Key assembly and electronic equipment

By installing the key assembly and the inner side of the housing, the support structure disperses the pressing pressure, the problem of key sinking is solved, and the stability and durability of the key assembly is improved.

CN223260489UActive Publication Date: 2025-08-22TCL TECH ELECTRONICS (HUIZHOU) CO LTD
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Patent Information

Application Number
CN202422440273.X
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-10-09
Publication Date
2025-08-22
Estimated Expiration
2034-10-09

AI Technical Summary

Technical Problem

When existing buttons are directly connected to the shell, the shell may be deformed when used for a long time or subjected to a large force, causing the button to sink, affecting the product function and aesthetics.

Method used

A key assembly is designed to allow the keys to be installed in the inner side of the shell through the support structure, and a gap is formed between the main body and the inner side of the shell to avoid direct contact, and the support structure is used to disperse and absorb pressing pressure, reducing the risk of shell deformation.

Benefits of technology

Effectively prevent keys from sinking, extend service life, improve reliability and aesthetics, reduce local stress concentration, and enhance the stability and durability of key components.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a button assembly and an electronic device, and relates to the technical field of electronic products, the button assembly is installed on a housing of the electronic device, the housing is provided with an installation hole, and the housing is provided with an outer side and an inner side; the key assembly comprises a supporting structure and a key structure, and the supporting structure is arranged on the inner side of the shell in a protruding mode; the key structure comprises a pressing part and a main body part which are connected, the pressing part is in clearance fit with the mounting hole, the main body part is connected with the supporting structure, and the main body part and the inner side face of the shell are suspended through the supporting structure. According to the technical scheme provided by the utility model, the problem that the existing key is easy to sink is solved.
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Description

Technical Field

[0001] The utility model relates to the technical field of electronic products, in particular to a key assembly and an electronic device. Background Art

[0002] Nowadays, competition in the mobile phone and other electronic equipment industries is fierce. The design ideas of mobile phone products are developing towards diversified functions, thinner and smaller overall sizes, and unique and novel appearances. Under such trends, design space is often tight, and many conventional design methods cannot meet design requirements, which brings a lot of trouble to design and production.

[0003] As a crucial component in home appliances, buttons, both their design and installation, have a direct impact on the overall performance and lifespan of the product. In existing electrical appliances, buttons are typically directly connected to the inner side of the housing. Due to the large contact area between the button and the housing, this type of button structure can easily deform at the connection between the housing and the button after prolonged use or when subjected to high pressure, causing the button to sink. In severe cases, this can lead to product failure and even affect the overall appearance of the product. Utility Model Content

[0004] The main purpose of the utility model is to provide a key assembly and an electronic device, aiming to solve the problem that existing keys are prone to sinking.

[0005] To achieve the above-mentioned object, the present invention provides a key assembly mounted on a housing of an electronic device, wherein the housing is provided with a mounting hole, and the housing has an outer side and an inner side. The key assembly includes:

[0006] a supporting structure protruding from the inner side of the housing; and

[0007] The button structure includes a pressing portion and a main body connected to each other, wherein the pressing portion is loosely matched with the mounting hole, the main body is connected to the supporting structure, and the main body is suspended between the supporting structure and the inner side surface of the shell.

[0008] To achieve the above-mentioned object, the present invention further provides an electronic device, comprising:

[0009] a housing having a mounting hole, the housing having an outer side and an inner side; and

[0010] A button assembly is installed on the mounting hole through the supporting structure, and the button assembly is the button assembly described above. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] 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.

[0012] Figure 1 This is a partial structural diagram of the key assembly and the housing in one embodiment of the present invention;

[0013] Figure 2 This is an exploded diagram of the key structure and the support structure in one embodiment of the present invention;

[0014] Figure 3 This is a structural diagram of the key structure of another embodiment of the key assembly provided by the present invention;

[0015] Figure 4 This is a structural schematic diagram of the key structure in another embodiment of the key assembly provided by the utility model.

[0016] Description of Figure Numbers:

[0017] 100. Button assembly; 1. Support structure; 11. Support boss; 12. Positioning column; 2. Button structure; 21. Pressing portion; 22. Main body; 23. Connecting arm; 231. Positioning hole; 200. Housing; 201. Mounting hole; 202. Groove.

