Metallic air permeable spacer, sound production device, sound production module and electronic device

Abstract

The application discloses a metal air-permeable spacer, a sound generating device, a sound generating module and electronic equipment. The metal air-permeable spacer is applied to the sound generating device. The metal air-permeable spacer comprises a bottom, a first side and a second side. The bottom has a round corner position. The first side is arranged at the edge of the bottom and surrounds the bottom to form a cavity. The first side is provided with a gap corresponding to the round corner position. The first side is further provided with a first through hole communicating with the cavity. The second side is arranged in a stack with the first side. At least part of the second side covers the gap and is provided with an air-permeable hole communicating with the cavity. The application aims to provide a metal air-permeable spacer capable of effectively increasing the leakage amount and reducing the sound resistance. The metal air-permeable spacer is applied to the sound generating device. The sensitivity and the hearing sensation of the sound generating device are improved. The product performance and the reliability are also improved.

Description

Technical Field

[0001] This invention relates to the field of electroacoustic conversion technology, and in particular to a metal breathable insulating component and a sound-generating device, sound-generating module and electronic device using the metal breathable insulating component. Background Technology

[0002] With the rapid development of technology, people have increasingly higher demands for the sound quality of electronic devices. These demands extend beyond simply playing video and audio; they now require higher quality and reliability in the sound output. As the size of the sound-generating components in electronic devices is influenced by their external structure, they are becoming increasingly smaller. Since these components are crucial and indispensable functional parts of electronic devices, they are an important element in the trend towards thinner and lighter designs, making their miniaturization extremely important.

[0003] In related technologies, when electronic devices are designed to be miniaturized and made thinner, the area of ​​the sound hole becomes smaller and smaller, resulting in a larger and larger acoustic impedance, which in turn reduces the sound sensitivity and listening experience of the electronic devices. Summary of the Invention

[0004] The main objective of this invention is to provide a metal breathable insulating component, a sound-generating device, a sound-generating module, and an electronic device. The aim is to provide a metal breathable insulating component that effectively increases leakage and reduces acoustic impedance. When applied to a sound-generating device, this metal breathable insulating component not only improves the sensitivity and hearing of the sound-generating device but also enhances product performance and reliability.

[0005] To achieve the above objectives, the present invention proposes a breathable metal insulating component for use in a sound-generating device, the breathable metal insulating component comprising:

[0006] The bottom has rounded corners;

[0007] A first side portion, located at the edge of the bottom and forming a cavity with the bottom, has a notch corresponding to the rounded corner, and also has a first through hole communicating with the cavity; and

[0008] The second side portion is stacked on top of the first side portion, and at least part of the second side portion covers the notch and has a vent hole communicating with the cavity.

[0009] In one embodiment, the second side portion includes a straight section and an arc-shaped section, the arc-shaped section being connected to the straight section, the arc-shaped section being provided with the vent hole corresponding to the notch, the straight section being provided with a second through hole, a portion of the first through hole communicating with a portion of the second through hole, and cooperating to form a venting micropore communicating with the cavity.

[0010] In one embodiment, the bottom has a plurality of rounded corner positions, which are spaced apart.

[0011] The first side portion has a notch corresponding to each of the rounded corner positions;

[0012] The second side portion includes a plurality of straight segments and a plurality of arc segments, each arc segment corresponding to a notch, and two adjacent arc segments are connected by the straight segments.

[0013] In one embodiment, the second side portion further includes a bent section that connects the straight section and the first side portion.

[0014] In one embodiment, the bent section is located on the side of the straight section and the first side away from the bottom;

[0015] And / or, the bending segment includes multiple bending segments, which are spaced apart;

[0016] And / or, the straight section is recessed into at least one side of the bent section with a first groove;

[0017] And / or, the first side portion is recessed into at least one side of the bent section with a second groove.

[0018] In one embodiment, the first side portion, the bent section, and the straight section are integrally formed, and the second side portion is formed by bending the side of the first side portion away from the bottom in the bent section, so that the second side portion and the first side portion are stacked.

[0019] And / or, the straight section and the arc-shaped section are integrally formed; or, the straight section and the arc-shaped section are welded or bonded together.

[0020] In one embodiment, the first through hole is provided as a strip hole, the second through hole is provided as a strip hole, and the extension direction of the first through hole and the extension direction of the second through hole are set at an angle.

[0021] In one embodiment, the first through hole includes a plurality of holes, which are spaced apart; the second through hole includes a plurality of holes, which are spaced apart.

[0022] Each of the first through holes is connected to at least two of the second through holes; and / or, each of the second through holes is connected to at least two of the first through holes.

[0023] In one embodiment, the spacing between two adjacent first through holes is greater than or greater than the thickness of the first side portion;

[0024] And / or, the spacing between two adjacent second through holes is greater than or greater than the thickness of the second side portion;

[0025] And / or, the extension direction of the first through hole is perpendicular to the extension direction of the second through hole.

[0026] In one embodiment, the vent hole is circular, elliptical, polygonal, or irregular in shape;

[0027] And / or, the pore size of the air vent is smaller than the outer diameter of the sound-absorbing particle;

[0028] And / or, the pore size of the venting micropore is smaller than the outer diameter of the sound-absorbing particle.

[0029] In one embodiment, the second side is detachably connected to the first side;

[0030] Alternatively, the second side may be welded or bonded to the first side.

[0031] In one embodiment, the first side portion is further provided with an opening communicating with the cavity;

[0032] The second side is also provided with a snap-fit ​​part near the opening, and the second side is snap-fitted to the first side near the opening through the snap-fit ​​part.

[0033] In one embodiment, the snap-fit ​​portion is formed by bending one end of the second side portion adjacent to the opening toward the opening to form a snap hook;

[0034] Alternatively, the snap-fit ​​part may be a snap-fit ​​structure.

