Magnetic back film

Abstract

The utility model provides a magnetic back film, which comprises a back film body, one side of the back film body is provided with a bonding surface bonded with a mobile phone, one side of the bonding surface of the back film body is provided with a mounting groove, a magnetic induction sheet is arranged in the mounting groove, the same side of the magnetic induction sheet and the back film body is provided with a bonding layer, and the bonding layer is provided with a magnetic induction layer. By arranging the magnetic back film, a mobile phone shell is not required to be used, and the magnetic induction sheet is arranged in a hidden manner, so that a mobile phone can be positioned during wireless charging, and the wireless charging effect can be improved.

Description

Technical Field

[0001] This application relates to the field of mobile phone back films, and more specifically, to a magnetic back film. Background Technology

[0002] With the continuous development of society, mobile phones have become an indispensable item in people's daily lives, which has promoted the development of mobile phone protection and decoration products. As people's needs continue to improve, they are also raising their functional requirements for such products.

[0003] For example, mobile phones now need to be wirelessly charged, so they need to have a magnetic function to facilitate better positioning during wireless charging. However, most mobile phone cases on the market currently have a magnetic function, which means that a magnetic strip is installed on the mobile phone case, which cannot meet the needs of people who are not used to using mobile phone cases.

[0004] Magnetic back films also exist on the market, such as the one disclosed in CN 213213526 U. The magnetic back film includes a back film body and a magnet assembly. The magnet assembly is disposed on the back film body. The magnet assembly magnetically engages with a first magnetic element disposed on an electronic device to cover the back of the electronic device. The magnetic back film is detachably connected to the electronic device. The magnetic back film has a simple structure and a stylish design. The magnetic back film can be designed in multiple styles. The detachable and replaceable design solves the problem that the back film cannot be disassembled and used multiple times.

[0005] In the above structure, although magnetic attraction is used to achieve the purpose of magnetic attraction, the actual technical problem solved by this solution is to enable the back film to be disassembled and reused multiple times. That is, the purpose of magnetic attraction is to enable the back film to be detached from the mobile phone, and it cannot achieve the purpose of ensuring the positioning of the mobile phone and enhancing the charging effect during wireless charging.

[0006] Therefore, it is necessary to improve the existing magnetic back film to overcome the above-mentioned defects. Utility Model Content

[0007] The main purpose of this application is to provide a magnetic back film. By setting a magnetic back film, not only is there no need to use a phone case, but the magnetic strip is also set in a hidden way, which can not only locate the phone during wireless charging, but also improve the wireless charging effect.

[0008] To achieve the above objectives, in a first aspect, this application provides a magnetic back film, including a back film body, one side of which has an adhesive surface for bonding with a mobile phone, and a mounting groove is formed on one side of the adhesive surface of the back film body. A magnetic attracting sheet is disposed in the mounting groove, and the magnetic attracting sheet and the back film body have an adhesive layer on the same side.

[0009] Optionally, the adhesive surface is an adhesive layer.

[0010] Optionally, the adhesive layer is an adhesive layer.

[0011] Optionally, the back film body comprises a bottom layer and an outer layer fixed on the bottom layer, the bottom layer is provided with a through hole, and the magnetic sheet is located in the through hole.

[0012] Optionally, the bottom layer is adhesively fixed with the outer layer.

[0013] Optionally, the thickness of the back film body is 0.38-0.82mm.

[0014] Optionally, the thickness of the magnetic sheet is 0.3-0.6mm.

[0015] Optionally, the mounting groove is circular.

[0016] Optionally, the magnetic sheet is in the shape of a closed ring or a ring with a notch.

[0017] Optionally, the magnetic sheet is made of metal.