[0018] 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

[0019] 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.

[0020] 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.

[0021] 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.

[0022] In existing electrical products, buttons are usually directly connected to the inner side of the shell. Due to the large contact area between the buttons and the inner side of the shell, this button structure is prone to deformation at the connection between the shell and the button when used for a long time or subjected to a large pressing force, causing the button to sink. In severe cases, it may cause the product function to fail and even affect the overall appearance of the product.

[0023] The utility model provides a key assembly.

[0024] See also Figure 1 and Figure 2 In one embodiment of the present invention, the key assembly 100 is mounted on a housing 200 of an electronic device. The housing 200 is provided with a mounting hole 201. The housing 200 has an outer side and an inner side. The key assembly 100 includes:

[0025] A support structure 1 protruding from the inner side of the housing 200; and

[0026] The button structure 2 includes a pressing portion 21 and a main body 22 connected to each other. The pressing portion 21 is loosely matched with the mounting hole 201, and the main body 22 is connected to the support structure 1. The main body 22 is suspended between the support structure 1 and the inner side of the shell 200.

[0027] In the technical solution of the present invention, a mounting hole 201 for mounting the key assembly 100 is provided on the housing 200 of the electronic device. During assembly, the pressing portion 21 on the key structure 2 only needs to be loosely matched with the mounting hole 201, and the main body 22 is mounted on the inner side surface of the housing 200 via the support structure 1. In this way, the pressing function of the key structure 2 can be realized. In this solution, by providing the support structure 1, the main body 22 of the key structure 2 is suspended from the inner side surface of the housing 200, and a certain gap is formed between the key structure 2 and the inner side surface of the housing 200, so that there is no direct contact between the two. In this way, even if the pressing portion 21 is subjected to excessive force during use, the pressure will not be directly transmitted to the housing 200, thereby avoiding the risk of deformation of the housing 200, thereby effectively preventing the key from sinking and extending the service life of the key assembly 100.

[0028] Specifically, the specific construction of the support structure 1 is not specifically limited in this embodiment. Alternatively, the support structure 1 may be a support frame, the edges of which contact the inner side of the housing 200 to provide support, and the main body 22 abuts against the side of the support frame facing away from the housing 200. The support frame may be fixedly connected to the main body 22, for example, by screws or rivets. Alternatively, the support frame may be removably connected to the main body 22, for example, by providing a slot on the surface of the support frame and a buckle on the main body 22, with the buckle and the slot engaging to achieve a fixed connection between the two. Furthermore, the shape of the support frame is not specifically limited and may be circular, square, or other geometric shapes to accommodate different button designs. In other embodiments, the support structure 1 may also comprise a plurality of spaced-apart struts to provide support between the button main body 22 and the inner side of the housing 200. Furthermore, the struts may be height-adjustable to accommodate main body 22s of varying thicknesses.

[0029] In the embodiments of the present invention, please refer to Figure 1 and Figure 2 The outer periphery of the main body 22 is provided with a connecting arm 23, and the supporting structure 1 includes:

[0030] The supporting boss 11 is protruded along the edge of the mounting hole 201; and

[0031] The positioning post 12 is disposed on a side of the supporting boss 11 away from the mounting hole 201 , and one end of the connecting arm 23 away from the main body 22 is fixedly connected to the positioning post 12 .

[0032] Specifically, the support structure 1 in this embodiment includes a support boss 11 and a positioning post 12. A connecting arm 23 connected to the positioning post 12 is provided on the periphery of the main body 22. The connecting arm 23 disperses and absorbs the pressing force applied to the key structure 2 before transmitting it to the positioning post 12, thereby weakening the force applied by the key structure 2 to the positioning post 12 on the housing 200. The thickness and shape of the support boss 11 are not specifically limited; any structure that facilitates the separation and suspension of the main body 22 from the inner side of the housing 200 is acceptable. Furthermore, the protrusion of the support boss 11 along the edge of the mounting hole 201 provides additional stability to the main body 22 on the key structure 2, reducing swing and displacement of the key during use, thereby improving the key's reliability and service life. Furthermore, in this embodiment, the number of positioning posts 12 provided is not specifically limited; a plurality of positioning posts 12 can be evenly spaced along the periphery of the support boss 11 to stably support the main body 22.

