JP3218727U - Mobile phone protective case and its magnetic shielding sheet - Google Patents

Abstract

A mobile phone protective case and a magnetic shielding sheet thereof are provided.
A magnetic shielding sheet includes an intermediate permeable layer made of a material having magnetic permeability and having printing characteristics. By further including a protective layer group (first and second protective film layers 100, 300) provided on both surfaces in the up-down direction of the intermediate magnetic permeable layer 200 or on any one surface thereof, the intermediate permeable layer 200 is provided. Since the strength is increased, the strength of the magnetic shielding sheet is ensured so as not to be easily damaged during use. Accordingly, the mobile phone protective case provided with the magnetic shielding sheet is more easily maintained and its service life is relatively long. In addition, since both the intermediate magnetic permeable layer 200 and / or the protective layer group have printing characteristics, in order to improve the appearance of the magnetic shielding sheet and to facilitate the promotion, the intermediate magnetic permeable layer 200 and / or the protective layer group may be provided according to actual requirements. Different patterns of different colors may be printed on the magnetically permeable layer 200 and / or the protective layer group.
[Selection] Figure 4

Description

  The present invention belongs to the technical field of magnetic permeability, and relates to a magnetic shielding sheet, and more particularly, to a sheet-shaped magnetic shielding sheet made of a magnetically permeable material and a mobile phone protective case provided with the sheet-shaped magnetic shielding sheet.

  At present, as science and technology continuously develop, people's demand for personality and awareness of convenience become more and more universal. For example, in our daily lives, various mobile phone protective cases or protective covers that are suitably used for various mobile phones are already found everywhere. On the other hand, with the spread and application of various RFID (Radio Frequency Identification) cards such as boarding cards, bank cards, entry permission cards, patient cards, meal cards, etc., these RFID cards are conveniently stored so that they can be used at any time. For this reason, it is common for people to always wear it in a protective case or protective cover of a mobile phone.

  In actual application, the metal case of the mobile phone and various electronic devices in the mobile phone interfere with the electromagnetic signals transmitted from these RFID cards inserted in the mobile phone protective case or the mobile phone protective cover, so that the card The reader cannot read it quickly, and cannot read the related information stored in these RFID cards, resulting in various inconveniences in people's lives. Therefore, the magnetic shielding sheet corresponding to it comes to be marketed. In other words, by incorporating a magnetic shielding sheet in the mobile phone protective case or protective cover, the magnetization of these RFID cards is prevented, and the transmitted electromagnetic signals are prevented from interfering with each other so that the cards can be read normally. Like that. However, in the prior art, the magnetic shielding sheet is generally a single-layer structure of one layer made of a magnetically permeable material, and it is easily damaged because its hardness is insufficient during use. The appearance is not very beautiful, which is disadvantageous for further processing.

  An object of the present invention is to provide a magnetic shielding sheet, and to solve the technical problem that a conventional magnetic shielding sheet is easily damaged in structure and is not very beautiful in appearance.

  In order to solve the above technical problem, the present invention employs the following technical solutions. A magnetic shielding sheet made of a material having magnetic permeability and including an intermediate magnetic permeability layer having printing characteristics, the intermediate magnetic permeability sheet provided on both surfaces in the vertical direction of the intermediate magnetic permeability layer or over any one surface. Provided is a magnetic shielding sheet further comprising a protective layer group for increasing the hardness of a magnetic layer.

  Furthermore, the protective layer group includes a first protective film layer having a printing property, which is provided so as to overlap any one surface in the vertical direction of the intermediate magnetically permeable layer.

  Alternatively, still further, the protective layer group is a second protective film having a printing characteristic provided on one surface of the intermediate magnetically permeable layer so as to face the first protective film layer. It further includes a layer.

  Alternatively, the protective layer group may be a first double-sided adhesive tape layer provided on one surface in the vertical direction of the intermediate magnetic permeability layer so as to face the first protective film layer. Is further included.

  Furthermore, the intermediate magnetically permeable layer has a thickness in the range of 0.01 to 1.0 mm.

  Still further, the first protective film layer has a thickness in the range of 0.01 to 1.0 mm.

  Alternatively, the protective layer group includes a second double-sided adhesive tape layer provided to overlap any one surface of the intermediate magnetically permeable layer in the vertical direction.

  Furthermore, the intermediate magnetically permeable layer has a thickness in the range of 0.01 to 1.0 mm.

