CN113934127A

CN113934127A - Dustproof components, electronics and smart watches

Info

Publication number: CN113934127A
Application number: CN202010611589.4A
Authority: CN
Inventors: 耿景卓; 胡江华
Original assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Current assignee: Guangdong Oppo Mobile Telecommunications Corp Ltd
Priority date: 2020-06-29
Filing date: 2020-06-29
Publication date: 2022-01-14

Abstract

An embodiment of the present application provides a dust-proof assembly, including a dust-proof net and a sealing net, the sealing net includes a support portion and a flexible sealing body, the support portion is provided with a plurality of through holes, the dust-proof net is arranged opposite to the support portion, and the anti-dust net is arranged opposite to the support portion. The dust net is connected to the support portion, and the flexible sealing body is connected to the support portion and at least partially protrudes from the dust net. By forming a flexible sealing body on the support part of the sealing net, it can be attached to the casing of the electronic device during application, thereby improving the sealing performance of the dustproof assembly. At the same time, the dustproof net and the sealing net are arranged opposite to each other, and can be pre-assembled to form an integrated structure. When applied to electronic equipment, the effect of modular assembly can be realized, and the assembly convenience is improved. The electronic device or smart watch using the dust-proof component can have better dust-proof effect, so as to avoid the influence of dust on the electro-acoustic components in the casing. Meanwhile, the embodiments of the present application also provide an electronic device and a smart watch.

Description

Dustproof assembly, electronic equipment and intelligent wrist-watch

Technical Field

The application relates to the technical field of dust prevention, and in particular relates to a dust prevention assembly, electronic equipment and an intelligent watch.

Background

At present, along with the rapid development of electronic equipment technologies such as watches, electronic equipment becomes more and more intelligent, and especially electronic equipment such as multifunctional intelligent watches and mobile terminals is more popular with people and can not be separated from the life of people gradually. For example, in recent years, smart watches have been increasingly hot, and various smart watch manufacturers have successively released various smart watches.

In electronic devices such as mobile terminals and smart watches, generally, acoustic components such as microphones and speakers are disposed, acoustic holes need to be formed in the components, and external dust may enter the holes to cause blockage.

Disclosure of Invention

An object of this application is to provide a dustproof subassembly, electronic equipment and intelligent wrist-watch to improve dustproof effect.

In a first aspect, an embodiment of the present application provides a dustproof assembly, including dustproof net and sealing net, the sealing net includes supporting part and flexible seal, and the supporting part is provided with a plurality of through-holes, and the dustproof net sets up with the supporting part relatively, and the dustproof net is connected in the supporting part, and flexible seal connects the supporting part and at least partially stands out in the dustproof net.

In a second aspect, the embodiment of the application provides an electronic device, including casing, electroacoustic component and foretell dustproof component, the casing is provided with the sound hole, and the electroacoustic component sets up in the casing to pass through the sound hole and pass through sound, dustproof component sets up in the casing, flexible seal butt in the casing, and the dust screen sets up and covers the sound hole completely towards the sound hole.

The third aspect, this application embodiment provides an intelligence wrist-watch, including casing, electroacoustic component and foretell dustproof component, the casing is provided with the sound hole, and the electroacoustic component sets up in the casing to pass through the sound hole and pass through the sound, dustproof component sets up in the casing, flexible seal butt in the casing, and the dust screen sets up and covers the sound hole completely towards the sound hole.

The application provides a dustproof subassembly, electronic equipment and intelligent wrist-watch through forming flexible seal on the supporting part at the sealing net, can laminate with electronic equipment's casing when using, and then improve dustproof subassembly's leakproofness. Meanwhile, the dust screen and the sealing screen are arranged oppositely, can be assembled in advance to form an integrated structure, and when the dust screen and the sealing screen are applied to electronic equipment, the effect of modular assembly can be achieved, and the assembly convenience is improved. Electronic equipment or intelligent wrist-watch of using this dustproof subassembly can have better dustproof effect, avoids dust to cause the influence to the electroacoustic subassembly in the casing.

These and other aspects of the present application will be more readily apparent from the following description of the embodiments.