[0033] In the embodiments of the present invention, please refer to Figure 3 and Figure 4 The connecting arm 23 is arranged to extend along the circumference of the main body 22, which can increase the torque stroke of the connecting arm 23 within a limited space and evenly disperse the pressing force received by the pressing portion 21, thereby reducing local stress concentration. In another embodiment of the present invention, a plurality of connecting arms 23 are provided at intervals, and the plurality of connecting arms 23 are arranged in a circumferential array along the outside of the main body 22, and the plurality of connecting arms 23 can be evenly distributed. On the one hand, the circumferential array of the connecting arms 23 presents a symmetrical aesthetic, which enhances the appearance design of the key; on the other hand, the circumferential array design of the plurality of connecting arms 23 can effectively transmit the external force acting on the main body 22 to the surrounding of the main body 22, thereby increasing the force transmission stroke, optimizing the force transmission path, and reducing the risk of overall failure due to failure of a single connection point, thereby improving the reliability of the product.

[0034] In the embodiments of the present invention, please refer to Figure 3 and Figure 4 The connecting arm 23 is provided with a positioning hole 231, which is located at the end of the connecting arm 23 away from the main body 22 and is fixedly mounted on the outer periphery of the positioning post 12. The positioning hole 231 can be riveted or welded to the positioning post 12, thereby increasing the stability of the connection between the key assembly 100 and the device housing 200 and reducing loosening and shaking of the key during use. This allows the key assembly 100 to maintain good structural integrity even under long-term use or frequent operation, thereby extending the service life of the key.

[0035] In the embodiments of the present invention, please refer to Figure 4Among the positioning holes 231 on the multiple connecting arms 23, the positioning hole 231 on at least one connecting arm 23 has a different shape from the positioning holes 231 on the other connecting arms 23, and the ends of the multiple positioning posts 12 are respectively adapted to the shapes of the multiple positioning holes 231. In other words, among the multiple positioning holes 231, one or two can have a shape different from the shapes of the other positioning holes 231, such as a circular, oval, square, trapezoidal, or other different designs. This can achieve a foolproof function, avoid incorrect installation of the key structure 2 and the positioning post 12, ensure the correctness and directionality of the key assembly 100 during the installation process, and improve assembly efficiency. It can be understood that the shape of the end of the positioning post 12 should be adapted to the shape of the positioning hole 231 on the pre-connected connecting arm 23.

[0036] In the embodiment of the present invention, the connecting arm 23 is made of an elastic material, such as rubber or spring steel. The elasticity of the connecting arm 23 prevents damage during long-term use. Furthermore, the connecting arm 23 provides a certain degree of elastic cushioning when subjected to external forces, and exerts a force on the inner surface of the housing 200 opposite to the direction of the pressing force, allowing the key structure 2 to reset when the external pressing force is removed, and ensuring that it does not sag during prolonged use.

[0037] Optionally, see Figure 3 The connecting arm 23 and the main body 22 are integrally formed, such as by injection molding or extrusion molding. The integral molding process not only simplifies the production process and reduces the number of assembly steps, but also enhances the strength and durability of the overall structure, avoiding the weaknesses of traditional splicing structures, such as fatigue damage at the joints.

[0038] In the embodiments of the present invention, please refer to Figure 2 The cross-sectional area of ​​the positioning post 12 gradually decreases from the end closest to the housing 200 to the end further away from the housing 200, which helps optimize stress distribution, making the force more even and reducing localized stress concentration. In other words, the positioning post 12 is designed to be almost conical, so the cross-sectional area of ​​the end of the positioning post 12 is relatively small, making it easier to insert into the positioning hole 231 of the connecting arm 23, effectively improving assembly efficiency.

