A shockproof phone back cover

Abstract

This utility model provides a drop-proof mobile phone back cover, relating to the field of shell structure technology. It includes a back panel and a frame, the back panel and frame being integrally formed from composite materials to create the back cover. The frame has diagonal braces at its four corners, and an inner frame is located between these braces on the inner side of the frame. Several connecting parts are provided between the inner frame and the frame, dividing the shock-absorbing cavity formed between the inner frame and the frame into individual spaces. Each individual space contains a shock-absorbing pad. The diagonal braces at the four corners of the frame form buffer grooves with the frame, housing the built-in buffer pads. These absorb and disperse the impact force during a drop. The metal material does not interfere with signals and has higher strength. Together, they effectively reduce direct impact on the internal components of the mobile phone. Multiple independent shock-absorbing cavities are formed by the connecting parts between the inner frame and the frame, each containing a shock-absorbing pad, forming a single shock-absorbing system to further buffer vibrations and protect the internal structure.

Description

Technical Field

[0001] This utility model relates to the field of shell structure technology, and in particular to a shockproof mobile phone back cover. Background Technology

[0002] Among various mobile phone back cover materials, composite materials (such as PMMA / PC composite materials) have become one of the mainstream choices due to their advantages such as lightweight, cost-effectiveness, processing flexibility and overall performance balance.

[0003] Traditional PMMA / PC composite material phone back covers with a thickness of 0.5-0.64mm can meet the needs of most phone cases. However, when the phone is dropped, the outer shell alone cannot provide effective protection for the internal components. In order to enhance the protective effect, manufacturers tend to increase the thickness of the phone back cover, but this is limited to some extent by cost and weight, and the drop protection effect of the increased thickness is not obvious.

[0004] Therefore, in view of the problem of balancing lightweight, cost-effectiveness and drop resistance in existing mobile phone back covers, the present invention provides a new solution, which aims to fully improve the drop resistance of mobile phone back covers by improving the back cover structure design. Utility Model Content

[0005] The purpose of this invention is to address the shortcomings of existing technologies by adding a drop-proof structure to the existing back cover, thereby blocking vibrations and impacts when the back cover is dropped, and thus effectively protecting the internal components.

[0006] To achieve the above objectives, the present invention adopts the following technical solution:

[0007] A shockproof mobile phone back cover includes a back panel and a frame. The back panel and the frame are integrally formed from composite materials to form the mobile phone back cover. The four corners of the frame are provided with diagonal braces. An inner frame is provided on the inner side of the frame between the diagonal braces. Several connecting parts are provided between the inner frame and the frame. The shock-absorbing cavity formed between the inner frame and the frame is divided into individual spaces by the connecting parts. Each individual space is equipped with a shock-absorbing pad.

[0008] Furthermore, the thickness of the frame is greater than that of the inner frame to form a stepped groove, allowing the mobile phone screen to be built into the frame.

[0009] Furthermore, the thickness of the frame is 0.4mm-0.54mm, and the thickness of the inner frame is 0.1mm-0.24mm.

[0010] Furthermore, a buffer groove is formed between the diagonal brace and the frame, and a buffer pad is installed in the buffer groove.

[0011] Furthermore, the diagonal brace is made of metal, the buffer pad is made of shock-absorbing foam, and the buffer pad is bonded to the buffer groove.

[0012] Furthermore, the back panel, frame, inner frame, and connecting parts are all made of the same material and are integrally formed.

[0013] Furthermore, the shock-absorbing pad is made of shock-absorbing foam material and is bonded inside the shock-absorbing cavity.

[0014] Furthermore, the thickness of the inner frame corresponding to the volume buttons, power button, charging hole, and sound hole of the mobile phone is 0.5mm-0.64mm, and the inner frame is disconnected at the corresponding part.

[0015] Furthermore, the inner frame has an inclined structure corresponding to the part that is disconnected.

[0016] Compared with existing technologies, the shockproof phone back cover of this utility model improves the shock resistance of the phone back cover through the following design, while also taking into account lightweight and cost-effectiveness. The specific advantages are as follows:

[0017] Diagonal bracing and buffer grooves (most phone drops involve angled impacts): Diagonal bracing is installed at the four corners of the frame, forming buffer grooves with the frame. Built-in buffer pads (shock-absorbing foam material) absorb and disperse the impact force during a drop. The metal material will not interfere with the signal and has higher strength. Together, they effectively reduce direct impact on the internal components of the phone.

[0018] Vibration damping chambers and damping pads: Multiple independent vibration damping chambers are formed through the connection between the inner frame and the outer frame. Each chamber is equipped with a damping pad (shock-absorbing foam material), forming a single vibration damping system to further buffer vibrations and protect the internal structure.

[0019] Thickness design: Frame thickness (0.4mm-0.54mm), inner frame (0.1mm-0.24mm). Although the thickness is reduced, the frame strength is still guaranteed. The thickness reduction is used to increase the inner frame design, and a shock-absorbing structure is added. Although it takes up some internal space of the phone, the space occupied is in line with the design standards.