[0035] In one embodiment, the bottom and the first side are integrally formed, and the first side is formed by bending the periphery of the bottom;

[0036] And / or, the second side is located on the side of the first side facing the cavity; or, the second side is located on the side of the first side facing away from the cavity.

[0037] The present invention also proposes a sound-generating device, the sound-generating device comprising:

[0038] shell;

[0039] The aforementioned breathable metal insulating element is connected to the outer shell;

[0040] A magnetic circuit system connected to the housing;

[0041] A vibration system is connected to the side of the housing facing away from the magnetic circuit system and opposite to the magnetic circuit system. The vibration system, the housing, the metal breathable isolation component, and the magnetic circuit system enclose a sound cavity, which is connected to the vent hole and the first through hole of the metal breathable isolation component.

[0042] The present invention also proposes a sound-generating module, the sound-generating module comprising:

[0043] A sound-generating device, wherein the sound-generating device is the sound-generating device described above; and

[0044] The module housing has an inner cavity and a sound outlet communicating with the inner cavity. The sound-generating device is disposed in the inner cavity. The sound-generating device cooperates with the module housing to divide the inner cavity into a front sound cavity and a rear sound cavity. The front sound cavity is communicating with the sound outlet, and the rear sound cavity is communicating with the sound cavity of the sound-generating device. The rear sound cavity is filled with sound-absorbing particles, and the outer diameter of the sound-absorbing particles is larger than the diameter of the vent hole of the sound-generating device.

[0045] The present invention also proposes an electronic device, the electronic device comprising a device housing and the aforementioned sound-emitting module, the sound-emitting module being disposed in the device housing;

[0046] Alternatively, the electronic device may include a device housing and the aforementioned sound-generating device, wherein the sound-generating device is disposed within the device housing.

[0047] The metal breathable insulating component of this invention features a first side portion at the bottom edge with a first through hole. When applied to a sound-generating device, this through hole allows for air venting. Simultaneously, a notch is provided at the rounded corner of the first side portion corresponding to the bottom edge, preventing stretching and deformation of the first side portion during manufacturing and facilitating processing. The second side portion is stacked with the first side portion, effectively enhancing the structural strength and reliability of the metal breathable insulating component. Furthermore, at least part of the second side portion covers the notch and provides a vent hole connecting to the cavity. When applied to a sound-generating device, the second side portion blocks or prevents particles from entering the device through the notch, while the vent hole allows for air venting and effectively increases the leakage rate of the metal breathable insulating component, reducing sound resistance. Understandably, by setting a second side and setting vent holes at the corresponding rounded corner positions on the second side, the vent holes at the rounded corner positions are enlarged based on the first through hole on the first side. This effectively balances the sound pressure in the acoustic cavity of the sound-generating device and increases the leakage of sound pressure in the acoustic cavity, effectively reducing acoustic resistance. This can improve the sensitivity and hearing of the sound-generating device, as well as improve the product performance and reliability of the sound-generating device. Attached Figure Description

[0048] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the structures shown in these drawings without creative effort.

[0049] Figure 1 This is a schematic diagram of the structure of a metal breathable insulating component in one embodiment of the present invention;

[0050] Figure 2 This is a schematic diagram of the metal breathable insulating component from another perspective in one embodiment of the present invention;

[0051] Figure 3 for Figure 2 Enlarged view of point A in the middle;

[0052] Figure 4 for Figure 2 Enlarged view of point B in the middle;

[0053] Figure 5 for Figure 2 Enlarged view of point C in the middle;

[0054] Figure 6 for Figure 2 Enlarged view of point D in the middle;

[0055] Figure 7 This is a partial cross-sectional schematic diagram of a metal breathable insulating component in one embodiment of the present invention;

[0056] Figure 8 This is an exploded view of a metal breathable insulating component according to another embodiment of the present invention;

[0057] Figure 9 This is a schematic diagram of the structure of a sound-generating device in one embodiment of the present invention;

[0058] Figure 10 This is a schematic diagram of the sound-generating device from another perspective in one embodiment of the present invention;

[0059] Figure 11 This is a cross-sectional schematic diagram of a sound-generating device in one embodiment of the present invention.

[0060] Explanation of icon numbers:

[0061] 100 Metal breathable insulation component 312 First groove 1 bottom 32 arc segment 11 cavity 321 Ventilation holes 12 Rounded corner position 33 Bend section 2 First side 34 Connector 21 gap 4 Vent micropores 22 First through hole 500 shell 23 Second groove 600 Magnetic circuit system 24 Opening 700 Vibration system 3 Second side 800 vocal tract 31 Straight section 900 Sound-generating device 311 Second through hole

[0062] The realization of the objective, functional features and advantages of the present invention will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0063] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present invention.

[0064] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indication will also change accordingly.

[0065] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0066] Furthermore, in this invention, descriptions involving "first," "second," etc., are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. When the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed by this invention.

[0067] With the rapid development of technology, people have increasingly higher demands for the sound quality of electronic devices. These demands extend beyond simply playing video and audio; they now require higher quality and reliability in the sound output. As the size of the sound-generating components in electronic devices is influenced by their external structure, they are becoming increasingly smaller. Since these components are crucial and indispensable functional parts of electronic devices, they are an important element in the trend towards thinner and lighter designs, making their miniaturization extremely important.

[0068] In related technologies, when electronic devices are designed to be miniaturized and thinner, the area of ​​the sound hole becomes smaller and smaller, resulting in a larger acoustic impedance and a decrease in the sound sensitivity and listening experience of the electronic devices. In order to improve the performance of electronic devices, the rear cavity of the electronic device is usually filled with sound-absorbing particles. At this time, it is necessary to add a steel mesh or a breathable isolation component to the rear sound hole of the sound-emitting device to prevent the sound-absorbing particles from entering the interior of the sound-emitting device.