Drawings

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

Fig. 1 is a schematic diagram of a split structure of an electronic device according to an embodiment of the present application;

FIG. 2 is a schematic cross-sectional view of the electronic device shown in FIG. 1;

FIG. 3 is an enlarged schematic view of FIG. 2 at III;

fig. 4 is a schematic view of a disassembled structure of a dustproof assembly provided in an embodiment of the present application;

FIG. 5 is a schematic view of a disassembled structure of a sealing net of the dust prevention assembly in the embodiment shown in FIG. 4;

fig. 6 is a schematic cross-sectional view of a dustproof assembly according to an embodiment of the present disclosure.

Detailed Description

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

In the electronic equipment such as current intelligent wrist-watch, be provided with subassembly such as electroacoustic subassembly usually, this makes and need set up the sound hole on the casing of electronic equipment such as intelligent wrist-watch, owing to set up the sound hole, during dust in the air probably gets into electronic equipment from the sound hole, causes harmful effects to the components and parts in the electronic equipment. When the existing dustproof assembly is installed, the existing dustproof assembly needs to be attached to the shell independently, an additional waterproof sealing piece needs to be arranged to achieve water prevention, and the assembling process is complex.

Therefore, the inventor proposes the dust-proof assembly, the electronic device and the smart watch in the embodiment of the application. Embodiments of the present application will be described in detail below with reference to the accompanying drawings.

Referring to fig. 1, the present embodiment provides an electronic device 10, wherein the electronic device 10 may be a mobile phone or a smart phone (e.g., an iPhone-based phone), a Portable game device (e.g., Nintendo DS, PlayStation Portable, game Advance, iPhone), a laptop, a PDA, a Portable internet device, a music player, a data storage device, other handheld devices, and a Head Mounted Device (HMD) such as a watch, a headset, a pendant, an earphone, etc., and the electronic device 10 may also be other wearable devices (e.g., a Head Mounted Device (HMD) such as electronic glasses, electronic clothes, an electronic bracelet, an electronic necklace, an electronic tattoo, the electronic device 10, or a smart watch). In this embodiment, the electronic device 10 is a smart watch, which is only an example, and the following description will be made by taking a smart watch as an example.

The electronic device 10 includes a housing 100, a watch strap (not shown), an electroacoustic assembly 200, and a dust-proof assembly 300, wherein the watch strap is connected to the housing 100 and is used for being worn on the wrist of a user, the electroacoustic assembly 200 and the dust-proof assembly 300 are both disposed in the housing 100, and the dust-proof assembly 300 is used for preventing dust for the electroacoustic assembly 200.

Referring to fig. 1 and fig. 2, the housing 100 includes a middle plate 110 and a frame 120, the frame 120 surrounds the middle plate 110 and is connected to the middle plate 110, and the middle plate 110 may be configured to have various types of components, such as a motherboard, a chip, a battery, and the like. The bezel 120 may be used to form an antenna, control buttons, etc. In some embodiments, the middle plate 110 may be configured in various shapes such as a substantially circular shape, an oval shape, an oblong shape, a square shape, a polygonal shape, etc., a corresponding frame 120 is enclosed in the middle plate 110 and connected to an edge of the middle plate 110, and the frame 120 is enclosed in a shape that is adapted to the middle plate 110. The watchband can be various materials such as metal, plastics, leather, synthetic leather, do not do the restriction here to the watchband can be set up to the form that can adjust length in order to adapt to different users' wrist.

Referring to fig. 2, the casing 100 is provided with a sound hole 121, the sound hole 121 is disposed through the frame 120, and the sound hole 121 is used for conducting sound to form a sound wave conduction channel. The sound hole 121 may be a circular hole, an elongated circular hole, or the like, which is not limited herein. The electro-acoustic assembly 200 is disposed within the housing 100 and is configured to emit sound through the sound hole 121. The electroacoustic assembly 200 may be a sound receiving element such as a microphone, and then external sound may enter the housing 100 through the sound hole 121 and be received by the microphone; or a sound generating element such as a speaker, etc., in which case the sound generated from the speaker can be conducted to the outside of the casing 100 through the sound hole 121.