[0020] One-piece molding process: The back panel, frame, inner frame and connecting parts are made of the same composite material and molded in one piece, which reduces the types of materials and processing steps, reduces costs while ensuring structural integrity and improving impact resistance.

[0021] Basic design: In key areas such as volume buttons, power button, charging port, and speaker holes, the inner frame thickness is restored to the traditional value (0.5mm-0.64mm), and a tilted disconnect structure is adopted to allow for conventional openings without increasing the space occupied by these parts inside the phone or affecting the conventional technical layout.

[0022] Multi-level protection mechanism: The multi-level protection system formed by the diagonal support frame, buffer pad, shock absorption cavity and shock absorption pad significantly improves the phone back cover's resistance to drops, vibrations and impacts. Compared with the traditional thickening solution, the protection effect is more significant, and the increase in weight and cost caused by the thickening is avoided.

[0023] Material and process optimization: Lightweight and highly elastic materials such as shock-resistant foam are used, combined with one-piece molding process, to achieve a balance between product lightweighting and cost-effectiveness while ensuring drop resistance.

[0024] In summary, this utility model, through structural innovation, has found a better balance between lightweight, cost-effectiveness, and drop resistance, providing a new solution for mobile phone back cover design. Attached Figure Description

[0025] Figure 1 A schematic diagram of the overall structure of a drop-proof mobile phone back cover provided by this utility model;

[0026] Figure 2 A schematic diagram of the bottom part of a drop-proof mobile phone back cover provided by this utility model;

[0027] Figure 3 An enlarged schematic diagram of the A-structure of a shockproof mobile phone back cover provided by this utility model;

[0028] Figure 4 A schematic diagram of a diagonal support structure for a drop-proof mobile phone back cover provided by this utility model.

[0029] Illustration 1: Back panel;

[0030] 2. Border; 21. Stepped groove;

[0031] 3. Diagonal brace; 31. Buffer groove; 32. Buffer pad;

[0032] 4. Inner frame;

[0033] 5. Connecting parts;

[0034] 6. Vibration damping cavity;

[0035] 7. Shock-absorbing pads. Detailed Implementation

[0036] The technical solutions of the present utility model will be clearly and completely described below with reference to the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0037] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be provided below with reference to relevant embodiments, and several embodiments of this utility model will be given. However, this utility model can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of this utility model more thorough and complete.

[0038] It should be noted that when an element is referred to as being "fixed to" another element, it can be directly on the other element or there may be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "left," "right," and similar expressions used in this document are for illustrative purposes only.

[0039] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention pertains. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the invention. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items. Example 1

[0040] like Figure 1-4 As shown, this utility model provides a technical solution: a drop-proof mobile phone back cover, including a back panel 1 and a frame 2. The back panel 1 and the frame 2 are integrally formed from composite materials to form the mobile phone back cover. Each of the four corners of the frame 2 is provided with a diagonal support 3. The diagonal support 3 is inclined at a certain angle at the corners of the frame 2. When the mobile phone is accidentally dropped, the diagonal support 3 reinforces the corners of the frame 2, increasing its ability to withstand impact. The inner side of the frame 2 is provided with an inner frame 4 between the diagonal support 3. Several connecting parts 5 are provided between the inner frame 4 and the frame 2. The shock-absorbing cavity 6 formed between the inner frame 4 and the frame 2 is divided into individual spaces by the connecting parts 5. Each individual space is equipped with a shock-absorbing pad 7. The shock-absorbing pad 7 has good elasticity and buffering performance. When the mobile phone is hit by an external force, the shock-absorbing pad 7 can absorb and disperse part of the impact force, reduce the energy transmitted to the inside of the mobile phone, and thus protect the internal components of the mobile phone from damage. Example 2

[0041] like Figure 1-4 As shown, the thickness of the frame 2 is greater than that of the inner frame 4, forming a stepped groove 21. This stepped groove 21 is a conventional technical design that allows the frame 2 to house the mobile phone screen, thus protecting the edge of the screen, preventing damage to the screen during collisions, and also increasing the fit between the back cover and the screen.

[0042] The thickness of frame 2 is 0.4mm-0.54mm. This thickness range ensures that frame 2 has sufficient strength to withstand certain external impacts, while also preventing the phone from becoming too thick and heavy, thus affecting the grip.

[0043] The thickness of the inner frame 4 is 0.1mm-0.24mm. The relatively thin inner frame 4 avoids taking up too much space inside the phone, and thus forms a shock-absorbing cavity 6 with the frame 2. The thickness of the shock-absorbing cavity 6 is designed according to the internal space of the phone, and is generally 0.08mm-0.22mm.

[0044] A buffer groove 31 is formed between the diagonal brace 3 and the frame 2. A buffer pad 32 is installed in the buffer groove 31. When the phone is dropped, the buffer groove 31 and the buffer pad 32 can further increase the buffer space, absorb and disperse the impact force, and reduce the risk of damage to the phone.

[0045] Since the diagonal brace 3 is made of metal, which has high strength and hardness, it can effectively resist external impacts.

