Loudspeaker key structure and earphone

Abstract

The utility model discloses a loudspeaker key structure and an earphone. The loudspeaker key structure comprises a shell, an elastic pad, a key cap, a circuit module and a deformable covering film. The shell is provided with a through hole. The elastic cushion is arranged in the through hole and connected with the inner side wall of the shell, and the shell and the elastic cushion define a containing cavity. The key cap is connected with the elastic pad and is located outside the accommodating cavity. The circuit module is contained in the containing cavity and comprises a circuit board and a key switch arranged on the circuit board, and the key switch corresponds to the key cap. The deformable covering film is arranged on the circuit board and located between the key switch and the elastic cushion, the key switch abuts against the covering film to jack up the covering film, a noise reduction cavity is formed between the covering film and the circuit board, at least part of the key switch is contained in the noise reduction cavity, and under the condition that the key cap is pressed due to stress, the noise reduction cavity is closed. The key cap transmits pressing force to the key switch through the elastic pad and the covering film.

Description

Technical Field

[0001] This application relates to the field of headphone speakers, and more specifically, to a speaker button structure and headphones. Background Technology

[0002] In traditional headphone speaker button structures, the button cap contacts an internal switch, transmitting the user's press to the switch, which then controls the speaker unit to produce sound. The switch generates sound when triggered. Especially when the user needs to press the button cap repeatedly, because the button is close to the user's ear, most of the sound from the switch reaches the ear. When the switch sound is loud, it can mix with the sound from the speaker unit, causing interference. Bone conduction headphones, which produce sound through vibrations and transmit it through the ear bone to the ear canal, face this problem particularly acutely, severely impacting sound reception, especially with frequent button presses. Utility Model Content

[0003] This application provides a speaker button structure and headphones.

[0004] The speaker button structure provided in this application includes a housing, an elastic pad, a button cap, a circuit module, a deformable diaphragm, and a sound-emitting unit. The housing has a through hole. The elastic pad is disposed within the through hole and connected to the inner wall of the housing, forming a receiving cavity with the housing. The button cap is connected to the elastic pad and located outside the receiving cavity. The circuit module is housed within the receiving cavity and includes a circuit board and a button switch disposed on the circuit board. The button switch corresponds to the button cap. The diaphragm is disposed on the circuit board and located between the button switch and the elastic pad. The button switch abuts against the diaphragm to lift it, forming a noise-reducing cavity between the diaphragm and the circuit board. The button switch is at least partially housed within the noise-reducing cavity. When the button cap is pressed, the button cap transmits the pressing force through the elastic pad and the diaphragm to the button switch.

[0005] In some embodiments, the noise reduction cavity is a sealed cavity, and the push-button switch is completely housed within the noise reduction cavity.

[0006] In some embodiments, the projected area of ​​the coating on the circuit board is greater than or equal to the projected area of ​​the push-button switch on the circuit board, and less than or equal to the area of ​​the circuit board.

[0007] In some embodiments, the coating is a flat, flexible film before being applied to the circuit board.

[0008] In some embodiments, before being applied to the circuit board, the annular periphery of the coating is a rigid, non-deformable structure, and the middle portion of the coating is a flat, flexible film.

[0009] In some embodiments, the coating is fixed to the circuit board by adhesive backing.

[0010] In some embodiments, the circuit board is a flexible circuit board, a rigid circuit board, or a rigid-flex circuit board. When the circuit board is a flexible circuit board or a rigid-flex circuit board, the speaker button structure further includes a support member. The support member is disposed on the side of the circuit board away from the button cap and is connected to the inner wall of the housing. The support member is configured to connect to and support the circuit board.

[0011] In some embodiments, the elastic pad and the housing are a single, two-color injection molded structure.

[0012] In some embodiments, the elastic pad and the housing are adhesively bonded.

[0013] In some embodiments, the hardness of the elastic pad is less than the hardness of the housing.

[0014] In some embodiments, the elastic pad includes a first side and a second side opposite to each other in a first direction. The button cap is connected to the first side of the elastic pad, and the second side of the elastic pad is provided with a contact portion and a recess. The contact portion corresponds to the button switch in the first direction, and the contact portion and the button switch respectively contact the two sides of the coating in the first direction. The recess is provided on the outer periphery of the contact portion and is configured to provide deformation space for the deformation of the elastic pad.

[0015] In some embodiments, the button cap includes a body portion and a first connecting portion, and a second connecting portion is provided on the first side of the elastic pad. The first connecting portion is connected to the second connecting portion so that the button cap is connected to the first side of the elastic pad.

[0016] In some embodiments, when the button cap is not pressed, the button cap is housed within the through hole, and the outer surface of the button cap forms a continuous curved surface with the outer surface of the housing; when the button cap is pressed, the button cap is housed within the through hole, and the outer surface of the button cap is lower than the outer surface of the housing.

[0017] In some embodiments, when the button cap is not pressed, a portion of the button cap is received within the through hole, and another portion protrudes relative to the outer surface of the housing; when the button cap is pressed, the button cap is received within the through hole, and the outer surface of the button cap does not extend beyond the outer surface of the housing.

[0018] Secondly, this application provides an earphone. The earphone includes the speaker button structure described in any of the above embodiments.

[0019] In the speaker button structure and headphones of this application, a diaphragm is disposed on a circuit board and is configured to be lifted by a push-button switch on the circuit board, thus forming a noise-reducing cavity between the diaphragm and the circuit board. The push-button switch is at least partially housed within the noise-reducing cavity. Therefore, when the button cap is pressed, the button cap transmits the pressing force to the push-button switch through the elastic pad and the diaphragm, and at least a portion of the sound generated by the push-button switch is blocked by the diaphragm. That is, the diaphragm reduces the proportion of sound generated by the push-button switch transmitted to the user's ears, preventing the sound generated by the push-button switch from being confused with the sound emitted by the speaker unit, thereby reducing interference to the user and improving the user's sound reception.

