Anti-impact assembly, microphone and electronic equipment

Abstract

The utility model provides an anti-impact assembly, a microphone and electronic equipment. The anti-impact assembly comprises a first deformation part, a second deformation part and a fixing part, the second deformation part is provided with through holes, cantilever parts are formed between the adjacent through holes, the second deformation part is further provided with a bearing part, and the bearing part is connected with the first deformation part through the cantilever parts; the fixing part is connected with the first deformation part, and the connecting position of the fixing part and the first deformation part is closer to the center of the bearing part than the connecting position of the cantilever part and the first deformation part. According to the invention, the energy transmitted from the airflow to the microphone diaphragm can be reduced.

Description

Technical Field

[0001] The present application relates to the technical field of microphones, and more particularly, to an impact-resistant component, a microphone, and an electronic device. Background Art

[0002] During microphone use, tiny particles such as dust and sawdust can enter the microphone's sound holes and clog the sound holes. Therefore, a strong blower is needed to remove the clogged particles. However, the diaphragm in the microphone is micron-thick, resulting in a limited load-bearing capacity. Consequently, the strong airflow generated by the blower can easily cause the diaphragm to rupture.

[0003] Therefore, it is necessary to provide a new technical solution to solve the above technical problems. Utility Model Content

[0004] One purpose of the present application is to provide a new technical solution for impact-resistant components, microphones and electronic devices.

[0005] According to a first aspect of the present application, there is provided an impact-resistant assembly, wherein the impact-resistant assembly comprises:

[0006] a first deformation portion;

[0007] a second deformation portion, wherein the second deformation portion is provided with through holes, cantilever portions are formed between adjacent through holes, and the second deformation portion is further provided with a bearing portion, and the bearing portion is connected to the first deformation portion through the cantilever portion;

[0008] A fixing portion is connected to the first deformable portion, and a connection position between the fixing portion and the first deformable portion is closer to the center of the bearing portion than a connection position between the cantilever portion and the first deformable portion.

[0009] Optionally, the first deformation portion includes a first bending portion and a second bending portion, the first bending portion is connected to the fixing portion, and the second bending portion is connected to the bearing portion through the cantilever portion.

[0010] Optionally, the first bending portion and the second bending portion form a zigzag structure, and the angle between the first bending portion and the second bending portion ranges from 10° to 20°.

[0011] Optionally, the first bending portion and the second bending portion form a curved structure.

[0012] Optionally, the length of the cantilever portion ranges from 5 to 15 μm.

[0013] Optionally, the thickness of the supporting portion is greater than 10 μm.

[0014] Optionally, the fixing portion includes an air flow channel, and the air flow channel is communicated with the through hole.

[0015] According to a second aspect of the present application, a microphone is provided, comprising a housing and an anti-shock component as described in any one of the first aspects, wherein the anti-shock component is connected to the housing.

[0016] Optionally, the housing includes an outer shell and a base plate, the outer shell is disposed on the base plate, an inner chamber is formed between the outer shell and the base plate; the base plate is connected to the fixing portion, and the base plate is provided with a vent hole, the vent hole being used to connect the inner chamber with the outside;

[0017] The anti-shock component is arranged on a side of the vent hole close to the inner chamber, or the anti-shock component is arranged on a side of the vent hole away from the inner chamber.

[0018] According to a third aspect of the present application, an electronic device is provided, comprising a microphone as described in any one of the second aspects.

[0019] In the impact-resistant component in the embodiment of the present application, the first deformation part and the second deformation part can be deformed along the direction of movement of the airflow, and the bearing part of the second deformation part can block the airflow from directly impacting the diaphragm of the microphone, thereby reducing the energy of the airflow transferred to the microphone diaphragm.

[0020] Other features and advantages of the present application will become apparent from the following detailed description of exemplary embodiments of the present application with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate embodiments of the application and, together with the description, serve to explain the principles of the application.

[0022] Figure 1 It is a schematic structural diagram of an impact-resistant component in one embodiment of the present application.

[0023] Figure 2 It is a cross-sectional view of an impact-resistant component in one embodiment of the present application.

[0024] Figure 3 It is a top view of an impact-resistant component in one embodiment of the present application.

[0025] Figure 4 It is a deformation diagram of the impact-resistant component in one embodiment of the present application.

[0026] Figure 5 This is a schematic diagram of the deformation of the impact-resistant component when it is in an extreme position in one embodiment of the present application.

[0027] Figure 6It is a structural diagram of the microphone in the first embodiment of this application.

[0028] Figure 7 It is a structural diagram of the microphone in the second embodiment of the present application.