Referring to fig. 3, as an embodiment, the sound hole 121 is opened in the frame 120, the sound hole 121 includes a first hole portion 1211 and a second hole portion 1212 that are communicated with each other, the first hole portion 1211 penetrates through an outer surface of the frame 120, the second hole portion 1212 penetrates through an inner surface of the frame 120, and an extending direction of the first hole portion 1211 is bent with respect to the second hole portion 1212. The advantages of such an arrangement are: since the sound hole 121 is not extended along a straight line as a whole and has a bend formed therein, when external dust, foreign substances, etc. enter the first hole portion 1211 of the sound hole 121, they do not easily move to the second hole portion 1212 and finally enter the interior of the housing 100, thereby preventing the foreign substances from being accumulated at the dust-proof assembly 300, and further improving the dust-proof and water-proof effects. It is understood that in other embodiments, the sound hole 121 may have at least two bends, so as to further prevent external dust, impurities, etc. from entering into the position near the dust-proof assembly 300 to form a pile. And in other embodiments, the sound holes 121 may not be provided with bends, but may be provided to extend along a straight line.

Referring to fig. 2 and 4, the dust-proof assembly 300 includes a dust-proof net 310 and a sealing net 320, the dust-proof net 310 has a plurality of guiding holes 311, the diameter of the guiding holes 311 may be 0.5-5mm, the plurality of guiding holes 311 are spaced apart, and the plurality of guiding holes 311 may be arranged regularly or irregularly. The dust screen 310 may be made of metal, plastic, etc. or formed by weaving, and formed in a substantially plate-like structure, and the configuration of the dust screen 310 may be matched to the cross-section of the sound holes 121 so that the dust screen 310 can completely cover the sound holes 121. And the dust screen 310 may be slightly larger than the cross-sectional area of the sound holes 121.

Referring to fig. 4 and 5, the sealing net 320 includes a supporting portion 321 and a flexible sealing body 322, as one mode, the supporting portion 321 includes a central portion 3211 and an edge portion 3212, the edge portion 3212 surrounds the central portion 3211 and is connected to the central portion 3211, the central portion 3211 and the edge portion 3212 may be integrally formed to form a smooth connection, and of course, it is understood that the central portion 3211 and the edge portion 3212 may also be connected by welding or the like. In some embodiments, the cross-sectional area of the central portion 3211 may be substantially equal to that of the dust screen 310, the edge portion 3212 may be substantially annular, and the width of the edge portion 3212 along the radial direction of the supporting portion 321 is substantially smaller than the radial width of the central portion 3211, for example, the radial width of the edge portion 3212 is smaller than or equal to 1/5 of the radial width of the central portion 3211, it is understood that 1/5 is merely an example, and other values may be used. The supporting portion 321 may be made of a metal material, for example, so that the supporting portion 321 has sufficient rigidity to support the whole dustproof assembly 300, and the rigid supporting portion 321 may also have a piercing-proof function, so that when an external sharp object is inserted into the sound hole 121, the whole dustproof assembly 300 is not pierced, which improves the service life, and prevents a user from piercing the dustproof assembly 300 by inserting a poking needle into the sound hole 121 by mistake when the user removes a SIM card holder or the like with the poking needle.

In this embodiment, the supporting portion 321 is substantially in an oblong shape and is adapted to the sound hole 121, and it is understood that in other embodiments, the shape of the supporting portion 321 may be adapted, and is not limited herein. The central portion 3211 is provided with a plurality of through holes 3213, and the plurality of through holes 3213 may be regularly arranged or irregularly arranged. In some embodiments, the through holes 3213 on the central portion 3211 may be the same in number as the guide holes 311 on the dust screen 310, and the through holes 3213 and the guide holes 311 are arranged in a one-to-one correspondence manner, so that when sound is transmitted to the dust-proof component 300, the sound wave may be transmitted all the time along a straight line, thereby avoiding a large loss due to collision of sound wave energy with the dust-proof component during transmission, and improving a sound guiding effect. In some embodiments, the through holes 3213 of the central portion 3211 may be offset from the guiding holes 311 of the dust screen 310 by: the axis of any through hole 3213 does not coincide with the axis of any guide hole 311, and this arrangement is advantageous in that: when fine dust, foreign substances, etc. from the outside penetrate the dust-proof net 310, it is difficult to penetrate the center portion 3211 of the sealing net 320 at the same time, so that the dust-proof effect can be improved. The aperture of through hole 3213 may be the same as or different from the aperture of via hole 311.

