阅读说明：本技术 一种移动终端 (Mobile terminal ) 是由 张世虎 高军科 朱丽君 马景球 贺理成 于 2019-09-25 设计创作，主要内容包括：本发明提供一种移动终端,包括框体、电路板、导音结构及与所述电路板相连接的麦克风,所述导音结构形成有导音通道,所述导音通道包括第一开口及第二开口,所述第一开口朝向所述麦克风,所述第二开口朝向所述框体,所述框体包括朝向所述导音结构的第一框体部及连接所述第一框体部的第二框体部,所述第一框体部密封所述第二开口,且所述第一框体部的厚度小于所述第二框体部的厚度。本发明提供的技术方案解决了现有的移动终端上开孔过多而导致移动终端防水、防尘性能差的问题。(The invention provides a mobile terminal which comprises a frame body, a circuit board, a sound guide structure and a microphone connected with the circuit board, wherein a sound guide channel is formed on the sound guide structure and comprises a first opening and a second opening, the first opening faces the microphone, the second opening faces the frame body, the frame body comprises a first frame body part facing the sound guide structure and a second frame body part connected with the first frame body part, the first frame body part seals the second opening, and the thickness of the first frame body part is smaller than that of the second frame body part. The technical scheme provided by the invention solves the problem that the existing mobile terminal has poor waterproof and dustproof performance due to excessive holes.)

1. The utility model provides a mobile terminal, its characterized in that, including framework, circuit board, sound guide structure and with the microphone that the circuit board is connected, sound guide structure is formed with sound guide channel, sound guide channel includes first opening and second opening, first opening orientation the microphone, the second opening orientation the framework, the framework includes the orientation first framework portion of sound guide structure and connects the second framework portion of first framework portion, first framework portion seals the second opening, just the thickness of first framework portion is less than the thickness of second framework portion.

2. The mobile terminal according to claim 1, wherein the first housing portion includes a first region facing the second opening and a second region other than the first region, and a thickness of the first region is smaller than a thickness of the second region.

3. The mobile terminal of claim 1, wherein the first housing portion is made of a nanoporous material.

4. The mobile terminal of claim 1, wherein an aperture of the second opening is larger than an aperture of the first opening.

5. The mobile terminal of claim 1, wherein the circuit board is connected to the sound guide structure, a through hole facing the first opening is formed in the circuit board, and the microphone is disposed on a surface of the circuit board facing away from the sound guide structure and facing the through hole.

6. The mobile terminal of claim 1, further comprising a sound guide foam sandwiched between the circuit board and the sound guide structure.

7. The mobile terminal of claim 1, wherein the thickness of the first housing portion is less than one-half of the thickness of the second housing portion.

8. The mobile terminal of claim 1, wherein the aperture of the second opening is larger than one-half of a dimension of the first housing portion in a thickness direction of the mobile terminal.

9. The mobile terminal of claim 1, wherein the sound guide structure comprises a first sound guide structure and a second sound guide structure that are opposite to each other, the first opening is formed in the first sound guide structure, and the second opening is formed in the second sound guide structure; the first sound guide structure is a silica gel sleeve, and the second sound guide structure is foam cotton rubber.

Technical Field

The invention relates to the technical field of communication, in particular to a mobile terminal.

Background

With the development of mobile terminal products, the requirement for the appearance of the mobile terminal to be attractive is higher and higher while the mobile terminal is required to be lighter and thinner and the screen is larger. At present, the mobile terminal is usually provided with holes such as a power line connecting hole, a microphone hole and a card seat top pinhole, so that the holes on the mobile terminal are too many, and the problems of poor waterproof and dustproof performances of the mobile terminal are caused.

Disclosure of Invention

The embodiment of the invention provides a mobile terminal, which aims to solve the problems that the existing mobile terminal is too much in holes and poor in waterproof and dustproof performance.

In order to solve the above technical problem, an embodiment of the present invention provides a mobile terminal, including a frame, a circuit board, a sound guiding structure, and a microphone connected to the circuit board, where the sound guiding structure is formed with a sound guiding channel, the sound guiding channel includes a first opening and a second opening, the first opening faces the microphone, the second opening faces the frame, the frame includes a first frame portion facing the sound guiding structure and a second frame portion connected to the first frame portion, the first frame portion seals the second opening, and a thickness of the first frame portion is smaller than a thickness of the second frame portion.

