CN110417973A - A multi-layer dispersed absorption anti-drop system - Google Patents

Abstract

The invention relates to the field of mobile phone anti-drop technology, and discloses a multi-layer dispersed absorption type anti-drop system, including a TPU shell, a PC transparent back cover is arranged on the back side of the TPU shell, a metal frame is arranged on the outside of the PC transparent back cover, and a PC transparent back cover is provided. The inner side of the cover and the TPU shell is inlaid with a TPE inner frame, and the inner side of the TPE inner frame is provided with a shock-absorbing airbag. The present invention, through the design of the vertical sound channel hole, effectively increases the original volume of the mobile phone, making the sound transmission more three-dimensional, and through the TPE inner frame, TPU shell, PC transparent back cover, and metal frame, the mobile phone protective cover has four layers Shock-absorbing and anti-drop structure, the metal frame increases the performance of impact resistance and anti-bending, which greatly improves the protection function, and the protection function is better when used in outdoor sports and outdoor special types of work, and the anti-fall and scratch-resistant performance of the mobile phone protective cover is added. It can make the practical safety of the mobile phone more guaranteed.

Description

A multi-layer dispersed absorption anti-drop system

technical field

The invention relates to the technical field of anti-drop technology for mobile phones, in particular to a multi-layer dispersed absorption type anti-drop system.

Background technique

Mobile phone protective cover is a kind of coat that protects mobile phones. At present, smart touch-screen mobile phones with large screens are widely used, and mobile phone manufacturers are all following this trend. Mobile phone protective covers are also made for the above-mentioned smart touch-screen mobile phones Appropriate improvements have been made, so that the mobile phone protective case can meet the current smart touch-screen mobile phone in terms of appearance, use and protection.

In order to protect the mobile phone so that the surface of the mobile phone will not be scratched, people generally have a mobile phone protective case on the mobile phone, and the existing mobile phone protective case does not have a vertical sound channel hole design, and it must be relatively small in size and positioned For very limited products, it is extremely difficult to combine metal with PC plastic, TPE, and TPU. The main reason is that the combination of the four materials is not easy, and it is easy to fall off, and the anti-drop performance is not good. The bottom material of the existing protective cover is generally single PC or single TPU material. If the single PC material is too hard, it cannot effectively absorb shocks and is easy to scratch, while the single TPU material is too soft to effectively protect the mobile phone, and the anti-drop performance is not good.

Contents of the invention

The purpose of the present invention is to provide a multi-layer dispersed absorption anti-drop system to solve the problems raised in the above-mentioned background technology.

To achieve the above object, the present invention provides the following technical solutions:

A multi-layer dispersion-absorbing anti-drop system, including a TPU shell, a PC transparent back cover on the back of the TPU shell, a metal frame on the outside of the PC transparent back cover, a TPE inner frame inlaid on the inside of the PC transparent back cover and the TPU shell, There is a shock-absorbing airbag inside the TPE inner frame.

As a further solution of the present invention: the PC transparent back cover is obtained by injection molding, the inner surface is provided with dotted lines, and the surrounding circle is provided with steps for secondary injection molding.

As a further solution of the present invention: the TPU shell is obtained by secondary injection molding with the PC transparent back cover, and the surface is textured.

As a further solution of the present invention: the four corners of the TPU shell are provided with protruding outer bone positions.

As a further solution of the present invention: the lower end of the TPU shell is provided with a vertical sound channel.

As a further solution of the present invention: the TPE inner frame and the TPU outer frame are subjected to in-mold injection molding.

As a further solution of the present invention: the inner side of the TPU inner frame is provided with an uneven surface to form a shock-absorbing airbag.

As a further solution of the present invention: the metal frame is obtained by machining metal parts by CNC, and grinding, sandblasting and oxidizing the outer surface.

Compared with prior art, the beneficial effect of the present invention is:

1) Through the setting of the metal frame, the anti-drop, scratch-proof and anti-bending performance of the mobile phone protective cover is increased, which can effectively disperse and absorb the impact force of the mobile phone falling, used for mobile phone anti-drop, and can have a more unique touch;

2) The PC transparent back cover can effectively disperse and absorb the impact of falling mobile phones, which is used for mobile phone drop protection, and can effectively show the beauty of the original ecology of mobile phones;

3) The outer bone protrudes from the four corners of the TPU shell, which can effectively disperse and absorb the impact of the mobile phone falling, and is used to prevent the mobile phone from falling, so that the safety performance of the mobile phone is more guaranteed when used;

4) There are sound holes, charging holes, and vertical sound channel holes through the lower end of the TPU shell. The vertical sound channel holes can effectively expand the volume of the original mobile phone, and the sound transmission is more three-dimensional when using the mobile phone. The vertical sound channel and vertical structure design , protect the sound hole of the mobile phone to prevent dust from entering, and can effectively prevent dust;

5) There is a shock-absorbing airbag on the inside of the TPE inner frame, which can effectively disperse and absorb the impact of falling mobile phones, and is used to prevent mobile phones from falling, so that the safety performance of mobile phones is more guaranteed when they are used.

