WO2021128425A1

WO2021128425A1 - Light and thin flat protective case for portable device

Info

Publication number: WO2021128425A1
Application number: PCT/CN2019/130657
Authority: WO
Inventors: 李庆远
Original assignee: 李庆远
Priority date: 2019-12-22
Filing date: 2019-12-31
Publication date: 2021-07-01

Abstract

A light and thin flat protective case for a portable device, comprising a bottom surface and a plurality of side surfaces; the adjacent side surfaces of every two protective cases is adjacent to a corner portion of a display screen of the portable device, and has an extension structure for protecting the corner of the display screen; the bottom surface of the protective case is provided with an opening, so as to facilitate the direct touch of a user with the palm; and the extension structure covers and is parallel to the display screen of the portable device, and is made of an elastic material, so as to buffer the damage caused to the display screen by a strike or other external forces. By enhancing the protection to corners of the screen of a device, the probability of screen breaking due to device falling or other external forces is reduced.

Description

Thin and light portable equipment flat protective cover

Related application

This application claims the priority of the patent application number US 16,724,321 filed in the United States on December 22, 2019, the entire content of which is incorporated herein by reference.

Field of invention

The invention relates to a thin and light plane protective cover for portable equipment, in particular to a protective cover that reduces the probability of screen breakage due to equipment falling or other external forces by strengthening the protection of the corners of the screen of the device.

Background technique

The most common and commonly used protective cover for portable devices, of course, is a mobile phone protective cover, which is usually made of Thermoplastic Polyurethane (TPU). Before the appearance of iPhone X, there was enough distance between the screen and the edge of the phone, and the ordinary protective cover could protect the phone screen. However, with the increasing proportion of mobile phone screens, the risk of broken screens due to falling mobile phones is getting higher and higher.

With the increasing demand for lighter and thinner smartphones in the market, and the advancement of mobile phone manufacturing processes, the integration of mobile phone screens is also getting higher and higher. Now to replace the mobile phone screen, special equipment is required, so the cost is very high. The cost can usually reach 1/3 of the price of a mobile phone, causing users to be forced to buy a new mobile phone, resulting in a great waste of resources and the environment and more pollution.

The US invention patent US 8,909,309 discloses a mobile device protective cover with a buffering device, but it is used to protect the corners of the adjacent sides of the mobile device, and cannot effectively protect the front screen.

The US invention patent US 9,247,795 implements an electronic device protective cover with an energy-absorbing structure, but its energy-absorbing structure is mainly used to protect the back panel of a mobile phone, and it cannot effectively avoid broken screens.

The US invention patent US 9,553,629 describes a set of protective clips that can be firmly installed on the edges and corners of portable electronic devices without the help of tools or glue. However, for high-screen-to-body mobile phones, tablets, and laptops with special-shaped screens, fixed protection The space occupied by the folder is too large, which will affect the user's use.

In addition, the back shells of modern mobile phones are generally made of glass, metal and other more beautiful materials, but they cannot be used without wearing a cover. This is a bad wind brought by Apple, adding some beautiful but meaningless structures. The beautiful glass and metal back shell that can never touch the user's palm, and then the protective cover is inserted. The difference between directly using the plastic back shell: redundant The new glass and metal increase the weight of the mobile phone, and the mobile phone protective cover makes the mobile phone thicker and wider, which seriously reduces the feel of the mobile phone.

The user needs the freedom to choose the shell material. If the manufacturer can't provide it, at least the beautiful glass and metal back shell can really play a role and improve the user's feel. However, if it is used without a mobile phone case, the toughened film with insufficient size cannot fully protect the front screen of the mobile phone, and the risk of broken screen becomes extremely high. Even the mobile phone case cannot fully protect the screen. When one of the four corners of the mobile phone display is affected The impact will cause a broken screen.

What users need is a mobile phone case that is light and thin and can fully protect the screen, while at the same time enabling all or part of the back cover of the mobile phone to be in contact with the palm of the user.

Summary of the invention

The mobile phone protective film can reduce the risk of broken screen to a certain extent. However, due to the problem of manufacturing accuracy and the need to avoid the protective film from being rolled up and falling off, the common protective film is usually much smaller than the mobile phone screen. The effect of scraping. Then, a mobile phone case that can fully protect the screen can circumvent the manufacturing accuracy problem. The embodiment of the present invention provides a protective cover:

·The protective cover includes a bottom surface and a side surface, and the corners of the side have an extended structure

The extended structure can be perpendicular to the screen of the portable device

The extended structure can fit the device screen in the corner of the adjacent side of the portable device

·The bottom of the protective cover has an opening, and only the part close to the side extends so as to be fixed to the mobile phone

·The part of the bottom surface of the protective cover that extends from the side can cover the area that needs to be protected such as the camera, so that the camera protruding from the back of the phone will not protrude from the protective cover

However, it should be understood that the content of the present invention may not include all aspects and embodiments of the present invention. The content of the present invention is not meant to be restricted or restricted in any way, and the present invention disclosed herein will be understood by one of the following: The technical staff includes obvious improvements and modifications.

