Electronic equipment protective shell

By employing a die-cast connection structure and injection molding process in the protective casing of electronic devices, the issues of button reset elasticity and dust prevention have been resolved, improving button feel and appearance quality.

CN224083573UActive Publication Date: 2026-04-03SHENZHEN MAGIC CUBE DIGITAL TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-03-19
Publication Date
2026-04-03

AI Technical Summary

Technical Problem

The button structure of existing electronic device protective cases cannot simultaneously address the issues of button reset elasticity and dust prevention. In particular, independent button structures are prone to wobbling and dust accumulation, while the overall button structure has poor tactile feedback and the risk of dust accumulation due to its cut design.

Method used

The design employs a mortise and tenon joint structure, where the buttons and button mounting holes are fixed together with soft rubber. The injection molding process ensures a tight bond between the two materials, forming an integral structure that enhances the connection strength between the buttons and the protective shell. Furthermore, the stepped design increases the contact area between the soft rubber and the buttons, improving the button feel and dustproof performance.

Benefits of technology

It improves the button's reset elasticity and feel, while effectively preventing dust from entering, thus enhancing the button's user experience and aesthetic appearance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of electronic equipment accessories, and discloses an electronic equipment protective shell, which comprises a protective shell body and at least one key, the protective shell body comprises a frame and a bottom plate, the frame and the bottom plate are connected to form an accommodating cavity for accommodating electronic equipment, and the frame is provided with at least one key mounting hole; the key is arranged in the key mounting hole, flexible glue is filled between the key and the key mounting hole, and the flexible glue respectively wraps and fixes at least part of the key and at least part of the key mounting hole. The electronic equipment protective shell provided by the utility model can give consideration to the reset elastic force of the key and effectively prevent dust.
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Description

Technical Field

[0001] This utility model relates to the field of electronic device accessories technology, specifically to an electronic device protective case. Background Technology

[0002] Currently, most electronic device protective cases, such as mobile phone cases, are made of PC material, and their button structures are mostly integrated buttons or independent buttons.

[0003] However, for integrated button structures, a slit is cut on one side of the button to increase its elasticity and ensure a good tactile feel. But if the slit is too small, the button feel is unsatisfactory, the return spring is weak, and there is a risk of oil accumulation. If the slit is too large, it increases the risk of dust accumulation and is less aesthetically pleasing. For independent button structures, due to the relatively hard housing material, soft rubber independent buttons are mostly used to ensure easy assembly. However, after assembly, independent buttons are prone to wobbling and making noises. The gap between the button and the housing also easily traps dust, leading to uneven pressing. Utility Model Content

[0004] In view of the above problems, this utility model provides a protective case for electronic devices to solve the technical problem that existing protective cases for electronic devices cannot simultaneously ensure the elasticity of button reset and prevent dust from entering.

[0005] According to one aspect of the present invention, an electronic device protective case is provided, the electronic device protective case including a protective case body and at least one button;

[0006] The protective shell body includes a frame and a bottom plate. The frame and the bottom plate are connected to form a cavity for accommodating electronic devices. At least one button mounting hole is provided on the frame.

[0007] The button is located inside the button mounting hole, and soft glue is filled between the button and the button mounting hole. The soft glue covers and fixes at least a portion of the button and the button mounting hole so that the button and the button mounting hole form a sleeve connection.

[0008] In one alternative embodiment, the button includes an outer pressing part, a connecting part, and an inner pressing part connected in sequence.

[0009] The connecting part includes a first connecting groove arranged circumferentially, and the soft rubber part is filled in the first connecting groove to form a fixed connection with the first connecting groove;

[0010] The outer pressing portion protrudes at least partially from the outside of the button mounting hole, and the inner pressing portion protrudes at least partially from the inside of the button mounting hole.

[0011] In one alternative embodiment, the first connecting groove is provided with a first stepped portion for increasing the contact area between the soft rubber and the connecting portion.

[0012] In one alternative embodiment, the first step portion includes at least a first outer step close to the outer surface of the frame and a first inner step away from the outer surface of the frame; the first inner step and the first outer step form a stepped structure in the vertical direction, and the width of the first outer step in the horizontal direction is greater than the width of the first inner step.

