Electronic equipment protective shell

By using a detachable frame and base plate structure and elastic component design, the problem of having to replace the entire case when the frame is damaged is solved. This allows for a replaceable frame, reducing costs, enhancing drop protection, and meeting diverse usage needs.

CN224233956UActive Publication Date: 2026-05-12曾立
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
曾立
Filing Date
2025-05-09
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

When the frame of a traditional electronic device protective case is damaged, the entire case needs to be replaced, resulting in high costs and material waste. The drop protection effect depends on the softness of the material, and the drop protection performance is limited.

Method used

The design features a detachable frame and base plate structure. The frame is equipped with elastic elements, which enhance the drop protection effect through deformation buffering. The frame can be detached by connecting screws or protrusions and concave holes. The frame and base plate are processed separately to reduce costs.

Benefits of technology

It features replaceable frames, reducing replacement costs, simplifying the manufacturing process, enhancing drop resistance, meeting diverse user needs, and possessing comprehensive practicality in terms of versatility, durability, and drop resistance.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to an electronic equipment protective shell, which comprises a bottom plate and a frame which are detachably connected, the frame and the bottom plate are enclosed to form a mounting cavity, and the mounting cavity is used for accommodating and positioning an electronic product. The elastic pieces are fixed on the frame and protrude out of the outer side wall, the inner side wall and the top wall of the frame at the same time, and the anti-falling effect of the electronic equipment protection shell is enhanced through deformation buffering of the elastic pieces. As the bottom plate and the frame in the electronic equipment protective shell are detachably connected, when the frame is broken, a new frame can be replaced for continuous use, and the electronic equipment protective shell is convenient and practical.
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Description

Technical Field

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

[0002] Currently, electronic device protective cases on the market are categorized by material, including PC shells, leather, silicone, cloth, hard plastic, leather cases, tempered glass metal shells, soft plastic, velvet, and silk. The primary purpose of these types of cases is to protect electronic devices from drops. Most electronic device protective cases are integrally injection molded, protecting the device by encasing it. However, the protective effect of these cases often relies solely on the flexibility of the material itself to achieve a drop-proof effect, resulting in generally limited drop protection. The drop-proof performance depends entirely on the softness of the main material, and the entire protective case needs to be replaced if the frame is damaged. Utility Model Content

[0003] The present invention provides a protective case for electronic devices to solve the technical problem that the entire protective case needs to be replaced after the frame of a traditional electronic device is damaged.

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

[0005] Base plate;

[0006] A frame is detachably connected to the base plate, and the frame and the base plate enclose a mounting cavity for accommodating and positioning electronic products;

[0007] An elastic element is fixed to the frame, and the elastic element protrudes simultaneously from the outer side wall, the inner side wall, and the top wall of the frame.

[0008] In one embodiment, the base plate is provided with a stepped groove, and a hanging platform extends from the side of the frame near the bottom wall of the mounting cavity. The hanging platform overlaps the stepped groove and is detachable from the bottom wall of the stepped groove.

[0009] In one embodiment, the electronic device protective housing includes screws that pass sequentially through the mounting platform and the bottom wall of the stepped groove.

[0010] In one embodiment, the screw's axial direction is parallel to the depth direction of the mounting cavity, the stepped groove is formed in the bottom wall of the mounting cavity, the base plate has a groove on the side opposite to the stepped groove, and the head of the screw protrudes from the bottom wall of the groove; the electronic device protective housing also includes a protective pad that covers the opening of the groove.

[0011] In one embodiment, a blocking block is provided at one end of the frame near the mounting cavity. The blocking block is connected to the mounting platform and extends in the direction away from the depth of the mounting cavity. The blocking block abuts against the outer wall of the stepped groove.

[0012] In one embodiment, the mounting bracket does not protrude beyond the bottom wall of the mounting cavity within the stepped groove along the depth direction of the mounting cavity.

[0013] In one embodiment, the screw's axial direction is parallel to the depth direction of the mounting cavity, the stepped groove is formed on the back of the base plate, the mounting bracket has a groove on the side opposite to the stepped groove, and the head of the screw protrudes from the bottom wall of the groove; the electronic device protective housing also includes a protective pad that covers the opening of the groove.

[0014] In one embodiment, the frame includes four corner frames, which are spaced apart at the four corners of the base plate. There are four hanging platforms, and the extension arc of the hanging platforms matches the arc of the corner frames. There are two screws at each corner frame position, and the two screws are symmetrically arranged with respect to the angle bisector of the corner frame.

