Key structure and device for processing audio data

Abstract

The utility model discloses a key structure and the equipment of processing audio data, the key structure includes equipment shell, circuit board, light touch switch, plastic key and elastic thimble structure. Elastic thimble structure is composed of thimble and spring, and the thimble length adjusts the key stroke, and the spring parameter adjusts the pressing force, realizes the independent control of stroke and pressing force, overcomes the defect that traditional silica gel key adjustment range is limited, is applicable to the scene of touch sensitive such as recording pen, translation equipment. Thimble and spring form stable force transmission path, and compatible multi -specification light touch switch, improve versatility. Thimble assembly can be set in cavity or be supported by shell recess, and the structure is flexible. Plastic key is fixed through buckle, prevents falling off, and recess limit compression stroke, and the contact surface design optimizes the consistency of hand feeling. Propose through zinc alloy support to replace plastic parts to improve the overall machine counterweight and holding quality, be applicable to portable audio product, improve overall user experience and market competitiveness.

Description

Technical Field

[0001] This utility model relates to the field of consumer electronics technology, specifically to a button structure with adjustable travel and pressing pressure. Background Technology

[0002] Consumer electronics, an indispensable part of modern life, are rapidly evolving in technology and are widely used in audio data processing devices such as smartphones, tablets, remote controls, game controllers, and voice recorders. Buttons, as a core component of human-computer interaction, directly impact user experience, and their feel, response speed, and durability are of paramount importance. With increasing market competition and rising user demands for personalized experiences, button design is gradually evolving towards higher precision, adjustability, and multi-scenario adaptability. Traditional button structures prioritize simplicity and low cost, widely employing a combination of tactile switches and silicone pads to meet basic triggering functions. However, with the increasing complexity of consumer electronics and users' pursuit of differentiated tactile feedback—for example, in audio processing devices performing precise recording or real-time translation—button reliability and tactile feedback are particularly crucial. The limitations of traditional button structures in terms of flexibility and adjustability are becoming increasingly apparent, making it difficult to meet the diverse tactile requirements of various scenarios. In recent years, the industry has begun exploring ways to optimize user experience by improving button structures, striving to maintain cost advantages while enhancing the adjustability of button travel and actuation force to adapt to different product positioning and user preferences.

[0003] In existing technology, the structure of a tactile switch button is as follows: Figure 7 The circuit typically consists of a plastic button 1, a silicone pad 10, a tactile switch 2, and a circuit board 8. The tactile switch 2 is soldered onto the circuit board 8, and the PCB is fixed to an inner support with screws. The silicone pad 3 is interference-fitted onto the plastic button 1. When a finger presses the plastic button 1, the pressure is transmitted to the tactile switch through the silicone pad 10, triggering the button function. This structure has the advantages of simple assembly, low cost, and some dust and water resistance, and is widely used in various consumer electronics products. However, the travel and pressing force of this structure are mainly determined by the material properties and geometry of the silicone pad, and its adjustment range is very limited. The elasticity and deformation of the silicone pad are limited by the material itself, making it difficult to achieve significant adjustments in travel or force. For example, in scenarios requiring a long travel to provide a clear tactile feedback, or a short travel for rapid triggering, the existing structure often cannot meet the requirements. Furthermore, the triggering force and travel specifications of the tactile switch itself are fixed; if designers need to change the feel, they usually have to replace the tactile switch with a different model or redesign the silicone pad. This not only increases design and production costs, but also prolongs the development cycle and limits the product's adaptability to different application scenarios.

[0004] Furthermore, the shortcomings of existing technologies in optimizing button feel are also reflected in their poor design flexibility. Because the silicone pad and tactile switch specifications are highly coupled, adjusting the feel usually requires a complete redesign of the entire button module. For example, if the tactile feedback or actuation force needs to be changed, designers may need to customize new silicone pad molds or replace tactile switches with different actuation forces. This not only increases the complexity of the supply chain but may also lead to changes in the product casing design due to size differences between different tactile switch models, thus affecting the overall development schedule. In addition, silicone pads are prone to material aging after long-term use, leading to tactile drift or failure, further reducing the reliability of the button structure and the user experience. In some high-end consumer electronics products, users have particularly strong personalized needs for feel; for example, gaming devices require buttons with a strong tactile feedback, while smart home devices may prefer a softer, linear feel. The limitations of traditional structures make it difficult to meet these needs.