In the plurality of through holes 3213, the hole diameters may be completely different, may be partially the same, may be partially different, or may be completely the same. In this embodiment, the aperture of a part of the through holes 3213 adjacent to the edge portion 3212 of the through holes 3213 is larger than that of the other through holes 3213, so that the through holes with a large aperture may be formed by stamping, the large through holes formed by stamping may be used to position the support portion 321, and then the through holes 3213 with a smaller aperture may be formed in the central portion 3211 by etching or etching, the smaller the aperture is, the better the dust-proof effect of the sealing net 320 is, and thus the dust-proof effect may be further improved.

Referring to fig. 4 and fig. 6, the flexible sealing body 322 is connected to the supporting portion 321 and at least partially protrudes from the dust-proof net 310, so that when the electronic device 10 is applied, the portion of the flexible sealing body 322 protruding from the dust-proof net 310 can be attached to the housing 100 to form a sealing structure. It is understood that the part protruding from the dust screen 310 means that the flexible sealing body 322 has a part protruding from the dust screen 310, and the part protruding from the dust screen 310 can be used to form a seal by being attached to the housing of the electronic device. In some embodiments, the flexible sealing body 322 may protrude from the dust screen 310 over the entire area surrounding the dust screen 310, where the portion protruding from the dust screen 310 may provide better sealing when engaged with the housing 100. In other embodiments, the flexible sealing body 322 may also protrude from the dust screen 310 over a portion of the area surrounding the dust screen 310, such as in a zigzag configuration, and may protrude from the dust screen 310 at intervals. In some embodiments, the flexible sealing body 322 may be directly connected to the side of the support portion 321 facing the dust screen 310 and disposed around the dust screen 310. As an embodiment, the flexible sealing body 322 may be connected to the edge portion 3212 of the supporting portion 321.

The flexible sealing body 322 is made of a flexible material and thus has a certain ability to deform. The flexible sealing body 322 can be made of, for example, silica gel or other plastic soft glue, and can be combined to the edge portion 3212 in an injection molding manner, so that the connection between the flexible sealing body 322 and the supporting portion 321 is tighter, a larger gap is avoided from being formed, and the dustproof effect is further improved.

In some embodiments, the flexible sealing body 322 may include a first flexible body 3221 and a second flexible body 3222, the first flexible body 3221 being disposed on a surface of the supporting portion facing the dust screen 310, the first flexible body 3221 being disposed around the dust screen 310 and protruding from the dust screen 310, and the second portion being disposed on a surface of the supporting portion facing away from the dust screen 310. The first flexible body 3221 may be configured to be attached to the housing, and the second flexible body 3222 may be configured to be attached to the electrical sound component 200, at this time, the dust-proof component 300 may form a better sealing structure between the housing 100 and the electrical sound component 200, so that a good sealing effect is achieved on a path through which sound waves are transmitted into the electrical sound component 200 or transmitted out of the electrical sound component 200 through the sound hole. As an embodiment, the first flexible body 3221 may be connected to the edge portion 3212, the second flexible body 3222 may be connected to the edge portion 3212, and the first flexible body 3221 and the second flexible body 3222 may have a substantially symmetrical structure, it being understood that in other embodiments, the second flexible body 3222 may not be provided.

In some embodiments, the flexible sealing body 322 may further include a connecting portion 3220, the connecting portion 3220 is connected between the first flexible body 3221 and the second flexible body 3222 and covers a side edge of the supporting portion 321, that is, the first flexible body 3221, the second flexible body 3222 and the connecting portion 3220 enclose a groove-like structure, an edge portion of the supporting portion 321 is embedded in the groove-like structure and fixed relative to the flexible sealing body 322, and the through hole of the central portion 3211 is located in an annular region enclosed by the first flexible body 3221 and the second flexible body 3222. The flexible sealing body 322 forms a covering structure for the edge portion 3212, and since the first flexible body 3221 surrounds the dust screen 310 and protrudes from the dust screen 310, the flexible sealing body 322 can also protect the dust screen 310. In other embodiments, the connecting portion 3220 may not be provided, and in this case, the first flexible body 3221 and the second flexible body 3222 may be directly connected to the edge portion 3212 by bonding or the like.