[0013] In one alternative embodiment, the outer pressing portion includes at least two pressing positions disposed above the connecting portion along the length direction;

[0014] The connecting part is further provided with a second connecting groove in the area between each of the pressing positions, and the soft rubber part is filled into the second connecting groove and fixedly connected to the second connecting groove.

[0015] In one alternative embodiment, the button mounting hole includes a second step portion arranged circumferentially; the second step portion includes at least a second inner step away from the outer surface of the frame and a second outer step close to the outer surface of the frame; the second inner step and the second outer step form a stepped structure in the vertical direction, and the width of the second inner step in the horizontal direction is greater than the width of the second outer step.

[0016] In one alternative embodiment, the soft rubber is configured as a ring-shaped structure with uniform width, and the button is located in the middle of the soft rubber of the ring-shaped structure.

[0017] In one alternative embodiment, the lower surface of the outer pressing part is connected to the connecting part, the upper surface of the outer pressing part is an arc surface, and the side surface of the outer pressing part is a sloping structure, the width of the sloping structure gradually increasing from the end away from the connecting part to the end close to the connecting part.

[0018] In one alternative embodiment, the upper surface of the inner pressing part is connected to the lower end of the connecting part, the lower surface of the inner pressing part is used to contact the button of the electronic device, and the side surface of the inner pressing part is a slope; the width of the side surface of the inner pressing part gradually decreases from the end closer to the connecting part to the end farther away from the connecting part.

[0019] In one alternative embodiment, the button is made of any one of PC, TPU, and metal; the soft rubber is made of any one of TPU, TPE, or silicone.

[0020] This embodiment of the electronic device protective case includes a protective case body and at least one button. The protective case body includes a frame and a base plate. The frame and the base plate are connected to form a receiving cavity for accommodating the electronic device. At least one button mounting hole is provided on the frame. The button is located in the button mounting hole. Soft adhesive is disposed between the button and the button mounting hole. The soft adhesive covers and fixes at least a portion of the button and the button mounting hole, so that the button and the button mounting hole form a crimped connection structure. By crimping the button to the protective case body through soft adhesive, the button's return elasticity is ensured, the button's feel is improved, and dust is prevented from entering.

[0021] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more obvious and understandable, specific embodiments of this utility model are given below. Attached Figure Description

[0022] Various other advantages and benefits will become apparent to those skilled in the art upon reading the following detailed description of preferred embodiments. The accompanying drawings are for illustrative purposes only and are not intended to limit the scope of the invention. Furthermore, the same reference numerals denote the same parts throughout the drawings. In the drawings:

[0023] Figure 1 A perspective view of an embodiment of the electronic device protective case provided by this utility model is shown;

[0024] Figure 2 An exploded view of an electronic device protective case according to an embodiment of the present invention is shown.

[0025] Figure 3 This invention provides a schematic diagram of the button structure of an electronic device protective case according to an embodiment of the present invention.

[0026] Figure 4 This diagram shows an enlarged view of part A of the button in an electronic device protective case provided by an embodiment of the present invention;

[0027] Figure 5 This invention provides a three-dimensional schematic diagram of an electronic device protective case according to an embodiment of the present invention from another angle.

[0028] Figure 6 This diagram shows an enlarged view of position B of the button mounting hole 130 in a three-dimensional perspective view of an electronic device protective case provided in an embodiment of the present invention.

[0029] The reference numerals in the detailed embodiments are as follows:

[0030] The components include a base plate 110, a frame 120, a button mounting hole 130, a second step 1301, a second inner step 1301A, a second outer step 1301B, a button 200, an outer pressing part 210, a connecting part 220, a first connecting groove 2201, a second connecting groove 2202, a first step 2203, a first inner step 2203A, a first outer step 2203B, an inner pressing part 230, and soft rubber 300. Detailed Implementation

[0031] The embodiments of the present invention will now be described in detail with reference to the accompanying drawings. These embodiments are merely illustrative of the present invention and should not be construed as limiting the scope of protection of the present invention.

[0032] Please see Figure 1 , Figure 1 A perspective view of an embodiment of the electronic device protective case of this utility model is shown. Figure 2 An exploded view of an embodiment of the electronic device protective case of this utility model is shown. This protective case can be fitted onto an electronic device to protect it. The electronic device can be a mobile phone, tablet, educational device, or other tablet-like electronic device, especially a mobile phone.