[0005] To address the aforementioned issues, existing technologies have attempted to improve button structures in the following ways to solve the problem of limited travel and force adjustment range. One common method is to adjust the thickness and hardness of the silicone pad, thereby fine-tuning the travel and actuation force by changing its deformation characteristics. However, this method has limited adjustment range and requires new molding, resulting in high costs. Another method is to use tactile switches of different specifications to obtain different trigger forces and travel, but this is also limited by the standardized design of tactile switches, making it difficult to achieve continuous, adjustable travel or force changes. Furthermore, some solutions attempt to introduce additional elastic elements into the button structure, such as small springs or rubber pads, to increase the flexibility of tactile adjustment. However, these solutions typically only focus on adjusting a single parameter, such as changing only the actuation force or only extending the travel, failing to achieve independent adjustment of travel and actuation force, and increasing structural complexity, which may affect assembly efficiency and cost control.

[0006] On the other hand, portable audio data processing devices, while compact in structure, often suffer from being too light due to their plastic casings and lightweight internal supports. This results in a less comfortable grip and insufficient stability. This is especially problematic in scenarios requiring a certain level of operational force or recording precision, where the lightweight body compromises stability and user comfort. Traditional acoustic cavity designs often incorporate plastic supports inside the cavity to control its volume, but the low density of plastic limits its effectiveness in reducing weight.

[0007] In summary, existing technologies still have significant shortcomings in terms of button feel adjustment range, structural compatibility, and weight balance. There is an urgent need for a new button system and overall structural design scheme that is more flexible in structure, has a wider adjustment range, and optimizes grip, in order to improve the overall experience and market adaptability of consumer electronics products. Utility Model Content

[0008] To address the aforementioned technical problems, this utility model provides a button structure with adjustable travel and pressing pressure, as well as a metal bracket structure for increasing the weight of the device, thereby improving button feedback performance and the overall grip feel.

[0009] A button structure includes a circuit board fixed inside a device housing, a tactile switch disposed on the circuit board, a button movably mounted on the surface of the device housing via a snap-fit ​​structure, and a resilient ejector pin structure disposed between the button and the tactile switch. The resilient ejector pin structure consists of an ejector pin and a spring.

[0010] One end of the spring is fixed to the inner wall of the device housing, and the other end is fixedly connected to the lower end of the ejector pin.

[0011] The ejector pin is positioned between the spring and the button, with its upper end abutting against the bottom of the button, and its predetermined length is used to adjust the travel of the plastic button.

[0012] The plastic button, ejector pin, spring, and tactile switch are arranged sequentially along the pressing direction to form a stable force transmission path for triggering the tactile switch.

[0013] Furthermore, a stable force transmission path is formed for triggering the tactile switch.

[0014] Furthermore, the elastic ejector pin structure also includes a lower ejector pin housing and an upper ejector pin housing. The lower ejector pin housing is fixed to the inner wall of the device housing, and the upper ejector pin housing is fixedly connected to the lower ejector pin housing. The ejector pin and the spring are accommodated in the cavity formed by the lower ejector pin housing and the upper ejector pin housing.

[0015] Furthermore, the spring is directly disposed within the groove of the device housing, and the lower end of the ejector pin is accommodated within the groove and fixedly connected to the upper end of the spring.

[0016] Furthermore, the mechanical properties of the spring include at least one of its wire diameter, material, or number of coils, so as to adjust the pressing force of the button by adjusting the wire diameter, material, or number of coils.

[0017] Furthermore, the length of the ejector pin is configured to adjust the travel of the button by adjusting the travel gap; the length of the ejector pin is adjusted by selecting ejector pins of different lengths or adjusting their relative position with the tactile switch to adjust the travel of the plastic button.

[0018] Furthermore, the buckle structure includes a slot on the device housing and a hook on the plastic button, the hook engaging with the slot to prevent the plastic button from falling off.

[0019] Furthermore, the circuit board is provided with screw holes, and the screws pass through the screw holes to fix the circuit board to the inner wall of the device housing.

[0020] Furthermore, the depth of the groove is configured to limit the compression range of the spring in order to control the maximum travel of the button.

