Damping and anti-falling mobile phone shell

Abstract

The utility model discloses a shock-absorbing anti-drop mobile phone shell, which relates to the technical field of mobile phone shells, and comprises a TPU frame and a PC back shell, the periphery of the outer edge of the PC back shell and the TPU frame are connected into a whole and enclose to form an accommodating cavity for accommodating a mobile phone, a PET film is fixedly arranged on the outer surface of the PC back shell, and the PET film is provided with a pattern layer and / or a texture layer; elastic buffering of the TPU frame and strength supporting of the PC back shell are combined, double protection is provided for the mobile phone, when the mobile phone falls off, the TPU frame can firstly absorb impact force and then transmit residual force to the PC back shell, the PC back shell resists impact through the strength of the PC back shell, and therefore the mobile phone is effectively protected; the pattern layer and / or the texture layer of the PET film add rich visual effects to the mobile phone shell, and the personalized requirements of a user for the appearance of a mobile phone are met.

Description

Technical Field

[0001] The utility model relates to the technical field of mobile phone cases, and specifically relates to a shock-absorbing and anti-falling mobile phone case. Background Art

[0002] A smart phone refers to a general term for a type of mobile phone that, like a personal computer, has an independent operating system and an independent operating space, allows users to install programs provided by third-party service providers such as software, games, and navigation by themselves, and can achieve wireless network access through a mobile communication network. Currently, the development trend of smart phones is to fully incorporate a number of patented technologies such as artificial intelligence and 5G, making smart phones the most widely used patented products.

[0003] With the development of the economy and the continuous progress of society, more and more people use smart phones. Due to the precision inside smart phones, mobile phone cases are needed to protect the phones so that they are not easily damaged when dropped. However, in actual use, the anti-falling effect of mobile phones is relatively poor, and the screen or internal electrical components of the phone may be damaged after the phone falls, and the shock-absorbing protection effect of the phone is relatively average.

[0004] In view of this, it is necessary to propose an improved technical solution to solve the above problems. Content of the Utility Model

[0005] The utility model aims to provide a technical solution that can solve the above problems in order to overcome the above deficiencies.

[0006] A shock-absorbing and anti-falling mobile phone case includes a TPU frame and a PC back shell. The outer edge of the PC back shell is connected to the TPU frame integrally and encloses to form a receiving cavity for the mobile phone. A PET film is fixedly provided on the outer surface of the PC back shell, and the PET film has a pattern layer and / or a texture layer.

[0007] As a further scheme of the utility model: the PET film is attached to the PC back shell by IML technology, and the TPU frame is combined with the PC back shell and the PET film by insert molding technology.

[0008] As a further scheme of the utility model: the TPU frame is combined with the PC back shell by insert molding technology, and the PET film is fixedly provided on the PC back shell by means of adhesion, hot pressing or ultrasonic welding.

[0009] As a further scheme of the utility model: a connecting bone is convexly provided along the perimeter of the TPU frame, and the connecting bone has a plurality of evenly and spaced bone positions. Slots for combining and connecting the plurality of bone positions are provided on the PC back shell, or on the PC back shell and the PET film, and the plurality of slots correspond to the plurality of bone positions one by one.

[0010] As a further solution of the present utility model: openings corresponding to the mobile phone camera are provided on both the PC back shell and the PET film, and the connecting bone is extended with a wrap-around edge corresponding to the opening, and the wrap-around edge is wrapped along the edge of the opening to form a camera protection frame surrounding the opening.

[0011] As a further solution of the present utility model: a sunk platform is extended along the side of the camera protection frame, and the sunk platform protrudes on the outer surface of the PET film.

[0012] As a further solution of the present utility model: the connecting bone is further provided with a shock-absorbing surrounding frame protruding on the outer surface of the PET film, and the camera protection frame is connected to the shock-absorbing surrounding frame and is located on one side within the shock-absorbing surrounding frame;

[0013] Wherein, a plurality of bone positions are formed between the shock-absorbing surrounding frame and the TPU frame.

[0014] As a further solution of the present utility model: the four corners of the shock-absorbing surrounding frame are convexly arranged, and an aesthetic groove is arranged on the inner side of the shock-absorbing surrounding frame.

[0015] As a further solution of the present utility model: the TPU frame is provided with an outer airbag structure at its four corner positions.