[0029] Description of reference numerals:

[0030] 11. First deformation portion; 111. First bending portion; 112. Second bending portion; 12. Second deformation portion; 121. Cantilever portion; 122. Load-bearing portion; 13. Through hole; 14. Fixing portion; 141. Airflow channel;

[0031] 21. Substrate; 211. Vent; 22. Chip; 23. Adhesive portion. DETAILED DESCRIPTION

[0032] Various exemplary embodiments of the present application will now be described in detail with reference to the accompanying drawings. It should be noted that unless otherwise specifically stated, the relative arrangements of components and steps, numerical expressions and numerical values ​​set forth in these embodiments do not limit the scope of the present application.

[0033] The embodiments of the present application will be described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present application, and should not be understood as limiting the present application. Based on the embodiments in this application, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of this application.

[0034] It should be noted that like reference numerals and letters refer to like items in the following figures, and therefore, once an item is defined in one figure, it need not be further discussed in subsequent figures.

[0035] According to one embodiment of the present application, an impact-resistant component is provided, which includes a first deformation portion 11, a second deformation portion 12 and a fixing portion 14, the second deformation portion 12 is provided with a through hole 13, and a cantilever portion 121 is formed between adjacent through holes 13, the second deformation portion 12 is further provided with a bearing portion 122, and the bearing portion 122 is connected to the first deformation portion 11 through the cantilever portion 121; the fixing portion 14 is connected to the first deformation portion 11, and the connection position of the fixing portion 14 and the first deformation portion 11 is closer to the center of the bearing portion 122 than the connection position of the cantilever portion 121 and the first deformation portion 11.

[0036] Specifically, the strong load generated by the airflow can cause significant deformation of the microphone's diaphragm. This significant deformation can result in large strains at the root of the diaphragm, where the material is delaminated and where the cross-sectional geometric dimensions change most dramatically. This large strain can easily cause the diaphragm, made of brittle material, to rupture, thereby affecting the performance of the microphone. Therefore, the present application effectively reduces the energy transferred to the microphone diaphragm by the airflow by disposing the impact-resistant component in the microphone, that is, by disposing the impact-resistant component between the diaphragm and the sound hole.

[0037] like Figures 1 to 3 As shown, the impact-resistant assembly includes a first deformation portion 11, a second deformation portion 12 and a fixing portion 14. Figure 4 and Figure 5 As shown, both the first deformation part 11 and the second deformation part 12 can be deformed toward the direction of movement of the airflow. The second deformation part 12 is provided with a through hole 13 and a bearing part 122, and the through hole 13 is used for sound waves to pass through, so that the sound waves hit the diaphragm to cause mechanical vibration of the diaphragm. A cantilever part 121 is formed between adjacent through holes 13, and the bearing part 122 can be connected to the first deformation part 11 through the cantilever part 121. One end of the fixed part 14 is connected to the housing of the microphone, and the other end of the fixed part 14 is connected to the first deformation part 11. The connection position of the fixed part 14 and the first deformation part 11 is closer to the center of the bearing part 122 than the connection position of the cantilever part 121 and the first deformation part 11, so that the first deformation part 11 can form a bending structure.

[0038] When using a strong blowing device to blow out the blocked particles, the strong airflow will impact the impact-resistant component, such as Figure 5 As shown, the second deformation portion 12 can block the strong airflow and gradually deform into a bowl-shaped structure with the impact of the airflow. The first deformation portion 11 with a bent structure can also block the strong airflow and gradually change from a bend to a straight line. In this way, the first deformation portion 11 and the second deformation portion 12 are gradually deformed and are in the extreme position, effectively realizing the conversion of the impact energy of the strong airflow into the deformation of the first deformation portion 11 and the second deformation portion 12.

[0039] Therefore, the present application effectively absorbs and weakens the energy of strong airflow through the impact-resistant component's blocking of strong airflow and its own deformation, thereby significantly reducing the energy transmitted by the airflow to the diaphragm, reducing the deformation of the diaphragm, reducing the large strain formed on the diaphragm, and avoiding the phenomenon of diaphragm rupture due to airflow impact.

[0040] The impact-resistant component described in this application is preferably made of a high-strength, high-toughness, lightweight, and low-density polymer material to better resist airflow impact and better meet the needs of miniaturized and micro-microphones. The polymer material can be PI (polyimide) or PU (polyurethane), and those skilled in the art can select the material based on actual needs. This application does not impose any specific restrictions.