[0020] Additional aspects and advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of this application. Attached Figure Description

[0021] The above and / or additional aspects and advantages of this application will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, wherein:

[0022] Figure 1 This is a schematic diagram of the speaker button structure according to certain embodiments of this application;

[0023] Figure 2 This is a three-dimensional exploded view of the speaker button structure according to certain embodiments of this application;

[0024] Figure 3 This is a cross-sectional view of the speaker button structure of some embodiments of this application, taken by line III-III;

[0025] Figure 4 yes Figure 3 An enlarged schematic diagram of point IV in the speaker button structure shown;

[0026] Figure 5 This is a schematic diagram of the structure of an earphone according to certain embodiments of this application.

[0027] The reference numerals in the detailed embodiments are as follows:

[0028] Headphones 1000; Speaker 100; Battery structure 300; Ear hooks 500;

[0029] Speaker button structure 10;

[0030] Loading component 11; receiving cavity 111; housing 113; through hole 1131; first housing 1133; second housing 1135; elastic pad 115; first side of elastic pad 11501; second side of elastic pad 11502; contact portion 1151; recess 1153; second connecting portion 1155;

[0031] Keycap 13; Body 131; First connecting part 133;

[0032] Circuit module 15; Circuit board 151; Push button switch 153;

[0033] 17-layer membrane; 171-layer noise reduction cavity;

[0034] 19 sound-producing units;

[0035] First direction L; positive direction of the first direction L1; negative direction of the first direction L2. Detailed Implementation

[0036] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0037] In the description of this application, it should be understood that the terms "center", "length", "upper", "lower", "front", "rear", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this application.

[0038] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0039] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0040] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0041] In traditional headphone speaker button structures, the button cap contacts an internal button switch during use, transmitting the user's press operation to the switch to control the sound-producing unit. The button switch produces sound when triggered. Especially when the user needs to press the button cap repeatedly, because the operation point is close to the user's ear, most of the sound generated by the button switch reaches the user's ear. When the button switch sound is loud, this sound will be confused with the sound emitted by the sound-producing unit, thus interfering with the user. Bone conduction headphones generate sound through vibration and transmit the sound to the user's ear canal through the ear bone; therefore, the above problem is particularly severe, especially when the button cap is frequently pressed, which seriously affects the user's sound reception. To solve this problem, this application provides a speaker button structure 10 ( Figure 1 (as shown) and headphones 1000 ( Figure 5 (As shown).

[0042] Please refer to Figure 1 and Figure 2 The speaker button structure 10 provided in this application includes a housing 113, an elastic pad 115, a button cap 13, a circuit module 15, and a deformable diaphragm 17. The housing 113 has a through hole 1131. The elastic pad 115 is disposed within the through hole 1131 and connected to the inner wall of the housing 113, forming a receiving cavity 111 with the housing 113 and the elastic pad 115. The button cap 13 is connected to the elastic pad 115 and located outside the receiving cavity 111. Please refer to... Figure 3 and Figure 4 The circuit module 15 is housed within the receiving cavity 111 and includes a circuit board 151 and a push-button switch 153 disposed on the circuit board 151, the push-button switch 153 corresponding to the button cap 13. A film 17 is disposed on the circuit board 151 and located between the push-button switch 153 and the elastic pad 115. The push-button switch 153 abuts against the film 17 to lift the film 17, forming a noise reduction cavity 171 between the film 17 and the circuit board 151. The push-button switch 153 is at least partially housed within the noise reduction cavity 171. When the button cap 13 is pressed, the button cap 13 transmits the pressing force to the push-button switch 153 through the elastic pad 115 and the film 17.

[0043] Specifically, the speaker button structure 10 is a component for users to press to transmit commands to the speaker, including a housing 113, an elastic pad 115, a button cap 13, a circuit module 15, and a deformable membrane 17. The housing 113 is the component in the speaker button structure 10 that houses and protects other components. The material of the housing 113 can be, but is not limited to, metal, plastic, or ceramic. When the housing 113 is made of metal, it has high structural strength, is not easily damaged, and has a long service life. When the housing 113 is made of plastic, it is lightweight and has a lower cost. When the housing 113 is made of ceramic, it has high hardness, is not easily deformed, has good corrosion resistance, and a long service life.

[0044] More specifically, in some embodiments, the housing 113 includes a first housing 1133 and a second housing 1135 (e.g., Figure 2(As shown). In one example, the first shell 1133 and the second shell 1135 are an integral structure, in which case the sealing performance of shell 113 is better. In another example, the first shell 1133 and the second shell 1135 are separate structures. When the first shell 1133 and the second shell 1135 are separate structures, they can be detachably connected or non-detachably connected. Detachable connections include, but are not limited to, one or more combinations of screw connections and snap-fit ​​connections. Non-detachable connections include, but are not limited to, one or more combinations of gluing, welding, and sintering methods. The material of the first shell 1133 can be, but is not limited to, metal, plastic, or ceramic. When the material of the first shell 1133 is metal, the first shell 1133 has high structural strength, is not easily damaged, and has a long service life. When the material of the first shell 1133 is plastic, the first shell 1133 is lighter and has a lower cost. When the first shell 1133 is made of ceramic, it has high hardness, is not easily deformed, has good corrosion resistance, and a long service life. The second shell 1135 can be made of, but is not limited to, metal, plastic, or ceramic. When the second shell 1135 is made of metal, it has high structural strength, is not easily damaged, and has a long service life. When the second shell 1135 is made of plastic, it is lightweight and has a lower cost. When the second shell 1135 is made of ceramic, it has high hardness, is not easily deformed, has good corrosion resistance, and a long service life. The first shell 1133 and the second shell 1135 can be made of the same or different materials, allowing for flexible selection of the shell 113 based on the application scenario. In other embodiments, the shell 113 can also have other structures, such as including at least one third shell (not shown). In this case, the shell 113 can be configured with a more complex structure according to the application scenario of the earphone 1000, making the earphone 1000 both practical and aesthetically pleasing.

[0045] The housing 113 is provided with a through hole 1131 for mounting the elastic pad 115 and accommodating at least a portion of the button cap 13. In embodiments where the housing 113 includes a first housing 1133 and a second housing 1135, the through hole 1131 may be provided on either the first housing 1133 or the second housing 1135. This application takes the through hole 1131 being provided on the first housing 1133 as an example, such as... Figure 2 As shown.