[0016] As a further solution of the present utility model: the TPU frame is provided with an inner airbag structure along its inner side, and the inner airbag structure has a diamond-shaped convex texture.

[0017] Compared with the prior art, the beneficial effects of the present utility model are as follows:

[0018] 1) The combination of the elastic buffer of the TPU frame and the strength support of the PC back shell provides double protection for the mobile phone. When the mobile phone drops, the TPU frame can first absorb the impact force, and then transfer the remaining force to the PC back shell, and the PC back shell resists the impact through its own strength, thereby effectively protecting the mobile phone;

[0019] 2) The pattern layer and / or texture layer of the PET film add rich visual effects to the mobile phone case, meeting the personalized needs of users for the appearance of the mobile phone. Whether it is a simple style, a fashionable trend or an artistic creativity, it can be achieved through the design of the PET film; at the same time, the wear-resistant and scratch-resistant characteristics of the PET film enable the mobile phone case to still maintain a good appearance during long-term use. Even if it comes into contact with other items frequently, it is not easy to appear scratches and abrasions, extending the service life of the mobile phone case.

[0020] The additional aspects and advantages of the present utility model will be partially given in the following description, partially will become obvious from the following description, or will be understood through the practice of the present utility model. Description of the Drawings

[0021] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the following will briefly introduce the accompanying drawings required for the description of the embodiments or the prior art. Obviously, the accompanying drawings in the following description are only some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other accompanying drawings can also be obtained based on these drawings.

[0022] Figure 1 is a schematic structural view of one perspective of the present invention;

[0023] Figure 2 is Figure 1 an enlarged structural view of part A in

[0024] Figure 3 is a schematic structural view of another perspective of the present invention;

[0025] Figure 4 is an exploded structural view of the present invention.

[0026] The reference numerals and names in the drawings are as follows:

[0027] 1, TPU frame; 2, PC back shell; 3, accommodation chamber; 4, PET film; 5, rib position; 6, slot position; 7, opening; 8, camera protection frame; 9, counterbore; 10, shock-absorbing frame; 11, protrusion; 12, art groove; 13, outer airbag structure; 14, inner airbag structure; 15, diamond-shaped raised texture. Specific embodiments

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of the present invention.

[0029] Please refer to Figures 1-4 , in the embodiments of the present invention, a shock-absorbing and anti-drop mobile phone case includes a TPU frame 1 and a PC back shell 2. The outer edge of the PC back shell 2 is integrally connected to the TPU frame 1 and encloses to form an accommodation chamber 3 for accommodating the mobile phone. A PET film 4 is fixedly provided on the outer surface of the PC back shell 2. The PET film 4 has a pattern layer and / or a texture layer (not shown).

[0030] In the technical solution of this utility model, TPU is a material with high elasticity and high toughness. Its molecular structure determines that it can quickly deform when subjected to external impact, convert the impact energy into elastic potential energy and store it, and then slowly release it. This property enables the TPU frame 1 to act like a "spring" at the moment when the mobile phone drops, absorbing most of the impact force. For example, when the mobile phone drops from a certain height, the TPU frame 1 first touches the ground, and the frame will quickly deform, buffering the impact force through its own elastic deformation, reducing the force transmitted to the inside of the mobile phone. At the same time, the high toughness of TPU also enables it to withstand multiple impacts without being easily damaged;

[0031] PC is an engineering plastic with high strength and high hardness. It can provide a strong support for the mobile phone, preventing the back of the mobile phone from deforming when being squeezed or impacted. For example, in daily use, if the mobile phone is placed in a backpack and squeezed by other items, the PC back shell 2 can effectively resist this pressure and protect the back of the mobile phone from damage. In addition, the PC back shell 2 also has good heat resistance and corrosion resistance, and can maintain stable performance under different environmental conditions;

[0032] PET has good wear resistance, scratch resistance and chemical corrosion resistance. The pattern layer and / or texture layer on its surface can be realized through processes such as printing and coating, which not only increases the beauty of the mobile phone case, but also plays a certain anti-slip role. For example, when the mobile phone is placed on a table, the PET film 4 can prevent the back of the mobile phone from directly contacting the table, reducing friction and scratches. At the same time, the pattern layer and texture layer can be personalized according to the user's preferences to meet the aesthetic needs of different users;