[0069] Currently, due to process limitations, the vent holes in steel mesh or breathable insulating components inevitably exist at the rounded corners of the sidewalls. However, the size of the vent holes at these rounded corners cannot be precisely controlled due to the sidewall forming process. Therefore, steel mesh or breathable insulating components typically do not have openings at these rounded corners. This results in the inability to effectively increase the opening area of ​​the steel mesh or breathable insulating components, affecting air permeability and leading to a decrease in the sensitivity of the sound-generating device. This is particularly problematic when the sound-generating device is installed in a box, where its performance is severely limited.

[0070] Based on the above concepts and problems, this invention proposes a breathable metal insulating component 100, which is applied to a sound-generating device 900 to prevent sound-absorbing particles from entering the interior of the sound-generating device 900. It is understood that the sound-generating device 900 is applied to an electronic device, which may be a mobile phone, speaker, computer, headphones, watch, or television, etc., and is not limited thereto.

[0071] Please refer to the reference. Figures 1 to 8 As shown, in this embodiment of the invention, the metal breathable insulating member 100 includes a bottom 1, a first side portion 2, and a second side portion 3. The bottom 1 has a rounded corner position 12. The first side portion 2 is located at the edge of the bottom 1 and forms a cavity 11 with the bottom 1. The first side portion 2 has a notch 21 corresponding to the rounded corner position 12. The first side portion 2 also has a first through hole 22 communicating with the cavity 11. The second side portion 3 is stacked with the first side portion 2. At least part of the second side portion 3 covers the notch 21 and has a breathable hole 321 communicating with the cavity 11.

[0072] In this embodiment, the metal breathable isolator 100 is applied in the sound-generating device 900. The metal breathable isolator 100 can be installed or connected to the magnetic circuit system 600 and / or the housing 500 of the sound-generating device 900. Of course, in other embodiments, the metal breathable isolator 100 can also be used as an independent component, so that the sound-generating device 900 is installed in a sound-generating module or electronic device. That is, when the sound-generating device 900 is disposed in a module housing, equipment housing, or metal BOX, the metal breathable isolator 100 is disposed in the rear acoustic cavity formed by the sound-generating device 900 and the module housing, equipment housing, or metal BOX, so as to effectively prevent the sound-absorbing particles filled in the rear acoustic cavity from entering the interior of the sound-generating device 900.

[0073] Understandably, the metal breathable insulating component 100 can achieve the function of breathability. The metal breathable insulating component 100 can be directly processed from metal sheet or formed by weaving metal wire. In this embodiment, the metal breathable insulating component 100 is integrally stamped or bent from a metal sheet material. To facilitate the installation and fixing of the metal breathable insulating component 100, the metal breathable insulating component 100 includes a bottom 1 and a first side 2. The bottom 1 is used to connect with the magnetic circuit system 600 of the sound-generating device 900. The first side 2 is disposed on the periphery of the bottom 1 and extends toward the outer shell 500 or the vibration system 700, so that the first side 2 and the bottom 1 cooperate to cover the bottom or side sound leakage holes and other structures of the sound-generating device 900. This can achieve both installation and fixing, and ensure the sound pressure in the sound cavity 800 of the sound-generating device 900.

[0074] It should be noted that the shape and contour of the bottom 1 of the metal breathable insulating member 100 are adapted to the outer contour of the magnetic circuit system 600 and / or the housing 500 of the sound-generating device 900. Optionally, the bottom 1 is square. In this embodiment, the bottom 1 has a rounded corner position 12. It can be understood that the rounded corner position 12 can be a right-angled corner of the bottom 1 or a corner position with an arc segment.

[0075] In this embodiment, since the bottom 1 has a rounded corner position 12, when the first side portion 2 is disposed on the periphery of the bottom 1, the first side portion 2 forms a corner or arc position corresponding to the rounded corner position 12. It is understood that the corner or arc position of the first side portion 2 is limited by the processing technology. When the first side portion 2 forms a corner or arc position, metal flow will occur at the corner or arc position, which will cause tensile deformation.

[0076] It should be noted that in the molding process of the metal breathable insulating component 100 in the related technology, holes need to be drilled on the sheet metal corresponding to the position of the first side 2 to form through holes or vents. Then, the sheet metal is stamped or bent. This causes the corners or arc-shaped positions of the first side 2 to be stretched and deformed during the formation of the first side 2. At this time, the through holes or vents located at the corners or arc-shaped positions will be affected by the stretching or deformation, resulting in changes in the diameter or shape of the through holes or vents. This may cause the diameter of the through holes or vents to be larger than the outer diameter of the sound-absorbing particles, making it impossible to prevent the sound-absorbing particles from entering the sound-generating device 900. Therefore, in the related technology, through holes or vents are not provided at the corners or arc-shaped positions of the first side 2. This reduces the overall air permeability or air permeability area of ​​the metal breathable insulating component 100, thereby affecting the sensitivity and other performance characteristics of the sound-generating device 900.

[0077] In this embodiment, by providing a notch 21 at the rounded corner position 12 of the first side portion 2, deformation of the first side portion 2 at the rounded corner position 12 during processing can be avoided, and the processing efficiency of the first side portion 2 can be improved. Simultaneously, by providing a second side portion 3, which is stacked on top of the first side portion 2, and at least part of the second side portion 3 covers the notch 21 and has a vent hole 321 connecting to the cavity 11, the second side portion 3 can cover the notch 21, preventing sound-absorbing particles from entering the sound-generating device 900 through the notch 21. This allows for ventilation through the vent hole 321 on the second side portion 3, effectively increasing the venting area and thus increasing the pressure leakage within the sound cavity 800. This effectively reduces acoustic resistance, further improving the sensitivity and listening experience of the sound-generating device 900, and enhancing the product performance and reliability of the sound-generating device 900.

