Misinsertion prevention structure for MIC hole

Abstract

The utility model relates to an MIC hole misplug prevention structure. The MIC hole misplug prevention structure comprises an outer frame, a PCB, an MIC device, a support body and a dustproof net device. The outer frame is assembled on the side face of the supporting body, the PCB is arranged on the supporting body, and the MIC device is arranged on the PCB; the outer frame is provided with a sound outlet hole. The PCB is provided with a sound guide hole; the MIC device is provided with a working hole; the support body is provided with a sound guide channel; the sound outlet hole directly faces one end of the sound guide channel, and the working hole and the sound guide hole are correspondingly arranged at the other end of the sound guide channel and are communicated with the sound guide channel; and the dustproof net assembly is arranged between the PCB and the support body and is located at a position between the sound guide hole and the sound guide channel. According to the MIC hole misplug prevention structure provided by the utility model, the dustproof net is designed inside the L-shaped sound guide channel, so that the risk that the dustproof net is damaged when the clamping needle is misplug into the MIC hole is effectively avoided.

Description

Technical Field

[0001] The invention relates to the field of mobile phone MIC hole protection, and in particular to a MIC hole mis-insertion prevention structure. Background Art

[0002] Nowadays, people's lives are inseparable from mobile phones, and mobile phone designs are of various styles. Among them, the MIC hole of some mobile phones is set on the side of the phone near the SIM card slot, and is usually designed to be circular. Since the circular MIC hole is similar in shape to the SIM card pin hole, it is easy to mistakenly insert the card pin into the MIC hole when using the card pin. The dust net of the MIC hole is designed on the outside of the sound guide channel near the phone frame. When the card pin is mistakenly inserted into the MIC hole, there is a risk of damage to the dust net. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, the utility model provides a MIC hole anti-misinsertion structure, and designs a dustproof net structure inside the sound guide channel to avoid the risk of damage to the dustproof net when a card pin is mistakenly inserted into the MIC hole.

[0004] A MIC hole anti-misinsertion structure, comprising an outer frame, a PCB board, a MIC device, a support body and a dustproof net assembly;

[0005] The outer frame is assembled on the side of the support body, the PCB board is arranged on the support body, and the MIC device is arranged on the PCB board;

[0006] The outer frame is provided with a sound outlet hole; the PCB board is provided with a sound guide hole; the MIC device is provided with a working hole; the support body is provided with a sound guide channel; the sound outlet hole is directly opposite to one end of the sound guide channel, and the working hole and the sound guide hole are correspondingly arranged at the other end of the sound guide channel and are connected to the sound guide channel;

[0007] The dustproof net assembly is arranged between the PCB board and the supporting body and is located between the sound guide hole and the sound guide channel.

[0008] In one embodiment, the working hole, the sound guide hole, the sound guide channel and the sound outlet hole are respectively arranged correspondingly and are connected in sequence to form a sound guide path.

[0009] In one embodiment, the dustproof net device includes a seal and a dustproof net, the seal is sealed with the bottom surface of the PCB board, and the seal is provided with an opening corresponding to the sound guide channel; the dustproof net is arranged between the seal and the support body.

[0010] In one embodiment, the sound guide channel is divided into a longitudinal part and a horizontal part, and is L-shaped; the longitudinal part is connected to the corresponding sound guide hole, the dustproof net is arranged on the end surface of the longitudinal part close to the PCB board, and the horizontal part is connected to the sound outlet hole close to the end surface close to the frame.

[0011] In one embodiment, it further includes a shell, wherein the shell is assembled with the outer frame to form a receiving space, and the receiving space accommodates the MIC device, the PCB board, the dustproof net assembly and the support body.

[0012] In one embodiment, the support body is connected to the outer shell at a position close to the outer frame.

[0013] In one embodiment, the support body is sealed to the housing via a sealing foam.

[0014] In one embodiment, the seal is made of an elastic pre-compressible material.

[0015] In one embodiment, the sealing member is sealing foam.

[0016] In one embodiment, the bottom surface of the dustproof net is provided with adhesive backing, and the dustproof net is bonded to the support body through the adhesive backing.

[0017] The utility model provides a MIC hole anti-misinsertion structure and a MIC hole dust-proof structure, in which a working hole, a sound guide hole, a sound guide channel and a sound output hole are connected in sequence to form a sound guide path, and a dust-proof net device is arranged inside the MIC hole sound guide path, so that when the card pin is mistakenly inserted into the MIC hole, it will not touch the dust-proof net, thereby effectively avoiding the risk of damage to the dust-proof net. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0019] Figure 1 It is a partial structural schematic diagram of the MIC hole dustproof structure in one embodiment of the utility model;

[0020] Figure 2 It is a partial structural schematic diagram of another perspective of the MIC hole dustproof structure in one embodiment of the utility model;

[0021] Figure 3 The figure is a schematic structural diagram of a dustproof net assembly in one embodiment of the utility model. DETAILED DESCRIPTION