[0033] In summary, the elastic buffering of the TPU frame 1 and the strength support of the PC back shell 2 are combined to provide double protection for the mobile phone. When the mobile phone drops, the TPU frame 1 can first absorb the impact force, and then transfer the remaining force to the PC back shell 2. The PC back shell 2 then resists the impact through its own strength, thus effectively protecting the mobile phone; the pattern layer and / or texture layer of the PET film 4 add rich visual effects to the mobile phone case, meeting the user's personalized needs for the appearance of the mobile phone. Whether it is a simple style, a fashionable trend or an artistic creativity, it can be achieved through the design of the PET film 4; at the same time, the wear-resistant and scratch-resistant characteristics of the PET film 4 enable the mobile phone case to still maintain a good appearance during long-term use. Even if it comes into contact with other items frequently, it is not easy to appear scratches and wear, extending the service life of the mobile phone case.

[0034] In the embodiment of this utility model, the PET film 4 is attached to the PC back shell 2 through the IML process, and the TPU frame 1 is combined with the PC back shell 2 and the PET film 4 through the insert molding process;

[0035] Alternatively, the TPU frame 1 is combined with the PC back shell 2 through the overmolding process, and the PET film 4 is fixed to the PC back shell 2 by gluing, hot pressing or ultrasonic welding.

[0036] The IML (In-Mold Labeling) process bonds the PET film 4 to the PC back shell 2: In the IML process, the ink is first printed on the inner surface of the PET film 4, and then the PET film 4 is formed into a specific shape by hot pressing. Finally, during the injection molding process, the formed PET film 4 is placed into the mold and integrally molded with the PC back shell 2, making the combination of the PET film 4 and the PC back shell 2 tight and not easily falling off.

[0037] The overmolding process combines the TPU frame 1, the PC back shell 2 and the PET film 4: The overmolding process is a secondary injection molding process. First, the PC back shell 2 and the PET film 4 (after being combined by the IML process) are placed into the secondary molding mold, and then the molten TPU material is injected to tightly combine the TPU frame 1 with the PC back shell 2 and the PET film 4. This process utilizes the characteristics of different materials to form a firm connection at the joint, improving the overall strength and stability of the mobile phone case.

[0038] Gluing, hot pressing or ultrasonic welding to fix the PET film 4: When using these methods to fix the PET film 4 on the PC back shell 2, gluing combines the PET film 4 and the PC back shell 2 through the adhesive force of the glue; hot pressing softens and fuses the materials of the PET film 4 and the PC back shell 2 by high temperature; ultrasonic welding makes the two materials fuse with each other at the molecular level through the vibration energy of ultrasonic waves. These methods can all achieve a reliable connection between the PET film 4 and the PC back shell 2.

[0039] In the embodiment of the present utility model, a connecting bone protrudes along the perimeter of the TPU frame 1, and a plurality of bone positions 5 are evenly and spacedly arranged on the connecting bone. Slots 6 for the combination and connection of the plurality of bone positions 5 are provided on the PC back shell 2, or on the PC back shell 2 and the PET film 4, and the plurality of slots 6 correspond to the plurality of bone positions 5 one by one.

[0040] The design of the connecting bone and the bone positions 5 is to establish a more firm connection between the TPU frame 1 and the PC back shell 2 (or between the PC back shell 2 and the PET film 4). The connecting bone protrudes 11 along the perimeter of the TPU frame 1, increasing the contact area and connection strength; the bone positions 5 are evenly and spacedly arranged on the connecting bone. When combined with the slots 6 on the PC back shell 2 or the PC back shell and the PET film 4, a connection method similar to the mortise and tenon structure is formed, making the combination between the components more tight and stable.

[0041] When the mobile phone is impacted by external force, the structure connecting the bone and the bone position 5 can disperse the impact force to more parts, avoiding damage to the connection part due to excessive local stress. At the same time, the combination of the bone position 5 and the groove position 6 makes the connection between different materials more firm, enabling it to better withstand forces in various directions and improving the overall mechanical properties of the mobile phone case.

[0042] In the embodiment of the present utility model, openings 7 corresponding to the mobile phone camera are provided on both the PC back shell 2 and the PET film 4. The connecting bone is extended with a border corresponding to the opening 7, and the border is covered along the edge of the opening 7 to form a camera protection border 8 surrounding the opening 7.

