CN103974570A - Composite molded window protection structure and electronic device composed thereof - Google Patents

Abstract

The invention provides a composite forming window protection structure and an electronic device composed of the same, comprising a transparent window and an elastic buffering frame, wherein the elastic buffering frame is integrally formed around the periphery of the transparent window by adopting an in-mold injection mode, the top height of the elastic buffering frame is lower than the top surface of the transparent window, and the bottom of the elastic buffering frame extends towards the bottom surface of the transparent window; the elastic buffering frame has the elastic buffering function of preventing the transparent window from being broken due to side impact; in addition, the transparent window and the bottom of the elastic buffer frame can also be combined with a display, a circuit board and a bottom shell to form the electronic device with the composite forming window protection structure.

Description

Composite molded window protection structure and electronic device composed thereof

technical field

The present invention relates to an electronic device composed of composite molded window protection structure, in particular to an elastic buffer protection structure which can prevent the window of the electronic device from being broken due to lateral impact, and to a portable electronic device.

Background technique

In recent years, due to the increasingly mature technology of liquid crystal displays and touch panels, portable electronic devices such as mobile phones, PDAs, GPS, NBs, e-books, and tablet computers currently on the market all have large-area image display windows. It can satisfy the user's enjoyment of visual images, and also provides an operating space that is favorable for controlling the electronic device by touch.

It is known that when using a portable electronic device, it is inevitable to collide with foreign objects or fall to the ground, especially when the impact position is mostly on the side of the electronic device when it falls to the ground, it is easy to cause scratches or scratches on the shell or window of the electronic device. Therefore, many users will additionally set a cushioning and anti-collision elastic protective cover on the outside of the electronic device to improve the anti-scratch and anti-collision capabilities of the electronic device. In addition, there is also a transparent protective film specially designed to protect the window on the market, which is mainly attached to the surface of the window to prevent foreign objects from scratching the surface of the window.

However, at present, the windows of electronic devices are getting bigger and bigger. If they are accidentally dropped on the ground, the windows may be broken. Although the aforementioned protective cover can cover the housing of the electronic device, its anti-collision and anti-drop capabilities are limited, especially It is aimed at the protection of the window, and there is little room for improvement to further enhance its anti-shatter ability. Although the above-mentioned transparent protective film can protect the window from being scratched, it is of no help to the damage caused by collision and falling to the ground .

The inventor has tried to injection mold the casing of the electronic device around the window, and align the top surface of the casing with the top surface of the window. However, during the injection molding process, it is not conducive to the positioning of the window in the mold, and it is easy to cause defects around the window due to glue overflow. In addition, although the shell is made of plastic material, it is a rigid support member, so the elastic cushioning ability for the window is not good.

In view of this, the inventor has developed the present invention based on his years of experience in the production, manufacture and design of portable electronic devices to improve the above-mentioned problems.

Contents of the invention

The object of the present invention is to provide an elastic buffer protection structure that can prevent the window of an electronic device from being damaged by side impact, and relates to a portable electronic device formed by using the protection structure, so as to overcome the above-mentioned prior art. The protective cover or protective film has poor anti-collision and fragmentation ability for the window. At the same time, it solves the problem that the window is not conducive to positioning during the traditional injection molding shell process, and it is easy to cause burrs around the window due to overflowing glue, as well as the traditional plastic shell. For problems such as poor elastic buffering capacity of the window.

In order to achieve the above object, the present invention provides a composite molded window protection structure, comprising:

a transparent window having a top surface and a bottom surface; and

An elastic buffer frame is integrally formed around the periphery of the transparent window by in-mold injection, the elastic buffer frame has a side portion surrounding the periphery of the transparent window, and the height of the top of the side portion is lower than that of the transparent window On the top surface of the window, the bottom of the elastic buffer frame is a bearing part, and the bearing part extends toward the bottom surface of the transparent window, so that the elastic buffer frame has an elastic buffer function to slow down the side impact of the transparent window.

Through the above, after the elastic buffer frame is in-molded on the periphery of the transparent window, it can be firmly surrounded and combined with the periphery of the transparent window, so that the periphery of the transparent window has elastic buffer capacity through the elastic buffer frame, and the bottom of the elastic buffer frame moves toward the transparent window. The direction of the bottom surface is extended, so that the elastic buffer frame covers the sides and the periphery of the bottom surface of the transparent window to increase the bonding area, thereby increasing the bonding force between the elastic buffer frame and the transparent window; in addition, because the top surface of the transparent window is high On the top of the side part of the elastic buffer frame, it is not only conducive to the positioning of the transparent window in the mold, but also can solve the problem of poor molding such as burrs caused by overflowing glue during the injection molding process.

