside sound. When the electroacoustic component 2 is a speaker component, an electric signal is applied to the piezoelectric ceramic 22 through a sound processing circuit, and the piezoelectric ceramic 22 vibrates, thereby transmitting sound to the outside.

In this application, adopt piezoceramics piece 22 and utilize piezoceramics piece 22's positive piezoelectric effect to realize microphone subassembly and inverse piezoelectric effect and realize speaker subassembly, 2 spare parts of electroacoustic subassembly are less, and the length of audio frequency passageway is the distance of mounting 21 to casing 1 surface, and the audio frequency passageway is shorter relatively, and the deposition is cleared up easily, can guarantee electronic equipment 100's tone quality. Moreover, in the present application, the electroacoustic component 2 itself has fewer parts and the electroacoustic component 2 only needs to be sealed between the fixing member 21 and the housing 1 when being assembled in the housing 1 of the electronic device 100, the sealing position is less, the leakage risk is small, thereby ensuring the quality of sound transmission and improving the dustproof water discharge performance.

According to the utility model discloses electronic equipment 100, through set up the biography sound hole 11 on casing 1, the mounting 21 of electroacoustic component 2 establishes the one end of shutoff biography sound hole 11 in casing 1 in order to form the audio frequency passageway, can reduce the length of audio frequency passageway relatively, is convenient for clear up the deposition in the audio frequency passageway. In addition, when the electroacoustic component 2 is assembled with the housing 1, only the joint of the fixing member 21 and the housing 1 needs to be sealed, so that the leakage risk is reduced, the sound transmission quality is ensured, meanwhile, the dustproof water drainage performance is improved, and the structure of the electronic device 100 can be simplified.

In some embodiments of the present invention, as shown in fig. 1, in the direction from the inside to the outside of the housing 1, the sound transmission hole 11 sequentially includes a first section 111 and a second section 112, the cross-sectional area of the first section 111 is larger than that of the second section 112, and the other end of the piezoelectric ceramic element 22 extends into the first section 111. Therefore, the piezoelectric ceramic piece 22 can be ensured to have enough space vibration, the inlet area of the sound transmission hole 11 facing the outer side of the shell 1 can be reduced, and the waterproof and dustproof performance is further improved.

Further, as shown in fig. 1, the central axes of the first segment 111 and the second segment 112 coincide. Thereby facilitating the transmission of external sound into the sound transmission hole 11 so that the piezo-ceramic 22 vibrates to convert a mechanical signal into an electrical signal, and facilitating the transmission of sound generated by the vibration of the piezo-ceramic 22 to the outside of the housing 1.

In some embodiments of the present invention, as shown in fig. 1, a sealing member 3 is disposed between the fixing member 21 and the housing 1. Therefore, the sealing reliability between the fixing piece 21 and the shell 1 can be improved, the sound transmission quality is ensured, and meanwhile, the dustproof water drainage performance is improved. Optionally, the seal 3 is a sealing foam. Of course, the present invention is not limited to this, and the sealing member 3 may be a double-sided tape or the like.

Further, the fixing member 21 and the sealing foam, and the sealing foam and the housing 1 are all adhesively connected. Therefore, the reliability of fixing the sealing element 3 can be improved, the reliability of sealing between the fixing element 21 and the shell 1 is improved, the sound transmission quality is ensured, and meanwhile, the dustproof water drainage performance is improved.

In some embodiments of the present invention, the piezo ceramic 22 extends in a straight line, as shown in fig. 1. Thereby facilitating vibration of the piezo-ceramic element 22 and allowing better conversion between mechanical and electrical signals.

In some embodiments of the present invention, the electroacoustic component 2 is a microphone component. Of course, the present invention is not limited thereto, and the electroacoustic assembly 2 may also be a speaker assembly. When the electroacoustic component 2 is a microphone component, the piezoelectric effect of the piezoelectric ceramic element 22 is adopted; when the electro-acoustic assembly 2 is a speaker assembly, the inverse piezoelectric effect of the piezoelectric ceramic 22 is used. The piezoelectric ceramic 22 is configured as a cantilever structure, when the electroacoustic component 2 is a microphone component, and when there is sound outside, the piezoelectric ceramic 22 vibrates with air, so as to generate an electrical signal, and the electrical signal is processed by a subsequent power amplifier, filtering, etc. of the sound processing circuit to form a sound signal, so as to sense the outside sound. When the electroacoustic component 2 is a speaker component, an electric signal is applied to the piezoelectric ceramic 22 through a sound processing circuit, and the piezoelectric ceramic 22 vibrates, thereby transmitting sound to the outside.