[0039] The present invention also proposes an electronic device, which includes a housing 200 and a key assembly 100. The specific structure of the key assembly 100 refers to the above-mentioned embodiment. Since the present electronic device adopts all the technical solutions of all the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be described one by one here. Among them, a mounting hole 201 is provided on the housing 200, and the housing 200 has a relative outer side and inner side, and the key assembly 100 is installed on the mounting hole 201 through a support structure 1. It is worth mentioning that there is no specific limitation on the shape of the mounting hole 201. For example, it can be a circular, square or other special-shaped hole, as long as it is a shape that is compatible with the pressing portion 21. Of course, in other schemes, the housing 200 can also be a component of the key assembly 100, and the key structure 2 is fixed to the housing 200 through the support structure 1 to form a whole and then installed to the target position on the electronic device.

[0040] In the embodiments of the present invention, please refer to Figure 2 , a groove 202 is provided on the shell 200. The groove 202 is provided on the inner side of the shell 200 and is used to form a space for accommodating the main body 22. In this embodiment, there is no specific limitation on the shape of the groove 202. For example, it can be square or circular, etc., as long as it can accommodate part or all of the main body 22. In addition, the thickness of the groove 202 can be adjusted according to actual conditions. The provision of the groove 202 provides additional accommodating space for the main body 22 of the key structure 2, so that the main body 22 is more firmly embedded in the shell 200, reducing the swing and displacement of the key during use. In addition, the groove 202 is also conducive to reducing the space occupied by the key structure 2 inside the shell 200, so that more space is left inside the shell 200 of the electronic device for placing other components.

[0041] In the embodiment of the present invention, the housing 200 is provided with a limiting boss, which is disposed on the outer side of the housing 200 and protrudes along the edge of the mounting hole 201. The limiting boss protrudes from the outer surface of the housing 200 to prevent the pressing portion 21 from protruding from the outer surface of the housing 200. This not only protects the pressing portion 21 but also accurately defines the installation position of the pressing portion 21, ensuring correct alignment during installation.

[0042] 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 key assembly mounted on a housing of an electronic device, wherein the housing is provided with a mounting hole, and the housing has an outer side and an inner side, wherein: The button assembly includes: a supporting structure protruding from the inner side of the housing; and The button structure includes a pressing portion and a main body connected to each other, wherein the pressing portion is loosely matched with the mounting hole, the main body is connected to the supporting structure, and the main body is suspended between the supporting structure and the inner side surface of the shell.

2. The key assembly according to claim 1, wherein: The outer periphery of the main body is provided with a connecting arm, and the supporting structure includes: A supporting boss is provided protruding along the edge of the mounting hole; and A positioning column is provided on a side of the supporting boss away from the mounting hole, and one end of the connecting arm away from the main body is fixedly connected to the positioning column.

3. The key assembly according to claim 2, wherein: The connecting arm is extended along the circumference of the main body.

4. The key assembly according to claim 3, wherein: A plurality of the connecting arms are arranged at intervals, and the plurality of connecting arms are arranged in a circumferential array along the exterior of the main body.

5. The key assembly according to claim 4, wherein: A positioning hole is provided on the connecting arm. The positioning hole is provided at one end of the connecting arm away from the main body and is fixedly sleeved on the outer periphery of the positioning column.

6. The key assembly according to claim 5, wherein: Among the positioning holes on the multiple connecting arms, the positioning hole on at least one connecting arm has a shape different from the positioning holes on the other connecting arms, and the ends of the multiple positioning columns are respectively adapted to the shapes of the multiple positioning holes.

7. The key assembly according to any one of claims 2 to 6, characterized in that: The connecting arm is made of elastic material; and / or, The connecting arm is integrally formed with the main body; and / or, The cross-sectional area of ​​the positioning post gradually decreases from an end close to the housing to an end away from the housing.

8. An electronic device, characterized in that: The electronic device comprises: a housing having a mounting hole, the housing having an outer side and an inner side; and A key assembly, wherein the key assembly is mounted on the mounting hole through the supporting structure, and the key assembly is the key assembly according to any one of claims 1 to 7.

9. The electronic device according to claim 8, wherein The shell is provided with a groove, which is arranged on the inner side surface of the shell and is used to form a space for accommodating the main body.

10. The electronic device according to claim 8, wherein The shell is provided with a limiting boss, which is arranged on the outer side surface of the shell and protrudes along the hole edge of the mounting hole.