[0046] The elastic pad 115 is a component that deforms when the speaker button structure 10 is pressed or released. The elastic pad 115 deforms to allow the button cap 13 to contact the circuit module 15 through the housing 113 and the cover 17. Furthermore, since the elastic pad 115 is disposed within the through hole 1131 and connected to the inner wall of the housing 113, it separates the interior of the speaker button structure 10 from the exterior. Therefore, the elastic pad 115 prevents external liquids from entering the housing 113 through the through hole 1131, thus avoiding interference with the normal operation of the components inside the housing 113.

[0047] The housing 113 and the elastic pad 115 are collectively referred to as the loading component 11, and the spatial structure enclosed by the housing 113 and the elastic pad 115 is referred to as the accommodating cavity 111. The accommodating cavity 111 is a spatial structure that provides installation space for the button cap 13, the circuit module 15, and the cover 17. The button cap 13 is the device directly operated by the user when pressing the speaker button structure 10. The button cap 13 is connected to the elastic pad 115, and the connection between the button cap 13 and the elastic pad 115 is a movable connection, thereby ensuring that the button cap 13 can move relative to the housing 113 along the first direction L (described below) when pressed, that is, the relative positional relationship between the button cap 13 and the housing 113 can change in the first direction L when pressed. The button cap 13 is located outside the accommodating cavity 111 so that the user can press it more conveniently when operating the button cap 13. At the same time, the movable range of the button cap 13 relative to the housing 113 is larger, the pressing operation of the speaker button structure 10 is longer, and it is easier for the user to perceive.

[0048] The circuit module 15 is a unit that responds to a pressing operation after being pressed by the button cap 13. The circuit module 15 is fixedly connected to the housing 113 and housed within the receiving cavity 111. The connection between the circuit module 15 and the housing 113 can be detachable or non-detachable. Detachable connections include, but are not limited to, one or more combinations of screw connections and snap-fit ​​connections. Non-detachable connections include, but are not limited to, one or more combinations of gluing, welding, and sintering. The circuit module 15 includes a circuit board 151 and a button switch 153 disposed on the circuit board 151. The circuit board 151 is part of the headphone 1000 (…). Figure 5The core component (shown) used to connect and support electronic components typically consists of an insulating substrate and conductive lines. The push-button switch 153 is a device in circuit module 15 used to trigger functions such as controlling the display screen to light up or turn pages in response to the force applied when the button cap 13 is pressed. In this embodiment, the push-button switch 153 is a trigger switch. The connection between the circuit board 151 and the push-button switch 153 can be either detachable or non-detachable. Detachable connections include, but are not limited to, one or more combinations of screw connections and snap-fit ​​connections. Non-detachable connections include, but are not limited to, one or more combinations of gluing, welding, and sintering methods. The shape, size, and position of the push-button switch 153 correspond to the shape, size, and position of the button cap 13 to ensure that the push-button switch 153 can respond to the pressing operation of the button cap 13.

[0049] The coating 17 is a functional film used to reduce noise interference. In this application, the coating 17 is a device used to reduce the decibel level of sound generated when pressure is transmitted to the push-button switch 153. The material of the coating 17 can be, but is not limited to, rubber, silicone, thermoplastic elastomer, or polyvinyl chloride. When the coating 17 is made of rubber, it has advantages such as good wear resistance and electrical insulation; when the coating 17 is made of silicone, it has advantages such as high temperature resistance and strong stability; when the coating 17 is made of thermoplastic elastomer, it has advantages such as lightweight and adjustable overall performance; when the coating 17 is made of polyvinyl chloride, it has advantages such as low cost and easy processing. The coating 17 is configured to be deformable. The deformation of the coating 17 can be elastic deformation or plastic deformation. When the deformation of the coating 17 is elastic deformation, the installation steps between the coating 17 and the push-button switch 153 are simple, and the coating 17 can be reused. The structure of the noise reduction cavity 171 becomes more stable when the coating 17 undergoes plastic deformation. The coating 17 is disposed on the circuit board 151 and located between the push-button switch 153 and the elastic pad 115. The connection between the coating 17 and the circuit board 151 can be detachable or non-detachable. Detachable connections include, but are not limited to, one or more combinations of screw connections and snap-fit ​​connections. Non-detachable connections include, but are not limited to, one or more combinations of gluing, welding, and sintering.

[0050] The push-button switch 153 and the elastic pad 115 are distributed on both sides of the membrane 17 along the first direction L. Both the push-button switch 153 and the membrane 17 are connected to the same side of the circuit board 151. The push-button switch 153 contacts the membrane 17, causing the membrane 17 to deform; that is, the push-button switch 153 lifts the membrane 17, changing the spatial volume between the membrane 17 and the circuit board 151. The spatial structure formed between the membrane 17 and the circuit board 151 is a noise reduction cavity 171. The noise reduction cavity 171 is a spatial structure that houses the push-button switch 153 and absorbs at least a portion of the sound emitted by the push-button switch 153. At least a portion of the push-button switch 153 is housed within the noise reduction cavity 171, so that at least a portion of the sound emitted by the push-button switch 153 when triggered is confined within the noise reduction cavity 171 and cannot be transmitted outside the noise reduction cavity 171 or even outside the speaker button structure 10. When the button cap 13 is pressed, the button cap 13 transmits the pressing force through the elastic pad 115 and the diaphragm 17 to the button switch 153, triggering the button switch 153 and causing the sound unit 19 to emit sound. The speaker button structure 10 has a diaphragm 17 between the button switch 153 and the elastic pad 115. The diaphragm 17 and the circuit board 151 form a noise reduction cavity 171, which accommodates at least part of the button switch 153 to reduce the decibel level of the sound generated when the button switch 153 is triggered.