[0015] In one embodiment, one of the hanging platform and the bottom wall of the stepped groove is provided with a protruding post and the other with a concave hole, and the protruding post is inserted into the concave hole.

[0016] In one embodiment, the frame has a perforation and a notch at its end, the perforation and the notch being spaced apart along the depth direction of the mounting cavity; the elastic member is mounted on the inner wall of the mounting cavity, and the side of the elastic member facing away from the mounting cavity has a first protrusion and a second protrusion spaced apart, the first protrusion passing through the perforation and exposed on the outer wall of the frame, the second protrusion passing through the notch and exposed on both the outer wall and the top wall of the frame; the second protrusion extends radially inward along the mounting cavity, and the electronic product can be clamped between the second protrusion and the bottom wall of the mounting cavity, the outer wall surface of the second protrusion has a guide surface, the guide surface extending along the depth direction of the mounting cavity, and the sidewall of the electronic product can move along the guide surface until the electronic product enters the mounting cavity.

[0017] In one embodiment, the elastic element is an airbag.

[0018] As can be seen from the above technical solution, the embodiments of this utility model have at least the following advantages and positive effects:

[0019] This utility model provides a protective case for electronic devices. Firstly, because the base plate and frame are detachably connected, a new frame can be replaced if the frame is damaged, making it more economical than replacing the entire protective case. Secondly, the frame and base plate are manufactured separately, simplifying the process. The materials for the frame and base plate can be the same or different, reducing manufacturing costs. Furthermore, the frame and base plate can be freely combined to meet various user needs. Thirdly, an elastic element is fixed to the frame, protruding from the outer, inner, and top walls of the frame. The deformation of the elastic element cushions the impact, enhancing the drop protection of the electronic device protective case. Therefore, the electronic device protective case provided by this application combines versatility, durability, and drop protection, making it highly practical. Attached Figure Description

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

[0021] Figure 1 This is a schematic diagram of the overall structure of an electronic device protective case according to an embodiment of this application;

[0022] Figure 2 for Figure 1 A magnified schematic diagram of a corner of the protective casing of the electronic device shown.

[0023] Figure 3 for Figure 2 Another perspective view of the enlarged partial structural schematic diagram shown;

[0024] Figure 4 for Figure 2 The enlarged view shown is a schematic diagram of the exploded structure.

[0025] Figure 5 for Figure 4 Another view of the base plate in the exploded view shown.

[0026] The annotations in the attached figures are explained as follows:

[0027] 1. Protective casing for electronic devices; 2. Mounting cavity;

[0028] 10. Base plate; 11. Step groove; 12. Protruding column; 13. Groove; 20. Frame; 201. Corner frame; 21. Hanging platform; 22. Recessed hole; 23. Blocking block; 24. Perforation; 25. Notch; 30. Elastic element; 31. First protrusion; 32. Second protrusion; 33. Guide surface; 40. Screw; 50. Protective pad. Detailed Implementation

[0029] Typical embodiments embodying the features and advantages of this utility model will be described in detail in the following description. It should be understood that this utility model can have various variations in different embodiments, all of which do not depart from the scope of this utility model, and the descriptions and illustrations therein are for illustrative purposes only and not intended to limit this utility model.

[0030] 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 the stated features. In the description of this application, "a plurality of" means two or more, unless otherwise explicitly specified.

[0031] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installation," "setup," and "connection" 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 application based on the specific circumstances.

[0032] Reference Figure 1 and Figure 2 This application provides a novel protective case 1 for electronic devices, comprising a base plate 10, a frame 20, and an elastic element 30. The base plate 10 is attached to the back of the electronic product, and the frame 20 is attached to the side periphery of the electronic product. The frame 20 is detachably connected to the base plate 10, and the two together form a mounting cavity 2 for accommodating and positioning the electronic product. The elastic element 30 is fixed to the frame 20 and protrudes from the outer side wall, inner side wall, and top wall of the frame 20. When the protective case 1 is subjected to an external impact, the elastic element 30 contacts the external object and acts as a buffer through its elastic deformation, providing drop protection for the protective case 1 and further protecting the electronic device installed inside the protective case 1. It should be understood that, firstly, the electronic device here includes, but is not limited to, mobile phones, tablets, learning machines, and other electronic products; secondly, the frame 20 can be detachably connected to the base plate 10 by means of fasteners, threaded connections, sliding installation, etc.