According to the above-mentioned main structural features, the transparent window is a touch-sensitive window or a non-touch-type window. When the touch-sensitive window is implemented, a capacitive or resistive touch circuit layer is further provided on the bottom surface thereof.

According to the above main structural features, the transparent window is made of a material that allows visible light to pass through, and the material that allows visible light to pass through includes but is not limited to glass, polycarbonate (PC) or polymethyl methacrylate (PMMA) .

According to the above main structural features, the elastic buffer frame is made of elastic plastic material, which includes but not limited to silicone, thermoplastic rubber (TPE) or thermoplastic polymer resin (TPU).

According to the above-mentioned main structural features, the cross-sectional outer profile of the side of the transparent window is in various bending shapes that are vertical, inclined or protruding outward.

In addition, the present invention is an electronic device composed of composite molded window protection structure, comprising:

a bottom case with an accommodating tank open upward;

A circuit board is arranged in the containing groove;

A display is arranged in the receiving slot and above the circuit board;

a transparent window arranged on the top of the display, and the transparent window has a top surface and a bottom surface; and

An elastic buffer frame is integrally molded around the periphery of the transparent window by in-mold injection, and combined with the top of the accommodating groove, the height of the top of the elastic buffer frame is lower than the top surface of the transparent window, and the bottom of the elastic buffer frame is The direction of the bottom of the transparent window extends, so that the elastic buffer frame has an elastic buffer function for slowing down the transparent window from side impact.

Through the above, the elastic buffer frame can be firmly connected between the transparent window and the housing groove of the bottom case. Since the elastic buffer frame has buffer elasticity, the transparent window is actually elastically suspended on the top of the housing groove. Therefore, the elastic buffer frame can absorb most of the impact force on the side of the electronic device, thereby greatly improving the lateral impact resistance of the transparent window, and the bottom of the elastic buffer frame extends toward the bottom of the transparent window, thereby greatly improving the bonding force. The top surface of the transparent window is higher than the top of the elastic buffer frame, which is conducive to positioning the transparent window in the mold, and helps to solve the problem of poor molding such as burrs caused by overflowing glue during the injection molding process.

According to the above main structural features, the bottom of the elastic buffer frame has an adhesive surface that can be glued to the top of the accommodating groove of the bottom case, or a buckle portion that can be fastened to the top of the accommodating groove of the bottom case.

According to the above-mentioned main structural features, the transparent window is a touch-sensitive window or a non-touch-type window. When the touch-sensitive window is implemented, a capacitive or resistive touch circuit layer is further provided on the bottom surface thereof.

According to the above main structural features, the transparent window is made of a material that allows visible light to pass through, and the material that allows visible light to pass through includes but is not limited to glass, polycarbonate (PC) or polymethyl methacrylate (PMMA) .

According to the above main structural features, the elastic buffer frame is made of elastic plastic material, which includes but not limited to silicone, thermoplastic rubber (TPE) or thermoplastic polymer resin (TPU).

According to the above-mentioned main structural features, the cross-sectional outer profile of the side of the transparent window is in various bending shapes that are vertical, inclined or protruding outward.

According to the above main structural features, the electronic device includes but not limited to mobile phone, PDA, GPS, NB, e-book or tablet computer.

According to the above-mentioned main structural features, a battery is provided between the circuit board and the accommodating tank; this embodiment is especially suitable for the battery built into the electronic device, and the bottom case and the battery of the electronic device cannot be disassembled and replaced by the consumer. models.

According to the above main structural features, the bottom of the bottom case is provided with a battery chamber and a battery cover which can open/close the battery chamber, and a battery is arranged in the battery chamber; this embodiment is especially suitable for the battery pack connected to the electronic device. There is a built-in battery room, and the battery cover can be disassembled by the consumer to replace the battery.

Compared with the prior art, the present invention has the following advantages:

1. The elastic buffer frame is combined around the periphery of the transparent window, so that the periphery of the transparent window can generate elastic buffer capacity through the elastic buffer frame.

