Waterproof electronic equipment protective shell

By setting sealing grooves and sealing protrusions at the connection points of the back panel, middle frame, and outer frame of the electronic device protective case, combined with a waterproof membrane, a multi-layer sealing structure is formed, which solves the problem of insufficient waterproof performance in the existing technology and achieves an all-round waterproof protection effect.

CN223745034UActive Publication Date: 2025-12-30SHENZHEN KANGCHENGTAI INDUSTRIAL CO LTD
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Patent Information

Application Number
CN202520041943.2
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-01-08
Publication Date
2025-12-30
Estimated Expiration
2035-01-08

AI Technical Summary

Technical Problem

Existing electronic device housings are insufficient in terms of waterproofing performance, making it difficult to meet users' stringent requirements in complex environments.

Method used

A waterproof protective case for electronic devices was designed. By setting sealing grooves and sealing protrusions at the joints of the back panel, middle frame and outer frame, combined with a waterproof membrane, a multi-layer sealing structure is formed to ensure that moisture cannot enter the device.

Benefits of technology

It provides comprehensive waterproof protection, effectively preventing moisture from entering the equipment and ensuring its normal use and lifespan.

✦ Generated by Eureka AI based on patent content.

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Abstract

A waterproof electronic equipment shell comprises a back plate, a middle frame, an outer frame and a waterproof film, a clamping turned edge of the middle frame is inserted into a buckling groove of the back plate, and an electronic equipment containing space is defined by the back plate and a protection wall of the middle frame; the clamping bulge of the outer frame is inserted into the buckling groove and is tightly pressed on the clamping curled edge of the middle frame; the clamping curled edge of the middle frame is limited between the buckling groove of the back plate and the clamping bulge of the outer frame; and the surrounding flange of the outer frame is tightly pressed on the upper surface of the waterproof film. Omnibearing waterproof protection can be provided for the electronic equipment. No matter in a daily humid environment or under the condition that the electronic equipment is accidentally contacted with water, such as rainwater wetting and water splashing, water is difficult to enter the electronic equipment through each connecting part and a gap of the shell, so that electronic elements of the electronic equipment are effectively protected from being damaged by water, and the normal use and the service life of the electronic equipment are ensured.
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Description

Technical Field

[0001] This utility model relates to the technical field of peripheral accessories for electronic devices, and in particular to a waterproof protective case for electronic devices. Background Technology

[0002] With the widespread use of electronic devices (such as mobile phones and tablets), people's demands for their use in various environments are increasing. In humid and watery environments, electronic devices are easily damaged by water corrosion, making waterproof protection a crucial issue. While existing electronic device cases can provide some physical protection, their waterproof performance is insufficient and cannot meet users' stringent requirements for waterproofing electronic devices in complex environments. This invention aims to provide an electronic device case with excellent waterproof performance to solve the above problems. Utility Model Content

[0003] The purpose of this invention is to provide a waterproof protective case for electronic devices to meet users' stringent requirements for waterproofing electronic devices in complex environments.

[0004] This utility model provides a waterproof protective case for electronic devices, comprising:

[0005] A back panel, wherein the edge of the back panel has a fastening groove that surrounds the back panel;

[0006] The middle frame includes a vertically arranged protective wall and a snap-fit ​​rolled edge disposed at the bottom of the protective wall;

[0007] The outer frame has a snap-fit ​​protrusion at the bottom and a surrounding flange at the top;

[0008] A waterproof membrane for use in conjunction with the screen of an electronic device;

[0009] The snap-fit ​​rolled edge of the middle frame is inserted into the snap-fit ​​groove of the back plate, and the back plate and the protective wall of the middle frame enclose the electronic device housing space; the snap-fit ​​protrusion of the outer frame is inserted into the snap-fit ​​groove and pressed tightly against the snap-fit ​​rolled edge of the middle frame, and the snap-fit ​​rolled edge of the middle frame is limited between the snap-fit ​​groove of the back plate and the snap-fit ​​protrusion of the outer frame; the surrounding flange of the outer frame is pressed tightly against the upper surface of the waterproof membrane.

[0010] Furthermore, a first sealing groove is provided at the bottom of the fastening groove, and a corresponding first sealing protrusion is provided on the snap-fit ​​edge of the middle frame, the first sealing protrusion being engaged in the first sealing groove.

[0011] Furthermore, the side wall of the fastening groove is also provided with a second sealing groove, and the snap-fit ​​rolled edge of the middle frame is provided with a corresponding second sealing protrusion, which is engaged in the second sealing groove.

[0012] Furthermore, the edge of the fastening groove is also formed with a fastening rolled edge extending into the groove, the bottom of the fastening rolled edge abutting against the locking rolled edge, and the edge of the fastening rolled edge abutting against the side of the locking protrusion.