[0033] The electronic device protective case 1 provided in this application has several advantages. First, since the base plate 10 and the frame 20 are detachably connected, if the frame 20 is damaged, it can be replaced with a new one for continued use, which is more convenient and cost-effective than replacing the entire electronic device protective case 1. Second, regarding the manufacturing process of the entire electronic device protective case 1, the base plate 10 and the frame 20 are manufactured separately, simplifying the manufacturing process. The materials of the base plate 10 and the frame 20 can be the same or different. Since the frame 20 generally uses much less material than the base plate 10, this can greatly reduce manufacturing costs compared to one-piece molding. Moreover, the base plate 10 and the frame 20 can be freely combined and assembled to meet more user needs. Third, an elastic element 30 is fixed on the frame 20. The elastic element 30 protrudes from the outer side wall, inner side wall, and top wall of the frame 20, and the deformation cushioning of the elastic element 30 enhances the drop protection effect of the electronic device protective case 1. Therefore, the electronic device protective case 1 provided in this application combines versatility, durability, and drop protection, making it highly practical.

[0034] Preferably, in conjunction with reference Figure 3 and Figure 4 In one embodiment, the base plate 10 is provided with a stepped groove 11, and a mounting platform 21 extends from the side of the frame 20 near the bottom wall of the mounting cavity 2. The mounting platform 21 overlaps the stepped groove 11 and is detachably attached to the bottom wall of the stepped groove 11, so that the frame 20 is detachably connected to the base plate 10. It should be noted that the mounting platform 21 and the stepped groove 11 cooperate to serve as an assembly positioning function and to increase the assembly compactness between the frame 20 and the base plate 10. In other embodiments, the mounting platform 21 and the stepped groove 11 may not be provided. In this case, manual alignment is required to install the frame 20 on the base plate 10. Optionally, the mounting platform 21 and the bottom wall of the stepped groove 11 extend in the same direction. They may extend along the radial direction of the mounting cavity 2, along the depth direction of the mounting cavity 2, or along a direction inclined to the depth direction of the mounting cavity 2.

[0035] Optionally, in this embodiment, in conjunction with reference to Figure 3 and Figure 4 The electronic device protective housing 1 includes screws 40, which are threaded through the mounting platform 21 and the bottom wall of the stepped groove 11 in sequence, so that the mounting platform 21 is threadedly connected to the bottom wall of the stepped groove 11 by the screws 40. Here, the axial direction of the screws 40 is not limited, as long as the screws 40 can pass through the bottom wall of the mounting platform 21 and the stepped groove 11 in sequence.

[0036] Alternatively, in one embodiment, in conjunction with reference to Figure 3 and Figure 4The mounting platform 21 and the bottom wall of the stepped groove 11 each have a protruding post 12 and a recessed hole 22. The protruding post 12 is aligned and inserted into the recessed hole 22, allowing the mounting platform 21 to be detachably connected to the bottom wall of the stepped groove 11 through the engagement of the protruding post 12 and the recessed hole 22. Here, the axial direction of the protruding post 12 is not limited, as long as it can be aligned and inserted into the recessed hole 22.

[0037] It should be noted that threaded connection or the alignment and insertion of the protrusion 12 and the groove 13 are specific ways to achieve detachable connection. In other embodiments, screws 40 and protrusion 12 and groove 22 are not required, and other detachable connection methods such as sliding installation are also used.

[0038] Preferably, in one embodiment, in conjunction with reference to Figure 3-5 The axial direction of screw 40 is parallel to the depth direction of mounting cavity 2. The bottom wall extension direction of mounting platform 21 and stepped groove 11 is parallel to the radial direction of mounting cavity 2. Stepped groove 11 is formed on the bottom wall of mounting cavity 2. At this time, mounting platform 21 overlaps with stepped groove 11 and is located inside mounting cavity 2. Figure 5 The diagram illustrates that the base plate 10 has a groove 13 on the side opposite to the stepped groove 11. The head of the screw 40 protrudes from the bottom wall of the groove 13. The electronic device protective shell 1 includes a protective pad 50, which covers the opening of the groove 13, protecting the exposed head of the screw 40 (protecting the slotted or Phillips head end face), and providing waterproofing and rust prevention. Here, the screw 40 is threaded from the outside to the inside along the depth direction of the mounting cavity 2, and the axial direction of the screw 40 is parallel to the depth direction of the mounting cavity 2. This design does not require a high thickness of the base plate 10, making the entire electronic device protective shell 1 thinner and lighter. In addition, the design of the groove 13 is to increase the structural compactness of the entire electronic device protective shell 1. It should be noted that, without considering the thickness of the base plate 10 and the frame 20, the axial direction of the screw 40 can also be designed to be parallel to the radial direction of the mounting cavity 2. Therefore, in this application, the axial direction of the screw 40 is not limited; the exposed position of the screw head is not limited; whether the groove 13 is provided or not is not limited; and whether the protective pad 50 is provided or not is not limited.

