CN220210588U - Earphone - Google Patents

Abstract

The application discloses earphone includes: the shell, the vibrating diaphragm assembly and the basin stand are waterproof and breathable; the vibrating diaphragm assembly is arranged in the shell and divides the inner cavity of the shell into a front cavity and a rear cavity, and the front cavity is communicated with the outside; the vibrating diaphragm assembly comprises a basin frame, the edge part of the basin frame is in sealing connection with the inner wall of the shell, an airflow through hole is formed in the basin frame, and the airflow through hole is used for communicating the front cavity with the rear cavity; the basin stand waterproof ventilation piece is connected to the basin stand, and the basin stand waterproof ventilation piece covers the airflow through hole. Through basin frame waterproof ventilative spare with the air current through-hole cover, can be when improving the waterproof performance of earphone, can also improve the holistic acoustic performance of earphone.

Description

Earphone

Technical Field

The application relates to the technical field of earphones, in particular to an earphone.

Background

With the rapid development of the voice industry, consumers have increasingly higher requirements on waterproof performance and acoustic performance of headphones.

At present, functional components in the earphone are generally placed in a sealed cavity, and the overall waterproof performance of the earphone is improved through a sealing design. For example, the earphone is divided into a front cavity and a rear cavity, the front cavity is generally communicated with the outside, the rear cavity is sealed and isolated from the front cavity, and at the moment, even if outside liquid and impurities enter the front cavity, all functional components in the rear cavity are not affected.

However, since the acoustic performance of the earphone is related to the volume of its cavity, such a design that will be blocked affects the acoustic performance of the earphone.

Disclosure of Invention

The embodiment of the application provides an earphone, aims at improving the acoustic performance of the earphone and simultaneously can improve the waterproof performance of the earphone.

In a first aspect, embodiments of the present application provide an earphone, including:

a housing;

the vibrating diaphragm assembly is arranged in the shell and divides the inner cavity of the shell into a front cavity and a rear cavity, and the front cavity is communicated with the outside; the vibrating diaphragm assembly comprises a basin frame, the edge part of the basin frame is in sealing connection with the inner wall of the shell, an airflow through hole is formed in the basin frame, and the airflow through hole is used for communicating the front cavity with the rear cavity; and

the basin stand waterproof ventilation piece is connected to the basin stand, and the basin stand waterproof ventilation piece covers the airflow through hole.

The beneficial effects of this application are: the basin frame in the vibrating diaphragm assembly divides the inner cavity of the shell of the earphone into the front cavity and the rear cavity, the front cavity and the rear cavity are communicated through the airflow through holes, the air pressure in the two cavities is kept in an equilibrium state, and the acoustic performance is improved. Meanwhile, the basin stand is connected with the basin stand waterproof ventilation part, the airflow through holes are covered by the basin stand waterproof ventilation part, and under the condition that the airflow in the front cavity and the airflow in the rear cavity are allowed to flow so as to keep the air pressure balanced state, the basin stand waterproof ventilation part can also prevent liquid flowing into the front cavity from the outside from flowing into the rear cavity along the airflow through holes, so that the inside parts of the earphone are damaged due to damp, and the overall waterproof performance of the earphone is improved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and that other drawings may be obtained from the structures shown in these drawings without inventive effort to a person of ordinary skill in the art.

FIG. 1 is a schematic diagram of a local structure of an earphone according to an embodiment of the present application;

FIG. 2 is an enlarged view of a portion of FIG. 1 at A;

FIG. 3 is a partial enlarged view at B in FIG. 1;

fig. 4 is a chart of specification parameters of a waterproof and breathable mesh fabric involved in an earphone of the present application.

Reference numerals illustrate:

110. a housing; 111. a front cavity; 112. a rear cavity; 113. a front mouth; 1131. an annular groove; 114. a faying surface; 115. a vent hole; 120. a diaphragm assembly; 121. a basin stand; 122. an air flow through hole; 130. waterproof and breathable parts of the basin stand; 131. a first waterproof breathable mesh; 132. a second waterproof breathable mesh; 140. a front nozzle waterproof ventilation assembly; 141. a front mouth net; 1411. a main body portion; 1412. a bending part; 142. a third waterproof breathable mesh; 150. waterproof ventilative piece of gas pocket.