[0033] The electronic device protective case includes a protective case body and at least one button 200. The protective case body includes a frame 120 and a base plate 110. The frame 120 and the base plate 110 are connected to form a receiving cavity for accommodating the electronic device. At least one button mounting hole 130 is provided on the frame 120. The button 200 is located within the button mounting hole 130. Soft rubber 300 is filled between the button 200 and the button mounting hole 130. The soft rubber 300 covers and fixes at least a portion of the button 200 and the button mounting hole 130, forming a ferrule connection structure. Ferrule connection refers to bonding a product that has undergone a first injection molding process with a new material through a second injection molding (usually soft rubber 300 or other materials) to form a single integrated structure. This embodiment of the utility model uses injection molding to tightly bond two materials during the molding process, thereby achieving a tight bond between the electronic device protective shell and the button 200. Since the button 200 is the first injection molded material, it is a hard plastic or metal material with a certain hardness. Through the second injection molding, the button 200 and the protective shell body are tightly bonded by soft plastic 300, thus ensuring the feel of the button 200 while effectively preventing dust from entering the gaps.

[0034] In this embodiment of the utility model, such as Figure 3 As shown, the button 200 includes an outer pressing part 210, a connecting part 220, and an inner pressing part 230 connected in sequence. The lower end of the outer pressing part 210 is connected to the upper end of the connecting part 220, and the lower end of the connecting part 220 is connected to the upper end of the inner pressing part 230. The outer pressing part 210 at least partially protrudes from the outer side of the button mounting hole 130 for user pressing. The inner pressing part 230 at least partially protrudes from the inner side of the button mounting hole 130 for contact with the electronic device button, so that when the user presses the upper surface of the outer pressing part 210, the inner pressing part 230 transmits pressing force to the electronic device button. The electronic device button includes volume buttons, a power button, etc., and the corresponding button 200 of the electronic device protective case includes volume buttons, a power button, etc.

[0035] Among them, such as Figure 4 As shown, the connecting portion 220 includes a first connecting groove 2201 arranged circumferentially, used to inject the soft rubber 300 material during injection molding and form a fixed connection after cooling. In one embodiment of the present invention, since the width of the connecting portion 220 can be smaller than the width of the outer pressing portion 210 and the inner pressing portion 230, the connecting portion 220 can be sandwiched between the outer pressing portion 210 and the inner pressing portion 230. Therefore, the first connecting groove 2201 of the connecting portion 220 can be the first connecting groove 2201 formed between the connecting portion 220 and the outer pressing portion 210 and the inner pressing portion 230.

[0036] In another embodiment of this utility model, the first connecting groove 2201 can also be provided on the connecting portion 220 itself. There can be one or more first connecting grooves 2201, and this utility model does not impose a specific limitation. In one specific implementation, the first connecting groove 2201 is provided near the lower end of the connecting portion 220, and the soft adhesive 300 partially fills the first connecting groove 2201, forming a fixed connection with it. The first connecting groove 2201 is provided with a first stepped portion 2203 to increase the contact area between the soft adhesive 300 and the connecting portion 220. Specifically, the first step portion 2203 includes at least a first outer step 2203B near the outer surface of the frame 120 and a first inner step 2203A away from the outer surface of the frame 120; the first inner step 2203A and the first outer step 2203B are arranged around the first connecting groove 2201, and the first inner step 2203A and the first outer step 2203B form a stepped structure in the vertical direction, and the width of the first outer step 2203B in the horizontal direction is greater than the width of the first inner step 2203A in the horizontal direction. (See also...) Figure 3 and Figure 4The horizontal direction refers to the direction parallel to the outer surface of the frame 120, which is also the length direction of the button 200. The vertical direction refers to the direction perpendicular to the outer surface of the frame 120. Since the first inner step 2203A and the first outer step 2203B are arranged around the first connecting groove 2201, the step surfaces of the first outer step 2203B and the first inner step 2203A are parallel to the horizontal direction. The width of the first inner step 2203A refers to the sum of the width of the portion overlapping with the first outer step 2203B and the width of the step surface of the first inner step 2203A. That is, in this embodiment of the invention, by setting multiple steps, the contact area between the soft rubber 300 and the connecting part 220 can be effectively increased, thereby enhancing the connection strength.