[0039] Preferably, in one embodiment, in conjunction with reference to Figure 3 and Figure 4 A blocking block 23 is provided on the side of the frame 20 near the mounting cavity 2. The blocking block 23 is connected to the mounting platform 21 and extends along the depth direction away from the mounting cavity 2. The blocking block 23 abuts against the outer wall of the stepped groove 11. The blocking block 23 can play a role in positioning and stabilizing, so that the mounting platform 21 and the stepped groove 11 are stably aligned. It should be noted that in this application, the presence or absence of the blocking block 23 is not limited.

[0040] Preferably, in one embodiment, reference Figure 3 Along the depth direction of the mounting cavity 2, the mounting platform 21 does not protrude from the bottom wall of the mounting cavity 2 within the stepped groove 11. This design ensures that when the electronic product is installed in the mounting cavity 2, the back of the electronic product fits tightly against the bottom wall of the mounting cavity 2, improving the compactness of the electronic product's installation and fixation. It should be noted that, without considering the stability of the electronic product's installation and fixation, whether the mounting platform 21 protrudes from the bottom wall of the mounting cavity 2 is not limited.

[0041] Alternatively, in another embodiment (not shown), the axial direction of the screw 40 is parallel to the depth direction of the mounting cavity 2, and the bottom wall extension direction of the mounting platform 21 and the stepped groove 11 is parallel to the radial direction of the mounting cavity 2. The stepped groove 11 can be formed on the back side of the base plate 10 (the side facing away from the mounting cavity 2). In this case, the mounting platform 21 overlaps the stepped groove 11 and is located outside the mounting cavity 2. The mounting platform 21 has the aforementioned groove 13 on the side facing away from the stepped groove 11. Similarly, the head of the screw 40 is exposed on the bottom wall of the groove 13. The electronic device protective shell 1 includes a protective pad 50, which covers the opening of the groove 13.

[0042] Preferably, in conjunction with reference Figure 1 , Figure 3 and Figure 4 In one embodiment, the frame 20 includes four independent corner frames 201, which are spaced apart at the four corners of the base plate 10. The number of hanging platforms 21 is four, and the extension arc of the hanging platforms 21 matches the arc of the corner frames 201. Figure 3 and Figure 4 The diagram illustrates that each corner frame 201 has two screws 40, symmetrically arranged with respect to the angle bisector of the corner frame 201. Similarly, each corner frame 201 has two protrusions 12, also symmetrically arranged with respect to the angle bisector of the corner frame 201. The symmetrical arrangement of the screws 40 and protrusions 12 improves the assembly stability of the corner frames 201. Here, the four corner frames 201 are used to engage and position the electronic product, ensuring assembly stability while reducing the overall weight of the electronic device protective case 1, thus lowering production costs. Reducing the contact area between the electronic device protective case 1 and the electronic product also improves the heat dissipation of the electronic product. It should be noted that in other embodiments, the arrangement of the frame 20 is not limited, nor is the number of screws 40 and protrusions 12.

[0043] Preferably, in one embodiment, in conjunction with reference to Figure 2-4The frame 20 has a through hole 24 and a notch 25 at its end. The through hole 24 and the notch 25 are spaced apart along the depth direction of the mounting cavity 2. An elastic member 30 is installed on the inner side wall of the mounting cavity 2. The elastic member 30 can apply a radial abutment force to the electronic product to improve the stability of the electronic product being housed and positioned in the mounting cavity 2. On the side of the elastic member 30 facing away from the mounting cavity 2, there are spaced first protrusions 31 and second protrusions 32. The first protrusion 31 is adapted to pass through the through hole 24 and is exposed on the outer side wall of the frame 20. The second protrusion 32 is adapted to pass through the notch 25 and is exposed on both the outer side wall and the top wall (top) of the frame 20. The first protrusion 31 and the second protrusion 32 exposed on the frame 20 provide drop and shock protection for the electronic device protective case 1 and the electronic product installed in the electronic device protective case 1. Here, the elastic element 30 is detachably installed on the frame 20. Optionally, in this application, the elastic element 30 includes, but is not limited to, elastic materials with deformation memory such as airbags, rubber, and silicone. It should be noted that in other implementations, the perforation 24 and the notch 25 may not be provided, and the elastic element 30 may not have the first protrusion 31 and the second protrusion 32. The elastic element 30 is provided with a U-shaped groove, which can be fastened to the top edge of the frame 20. The elastic element 30 covering the outer wall surface of the frame 20 can achieve the same anti-drop and shock-absorbing effect. In another embodiment, the elastic element 30 may also be adhered to the outer wall surface of the frame 20.