Description of drawings

Fig. 1 is a schematic diagram of a three-dimensional structure of a multi-layer dispersed absorption anti-drop system.

Fig. 2 is a left view structural schematic diagram of a multi-layer dispersed absorption anti-drop system.

Fig. 3 is a right view structure schematic diagram of a multi-layer dispersed absorption anti-drop system.

Fig. 4 is a front view structural schematic diagram of a multi-layer dispersed absorption anti-drop system.

Fig. 5 is a schematic diagram of a rear view structure of a multi-layer dispersed absorption anti-drop system.

Fig. 6 is a schematic cross-sectional structure diagram of a multi-layer dispersed absorption anti-drop system.

Fig. 7 is a schematic diagram of the bottom structure of a multi-layer dispersed absorption anti-drop system.

In the picture: 1- TPE inner frame, 2- TPU shell, 3- PC transparent back cover, 4- metal frame, 5- vertical sound channel, 6- shock-absorbing airbag.

Detailed ways

It should be noted that, in the case of no conflict, the embodiments of the present invention and the features in the embodiments can be combined with each other.

In describing the present invention, it should be understood that the terms "center", "longitudinal", "transverse", "upper", "lower", "front", "rear", "left", "right", " The orientations or positional relationships indicated by "vertical", "horizontal", "top", "bottom", "inner" and "outer" are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and Simplified descriptions, rather than indicating or implying that the device or element referred to must have a particular orientation, be constructed and operate in a particular orientation, and thus should not be construed as limiting the invention. In addition, the terms "first", "second", etc. are used for descriptive purposes only, and should not be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, a feature defined as "first", "second", etc. may expressly or implicitly include one or more of that feature. In the description of the present invention, unless otherwise specified, "plurality" means two or more.

In the description of the present invention, it should be noted that unless otherwise specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection or a detachable connection. Connected, or integrally connected; it may be mechanically connected or electrically connected; it may be directly connected or indirectly connected through an intermediary, and it may be the internal communication of two components. Those of ordinary skill in the art can understand the specific meanings of the above terms in the present invention based on specific situations.

The present invention will be described in detail below with reference to the accompanying drawings and examples.

Example 1

Referring to Figures 1 to 7, in an embodiment of the present invention, a multi-layer dispersed absorption anti-drop system includes a TPU shell 2, and TPU is called thermoplastic polyurethane elastomer rubber in Chinese, which has good processability, wear resistance and environmental protection , so that people can not only feel better in the process of using, but also wear-resistant and scratch-resistant, so as to better protect the mobile phone. The left and right ends of the TPU shell 2 are provided with keypad areas for the mobile phone, which is convenient for the use of the mobile phone. The TPU shell 2 2 The rear side is provided with a reserved opening for the first mobile phone camera, the TPE inner frame 1 and the TPU outer frame 2 are in-molded for injection molding, and the lower end of the TPU shell 2 is provided with a vertical sound channel 5, which can effectively expand the original The volume of the mobile phone, the sound transmission is more three-dimensional when using the mobile phone, the vertical sound channel 5, the vertical structure design, protects the sound hole of the mobile phone to prevent dust from entering, and can effectively prevent dust, so that it will not affect the normal use of the mobile phone under the premise of protecting the mobile phone , the lower end of the TPU shell 2 is also provided with a sound hole and a charging hole, and the rear side of the TPU shell 2 is provided with a PC transparent back cover 3, and PC is an abbreviation of polycarbonate, which has excellent electrical insulation, extensibility, dimensional stability and Chemical corrosion resistance, high strength, heat resistance and cold resistance, also has the advantages of self-extinguishing, flame retardant, non-toxic, colorable, etc., which can increase the strength of the device, and the full transparent design of the PC transparent back cover 3 , the PC transparent back cover 3 and the TPU shell 2 are interlocked together through an in-mold injection molding process, the TPU shell 2 is obtained by secondary injection molding with the PC transparent back cover 3, and the surface is textured, and the PC transparent back cover 3 Gained by the injection molding process, the inner surface is provided with dotted lines, and the surrounding circle is provided with steps for secondary injection molding. The upper end of the PC transparent back cover 3 is provided with a reserved opening for the second mobile phone camera, which can facilitate the installation of the mobile phone camera. Placed, the outside of the PC transparent back cover 3 is provided with a metal frame 4, the metal frame 4 is obtained by machining metal parts by CNC, and the outer surface is polished, sandblasted and oxidized. performance, can effectively disperse and absorb the impact of mobile phone falling, and can be used for mobile phone anti-dropping, and can have a more unique touch. The inner side of the cover 3 and the TPU shell 2 is inlaid with a TPE inner frame 1. TPE is a thermoplastic elastomer material with high strength, high resilience, and can be processed by injection molding. It has a wide range of applications, is environmentally friendly, non-toxic and safe, and has excellent coloring The PC transparent back cover 3 and the inner side of the TPU shell 2 are inlaid with a TPE inner frame 1 through the in-mold injection molding process, which can effectively absorb the impact of the mobile phone falling, and is used for the mobile phone to prevent falling. The TPU shell 2 is effective Absorb the impact force of mobile phone falling, be used for mobile phone drop-proof, the inner side of TPE inner frame 1 is provided with shock-absorbing air bag 6, absorb the impact force of mobile phone falling effectively, be used for mobile phone drop-proof, the inner side of described TPU inner frame 1 The shock-absorbing airbag 6 formed by the uneven surface, the combination of TPE inner frame 1, TPU outer shell 2, PC transparent back cover 3, and metal frame 4 can effectively disperse and absorb the drop of the mobile phone The impact force is used to prevent mobile phones from falling.