  Compared with the prior art, beneficial effects of the magnetic shielding sheet provided by the present invention are as follows.

  In order to increase the strength of the intermediate magnetic permeable layer by providing a protective layer group on both surfaces or any one surface in the vertical direction of the intermediate magnetic permeable layer, the strength of the magnetic shielding sheet is ensured and easily used. Secured not to break. In addition, since the intermediate magnetic permeable layer and / or the protective layer group all have printing characteristics, in order to improve the appearance of the magnetic shielding sheet and to facilitate the promotion, the intermediate magnetic permeable layer and / or protective layer group may be provided according to actual requirements. Different patterns of various colors may be printed on the magnetically permeable layer and / or the protective layer group.

  Another object of the present invention is to provide a mobile phone protective case comprising a protective case main body and the magnetic shielding sheet provided on the protective case main body.

  Compared with the prior art, the beneficial effect of the mobile phone protective case provided by the present invention is that the mobile phone protective case is easily maintained by providing the magnetic shielding sheet, and the service life of the mobile phone protective case is kept at a certain level. It is to improve.

It is a structural schematic diagram which shows the cross section of the magnetic shielding sheet which concerns on Embodiment 1 of this invention. It is a structure schematic diagram in the case where each layer of the magnetic shielding sheet shown in FIG. 1 is in a partially separated state. It is a structural schematic diagram which shows the cross section of the magnetic shielding sheet which concerns on Embodiment 2 of this invention. FIG. 4 is a structural schematic diagram when each layer of the magnetic shielding sheet shown in FIG. 3 is in a partially separated state. It is a structural schematic diagram which shows the cross section of the magnetic shielding sheet shown in Embodiment 3 of this invention. It is a structural schematic diagram which shows the cross section of the magnetic shielding sheet which concerns on Embodiment 4 of this invention.

  In order to clarify technical problems, technical solutions, and advantages to be solved by the present invention, the present invention will be described below in more detail with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only for interpreting the invention and are not for limiting the invention.

  Hereinafter, implementation of the present invention will be described in detail with reference to specific drawings.

  It should be noted that when a member is referred to as “fixed” or “provided on” another member, it may be present directly or indirectly on the other member. When a member is referred to as “connected to” another member, it may be connected directly or indirectly to the other member.

  Furthermore, it should be noted that in the accompanying drawings of the embodiments of the present invention, the same or similar reference numerals correspond to the same or similar members. In the description of the present invention, it should be understood that when an orientation or positional relationship indicated by a term such as “upper”, “lower”, “left”, or “right” appears, it is based on the orientation or positional relationship shown in the accompanying drawings. The device or element must have a specific orientation, or be structured or operated in a specific orientation, simply to describe the invention easily and to simplify the description. Is not intended or implied. Therefore, the terms describing the positional relationship in the accompanying drawings are for illustrative purposes only and cannot be understood as limitations on the utility model. A person skilled in the art can understand the specific meaning of the terminology according to the specific situation.

  As shown in FIGS. 1 and 2, a magnetic shielding sheet provided by a preferred embodiment of the present invention.

  The magnetic shielding sheet is also called a magnetic prevention sheet, a magnetic prevention card, a magnetic prevention sticker, a demagnetization sheet, and the like. As shown in FIGS. 1 and 2, the magnetic shielding sheet includes an intermediate magnetic permeable layer 200. Here, the intermediate magnetic permeable layer 200 is manufactured from a material having a real part of magnetic permeability larger than 0 and having magnetic permeability characteristics, and has a thickness in a range of 0.01 to 1.0 mm. It should be noted that in order to easily print different patterns of different colors on this magnetic shielding sheet to improve the appearance of the magnetic shielding sheet and to facilitate the promotion of the magnetic shielding sheet, In addition, the intermediate magnetic permeability layer 200 has printing characteristics.

  Further, it should be noted that in actual application, the single magnetic permeable layer 200 alone can prevent various RFID cards such as a boarding card and a bank card from being demagnetized by a mobile phone. When reading a card, electromagnetic waves emitted from various RFID cards can be prevented from being interfered by metal cases of electronic equipment such as mobile phones and various electronic devices inside, so that the card can be operated normally and quickly. Reading is accomplished.