[0013] Furthermore, a button protective sleeve protruding outward is formed on the protective wall of the middle frame, the button protective sleeve is sealed to the protective wall, and the outer frame is provided with button holes corresponding to the button protective sleeve.

[0014] Furthermore, the inner wall of the protective wall of the middle frame is provided with multiple abutment protrusions.

[0015] Furthermore, a camera protection frame is also formed on the back panel, and a protective lens is embedded in the camera protection frame.

[0016] Furthermore, it also includes a charging port plug, the outer frame is provided with a first charging clearance hole, the middle frame is provided with a second charging clearance hole corresponding to the first charging clearance hole, and the charging port plug is detachably connected to the charging port clearance hole on the outer frame.

[0017] Furthermore, the outer frame is also provided with a touch key hole, and a touch strip that can be electrically connected to the side touch button of the electronic device is provided inside the touch key hole.

[0018] Furthermore, the outer frame is also provided with speaker clearance holes and microphone clearance holes.

[0019] The waterproof electronic device housing of this application provides comprehensive waterproof protection for electronic devices. Whether in everyday humid environments or in cases of accidental water contact, such as rain or splashes, moisture is unlikely to penetrate the electronic device through the various joints and gaps of the housing, thus effectively protecting the electronic components from water damage and ensuring the normal use and lifespan of the electronic device. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments of this utility model will be briefly introduced below. The drawings described below are only for some embodiments. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 An exploded structural diagram of a waterproof electronic device protective case according to an embodiment of this application is shown;

[0022] Figure 2 A partially enlarged view of the locking groove of the waterproof electronic device protective case according to an embodiment of this application is shown.

[0023] Figure label:

[0024] 1-Back panel; 11-Snap-fit ​​groove; 111-First sealing groove; 112-Second sealing groove; 113-Snap-fit ​​rolled edge; 2-Middle frame; 21-Protective wall; 22-Snap-fit ​​rolled edge; 23-Button protective sleeve; 24-Abutting protrusion; 25-Second charging clearance hole; 3-Outer frame; 31-Snap-fit ​​protrusion; 32-Wrap-around flange; 33-Button hole; 34-First charging clearance hole; 35-Touch key hole; 36-Touch strip; 4-Waterproof membrane; 5-Charging port plug; 6-Waterproof adhesive film. Detailed Implementation

[0025] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.

[0026] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", 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, and are not intended to 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.

[0027] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.

[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., 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 according to the specific circumstances.

[0029] In this invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can include direct contact between the first and second features, or contact between the first and second features through another feature between them. Furthermore, "above," "over," and "on top" of the second feature includes the first feature directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature includes the first feature directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0030] Furthermore, the technical solutions of the various embodiments can be combined with each other, but only if they are based on the ability of those skilled in the art to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be considered that such combination of technical solutions does not exist and is not within the scope of this utility model.

[0031] In the following description, suffixes such as "module," "part," "component," or "unit" are used only for the purpose of describing this utility model and have no specific meaning in themselves. Therefore, they can be used in combination.

[0032] The present invention will now be described in further detail with reference to the accompanying drawings and specific embodiments.

[0033] According to one embodiment of the present invention, such as Figure 1 and Figure 2 As shown, a waterproof electronic device protective case includes:

[0034] Back plate 1, the edge of which is formed with a fastening groove 11 around the back plate 1;

[0035] The middle frame 2 includes a vertically arranged protective wall 21 and a snap-fit ​​rolled edge 22 disposed at the bottom of the protective wall 21;

[0036] The outer frame 3 has a snap-fit ​​protrusion 31 at the bottom and a surrounding flange 32 at the top;

[0037] Waterproof membrane 4, which is used to be combined with the screen of electronic device;

[0038] The snap-fit ​​rolled edge 22 of the middle frame 2 is inserted into the snap-fit ​​groove 11 of the back plate 1, and the back plate 1 and the protective wall 21 of the middle frame 2 enclose each other to form an electronic device housing space; the snap-fit ​​protrusion 31 of the outer frame 3 is inserted into the snap-fit ​​groove 11 and pressed tightly against the snap-fit ​​rolled edge 22 of the middle frame 2, and the snap-fit ​​rolled edge 22 of the middle frame 2 is limited between the snap-fit ​​groove 11 of the back plate 1 and the snap-fit ​​protrusion 31 of the outer frame 3; the surrounding flange 32 of the outer frame 3 is pressed tightly against the upper surface of the waterproof membrane 4.

[0039] In this embodiment, a fastening groove 11 is formed around the edge of the back panel 1. This fastening groove 11 is one of the key structures for connecting with the middle frame 2 and the outer frame 3, providing a basis for subsequent assembly and waterproof sealing. In addition, various functional structures can be formed on the back panel 1 according to the specific configuration of the electronic device. For example, a camera protection frame is formed on the back panel 1, and a protective lens is embedded in the camera protection frame to protect the camera of the electronic device from impact and water corrosion.