[0078] It is understandable that the second side 3 can be a separately configured component or integrally formed with the first side 2, etc., and no limitation is made here. Optionally, the metal breathable barrier 100 can be a steel mesh, mesh fabric, steel mesh plate, aluminum mesh plate, or copper mesh plate. The shape of the metal breathable barrier 100 can be processed according to requirements, making its application more flexible.

[0079] In this embodiment, the first side portion 2 of the metal breathable insulating member 100 may be provided with a plurality of first through holes 22, which are spaced apart and may be arranged in an array or in a random order, without limitation. Optionally, the second side portion 3 is provided with a plurality of vent holes 321, which are spaced apart and may be arranged in an array or in a random order, without limitation. Optionally, the plurality of first through holes 22 are uniformly and spaced apart on the first side portion 2. The plurality of vent holes 321 are uniformly and spaced apart on the second side portion 3, without limitation.

[0080] Optionally, the shape of the vent 321 can be circular, elliptical, triangular, square, or other polygonal or irregular shapes, and is not limited thereto. To effectively prevent sound-absorbing particles from entering the sound-generating device 900, the diameter of the vent 321 is smaller than the outer diameter of the sound-absorbing particles. Optionally, the first through hole 22 and the vent 321 on the metal breathable insulating member 100 can be formed by etching or stamping, or they can be formed by weaving metal wires.

[0081] In this embodiment, when the second side portion 3 does not cover the first through hole 22 of the first side portion 2, the shape and outline of the first through hole 22 can be similar to or consistent with the shape and outline of the vent hole 321. For example, the shape of the first through hole 22 can be a circle, ellipse, triangle, square, or other polygons or irregular shapes, etc., and is not limited here. In order to effectively prevent sound-absorbing particles from entering the sound-generating device 900, the aperture of the first through hole 22 is smaller than the outer diameter of the sound-absorbing particles.

[0082] Understandably, in order to ensure the air permeability of the metal breathable insulating member 100, the opening ratio of the first through hole 22 on the first side portion 2 of the metal breathable insulating member 100 is less than or equal to 80%. Optionally, the opening ratio of the first through hole 22 on the first side portion 2 is 40% to 50%.

[0083] Of course, a first through hole 22 and / or a vent hole 321 may also be provided on the bottom 1 of the metal breathable insulating component 100, which can effectively cover the sound leakage hole at the bottom of the magnetic circuit system 600 of the sound-generating device 900. In this embodiment, such as Figure 1 , Figure 2 , Figure 8 and Figure 10 As shown, the bottom 1 has a through hole, and part of the magnetic circuit system 600 on the side facing away from the vibration system 700 is exposed through the through hole. This design can effectively save material of the metal breathable isolation component 100.

[0084] The metal breathable insulating member 100 of the present invention has a first side portion 2 provided at the edge of the bottom 1, and a first through hole 22 provided on the first side portion 2. When the metal breathable insulating member 100 is applied to a sound-generating device 900, air can be released using the first through hole 22. Simultaneously, by providing a notch 21 at the rounded corner position 12 corresponding to the bottom 1 of the first side portion 2, the stretching deformation of the first side portion 2 is avoided during the processing of the metal breathable insulating member 100, and processing is convenient. Furthermore, a second side portion 3 is provided, stacked on top of the first side portion 2. This effectively strengthens the structural strength and reliability of the metal breathable isolator 100, and at least part of the second side portion 3 covers the notch 21, and a vent hole 321 is provided that connects to the cavity 11. Thus, when the metal breathable isolator 100 is applied to the sound-generating device 900, the second side portion 3 blocks or prevents particles from entering the sound-generating device 900 through the notch 21, and the vent hole 321 can both release air from the sound-generating device 900 and effectively increase the leakage of the metal breathable isolator 100, thereby reducing the sound resistance. Understandably, by providing a second side portion 3 and a vent hole 321 at the corresponding rounded corner position 12 on the second side portion 3, the vent hole 321 at the rounded corner position 12 is enlarged based on the first through hole 22 of the first side portion 2. This effectively balances the sound pressure in the acoustic cavity 800 of the sound-generating device 900 and increases the leakage of sound pressure in the acoustic cavity 800, effectively reducing acoustic resistance. This can improve the sensitivity and hearing of the sound-generating device 900, as well as improve the product performance and reliability of the sound-generating device 900.

[0085] In one embodiment, the second side portion 3 includes a straight section 31 and an arc-shaped section 32. The arc-shaped section 32 is connected to the straight section 31. The arc-shaped section 32 is provided with a vent hole 321 corresponding to the notch 21. The straight section 31 is provided with a second through hole 311. Part of the first through hole 22 communicates with part of the second through hole 311 and cooperates to form a venting microhole 4 in the communicating cavity 11.

[0086] In this embodiment, as Figures 1 to 8 As shown, by setting the second side portion 3 as a straight section 31 and an arc-shaped section 32, the arc-shaped section 32 of the second side portion 3 is correspondingly set with the notch 21 of the first side portion 2, and a vent hole 321 is opened in the arc-shaped section 32. In this way, the arc-shaped section 32 can both cover the notch 21 and allow air to pass through through the vent hole 321, thereby increasing the air permeability. At the same time, by providing a second through hole 311 in the straight section 31 of the second side portion 3, part of the first through hole 22 and part of the second through hole 311 are connected, and they cooperate to form a venting micro-hole 4 in the connected cavity 11, so that air can be vented through the venting micro-hole 4.