Referring to fig. 5 and 6 again, as an embodiment, in order to further improve the combining force between the flexible sealing body 322 and the supporting portion 321, in some embodiments, the edge portion 3212 is provided with a plurality of serrations 3214, and the serrations 3214 protrude from the edge portion 3212 along the radial direction of the edge portion 3212. Through setting up sawtooth 3214, when the side edge of connecting portion cladding bracing part, the sawtooth can imbed in the connecting portion, forms more stable connection structure.

In some embodiments, the flexible sealing body 322 and the supporting portion 321 may be integrally combined by injection molding to enhance the connection strength therebetween and avoid forming a gap between the flexible sealing body 322 and the supporting portion 321, thereby enhancing the sealing property. In particular, when the flexible sealing body 322 includes the connecting portion 3220 and the supporting portion 321 is provided with the saw teeth 3214, during the injection molding process, the plastic forming the flexible sealing body 322 may flow between two adjacent saw teeth 3214 and combine with the saw teeth 3214, so as to form the flexible sealing body 322, wherein the saw teeth 3214 are embedded in the flexible sealing body 322, and the flexible sealing body 322 is embedded between the adjacent saw teeth 3214, both of which form a structure similar to a mortise and tenon, so that the combination force is greater and more stable.

In some embodiments, the end of each saw tooth 3214 away from the supporting portion 321 may form a barb-like structure, and the barb-like structure refers to a slight hook-like structure formed at the end of the saw tooth 3214 away from the supporting portion 321, similar to a barb of a fish hook, so as to better improve the coupling force between the flexible sealing body 322 and the supporting portion 321 and prevent the flexible sealing body 322 and the supporting portion 321 from falling off. The saw teeth 3214 and the through holes 3213 may be formed in the supporting portion 321 by stamping or the like.

The flexible sealing body 322 may be joined to the support portion 321 by bonding or the like.

Referring to fig. 6, the dust screen 310 is disposed opposite to the sealing screen 320, and the dust screen 310 is spaced from the central portion 3211 to form a cavity between the dust screen 310 and the supporting portion 321, where the cavity can serve to contain a part of dust, and when external dust enters the cavity through the dust screen 310, the dust may fly around and deposit in the cavity due to the increased space, and the dust does not directly enter the casing 100 through the through hole 3212, and does not enter the audio module 200. Specifically, the dust screen 310 substantially corresponds to the central portion 3211, that is, an orthogonal projection of the dust screen 310 on the support portion 321 substantially overlaps the central portion 3211.

In some embodiments, the dust-proof assembly 100 further includes an adhesive layer 301, the dust-proof net 310 is adhered to the central portion 3211 of the supporting portion 321 through the adhesive layer 301, the adhesive layer 301 is disposed only in a partial region of the supporting portion 321, and the adhesive layer 301 surrounds the plurality of through holes 3213, such that the through holes 3212 can be exposed. Since the adhesive layer 301 is present only in a partial region of the support portion 321, the dust screen 310 and the central portion 3211 of the support portion 321 form a gap, and the gap has the same width as the thickness of the adhesive layer 301. Because the dust screen 310 and the supporting portion 321 are arranged at intervals, a cavity is defined among the adhesive layer 301, the dust screen 310 and the supporting portion 321, so that the advantages of the arrangement are that: even there is tiny dust or impurity to enter into dustproof subassembly 300 through guide hole 311, also can deposit in the cavity between dust screen 310 and supporting part 321, and can not enter into inside casing 100 through-hole 3213, and viscose layer 301 is because having viscidity simultaneously, and dust is adsorbed when being close to viscose layer 301, and the dust that gets into in the cavity also can not block up through-hole 3213, both can improve dustproof effect, can guarantee sound wave conduction quality again. Meanwhile, due to the existence of the cavity, when the electroacoustic component 200 generates sound, sound waves are transmitted into the cavity through the through hole 3213 or the guide hole 311 to form an echo effect, so that the sound effect can be improved.

