Key assembly structure and sound equipment

Abstract

The utility model discloses a button assembling structure and a sound box, and relates to the technical field of button installation, the button assembling structure comprises a housing, a flexible button seat and a button, the housing is provided with a first through hole; the flexible key seat is arranged on one side of the shell, a boss with a second through hole is arranged on the flexible key seat in a protruding mode, and the outer peripheral wall of the boss abuts against the inner peripheral wall of the first through hole for limiting; the key comprises a key cap and a key shaft which are connected, a gap is formed between the key cap and the shell, and the key shaft penetrates through the first through hole and abuts against the inner circumferential wall of the second through hole for limiting.

Description

Technical Field

[0001] The utility model relates to the technical field of key installation, in particular to a key assembly structure and a sound system. Background Art

[0002] With the continuous advancement of technology, consumers' demand for more functional audio equipment is growing, driving the diversification of audio product categories. This trend has also led to a significant increase in the number of buttons on audio equipment, such as Bluetooth connection buttons, multi-function buttons, mute buttons, play / pause buttons, and various key combinations, which together form a rich audio operation interface. To enhance the user experience, these buttons are carefully designed and placed in a prominent position on the front of the audio equipment, making them not only the core of functional operation but also a key element of the appearance design.

[0003] In related technologies, a small gap exists between the key and the product's housing. This is achieved through free-style assembly, which, to a certain extent, affects the uniformity of the gap between the key and the housing. Due to the lack of precise positioning, the key may shift within the housing. This movement can not only cause unwanted vibrations on the key sidewalls during operation, but the uneven key gap can also lead to production stoppages and rework, thus affecting the product's yield rate and market competitiveness. Utility Model Content

[0004] The main purpose of the utility model is to provide a key assembly structure and a speaker, aiming to solve the technical problem of key vibration caused by uneven keys and gaps in the key assembly structure.

[0005] To achieve the above-mentioned purpose, the present invention provides a key assembly structure, which includes:

[0006] A housing, wherein the housing is provided with a first through hole;

[0007] A flexible button seat is provided on one side of the housing, and is provided with a boss having a second through hole, wherein the outer peripheral wall of the boss abuts against the inner peripheral wall of the first through hole for limiting position;

[0008] A key comprises a key cap and a key shaft connected to each other, a gap is formed between the key cap and the shell, the key shaft passes through the first through hole and abuts against the inner peripheral wall of the second through hole for limiting position. BRIEF DESCRIPTION OF THE DRAWINGS

[0009] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying any creative work.

[0010] Figure 1 A schematic diagram of the structure of the key assembly structure provided by the utility model;

[0011] Figure 2 This is an exploded view of the key assembly structure provided by the utility model;

[0012] Figure 3 A schematic cross-sectional view of a key and a flexible key seat provided by the present invention;

[0013] Figure 4 for Figure 3 A partial enlarged view of point A in the middle.

[0014] Description of Figure Numbers:

[0015] 1000. Key assembly structure; 1. Housing; 11. First through hole; 2. Flexible key seat; 21. Boss; 211. Boss; 212. Boss ring; 213. Ring groove; 214. Glue groove; 214a. Second adhesive member; 22. Second through hole; 23. Trapezoidal groove; 24. Receiving groove; 24a. First adhesive member; 3. Key; 31. Keycap; 32. Key shaft.

[0016] The realization of the purpose, functional features and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0018] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components in a certain specific posture. If the specific posture changes, the directional indications will also change accordingly.

[0019] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the present invention, the descriptions of "first", "second", etc. are only for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited to "first" and "second" may explicitly or implicitly include at least one of such features. In addition, if "and / or" or "and / or" appears in the full text, its meaning includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme in which A and B are satisfied at the same time. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is mutually contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0020] The utility model provides a button assembly structure.

[0021] See also Figures 1 to 4 In one embodiment of the present utility model, the key assembly structure includes a shell 1, a flexible key seat 2 and a key 3, the shell 1 is provided with a first through hole 11; the flexible key seat 2 is arranged on one side of the shell 1, and the flexible key seat 2 is provided with a boss 21 with a second through hole 22, and the outer peripheral wall of the boss 21 abuts against the inner peripheral wall of the first through hole 11 for limiting position; the key 3 includes a key cap 31 and a key shaft 32 connected thereto, a gap is formed between the key cap 31 and the shell 1, the key shaft 32 passes through the first through hole 11, and abuts against the inner peripheral wall of the second through hole 22 for limiting position.