[0087] Understandably, the straight section 31 of the second side portion 3 is stacked on top of the first side portion 2, except for the area corresponding to the rounded corner 12. To prevent the straight section 31 from completely covering the first through hole 22, a second through hole 311 is provided in the straight section 31. In this embodiment, the second through hole 311 can completely overlap with the first through hole 22. At this time, the shape and outline of the second through hole 311 can be similar to or consistent with the shape and outline of the vent hole 321. For example, the shape of the second through hole 311 can be a circle, ellipse, triangle, square, or other polygons or irregular shapes, etc., which are not limited here. In order to effectively prevent sound-absorbing particles from entering the sound-generating device 900, the aperture of the second through hole 311 is smaller than the outer diameter of the sound-absorbing particles.

[0088] Of course, the second through hole 311 may not completely overlap with the first through hole 22, that is, part of the first through hole 22 and part of the second through hole 311 are connected and cooperate to form the venting microhole 4 of the connected cavity 11. Optionally, the pore size of the venting microhole 4 is smaller than the outer diameter of the sound-absorbing particle.

[0089] exist Figure 8 In the specific example shown, the second side portion 3 includes three straight sections 31, with an arc-shaped section 32 between each pair of adjacent straight sections 31, and the arc-shaped sections 32 at both ends are not connected. Thus, through this arrangement, the second side portion 3 forms a non-closed annular structure, which facilitates the processing and shaping of the arc-shaped sections 32, and also facilitates the processing of ventilation holes 321 on the arc-shaped sections 32, effectively solving the problem that the rounded corner 12 of the first side portion 1 cannot be properly perforated.

[0090] In one embodiment, the bottom 1 has multiple rounded corner positions 12, which are spaced apart; the first side 2 has a notch 21 corresponding to each rounded corner position 12; the second side 3 includes multiple straight segments 31 and multiple arc segments 32, each arc segment 32 is provided with a notch 21, and two adjacent arc segments 32 are connected by straight segments 31.

[0091] In this embodiment, as Figure 1 , Figure 2 , Figure 8 and Figure 10 As shown, the bottom 1 is polygonal. Optionally, the bottom 1 is square. In this case, the bottom 1 has a long side and a short side, and the connection between the long side and the short side of the bottom 1 forms a rounded corner position 12. Optionally, the bottom 1 has four rounded corner positions 12. Multiple rounded corner positions 12 are arranged alternately, and the rounded corner positions 12 are alternately arranged with the long side or the short side, which is not limited here.

[0092] Understandably, the first side portion 2 has multiple notches 21. Optionally, the number of notches 21 is the same as the number of rounded corner positions 12, and the notches 21 and rounded corner positions 12 are arranged in a one-to-one correspondence. In this embodiment, the second side portion 3 includes multiple straight segments 31 and multiple arc-shaped segments 32. The number of arc-shaped segments 32 is the same as the number of notches 21, and the arc-shaped segments 32 and notches 21 are arranged in a one-to-one correspondence. Adjacent arc-shaped segments 32 are connected by straight segments 31. Optionally, the shape and outline of the second side portion 3 are similar to the shape and outline of the first side portion 2, and this is not limited here.

[0093] In one embodiment, the second side portion 3 further includes a bent section 33, which connects the straight section 31 and the first side portion 2. It is understood that this arrangement achieves both a fixed connection between the second side portion 3 and the first side portion 2, and avoids the arc-shaped section 32 of the second side portion 3 being limited by the manufacturing process.

[0094] In this embodiment, as Figure 1 , Figure 2 , Figure 4 and Figure 7 As shown, the first side portion 2, the bent section 33, and the straight section 31 are integrally formed, and the second side portion 3 is formed by bending the first side portion 2 away from the bottom 1 at the bent section 33, so that the second side portion 3 and the first side portion 2 are stacked. Optionally, the bent section 33 is located on the side of the straight section 31 and the first side portion 2 away from the bottom 1.

[0095] Understandably, the bottom 1 and the first side portion 2 can be integrally formed, with the first side portion 2 formed by bending upwards or downwards from the periphery of the bottom 1, such that the first side portion 2 and the bottom 1 are optionally perpendicular. The second side portion 3 is formed by bending the first side portion 2 at the bending section 33, such that the second side portion 3 and the first side portion 2 are stacked. In this embodiment, at least in the arc segment 32, there is no bending section 33 between the second side portion 3 and the first side portion 2.

[0096] Optionally, the bent segments 33 include multiple segments, which are spaced apart. In this embodiment, the multiple bent segments 33 are disposed on the straight segments 31 between two adjacent arc-shaped segments 32. To improve the bending deformation effect of the bent segments 33, such as... Figure 1 , Figure 2 , Figure 4 and Figure 7 As shown, the straight section 31 has a first groove 312 recessed on at least one side of the bent section 33. The first side portion 2 has a second groove 23 recessed on at least one side of the bent section 33.

[0097] In this embodiment, as Figure 1 , Figure 2 , Figure 4 and Figure 7 As shown, the straight section 31 has a first groove 312 recessed on both sides of the bent section 33, and the first side part 2 has a second groove 23 recessed on both sides of the bent section 33.

[0098] It should be noted that, as Figure 1 , Figure 2 , Figure 3 , Figure 8 , Figure 10 As shown, the straight section 31 and the arc-shaped section 32 are integrally formed. It can be understood that the arc-shaped section 32 is located at both ends of the straight section 31, and is formed by extruding and bending the ends of the straight section 31. During the formation of the arc-shaped section 32, it does not undergo tensile deformation, thus not affecting the shape and structure of the vent 321, maintaining structural consistency. Of course, in other embodiments, the straight section 31 and the arc-shaped section 32 can also be separately arranged and then connected as one piece by welding or bonding; this is not limited here.

[0099] It is understandable that the second side portion 3 and the first side portion 2 can also be separately configured, that is, the second side portion 3 can be configured as an independent component and then connected to the first side portion 2 in other ways. In one embodiment, such as Figure 8 As shown, the second side 3 is detachably connected to the first side 2; or, the second side 3 is welded or bonded to the first side 2, which is not limited here.