  In order to increase the hardness of the intermediate magnetic permeable layer 200 and improve the strength of the magnetic shielding sheet, the magnetic shielding sheet further includes a protective layer group. Here, the protective layer group is provided so as to overlap both or both surfaces in the vertical direction of the intermediate magnetic permeability layer 200. In other words, the intermediate magnetic permeable layer 200 generally has both an upper surface and a lower surface in the vertical direction. The protective layer group may be provided so as to overlap the upper surface and the lower surface of the intermediate magnetic permeable layer 200, or may be simply provided on the upper surface, or simply provided on the lower surface. That is, the protective layer group is provided on at least one of both the upper surface and the lower surface of the intermediate magnetic permeability layer 200.

  Specifically, in general, the protective layer group and the intermediate magnetic permeability layer are fixed by adhering to each other, and are bonded by, for example, a double-sided adhesive tape, a solid paste, or a liquid paste. Of course, it is not limited to the form provided in this way, and for example, it may be provided so as to be attached to each other.

  In particular, it should be noted that the magnetic shielding sheet is mainly used for a mobile phone protective case or a mobile phone protective cover, and of course may be applied to electronic equipment such as a tablet PC. That is, the magnetic shielding sheet is mainly used for a mobile phone protective case or a mobile phone protective cover, but is not limited thereto.

Embodiment 1
As shown in FIGS. 1 and 2, a magnetic shielding sheet according to a preferred embodiment provided by the present invention. Here, the protective layer group includes the first protective film layer 100. In order to easily increase the hardness of the intermediate magnetic permeable layer 200, the first protective film layer 100 is provided so as to overlap any one surface in the vertical direction of the intermediate permeable layer 200, specifically, on the upper surface or the lower surface. It may be provided. Specifically, in the present embodiment, the first protective film layer 100 and the intermediate magnetic permeability layer 200 are fixed by sticking, and are bonded by, for example, a double-sided adhesive tape or a solid paste.

  It should be noted that the first protective film layer 100 is generally a one-layer polymer protective film, and for example, a material such as PET, PE, PP, PC, or PVC is used. It is not limited to plastic films made from materials. Moreover, in order to satisfy the demands of individualization of different users, the first protective film layer 100 may have different thicknesses, and the thickness changes in the range of 0.01 to 1.0 mm. .

  Furthermore, it should be noted that the first protective film layer 100 has printing characteristics in order to easily improve the appearance of the magnetic shielding sheet. In general, different patterns of various colors may be printed on the first protective film layer 100. In special cases, the first protective film layer 100 may be transparent. A pattern having the same color may be printed on the intermediate magnetic permeable layer 200.

Embodiment 2
With reference to FIGS. 3 and 4 together, another preferred embodiment of the present invention is provided.

  Actually, the main technical features of the present embodiment are almost the same as those of the first embodiment, and thus will not be described in detail here. In the present embodiment, the second protective layer group is provided so as to overlap any one surface of the intermediate magnetic permeable layer 200 so as to face the first protective film layer 100 except for the first protective film layer 100 described above. This embodiment is different from the first embodiment in that the protective film layer 300 is further included. That is, when the first protective film layer 100 is provided so as to overlap with the upper surface of the intermediate magnetic permeability layer 200, the second protective film layer 300 is provided so as to overlap with the lower surface of the intermediate magnetic permeability layer 200, and vice versa. .

  Similarly, it should be noted that the second protective film layer 300 is also generally a single-layer polymer protective film, and for example, a material such as PET, PE, PP, PC, or PVC is adopted. , Not limited to plastic films made from these materials. Moreover, in order to satisfy the demands of individualization of different users, the second protective film layer 300 may also have different thicknesses, and the thickness also changes in the range of 0.01 to 1.0 mm.

  It should also be noted that, similarly, the second protective film layer 300 also has printing characteristics in order to easily improve the appearance of the magnetic shielding sheet. That is, different patterns of various colors may be printed on the second protective film layer 300. In other words, different patterns of various colors may be printed on the first protective film layer 100 and / or the first protective film layer 100 according to different requirements of the user. In a special case, if the first protective film layer 100 or the second protective film layer 300 is transparent, similarly, different patterns of various colors are printed on the intermediate magnetic permeability layer 200. Also good.

  Finally, it should be noted that the second protective film layer 300 may be the same as or different from the first protective film layer 100 depending on the actual requirements.

