Mobile phone shell formed by TPU (thermoplastic polyurethane) and PC (polycarbonate) secondary injection molding

Abstract

The utility model discloses a TPU + PC mobile phone shell, belongs to the technical field of mobile phone shells, and particularly relates to a mobile phone shell formed by TPU + PC secondary injection molding, which comprises a PC outer full-wrapping shell, a TPU inner rubber-wrapping shell and keys, the mobile phone shell comprises a PC outer full-wrapping shell and a TPU inner rubber-wrapping shell, the PC outer full-wrapping shell is of a full-wrapping structure, the PC outer full-wrapping shell is matched with the TPU inner rubber-wrapping shell, so that the PC outer full-wrapping shell is wrapped outside the TPU inner rubber-wrapping shell, and the TPU inner rubber-wrapping shell is of a peripheral wrapping structure and wraps a frame and the bottom of a mobile phone. According to the technical scheme, the PC shell is subjected to injection molding firstly, then the PC shell is buckled into a mold to be subjected to TPU secondary injection molding, the high-temperature fusion of TPU and PC is utilized to achieve an integrated effect, so that the machine is more convenient to assemble and disassemble, meanwhile, the key part design adopts PC to be communicated together to be different from other product design, and it is guaranteed that the problem of deformation cannot occur in the production and use process.

Description

Technical Field

[0001] The utility model discloses a TPU+PC mobile phone shell, belongs to the technical field of mobile phone shells, and specifically relates to a mobile phone shell formed by secondary injection molding of TPU+PC. Background Art

[0002] For example, the patent number is 202020580793.X, and the patent name is a TPU+PC rubber-coated mobile phone protective case. It discloses a TPU+PC rubber-coated mobile phone protective case, which belongs to the field of mobile phone protective cases and includes a PC shell, a TPU rubber-coated layer, a receiving cavity, a PC frosted surface, and a TPU frosted surface. The utility model covers the mobile phone through the receiving cavity on the PC shell. The internal PC frosted surface increases the friction between the mobile phone and the inside of the PC shell. The TPU frosted surface outside the TPU rubber-coated layer increases the friction of the TPU rubber-coated layer to prevent it from slipping from the hand during use. The TPU rubber-coated layer has a soft texture, which increases the comfort of holding. The harder texture of the PC shell can absorb the impact force when the mobile phone falls to the ground, thereby reducing damage to the mobile phone. Compared with simple hard and soft mobile phone cases, the protection effect and feel are improved.

[0003] The traditional TPU+PC coated mobile phone case structure is made of PC material for the inner shell and TPU material for the outer shell, and is made of a double shell structure. 1 This structure is very inconvenient when assembling and disassembling the phone. At the same time, the buttons of the traditional mobile phone case will have poor key functions. Utility Model Content

[0004] Purpose of the utility model: to provide a mobile phone case using TPU+PC secondary injection molding to solve the above-mentioned problems.

[0005] Technical solution: A mobile phone case using TPU+PC secondary injection molding, including: a PC full-cover shell, a TPU inner plastic shell and buttons;

[0006] The PC outer full-enclosed shell adopts a full-enclosed structure, and the PC outer full-enclosed shell cooperates with the TPU inner rubber-enclosed shell so that the PC outer full-enclosed shell is wrapped around the outside of the TPU inner rubber-enclosed shell. The TPU inner rubber-enclosed shell adopts a surrounding wrapping structure and is wrapped around the frame and bottom of the mobile phone.

[0007] In a further embodiment, the button is made of metal or plastic.

[0008] In a further embodiment, the buttons are located on the TPU inner plastic-encapsulated shell and are consistent with the button positions on the mobile phone, and the PC outer fully-encapsulated shell is provided with button holes corresponding to the buttons on the TPU inner plastic-encapsulated shell.

[0009] In a further embodiment, the PC outer full-enclosed shell and the TPU inner rubber-enclosed shell are both provided with other corresponding holes that are consistent with the mobile phone.

[0010] In a further embodiment, the buttons on the TPU inner plastic-encapsulated shell pass through the button holes on the PC outer fully-encapsulated shell to the outside.

[0011] In a further embodiment, the top of the TPU inner encapsulated shell is folded outward to form a top limit for the PC outer full-encapsulated shell, and the folded width is aligned with the PC outer full-encapsulated shell;

[0012] The bottom of the TPU inner rubber-encapsulated shell is folded inwards to form a support for the bottom of the mobile phone.

[0013] In a further embodiment, a camera hole corresponding to the mobile phone camera is opened at the bottom of the PC outer all-encompassing shell.

[0014] The utility model has the following advantages:

[0015] 1. The product design is designed by PC+TPU secondary injection molding. First, the PC shell is injection molded, and then the PC shell is buckled into the mold for TPU secondary injection molding. The high-temperature fusion of TPU and PC is used to achieve an integrated effect, which is convenient for disassembly.

[0016] 2. The TPU surrounds the phone to protect it from falling. At the same time, because TPU itself has toughness, it is easy to assemble and disassemble the phone and has anti-fall function.

[0017] 3. The back and sides are designed with PC hard glue to ensure the protection of the phone while minimizing the area of ​​TPU contact with the consumer's hands during use, greatly reducing the yellowing problem during use.

[0018] 4. The button design is connected by PC, which is different from other product designs, ensuring that there will be no deformation during production and use.

[0019] 5. The buttons are made of independent hardware or plastic buttons to ensure the independence of the buttons, the integrated design of the appearance and the good feel of the button functions. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is an exploded view of the utility model.

[0021] Figure 2 It is a schematic diagram of the utility model.

[0022] Figure 3 It is a left view of the utility model.