[0051] The speaker button structure 10 also includes a sound-generating unit 19. The sound-generating unit 19 is the core component of the speaker button structure 10 used to emit sound waves, converting electrical signals into sound. The structure and working principle of the sound-generating unit 19 vary depending on the type of earphone 100. In some embodiments, the sound-generating unit 19 is a dynamic driver, which has the advantages of simple structure, low cost, and good low-frequency performance. In other embodiments, the sound-generating unit 19 is a balanced armature driver, which has the advantages of small size, suitability for in-ear headphones, and strong high-frequency resolution. In still other embodiments, the sound-generating unit 19 is an electrostatic driver, which has the advantages of clear high frequencies and exquisite detail. The sound-generating unit 19 is housed within a receiving cavity 111. In some embodiments, the sound-generating unit 19 is electrically connected to a circuit module 15, which is configured to directly control the operating state of the sound-generating unit 19. In other embodiments, the sound-emitting unit 19 is directly connected to the main board (not shown) of the headphone 1000, and the main board directly controls the operating state of the sound-emitting unit 19. When the push-button switch 153 is applied, the sound-emitting unit 19 responds to the command issued by the push-button switch 153 and emits sound.

[0052] In the speaker button structure 10 of this application, a diaphragm 17 is disposed on a circuit board 151 and is configured to be lifted by a push-button switch 153 on the circuit board 151, thus forming a noise reduction cavity 171 between the diaphragm 17 and the circuit board 151. The push-button switch 153 is at least partially housed within the noise reduction cavity 171. Therefore, when the button cap 13 is pressed, the button cap 13 transmits the pressing force to the push-button switch 153 through the elastic pad 115 and the diaphragm 17, and at least a portion of the sound generated by the push-button switch 153 is blocked by the diaphragm 17. That is, the diaphragm 17 reduces the proportion of sound generated by the push-button switch 153 transmitted to the user's ears, preventing the sound generated by the push-button switch 153 from being confused with the sound emitted by the speaker unit, thereby reducing interference to the user and improving the user's sound reception.

[0053] Furthermore, in some embodiments, the noise-reducing cavity 171 may be a semi-open cavity with at least one side closed. The sound generated by the button switch 153, transmitted through pressure, is blocked by the closed sidewall of the noise-reducing cavity 171, thus reducing noise. In this case, at least a portion of the button switch 153 is housed within the noise-reducing cavity 171; that is, in one example, the button switch 153 is completely housed within the noise-reducing cavity 171, thereby maximizing the noise blocking effect of the membrane 17. In another example, a portion of the button switch 153 is housed within the noise-reducing cavity 171, while another portion extends outside the noise-reducing cavity 171. However, the force-receiving part receiving the pressure transmitted from the button cap 13 is located within the noise-reducing cavity 171. Thus, even if the button switch 153 is large, noise reduction can still be achieved using the membrane 17.

[0054] Please refer to this as well. Figure 3 and Figure 4 In some other embodiments, the noise reduction cavity 171 is a sealed cavity, and the push-button switch 153 is completely housed within the noise reduction cavity 171.

[0055] The noise reduction cavity 171 is a sealed cavity, meaning it is a closed cavity that is sealed on all sides. Specifically, the periphery of the membrane 17 is connected to the circuit board 151 without any gaps. In this case, the push-button switch 153 is completely contained within the noise reduction cavity 171, with no part protruding from it. More specifically, the push-button switch 153 includes a bottom side that contacts the circuit board 151, a top side that contacts the membrane 17, and a peripheral side connecting the bottom and top sides. In one example, the membrane 17 only contacts the top side of the push-button switch 153, and the peripheral side of the push-button switch 153 does not contact the membrane 17, such as... Figure 4As shown; in another example, the film 17 contacts the top side and at least one peripheral side of the push-button switch 153, in which case the film 17 provides better coverage of the push-button switch 153. Therefore, the noise reduction cavity 171, being a closed cavity, can more effectively block the transmission of sound waves within the noise reduction cavity 171 compared to a semi-open cavity, resulting in better noise reduction for the sound generated by the push-button switch 153.

[0056] Please refer to this as well. Figure 3 and Figure 4 In other embodiments, the projected area of ​​the film 17 on the circuit board 151 is greater than or equal to the projected area of ​​the push-button switch 153 on the circuit board 151, and less than or equal to the area of ​​the circuit board 151.

[0057] Specifically, since the push-button switch 153 is at least partially housed within the noise reduction cavity 171 formed by the film 17 and the circuit board 151, the dimensions of the push-button switch 153, the film 17, and the circuit board 151 need to be coordinated. Specifically, using the circuit board 151 as a reference plane, the area of ​​the projection surface of the film 17 onto the circuit board 151 is defined as the first area, and the area of ​​the projection surface of the push-button switch 153 onto the circuit board 151 is defined as the second area. At this point, the first area is greater than or equal to the second area, and the first area is less than or equal to the area of ​​the circuit board 151; that is, the area of ​​the circuit board 151 is greater than or equal to the first area and greater than or equal to the second area. Therefore, at least a portion of the push-button switch 153 is enclosed by the film 17, and neither the push-button switch 153 nor the film 17 extends beyond the area of ​​the circuit board 151.

[0058] Please refer to Figure 2 In some embodiments, the film 17 is a flat, flexible film before being applied to the circuit board 151.

[0059] Specifically, in the above embodiment, the coating 17 has different forms before and after being applied to the circuit board 151. Before being applied to the circuit board 151, the coating 17 is a flat, flexible film, and the coating 17 is elastic. Therefore, the coating 17 has the advantages of simple shape, easy processing, storage and transportation before assembly, and the production cost of the coating 17 is low. The shape of the projection of the coating 17 in the plane perpendicular to the first direction L can be, but is not limited to, a circle, ellipse, square, near-circular, near-elliptical or other polygons. The shape and size of the coating 17 need to match the shape and size of the circuit board 151 and the shape and size of the push-button switch 153. In addition, within the elastic limit, the coating 17 can be lifted to different heights by push-button switches 153 of different sizes and shapes to form noise reduction cavities 171 of different sizes (capacities). Therefore, the coating 17 of the same size can be adapted to push-button switches 153 of different sizes, and the coating 17 has the advantage of strong applicability, and the production process of the speaker button structure 10 is flexible.

[0060] Please refer to Figure 2 In some embodiments, before being applied to the circuit board 151, the periphery of the coating 17 is a rigid, non-deformable structure, and the middle portion of the coating 17 is a flat, flexible film.