[0022] The following is a clear and complete description of the technical solutions in the embodiments of the present invention in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0023] In addition, the descriptions of "first", "second", etc. in the present invention are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in the field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0024] See also Figure 1 and Figure 2 , Figure 1 This is a partial structural diagram of the MIC hole dustproof structure in one embodiment of the utility model. Figure 2 The schematic diagram of the partial structure of the MIC hole dustproof structure in one embodiment of the utility model from another perspective. A MIC hole dustproof structure, comprising an outer frame 1, a PCB board 2, a MIC device 3, a support body 4 and a dustproof net assembly 5; the outer frame 1 is assembled on the side of the support body 4, the PCB board 2 is arranged on the support body 4, and the MIC device 3 is arranged on the PCB board 2; the outer frame 1 is provided with a sound outlet hole 11, the PCB board 2 is provided with a sound guide hole 21, the MIC device 3 is provided with a working hole 31, and the support body 4 is provided with a sound guide channel 41; the sound outlet hole 11 is directly opposite to one end of the sound guide channel 41, and the working hole 31 is correspondingly arranged with the sound guide hole 21 at the other end of the sound guide channel 41 and is connected with the sound guide channel 41; the dustproof net assembly 5 is arranged between the PCB board 2 and the support body 4 and is located between the sound guide hole 21 and the sound guide channel 41.

[0025] The MIC device 3 is a microphone (commonly known as a microphone or a microphone), which is a transducer that converts sound signals into electrical signals. The PCB board 2 is a printed circuit board, which is a provider of electrical connections for electronic components.

[0026] The working hole 31, the sound guide hole 21, the sound guide channel 41 and the sound outlet hole 11 are respectively arranged correspondingly and connected in sequence to form a sound guide path. The positions of the components are arranged according to the positions of the holes to form a sound guide path, and the external sound is transmitted to the MIC device 3 through the sound guide path. In some embodiments, the size relationship of the cross-sectional areas of the working hole 31, the sound guide hole 21 and the sound guide channel 41 is: working hole 31 < sound guide hole 21 < sound guide channel 41; the cross-sectional area of ​​the sound guide channel 41 is equal to that of the sound outlet hole 11.

[0027] In some possible implementation modes, the side of the outer frame 1 is sealed with the side of the support body 4; the PCB board 2 is arranged on the support body 4, and the bottom surface of the PCB board 2 is opposite to the top surface of the support body 4; the MIC device 3 is arranged on the PCB board 2; the dustproof net assembly 5 is arranged between the PCB board 2 and the support body 4 and is located between the sound guide hole 21 and the sound guide channel 41 to prevent dust from entering the MIC device 3.

[0028] Through the design of the above-mentioned positional relationship, the MIC device 3, the PCB board 2 and the dustproof net assembly 5 are combined from top to bottom into a stable sealing structure, the support body 4 provides stable support at the bottom of the sealing structure, and the MIC device 3 is fixed to the PCB board 2 by soldering, which can ensure the stability and sealing of the structure of the MIC device 3 and the dustproof net assembly 5.

[0029] See also Figure 3 , Figure 3 This is a schematic diagram of the structure of a dustproof net assembly in an embodiment of the utility model, and the attached figure shows a schematic diagram of the partial structure of the dustproof net assembly after half of it is cut off along the axis of symmetry. In some possible implementations, the dustproof net assembly 5 includes a seal 51 and a dustproof net 52, the seal 51 is sealed with the bottom surface of the PCB board 2, and the seal 51 is provided with an opening corresponding to the sound guide channel 41; the dustproof net 52 is arranged between the seal 51 and the support body 4. The seal 51 is made of an elastic pre-pressed material. In one possible implementation, the seal 51 is a sealing foam. A sealing foam is arranged between the PCB board 2 and the support body 4, and its elasticity can be used to reduce the vibration and friction between the PCB board 2 and the support body 4, thereby extending the life of the components. The bottom surface of the dustproof net 52 is provided with a backing adhesive 53, and the dustproof net 52 is bonded to the support body 4 through the backing adhesive 53.

[0030] The sound guide channel 41 is divided into a longitudinal portion 411 and a horizontal portion 412, and is L-shaped; the longitudinal portion 411 is correspondingly connected to the sound guide hole 21, and the dust screen 52 is arranged on the end surface of the longitudinal portion 411 close to the PCB board 2, and the end surface of the horizontal portion 412 close to the outer frame 1 is connected to the sound outlet hole 11. The sound guide channel 41 is arranged in an L-shape, so that dust is difficult to enter the interior of the sound guide channel 41 through the sound outlet hole 11. At the same time, when the card pin is mistakenly inserted into the sound guide channel 41, even if it passes through the horizontal portion of the sound guide channel 41, it cannot contact the dust screen located in the longitudinal portion of the sound guide channel 41, thereby avoiding the risk of damage to the dust screen.

[0031] Furthermore, the structure further includes a housing 6 on the outside, and the housing 6 is assembled with the outer frame 1 to form a receiving space, and the receiving space accommodates the MIC device 3, the PCB board 2, the dust screen assembly 5 and the support body 4. The housing 6 is arranged on the top of the MIC device 3, and a certain space is reserved for the MIC device 3 to avoid the MIC device 3 from contacting and colliding with other components and being damaged when subjected to external collision, thereby extending the service life of the MIC device 3.