[0021] Furthermore, the upper end of the ejector pin is provided with a planar structure, which fits against the bottom of the plastic button to increase the contact area.

[0022] A device for processing audio data, employing any of the above-described button structures, wherein a mounting cavity for mounting a circuit board is formed within the device housing;

[0023] A circuit board is fixedly installed on the inner wall of the device housing, and an audio processing module is provided on the circuit board;

[0024] A speaker assembly, installed within the device housing, the speaker assembly including a speaker disposed on the circuit board;

[0025] A front acoustic cavity structure is located in the sound output direction of the loudspeaker, and the front acoustic cavity is defined by the device housing;

[0026] A bracket, disposed within the front acoustic cavity, is made of metal and fixed to the inner wall of the device housing.

[0027] This invention provides a button structure and an audio data processing device. Its advantage lies in that by introducing a flexible pin structure between the plastic button and the tactile switch, it significantly overcomes the limitations of traditional silicone button structures in terms of limited travel and pressing pressure adjustment range. The flexible pin structure includes a pin and a spring. The length of the pin can be precisely adjusted by selecting different sizes or adjusting its relative position to the tactile switch. The wire diameter, number of coils, or material of the spring can be used to flexibly adjust the pressing pressure. This structure achieves independent adjustment of travel and pressing pressure, offering a wider adjustment range and greater design freedom compared to traditional silicone pad solutions. It can meet the personalized tactile needs of different consumer electronics products and is particularly suitable for scenarios requiring high trigger feedback, such as voice recorders, translation devices, or game controllers.

[0028] Furthermore, this button structure, through the synergy of the ejector pin and spring, forms a stable force transmission path, ensuring that the pressing pressure is sequentially transmitted from the button to the tactile switch, resulting in a stable and reliable trigger response. The structure is compatible with various standard tactile switch specifications, eliminating reliance on specific models, reducing component selection limitations, and improving product versatility and production efficiency. The ejector pin assembly can be housed in a separate housing or supported by recesses in the housing, enabling multiple assembly methods that balance assembly flexibility and cost control, making it suitable for the rapid iteration of consumer electronics device development processes.

[0029] Furthermore, this utility model ensures a firm connection between the plastic button and the outer shell through a snap-fit ​​structure, preventing the button from falling off due to the spring's reaction force; the groove structure limits the spring compression range, which helps control the maximum travel of the button and avoids damage to the tactile switch due to excessive pressing; the flat structure at the top of the ejector pin increases the contact area with the button, improves the uniformity of force transmission, and enhances the consistency of the pressing feel.

[0030] Regarding the optimization of the overall structure, this invention also proposes a metal bracket structure. By replacing the plastic bracket inside the speaker's front cavity with a zinc alloy bracket and fixing it to the inner wall of the device casing with adhesive, the overall weight is significantly increased without changing the device's external dimensions, thus improving the grip. This weight distribution scheme has a simple structure and does not increase assembly complexity. It is particularly suitable for portable audio products that require a premium feel and a balanced center of gravity, helping to enhance product stability and a premium feel.

[0031] In summary, this utility model not only achieves multi-parameter adjustability and structural compatibility at the button structure level, but also introduces a reasonable weight distribution scheme into the overall structure, thereby improving the human-computer interaction performance, manufacturing adaptability, and user experience of consumer electronics products, and possesses good application prospects and market competitiveness. Attached Figure Description

[0032] Figure 1 This is a cross-sectional schematic diagram of the button structure of this utility model;

[0033] Figure 2 This is an exploded view of the button structure of this utility model;

[0034] Figure 3 : This is a cross-sectional view of the stroke adjustment of this utility model;

[0035] Figure 4 This is a schematic diagram showing the button in the unpressed state in this utility model;

[0036] Figure 5 This is a schematic diagram showing the button in the pressed state in this utility model;

[0037] Figure 6: A schematic diagram of the appearance of the audio data processing device in this utility model;

[0038] Figure 7 : A schematic diagram of a button structure in the prior art;

[0039] Figure 8 This utility model is a schematic diagram showing the exploded structure of the metal bracket installed in the front sound cavity of the speaker.