2. The design of the top height of the elastic buffer frame is lower than the top surface of the transparent window, which is conducive to the positioning of the window in the mold, and solves the problem of poor molding such as burrs caused by overflowing glue during the injection molding process.

3. The bottom of the elastic buffer frame is designed to extend toward the bottom of the transparent window, so as to increase the bonding area and bonding force between the elastic buffer frame and the transparent window.

4. The transparent window can be elastically suspended on the top of the accommodating tank through the elastic buffer frame, so that the elastic buffer frame can absorb most of the impact force on the side of the electronic device, thereby greatly improving the lateral impact resistance of the transparent window.

5. The part of the bottom of the elastic buffer frame extending toward the bottom of the transparent window can buffer and isolate the transparent window from the inner wall of the accommodating tank of the bottom case.

However, in order to clearly and fully disclose the present invention, and to enumerate the illustrations of preferred implementations, to describe in detail its implementation as follows:

Description of drawings

Fig. 1 reveals the perspective view of composite molded window protection structure of the present invention;

Figure 2 reveals a perspective view of an electronic device composed of a composite molded window protection structure of the present invention;

Fig. 3 reveals the three-dimensional exploded view of Fig. 2;

Fig. 4 reveals the partial sectional view of Fig. 2;

Fig. 5 discloses an additional embodiment cutaway view of Fig. 4;

Fig. 6 discloses a sectional view of an additional implementation of the transparent window and the elastic buffer frame in Fig. 4;

Fig. 7 discloses another additional implementation type sectional view of the transparent window and the elastic buffer frame in Fig. 4;

Fig. 8 reveals the sectional view of yet another additional embodiment of the transparent window and the elastic buffer frame in Fig. 4;

Fig. 9 reveals another additional implementation type sectional view of the transparent window and the elastic buffer frame in Fig. 4;

FIG. 10 discloses a sectional view of yet another additional implementation of the transparent window and the elastic buffer frame in FIG. 4 .

Explanation of reference signs: 10, 10a, 10b, 10c, 10d, 10e, 10f-transparent window; 11-top surface; 12, 12a-bottom surface; 13, 13a, 13b, 13c, 13d, 13e, 13f-side surface; 20 , 20a, 20b, 20c, 20d, 20e, 20f-elastic buffer frame; 21-side part; 22-loading part; 23-adhesive surface; 24a-buckle part; 30-touch circuit layer; 40-display; 50-circuit board; 60, 60a-bottom case; 61, 61a-accommodating groove; 62a-ring groove; 63a-battery chamber; 64a-battery cover; 70-adhesive layer; 80-battery.

Detailed ways

Please refer to FIG. 1, which reveals a perspective view of the composite molding window protection structure of the present invention, and illustrates the composite molding window protection structure of the present invention with reference to FIGS. 3 to 10, including a transparent window 10 and an elastic buffer frame 20, wherein:

The transparent window 10 has a top surface 11 and a bottom surface 12 ; the elastic buffer frame 20 is integrally formed around and combined with the periphery of the transparent window 10 by means of injection molding.

The elastic buffer frame 20 has a side portion 21 surrounding the outer surface 13 of the transparent window 10, and the height of the top of the side portion 21 is lower than the top surface 11 of the transparent window 10, and the bottom of the elastic buffer frame 20 is a The supporting portion 22 extends toward the bottom surface 12 of the transparent window 10 , so that the elastic buffer frame 20 has an elastic buffering effect for slowing down the side impact of the transparent window 10 .

Through the above, after the elastic buffer frame 20 is in-molded on the periphery of the transparent window 10 , it can be firmly surrounded and combined with the periphery of the transparent window 10 , so that the periphery of the transparent window 10 has elastic buffer capacity through the elastic buffer frame 20 .

Wherein, since the bearing part 22 at the bottom of the elastic buffer frame 20 extends toward the bottom surface 12 of the transparent window 10, the elastic buffer frame 20 covers the side 13 and the periphery of the bottom surface 12 of the transparent window 10 to increase the bonding area, thereby increasing The elastic buffers the binding force between the frame 20 and the transparent window 10 .

It is worth mentioning that since the top surface 11 of the transparent window 10 is higher than the top of the side portion 21 of the elastic buffer frame 20, it is not only beneficial to the positioning of the transparent window 10 in the mold, but also can solve the problem of glue overflow during the injection molding process. Bad molding problems such as burrs.