[0061] Specifically, in the above embodiment, the coating 17 can be divided into a peripheral edge and a central part. The peripheral edge is a rigid structure that cannot be deformed. In this case, the peripheral edge has greater structural strength, and the coating 17 can be better fixed to the circuit board 151 through the peripheral edge. The fixing process between the coating 17 and the circuit board 151 is easier and the fixing effect is more secure, resulting in stronger structural stability of the speaker button structure 10.

[0062] The outer edge of the middle portion of the membrane 17 is connected to the periphery of the membrane 17. The middle portion of the membrane 17 is a flat, flexible membrane. Therefore, within its elastic limit, the middle portion can be lifted to different heights by push-button switches 153 of different sizes and shapes to form noise reduction cavities 171 of different sizes (capacities). At this time, the membrane 17 can be adapted to push-button switches 153 of different sizes, giving it a strong advantage in applicability and making the manufacturing process of the speaker button structure 10 flexible.

[0063] Please refer to Figure 3 and Figure 4 In some embodiments, the film 17 is fixed to the circuit board 151 by adhesive backing.

[0064] In the above embodiments, the film 17 has an adhesive backing on the side opposite to the circuit board 151, which is used to connect the film 17 to the circuit board 151. On the side of the film 17 opposite to the circuit board 151, the film 17 includes an adhesive-backed area and a non-adhesive-backed area. The adhesive-backed area is located at the edge of the film 17 and is used to apply the adhesive. The non-adhesive-backed area is the region of the film 17 extending from the center towards the adhesive-backed area. The non-adhesive-backed area does not have adhesive and is used to form the noise reduction cavity 171. In some embodiments, the adhesive backing can be continuously provided at the edge of the film 17, that is, the adhesive backing area is a continuous ring, in which case the noise reduction cavity 171 is the aforementioned sealed cavity. In other embodiments, the adhesive backing can be discontinuously provided at the edge of the film 17, in which case the noise reduction cavity 171 can be the aforementioned semi-open cavity. The film 17 is fixed to the circuit board 151 by the adhesive backing, which simplifies the installation process of the film 17. In addition, the adhesive backing fixation method can maintain the integrity of the film 17. The film 17 does not need to be equipped with a mating connection structure such as mounting holes, which simplifies the structure of the speaker button structure 10.

[0065] Please refer to Figure 2 In some embodiments, the circuit board 151 is a flexible circuit board, a rigid circuit board, or a circuit board that combines flexibility and rigidity.

[0066] Circuit board 151 is for headphone 1000 ( Figure 5 The core component (shown) used to connect and support electronic components typically consists of an insulating substrate and conductive lines. Specifically, in the above embodiments, the circuit board 151 can be classified into different types depending on the substrate.

[0067] When the circuit board 151 is a flexible circuit board, the substrate of the circuit board 151 can be deformed. The circuit board 151 can be bent within the accommodating cavity 111 to adapt to application scenarios such as: complex spatial layout inside the housing 113, small overall size of the speaker button structure 10, or limited space in the accommodating cavity 111. In this case, the installation position and installation form of the circuit board 151 can be more flexible. At the same time, the speaker button structure 10 using a flexible circuit board also has the advantage of being lightweight.

[0068] When circuit board 151 is a rigid circuit board, its structural strength is high. This results in a more stable connection between the electronic components and the substrate, leading to better stability of the speaker button structure 10 and thus a longer lifespan. Furthermore, the rigid circuit board also offers the advantage of lower cost, reducing the production cost of the speaker button structure 10.

[0069] When circuit board 151 is a rigid-flex PCB, it allows for better integrated design. This allows for more flexible placement of electronic components within the circuit board 151, and also allows for more flexible layout within the housing 113. Therefore, circuit board 151 offers greater design and installation flexibility, combining the advantages of both flexible and rigid circuit boards.

[0070] Please refer to Figure 2 In some embodiments, when the circuit board 151 is a flexible circuit board or a rigid-flex circuit board, the speaker button structure 10 further includes a support member (not shown). The support member is disposed on the side of the circuit board 151 away from the button cap 13 and is connected to the inner wall of the housing 113. The support member is configured to connect to and support the circuit board 151.

[0071] In the above embodiments, since the circuit board 151 is a flexible circuit board or a rigid-flex circuit board, meaning that the circuit board 151 has a flexible portion, the connection between the circuit board 151 and the housing 113 requires assistance from other structures. Specifically, the speaker button structure 10 of this application is provided with a support member to assist in the connection between the circuit board 151 and the housing 113. The support member is a structure used to support the circuit board 151 to achieve the connection between the circuit board 151 and the housing 113. The size and structure of the support member need to be adapted to the size and structure of the circuit board 151. The support member is connected to the inner wall of the housing 113, and the support member is located on the side of the circuit board 151 away from the button cap 13, that is, the support member and the button cap 13 are located on different sides of the circuit board 151.

[0072] The support component can be made of, but is not limited to, metal or plastic. When the support component is made of metal, it has high structural strength, is less prone to damage, and has a long service life. When the support component is made of plastic, it is lighter and less expensive. The support component and circuit board 151 can be integrally formed or separately formed. When the support component and circuit board 151 are separately formed, the connection between them can be detachable or non-detachable. Detachable connections include, but are not limited to, one or more combinations of screw connections and snap-fit ​​connections. Non-detachable connections include, but are not limited to, one or more combinations of gluing, welding, and sintering. The support component supports the circuit board 151, making the connection between the circuit board 151 and the housing 113 more stable, further enhancing the structural stability of the speaker button structure 10 and increasing its service life. Simultaneously, due to the support of the support component on the circuit board 151, the deformation process of the circuit board 151 is more stable when the user presses the button cap 13, resulting in a better pressing feel for the speaker button structure 10.

[0073] Please refer to Figure 4 In some embodiments, the elastic pad 115 and the housing 113 are a two-color injection molded integral structure.