[0040] The middle frame 2 includes a vertically arranged protective wall 21 and a snap-fit ​​rolled edge 22 located at the bottom of the protective wall 21. The snap-fit ​​rolled edge 22 of the middle frame 2 is inserted into the snap-fit ​​groove 11 of the back plate 1, and together with the back plate 1, they enclose the electronic device housing space, serving to protect the main body of the electronic device. Meanwhile, the protective wall 21 of the middle frame 2 can also be provided with various functional components, such as an outwardly protruding button protective sleeve 23 formed on the protective wall 21. The button protective sleeve 23 is sealed to the protective wall 21 to protect the buttons of the electronic device. Furthermore, the outer frame 3 is provided with touch key holes 35 corresponding to the button protective sleeve 23. Touch key holes 35 contain touch strips 36 that can be electrically connected to the side touch buttons of the electronic device, allowing users to operate the touch buttons of the electronic device. In addition, the inner wall of the protective wall 21 of the middle frame 2 is provided with multiple abutting protrusions 24. These abutting protrusions 24 can keep the electronic device stable within the housing, reducing shaking and friction.

[0041] The outer frame 3 has a snap-fit ​​protrusion 31 at the bottom and a surrounding flange 32 at the top. The snap-fit ​​protrusion 31 of the outer frame 3 is inserted into the snap-fit ​​groove 11 of the back panel 1 and pressed tightly against the snap-fit ​​rolled edge 22 of the middle frame 2, thus confining the snap-fit ​​rolled edge 22 of the middle frame 2 between the snap-fit ​​groove 11 of the back panel 1 and the snap-fit ​​protrusion 31 of the outer frame 3, achieving a tight connection and waterproof seal. The surrounding flange 32 of the outer frame 3 is pressed tightly against the upper surface of the waterproof membrane 4 to ensure the waterproof effect of the screen part of the electronic device. The outer frame 3 is also provided with corresponding clearance holes according to the interface and functional components of the electronic device, such as the first charging clearance hole 34, the speaker clearance hole, and the microphone clearance hole, to ensure the normal use of the electronic device; the outer frame 3 is also provided with a touch key hole 35, and a touch strip 36 that can be electrically connected to the side touch button of the electronic device is provided in the touch key hole 35, so as to facilitate the user to operate the electronic device through the touch strip 36. Additionally, it is equipped with a charging port plug 5, which can be detachably connected to the charging port clearance hole on the outer frame 3 to further enhance the waterproof performance of the charging port area.

[0042] The waterproof membrane 4 is used to bond with the screen of electronic devices to prevent moisture from entering the electronic devices from the gap between the screen and the casing. It works in conjunction with the surrounding flange 32 of the outer frame 3 to form an effective waterproof barrier for the screen.

[0043] To further improve the waterproof performance of the waterproof electronic device housing, the present invention incorporates a sealing structure at the connection points of various components.

[0044] A first sealing groove 111 is also provided at the bottom of the fastening groove 11, and a corresponding first sealing protrusion is provided on the snap-fit ​​rolled edge 22 of the middle frame 2. The first sealing protrusion is engaged in the first sealing groove 111. Through this concave-convex fit structure, the sealing performance of the bottom connection between the back plate 1 and the middle frame 2 is enhanced, effectively preventing moisture from entering from the bottom gap.

[0045] The side wall of the snap-fit ​​groove 11 is also provided with a second sealing groove 112, and the snap-fit ​​rolled edge 22 of the middle frame 2 is provided with a corresponding second sealing protrusion. The second sealing protrusion is engaged in the second sealing groove 112, thus forming a good seal on the side, preventing water from seeping in from the side, and further improving the overall waterproof performance.

[0046] The edge of the fastening groove 11 also forms a fastening rolled edge 113 extending into the groove. The bottom of the fastening rolled edge 113 abuts against the snap-fit ​​rolled edge 22, and the edge of the fastening rolled edge 113 abuts against the side of the snap-fit ​​protrusion 31. This multi-layered abutment structure not only enhances the stability of the connection, but also blocks the intrusion path of water to a certain extent, thus improving the waterproof effect.

[0047] The waterproof electronic device protective case of this embodiment can completely enclose the electronic device. Its assembly process is as follows:

[0048] First, assemble the middle frame 2 and the outer frame 3, and insert the snap-fit ​​protrusion 31 of the outer frame 3 into the snap-fit ​​rolled edge 33 of the middle frame to strengthen the middle frame 2.