[0100] In this embodiment, the second side portion 3 may be located on the side of the first side portion 2 facing the cavity 11. Of course, in other embodiments, the second side portion 3 may also be located on the side of the first side portion 2 facing away from the cavity 11, and this is not limited here.

[0101] To save materials and facilitate compatibility with the structure of the sound-generating device 900, in one embodiment, such as Figure 1 , Figure 2 , Figures 8 to 10 As shown, the first side portion 2 is also provided with an opening 24 communicating with the cavity 11. It is understood that the opening 24 can be located at the position corresponding to either the long side or the short side of the first side portion 2, and this is not limited here. Optionally, the opening 24 and the notch 21 are spaced apart. In this embodiment, the opening 24 completely penetrates the first side portion 2.

[0102] To further improve the connection stability between the second side portion 3 and the first side portion 2, in one embodiment, the second side portion 3 is further provided with a snap-fit ​​portion 34 near the opening 24, and the second side portion 3 is snap-fitted to the first side portion 2 near the opening 24 through the snap-fit ​​portion 34.

[0103] In this embodiment, as Figure 1 , Figure 2 , Figure 6 , Figure 7 and Figure 8 As shown, by means of the snap-fit ​​portion 34 adjacent to the second side portion 3, the second side portion 3 can be further connected to the first side portion 2 via the snap-fit ​​portion 34. Optionally, the snap-fit ​​portion 34 is provided on the straight section 31.

[0104] Optionally, such as Figure 6 As shown, the latching portion 34 is bent into the opening 24 from one end of the second side portion 3 adjacent to the opening 24 to form a latch, so that the latching portion 34 and the second side portion 3 surround and form a limiting groove, and one end of the first side portion 2 adjacent to the opening 24 is limited to the limiting groove. Of course, in other embodiments, the latching portion 34 can also be a snap-fit ​​structure, which is not limited here.

[0105] In one embodiment, such as Figures 1 to 8 As shown, the first through hole 22 is a strip-shaped hole, and the second through hole 311 is a strip-shaped hole. The extension direction of the first through hole 22 and the extension direction of the second through hole 311 are set at an angle.

[0106] In this embodiment, the first through hole 22 can extend along the periphery of the first side portion 2, and the second through hole 311 can extend in a direction perpendicular to the bottom 1, such that the extending direction of the first through hole 22 and the extending direction of the second through hole 311 are at an angle. Optionally, the extending direction of the first through hole 22 and the extending direction of the second through hole 311 are perpendicular, which is not limited here.

[0107] It should be noted that a portion of the first through hole 22 and a portion of the second through hole 311 are connected to form a venting micropore 4, the size of which is smaller than the outer diameter of the sound-absorbing particle. Optionally, in the extension direction perpendicular to the first through hole 22, the width of the first through hole 22 is smaller than the outer diameter of the sound-absorbing particle. In the extension direction perpendicular to the second through hole 311, the width of the second through hole 311 is smaller than the outer diameter of the sound-absorbing particle, thus ensuring that the size of the venting micropore 4 is smaller than the outer diameter of the sound-absorbing particle.

[0108] In one embodiment, a plurality of first through holes 22 are provided at intervals, and a plurality of second through holes 311 are provided at intervals. It is understood that each first through hole 22 communicates with at least two second through holes 311. Each second through hole 311 communicates with at least two first through holes 22. In this embodiment, the plurality of first through holes 22 extend in a direction parallel to the bottom 1, and the plurality of second through holes 311 extend in a direction perpendicular to the bottom 1.

[0109] It should be noted that, in order to ensure the structural strength of the first side portion 2, in one embodiment, the distance between two adjacent first through holes 22 is greater than or greater than the thickness of the first side portion 2. Optionally, the distance between two adjacent first through holes 22 is greater than or greater than 0.05 mm.

[0110] Understandably, the smaller the distance between adjacent first through holes 22, the more first through holes 22 can be provided on the first side portion 2, thereby increasing the opening ratio of the first side portion 2. To ensure the structural strength and opening ratio of the first side portion 2, the spacing between two adjacent first through holes 22 is greater than the thickness of the first side portion 2.

[0111] To ensure the structural strength of the second side portion 3, in one embodiment, the spacing between two adjacent second through holes 311 is greater than or greater than the thickness of the second side portion 3. Optionally, the spacing between two adjacent second through holes 311 is greater than or greater than 0.05 mm.

[0112] Understandably, the smaller the distance between adjacent second through holes 311, the more second through holes 311 can be provided on the second side portion 3, thereby increasing the opening ratio of the second side portion 3. To ensure the structural strength and opening ratio of the second side portion 3, the spacing between two adjacent second through holes 311 is greater than the thickness of the second side portion 3.

[0113] like Figures 9 to 11As shown, the present invention also proposes a sound-generating device 900, which includes a housing 500, the aforementioned metal breathable insulating member 100, a magnetic circuit system 600, and a vibration system 700. The specific structure of the metal breathable insulating member 100 is as described in the foregoing embodiments. Since the sound-generating device 900 adopts all the technical solutions of all the foregoing embodiments, it has at least all the beneficial effects brought about by the technical solutions of the foregoing embodiments, which will not be described in detail here.

[0114] In one embodiment, a metal breathable isolator 100 is connected to a housing 500, a magnetic circuit system 600 is connected to a housing 500, and a vibration system 700 is connected to the side of the housing 500 facing away from the magnetic circuit system 600 and opposite to the magnetic circuit system 600. The vibration system 700, the housing 500, the metal breathable isolator 100, and the magnetic circuit system 600 enclose a sound cavity 800, which communicates with the vent hole 321 and the first through hole 22 of the metal breathable isolator 100.