[0043] Considering that the mobile phone camera is an important and fragile component, corresponding openings 7 are specially provided in the design of the mobile phone case to ensure unobstructed use of the mobile phone camera. At the same time, the border extended from the connecting bone is covered around the edge of the opening 7 to form the camera protection border 8. This design can provide additional protection around the mobile phone camera, preventing the camera from being collided, scratched or invaded by dust during daily use; by utilizing the structure of the connecting bone and extending it to the opening 7 of the mobile phone camera to form a border, it not only makes full use of the existing material structure but also does not require additional complex components, achieving the optimal integration of function and structure; the connecting bone of the TPU border 1 itself has certain elasticity and toughness, and the extended border, that is, the formed camera protection border 8, can play a buffering role when impacted by external force to protect the camera.

[0044] In the embodiment of the present utility model, a counterbore 9 is extended along the side of the camera protection border 8, and the counterbore 9 protrudes on the outer surface of the PET film 4.

[0045] The counterbore 9 is extended along the side of the camera protection border 8, making full use of the space around the camera area of the mobile phone case. The presence of the counterbore 9 provides an additional protection area for the mobile phone camera and also increases the stability of the overall structure of the mobile phone case; the counterbore 9 protrudes on the outer surface of the PET film, so that when the mobile phone is placed or slightly collided, the counterbore 9 first contacts the external object, playing a role in buffering and dispersing the impact force to further protect the camera; at the same time, commercial texts and logos can be printed on the surface of the counterbore 9 to meet the customized needs of customers.

[0046] In the embodiment of the present utility model, the connecting bone is further provided with a shock-absorbing border frame 10 protruding on the outer surface of the PET film 4, and the camera protection border 8 is connected to the shock-absorbing border frame 10 and is located on one side within the shock-absorbing border frame 10;

[0047] Wherein, a plurality of the bone positions 5 are formed between the shock-absorbing border frame 10 and the TPU border 1.

[0048] The shock-absorbing enclosure 10 provided on the connecting bone further enhances the protection of the mobile phone. The shock-absorbing enclosure 10 protrudes from the outer surface of the PET film 4 and forms a multi-layer protection structure together with the TPU frame 1. When the mobile phone is subjected to external impact, the shock-absorbing enclosure 10 can first bear part of the impact force and then transfer the remaining force to the TPU frame 1 and other parts, thereby reducing the damage to the mobile phone; the camera protection frame 8 is located on one side inside the shock-absorbing enclosure 10. This layout enables the camera to be more centrally protected. The shock-absorbing enclosure 10 can not only protect the edges and back of the mobile phone but also provide additional protection for the camera to prevent the camera from being damaged during a collision; multiple bone positions 5 are formed between the shock-absorbing enclosure 10 and the TPU frame 1. These bone positions 5 increase the strength and stability of the connecting bone. The presence of the bone positions 5 makes the connection between the shock-absorbing enclosure 10 and the TPU frame 1 more firm and can better withstand the action of external forces. At the same time, the bone positions 5 can also disperse the impact force and improve the overall impact resistance of the mobile phone case.

[0049] In the embodiment of the present utility model, the four corners of the shock-absorbing enclosure 10 are provided with protrusions 11, and an aesthetic groove 12 is provided on the inner side of the shock-absorbing enclosure 10.

[0050] When the mobile phone drops, usually the four corners touch the ground first and receive the greatest impact force. By providing the protrusions 11 at the four corners of the shock-absorbing enclosure 10, it can bear the impact force preferentially when the mobile phone drops, playing a better buffering role; the four corners of the protrusions 11 can increase the thickness and strength of the shock-absorbing enclosure 10 at key positions, making it more effective in dispersing and absorbing the impact force and protecting the key components inside the mobile phone;

[0051] The setting of the aesthetic groove 12 is mainly for aesthetic and functional considerations. From an aesthetic perspective, the aesthetic groove 12 can add a sense of design and layering to the mobile phone case, making its appearance more unique and attractive; from a functional perspective, the aesthetic groove 12 can, to a certain extent, increase the elasticity and deformation ability of the shock-absorbing enclosure 10. When the mobile phone is subjected to external impact, the material at the aesthetic groove 12 can deform more easily, thereby absorbing more energy and reducing the damage to the mobile phone.