The realization, functional characteristics and advantages of the present application will be further described with reference to the embodiments, referring to the attached drawings.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the present application more apparent, the embodiments of the present application will be described in further detail below with reference to the accompanying drawings.

When the following description refers to the accompanying drawings, the same numbers in different drawings refer to the same or similar elements, unless otherwise indicated. The implementations described in the following exemplary examples are not representative of all implementations consistent with the present application. Rather, they are merely examples of apparatus and methods consistent with some of the aspects of the present application as detailed in the accompanying claims.

In the description of the present application, it should be understood that the terms "first," "second," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance. The specific meaning of the terms in this application will be understood by those of ordinary skill in the art in a specific context. Furthermore, in the description of the present application, unless otherwise indicated, "a plurality" means two or more. "and/or", describes an association relationship of an association object, and indicates that there may be three relationships, for example, a and/or B, and may indicate: a exists alone, A and B exist together, and B exists alone. The character "/" generally indicates that the context-dependent object is an "or" relationship.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in the description presented herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

To solve the above problem, please refer to fig. 1 to 3, a first aspect of the present application proposes an earphone, and in an embodiment of the present application, the earphone includes: a housing 110, a diaphragm assembly 120 and a basin stand waterproof and breathable member 130;

the diaphragm assembly 120 is arranged in the shell 110 and divides the inner cavity of the shell 110 into a front cavity 111 and a rear cavity 112, and the front cavity 111 is communicated with the outside; the diaphragm assembly 120 comprises a basin frame 121, the edge part of the basin frame 121 is connected with the inner wall of the shell 110 in a sealing way, an airflow through hole 122 is arranged on the basin frame 121, and the airflow through hole 122 communicates the front cavity 111 with the rear cavity 112; and

the frame waterproof and breathable member 130 is connected to the frame 121, and the frame waterproof and breathable member 130 covers the airflow through hole 122.

According to the embodiment of the application, the basin frame 121 in the vibrating diaphragm assembly 120 divides the inner cavity of the shell 110 of the earphone into the front cavity 111 and the rear cavity 112, the front cavity 111 and the rear cavity 112 are communicated through the airflow through hole 122, the air pressure in the two cavities is kept in an equilibrium state, and the acoustic performance is improved. Meanwhile, the basin frame 121 is connected with the basin frame waterproof and breathable piece 130, the airflow through holes 122 are covered by the basin frame waterproof and breathable piece 130, so that liquid flowing into the front cavity 111 from the outside is prevented from flowing into the rear cavity 112 along the airflow through holes 122, the inner parts of the earphone are damaged due to damp, and the overall waterproof performance of the earphone is improved.

Further, the shape, size, and the like of the front and rear chambers 111 and 112, and the material from which the housing 110 is made, etc. may not be limited. Because the acoustic performance of the earphone is related to the volume of the cavity, for example, when the earphone relates to the earphone structure, the larger cavity can improve the active noise reduction performance of the earphone structure, so that the shape and the volume of the cavity can be selected by a technician according to the research and development requirements. For example, to improve the crash resistance of the earphone, the housing 110 may be made of a metal material with good hardness. The airflow through holes 122 include, but are not limited to, circular holes, square holes, profiled holes, and the like. The waterproof and breathable member 130 of the tub may be made of a waterproof material having excellent breathability, such as waterproof and breathable mesh cloth. The waterproof breathable mesh cloth can resist larger water pressure, so that the waterproof effect is achieved.

It should be noted that the diaphragm assembly 120 may include a frame 121, a diaphragm, a magnet, a voice coil, and the like. The edge of the vibrating diaphragm is connected with the basin frame 121 in a sealing way; the magnet is fixedly connected with the basin frame 121 and is arranged on one side facing the front cavity 111; the magnet and the voice coil are arranged in a cavity formed by connecting the vibrating diaphragm and the basin frame 121; one side end of the voice coil is connected with the vibrating diaphragm. When the diaphragm assembly 120 receives the electrical signal, the alternating current passes through the voice coil on the unit, and the positive and negative electrical currents cause the voice coil to generate magnetic field reaction. At this time, under the interaction of the magnetic field of the magnet and the magnetic field of the voice coil, the voice coil vibrates, and then drives the diaphragm connected with the voice coil to vibrate, and sound waves and air flow are generated when the diaphragm vibrates, so that the sound production effect of the diaphragm assembly 120 is achieved. And due to the existence of the airflow through hole 122, the front cavity 111 is communicated with the rear cavity 112, so that the air pressure in the front cavity 111 and the air pressure in the rear cavity 112 are kept in an equilibrium state, and the acoustic performance of the earphone is further improved.