In the technical solution provided by the embodiment of the present invention, the microphone faces the first opening of the sound guide channel, and the second opening of the sound guide channel is sealed by the first frame part. Therefore, the design of the microphone hole is cancelled on the frame body, the design of the hole on the frame body of the mobile terminal can be reduced, and the waterproof and dustproof performances of the mobile terminal are improved.

Drawings

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

Fig. 1 is a partial structural diagram of a mobile terminal according to an embodiment of the present invention.

Detailed Description

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

Referring to fig. 1, the mobile terminal includes a frame 10, a circuit board 20, a sound guide structure 30 and a microphone 40 connected to the circuit board 20, the sound guide structure 30 is formed with a sound guide channel 300, the sound guide channel 300 includes a first opening 301 and a second opening 302, the first opening 301 faces the microphone 40, the second opening 302 faces the frame 10, the frame 10 includes a first frame portion 12 facing the sound guide structure 30 and a second frame portion 11 connected to the first frame portion 12, the first frame portion 12 seals the second opening 302, and a thickness of the first frame portion 12 is smaller than a thickness of the second frame portion 11.

The second housing portion 11 may refer to a portion of the housing 10 other than the first housing portion 12; alternatively, the second frame portion 11 may be a portion of the frame 10 that is connected to only the first frame portion 12, and may be a portion of the frame 10 that surrounds the first frame portion 12 when the first frame portion 12 is circular.

In the embodiment of the present invention, the thickness of the first frame portion 12 is smaller than the thickness of the second frame portion 11, so that the first frame portion 12 is more likely to vibrate, and further, the external sound is transmitted to the first frame portion 12 through the air medium, and the vibration of the first frame portion 12 with a smaller thickness can be driven, and the vibration of the first frame portion 12 is transmitted to the air medium in the sound guide channel 300 and then transmitted to the microphone 40 through the air medium in the sound guide channel 300, so as to implement sound collection of the microphone 40.

In the technical solution provided by the embodiment of the present invention, the microphone 40 faces the first opening 301 of the sound guiding channel 300, and the second opening 302 of the sound guiding channel 300 is sealed by the first housing portion 12. Therefore, the design of a microphone hole is cancelled on the frame body 10, so that the design of an opening hole on the mobile terminal frame body 10 can be reduced, and the waterproof and dustproof performances of the mobile terminal are improved; in addition, since the frame 10 closes the second opening 302 of the sound guiding channel 300, the user can be prevented from damaging the microphone 40 due to the needle being inserted into the sound guiding channel 300 by mistake, and the user can be prevented from blocking the sound guiding channel 300 by holding the mobile terminal, so that the microphone 40 cannot receive sound, thereby better ensuring the device safety and normal use of the microphone 40.

In the case that the mobile terminal is provided with a middle frame, the frame 10 may refer to the middle frame of the mobile terminal, the first frame portion 12 is a part of the middle frame, and the second opening 302 of the sound guide channel 300 is closed by the middle frame; alternatively, if the mobile terminal is designed to integrate the battery cover with the mobile terminal, the housing 10 may be the battery cover of the mobile terminal, the first housing 12 is a part of the battery cover, and the second opening 302 of the sound guide channel 300 is closed by the battery cover.

In addition, the first opening 301 of the sound guiding channel 300 faces the microphone 40, the microphone 40 may be sandwiched between the circuit board 20 and the sound guiding structure 30, and the microphone 40 may be disposed on a side of the circuit board 20 facing the sound guiding structure 30, for example, the first opening 301 may be closed by the microphone 40, so that the sound can be completely received by the microphone 40 after entering the sound guiding channel 300, thereby avoiding sound leakage and ensuring the sound receiving effect of the microphone 40.