[0018] Compared with the prior art, the magnetic back film has the beneficial effects that the magnetic sheet is hidden in the back film of the mobile phone, so that the mobile phone can be positioned when wireless charging, and the magnetic sheet can significantly improve the charging efficiency and stability by enhancing the magnetic field, concentrating the magnetic force lines and reducing interference. BRIEF DESCRIPTION OF DRAWINGS

[0019] The drawings constituting a part of the present application are used to provide a further understanding of the present application, so that other features, objects and advantages of the present application become more apparent. The illustrative embodiment drawings of the present application and their descriptions are used to explain the present application, and do not constitute an improper limitation on the present application. In the drawings:

[0020] Figure 1 is a sectional view of the present application (embodiment one);

[0021] Figure 2 is a schematic view of the back film body (embodiment one);

[0022] Figure 3 is a sectional view of the present application (embodiment two);

[0023] Figure 4 is a schematic view of the present application (embodiment two);

[0024] Figure 5 is a schematic view of the magnetic sheet Figure 1 ;

[0025] Figure 6Magnet attracting sheet Figure 2 .

[0026] Wherein: 1, back film body, 2, magnet attracting sheet, 3, installation groove, 4, through hole, 5, bottom layer, 6, outer layer. DETAILED DESCRIPTION

[0027] In order to make the person skilled in the art better understand the scheme of the present application, the technical scheme in the embodiments of the present application will be described clearly and completely below in combination with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by the person skilled in the art without creative labor should belong to the scope of protection of the present application.

[0028] It should be noted that the terms "first", "second", and the like in the specification and claims of the present application and the above-described drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that the data thus used can be interchanged under appropriate circumstances, so that the embodiments of the present application described herein can be implemented. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion, for example, a process, method, system, product or device that includes a series of steps or units does not have to be limited to only those steps or units clearly listed, but can include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0029] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "lateral", "longitudinal", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0030] In addition, in addition to being used to indicate the orientation or positional relationship, the above-mentioned part of the terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For the person skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific circumstances.

[0031] In addition, the meaning of the term "a plurality of" should be two and more than two.

[0032] It should be noted that the embodiments in the present application and the features in the embodiments can be combined with each other without conflict. The present application will be described in detail below with reference to the drawings and in combination with the embodiments.

[0033] Embodiment one:

[0034] As shown in Figure 1 , Figure 2 , a magnetic back film, comprising a back film body 1, one side of the back film body 1 has an adhesive surface bonded with a mobile phone, the adhesive surface of the back film body 1 is provided with a mounting groove 3, the mounting groove 3 is provided with a magnetic sheet 2, the magnetic sheet 2 has an adhesive layer on the same side of the back film body 1, preferably, the adhesive surface is an adhesive layer, and the adhesive layer is a glue layer.

[0035] Preferably, the thickness of the back film body 1 is 0.3mm-0.6mm, the thickness of the magnetic sheet 2 is 0.3mm-0.6mm, the thickness of the magnetic sheet 2 is less than the overall thickness of the back film body 1, thereby achieving the purpose of hiding, preferably the single-layer film thickness of the back film body 1 is 0.38mm, and the glue thickness of the magnetic sheet 2 is 0.38mm.

[0036] As shown in Figure 5 , Figure 6 , the mounting groove 3 is circular, the magnetic sheet 2 is a closed circular ring or a circular ring with a notch, of course, the form of the mounting groove 3 is not limited to circular, the specific shape is determined according to the shape of the magnetic sheet 2, the purpose of the mounting groove 3 is only to accommodate the magnetic sheet 2, so that when the back film is attached to the mobile phone or electronic product, the thickness remains consistent, so that the magnetic sheet 2 does not protrude, thereby ensuring the aesthetic appearance.

[0037] In particular, in use, the magnetic sheet 2 can be placed in the mounting groove 3 first, since the mounting groove 3 is not a through hole 4, thereby achieving the purpose of hiding, and then the back film body 1 and the corresponding adhesive surface and adhesive layer of the magnetic sheet 2 are fixed on the back of the mobile phone, thereby fixing the back film body 1 and the magnetic sheet 2 respectively, the magnetic sheet 2 is not only fixed directly through the adhesive layer between the mobile phone, but also limited by the mounting groove 3 and fixed on the mobile phone through the adhesive surface of the back film body 1 itself, so that the integrity is stronger and more concealed.