[0049] Next, the waterproof membrane 4 is inserted into the outer frame 3, so that the waterproof membrane 4 is combined with the surrounding flange 32;

[0050] Afterwards, the electronic device screen can be placed into the electronic device housing space formed by the middle frame 2 and the outer frame 3 with the waterproof membrane 4 facing it, so that it contacts the abutting protrusion 24 on the inner wall of the protective wall 21 of the middle frame 2 and remains stable.

[0051] Next, the assembled outer frame 3 and middle frame 2 are combined with the back plate 11, so that the snap-fit ​​protrusion 31 of the outer frame 3 and the snap-fit ​​rolled edge 22 of the middle frame 2 are inserted into the snap-fit ​​groove 11 of the back plate 1. At this time, the first sealing protrusion on the snap-fit ​​rolled edge 22 is pressed tightly into the first sealing groove 111 in the snap-fit ​​groove 11, and the second sealing protrusion 112 is pressed tightly into the second sealing groove 112. The edge of the snap-fit ​​rolled edge 113 formed by the snap-fit ​​groove 11 abuts against the side of the snap-fit ​​protrusion 31.

[0052] Finally, according to the usage requirements of the electronic device, the charging port plug 5 is installed on the outer frame 3 to block the first charging clearance hole 34 and the second charging clearance hole 25, and to ensure that other clearance holes, such as speaker clearance holes and microphone clearance holes, correspond to the corresponding parts of the electronic device, thus completing the assembly of the entire waterproof electronic device shell.

[0053] Furthermore, the waterproof effect can be further improved by applying a waterproof film 6 to the speaker avoidance hole, microphone avoidance hole and the outer surface of the touch strip 36.

[0054] The waterproof electronic device housing of this embodiment provides comprehensive waterproof protection for electronic devices. Whether in everyday humid environments or in cases of accidental water contact, such as rain or splashes, moisture is unlikely to penetrate the electronic device through the housing's joints and gaps. This effectively protects the electronic components from water damage, ensuring the normal operation and lifespan of the electronic device.

[0055] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "one example," "some embodiments," "an example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of this utility model. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

Claims

1. A waterproof electronic device protective case, characterized by, The utility model relates to a waterproof frame for electronic device, which comprises: a back plate, the back plate edge is formed with the buckle groove around the back plate; a middle frame, the middle frame includes the protection wall arranged vertically and the snap -on edge arranged at the bottom of the protection wall; an outer frame, the outer frame bottom is formed with the snap -on convex, and the top is formed with the surrounding flange; a waterproof film, the waterproof film is used to combine with the screen of the electronic device; the snap -on edge of the middle frame is inserted into the buckle groove of the back plate, the back plate and the protection wall of the middle frame are enclosed to form the electronic device containing space, the snap -on convex of the outer frame is inserted into the buckle groove and is pressed on the snap -on edge of the middle frame, the snap -on edge of the middle frame is limited between the buckle groove of the back plate and the snap -on convex of the outer frame, and the surrounding flange of the outer frame is pressed on the upper surface of the waterproof film.

2. The waterproof electronics protection case of claim 1, wherein, The bottom of the buckle groove is further provided with a first sealing groove, and the snap -on edge of the middle frame is provided with a corresponding first sealing convex, which is combined in the first sealing groove.

3. The waterproof electronics protection case of claim 2, wherein, The side wall of the buckle groove is further provided with a second sealing groove, and the snap -on edge of the middle frame is provided with a corresponding second sealing convex, which is combined in the second sealing groove.

4. The waterproof electronics protection case of claim 1, wherein, The edge of the buckle groove is further formed with the buckle edge extending into the groove, the bottom of the buckle edge abuts against the snap -on edge, and the edge of the buckle edge abuts against the side surface of the snap -on convex.

5. The waterproof electronics protection case of claim 4, wherein, The protection wall of the middle frame is further formed with the key protection sleeve outwardly protruding, the key protection sleeve is sealingly connected with the protection wall, and the outer frame is provided with a key hole corresponding to the key protection sleeve.

6. The waterproof electronics protection case of claim 4, wherein, The inner wall of the protection wall of the middle frame is provided with a plurality of abutting convexes.

7. The waterproof electronics protection case of claim 1, wherein, The back plate is further formed with a camera protection frame, and the camera protection frame is embedded with a protection lens.

8. The waterproof electronic device protective case of claim 1, wherein, Further comprising a charging port plug, the outer frame and the first charging avoiding hole are opened, the second charging avoiding hole corresponding to the first charging avoiding hole is arranged on the middle frame, and the charging port plug is detachably connected in the charging port avoiding hole on the outer frame.

9. The waterproof electronics protection case of claim 1, wherein, The outer frame is further provided with a touch key hole, and the touch key hole is provided with a touch strip capable of being electrically connected with the side touch key of the electronic device.

10. The waterproof electronics protection case of claim 1, wherein, The outer frame is further provided with a loudspeaker avoiding hole and a microphone avoiding hole.