In order to reduce the volume occupied by the dust-proof component 300, the space between the dust-proof net 310 and the sealing net 320 may be set to be smaller than 1-2mm, for example, on one hand, the adhesive layer 301 with the above thickness can ensure sufficient adhesion between the dust-proof net 310 and the sealing net 320, and on the other hand, the space is too large, so that the dust-proof component 300 has too large thickness and occupies a large space inside the electronic device 10.

In some embodiments, the distance between the dust screen 310 and the central portion 3211 is less than or equal to the thickness of the flexible sealing body 322, and the flexible sealing body 322 contacts the outer periphery of the dust screen 310 during injection molding with the support portion 321, so that the outer periphery of the dust screen 310 is embedded in the flexible sealing body 322, which further improves the sealing performance of the dust-proof assembly 300.

In other embodiments, the space between the dust screen 310 and the support 321 may be completely filled with the adhesive layer 301, and only the through hole 3213 and the guide hole 311 form a hole-shaped communication, so that the connection strength between the dust screen 310 and the support 321 may be increased, and the stability of the entire dust-proof assembly 300 may be improved. Meanwhile, as the amount of glue on the adhesive layer 301 is increased, when dust enters between the dust screen 310 and the supporting portion 321, the dust is adsorbed by the adhesive layer 301, and the dust-proof effect is improved.

In some embodiments, the dust screen 310 may also be connected to the supporting portion 321 by welding or the like, for example, the edge of the dust screen 310 is welded to the supporting portion 321 by lap welding, and a cavity may be formed between the dust screen 310 and the supporting portion 321.

In use, the dust screen 310 of the dust-proof assembly 300 is attached to the bezel 120 and completely covers the sound holes 121, so that dust, impurities, etc. entering the interior of the housing 100 from the sound holes 121 are blocked by the dust screen 310. To improve the sealing performance of the dust cap assembly 300, the first flexible body 3221 of the flexible sealing body 322 is also abutted against the bezel 120 during installation to improve the sealing performance. Therefore, in some embodiments, in the natural state of the flexible sealing body 322, the first flexible body 3221 of the flexible sealing body 322 protrudes from the surface of the dust screen 310 away from the supporting portion 321, or is flush with the surface of the dust screen 310 away from the supporting portion 321, so that when the dust screen 310 is attached to the bezel 120 of the electronic device 10, the flexible sealing body 322 is also attached to the bezel 120, thereby forming a double sealing function. Because the flexible sealing body 322 is of a non-porous and compact structure and is integrally arranged outside the dustproof net 310, after being attached to the frame 120 of the housing 100, the flexible sealing body can play a waterproof role, and the double-prevention effect of the dustproof assembly 300 is realized.

In one embodiment, the first flexible body 3221 or the second flexible body 3222 is formed with a protruding rib 3223, and it is understood that the protruding rib 3223 may be formed only on the first flexible body 3221 or only on the second flexible body 3222. As an embodiment, in this embodiment, the convex rib 3223 is formed on the first flexible body 3221 and the second flexible body 3222, and the convex rib 3223 protrudes from the first flexible body 3221 and the second flexible body 3222 along the axial direction of the through hole 3213, and the convex rib 3223 on the first flexible body 3221 and the convex rib 3223 on the second flexible body 3222 protrude in a direction away from each other. And one or more ribs 3223 may be disposed on the first flexible body 3221, and a plurality of ribs 3223 may be disposed side by side, in some embodiments, each rib 3223 is annular and disposed around the central portion 3211, and in other embodiments, each rib 3223 may also be discontinuous and disposed around the central portion 3211.

Referring to fig. 3 and fig. 6, the ribs 3223 disposed on the first flexible body 3221 protrude from the surface of the dust screen 310 away from the supporting portion 321, so that when the dust screen 310 is attached to the frame 120 of the electronic device 10, the ribs 3223 on the first flexible body 3221 of the flexible sealing body 322 are also attached to the frame 120 and are expanded. The ribs 3223 of the second flexible body 3222 may also abut against the electroacoustic assembly 200 to form a seal. When passing through the dustproof assembly 300, the sound waves are prevented from propagating towards other directions, and can only enter the sound hole 121 through the through hole 3213, the guide hole 311 and the like and propagate outwards; or from the sound hole 121 to the guide hole 311 and the through hole 3213 to the sound device in this order.