[0041] In addition, the first deformable portion 11, the second deformable portion 12, and the fixed portion 14 of the impact-resistant assembly described in this application can be integrally formed, or can be separately machined and formed and then assembled together by bonding. The materials of the first deformable portion 11, the second deformable portion 12, and the fixed portion 14 can be the same or different. However, since the first deformable portion 11 serves as a connector between the second deformable portion 12 and the fixed portion 14, the material selected for the first deformable portion 11 should be softer and thinner to better adapt to the traction on the second deformable portion 12 when a strong airflow impacts the second deformable portion 12.

[0042] In addition, the overall height of the impact-resistant component described in the present application is less than 100 μm, so as to avoid the problem of poor sound quality of the microphone caused by an overly large impact-resistant component when it is disposed in the inner chamber of the microphone.

[0043] It should be noted that the height and thickness described in the embodiment of the present application refer to the dimension of the second deformation portion 12 in the direction toward the fixing portion 14 .

[0044] In one embodiment, the first deformation portion 11 includes a first bending portion 111 and a second bending portion 112 . The first bending portion 111 is connected to the fixing portion 14 , and the second bending portion 112 is connected to the bearing portion 122 via the cantilever portion 121 .

[0045] Specifically, if Figure 1 and Figure 2 As shown, the first deformable portion 11 of the embodiment of the present application includes a first bend portion 111 and a second bend portion 112. The first bend portion 111 is used to connect to the fixing portion 14, and the second bend portion 112 is used to connect to the bearing portion 122 via the cantilever portion 121. The first bend portion 111 and the second bend portion 112 can form a spring-like structure, so that they can change from a contracted state to an extended state under the impact of airflow. Thus, through the contraction and extension of the spring-like structure, the first deformable portion 11 effectively weakens the absorption of strong airflow energy, preventing the transfer of large airflow energy to the diaphragm and causing deformation of the diaphragm.

[0046] In addition, a plurality of through holes may also be provided on the first deformation portion 11 of the present application to achieve the transmission of sound waves. Those skilled in the art may make a selection according to actual needs, and the present application does not impose any specific restrictions here.

[0047] In one embodiment, the first bending portion 111 and the second bending portion 112 form a zigzag structure, and the angle between the first bending portion 111 and the second bending portion 112 is in the range of 10 to 20 degrees.

[0048] Specifically, if Figure 2 As shown, in the embodiment of the present application, the first bending portion 111 and the second bending portion 112 are straight line shapes with a certain angle, and the angle between the first bending portion 111 and the second bending portion 112 is A. In this way, a broken line structure is formed by the straight line-shaped first bending portion 111 and the second bending portion 112, which effectively simplifies the design and manufacturing difficulty of the impact-resistant component.

[0049] In addition, since the main bodies of the first bending portion 111 and the second bending portion 112 are in a straight line shape, the bending condition between the first bending portion 111 and the second bending portion 112 can be calculated and simulated by mechanical methods, thereby effectively avoiding the angle between the first bending portion 111 and the second bending portion 112 being too large, which would cause the overall size of the impact-resistant component to be too high.

[0050] Furthermore, in order to meet the requirements of miniaturization and micro-miniaturization of the microphone and to avoid the excessively high impact-resistant components affecting the sound effect of the microphone, it is preferred that the angle A between the first bending portion 111 and the second bending portion 112 is in the range of 10 to 20 degrees.

[0051] In addition, the first deformation portion 11 of the present application can also be a broken line structure formed by multiple bending portions. Those skilled in the art can choose according to actual needs, and the present application does not make any specific restrictions here.

[0052] In one embodiment, the first bending portion 111 and the second bending portion 112 form a curved structure.

[0053] Specifically, in the embodiment of the present application, the first bending portion 111 and the second bending portion 112 are curved shapes with a certain curvature, thereby forming a curved structure through the curved first bending portion 111 and the second bending portion 112, which can better adapt to different load conditions, such as nonlinear and dynamic loads.

[0054] In addition, since the main bodies of the first bending portion 111 and the second bending portion 112 are curved, they can more effectively absorb and disperse the impact load when subjected to the impact of airflow, and the curved shape of the first bending portion 111 and the second bending portion 112 can also significantly improve the durability of the first deformation portion 11.

[0055] In addition, the first deformation portion 11 of the present application can also be a curved structure formed by multiple bending portions. Those skilled in the art can choose according to actual needs, and the present application does not make any specific restrictions here.

[0056] In one embodiment, the length of the cantilever portion 121 ranges from 5 μm to 15 μm.

[0057] Specifically, if Figure 1 As shown, the length of the cantilever portion 121 in the embodiment of the present application is L, and the length of the cantilever portion 121 refers to the dimension of the cantilever portion 121 from the bearing portion 122 to the first deformation portion 11 .