[0040] Figure labels: 1-Plastic button; 2-Tactile switch; 3-Lower housing of ejector pin; 4-Upper housing of ejector pin; 5-Ejector pin; 6-Spring; 7-Equipment housing; 8-Circuit board; 9-Screw; 10-Silicone gasket; 11-Metal bracket; 12-Speaker Detailed Implementation

[0041] The technical solution of this utility model will now be clearly and completely described in conjunction with the accompanying drawings. In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and are only for the convenience of describing this utility model and simplifying the description. They 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0042] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; 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; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0043] The present invention will be further described below with reference to the accompanying drawings.

[0044] To achieve a button structure with adjustable travel and pressing pressure, the specific implementation method is described in detail below with reference to the accompanying drawings. (See attached drawings.) Figure 2 and attached Figure 6 As shown, the overall structure includes a device housing 7, which is the main body of the audio data processing product. It is typically made of plastic or metal and forms a cavity to house the internal components, providing structural support and protection. The inner wall of the device housing 7 has mounting points for installing other components, such as those shown in the attached diagram. Figure 2 Appendix Figure 3As shown. The circuit board 8 is fixed to the inner wall of the device housing 7 by screws 9. The screws 9 pass through the pre-drilled screw holes on the circuit board 8, ensuring that the circuit board 8 is securely fixed to the bottom or inner surface of the side wall of the device housing 7, as shown in the attached diagram. Figure 2 The tactile switch 2 is soldered to the surface of the circuit board 8. Its trigger point is located on the upper surface of the circuit board 8, used to receive the pressing signal and trigger the circuit function, as shown in the attached diagram. Figure 1 Appendix Figure 2 The plastic button 1 is movably mounted on the surface of the device housing 7 via a snap-fit ​​structure. The snap-fit ​​structure consists of a slot on the device housing 7 and a hook on the plastic button 1. The hook engages with the slot to prevent the plastic button 1 from falling off due to the spring force of the spring 6. (See attached image.) Figure 5 As shown within the dashed circle, the snap-fit ​​structure is attached... Figure 2 The details are clearly visible in the center. This structure ensures that the plastic button 1 moves stably during pressing, while also facilitating assembly and disassembly.

[0045] A flexible ejector pin structure is positioned between the plastic button 1 and the tactile switch 2 to enable adjustable button travel and pressing pressure. (See attached image) Figure 2 To be continued Figure 5 As shown, the elastic ejector pin structure includes an ejector pin 5 and a spring 6. In one embodiment, one end of the spring 6 is fixed to the inner wall of the device housing 7, and the other end is fixedly connected to the lower end of the ejector pin 5. The upper end of the ejector pin 5 abuts against the bottom of the plastic button 1, and the lower end, in the unpressed state, is spaced apart from the trigger part of the tactile switch 2, forming an adjustable travel gap. The length of the ejector pin 5 is adjusted by selecting different sized ejector pins or adjusting its relative position to the tactile switch 2 to adjust the button travel. The travel is determined by the gap distance between the lower end of the ejector pin 5 and the tactile switch 2. The mechanical properties of the spring 6 are adjusted by adjusting its wire diameter, material, or number of coils to adjust the pressing force. For example, metal springs with different wire diameters are selected to change the stiffness coefficient. The pressing force is transmitted from the plastic button 1 through the ejector pin 5 and the spring 6 to the tactile switch 2, forming a stable force transmission path. Figure 2 The exploded structure of pin 5 and spring 6 is shown, clearly demonstrating their shape and connection relationship.

[0046] In another preferred embodiment, the elastic ejector pin structure further includes a lower ejector pin housing 3 and an upper ejector pin housing 4, as shown in the attached figure. Figure 2 As shown in the exploded view diagram. The lower outer shell 3 of the ejector pin is fixed to the inner wall of the outer shell 7 of the device. The upper outer shell 4 of the ejector pin is fixedly connected to the lower outer shell 3 of the ejector pin, forming a cavity that accommodates the ejector pin 5 and the spring 6. This cavity restricts the lateral movement of the ejector pin 5 and the spring 6 to ensure the stability of force transmission. The ejector pin 5 moves up and down in the pressing direction within the cavity, as shown in the attached diagram. Figure 4 and attached Figure 5 As shown. The upper end of the ejector pin 5 has a flat structure that fits into the bottom of the plastic button 1, increasing the contact area to improve the uniformity of force transmission and optimize the pressing feel.