The longitudinal section of the ribs 3223 may be rectangular, or may be provided with other shapes, and as an embodiment, the longitudinal section of the ribs 3223 may be provided with a spike shape or a taper shape, a truncated cone shape, etc. far away from the supporting portion 321, which is advantageous in that: when the ribs 3223 abut against the housing 100 or the sound component 200, the flexible sealing body 322 may have better deformation capability, so that the flexible sealing body 322 can better adhere to the housing 100 or the sound component 200, and further provides better sealing performance.

In the above-mentioned dustproof assembly 300, the sealing net 320 can directly form a sealing structure by the supporting portion 321 and the flexible sealing body 322, and the dustproof net 310 and the sealing net 320 can be connected together in advance, so that the dustproof assembly 300 can be produced in a modularized manner in the production and assembly processes, and when the dustproof assembly is applied to electronic equipment 10 such as a smart watch, the dustproof assembly 300 can be directly and integrally assembled, and the assembly is simpler and more convenient. And because the flexible sealing body 322 can contact and abut against the housing 100 of the electronic device 10 and the electroacoustic component 200 at the same time, the sealing performance of the dustproof component 300 is improved, and further, better waterproof and dustproof effects are achieved.

Referring to fig. 2 and 3 again, in the present embodiment, the electroacoustic assembly 200 is disposed on the middle plate 110 and abuts against the second flexible body 3222 of the flexible sealing body 322 to form a seal. In some embodiments, the dust-proof assembly 300 may be directly attached to the frame 120 by the adhesive layer 301 and abutted against the frame 120, so that the dust-proof net 310 covers the sound holes 121. In this embodiment, the microphone is disposed on the middle plate 110 and the dust-proof component 300 is integrally supported on the frame 120, so that the dust-proof net 310 covers the sound hole 121, that is, the dust-proof component 300 is not connected to the frame 120 through the adhesive layer 301, and is fixed on the frame 120 only by the pressing force of the electroacoustic component 200, which can reduce the usage of the adhesive layer 301 and reduce the thickness of the dust-proof component 300 during the overall assembly.

Referring to fig. 1 and fig. 2 again, as an embodiment, the electronic device 10 further includes a bracket 210, the bracket 210 is mounted on the middle plate 110, and the electroacoustic assembly 200 is mounted on the bracket 210 to form a fixed structure. The support 210 may be configured to fit the electro-acoustic assembly 200 such that the sound inlet/outlet of the electro-acoustic assembly 200 is disposed toward the sealing mesh 320 and the second flexible body 3222 of the flexible sealing body 322 forms a seal against the electro-acoustic assembly 200 when installed.

In some embodiments, referring to fig. 3, in order to further reduce the occupied space of the dust-proof assembly 300, a groove 122 is formed on the inner surface of the frame 120, the sound hole 121 is formed in the frame 120 and is communicated with the groove 122, the dust-proof assembly 300 is disposed in the groove 122, the groove 122 is formed on the inner surface of the frame 120, the sound hole 121 is formed in the frame 120 and is communicated with the groove 122, and the dust-proof assembly 300 is at least partially disposed in the groove 122. This kind of arrangement, on the one hand be convenient for fix a position dustproof subassembly 300, on the other hand can reduce dustproof subassembly 300 and invade the space of casing 100 inside, owing to receive the spacing of recess 122, dustproof subassembly 300's degree of freedom receives the influence simultaneously, only needs electroacoustic subassembly 200 to support dustproof subassembly 300 and can fix dustproof subassembly 300 completely. In some embodiments, the dust screen 310 and at least a portion of the flexible seal 322 are positioned within the recess 122 and abut the bezel 120. In this embodiment, the entire dust-proof component 300 is located in the recess 122 and tightly abuts against the electroacoustic component 200.