In some embodiments of the present invention, the sound processing circuit is disposed in the fixing member 21. The structure of the electronic device 100 can be made more compact and reasonable. Of course, the present invention is not limited thereto, and the sound processing circuit may be provided on the main board of the electronic device 100.

By way of example, the electronic device 100 may be any of various types of computer system devices (one example of which is shown in FIG. 2) that are mobile or portable and that perform wireless communications. Specifically, the electronic device 100 may be a mobile phone or smart phone (e.g., an iPhone (TM) based, Android (TM) based phone), a Portable gaming device (e.g., a Nintendo DS (TM), a PlayStation Portable (TM), a Game Advance (TM), an iPhone (TM)), a laptop, a PDA, a Portable Internet device, a music player and data storage device, other handheld devices and headsets such as watches, in-ear headphones, pendant, headphones, etc., and the electronic device 100 may also be other wearable devices (e.g., a Head Mounted Device (HMD) such as electronic glasses, electronic clothing, electronic bracelets, electronic necklaces, electronic tattoos, electronic devices, or smart watches).

The electronic device 100 may also be any of a number of electronic devices including, but not limited to, cellular phones, smart phones, other wireless communication devices, personal digital assistants, audio players, other media players, music recorders, video recorders, cameras, other media recorders, radios, medical devices, vehicle transportation equipment, calculators, programmable remote controllers, pagers, laptop computers, desktop computers, printers, netbook computers, Personal Digital Assistants (PDAs), Portable Multimedia Players (PMPs), moving Picture experts group (MPEG-1 or MPEG-2) Audio layer (MP3) players, portable medical devices, and digital cameras, and combinations thereof.

In some cases, electronic device 100 may perform multiple functions (e.g., playing music, displaying videos, storing pictures, and receiving and sending telephone calls). If desired, the electronic device 100 may be a portable device such as a cellular telephone, media player, other handheld device, wrist watch device, pendant device, earpiece device, or other compact portable device.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.

In the description herein, references to the description of the term "one embodiment," "some embodiments," "an illustrative embodiment," "an example," "a specific example," or "some examples" or the like 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 present invention. In this specification, the schematic representations of the terms used above 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 electronic device, comprising:

a housing having a sound transmission hole penetrating through the housing in a thickness direction of the housing;

the electroacoustic component comprises a fixing piece and a piezoelectric ceramic piece, the fixing piece is arranged on the inner side of the shell, the fixing piece is opposite to the shell and connected with the shell so as to seal one end of the sound transmission hole, one end of the piezoelectric ceramic piece is connected with the fixing piece, and the other end of the piezoelectric ceramic piece extends into the sound transmission hole;

and the sound processing circuit is connected with the piezoelectric ceramic piece.

2. The electronic device according to claim 1, wherein the sound transmission hole includes a first section and a second section in this order in a direction from an inner side to an outer side of the housing, a cross-sectional area of the first section is larger than a cross-sectional area of the second section, and the other end of the piezoelectric ceramic piece extends into the first section.

3. The electronic device of claim 2, wherein central axes of the first segment and the second segment coincide.

4. The electronic device of claim 1, wherein a seal is disposed between the fixture and the housing.

5. The electronic device of claim 4, wherein the seal is a sealing foam.

6. The electronic device of claim 5, wherein the fixing member and the sealing foam and the housing are all adhesively connected.

7. The electronic device of claim 1, wherein the piezo ceramic extends in a straight line.

8. The electronic device of claim 1, wherein the electro-acoustic assembly is a microphone assembly.

9. The electronic device of claim 1, wherein the electro-acoustic assembly is a speaker assembly.

10. The electronic device of claim 1, wherein the sound processing circuit is disposed within the fixture.