At this time, in order to ensure the sound emitting effect of the diaphragm assembly 120, the diaphragm must not be damaged, and the airflow through hole 122 may not be blocked, so the airflow through hole 122 needs to be far away from the diaphragm and the inner wall of the housing 110, which may be disposed between the outer side of the diaphragm and the inner wall of the housing 110.

Here, "covering" refers to covering the aperture of the airflow through hole 122 by the frame waterproof and breathable member 130, and by covering the aperture of the airflow through hole 122, liquid is prevented from flowing into the rear chamber 112 through the front chamber 111.

Next, an earphone in the present exemplary embodiment will be further described.

Referring to fig. 3, alternatively, the frame waterproof and breathable member 130 includes a first waterproof and breathable mesh 131 and a second waterproof and breathable mesh 132;

the first waterproof and breathable mesh cloth 131 and the second waterproof and breathable mesh cloth 132 are respectively connected to opposite surfaces of the tub frame 121 to cover both side openings of the airflow through hole 122, respectively. More specifically, in order to enhance the waterproof effect of the earphone, the liquid in the front chamber 111 is further prevented from flowing into the rear chamber 112 through the airflow through hole 122, and both of the opposite openings of the airflow through hole 122 are subjected to a covering process.

Further to the description, the waterproof and breathable frame member 130 is made of waterproof and breathable mesh materials, and the waterproof and breathable frame member 130 includes a first waterproof and breathable mesh 131 and a second waterproof and breathable mesh 132. The first waterproof and breathable mesh cloth 131 is fixedly attached to one side of the basin frame 121, and the second waterproof and breathable mesh cloth 132 is fixedly attached to the opposite side of the basin frame 121. The first waterproof and breathable mesh cloth 131 can cover one side opening of the airflow through hole 122, and prevent liquid entering the front cavity 111 from the outside from flowing into the airflow through hole 122; the second waterproof and breathable mesh 132 can cover the other side of the air-flow hole 122, and prevent the liquid existing in the front cavity 111 from entering the rear cavity 112 through the air-flow hole 122, and prevent the components in the rear cavity 112 from being damaged by moisture.

Optionally, the inner wall of the housing 110 is formed with an overlap surface 114 facing the rear cavity 112;

the edge of the basin frame 121 is in sealing contact with the joint surface 114, and one side edge of the first waterproof and breathable mesh cloth 131 is clamped between the edge of the basin frame 121 and the joint surface 114. More specifically, the edge of at least part of the first waterproof and breathable mesh cloth 131 is clamped between the edge of the basin frame 121 and the overlapping surface 114, so that the connection strength between the first waterproof and breathable mesh cloth 131 and the basin frame 121 can be improved, and the first waterproof and breathable mesh cloth 131 is prevented from falling off.

The edge portion of the tub 121 is required to be hermetically coupled with the inner wall of the housing 110, thereby preventing the liquid from flowing into the rear chamber 112 from the front chamber 111 or from the rear chamber 112 into the front chamber 111 through a gap therebetween. The side edges of the basin frame 121 may be directly bonded to the inner wall in a sealing manner, or other components, such as the first waterproof and breathable mesh 131, may be clamped between the basin frame 121 and the inner wall. In the case of clamping, it may be understood that one surface of the first waterproof and breathable mesh fabric 131 is in sealing fit connection with the inner wall, and the opposite surface is in sealing fit connection with the basin frame 121. Or in other embodiments, the edge of the basin frame 121 is bent and extended to form a bending portion, and the top end surface of the bending portion is in sealing fit connection with a part of the overlapping surface 114, at this time, a clamping groove is formed between a part of the edge of the basin frame 121 and a part of the overlapping surface 114, a part of the first waterproof and breathable mesh 131 is clamped in the clamping groove, and two opposite side surfaces of the first waterproof and breathable mesh 131 are respectively in fit connection with one side surface of the overlapping surface 114 and one side surface of the basin frame 121.