[0047] In another embodiment, the ejector pin housing is omitted, and the spring 6 is directly disposed within the groove of the device housing 7. The lower end of the ejector pin 5 is accommodated within the groove and fixedly connected to the upper end of the spring 6. The depth of the groove is configured to limit the compression range of the spring 6, control the maximum travel of the plastic button 1, and prevent excessive pressing from damaging the tactile switch 2. This design simplifies the structure, reduces the number of parts, lowers production costs, and is suitable for space-constrained scenarios. The supporting function of the groove is... Figure 3 The assembly relationship between the ejector pin 5 and the spring 6 is clearly visible.

[0048] The working process is as follows: When the plastic button 1 is not pressed, the spring 6 is in a slightly pre-compressed state, the upper end of the ejector pin 5 abuts against the plastic button 1, and the lower end maintains a gap with the tactile switch 2, as shown in the attached diagram. Figure 5 As shown. When the plastic button 1 is pressed, the force compresses the spring 6 through the ejector pin 5, causing the ejector pin 5 to move down until it contacts and triggers the tactile switch 2, as shown in the attached diagram. Figure 6 and attached Figure 7 As shown. The stroke is determined by the gap between the ejector pin 5 and the tactile switch 2, and the pressing force is determined by the stiffness coefficient of the spring 6 and the triggering force of the tactile switch 2.

[0049] Figure 4 This is a cross-sectional view of the button structure of this utility model in its natural state or unpressed state when not subjected to external force. In this view: the plastic button 1 is at the highest point of its stroke and is positioned by the device housing 7. The spring 6 applies an upward preload to the ejector pin 5, the upper end of the ejector pin 5 is in close contact with the bottom of the plastic button 1, and its lower end maintains a preset stroke gap with the trigger part of the tactile switch 2. At this time, the tactile switch 2 is not activated.

[0050] Figure 5 This is a cross-sectional schematic diagram of the button structure described in this utility model when it is pressed by an external force and reaches the triggered state. Figure 5 In contrast, the display shows the state where the button is pressed and triggers the tactile switch 2. Under external force (as shown by the arrow in the figure), the plastic button 1 moves downwards, compressing the spring 6 via the ejector pin 5. As the ejector pin 5 moves downwards, its lower end overcomes the original gap, contacting and pressing the actuating part of the tactile switch 2, thus activating the switch. In this state, the spring 6 is further compressed, storing energy for the button to reset.

[0051] This embodiment achieves independent adjustment of travel and pressing force through the ejector pin 5 and spring 6, resulting in a wider adjustment range and greater design flexibility. The snap-fit ​​structure enhances the reliability of the plastic button 1, the groove design protects the tactile switch 2, and the flat structure of the ejector pin optimizes tactile consistency. These improvements effectively solve the problems of limited adjustment range and insufficient design flexibility of silicone buttons, meeting diverse tactile needs, improving user experience, while maintaining structural simplicity, making it suitable for various consumer electronics products.

[0052] In another embodiment, as shown in the appendix Figure 6 and 8 As shown, a device for processing audio data is also provided, particularly suitable for handheld voice input / output devices such as translation pens. This device not only utilizes the aforementioned adjustable travel and pressing pressure button structure to enhance the user's operational feedback experience during voice input, but also incorporates a metal support structure for weight optimization within the overall structure to enhance the product's grip stability and tactile feel during use.

[0053] like Figure 8 As shown, the device includes: a device housing 7, which is the main body of the entire device, with an internal cavity structure for mounting the circuit board, speaker 12, and other functional components. It can be made of injection-molded plastic or a composite material with radio frequency permeability; a circuit board, located inside the device housing 7 and fixed to its inner wall by screws or clips. The circuit board integrates a main control chip, a storage module, and an audio processing circuit, used to realize the functions of voice signal acquisition, recognition, processing, and playback, and is the core component for the translation pen to achieve human-computer voice interaction; a speaker assembly, installed near the sound output end of the circuit board, used to output the processed voice signal in the form of sound waves to meet the need for real-time broadcast of translation results; a front sound cavity structure, located on one side of the sound output direction of the speaker 12, partially enclosed by the device housing 7. This cavity is used to adjust the sound wave propagation path and sound quality effect, and its size is usually limited in portable devices; and a metal bracket 11, installed inside the front sound cavity, preferably integrally die-cast from zinc alloy or other high-density metal materials. The bracket is securely fixed to the inner wall of the equipment housing 7 by dispensing or hot melt adhesive, and is inserted and assembled in the direction shown in the figure.