[0037] In one embodiment of this utility model, the inner pressing part 230 includes at least two pressing positions arranged along the length direction above the connecting part 220. When the length of the button 200 is greater than a preset length threshold or there are multiple pressing positions, a second connecting groove 2202 is further provided on the connecting part 220 in the area between each pressing position for injecting soft rubber 300 material during injection molding. The soft rubber 300 is partially filled into the second connecting groove 2202 and fixedly connected to the second connecting groove 2202. By providing the second connecting groove 2202, the contact area between the connecting part 220 and the soft rubber 300 is further increased, thereby further enhancing the connection strength.

[0038] like Figure 5 and Figure 6As shown, in one embodiment of this utility model, the button mounting hole 130 includes a second step portion 1301 arranged circumferentially; the second step portion includes at least a second inner step 1301A away from the outer surface of the frame 120 and a second outer step 1301B close to the outer surface of the frame 120; the second inner step 1301A and the second outer step 1301B form a stepped structure in the vertical direction, and the width of the second inner step 1301A in the horizontal direction is greater than the width of the second outer step 1301B in the horizontal direction. Here, the horizontal direction refers to the direction parallel to the outer surface of the frame 120, that is, the length direction of the button mounting hole 130, and the vertical direction refers to the direction perpendicular to the outer surface of the frame 120. In this design, the second inner step 1301A and the second outer step 1301B are arranged around the periphery of the button mounting hole. The step surfaces of the second inner step 1301A and the second outer step 1301B are parallel to the horizontal direction. The width of the second inner step 1301A refers to the sum of the vertical overlap between the second inner step 1301A and the second outer step 1301B and the width of the step surface of the second inner step 1301A. By designing the step width of the button mounting hole 130, the contact area between the soft rubber and the button mounting hole 130 can be increased, further improving the connection strength. It can also effectively prevent the soft rubber 300 from sinking and falling into the protective shell body when pressed. By providing a second step portion 1301 in the button mounting hole 130, which corresponds to the first step portion 2203 in the first connecting groove 2201, the two steps are less likely to separate after the soft rubber 300 is filled.

[0039] The button 200 has an elongated oval structure, specifically a long strip with elliptical arc surfaces at both ends, resembling a rectangle with rounded ends. Specifically, the connecting portion 220 can be an elongated strip structure, with one or more inner pressing portions 230 positioned along its length at the lower end, and one or more outer pressing portions 210 positioned along its length at the upper end. The soft rubber 300 is correspondingly configured as a uniformly wide annular structure, with the button 200 located in the center of the annular soft rubber 300, ensuring uniform force distribution when the button 200 is pressed. In this embodiment, the upper surface of the outer pressing portion 210 is an arc surface; the side surface of the outer pressing portion 210 is a sloping structure, with the width of the sloping structure gradually increasing from the end furthest from the connecting portion 220 to the end closest to the connecting portion 220. This design effectively increases the contact area between the outer pressing part 210 and the user's fingers, reduces pressure, and, combined with the elasticity provided by the soft rubber 300, further enhances pressing comfort.

[0040] In this embodiment of the invention, the lower surface of the inner pressing part 230 is used to contact the electronic device button 200, and the side surface of the inner pressing part 230 is inclined. The width of the side surface of the inner pressing part 230 gradually decreases from the end near the connecting part 220 to the end away from the connecting part 220, thereby reducing the contact area between the inner pressing part 230 and the electronic device button, thus enabling more precise transmission of pressing force and improving the pressing feel.

[0041] In one embodiment of this utility model, the button 200 can be made of any one or more of PC, TPU, and metal; the soft rubber 300 can be made of TPU, TPE, or silicone. The button 200 can be made of metal to enhance the product's texture. Furthermore, the surface of the button 200 can be coated with a material, color, etc.

[0042] This embodiment of the electronic device protective case includes a protective case body and at least one button 200. The protective case body includes a frame 120 and a base plate 110. The frame 120 and the base plate 110 are connected to form a receiving cavity for accommodating the electronic device. At least one button mounting hole 130 is provided on the frame 120. The button 200 is located in the button mounting hole 130 and is connected to the protective case body by a soft adhesive 300. By connecting the button 200 to the protective case body by the soft adhesive 300 through the soft adhesive, the button 200 can be guaranteed to have a return elasticity, improving the feel of the button 200, while preventing dust from entering.