It should be noted that, in order to facilitate the sealing connection between the basin frame 121 and the inner wall of the housing 110, the inner wall of the housing 110 is provided with a protruding portion, the protruding portion is provided with a joint surface 114 facing the back cavity 112, the joint surface 114 is generally a flat surface, and a side surface of an edge portion of the basin frame 121 is also a flat surface, and the side surface of the basin frame 121 may be bonded to the joint surface 114, at this time, a side surface of the edge of the basin frame 121 may be in sealing contact or sealing bonding connection with the joint surface 114.

Optionally, the number of the weaving meshes of the first waterproof and breathable mesh cloth 131 is 100-420 n/inch;

the mesh number of the second waterproof and breathable mesh cloth 132 is 100-230 n/inch. More specifically, when the waterproof and breathable member 130 for the basin stand is made of waterproof and breathable mesh cloth, a designer may select various specifications of the waterproof and breathable mesh cloth through design requirements. In a general sense, the mesh number is actually that of the mesh cloth, and the larger the mesh number is, the smaller the pore diameter is, and the filtered particles are very fine. When the mesh number of the mesh is large to a certain extent, the aperture is too small, and a plurality of mesh with too small apertures are woven at the moment, so that waterproof breathable mesh with good air permeability and waterproof effect can be formed.

In other embodiments, referring to fig. 4, the first waterproof and breathable mesh fabric 131 is selected from the B045HY standard, the mesh number of the weaving is 210n/inch, the aperture is 51 μm, the aperture ratio is 18%, and the wire diameter is 40 μm; or selecting waterproof breathable mesh cloth with the specification of B065HY, wherein the mesh number of the waterproof breathable mesh cloth is 420n/inch, the aperture is 30 mu m, the aperture ratio is 24%, and the wire diameter is 31 mu m.

The second waterproof breathable mesh cloth 132 is selected from the B045HY specification, the weaving mesh number is 210n/inch, the aperture is 51 mu m, the aperture ratio is 18%, and the wire diameter is 40 mu m; or selecting waterproof breathable mesh cloth with the specification of B090HY, wherein the mesh number of the mesh cloth is 230n/inch, the aperture is 41 mu m, the aperture ratio is 14%, and the wire diameter is 64 mu m. The waterproof and breathable mesh fabrics constituting the first waterproof and breathable mesh fabric 131 and the second waterproof and breathable mesh fabric 132 may be a single layer or may be a plurality of layers. The arrangement of the multi-layer waterproof breathable mesh cloth can enable the opening to bear larger water pressure. When the waterproof breathable mesh cloth is in the arrangement form of the multi-layer waterproof breathable mesh cloth, the mesh cloth can be of the same specification or of different specifications.

Alternatively, the housing 110 is formed with a front mouth 113, the front mouth 113 for communicating the front cavity 111 with the outside;

the earphone further comprises a front waterproof and breathable assembly 140, and the front waterproof and breathable assembly 140 is connected to the opening of the front mouth 113 and covers the opening. More specifically, in order to further enhance the waterproof performance of the earphone, the front-mouth waterproof and breathable assembly 140 covers the opening of the front mouth, preventing external liquid from entering the front cavity 111 of the housing 110 through the opening.

Referring to fig. 1-2, when the diaphragm assembly 120 emits sound, the sound is sequentially transmitted to the outside of the housing 110 or the human ear via the front cavity 111 and the front mouth 113. At this time, the radial dimension at the front mouth 113 is generally smaller than the radial dimension at the tub shelf 121, i.e., the closer along the front mouth direction, the smaller the radial dimension of the housing 110 thereof, which facilitates insertion of the front mouth 113 into the user's ear.

In order to prevent external water flow from entering the inside of the housing 110 through the front mouth 113, so that the inside of the housing 110 is wetted, causing damage to various functional components such as the diaphragm assembly 120, the opening of the front mouth 113 is covered. To facilitate the covering operation of the front nozzle waterproof and breathable assembly 140, the opening on the side facing the outside is generally covered.