Example 2

In another embodiment of the present invention, the four corners of the TPU shell 2 are provided with protruding outer bones, which can effectively disperse and absorb the impact force of the mobile phone falling, and are used for the anti-fall of the mobile phone, which perfectly solves the problem of anti-fall, shock absorption and scratch resistance Flowers, and prolong the service life.

The working principle of the present invention is: the mobile phone protective cover realizes adding metal elements on the basis of the fully transparent mobile phone protective cover for the first time. This product is designed in strict accordance with the 3-meter drop test standard. It is composed of four layers of PC (or other hard plastic), TPU (or other soft rubber), TPE (or other synthetic rubber), and aluminum alloy (or other metal materials). TPU (or other rubber soft rubber) soft rubber is shock-absorbing and drop-resistant, PC (or other hard plastic) hard rubber is impact-resistant, TPE (or other synthetic rubber) is impact-resistant, aluminum alloy (or other metal material) frame is strengthened and drop-resistant, It can meet the military-grade anti-drop standard. In addition, the product design pays attention to details, four-layer shock-absorbing structure design, and a shock-absorbing airbag is designed on the inside of the TPU (or other soft rubber) frame. The setting of the metal frame 4 increases the performance of the mobile phone protective cover against falling, scratching and bending, which can effectively disperse and absorb the impact of falling mobile phones, and is used for mobile phone anti-dropping, and can have a more unique touch; the opening of the product It is slightly higher than the screen of the mobile phone, which can prevent the screen from being scratched, or contact the ground when it falls, and effectively protect the screen of the mobile phone. The product has a unique shape, bright colors, and a very metallic texture. By using a PC transparent back cover 3, it can effectively disperse and absorb The impact force of the mobile phone falling is used to prevent the mobile phone from falling, and can also effectively display the original beauty of the mobile phone; the inner side of the TPE inner frame 1 is equipped with a shock-absorbing airbag 6, which can effectively disperse and absorb the impact force of the mobile phone falling, It is used to prevent falling of mobile phones, so that the safety performance of mobile phones is more guaranteed. The present invention protrudes from the four corners of the TPU shell 2 to effectively disperse and absorb the impact force of falling mobile phones, and is used for anti-falling of the mobile phone, so that the safety performance of the mobile phone is more guaranteed during use. In the present invention, the lower end of the TPU mobile phone case 2 is provided with a sound hole, a charging hole, and a vertical sound channel 5. The vertical sound channel 5 can effectively expand the volume of the original mobile phone, and the sound transmission is more three-dimensional when using the mobile phone. Vertical sound channel 5, vertical structure design, protects the sound hole of the mobile phone to prevent dust from entering, and can effectively prevent dust.

The above descriptions are only preferred embodiments of the present invention, and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included in the scope of the present invention. within the scope of protection.

Claims (8)

1. A multi-layer dispersed absorption anti-drop system, including a TPU shell (2), and a PC transparent back cover (3) is arranged on the rear side of the TPU shell (2), characterized in that the PC transparent back cover (3) is set on the outside There is a metal frame (4), a PC transparent back cover (3) and a TPE inner frame (1) embedded inside the TPU shell (2), and a shock-absorbing airbag (6) is provided inside the TPE inner frame (1). 2. A multi-layer dispersed absorption anti-drop system according to claim 1, characterized in that the PC transparent back cover (3) is obtained by injection molding process, and the inner surface is provided with dotted lines, and the surrounding circle is also provided with Steps for overmolding. 3. A multi-layer dispersion-absorption anti-drop system according to claim 1, characterized in that the TPU shell (2) is obtained by secondary injection molding with the PC transparent back cover (3), and the surface is processed by sun-patterning process . 4. A multi-layer dispersed absorption anti-drop system according to claim 1 or 3, characterized in that, the four corners of the TPU shell (2) are provided with protruding outer bone positions. 5. A multi-layer dispersed absorption anti-drop system according to claim 4, characterized in that, a vertical sound channel (5) is provided at the lower end of the TPU shell (2). 6 . The multi-layer dispersion-absorption anti-drop system according to claim 5 , wherein the TPE inner frame ( 1 ) and the TPU outer frame ( 2 ) are subjected to in-mold injection molding. 7 . 7. The multi-layer dispersed absorption anti-drop system according to claim 6, characterized in that, the inner side of the TPU inner frame (1) is provided with uneven surfaces to form shock-absorbing airbags (6). 8. The multi-layer dispersion-absorption anti-drop system according to claim 1, characterized in that, the metal frame (4) is made by machining metal parts with CNC, and the outer surface is polished, sandblasted and oxidized.