[0052] In the embodiment of the present utility model, the TPU frame 1 is provided with an outer airbag structure 13 at its four corner positions; the TPU frame 1 is provided with an inner airbag structure 14 along its inner side, and the inner airbag structure 14 has a diamond-shaped convex texture 15.

[0053] The outer airbag structure 13 is provided at the four corner positions of the TPU frame 1 mainly considering that the four corners of the mobile phone are most likely to be impacted when the mobile phone drops. The outer airbag structure 13 can quickly deform at the moment when the mobile phone lands, absorb and disperse the impact force through the compression of gas, and reduce the risk of damage to the four corners of the mobile phone;

[0054] An inner airbag structure 14 is provided inside the TPU frame 1. Similarly, it is to provide buffering when the mobile phone is subjected to external forces. The diamond-shaped convex texture 15 of the inner airbag structure 14 not only increases the surface area of the airbag, but also can more effectively disperse the force when stressed, making the buffering effect more uniform.

[0055] For those skilled in the art, it is obvious that the present utility model is not limited to the details of the above-described exemplary embodiments, and can be implemented in other specific forms without departing from the spirit or basic characteristics of the present utility model. Therefore, from any point of view, the embodiments should be regarded as exemplary and non-restrictive. The scope of the present utility model is defined by the appended claims rather than the above description. Therefore, it is intended to embrace all changes falling within the meaning and scope of the equivalent elements of the claims in the present utility model.

Claims

1. A shock-absorbing and anti-falling mobile phone case, characterized in that, It includes a TPU frame and a PC back shell. The outer edge periphery of the PC back shell is connected to the TPU frame integrally and encloses to form a receiving chamber for the mobile phone. A PET film is fixedly provided on the outer surface of the PC back shell, and the PET film has a pattern layer and / or a texture layer.

2. The shock-absorbing and anti-falling mobile phone case according to claim 1, wherein The PET film is attached to the PC back shell by an IML process, and the TPU frame is combined with the PC back shell and the PET film by an insert molding process.

3. The shock-absorbing and anti-falling mobile phone case according to claim 1, wherein The TPU frame is combined with the PC back shell by an insert molding process, and the PET film is fixedly provided on the PC back shell by means of gluing, hot pressing or ultrasonic welding.

4. A shock-absorbing and anti-falling mobile phone case according to claim 1 or 2 or 3, characterized in that, A connecting bone protrudes along the perimeter of the TPU frame, and there are a plurality of evenly and spaced bone positions on the connecting bone. Slots for the combination and connection of the plurality of bone positions are provided on the PC back shell or on the PC back shell and the PET film, and the plurality of slots correspond to the plurality of bone positions one by one.

5. The shock-absorbing and anti-falling mobile phone case according to claim 4, characterized in that, Openings corresponding to the mobile phone camera are provided on both the PC back shell and the PET film. The connecting bone extends to be provided with a border corresponding to the opening, and the border is wrapped along the edge of the opening to form a camera protection border surrounding the opening.

6. The shock-absorbing and anti-drop mobile phone case according to claim 5, wherein, A sunk platform extends along the side of the camera protection border, and the sunk platform protrudes on the outer surface of the PET film.

7. The shock-absorbing and anti-drop mobile phone case according to claim 5, characterized in that, The connecting bone is further provided with a shock-absorbing surrounding frame protruding on the outer surface of the PET film. The camera protection border is connected to the shock-absorbing surrounding frame and is located on one side within the shock-absorbing surrounding frame; Among them, a plurality of the bone positions are formed between the shock-absorbing surrounding frame and the TPU frame.

8. The shock-absorbing and anti-drop mobile phone case according to claim 7, wherein, The four corners of the shock-absorbing surrounding frame protrude, and an art groove is provided on the inner side of the shock-absorbing surrounding frame.

9. The shock-absorbing and anti-drop mobile phone case according to claim 1, wherein The TPU frame is provided with an outer airbag structure at its four corner positions.

10. A shock-absorbing and anti-falling mobile phone case according to claim 1, characterized in that, The TPU frame is provided with an inner airbag structure along its inner side, and the inner airbag structure has a diamond-shaped protruding texture.

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