Optionally, the front nozzle waterproof and breathable assembly 140 includes a front nozzle mesh 141 and a third waterproof and breathable mesh cloth 142;

the front mouth net 141 is connected to the outer wall of the front mouth 113 and covers the opening, and the third waterproof and breathable mesh cloth 142 is sandwiched between the front mouth net 141 and the opening of the front mouth 113. More specifically, in order to further prevent foreign substances such as liquid, dust, solid particles, etc. in the outside from entering the front cavity 111 of the housing 110 from the front mouth 113, the front mouth waterproof and breathable assembly 140 includes a front mouth mesh 141 and a third waterproof and breathable mesh cloth 142. The front nozzle screen 141 may be used to prevent dust, solid particles, etc. from entering the front cavity 111 through the openings. To ensure the strength of the front nozzle net 141 and to prevent rust after being stained with liquid, the front nozzle net 141 may be made of a material selected according to design requirements, for example, a stainless steel material. The mesh hole diameter on the front nozzle net 141 is moderate, so that the front nozzle net can prevent dust, solid particles and other impurities from entering the front cavity 111, and the ventilation property of the opening is not affected. The edge of the front nozzle net 141 may be bent in the direction of the outer wall of the opening and connected to the outer wall thereof, thereby forming a cover of the opening by the front nozzle net 141.

The third waterproof and breathable mesh 142 is mainly used for preventing external liquid from entering the front cavity 111 from the opening, and the third waterproof and breathable mesh 142 may be made of waterproof and breathable mesh. Referring to FIG. 4, the third waterproof and breathable mesh fabric 142 is selected from the B045HY standard, the mesh number of the weaving is 210n/inch, the aperture is 51 μm, the aperture ratio is 18%, and the wire diameter is 40 μm; or selecting waterproof breathable mesh cloth with the specification of B065HY, wherein the mesh number of the waterproof breathable mesh cloth is 420n/inch, the aperture is 30 mu m, the aperture ratio is 24%, and the wire diameter is 31 mu m. When the third waterproof and breathable mesh 142 covers the opening of the opening facing the outside, the edge of the third waterproof and breathable mesh 142 can be bent along the outer wall of the opening and is in sealing fit connection with the outer wall of the opening, so that the waterproof and breathable mesh covers the opening. The waterproof and breathable mesh fabric constituting the third waterproof and breathable mesh fabric 142 may be a single layer or may be a plurality of layers. The arrangement of the multi-layer waterproof breathable mesh cloth can enable the opening to bear larger water pressure. When the waterproof breathable mesh cloth is in the arrangement form of the multi-layer waterproof breathable mesh cloth, the mesh cloth can be of the same specification or of different specifications.

In other embodiments, to strengthen the connection between the third waterproof and breathable mesh 142 and the opening of the front mouth 113, the third waterproof and breathable mesh 142 is prevented from falling off, and the third waterproof and breathable mesh 142 is sandwiched between the front mouth mesh 141 and the opening. An annular groove 1131 is provided on the side of the front mouth 113 away from the diaphragm assembly 120, and the front mouth screen 141 includes a main body 1141 covering the opening of the front mouth 113 and a bending portion 1142 connected to the edge of the main body 1141, where the bending portion 1142 is snapped into the annular groove 1131. The bottom end of the bending portion 1142 may be in fit connection with the bottom wall of the annular groove 1131, and the outer side wall of the front nozzle net 141 is in fit connection with the side wall of the annular groove 1131, and a space is provided between the inner side wall of the front nozzle net 141 and the outer wall of the front nozzle 113. The annular groove 1131 is filled with adhesive glue, so that the front nozzle net 141 and the front nozzle 113 are tightly connected together.

In other embodiments, the front mouth 113 may not be provided with the annular groove 1131, and the bending portion 1142 of the front mouth web 141 and the outer wall of the front mouth 113 may be located between them. Of course, in this case, the third waterproof and breathable mesh cloth 142 is also clamped between the front nozzle mesh 141 and the opening of the front nozzle 113, and the edge of the third waterproof and breathable mesh cloth 142 is bonded to the inner side wall of the folded portion 1142. At this time, the front nozzle net 141 is fixedly connected with the front nozzle 113, and the third waterproof and breathable mesh cloth 142 is fixedly connected between the front nozzle net 141 and the opening, preventing the front nozzle net 141 and the third waterproof and breathable mesh cloth 142 from falling off.

The mesh number of the third waterproof breathable mesh cloth 142 is 210-420 n/inch, so that excessive liquid and impurities can be prevented from entering the cavity, and the voice is prevented from being damaged when being lifted. Referring to FIG. 4, the third waterproof and breathable mesh fabric 142 is selected from the B045 HY-sized fabric with a mesh size of 210n/inch, a pore size of 51 μm, an aperture ratio of 18% and a wire diameter of 40 μm; or selecting waterproof breathable mesh cloth with the specification of B065HY, wherein the mesh number of the waterproof breathable mesh cloth is 420n/inch, the aperture is 30 mu m, the aperture ratio is 24%, and the wire diameter is 31 mu m.