[0115] In this embodiment, the outer casing 500 is used to install, fix, support, and protect components such as the vibration system 700 and the magnetic circuit system 600; that is, the outer casing 500 provides a mounting base for components such as the vibration system 700 and the magnetic circuit system 600. It is understood that the outer casing 500 can be a mounting shell, housing, or box with a mounting cavity, etc., and is not limited thereto.

[0116] Understandably, the outer casing 500 can be entirely composed of a metal support frame, which is fixedly connected to the magnetic circuit system 600 by means of bonding or welding. Of course, in other embodiments, the outer casing 500 can be composed of a metal support frame and an injection-molded part, which can be bonded together or integrally injection molded; this is not limited here. Also, in other embodiments, the outer casing 500 can be entirely composed of an injection-molded part; this is not limited here.

[0117] In this embodiment, it is understood that by setting the outer casing 500 as a metal support, the support strength is improved. Simultaneously, the metal support uses thin metal sheets to effectively reduce the thickness of the outer casing 500, thereby increasing the volume of the acoustic cavity 800 of the sound-generating device 900 and improving the acoustic performance of the sound-generating device 900. Furthermore, the connection between the metal support of the outer casing 500 and the magnetic circuit system 600 also improves the heat dissipation effect of the sound-generating device 900.

[0118] In this embodiment, as Figures 9 to 11As shown, the magnetic circuit system 600 is provided with a magnetic gap, and the vibration system 700 includes a diaphragm and a voice coil connected to the diaphragm. The voice coil is suspended within the magnetic gap, thus enabling the voice coil to conduct to an external circuit. Electrical energy is transferred from the voice coil to the magnetic gap of the magnetic circuit system 600, causing the magnetic field generated by the magnetic circuit system 600 to convert the electrical energy into mechanical energy. This causes the voice coil to vibrate, which in turn drives the diaphragm to vibrate and produce sound, further converting mechanical energy into sound energy. In other words, after receiving a changing alternating current signal from the outside, the voice coil, driven by the magnetic field force of the magnetic circuit system 600, reciprocates and cuts magnetic lines of force, causing the diaphragm of the vibration system 700 to vibrate and produce sound.

[0119] Understandably, in order to improve the structural strength of the diaphragm and reduce its weight, a perforated hole is provided in the center of the diaphragm. The vibration system 700 includes a reinforcing member or dome connected to the diaphragm, which covers the perforated hole in the center of the diaphragm.

[0120] In this embodiment, the vibration system 700 and magnetic circuit system 600 of the sound-generating device 900 enclose a sound cavity 800. By providing venting micropores 4 on the metal breathable insulating member 100, the sound-generating device 900 connects the sound cavity 800 to the external environment through the venting micropores 4. Thus, when the voice coil of the vibration system 700 drives the diaphragm to vibrate, the pressure within the sound cavity 800 can be balanced through the venting micropores 4. It is understood that when the sound-generating device 900 is applied to electronic devices or modules, sound-absorbing particles are typically filled in to further improve the acoustic performance of the electronic devices or modules.

[0121] To prevent sound-absorbing particles from entering the sound-generating device 900 through the venting micropores 4 and affecting the performance of the sound-generating device 900, the diameter of the venting micropores 4 is smaller than the diameter of the sound-absorbing particles. Optionally, the shape of the venting micropores 4 can be circular, elliptical, triangular, square, or racetrack-shaped, etc., as long as the venting micropores 4 can prevent sound-absorbing particles from passing through, and there is no limitation here.

[0122] Understandably, to prevent the voice coil from being polarized or swaying left and right during vibration, in this embodiment, the vibration system 700 also includes a centering support. One end of the centering support is connected to the end of the voice coil away from the diaphragm, and the other end of the centering support is connected to the outer casing 500. By providing the centering support, the polarization or swaying left and right of the voice coil during vibration can be effectively prevented, thereby improving the sound production effect of the diaphragm.

[0123] In one embodiment, the magnetic circuit system 600 includes a magnetic yoke and a central magnetic circuit portion and a side magnetic circuit portion having the magnetic yoke. The side magnetic circuit portion is located outside the central magnetic circuit portion and is spaced apart from the central magnetic circuit portion to form a magnetic gap. The side magnetic circuit portion is connected to the housing 500.

[0124] The present invention also proposes a sound-generating module, which includes a sound-generating device 900 and a module housing. The specific structure of the sound-generating device 900 is as described in the foregoing embodiments. Since the sound-generating module adopts all the technical solutions of all the foregoing embodiments, it has at least all the beneficial effects brought about by the technical solutions of the foregoing embodiments, which will not be described in detail here.

[0125] In one embodiment, the module housing has an inner cavity and a sound outlet communicating with the inner cavity. A sound-generating device 900 is disposed in the inner cavity. The sound-generating device 900 cooperates with the module housing to divide the inner cavity into a front sound cavity and a rear sound cavity. The front sound cavity is communicating with the sound outlet, and the rear sound cavity is communicating with the sound cavity 800 of the sound-generating device 900. The rear sound cavity is filled with sound-absorbing particles, and the outer diameter of the sound-absorbing particles is larger than the diameter of the vent hole 321 of the sound-generating device 900.

[0126] The present invention also proposes an electronic device, which includes a device housing and the aforementioned sound-emitting module, wherein the sound-emitting module is disposed in the device housing. The specific structure of the sound-emitting module is as described in the foregoing embodiments. Since this electronic device adopts all the technical solutions of all the foregoing embodiments, it has at least all the beneficial effects brought about by the technical solutions of the foregoing embodiments, which will not be elaborated here.

[0127] The present invention also proposes an electronic device, which includes a device housing and the aforementioned sound-generating device 900, wherein the sound-generating device 900 is disposed in the device housing. The specific structure of the sound-generating device 900 is as described in the foregoing embodiments. Since this electronic device adopts all the technical solutions of all the foregoing embodiments, it has at least all the beneficial effects brought about by the technical solutions of the foregoing embodiments, which will not be described in detail here.