Description of the drawings

Fig. 1 is a perspective view of an exemplary embodiment of the present invention, showing that the four corners of the protective cover protect the corners of the screen of the portable device, and the protective layer is parallel to the screen. The part of the bottom opening close to the side has a frame-like extension so as to be fixed to the mobile phone and the protective cover is not easy to fall off.

Fig. 2 is a perspective view of another exemplary embodiment of Fig. 1. The corners of the part of the bottom opening close to the side surface have extensions so as to be fixed to the mobile phone, and the protective cover is not easy to fall off.

Fig. 3 is an exploded view of another exemplary embodiment of the present invention, showing that the four corners of the protective cover protect the corners of the screen of the portable device, and the protective layer "protrudes" from the screen. The part of the bottom opening close to the side has a frame-like extension so as to be fixed to the mobile phone and the protective cover is not easy to fall off.

Fig. 4 is a perspective view of another exemplary embodiment of Fig. 3, where the corners of the part of the bottom opening close to the side surface have extensions so as to be fixed to the mobile phone and the protective cover is not easy to fall off.

Fig. 5 is an exploded view of another exemplary embodiment of the present invention, showing that the four corners of the protective cover protect the corners of the screen of the portable device, and the protective layer is an airbag covering the corners. The part of the bottom opening close to the side has a frame-like extension so as to be fixed to the mobile phone and the protective cover is not easy to fall off.

Fig. 6 is a perspective view of another exemplary embodiment of Fig. 5, the corners of the part of the bottom opening close to the side surface have extensions for fixing with the mobile phone, and the protective cover is not easy to fall off.

In accordance with general practice, the various described features are not drawn to scale, and the emphasis is on highlighting features relevant to the present disclosure. In all the drawings, the same reference numerals denote the same elements.

Detailed ways

The present invention will now be described more fully hereinafter. However, the present invention can be implemented in many different forms and should not be construed as being limited to the embodiments set forth herein. Hopefully, these embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the present invention to those skilled in the art.

It should be understood that various changes can be made to the function and arrangement of elements without departing from the spirit and scope set forth in the appended claims. Therefore, the embodiments are examples or implementations of the present invention, rather than the only implementations. The various appearances of "one embodiment," "an embodiment," or "some embodiments" do not necessarily all refer to the same embodiment. Although various features of the invention may be described in the context of a single embodiment, the features may also be provided individually or in any suitable combination. Conversely, although the invention may be described herein in the context of separate embodiments for the sake of clarity, the invention may also be implemented in a single embodiment or any combination of embodiments.

Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as commonly understood by those of ordinary skill in the art to which the present invention belongs. It will be further understood that terms such as those defined in commonly used dictionaries should be interpreted as having meanings consistent with their meanings in the context of related technologies and the present disclosure, and will not be interpreted as idealized or excessive The formal meaning, unless explicitly defined as such in this article.

Reference terms such as "bottom" and "side" are intended to be used in describing specific features, structures or orientations of elements in embodiments of the invention. Obviously, such directional terms regarding the actual use of the device have no specific meaning, because the device can be used by a user or multiple users in multiple directions.

In the following, the embodiments of the present invention will be described in detail by combining the drawings in 1 to 6, wherein the depicted elements are not necessarily shown to scale, and the same or similar terms are attached through several views and the same or similar terms. Figure labels designate the same or similar components.

The attached picture shows the mobile phone protective cover. However, the embodiments of the present invention are not limited to the application of mobile phone protective sleeves. For example, other electronic devices including display screens, tablets and laptops can also use the protective cover described below.

The most common display screen for portable devices is liquid crystal (LCD), which can be divided into a protective layer, a touch layer, and a display layer. The protective layer is usually tempered glass (such as gorilla, sapphire glass, etc.). After the emergence of the special-shaped screen led by iPhone X, the risk of mobile phone being broken due to falling or other external forces is increasing. In most cases, only the tempered glass of the protective layer of the LCD screen is damaged, and it is usually caused by impacts on the four corners of the screen. Then, as long as the four corners of the display are protected, the risk of broken screen can be greatly reduced.