[0022] In this embodiment, the key assembly structure can be applied to electronic products, especially audio products. The housing 1 is used to provide protection for the key 3 and provide structural support; the first through hole 11 is used to guide the installation of the key 3. Preferably, the cross-section of the first through hole 11 is circular, and its diameter is determined according to the size of the key 3 and the required assembly accuracy. The circumferential gap between the inner wall of the first through hole 11 and the outer wall of the key is consistent. The flexible key seat 2 is used to ensure that the key can be correctly and stably installed in the housing 1 of the electronic product and realize the function of the key. The boss 21 is used to ensure the precise positioning of the flexible key seat 2 in the housing 1, and the second through hole 22 is used to locate and limit the key shaft 32 of the key 3. The key cap 31 is the part that the key 3 directly contacts and operates, and the key shaft 32 is used to support the key 3 and is located below the key cap 31. It is the part that the key 3 can move up and down. Preferably, the material of the flexible key seat 2 is a flexible material such as polyimide and silicone. Silicone material is used here. Correspondingly, the flexible key seat 2 can be directly fixed to the housing 1 by bolt connection, clamping, welding, bonding, etc., and the above methods can ensure that the key will not loosen during use. Furthermore, the key and the flexible key seat 2 have an interference fit, and mechanical press-fitting, heat sleeve, cold shrinkage, etc. can be used for interference fit. Preferably, mechanical press-fitting is used here, and the flexible key seat 2 is a silicone key seat here, which has a hardness of 70 degrees and has high tensile strength and wear resistance. The outer peripheral wall of the boss 21 is interference fit with the inner peripheral wall of the first through hole 11, and the single-sided error of the interference is 0.01-0.05mm. By extrusion. The outer peripheral wall of the boss 21 of the flexible key seat 2 is pressed into the first through hole 11 of the housing 1, and the key shaft 32 of the key 3 passes through the first through hole 11 and has an interference fit with the inner peripheral wall of the second through hole 22, so that the circumferential gap between the key cap 3 and the first through hole 11 is consistent, and the key 3 is centered relative to the first through hole 11 to achieve the effect of uniform gap around the key 3.

[0023] The technical solution of the present invention ensures the stability of the assembly of the key 3 by providing a first through hole 11 on the shell 1, a boss 21 protruding from the flexible key seat 2, the outer peripheral wall of the boss 21 abutting and limiting the inner peripheral wall of the first through hole 11, and the inner peripheral wall of the boss 21 abutting and limiting the inner peripheral wall of the key 3, so that the key 3 is centered relative to the shell 1, and a uniform gap is achieved between the key 3 and the shell 1; and the flexible key seat 2, due to its flexible characteristics, can absorb and disperse the vibration energy of the key 3 during the pressing process by deformation, reduce the vibration transmission to the shell 1, and thus reduce the vibration problem caused by the uneven gap of the key 3.

[0024] In one embodiment of the present invention, the boss 21 includes a boss 211 and a boss ring 212 provided on the flexible button seat, the boss ring 212 is provided on the periphery of the boss 211, the second through hole 22 passes through the boss 211 and the boss ring 212, and an annular groove 213 is formed between the boss 211 and the boss ring 212 to provide an elastic deformation space for pressing the button.

[0025] In this embodiment, the boss 211 is used to provide positioning for the key shaft 32, the convex ring 212 is used to provide an interference fit for the first through hole 11, and the annular groove 213 is used to provide a deformation margin when the key is pressed down, and to make it rebound to the initial state of the key. Preferably, the outer circle of the convex ring 212 is interference fit with the outer circle of the first through hole 11, and the unilateral error of the interference is 0.01-0.05mm, so that the first through hole 11 and the convex ring 212 of the flexible key seat 2 are automatically centered without eccentricity. The inner circle of the second through hole 22 is interference fit with the inner circle of the key, and the unilateral error of the interference is 0.01-0.05mm, so that the second through hole 22 and the key shaft 32 are automatically centered without eccentricity. The above-mentioned setting method helps to realize the flexible key seat 2 being centered relative to the housing 1, and the key being centered relative to the flexible key seat 2, so that the circumferential gap between the key and the first through hole 11 is uniform.