[0074] Specifically, during the two-color injection molding process of the housing 113 and the elastic pad 115, molten material flows from the housing 113 into the injection mold (not shown), and the molten material solidifies to form the elastic pad 115. At this time, the elastic pad 115 and the housing 113 form a tight embedded connection. The elastic pad 115 can deform under external force but will not detach from the housing 113. In the case of two-color injection molding of the elastic pad 115 and the housing 113, the connection between the elastic pad 115 and the housing 113 is relatively tight, which can effectively prevent external liquid from entering the interior of the housing 113 through the through hole 1131. The speaker button structure 10 has a good waterproof effect, and the connection strength between the elastic pad 115 and the housing 113 is high, making it difficult for the elastic pad 115 to loosen relative to the housing 113.

[0075] Please refer to Figure 4 In some embodiments, the elastic pad 115 and the housing 113 are adhesively bonded. In this case, the elastic pad 115 and the housing 113 need to be processed separately, and then the two are glued together to form a whole. In this embodiment, the connection process between the elastic pad 115 and the housing 113 is simplified, and the processing cost of the connection step between the elastic pad 115 and the housing 113 is reduced, thus reducing the production cost of the speaker button structure 10.

[0076] Please refer to Figure 4 In some embodiments, the hardness of the elastic pad 115 is less than the hardness of the housing 113.

[0077] The hardness of the elastic pad 115 is less than that of the housing 113. In this case, the material of the elastic pad 115 is different from that of the housing 113; for example, the elastic pad 115 is silicone, while the housing 113 is rigid plastic. When the button cap 13 is installed on the elastic pad 115, the button cap 13 corresponds to both the elastic pad 115 and the button switch 153. When the button cap 13 is pressed, the pressure is transmitted through the elastic pad 115 to the button switch 153, which is then pressed to realize the button function of the speaker button structure 10. Since the hardness of the elastic pad 115 is less than that of the housing 113, the elastic pad 115 deforms more when subjected to external force. When the button cap 13 is pressed, it applies pressure to the elastic pad 115, causing the elastic pad 115 to deform and transmit the pressure to the button switch 153, which is then pressed to realize the button function of the speaker button structure 10.

[0078] Please refer to Figure 4In some embodiments, the elastic pad 115 includes a first side 11501 and a second side 11502 opposite to each other in a first direction L. A button cap 13 is connected to the first side 11501 of the elastic pad, and the second side 11502 of the elastic pad is provided with a contact portion 1151 and a recess 1153. The contact portion 1151 corresponds to the button switch 153 in the first direction L, and the contact portion 1151 and the button switch 153 respectively contact the two sides of the covering film 17 in the first direction L. The recess 1153 is provided on the outer periphery of the contact portion 1151 and is configured to provide deformation space for the deformation of the elastic pad 115.

[0079] Specifically, in the above embodiment, the first side 11501 and the second side 11502 of the elastic pad are sequentially distributed along the positive direction L1 of the first direction (defined as the direction in which the button cap 13 moves when the speaker button structure 10 is pressed in the first direction L1, and defined as the direction opposite to the positive direction L1 of the first direction L2), and the first side 11501 and the second side 11502 of the elastic pad are opposite to each other. The button cap 13 is connected to the first side 11501 of the elastic pad. The connection between the button cap 13 and the first side 11501 of the elastic pad can be a detachable connection or a non-detachable connection. Detachable connections include, but are not limited to, one or more combinations of screw connections and snap-fit ​​connections. Non-detachable connections include, but are not limited to, one or more combinations of gluing, welding, and sintering methods. When the button cap 13 is pressed or released, the elastic pad 115 moves together with the button 13 in the first direction L through the connection between the first side 11501 and the button cap 13.

[0080] The second side 11502 of the elastic pad is provided with a contact portion 1151 and a recess 1153. The contact portion 1151 is a structure that transmits pressing pressure to the push-button switch 153 via the covering film 17. The shape and size of the contact portion 1151 correspond to the shape and size of the push-button switch 153. The opposite sides of the contact portion 1151 in the first direction L are configured to sequentially contact the button cap 13 and the covering film 17 in the first direction L. The contact portion 1151 corresponds to the push-button switch 153 in the first direction L, and the contact portion 1151 and the push-button switch 153 respectively contact the opposite sides of the covering film 17 in the first direction L. The correspondence between the contact portion 1151 and the push-button switch 153 allows the pressure of the button cap 13 to be better transmitted to the push-button switch 153 via the elastic pad 115, thereby enabling the push-button switch 153 to better respond to each key press by the user. Therefore, the speaker button structure 10 has higher sensitivity.

[0081] The recess 1153 is a spatial structure that provides deformation space for the elastic pad 115. The recess 1153 is located on the outer periphery of the contact portion 1151. Specifically, the recess 1153 can be a continuous annular recess, or it can be multiple recess structures of the same or different shapes. In this application, "multiple" means one or more, such as two, three, four, or more. When the recess 1153 is multiple recess structures of the same or different shapes, the multiple recesses 1153 are not connected to each other. Taking the recess 1153 as a continuous annular recess 1153 as an example, when the button cap 13 is pressed, the elastic pad 115 is subjected to pressure in the first direction L1 and deforms. At this time, the recess 1153 can provide deformation space for the deformation of the elastic pad 115, and increase the elasticity of the elastic pad 115 by reducing at least a portion of the thickness of the elastic pad 115 in the first direction L. When the button cap 13 is released from pressure, the elastic pad 115 has a negative rebound force in the first direction L2, which restores the deformation of the elastic pad 115. At this time, the indentation 1153 also increases the elasticity of the elastic pad 115, making the recovery process of the elastic deformation of the elastic pad 115 easier.

[0082] Please refer to Figure 4 In some embodiments, the button cap 13 includes a body portion 131 and a first connecting portion 133. A second connecting portion 1155 is provided on the first side 11501 of the elastic pad. The first connecting portion 133 is connected to the second connecting portion 1155 so that the button cap 13 is connected to the first side 11501 of the elastic pad.

[0083] Specifically, in the above embodiment, the main body 131 is the component that the user directly presses when pressing the button cap 13. The first connecting part 133 is the component in the button cap 13 used to connect the button cap 13 to the elastic pad 115. The first connecting part 133 is connected to the main body 131 and extends from the main body 131 in the forward direction L1 of the first direction. The connection between the first connecting part 133 and the main body 131 can be a detachable connection or a non-detachable connection. Detachable connections include, but are not limited to, one or more combinations of methods such as screw connections and snap-fit ​​connections. Non-detachable connections include, but are not limited to, one or more combinations of methods such as gluing, welding, and sintering.