[0046] Among them, the cushioning pad 32 is made of shock-absorbing foam, which has good elasticity and energy absorption properties, and can further buffer external forces;

[0047] Furthermore, the buffer pad 32 is bonded to the buffer groove 31. This connection method is stable and reliable, ensuring that the buffer pad 32 is more stably built into the buffer groove 31 and effectively fills the buffer groove 31.

[0048] The back panel 1, frame 2, inner frame 4, and connecting part 5 are made of the same material and are integrally molded. The same material and integral molding process make the physical and chemical properties of each part of the phone back cover consistent, which can effectively avoid deformation, cracking and other problems caused by the difference in thermal expansion coefficient between different materials, and improve the overall stability and durability of the phone back cover.

[0049] The shock-absorbing pad 7 is made of shock-absorbing foam material, the same material as the buffer pad 32, which can work together better to play a shock-absorbing and buffering role. The shock-absorbing pad 7 is bonded to the shock-absorbing cavity 6 to ensure that its position is fixed during use and to maintain a good shock-absorbing effect at all times.

[0050] The inner frame 4 and the outer frame 2 correspond to the volume buttons, power button, charging port and sound hole of the phone. The thickness of the inner frame 4 is 0.5mm-0.64mm. The relatively thick inner frame 4 is a conventional design that can protect the buttons and interface parts on the side of the phone. The inner frame 4 is disconnected from the volume buttons, power button, charging port and sound hole. The disconnected part of the inner frame 4 is inclined to avoid the design of the inner frame 4 from affecting the layout of the internal components of the phone (the matching components of the volume buttons, power button, charging port and sound hole).

[0051] like Figure 2 As shown, it should be noted that due to differences in mobile phones, most phones also have a speaker grille at the bottom (charging port area). Designing a separate inner frame 4 would provide minimal shock absorption and protection, and would also result in lower structural strength. Therefore, a conventional design with a thickness of 0.5mm-0.64mm can be used here.

[0052] The working process of this utility model is as follows: During daily use, when the mobile phone is accidentally dropped, the various anti-drop structures on the back cover of the mobile phone begin to function. If the inclined support 3 first contacts the ground, its metal material can withstand a certain impact force. At the same time, the buffer groove 31 and buffer pad 32 between the inclined support 3 and the frame 2 further absorb and disperse the impact force, reducing the energy transmitted to the frame 2.

[0053] (When the phone falls to the ground from the side) The shock-absorbing pad 7 inside the shock-absorbing cavity 6 between the frame 2 and the inner frame 4 will elastically deform when the phone is impacted, absorbing the impact force and preventing the impact force from being transmitted to the internal components of the phone, thereby protecting the important components such as the motherboard and battery inside the phone from damage.

[0054] Even in the event of a severe collision, the back cover of the phone maintains good structural integrity due to the integrated design of the back panel 1, frame 2, inner frame 4, and connecting part 5. This prevents the components from separating or deforming excessively, thus continuing to provide reliable protection for the phone.

[0055] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fall-resistant mobile phone back cover, comprising a back plate (1) and a frame (2), the back plate (1) and the frame (2) are integrally formed by a composite material to form a mobile phone back cover, characterized in that: The four corners of the frame (2) are provided with diagonal bracing (3). The inner side of the frame (2) is provided with an inner frame (4) between the diagonal bracing (3). The inner frame (4) and the frame (2) are provided with several connecting parts (5). The shock-absorbing cavity (6) formed between the inner frame (4) and the frame (2) is divided into separate spaces by the connecting parts (5). Each separate space is equipped with a shock-absorbing pad (7).

2. The anti-shatter mobile phone back cover according to claim 1, characterized in that: The thickness of the frame (2) is greater than that of the inner frame (4) to form a stepped groove (21), so that the mobile phone screen is built into the frame (2).

3. The anti-shatter mobile phone back cover according to claim 1, characterized in that: The thickness of the frame (2) is 0.4mm-0.54mm, and the thickness of the inner frame (4) is 0.1mm-0.24mm.

4. The anti-shatter mobile phone back cover according to claim 1, characterized in that: A buffer groove (31) is formed between the diagonal brace (3) and the frame (2), and a buffer pad (32) is installed in the buffer groove (31).

5. The anti-shatter mobile phone back cover according to claim 4, characterized in that: The inclined support frame (3) is made of metal, the buffer pad (32) is made of shock-absorbing foam, and the buffer pad (32) is bonded to the buffer groove (31).

6. The anti-shatter mobile phone back cover according to claim 1, characterized in that: The back panel (1), frame (2), inner frame (4) and connecting part (5) are made of the same material and are integrally formed.

7. A shockproof mobile phone back cover according to claim 1, characterized in that: The shock-absorbing pad (7) is made of shock-absorbing foam material and is bonded to the shock-absorbing cavity (6).

8. A shockproof mobile phone back cover according to claim 1, characterized in that: The inner frame (4) and the outer frame (2) correspond to each other, including but not limited to the volume button, power button, charging hole and sound hole of the mobile phone. The thickness of the inner frame (4) is 0.5mm-0.64mm, and the inner frame (4) is disconnected in the corresponding part.

9. A shockproof mobile phone back cover according to claim 8, characterized in that: The inner frame (4) has an inclined structure corresponding to the part that is broken.

Images