[0043] It should be noted that, unless otherwise stated, the technical or scientific terms used in the embodiments of this utility model should have the ordinary meaning understood by those skilled in the art to which the embodiments of this utility model pertain.

[0044] In the description of this embodiment of the present invention, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", 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 the embodiments of the present invention 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 the embodiments of the present invention.

[0045] Furthermore, technical terms such as "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. In the description of the embodiments of this utility model, "a plurality of" means two or more, unless otherwise explicitly defined.

[0046] In the description of this embodiment of the invention, unless otherwise explicitly specified and limited, technical terms such as "installation," "connection," "joining," and "fixing" 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. Those skilled in the art can understand the specific meaning of the above terms in this embodiment of the invention according to the specific circumstances.

[0047] In the description of this embodiment of the invention, 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," "over," and "on top" of 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.

[0048] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this 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. These 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, and they should all be covered within the scope of the claims and specification of this utility model. In particular, as long as there is no structural conflict, the various technical features mentioned in the embodiments can be combined in any way. This utility model is not limited to the specific embodiments disclosed herein, but includes all technical solutions falling within the scope of the claims.

Claims

1. An electronic device protective case, characterized by, The electronic device protective case comprises a protective case body and at least one key; The protective case body comprises a frame and a bottom plate, the frame and the bottom plate are connected to form a receiving cavity for accommodating an electronic device, and at least one key mounting hole is formed in the frame; The key is located in the key mounting hole, and soft glue is filled between the key and the key mounting hole to fix the key and at least part of the key mounting hole.

2. The electronic device protective case of claim 1, wherein, The key comprises an outer pressing part, a connecting part and an inner pressing part connected in sequence; The connecting part comprises a first connecting groove arranged in the circumferential direction, and the soft glue is partially filled in the first connecting groove to form a fixed connection with the first connecting groove; The outer pressing part at least partially protrudes outward of the key mounting hole, and the inner pressing part at least partially protrudes inward of the key mounting hole.

3. The electronic device protective case of claim 2, wherein, The first connecting groove is provided with a first step portion for increasing the contact area of the soft glue and the connecting part.

4. The electronic device protective case of claim 3, wherein, The first step portion at least comprises a first outer step close to the outer surface of the frame and a first inner step away from the outer surface of the frame; the first inner step and the first outer step form a stepped structure in the vertical direction, and the width of the first outer step in the horizontal direction is greater than the width of the first inner step in the horizontal direction.

5. The electronic device protective case of claim 2, wherein, The outer pressing part comprises at least two pressing positions arranged in the length direction above the connecting part; The area between each pressing position on the connecting part is also provided with a second connecting groove, and the soft glue is partially filled into the second connecting groove to form a fixed connection.

6. The electronic device protective case of claim 2, wherein, The key mounting hole comprises a second step portion arranged in the circumferential direction; the second step portion at least comprises a second inner step away from the outer surface of the frame and a second outer step close to the outer surface of the frame; the second inner step and the second outer step form a stepped structure in the vertical direction, and the width of the second inner step in the horizontal direction is greater than the width of the second outer step in the horizontal direction.

7. The electronic device protective case of any one of claims 1-6, wherein, The key is in a long circular structure, the soft glue is in a ring structure with uniform width, and the key is located in the middle of the soft glue of the ring structure.

8. The electronic device protective case of any one of claims 2-6, wherein, The upper surface of the outer pressing part is a curved surface; the side surface of the outer pressing part is a slope structure, and the width of the slope structure gradually increases from one end away from the connecting part to one end close to the connecting part.

9. The electronic device protective case of any one of claims 2-6, wherein, The lower surface of the inner pressing part is used to contact the key of the electronic device, and the side surface of the inner pressing part is a slope; the width of the side surface of the inner pressing part gradually decreases from one end close to the connecting part to one end away from the connecting part.

10. The electronic device protective case of claim 1, wherein, The material of the key is any one of PC, TPU and metal; and the material of the soft glue is one of TPU, TPE or silicone.