In a more specific implementation, the composite molding window protection structure of the present invention also includes:

In practice, the transparent window 10, 10a is a touch-type window or a non-touch-type window. When the touch-type window is implemented, a capacitive or resistive touch circuit layer 30 can be further arranged on the bottom surface 12a of the transparent window 10a. The touch circuit layer 30 has a touch sensing circuit pattern formed by carbon nanotube film, indium tin oxide film or other light-transmitting conductive films with similar properties.

In practice, the transparent window 10 is made of a material that allows visible light to pass through, including but not limited to glass, polycarbonate (polycarbonate, PC) or polymethylmethacrylate (Polymethylmethacrylate, PMMA).

In practice, the elastic buffer frame 20 can be made of elastic plastic material, including but not limited to silicone, thermoplastic rubber (TPE) or thermoplastic polyresin (TPU).

In practice, the cross-sectional outer profile of the side 13 of the transparent window 10 can be vertical as shown in FIG. 4 to facilitate the forming and processing of the transparent window 10, or as shown in FIGS. , 13b can also be inclined to increase the bonding area and bonding force between the elastic buffer frame 20a, 20b and the transparent window 10a, 10b side 13a, 13b; especially as shown in Figure 7 to Figure 10, the The cross-sectional outer contours of the sides 13c, 13d, 13e, 13f of the transparent windows 10c, 10d, 10e, 10f are various bending shapes protruding outwards, which can increase the elasticity of the sides 13c, 13d, 13e, 13f of the transparent windows. One of various implementations of the bonding area between the buffer frames 20c, 20d, 20e, 20f, so that the elastic buffer frames 20c, 20d, 20e, 20f can be more firmly combined with the transparent windows 10c, 10d, 10e, 10f.

Please refer to FIG. 2 , which reveals a perspective view of the electronic device composed of the composite molded window protection structure of the present invention, and with reference to FIGS. 3 to 10 to illustrate the composite molded window protection structure of the present invention. Circuit board 50, a display 40, a transparent window 10 and an elastic buffer frame 20, wherein:

The top of the bottom case 60 is provided with an accommodating groove 61 open upward; the circuit board 50 is disposed in the accommodating groove 61 of the bottom case 60 .

The display 40 can be a liquid crystal display (LCD). The display 40 is disposed in the receiving groove 61 of the bottom case 60 , and the display 40 is located above the circuit board 50 .

The transparent window 10 is arranged on the top of the display 40, and the transparent window 10 has a top surface 11 and a bottom surface 12; Combined with the top of the accommodating groove 61 of the bottom case 60 .

The height of the top of the elastic buffer frame 20 is lower than the top surface 11 of the transparent window 10, and the bottom of the elastic buffer frame 20 extends toward the bottom surface 12 of the transparent window 10, so that the elastic buffer frame 20 has an elastic buffer effect for slowing down the side impact of the transparent window 10 .

Through the above, the elastic buffer frame 20 can be firmly connected between the transparent window 10 and the inner wall of the accommodating groove 61 of the bottom case 60. Since the elastic buffer frame 20 has buffer elasticity, the transparent window 10 is actually elastically suspended on the Between the inner walls of the top of the accommodating groove 61 ; in this way, the elastic buffer frame 20 can absorb most of the impact force on the side of the electronic device, thereby greatly improving the lateral impact resistance of the transparent window 10 .

In addition, the bearing part 22 at the bottom of the elastic buffer frame 20 extends toward the bottom surface 12 of the transparent window 10, thereby greatly improving the bonding force between the elastic buffer frame 20 and the transparent window 10, and can buffer and isolate the transparent window 10 from the bottom. The inner wall of the accommodating groove 61 of the shell 60 .

At the same time, the top surface 11 of the transparent window 10 is higher than the top of the side portion 21 of the elastic buffer frame 20, which is conducive to positioning the transparent window 10 in the mold, and can solve the problem of poor molding such as burrs caused by overflowing glue during the injection molding process. .

In a more specific implementation, the electronic device composed of the composite molded window protection structure of the present invention also includes:

In practice, the bottom of the elastic buffer frame 20 is provided with an adhesive surface 23 that can be bonded to the top inner wall surface of the accommodating groove 61 of the bottom case 60, and the adhesive surface 23 of the elastic buffer frame 20 is connected to the top inner wall surface of the accommodating groove 61 They can be bonded to each other through an adhesive layer 70 .