Or, the circuit board 20 may be in contact with the sound guiding structure 30, the microphone 40 is disposed on a side of the circuit board 20 opposite to the sound guiding structure 30, and the circuit board 20 is provided with a through hole 201 for conducting the sound guiding structure 30, that is, the second opening 302 is communicated with the through hole 201, so that sound enters the sound guiding channel 300 and then is received by the microphone 40 through the through hole 201 on the circuit board 20, thereby ensuring the sound receiving effect of the microphone 40.

In the embodiment of the present invention, the frame 10 includes a second frame portion 11 and a first frame portion 12, and the first frame portion 12 may be in contact with the sound guide structure 30 and seal the second opening 302. Alternatively, the first frame portion 12 may be an additional component, and by assembling with the first frame portion 11 to form the complete frame 10, the first frame portion 12 may be designed to have a different material, thickness, and other properties from the second frame portion 11 so as to close the second opening 302, and simultaneously play a role of conducting sound, so that the thickness or hardness required by other portions of the frame 10 is not affected, so as to ensure the protection effect of the frame 10 on the mobile terminal.

For example, the first housing portion 12 may be made of a nano-porous material, and the second housing portion 11 may be made of a metal or plastic material. Understandably, the aperture of the nano-porous material is nano-scale and is obviously smaller than the particle size of the micro-dust and the particle size of water molecules, so that the first frame body part 12 of the nano-porous material can have better waterproof and dustproof effects; external sound can be transmitted through the nano-holes of the first housing portion 12 into the sound guide channel 300 for conduction to the microphone 40.

The thickness of the first frame portion 12 is smaller than that of the second frame portion 11. It is understood that the first housing portion 12 contacts the sound guide structure 30 and closes the second opening 302, the first housing portion 12 faces the sound guide channel 300, and the external sound can be generated only by vibrating the first housing portion 12, so as to enable the microphone 40 to pick up sound. The thickness of the first housing 12 is smaller than that of the second housing 11, so that when external sound is transmitted to the first housing 12, the first housing 12 can be kept thin to vibrate, and the vibration of the first housing 12 is transmitted to the sound guide channel 300 and the microphone 40, so that the microphone 40 can receive the external sound. Thus, the thickness of the second frame part 11 can be ensured, the extrusion and damage of the external force to the internal device of the mobile terminal caused by the insufficient thickness of the frame 10 can be avoided, and the small thickness of the first frame part 12 on the frame 10 can be ensured, so that the sound receiving effect of the microphone 40 can be ensured.

Alternatively, the thickness of the first frame portion 12 is less than one-half of the thickness of the second frame portion 11. In this way, the thickness of the first frame portion 12 is made to be significantly smaller than that of the second frame portion 11, so as to ensure that the first frame portion 12 can vibrate when receiving external sound, thereby ensuring the sound-collecting effect of the microphone 40; the second frame portion 11 has a larger thickness than the first frame portion 12, so that the second frame portion 11 can support and fix the first frame portion 12.

With reference to fig. 1, the first frame portion 12 may include a first region 121 facing the second opening 302 and a second region 122 excluding the first region 121, and a thickness of the first region 121 is smaller than a thickness of the second region 122. That is, the thickness of the first frame portion 12 is not uniformly set, and the first frame portion 12 has the first region 121 and the second region 122 having different thicknesses. For example, the first frame portion 12 has a circular structure, the first region 121 is a portion including the center of the circle, and the second region 122 is a portion other than the first region 121, so that the thickness of the first frame portion 12 gradually increases from the center of the circle to the edge. It can be understood that the first region 121 of the first housing portion 12 seals the second opening 302, and the thickness of the first region 121 is designed to be thinner, so that when external sound is transmitted to the first region 121, the thinner first region 121 can be ensured to vibrate, and further, the vibration of the first region 121 can be transmitted to the sound guide channel 300 and the microphone 40, so that the microphone 40 can be ensured to receive external sound.

Alternatively, the aperture of the second opening 302 is larger than one-half of the size of the first housing portion 12 in the thickness direction of the mobile terminal. Thus, the opening size of the second opening 302 is not designed to be too small, so as to ensure that the vibration of the first housing portion 12 can be conducted to the sound guide channel 300 through the second opening 302, and the sound receiving effect of the sound guide channel 300 is ensured.