The US invention patents US 8,909,309 and US 9,247,795 respectively protect the corners of the adjacent sides of the device and the back panel of the mobile phone. The back panel is the most resistant part of the portable device. The corners of the adjacent sides are fully protected by the protective cover. In addition, the phone shell can also absorb impact energy.

The common mobile phone cases in the market can be divided into bottom and side. In order to pursue a rounded feel in modern smartphones, the bottom and sides are usually curved. Then, there are two ways to protect the four corners of the display: to avoid direct impact on the four corners of the display, or to buffer the damage caused by the impact.

The former can be extended outwards at the side of the protective cover adjacent to the four corners of the display screen ("inner" is the space for the protective cover to accommodate the mobile phone, and "outward" is the direction facing the user), so that when the mobile phone falls or is impacted by other external forces , The four corners of the display screen will not be impacted, unless the extension part has a great deformation, so that the four corners of the display screen are also impacted by the ground/impact object.

The latter can extend horizontally (parallel to the display screen of the portable device) where the sides of the protective cover are adjacent to the four corners of the display. The extended part can be made of elastic material, so that when the phone is dropped or is impacted by other external forces, the four corners of the display are not Will be directly impacted, and the elasticity of the extension can be cushioned to increase the impact time. According to the law of conservation of momentum, for the same momentum, the longer the impact time, the smaller the force generated by the impact and the smaller the damage to the four corners of the display.

Furthermore, these extensions can include one or more layers of airbags to increase their cushioning capacity. The airbags can even be designed to have a fragile structure at a certain location. After an impact, gas can leak through this structure, further increasing the redundancy of absorbing impact energy. degree. The faster the exhaust speed, the stronger the buffer capacity.

To make all or part of the back panel of the mobile phone contact with the palm of the user in order to feel, it is necessary to have an opening on the bottom surface of the protective cover. For the metal back cover, because the metal has sufficient ductility, when the back cover of the mobile phone is hit due to a fall, it will cause the metal back cover to dent, but it will not affect the internal structure of the mobile phone. For the back cover made of glass, there is a risk of the back cover breaking. However, a broken glass back cover will not affect the internal structure of the phone. If the internal structure of the mobile phone is damaged, the protective sleeve cannot protect the mobile phone either. In addition, the first embodiment of the present invention (Figure 1/2 and Figure 5/6) can also be used on the back side to extend the protective glass rear shell horizontally through the four corners of the back side. The second option (Figure 3/4) will affect the feel.

In addition, for portable devices with double-sided screens (for example, there are screens on the back of mobile phones), the above methods can also be applied to protect the corners of the screen. In addition, these methods can also be used to protect the glass backplanes of portable devices.

The above description is only an embodiment of the present invention, and is not intended to limit the scope of the present invention. Various changes and modifications according to the claims and specification of the present disclosure are still within the scope of the claimed invention. In addition, each embodiment and claims may not include all the advantages or characteristics disclosed. In addition, the abstract and title are only used to facilitate searching of patent documents and are not intended to limit the scope of the claimed invention in any way.

Claims

A protective cover for a portable device, the protective cover comprising a bottom surface and a plurality of side surfaces, and having the following characteristics: every two adjacent side surfaces of the protective cover, adjacent to the corner of the display screen of the portable device, have an extended structure In order to protect the corners of the display screen; the bottom surface of the protective cover has openings for direct touch with the palm of the user; the extension structure covers and is parallel to the display screen of the portable device, and is made of elastic material to cushion impact or other Damage to the display screen caused by external force.
A protective cover for a portable device, the protective cover comprising a bottom surface and a plurality of side surfaces, and having the following characteristics: every two adjacent side surfaces of the protective cover, adjacent to the corner of the display screen of the portable device, have an extension structure To protect the corners of the display screen; the bottom surface of the protective cover has openings for direct touch with the palm of the user; the extension structure covers and is parallel to the display screen of the portable device, and is made of elastic material to cushion impact or other Damage to the display screen caused by external force.
According to the extension structure of claim 2, each extension contains one or more airbags.
The airbag according to claim 3, which has one or more fragile positions, and when an impact is received, the fragile positions are destroyed, releasing internal gas.
A protective cover for a portable device, the protective cover comprising a bottom surface and a plurality of side surfaces, and having the following characteristics: every two adjacent side surfaces of the protective cover, adjacent to the corner of the display screen of the portable device, have an extension structure To protect the corners of the display screen; the bottom surface of the protective cover has openings for direct touch with the palm of the user; the extension structure covers and is parallel to the display screen of the portable device, and is made of elastic material to cushion impact or other Damage to the display screen caused by external force.
The extension structure of claim 5, each extension contains one or more airbags.