[0026] In one embodiment of the present invention, the bottom wall of the annular groove 213 is inclined, and an end of the bottom wall of the annular groove close to the protruding ring 212 is located below an end of the bottom wall of the annular groove 213 away from the protruding ring 212 .

[0027] In this embodiment, the angled annular groove 213 provides greater deformation space, resulting in a more pronounced rebound effect when the key is released, enhancing the user's feel. Preferably, the annular groove on the flexible key holder is made of silicone, ensuring that the annular groove 213 can withstand repeated pressing and releasing without permanent deformation. This arrangement of the annular groove 213 stores energy when the key is pressed and releases it when it is released, achieving a good elastic response.

[0028] In one embodiment of the present invention, a trapezoidal groove 23 is defined on a side of the flexible button seat 2 facing away from the housing 1 , and the second through hole 22 passes through the bottom wall of the trapezoidal groove 23 and communicates with the trapezoidal groove 23 .

[0029] In this embodiment, the trapezoidal groove 23 is used to ensure that the key rebounds, giving the key a good feel. Preferably, a trapezoidal ring is provided in the trapezoidal groove 23 and fixed in the trapezoidal groove 23 by bonding. This arrangement helps ensure that the key rebounds and prevents the key from sinking.

[0030] In one embodiment of the present utility model, the second through hole 22 has a first hole section and a second hole section that are connected. The first hole section is located at the end of the second through hole 22 close to the key, and the second hole section is located at the end of the second through hole 22 away from the key. The first hole section is provided with a limited step along the extension direction of the inner circumferential wall of the first hole section, and the second hole section is connected to the trapezoidal groove 23.

[0031] In this embodiment, the step-restricted design of the first hole section facilitates better key assembly, while the connection between the second hole section and the trapezoidal groove 23 facilitates key springback. This arrangement ensures that the key shaft 32 precisely mates with the inner ring of the keycap 31 during installation, providing a stable connection. It also helps maintain the key shaft 32's stability between the keycap 31 and the key base, reducing wobble during use.

[0032] In one embodiment of the present invention, a groove 24 is formed on the side of the flexible button seat 2 facing the housing 1 , and the boss 21 is accommodated in the groove 24 . A first adhesive member 24 a is provided in the groove 24 , and the first adhesive member 24 a connects the flexible button seat 2 and the housing 1 .

[0033] In this embodiment, the groove 24 is used to accommodate an adhesive member to connect the flexible key seat 2 to the housing 1. Accordingly, the first adhesive member 24a can be a double-sided tape, silicone pad, or the like. Double-sided tape is preferably used here to help provide a uniform and stable bonding effect, ensuring a tight fit between the flexible key seat 2 and the housing 1. At the same time, the double-sided tape can form a good seal, helping to improve the waterproof and dustproof performance of the entire key assembly structure. Furthermore, to facilitate the installation of the housing 1 on the flexible key seat 2, the side walls of the flexible key seat 2 are arranged to gradually expand in a direction away from the bottom wall of the groove. The first adhesive member 24a achieves an effective connection between the flexible key seat 2 and the housing 1.

[0034] In one embodiment of the present invention, a glue groove 214 is formed on one side of the boss 21 facing the keycap 31. The second through hole 22 penetrates the wall of the glue groove 214. A second adhesive member 214a is provided in the glue groove 214. The second adhesive member 214a connects the flexible key base 2 and the keycap 31.

[0035] In this embodiment, the adhesive groove 214 is used to accommodate an adhesive member to connect the flexible key base 2 to the key. Accordingly, the second adhesive member 214a can be an adhesive or glue, such as silicone adhesive or silicone glue, with a dispensing process being preferred. The second adhesive member 214a effectively connects the flexible key base 2 to the keycap 31.

[0036] In one embodiment of the present invention, the keycap 31 is provided with an inner ring that matches the shape of the boss 21 , and the inner circumferential wall of the inner ring abuts against the outer circumferential wall of the second through hole 22 for limiting position.