[0058] Since the bearing portion 122 is connected to the first deformable portion 11 through the cantilever portion 121 , in order to prevent the overly long cantilever portion 121 from being broken due to the impact of strong airflow, the length L of the cantilever portion 121 is preferably in the range of 5 to 15 μm.

[0059] In addition, the cantilever portion 121 described in the present application is provided in plurality, and the widths of the plurality of cantilever portions 121 can be designed to be equal width or unequal width, as long as the connection between the first deformation portion 11 and the second deformation portion 12 can be achieved.

[0060] In order to ensure the connection effect between the first deformation portion 11 and the second deformation portion 12 , the width of the cantilever portion 121 is preferably greater than 100 microns.

[0061] It should be noted that the width of the cantilever portion 121 in the present application refers to the size between adjacent through holes 13 .

[0062] In one embodiment, the thickness of the supporting portion 122 is greater than 10 μm.

[0063] Specifically, if Figure 1 As shown, the thickness of the supporting portion 122 in the embodiment of the present application is D.

[0064] When airflow impacts the bearing portion 122, a too thin bearing portion 122 may easily cause the stress generated during the bending deformation of the second deformation portion 12 to be concentrated on the cantilever portion 121, causing the cantilever portion 121 to break. Therefore, in order to avoid the cantilever portion 121 from breaking due to stress concentration, the thickness D of the bearing portion 122 is preferably greater than 10 μm.

[0065] In one embodiment, the fixing portion 14 includes an air flow channel 141 , and the air flow channel 141 is communicated with the through hole 13 .

[0066] Specifically, if Figure 1 and Figure 2 As shown, the air flow channel 141 in the embodiment of the present application corresponds to the second deformation portion 12, so that sound waves can enter the inner cavity of the microphone through the air flow channel 141 and the through hole 13, thereby effectively ensuring the sound effect of the microphone.

[0067] In addition, since the connection position between the fixing portion 14 and the first deformation portion 11 is closer to the center of the bearing portion 122 than the connection position between the cantilever portion 121 and the first deformation portion 11, in order to further improve the connection effect of the first deformation portion 11 to the second deformation portion 12 and the fixing portion 14, as well as the sound effect of the microphone, it is preferred that the diameter size of the air flow channel 141 is equal to the size of the vent 211.

[0068] According to another embodiment of the present application, a microphone is provided. The microphone includes a housing and the anti-shock component described in the embodiment of the present application, wherein the anti-shock component is connected to the housing.

[0069] Specifically, if Figure 6 and Figure 7 As shown, the embodiment of the present application fixes the impact-resistant component on the shell, so that when a strong blowing device is used to blow out the blocked particles, the impact-resistant component can block the strong airflow and deform itself, thereby effectively absorbing and weakening the energy of the strong airflow, so that the energy transmitted to the diaphragm by the airflow is significantly reduced, and the deformation of the diaphragm is reduced, the large strain formed by the diaphragm is reduced, and the phenomenon of the diaphragm being broken due to the impact of the airflow is avoided.

[0070] In one embodiment, the shell includes an outer shell (not shown) and a substrate 21, the outer shell is arranged on the substrate 21, and an inner chamber is formed between the outer shell and the substrate 21; the substrate 21 is connected to the fixing part 14, and the substrate 21 is provided with a vent 211, and the vent 211 is used to connect the inner chamber with the outside world; the impact-resistant component is arranged on the side of the vent 211 close to the inner chamber, or the impact-resistant component is arranged on the side of the vent 211 away from the inner chamber.

[0071] Specifically, the housing described in the embodiment of the present application includes an outer shell and a substrate 21 , and the outer shell can be covered on the substrate 21 through an adhesive portion 23 to form the inner chamber.

[0072] The inner chamber can be fixedly provided with a chip 22, and the chip 22 can be a MEMS (Micro Electro Mechanical System) chip and an ASIC (Application Specific Integrated Circuit) chip. The chip 22 can be fixed on the substrate 21 by solder connection, conductive glue connection, gold-tin solder connection, etc., so that the microphone can directly use the substrate 21 to arrange and support the chip 22 without setting up an additional supporting structure.

[0073] The inner chamber further has a vent hole 211 communicating with the outside world, and the vent hole 211 is provided on the substrate 21 and extends through the substrate 21. Of course, the vent hole 211 can also be provided on the outer shell and extend through the outer shell. Those skilled in the art can select the vent hole 211 according to actual needs, and this application does not impose any specific restrictions here.