Referring to fig. 2 again, the housing 100 further includes a front case 140 and a rear cover 130, the front case 140 and the rear cover 130 are mounted on opposite sides of the middle frame, and form a receiving space for receiving various components with the middle frame, and the electroacoustic assembly 200 is received in the receiving space. The electronic device may further include a display screen 20, and the display screen 20 is mounted to a side of the housing 100 where the front case 140 is disposed and forms an assembly with the front case 140. In some embodiments, the sound holes 121 may also be opened on the front case 140 or the rear cover 130, further reducing the opening on the bezel 120.

Meanwhile, the electronic device 10 further includes a main board (not shown) disposed in the accommodating space, the main board being used for mounting various types of electrical components and electrically connected to the display screen 20 and the electroacoustic assembly 200. Specifically, in the present embodiment, it is understood that one or more display screens 20 may be provided in the present embodiment. It is understood that, although not shown in the drawings, the electronic device 10 in the present embodiment may further include more or less components, for example, a camera, an antenna, and other components.

The electronic device 10 provided in this embodiment may be a smart watch, a mobile terminal, or the like. Install dustproof subassembly 300 in it for carry out dustproof installation to vocal hole 121, because dustproof subassembly 300 is modular structure, assembly process is simple and convenient, and waterproof, dirt-proof leakproofness is better simultaneously.

The above description is only a preferred embodiment of the present application and is not intended to limit the present application, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, improvement and the like made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A dust prevention assembly, comprising:

a dust screen; and

the sealing net comprises a supporting portion and a flexible sealing body, the supporting portion is provided with a plurality of through holes, the dustproof net is arranged opposite to the supporting portion, the dustproof net is connected to the supporting portion, and the flexible sealing body is connected with the supporting portion and at least partially protrudes out of the dustproof net.

2. The dust-proof assembly of claim 1, wherein a cavity is formed between the dust screen and the support portion, and the through hole communicates with the cavity.

3. The dust-proof assembly of claim 1, further comprising an adhesive layer, wherein the dust screen is adhered to the support portion via the adhesive layer, and the adhesive layer surrounds the plurality of through holes.

4. The dust guard assembly of claim 1, wherein the flexible sealing body includes a first flexible body disposed on a surface of the support portion facing the dust screen, and a second flexible body disposed around and protruding from the dust screen, the second portion being disposed on a surface of the support portion facing away from the dust screen.

5. The dust control assembly of claim 4, wherein the flexible sealing body further comprises a connecting portion connected between the first and second flexible bodies and wrapping around a side edge of the support portion.

6. The dust control assembly of claim 5, wherein the flexible sealing body is bonded to the support portion by injection molding.

7. The dust-proof assembly according to claim 5, wherein the side edge of the supporting portion is provided with a plurality of saw teeth, the saw teeth protrude from the edge portion in a radial direction of the supporting portion, and the saw teeth are embedded in the connecting portion.

8. The dust control assembly of any one of claims 4-7, wherein the first or second flexible body is formed with ribs, the ribs on the first flexible body and the ribs on the second flexible body projecting in directions away from each other.

9. An electronic device, comprising:

a housing provided with a sound hole;

the electroacoustic component is arranged in the shell and transmits sound through the sound hole; and

the dust guard assembly of any one of claims 1-5, disposed within the housing, the flexible seal abutting the housing, and the dust screen disposed toward and completely covering the sound aperture.

10. The electronic device of claim 9, wherein the housing comprises a middle plate and a bezel, the bezel is disposed around the middle plate and connected to the middle plate, a groove is formed on an inner surface of the bezel, the sound hole is disposed in the bezel and communicates with the groove, and the dust-proof assembly is at least partially disposed in the groove.

11. The electronic device of claim 9, further comprising a cradle disposed within the housing, the electro-acoustic assembly being mounted to the cradle.

12. The electronic device according to claim 9, wherein the housing includes a middle plate and a frame, the frame is disposed around the middle plate and connected to the middle plate, the sound hole is disposed in the frame, the sound hole includes a first hole portion and a second hole portion that are communicated with each other, the first hole portion penetrates through an outer surface of the frame, the second hole portion penetrates through an inner surface of the frame, and an extending direction of the first hole portion is bent with respect to the second hole portion.

13. A smart watch, comprising:

a housing provided with a sound hole;

the electroacoustic component is arranged in the shell and emits sound through the sound hole; and