[0084] The second connecting portion 1155 is a component in the elastic pad 115 used to connect the elastic pad 115 and the keycap 13. Specifically, the second connecting portion 1155 is configured to connect with the first connecting portion 133 to achieve the connection between the keycap 13 and the elastic pad 115. The second connecting portion 1155 is located on the first side 11501 of the elastic pad; therefore, the keycap 13 is connected to the first side 11501 of the elastic pad through the cooperation of the first connecting portion 133 and the second connecting portion 1155.

[0085] In some embodiments, the first connecting portion 133 is a connecting post, and the second connecting portion 1155 is a plug-in hole, such as... Figure 4 As shown, the number, shape, and size of the connecting posts correspond to the number, shape, and size of the insertion holes. Each connecting post connects to its corresponding insertion hole, thereby connecting the button cap 13 and the elastic pad 15. In other embodiments, the first connecting part 133 is an insertion hole, and the second connecting part 1155 is a connecting post. The number, shape, and size of the insertion holes correspond to the number, shape, and size of the connecting posts. Each insertion hole connects to its corresponding connecting post, thereby connecting the button cap 13 and the elastic pad 15. Therefore, when the button cap 13 is pressed or released, the elastic pad 115 can deform accordingly with the button cap 13. Thus, the elastic pad 115 deforms accordingly to put the button switch 153 in an triggered or untriggered state, and the speaker button structure 10 realizes the button function accordingly.

[0086] In some embodiments, when the button cap 13 is not pressed, the button cap 13 is housed in the through hole 1131, and the outer side of the button cap 13 forms a continuous curved surface with the outer side of the housing 113; when the button cap 13 is pressed, the button cap 13 is housed in the through hole 1131, and the outer side of the button cap 13 is lower than the outer side of the housing 113.

[0087] In the above embodiment, when the button cap 13 is not pressed, it is fully accommodated in the through hole 1131. At this time, the outer surface of the button cap 13 is flush with the outer surface of the housing 113, that is, the outer surface of the button cap 13 and the outer surface of the housing 113 form a continuous curved surface. Therefore, the speaker button structure 10 has no uneven structure on the button cap 13 side, which is more aesthetically pleasing. When the button cap 13 is pressed, it moves along the positive direction L1 of the first direction and is fully accommodated in the through hole 1131. At this time, the outer surface of the button cap 13 and the outer surface of the housing 113 are no longer flush; specifically, the outer surface of the button cap 13 is lower than the outer surface of the housing 113, and the outer surface of the button cap 13 and the outer surface of the housing 113 form a stepped surface (not shown). The relative position of the button cap 13 and the through hole 1131 is set so that when the button cap 13 is not pressed, the outer side of the button cap 13 and the outer side of the housing 113 form a continuous curved surface. The button cap 13 can be well hidden in the through hole 1131. This setting reduces the complexity of the spatial structure of the speaker button structure 10 and makes the speaker button structure 10 look simple. At the same time, this setting also avoids the problem of accidental touch caused by the button cap 13 protruding from the through hole 1131 and being scratched.

[0088] Please refer to Figure 4In other embodiments, when the button cap 13 is not pressed, a portion of the button cap 13 is accommodated in the through hole 1131, and another portion protrudes relative to the outer side of the housing 113; when the button cap 13 is pressed, the button cap 13 is accommodated in the through hole 1131, and the outer side of the button cap 13 does not extend beyond the outer side of the housing 113.

[0089] In the above embodiment, when the button cap 13 is not pressed, at least a portion of the button cap 13 is accommodated in the through hole 1131, and the other portion of the button cap 13 protrudes from the through hole 1131. At this time, the outer surface of the button cap 13 is not flush with the outer surface of the housing 113, that is, the outer surface of the button cap 13 is higher than the outer surface of the housing 113, and the outer surface of the button cap 13 and the outer surface of the housing 113 form a stepped surface. The speaker button structure 10 has an uneven structure on one side of the button cap 13. The button cap 13 moves along the positive direction L1 of the first direction, and the button cap 13 is completely accommodated in the through hole 1131. At this time, the outer surface of the button cap 13 is flush with or not flush with the outer surface of the housing 113, that is, the outer surface of the button cap 13 does not exceed the outer surface of the housing 113. When the button cap 13 is pressed, in one example, when the outer surface of the button cap 13 and the outer surface of the housing 113 are flush, the outer surface of the button cap 13 and the outer surface of the housing 113 form a continuous curved surface. In another example, when the outer surface of the button cap 13 is not flush with the outer surface of the housing 113, the outer surface of the button cap 13 is lower than the outer surface of the housing 113, forming a stepped surface (not shown). The relative position of the button cap 13 and the through hole 1131 is such that when the button cap 13 is not pressed, its outer surface is higher than the outer surface of the housing 113, and it protrudes from the through hole 1131. This arrangement indicates the position of the button cap 13, allowing the user to more intuitively determine its location and increasing the ease of operation of the speaker button structure 10. Simultaneously, because the button cap 13 protrudes from the through hole 1131, its movable distance within the through hole 1131 increases, i.e., the button travel distance. Therefore, the user experiences a more accurate button triggering sensation when pressing the button cap 13, resulting in a better user experience.

[0090] Secondly, this application provides an earphone 1000. The earphone 1000 includes the speaker button structure 10 described in any of the above embodiments.

[0091] The earphone 1000 includes a speaker button structure 10 according to any embodiment of this application. There may be one or more speaker button structures 10. The earphone 1000 is classified as an air conduction earphone or a bone conduction earphone based on the sound transmission medium. When the earphone 1000 is an air conduction earphone, it includes an air conduction speaker (i.e., an air conduction sound unit), which includes a diaphragm horn and a speaker button structure 10. When the earphone 1000 is a bone conduction earphone, it includes a bone conduction speaker (i.e., a bone conduction sound unit), which includes a bone conduction vibrator and a speaker button structure 10.