In addition, the aperture of the second opening 302 of the sound guide channel 300 may be larger than that of the first opening 301. For example, the aperture of the sound leading channel 300 may be gradually reduced from the second opening 302 to the first opening 301. In this way, the second opening 302 is closer to the frame 10, and the aperture of the second opening 302 is larger, so that the sound guide channel 300 can have a larger sound receiving aperture, and can ensure that the vibration of the frame 10 is received in a larger range; the first opening 301 is close to the microphone 40, and the aperture of the first opening 301 is small, so that the vibration of the air in the sound guide channel 300 can be more intensively conducted to the microphone 40, and the sound receiving effect of the microphone 40 is ensured.

In the embodiment of the present invention, the circuit board 20 is connected to the sound guiding structure 30, the circuit board 20 is provided with a through hole 201 facing the first opening 301, and the microphone 40 is disposed on a surface of the circuit board 20 opposite to the sound guiding structure 30 and facing the through hole 201. For example, the circuit board 20 is in contact with the sound guiding structure 30, the sound guiding structure 30 is disposed below the circuit board 20, the microphone 40 is disposed above the circuit board 20, and the circuit board 20 is provided with a through hole 201 facing the first opening 301, the through hole 201 is communicated with the sound guiding channel 300, so that the vibration of the air in the sound guiding channel 300 can be conducted to the through hole 201, and then conducted to the microphone 40 above the through hole 201, so as to ensure that the microphone 40 can receive the external sound. The microphone 40 is disposed on a side of the circuit board 20 opposite to the sound guiding structure 30, so that the side of the circuit board 20 opposite to the sound guiding structure 30 has more space for disposing other electronic devices.

Or, a sound guiding foam 50 is further interposed between the circuit board 20 and the sound guiding structure 30. For example, the microphone 40 may be disposed on a side of the circuit board 20 opposite to the sound guide foam 50 and above the through hole 201, and the circuit board 20 is provided with the through hole 201; alternatively, the microphone 40 may be interposed between the sound guide foam 50 and the circuit board 20, and the circuit board 20 does not need to be provided with the through hole 201. Lead cotton 50's of sound bubble setting, can play better conduction effect to sound vibration to, lead and do not set up the through-hole on the cotton 50 of sound bubble, can further prevent that dust, aqueous vapor etc. from getting into microphone 40, and then in order to play better waterproof, dustproof effect to microphone 40.

In the embodiment of the present invention, one end of the sound guide structure 30 forming the second opening 302 is bonded to the frame 10. By such a connection method, the sound guide structure 30 and the housing 10 can be more stably connected.

Referring to fig. 1, the sound guiding structure 30 may include a first sound guiding structure 31 and a second sound guiding structure 32 that are opposite to each other, wherein a first opening 301 is formed in the first sound guiding structure 31, and a second opening 302 is formed in the second sound guiding structure 32; the first sound guide structure 31 is a silica gel sleeve, and the second sound guide structure 32 is foam cotton rubber. That is to say, the sound guiding channel 300 passes through the first sound guiding structure 31 and the second sound guiding structure 32, the second sound guiding structure 32 is made of foam rubber, one side of the foam rubber is bonded to the frame body 10, the other side of the foam rubber is bonded to the silica gel sleeve, and the silica gel sleeve is fixed in the frame body 10 through the viscosity of the foam rubber, so that the installation stability of the silica gel sleeve in the frame body 10 is ensured. In addition, the foam rubber and the silica gel sleeve have certain elasticity, so that when a user extrudes the frame body 10 or the mobile terminal falls, a certain buffering effect is generated on the external pressure, so that electronic devices such as the circuit board 20 and the microphone 40 in the mobile terminal frame body 10 are prevented from being damaged, and the electronic devices in the mobile terminal are protected.

In the embodiment of the invention, the mobile terminal can be a mobile phone, a tablet computer, an electronic book reader, an MP3 player, an MP4 player, a digital camera, a laptop portable computer, a vehicle-mounted computer, a desktop computer, an intelligent household appliance, a wearable device and the like.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.