Alternatively, a ring groove 62a can be provided on the inner wall of the receiving groove 61a of the bottom case 60a, and a buckle portion 24a can be snapped into the ring groove 62a at the top of the receiving groove 61a of the bottom case 60a at the bottom of the elastic buffer frame 20a.

In practice, the aforementioned electronic devices may include but not limited to mobile phones, PDAs, GPS, NBs, e-books, tablet computers and the like. Cooperating with these electronic device embodiments, when the present invention is implemented, as shown in FIG. The circuit board 50 and the display 40 are used to supply power to the circuit board 50 and the display 40; this embodiment is especially suitable for the battery 80 built in the electronic device, and the bottom shell 60 and the battery 80 of the electronic device are not available for consumers to use. Disassemble the replacement model.

Or as shown in Figure 5, the bottom of the bottom case 60 is provided with a battery chamber 63a open downwards and a battery cover 64a that can open/close the battery chamber 63a, the battery chamber 63a is provided with a battery 80, the battery 80 Electrically connect the circuit board 50 and the display 40, and supply power to the circuit board 50 and the display 40; this embodiment is especially suitable for the battery 80 to be assembled in the preset battery chamber 63a of the electronic device, and the battery The cover 64a can be disassembled by consumers to replace the battery 80 .

As for the composition and implementation of other components, such as various shapes of the cross-sectional outer contours of the sides of the transparent window, they are all the same as the above-mentioned embodiments, and will not be repeated here.

The above is only a preferred embodiment of the present invention, and should not limit the scope of the present invention with this, all simple equivalent changes and modifications made according to the patent scope of the present invention and the content of the description of the invention are still the same. It is hereby declared that it is within the scope covered by the patent of the present invention.

Claims (10)

1. A composite molding window protection structure, characterized in that it comprises: a transparent window having a top surface and a bottom surface; and An elastic buffer frame is formed integrally around the periphery of the transparent window by in-mold injection, the elastic buffer frame has a side portion surrounding the periphery of the transparent window, and the height of the top of the side portion is lower than that of the transparent window The bottom surface of the elastic buffer frame is a bearing part, and the bearing part extends toward the bottom surface of the transparent window. 2 . The composite molded window protection structure according to claim 1 , wherein the transparent window is a touch-sensitive window or a non-touch-sensitive window. 3 . 3. The composite molding window protection structure according to claim 1, wherein the transparent window is made of a material that allows visible light to pass through, and the material that allows visible light to pass through includes glass, polycarbonate or polyacrylonitrile methyl acrylate. 4 . The composite molded window protection structure according to claim 1 , wherein the elastic buffer frame is made of elastic plastic material, and the elastic plastic material includes silica gel, thermoplastic rubber or thermoplastic polymer resin. 5. The composite molded window protection structure according to claim 1, characterized in that, the cross-sectional outer profile of the side of the transparent window is in a vertical, inclined or outwardly protruding bent shape. 6. An electronic device composed of a composite molded window protection structure, characterized in that it comprises: a bottom case with an accommodating tank open upward; a circuit board arranged in the containing slot; A display is arranged in the receiving slot and above the circuit board; a transparent window arranged on the top of the display, and the transparent window has a top surface and a bottom surface; and An elastic buffer frame is integrally molded around the periphery of the transparent window by in-mold injection, and combined with the top of the accommodating groove, the height of the top of the elastic buffer frame is lower than the top surface of the transparent window, and the bottom of the elastic buffer frame is The bottom surface of the transparent window extends. 7. The electronic device composed of composite molded window protection structure according to claim 6, characterized in that, the bottom of the elastic buffer frame has an adhesive surface that can be bonded to the top of the accommodating groove of the bottom case, or the elastic The bottom of the buffer frame has a buckle part that can be fastened to the top of the accommodating groove of the bottom case. 8 . The electronic device composed of the composite molded window protection structure according to claim 6 or 7 , characterized in that, the cross-sectional outer profile of the side of the transparent window is in a vertical, inclined or outwardly protruding bent shape. 9 . The electronic device composed of the compound-molded window protection structure according to claim 6 or 7 , wherein a battery is disposed between the circuit board and the accommodating groove. 10 . 10. The electronic device composed of composite molded window protection structure according to claim 6 or 7, characterized in that, the bottom of the bottom case is provided with a battery chamber and a battery cover which can open/close the battery chamber, the battery There is a battery inside.