[0038] Preferably, the magnetic sheet 2 is made of metal material, which can not only better position the mobile phone during wireless charging to prevent slipping, but also significantly improve the charging efficiency and stability by enhancing the magnetic field, concentrating the magnetic force lines and reducing interference during wireless charging.

[0039] In addition, a plurality of functional holes are provided on the back film body 1, the purpose of the functional holes is not to affect the use of the original functional elements on the mobile phone, such as the camera hole and the like, the shape and position of the functional holes are set according to different models of mobile phones, which will not be described here.

[0040] In addition, there are many kinds of magnetic accessories on the market: magnetic charger, magnetic power bank, magnetic light, magnetic support, magnetic air bag, magnetic card bag, magnetic tripod, the above accessories cannot be directly used for mobile phones without magnetic function, and the present application adopts a relatively thin back film to directly cooperate with the above accessories in a relatively light and thin way, which is convenient to use.

[0041] Embodiment two

[0042] As shown in Figure 3 , Figure 4 The difference between the embodiment one and the present embodiment is that the back film body 1 is not a whole, but a combination of two layers of back film, that is, the back film body 1 includes a bottom layer 5 and an outer layer 6 fixed on the bottom layer 5, the bottom layer 5 is provided with a through hole 4, the magnetic sheet 2 is located in the through hole 4, and the bottom layer 5 and the outer layer 6 are bonded and fixed. The purpose of this way is to make the processing and operation more convenient. In the embodiment one, since the mounting groove 3 is a blind hole provided on the back film body 1, it is necessary to know that the thickness of the magnetic sheet 2 is not easy to be large, otherwise the back film will be uneven after installation, and the thickness of the magnetic sheet 2 is also not easy to be too small, otherwise the magnetism is weak, and the processing difficulty of the mounting groove 3 is large. In order to better solve this problem, the two layers of back film are adopted in the present embodiment, that is, the through hole 4 with the same shape as the magnetic sheet 2 is directly provided in the first layer of back film, the thickness of the first layer of back film, that is, the bottom layer 5, is the same as that of the magnetic sheet 2, and then the outer layer 6 is directly covered on the bottom layer 5 and the magnetic sheet 2, so that the processing is convenient, and the operation is also convenient.

[0043] The above only describes the preferred embodiments of the present application and is not used to limit the present application. For those skilled in the art, the present application can have various changes and modifications. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A magnetic back film, characterized by, The back film body has an adhesive surface on one side for bonding with a mobile phone, and an installation groove is formed on the adhesive surface side of the back film body, and a magnetic attraction sheet is arranged in the installation groove.

2. The magnetic back film of claim 1, wherein: The adhesive surface is an adhesive layer.

3. The magnetic back film of claim 1, wherein: The adhesive layer is a glue layer.

4. The magnetic back film of claim 1, wherein: The back film body comprises a bottom layer and an outer layer fixed on the bottom layer, and a through hole is formed on the bottom layer, and the magnetic attraction sheet is located in the through hole.

5. The magnetic back film of claim 4, wherein: The bottom layer and the outer layer are fixed by adhesion.

6. The magnetic back film of claim 1, wherein: The thickness of the back film body is 0.38-0.82mm.

7. The magnetic back film of claim 1, wherein: The thickness of the magnetic attraction sheet is 0.3mm-0.6mm.

8. The magnetic back film of claim 1, wherein: The installation groove is circular.

9. The magnetic back film of claim 8, wherein: The magnetic attraction sheet is in the shape of a closed ring or a ring with a notch.

10. The magnetic back film of claim 1, wherein: The magnetic attraction sheet is made of metal.

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