[0092] The earphone 1000 includes a speaker 100, a battery structure 300, and an ear hook 500. The illustration shows the earphone 1000 as a bone conduction earphone, in which case the speaker 100 is a bone conduction speaker. The speaker 100 is a structure that generates sound through vibration and transmits sound to the user's ear canal through the ear bone. In this case, the speaker button structure 10 is part of the speaker 1000. The speaker button structure 10 is a functional component that provides external control for switching the corresponding functions of the speaker 100, and the first direction L in this application is defined as the thickness direction of the speaker 100, such as... Figure 5 As shown. The battery structure 300 is a structure that provides power to the speaker 100. The battery structure 300 includes a housing and a battery unit (not shown). The battery unit is the device that provides power in the battery structure 300. The battery unit can be a single battery cell or a battery pack composed of multiple battery cells. The battery cell can be, but is not limited to, lithium-ion batteries, nickel-metal hydride batteries, and solar cells. The ear hook 500 is a structure that contacts the back of the human ear when wearing the headphones. The ear hook 500 connects the speaker 100 and the battery structure 300 at opposite ends, and also serves to establish an electrical connection between the speaker 100 and the battery structure 300. Furthermore, the shape of the ear hook 500 is configured to fit the shape of the human ear to facilitate the user's wearing of the headphones. The speaker button structure 10 of this application is used in the speaker 100, which can reduce the proportion of sound transmitted to the user's ear when the user switches functions of the speaker 100, thereby improving the user's headphone experience.

[0093] In the speaker button structure 10 of the headphone 1000 of this application, a diaphragm 17 is disposed on a circuit board 151 and is configured to be lifted by a push-button switch 153 on the circuit board 151, thus forming a noise-reducing cavity 171 between the diaphragm 17 and the circuit board 151. The push-button switch 153 is at least partially housed within the noise-reducing cavity 171. Therefore, when the button cap 13 is pressed, the button cap 13 transmits the pressing force to the push-button switch 153 through the elastic pad 115 and the diaphragm 17, and at least a portion of the sound generated by the push-button switch 153 is blocked by the diaphragm 17. That is, the diaphragm 17 reduces the proportion of sound generated by the push-button switch 153 transmitted to the user's ear, preventing the sound generated by the push-button switch 153 from being confused with the sound emitted by the speaker unit, thereby reducing interference to the user and improving the user's sound reception.

[0094] The technical features of the embodiments described above can be combined arbitrarily. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as the combination of these technical features does not contradict each other, it should be considered within the scope of this specification. Furthermore, other implementation methods can be derived from the above embodiments, allowing for structural and logical substitutions and changes without departing from the scope of this disclosure.

[0095] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A speaker button structure, characterized in that, include: The casing has through holes; An elastic pad is disposed in the through hole and connected to the inner sidewall of the housing, the housing and the elastic pad forming an accommodating cavity; The button cap is connected to the elastic pad and is located outside the receiving cavity; A circuit module, housed within the accommodating cavity, includes a circuit board and a push-button switch disposed on the circuit board, the push-button switch corresponding to the push-button cap; and A deformable film is disposed on the circuit board and located between the push button switch and the elastic pad. The push button switch abuts against the film to lift the film. A noise reduction cavity is formed between the film and the circuit board. The push button switch is at least partially housed in the noise reduction cavity. When the button cap is pressed, the button cap transmits the pressing force to the push button switch through the elastic pad and the film.

2. The speaker button structure according to claim 1, characterized in that, The noise reduction cavity is a sealed cavity, and the push-button switch is completely housed within the noise reduction cavity; the projected area of ​​the coating on the circuit board is greater than or equal to the projected area of ​​the push-button switch on the circuit board, and less than or equal to the area of ​​the circuit board.

3. The speaker button structure according to claim 1, characterized in that, Before being applied to the circuit board, the coating is a flat, flexible film; or, Before being applied to the circuit board, the annular periphery of the coating is a rigid, non-deformable structure, while the middle portion of the coating is a flat, flexible film.

4. The speaker button structure according to claim 1, characterized in that, The coating is fixed to the circuit board by adhesive backing.

5. The speaker button structure according to claim 1, characterized in that, The circuit board is a flexible circuit board, a rigid circuit board, or a combination of flexible and rigid circuit boards; when the circuit board is a flexible circuit board or a combination of flexible and rigid circuit boards, the speaker button structure further includes a support member; the support member is disposed on the side of the circuit board away from the button cap and is connected to the inner wall of the housing, and the support member is configured to connect to the circuit board and support the circuit board.

6. The speaker button structure according to claim 1, characterized in that, The elastic pad and the housing are integral structures formed by two-color injection molding or adhesive bonding, and the hardness of the elastic pad is less than that of the housing.

7. The speaker button structure according to claim 6, characterized in that, The elastic pad includes a first side and a second side opposite to each other in a first direction. The button cap is connected to the first side of the elastic pad, and the second side of the elastic pad is provided with: A contact portion, the contact portion corresponding to the push-button switch in the first direction, and the contact portion and the push-button switch respectively contacting both sides of the coating in the first direction; and A recess is provided on the outer periphery of the contact portion and is configured to provide deformation space for the deformation of the elastic pad.

8. The speaker button structure according to claim 7, characterized in that, The button cap includes a body and a first connecting part. A second connecting part is provided on the first side of the elastic pad. The first connecting part is connected to the second connecting part so that the button cap is connected to the first side of the elastic pad.

9. The speaker button structure according to claim 1, characterized in that, When not pressed, the button cap is housed within the through hole, and the outer surface of the button cap forms a continuous curved surface with the outer surface of the housing; when pressed, the button cap is housed within the through hole, and the outer surface of the button cap is lower than the outer surface of the housing; or, When the button cap is not pressed, a portion of the button cap is housed within the through hole, while the other portion protrudes relative to the outer surface of the housing; when the button cap is pressed, the button cap is housed within the through hole, and the outer surface of the button cap does not extend beyond the outer surface of the housing.

10. An earphone, characterized in that, include: The speaker button structure according to any one of claims 1-9.

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