[0023] Figure numerals: PC outer full-enclosed shell 1, TPU inner rubber-enclosed shell 2, button 3, button hole 4, camera hole 5. DETAILED DESCRIPTION

[0024] The technical solution of the utility model will be described clearly and completely below in conjunction with the accompanying drawings. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0026] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal connection of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, the technical features involved in the different embodiments of the present utility model described below can be combined with each other as long as they do not conflict with each other.

[0027] A mobile phone case using TPU+PC secondary injection molding, comprising: a PC outer full-cover shell 1, a TPU inner plastic-covered shell 2 and a button 3;

[0028] In one embodiment, Figures 1 to 3 As shown, the PC outer full-enclosed shell 1 adopts a full-enclosed structure, and the PC outer full-enclosed shell 1 cooperates with the TPU inner rubber-enclosed shell 2 so that the PC outer full-enclosed shell 1 is wrapped around the outside of the TPU inner rubber-enclosed shell 2, and the TPU inner rubber-enclosed shell 2 adopts a four-sided wrapping structure and is wrapped around the frame and bottom of the mobile phone.

[0029] In one embodiment, Figures 1 to 3 As shown, the button 3 is made of metal or plastic.

[0030] In one embodiment, Figures 1 to 3 As shown, the button 3 is located on the TPU inner plastic-encapsulated shell 2 and is consistent with the position of the button 3 on the mobile phone. The PC outer full-encapsulated shell 1 is provided with a button hole 4 corresponding to the button 3 on the TPU inner plastic-encapsulated shell 2.

[0031] In one embodiment, Figures 1 to 3 As shown, the PC outer full-enclosed shell 1 and the TPU inner plastic-enclosed shell 2 are both provided with corresponding other holes that are consistent with the mobile phone.

[0032] In one embodiment, Figures 1 to 3 As shown, the button 3 on the TPU inner plastic-encapsulated shell 2 passes through the button hole 4 on the PC outer fully-encapsulated shell 1 to the outside.

[0033] In one embodiment, Figures 1 to 3 As shown, the top of the TPU inner plastic shell 2 is folded outward to form a top limit for the PC outer full-enclosed shell 1, and the folding width is aligned with the PC outer full-enclosed shell 1;

[0034] The bottom of the TPU inner plastic casing 2 is folded inwards to form a support for the bottom of the mobile phone.

[0035] In one embodiment, Figures 1 to 3 As shown, a camera hole 5 corresponding to the mobile phone camera is opened at the bottom of the PC outer full-enclosed shell 1.

[0036] In one embodiment, Figures 1 to 3 As shown, the product design is a PC+TPU secondary injection molding design. First, the PC shell is injection molded, and then the PC shell is buckled into the mold for TPU secondary injection molding. The high-temperature fusion of TPU and PC is used to achieve an integrated effect, which is convenient for disassembly. TPU surrounds the mobile phone to protect it from falling. At the same time, because TPU itself has toughness, it is easy to assemble and disassemble the mobile phone and has a drop-proof function. The back and sides are designed with PC hard glue to ensure the protection of the mobile phone while minimizing the area of ​​TPU contact during use by the consumer's hand, greatly reducing the yellowing problem during use. The button design uses PC to connect together to distinguish it from other product designs, ensuring that there will be no deformation problems during production and use. The buttons use independent hardware or plastic buttons to ensure the independence of the buttons, the integrated design of the appearance, and the good feel of the button functions.

[0037] Obviously, the above embodiments are merely examples for the purpose of clear explanation, and are not intended to limit the implementation methods. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the implementation methods here. The obvious changes or modifications derived therefrom are still within the scope of protection of the invention of the utility model.

Claims

1. A mobile phone case using TPU+PC secondary injection molding, characterized in that: include: PC outer full-cover shell, TPU inner plastic shell and buttons; The PC outer full-enclosed shell adopts a full-enclosed structure, and the PC outer full-enclosed shell cooperates with the TPU inner rubber-enclosed shell so that the PC outer full-enclosed shell is wrapped around the outside of the TPU inner rubber-enclosed shell. The TPU inner rubber-enclosed shell adopts a surrounding wrapping structure and is wrapped around the frame and bottom of the mobile phone.

2. According to claim 1, a mobile phone case using TPU+PC secondary injection molding, characterized in that: The button is made of metal or plastic.

3. According to claim 1, a mobile phone case using TPU+PC secondary injection molding, characterized in that: The buttons are located on the TPU inner plastic-encapsulated shell and are consistent with the button positions on the mobile phone. The PC outer fully-encapsulated shell is provided with button holes corresponding to the buttons on the TPU inner plastic-encapsulated shell.

4. According to claim 1, a mobile phone case using TPU+PC secondary injection molding, characterized in that: The PC outer full-enclosed shell and the TPU inner rubber-enclosed shell are both provided with corresponding other holes that are consistent with the mobile phone.

5. According to claim 3, a mobile phone case using TPU+PC secondary injection molding is characterized in that: The buttons on the TPU inner plastic-encapsulated shell pass through the button holes on the PC outer fully-encapsulated shell to the outside.

6. The mobile phone case using TPU+PC secondary injection molding according to claim 1, characterized in that: The top of the TPU inner rubber-encapsulated shell is folded outward to limit the top of the PC outer full-encapsulated shell, and the folding width is aligned with the PC outer full-encapsulated shell; The bottom of the TPU inner rubber-encapsulated shell is folded inwards to form a support for the bottom of the mobile phone.

7. The mobile phone case using TPU+PC secondary injection molding according to claim 1, characterized in that: The bottom of the PC outer all-inclusive shell is provided with a camera hole corresponding to the mobile phone camera.

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