[0044] Further, refer to Figure 3 The second protrusion 32 extends radially inward along the mounting cavity 2, allowing the electronic product to be clamped between the second protrusion 32 and the bottom wall of the mounting cavity 2. Furthermore, the outer wall of the second protrusion 32 is provided with a guide surface 33, which extends along the depth direction of the mounting cavity 2, allowing the sidewall of the electronic product to move along the guide surface 33 into the mounting cavity 2. It should be noted that in this application, the state of the second protrusion 32 and the presence or absence of the guide surface 33 are not limited. Therefore, the elastic element 30 itself serves both as a drop protection function and as a fixation function for the electronic product.

[0045] Although the present invention has been described with reference to several typical embodiments, it should be understood that the terminology used is descriptive and exemplary, and not restrictive. Since the present invention can be embodied in many forms without departing from the spirit or essence of the invention, it should be understood that the above embodiments are not limited to any of the foregoing details, but should be interpreted broadly within the spirit and scope defined by the appended claims. Therefore, all variations and modifications falling within the scope of the claims or their equivalents should be covered by the appended claims.

Claims

1. A protective case for an electronic device, characterized in that, include: Base plate; A frame is detachably connected to the base plate, and the frame and the base plate enclose a mounting cavity for accommodating and positioning electronic products; An elastic element is fixed to the frame, and the elastic element protrudes simultaneously from the outer side wall, the inner side wall, and the top wall of the frame.

2. The electronic device protective case according to claim 1, characterized in that, The base plate is provided with a stepped groove, and a hanging platform extends from the side of the frame near the bottom wall of the mounting cavity. The hanging platform overlaps the stepped groove and is detachable from the bottom wall of the stepped groove.

3. The electronic device protective case according to claim 2, characterized in that, The protective housing for the electronic device includes screws, which are sequentially inserted through the mounting platform and the bottom wall of the stepped groove.

4. The electronic device protective case according to claim 3, characterized in that, The screw's axial direction is parallel to the depth direction of the mounting cavity. The stepped groove is formed on the bottom wall of the mounting cavity. The base plate has a groove on the side opposite to the stepped groove. The head of the screw protrudes from the bottom wall of the groove. The electronic device protective housing also includes a protective pad that covers the opening of the groove.

5. The electronic device protective case according to claim 4, characterized in that, A blocking block is provided at one end of the frame near the mounting cavity. The blocking block is connected to the mounting platform and extends in the direction away from the depth of the mounting cavity. The blocking block abuts against the outer wall of the stepped groove.

6. The electronic device protective case according to claim 4, characterized in that, Along the depth direction of the mounting cavity, the mounting platform does not protrude from the bottom wall of the mounting cavity within the stepped groove.

7. The electronic device protective case according to claim 3, characterized in that, The screw's axial direction is parallel to the depth direction of the mounting cavity. The stepped groove is formed on the back of the base plate. The mounting bracket has a groove on the side opposite to the stepped groove. The head of the screw protrudes from the bottom wall of the groove. The electronic device protective housing also includes a protective pad that covers the opening of the groove.

8. The electronic device protective case according to claim 3, characterized in that, The frame includes four corner frames, which are spaced apart at the four corners of the base plate. There are four hanging platforms, and the extension arc of the hanging platforms matches the arc of the corner frames. There are two screws at each corner frame position, and the two screws are symmetrically arranged with respect to the angle bisector of the corner frame.

9. The electronic device protective case according to claim 2, characterized in that, The bottom wall of the hanging platform and the stepped groove are provided with a protruding post and a concave hole, respectively, and the protruding post is inserted into the concave hole.

10. The electronic device protective case according to claim 1, characterized in that, The frame has perforations and notches at its ends, with the perforations and notches spaced apart along the depth of the mounting cavity. The elastic element is mounted on the inner wall of the mounting cavity, and the side of the elastic element facing away from the mounting cavity has a first protrusion and a second protrusion spaced apart. The first protrusion passes through the perforations and protrudes from the outer wall of the frame, while the second protrusion passes through the notches and protrudes from both the outer wall and the top wall of the frame. The second protrusion extends radially inward along the mounting cavity, allowing the electronic product to be sandwiched between the second protrusion and the bottom wall of the mounting cavity. The outer wall of the second protrusion has a guide surface extending along the depth of the mounting cavity, allowing the sidewall of the electronic product to move along the guide surface until the electronic product enters the mounting cavity. Alternatively, the elastic element may be an airbag.