[0128] Optionally, the aforementioned electronic devices may be mobile phones, tablets, computers, wearable devices, etc.

[0129] The above description is merely an optional embodiment of the present invention and does not limit the patent scope of the present invention. Any equivalent structural transformations made under the concept of the present invention using the description and drawings of the present invention, or direct / indirect applications in other related technical fields, are included within the patent protection scope of the present invention.

Claims

1. A breathable metal insulating component, used in a sound-generating device, characterized in that, The metal breathable insulating component includes: The bottom has rounded corners; A first side portion, located at the edge of the bottom and forming a cavity with the bottom, has a notch corresponding to the rounded corner, and also has a first through hole communicating with the cavity; and The second side portion is stacked on top of the first side portion, and at least part of the second side portion covers the notch and is provided with a vent hole communicating with the cavity; The bottom and the first side are integrally formed, and the first side is formed by bending the periphery of the bottom. The second side includes a straight section, an arc section and a bent section. The arc section is connected to the straight section. The arc section is provided with the ventilation hole corresponding to the notch. The bent section connects the straight section and the first side. The bent section is located on the side of the straight section and the first side away from the bottom.

2. The metal breathable insulating component as described in claim 1, characterized in that, The straight section is provided with a second through hole, and part of the first through hole and part of the second through hole are connected to form a venting microhole that connects the cavity.

3. The metal breathable insulating component as described in claim 2, characterized in that, The bottom has multiple rounded corner positions, and the multiple rounded corner positions are spaced apart. The first side portion has a notch corresponding to each of the rounded corner positions; The second side portion includes a plurality of straight segments and a plurality of arc segments, each arc segment corresponding to a notch, and two adjacent arc segments are connected by the straight segments.

4. The metal breathable insulating component as described in claim 2, characterized in that, The bending segment includes multiple bending segments, which are spaced apart. And / or, the straight section is recessed into at least one side of the bent section with a first groove; And / or, the first side portion is recessed into at least one side of the bent section with a second groove.

5. The metal breathable insulating component as described in claim 2, characterized in that, The first side portion, the bent section, and the straight section are integrally formed, and the second side portion is formed by bending the side of the first side portion away from the bottom in the bent section, so that the second side portion and the first side portion are stacked. And / or, the straight section and the arc-shaped section are integrally formed; or, the straight section and the arc-shaped section are welded or bonded together.

6. The metal breathable insulating component as described in claim 2, characterized in that, The first through hole is a strip-shaped hole, and the second through hole is a strip-shaped hole. The extension direction of the first through hole and the extension direction of the second through hole are set at an angle.

7. The metal breathable insulating component as described in claim 6, characterized in that, The first through hole includes multiple through holes, which are spaced apart; the second through hole includes multiple through holes, which are spaced apart. Each of the first through holes is connected to at least two of the second through holes; and / or, each of the second through holes is connected to at least two of the first through holes.

8. The metal breathable insulating component as described in claim 7, characterized in that, The spacing between two adjacent first through holes is greater than or greater than the thickness of the first side portion; And / or, the spacing between two adjacent second through holes is greater than or greater than the thickness of the second side portion; And / or, the extension direction of the first through hole is perpendicular to the extension direction of the second through hole.

9. The metal breathable insulating component as described in claim 2, characterized in that, The shape of the vent is circular, elliptical, polygonal, or irregular; And / or, the pore size of the air vent is smaller than the outer diameter of the sound-absorbing particle; And / or, the pore size of the venting micropore is smaller than the outer diameter of the sound-absorbing particle.

10. The metal breathable insulating member as described in any one of claims 1 to 9, characterized in that, The first side portion is also provided with an opening that communicates with the cavity; The second side is also provided with a snap-fit ​​part near the opening, and the second side is snap-fitted to the first side near the opening through the snap-fit ​​part.

11. The metal breathable insulating component as described in claim 10, characterized in that, The snap-fit ​​portion is formed by bending one end of the second side portion adjacent to the opening toward the opening to form a snap hook; Alternatively, the snap-fit ​​part may be a snap-fit ​​structure.

12. The metal breathable insulating member as described in any one of claims 1 to 9, characterized in that, The second side is located on the side of the first side facing the cavity; or, the second side is located on the side of the first side facing away from the cavity.

13. A sound-generating device, characterized in that, The sound-generating device includes: shell; The metal breathable insulating member as described in any one of claims 1 to 12, wherein the metal breathable insulating member is connected to the housing; A magnetic circuit system connected to the housing; A vibration system is connected to the side of the housing facing away from the magnetic circuit system and opposite to the magnetic circuit system. The vibration system, the housing, the metal breathable isolation component, and the magnetic circuit system enclose a sound cavity, which is connected to the vent hole and the first through hole of the metal breathable isolation component.

14. A sound-generating module, characterized in that, The sound-generating module includes: A sound-generating device, wherein the sound-generating device is the sound-generating device according to claim 13; and The module housing has an inner cavity and a sound outlet communicating with the inner cavity. The sound-generating device is disposed in the inner cavity. The sound-generating device cooperates with the module housing to divide the inner cavity into a front sound cavity and a rear sound cavity. The front sound cavity is communicating with the sound outlet, and the rear sound cavity is communicating with the sound cavity of the sound-generating device. The rear sound cavity is filled with sound-absorbing particles, and the outer diameter of the sound-absorbing particles is larger than the diameter of the vent hole of the sound-generating device.

15. An electronic device, characterized in that, The electronic device includes a device housing and a sound-generating module as described in claim 14, wherein the sound-generating module is disposed in the device housing; Alternatively, the electronic device may include a device housing and a sound-generating device as described in claim 13, the sound-generating device being disposed within the device housing.

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