[0037] In this embodiment, the inner ring is used to ensure the accurate positioning of the keycap 31 during installation, reducing installation errors. The above arrangement helps to prevent the keycap 31 from shaking or shifting during use, and also reduces wear caused by frequent use.

[0038] In one embodiment of the present invention, the key shaft 32 is elliptical in shape, and the shape of the second through hole 22 matches the shape of the key shaft 32 .

[0039] In this embodiment, the key shaft is elliptical in shape to accommodate the user's pressing action; however, the key shaft shape is not limited to circular, semi-arc, or other shapes and can be configured according to specific needs. Accordingly, the shape of the second through hole is adapted to the key shaft shape. This arrangement helps improve the stability of the key, reduces shaking and loosening during use, and ensures smooth movement of the keycap 31 when pressed.

[0040] The present invention also provides a speaker comprising the aforementioned key assembly structure. The specific structure of the key assembly structure is described with reference to the aforementioned embodiments. Since the speaker utilizes all of the technical solutions of all of the aforementioned embodiments, it possesses at least all of the beneficial effects brought about by the technical solutions of the aforementioned embodiments, which will not be detailed here. The provision of the key assembly structure reduces the occurrence of vibrato during actual use of the speaker. Furthermore, the gap between the key and the housing 1 is reduced, which satisfies the aesthetics of the key in speaker applications, making it more attractive to consumers. Furthermore, the precise key assembly structure provides a better tactile feel and feedback, improving the user experience.

[0041] The above description is merely an exemplary embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made using the contents of the present invention specification and drawings under the technical concept of the present invention, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A button assembly structure, characterized in that: The button assembly structure includes: A housing, wherein the housing is provided with a first through hole; A flexible button seat is provided on one side of the housing, and is provided with a boss having a second through hole, wherein the outer peripheral wall of the boss abuts against the inner peripheral wall of the first through hole for limiting position; A key comprises a key cap and a key shaft connected to each other, a gap is formed between the key cap and the shell, the key shaft passes through the first through hole and abuts against the inner peripheral wall of the second through hole for limiting position.

2. The key assembly structure according to claim 1, wherein: The boss includes a boss and a boss ring provided on the flexible button seat, the boss ring is provided on the periphery of the boss, the second through hole passes through the boss and the boss ring, and an annular groove is formed between the boss and the boss ring to provide an elastic deformation space for pressing the button.

3. The key assembly structure according to claim 2, wherein: The bottom wall of the annular groove is arranged to be inclined, and an end of the bottom wall of the annular groove close to the convex ring is located below an end of the bottom wall of the annular groove away from the convex ring.

4. The key assembly structure according to claim 1, wherein: A trapezoidal groove is formed on a side of the flexible button seat facing away from the housing, and the second through hole passes through the bottom wall of the trapezoidal groove and is communicated with the trapezoidal groove.

5. The key assembly structure according to claim 4, wherein: The second through hole has a first hole section and a second hole section that are connected. The first hole section is located at an end of the second through hole close to the button, and the second hole section is located at an end of the second through hole away from the button. The first hole section has a limited step along the extension direction of the inner circumferential wall of the first hole section, and the second hole section is connected to the trapezoidal groove.

6. The key assembly structure according to claim 1, wherein: A receiving groove is formed on a side of the flexible button seat facing the shell. The boss is accommodated in the receiving groove. A first adhesive member is provided in the receiving groove. The first adhesive member connects the flexible button seat and the shell.

7. The key assembly structure according to claim 1, wherein: A glue groove is formed on a surface of the boss facing the keycap. The second through hole penetrates the wall of the glue groove. A second adhesive member is provided in the glue groove. The second adhesive member connects the flexible key seat and the keycap.

8. The key assembly structure according to any one of claims 1 to 7, characterized in that: The keycap is provided with an inner ring which matches the shape of the boss, and the inner peripheral wall of the inner ring abuts against the outer peripheral wall of the second through hole for limiting position.

9. The key assembly structure according to any one of claims 1 to 7, wherein: The key shaft is elliptical in shape, and the shape of the second through hole is adapted to the shape of the key shaft.

10. A sound system, characterized in that: The speaker includes the key assembly structure according to any one of claims 1 to 9.

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