In an embodiment, the headset further comprises: the air hole waterproof and breathable piece 150, the shell 110 is further provided with an air hole 115, and the air hole 115 is communicated with the rear cavity 112 and the outside; the air vent waterproof and breathable member 150 is connected to the inner wall of the housing 110 located in the rear cavity 112 and covers the air vent 115. More specifically, since the air vent hole 115 communicates the air in the rear cavity 112 with the air outside the housing 110, the air vent hole 115 can avoid pressure accumulation in the rear cavity 112, and sound quality and acoustic effect of the earphone are ensured.

In order to prevent foreign substances or liquid from entering the rear cavity 112 through the air vent hole 115, the air vent hole 115 is covered by the air vent waterproof and breathable member 150. In order to prevent the air vent waterproof and breathable member 150 from falling off, the air vent waterproof and breathable member 150 is attached to the inner wall of the housing 110, that is, the air vent waterproof and breathable member 150 covers the opening of the air vent 115 facing the inside of the housing 110. In other embodiments, a corresponding groove is formed in the casing 110 at the air release hole 115, the depth of the groove is the same as the thickness of the air hole waterproof and breathable member 150, the groove is matched with the air hole waterproof and breathable member 150, the air hole waterproof and breathable member 150 can be embedded in the groove, and at least part of the outer wall of the air hole waterproof and breathable member 150 is attached to the inner wall of the groove.

It should be noted that the air hole waterproof and breathable member 150 may be made of waterproof and breathable mesh material or waterproof and breathable film. The waterproof breathable film is a polymer material having minute holes. The micropores are permeable to air, but water molecules are impermeable to the micropores. Because of its small micropores, it has poor air permeability and great resistance to air flow.

The waterproof breathable mesh cloth is a mesh woven by nylon or polyester silk yarns. Specifically, a water-repellent coating or a material that is not compatible with water, such as a nanomaterial or the like, is sprayed on the filaments, and then the filaments are woven into a net. The waterproof breathable mesh cloth has the function of isolating dust, solid particles, water and other liquid; and meanwhile, the air-permeable fabric also has good air permeability. The mesh of the net is far larger than the micropores on the waterproof and breathable film, so that the waterproof and breathable net cloth has small blocking effect on air flow, and has better sound transmission effect compared with the waterproof and breathable film in terms of acoustics. Referring to fig. 4, when the air hole waterproof and breathable member 150 is made of waterproof and breathable mesh cloth, the air hole waterproof and breathable member 150 may be selected from the specification B045HY, the mesh size of which is 210n/inch, the aperture is 51 μm, the aperture ratio is 18%, and the wire diameter is 40 μm.

It should be noted that, because the breathable waterproof members referred to in the present application are all made of waterproof breathable mesh fabrics, when setting these waterproof breathable mesh fabrics, a designer may select a single-layer arrangement or a multi-layer arrangement according to design requirements. Because the waterproof grade of the waterproof ventilative screen cloth of individual layer is relatively poor, when the earphone needs to reach higher waterproof grade, when needs bear bigger water pressure promptly, can share bigger water pressure through setting up waterproof ventilative screen cloth of multilayer to make whole product can bear bigger pressure.

More specifically, the principle of water pressure born by the waterproof breathable mesh cloth is as follows:

f when a layer of waterproof breathable mesh cloth is used _1m ＝ΔF _{Screen cloth} +ΔV _{Air-conditioner} *K。F _1m The water pressure which can be borne by the waterproof breathable mesh cloth at the water depth of 1 m; ΔF (delta F) _{Screen cloth} Is a layer of waterproof breathable mesh cloth capable of bearing pressure; deltaV _{Air-conditioner} A volume change that is a compressed volume of air within the product; k is the air elasticity coefficient. So in general, the water pressure born by a layer of waterproof breathable mesh cloth at the water depth of 1m is equal to the sum of the pressure born by the layer of waterproof breathable mesh cloth and the volume change of compressed air volume in the product, which is the air elasticity coefficient.