[0054] The metal bracket 11 does not change the device's external dimensions or internal structural layout, and can partially fill the front acoustic cavity space. Without affecting the normal sound output path of the speaker 12, by increasing the mass of the main body, the center of gravity of the whole device is shifted to the rear and the overall weight is increased, thereby enhancing the stability and premium feel of the translation pen in scenarios such as one-handed holding, suspended operation, or frequent button clicks.

[0055] Compared to traditional designs using plastic fillers, the metal bracket not only improves the device's weight distribution but also provides excellent mechanical strength and thermal stability, making it less prone to deformation and warping. This meets the structural strength requirements of high-frequency usage scenarios such as translation pens. Furthermore, the metal bracket's volume is flexibly adjustable, allowing for dimensional optimization to suit various product models based on overall weight requirements.

[0056] The above are merely preferred embodiments of this utility model. It should be noted that those skilled in the art can make various improvements and modifications without departing from the principle of this utility model, and these improvements and modifications should also be considered within the scope of protection of this utility model.

[0057] All other parts of this utility model that are not described in detail belong to the prior art, and therefore will not be described in detail here.

[0058] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A key structure comprising a device housing, a circuit board fixed in said device housing, a dome switch provided on said circuit board, and a key which is movably attached to the surface of said device housing by a snap structure, characterized in that, It also includes a resilient pin structure disposed between the button and the tactile switch, the resilient pin structure consisting of a pin and a spring, wherein: One end of the spring is fixed to the inner wall of the device housing, and the other end is fixedly connected to the lower end of the ejector pin. The ejector pin is positioned between the spring and the button, with its upper end abutting against the bottom of the button, and its predetermined length is used to adjust the travel of the plastic button. The plastic button, ejector pin, spring, and tactile switch are arranged sequentially along the pressing direction to form a stable force transmission path for triggering the tactile switch.

2. The button structure according to claim 1, characterized in that, The elastic ejector pin structure further includes a lower ejector pin housing and an upper ejector pin housing. The lower ejector pin housing is fixed to the inner wall of the device housing, and the upper ejector pin housing is fixedly connected to the lower ejector pin housing. The ejector pin and the spring are accommodated in the cavity formed by the lower ejector pin housing and the upper ejector pin housing.

3. The button structure according to claim 1, characterized in that, The spring is directly disposed in the groove of the device housing, and the lower end of the ejector pin is accommodated in the groove and fixedly connected to the upper end of the spring.

4. The button structure according to claim 1, characterized in that, The mechanical properties of the spring include at least one of its wire diameter, material, or number of coils, so as to adjust the pressing force of the button by adjusting the wire diameter, material, or number of coils.

5. The button structure according to claim 1, characterized in that, The length of the ejector pin is configured to adjust the travel of the button by adjusting the travel gap; the length of the ejector pin is adjusted by selecting ejector pins of different lengths or adjusting their relative position with the tactile switch to adjust the travel of the plastic button.

6. The button structure according to claim 1, characterized in that, The buckle structure includes a slot on the device housing and a hook on the plastic button. The hook engages with the slot to prevent the plastic button from falling off.

7. The button structure according to claim 1, characterized in that, The circuit board has screw holes, and the screws pass through the screw holes to fix the circuit board to the inner wall of the device housing.

8. The button structure according to claim 3, characterized in that, The depth of the groove is configured to limit the compression range of the spring in order to control the maximum travel of the button.

9. The button structure according to claim 1, characterized in that, The upper end of the ejector pin has a planar structure, which fits into the bottom of the plastic button to increase the contact area.

10. A device for processing audio data, employing a button structure according to any one of claims 1-9, characterized in that, The device housing has a mounting cavity for mounting circuit boards. A circuit board is fixedly installed on the inner wall of the device housing, and an audio processing module is provided on the circuit board; A speaker assembly, installed within the device housing, the speaker assembly including a speaker disposed on the circuit board; A front acoustic cavity structure is located in the sound output direction of the loudspeaker, and the front acoustic cavity is defined by the device housing; A bracket, disposed within the front acoustic cavity, is made of metal and fixed to the inner wall of the device housing.

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