[0032] The support body 4 is connected to the outer shell 6 at a position close to the outer frame 1. In some possible implementations, a portion of the support body 4 extends toward the outer shell 6. A portion of the top surface of the support body 4 is used to load and support the dust screen assembly 5, the PCB board 2, and the MIC device 3, and a portion of the support body 4 close to the outer frame 1 extends toward the outer shell 6 to the position of the outer shell 6. The support body 4 is sealed with the outer shell 6 by a sealing foam, thereby increasing the sealing area between the support body 4 and the outer frame 1 and enhancing the stability of the structure. In other possible implementations, the support body 4 and the outer shell 6 may also be sealed by other sealing materials.

[0033] In some possible implementations, the bottom surface of the support body 4 extends close to the outer frame 1 to a position equal to the width of the lower half of the outer frame 1, further increasing the sealing area between the support body 4 and the outer frame 1.

[0034] When the present application is used, dust enters the sound guide channel from the sound outlet. Since the sound guide channel is set to an L-shape with a horizontal portion and a longitudinal portion, it is more difficult for dust to enter the deep part of the sound guide channel. When the dust reaches the dust screen position deep in the sound guide channel, it is blocked by the dust screen, thereby preventing the dust from contacting the MIC device and causing damage to the MIC device. At the same time, when a pin or other bar-shaped object is mistakenly inserted into the MIC hole, it can only touch the inside of the horizontal part of the sound guide channel, and will not touch the longitudinal part of the sound guide channel, thereby avoiding the risk of the dust screen being damaged by the pin or bar-shaped object mistakenly inserted into the MIC hole.

[0035] Compared with the prior art, the dust-proof structure of the MIC hole provided by the utility model is composed of a working hole, a sound guide hole, a sound guide channel and a sound outlet hole which are connected in sequence to form a sound guide path. The sound guide channel is arranged in an L-shape, and the dust-proof net device is arranged at the end face of the longitudinal part inside the sound guide channel, so that when the card pin is accidentally inserted into the MIC hole, it will not touch the dust-proof net, effectively avoiding the risk of damage to the dust-proof net.

[0036] The above embodiments are only used to introduce the technical solutions of the present application in detail, but the description of the above embodiments is only used to help understand the methods of the embodiments of the present application and should not be understood as limiting the present application. Any changes or substitutions that can be easily thought of by those skilled in the art should be included in the protection scope of the embodiments of the present application.

Claims

1. A MIC hole anti-misinsertion structure, characterized by: Including outer frame, PCB board, MIC device, support body and dustproof net assembly; The outer frame is assembled on the side of the support body, the PCB board is arranged on the support body, and the MIC device is arranged on the PCB board; The outer frame is provided with a sound outlet hole, the PCB board is provided with a sound guide hole, the MIC device is provided with a working hole, and the support body is provided with a sound guide channel; the sound outlet hole is directly opposite to one end of the sound guide channel, and the working hole and the sound guide hole are correspondingly arranged at the other end of the sound guide channel and are connected to the sound guide channel; The dustproof net assembly is arranged between the PCB board and the supporting body and is located between the sound guide hole and the sound guide channel.

2. The MIC hole anti-misinsertion structure according to claim 1, characterized in that: The working hole, the sound guide hole, the sound guide channel and the sound outlet hole are respectively arranged correspondingly and are connected in sequence to form a sound guide path.

3. The MIC hole anti-misinsertion structure according to claim 1, characterized in that: The dustproof net assembly includes a sealing member and a dustproof net, the sealing member is sealed with the bottom surface of the PCB board, and the sealing member is provided with an opening corresponding to the sound guide channel; the dustproof net is arranged between the sealing member and the support body.

4. The MIC hole anti-misinsertion structure according to claim 1, characterized in that: The sound guide channel is divided into a longitudinal part and a horizontal part, and is L-shaped; the longitudinal part is connected to the sound guide hole accordingly, the dustproof net is arranged on the end surface of the longitudinal part close to the PCB board, and the end surface of the horizontal part close to the outer frame is connected to the sound outlet hole.

5. The MIC hole anti-misinsertion structure according to claim 1, characterized in that: It also includes a shell, which is assembled with the outer frame to form a receiving space, and the receiving space accommodates the MIC device, the PCB board, the dustproof net assembly and the support body.

6. The MIC hole anti-misinsertion structure according to claim 5, characterized in that: The support body is connected to the outer shell at a position close to the outer frame.

7. The MIC hole anti-misinsertion structure according to claim 6, characterized in that: The support body is sealed with the shell through sealing foam.

8. The MIC hole anti-misinsertion structure according to claim 3, characterized in that: The sealing element is made of an elastic pre-compressible material.

9. The MIC hole mis-insertion prevention structure according to claim 8, characterized in that: The sealing element is sealing foam.

10. The MIC hole mis-insertion prevention structure according to claim 3, characterized in that: The bottom surface of the dustproof net is provided with adhesive backing, and the dustproof net is bonded to the support body through the adhesive backing.

Images