[0074] like Figure 6 and Figure 7 As shown, when the vent hole 211 is provided on the substrate 21, the fixing portion 14 can be connected to the substrate 21 to enable the anti-shock component to be assembled in the microphone.

[0075] Thus, when tiny particles such as dust and wood chips in the air enter the microphone and block the sound hole, the present application can blow out the blocked particles through a strong blowing device. At this time, when the strong airflow of the strong blowing device passes through the vent 211 and enters the inner chamber, since the anti-impact component is arranged on the side of the vent 211 close to the inner chamber through the adhesive portion 23, or the anti-impact component is arranged on the side of the vent 211 away from the inner chamber through the adhesive portion 23, the anti-impact component can block the strong airflow and deform itself, effectively achieving the absorption and weakening of the energy of the strong airflow, so that the energy transmitted by the airflow to the diaphragm is significantly reduced, and the deformation of the diaphragm is reduced, the large strain formed by the diaphragm is reduced, and the phenomenon of the diaphragm being broken due to the impact of the airflow is avoided.

[0076] In addition, a mounting groove for mounting the anti-impact component may be provided on the side of the vent hole 211 close to the inner chamber, or on the side of the vent hole 211 away from the inner chamber, to further improve the stability and reliability of the anti-impact component.

[0077] According to another embodiment of the present application, an electronic device is provided, which includes the microphone described in the embodiment of the present application.

[0078] Specifically, the electronic device described in the embodiments of the present application can be any one of a mobile phone, a tablet computer, a personal digital assistant, a television, a smart wearable product, a virtual reality terminal device, an augmented reality terminal device, a rechargeable small household appliance (such as a soy milk maker, a sweeping robot), a drone, a radar, aerospace equipment and a vehicle-mounted device.

[0079] The above embodiments focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0080] Although some specific embodiments of the present application have been described in detail by way of examples, it should be understood by those skilled in the art that the above examples are for illustration only and are not intended to limit the scope of the present application. It should be understood by those skilled in the art that the above embodiments may be modified without departing from the scope and spirit of the present application. The scope of the present application is defined by the appended claims.

Claims

1. An impact-resistant component, characterized in that: include: a first deformation portion (11); a second deformation portion (12), the second deformation portion (12) being provided with a through hole (13), a cantilever portion (121) being formed between adjacent through holes (13), the second deformation portion (12) being further provided with a bearing portion (122), the bearing portion (122) being connected to the first deformation portion (11) via the cantilever portion (121); A fixing portion (14), the fixing portion (14) being connected to the first deformable portion (11), wherein a connection position between the fixing portion (14) and the first deformable portion (11) is closer to a center of the bearing portion (122) than a connection position between the cantilever portion (121) and the first deformable portion (11).

2. The impact-resistant assembly according to claim 1, wherein: The first deformation portion (11) comprises a first bending portion (111) and a second bending portion (112); the first bending portion (111) is connected to the fixing portion (14); and the second bending portion (112) is connected to the bearing portion (122) via the cantilever portion (121).

3. The impact-resistant assembly according to claim 2, characterized in that The first bending portion (111) and the second bending portion (112) form a broken line structure, and the angle between the first bending portion (111) and the second bending portion (112) ranges from 10 to 20 degrees.

4. The impact-resistant assembly according to claim 2, characterized in that The first bending portion (111) and the second bending portion (112) form a curved structure.

5. The impact-resistant assembly according to claim 1, wherein: The length of the cantilever portion (121) ranges from 5 to 15 μm.

6. The impact-resistant assembly according to claim 1, wherein: The thickness of the supporting portion (122) is greater than 10 μm.

7. The impact-resistant assembly according to claim 1, wherein: The fixing portion (14) comprises an air flow channel (141), and the air flow channel (141) is communicated with the through hole (13).

8. A microphone, characterized in that: The invention comprises a shell and the impact-resistant assembly according to any one of claims 1 to 7, wherein the impact-resistant assembly is connected to the shell.

9. The microphone according to claim 8, characterized in that The housing comprises an outer shell and a base plate (21), wherein the outer shell is arranged on the base plate (21), and an inner chamber is formed between the outer shell and the base plate (21); the base plate (21) is connected to the fixing portion (14), and the base plate (21) is provided with a vent hole (211), and the vent hole (211) is used to connect the inner chamber with the outside; The anti-impact component is arranged on a side of the vent hole (211) close to the inner chamber, or the anti-impact component is arranged on a side of the vent hole (211) away from the inner chamber.

10. An electronic device, characterized in that: Includes the microphone according to claim 8 or 9.

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