When using the multi-layer waterproof breathable mesh cloth, F _1m ＝ΔF _{Screen cloth 1} +ΔV _{Air 1} *K+ΔF _{Screen cloth 2} +ΔV _{Air 2} *K；+ΔF _{Screen cloth 3} +ΔV _{Air 3} * K+ &. Namely, at this time, the water pressure born by the multi-layer waterproof breathable mesh cloth at the water depth of 1m is equal to the pressure born by each layer of waterproof breathable mesh cloth, and the volume change of compressed air volume in each cavity in the product is equal to the air elasticity coefficient. Due to the existence of the multi-layer waterproof net and the plurality of air chambers, the water pressure born by the single waterproof breathable net cloth can be relatively small through the multi-layerUnder the condition of the combination of the waterproof breathable mesh cloth, the water pressure is higher.

The same or similar reference numerals in the drawings of the present embodiment correspond to the same or similar components; in the description of the present application, it should be understood that, if there is an azimuth or positional relationship indicated by terms such as "upper", "lower", "left", "right", etc., based on the azimuth or positional relationship shown in the drawings, this is for convenience of description and simplification of the description, but does not indicate or imply that the apparatus or element to be referred must have a specific azimuth, be constructed and operated in a specific azimuth, and thus terms describing the positional relationship in the drawings are merely used for illustration and are not to be construed as limitations of the present patent, and that the specific meaning of the terms described above may be understood by those of ordinary skill in the art according to the specific circumstances.

The foregoing description of the preferred embodiment of the present utility model is not intended to limit the utility model to the particular form disclosed, but on the contrary, the intention is to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model.

Claims (10)

1. An earphone, comprising:

a housing;

the vibrating diaphragm assembly is arranged in the shell and divides the inner cavity of the shell into a front cavity and a rear cavity, and the front cavity is communicated with the outside; the vibrating diaphragm assembly comprises a basin frame, the edge part of the basin frame is connected with the inner wall of the shell, an airflow through hole is formed in the basin frame, and the front cavity and the rear cavity are communicated through the airflow through hole; and

the basin stand waterproof ventilation piece is connected to the basin stand, and the basin stand waterproof ventilation piece covers the airflow through hole.

2. The earphone of claim 1, wherein the frame waterproof and breathable member comprises a first waterproof and breathable mesh and a second waterproof and breathable mesh;

the first waterproof breathable mesh cloth and the second waterproof breathable mesh cloth are respectively connected to two opposite surfaces of the basin frame so as to cover two side orifices of the airflow through hole respectively.

3. The earphone of claim 2, wherein an inner wall of the housing is formed with a landing surface facing the rear cavity;

the edge of the basin frame is abutted to the lap joint surface, and one side edge of the first waterproof breathable mesh cloth is clamped between the edge of the basin frame and the lap joint surface.

4. The earphone of claim 2, wherein the first waterproof breathable mesh cloth has a mesh number of 210-420 n/inch;

the weaving mesh number of the second waterproof breathable mesh cloth is 210-500 n/inch.

5. The earphone according to claim 1, wherein the housing is formed with a front mouth for communicating the front cavity with the outside;

the earphone further comprises a front nozzle waterproof and breathable assembly, wherein the front nozzle waterproof and breathable assembly is connected with the front nozzle and covers an opening of the front nozzle.

6. The earphone of claim 5, wherein the front nozzle waterproof and breathable assembly comprises a front nozzle mesh and a third waterproof and breathable mesh;

the front mouth net is connected with the front mouth and covers the opening, and the third waterproof breathable mesh cloth is clamped between the front mouth net and the front mouth and covers the opening of the front mouth.

7. The earphone of claim 6, wherein the front mouth is formed with an annular groove surrounding an opening thereof, the front mouth net including a main body portion covering the opening of the front mouth and a bent portion connected to an edge of the main body portion, the bent portion being caught in the annular groove.

8. The earphone of claim 7, wherein the annular groove is filled with an adhesive gel.

9. The earphone of claim 6, wherein the third waterproof and breathable mesh cloth has a mesh number of 210-420 n/inch.

10. The earphone according to any one of claims 1 to 9, further comprising:

the shell is also provided with an air leakage hole which is communicated with the rear cavity and the outside; the air hole waterproof ventilation piece is connected to the inner wall of the rear cavity of the shell and covers the air leakage hole.