Embodiment 3
With reference to FIG. 5 together, another preferred embodiment of the present invention is provided.

  Actually, the main technical features of the present embodiment are almost the same as those of the first embodiment, and thus will not be described in detail here. In the present embodiment, the protective layer group is provided so as to overlap any one surface in the vertical direction of the intermediate magnetic permeable layer 200 so as to face the first protective film layer 100 except the first protective film layer 100 described above. Further, the first double-sided adhesive tape layer 400 is further different from the first embodiment. That is, when the first protective film layer 100 is provided so as to overlap the upper surface of the intermediate magnetic permeability layer 200, the first double-sided adhesive tape layer 400 is provided so as to overlap the lower surface of the intermediate magnetic permeability layer 200, and vice versa. May be.

Embodiment 4
Referring to FIG. 6 together, another preferred embodiment of the present invention is provided.

  The main technical features of the present embodiment are slightly different from those of the first embodiment, and the protective layer group is provided to overlap any one surface in the vertical direction of the intermediate magnetic permeability layer 200, specifically, A second double-sided adhesive tape layer 500 provided on the upper or lower surface of the intermediate magnetic permeability layer 200 is included.

  It should be noted that the hardness of the intermediate magnetic permeable layer 200 can be strengthened to a certain degree even though it is not as remarkable as the strengthening effect of some of the embodiments described above. Furthermore, it should be noted that the second double-sided adhesive tape layer 500 may be the same as or different from the first double-sided adhesive tape layer 400 depending on the actual requirements.

  The present invention provides a mobile phone protective case comprising a protective case main body and the magnetic shielding sheet provided on the protective case main body. It should be understood that by providing the magnetic shielding sheet on the protective case body, the protective case body can be easily maintained, and the service life of the mobile phone protective case or the mobile phone protective cover can be improved to a certain extent. .

  In particular, it should be noted that the protective case main body may be a case of a mobile phone protective case or a cover of a mobile phone protective cover. The mobile phone protective cover and the mobile phone protective case are basically similar in operation during the use of the mobile phone and both protect the mobile phone. Therefore, in the present invention, only the mobile phone protective case is used. Although described as an example, in practice, the magnetic shielding sheet may be applied to a mobile phone protective cover. Moreover, since the magnetic shielding sheet in this embodiment uses the magnetic shielding sheet corresponding to each of the above embodiments and performs the same function, it will not be described in detail here.

  The above are only preferred embodiments of the present invention, and are not intended to limit the present invention. For those skilled in the art, the present invention may have various changes and variations. Any amendments, equivalent substitutions, improvements, etc. made in the spirit and principle of the present invention should be included in the claims of the utility model registration of the present invention.

  100 first protective film layer, 200 intermediate magnetic permeability layer, 300 second protective film layer, 400 first double-sided adhesive tape layer, 500 second double-sided adhesive tape layer.

Claims (9)

  A magnetic shielding sheet made of a material having magnetic permeability and including an intermediate magnetic permeability layer having printing characteristics, the intermediate magnetic permeability sheet provided on both surfaces in the vertical direction of the intermediate magnetic permeability layer or over any one surface. A magnetic shielding sheet further comprising a protective layer group for increasing the hardness of the magnetic layer.   2. The magnetism according to claim 1, wherein the protective layer group includes a first protective film layer having printing characteristics provided to overlap with any one surface in the vertical direction of the intermediate magnetically permeable layer. Blocking sheet.   The protective layer group further includes a second protective film layer having printing characteristics provided to overlap any one surface of the intermediate magnetic permeable layer so as to face the first protective film layer. The magnetic shielding sheet according to claim 2, wherein   The protective layer group further includes a first double-sided adhesive tape layer provided so as to overlap any one surface in the vertical direction of the intermediate magnetically permeable layer so as to face the first protective film layer. The magnetic shielding sheet according to claim 2.   5. The magnetic shielding sheet according to claim 1, wherein the intermediate magnetic permeable layer has a thickness in a range of 0.01 to 1.0 mm.   The magnetic shielding sheet according to any one of claims 2 to 4, wherein the first protective film layer has a thickness in a range of 0.01 to 1.0 mm.   2. The magnetic shielding sheet according to claim 1, wherein the protective layer group includes a second double-sided adhesive tape layer provided so as to overlap any one surface in the vertical direction of the intermediate magnetically permeable layer.   The magnetic shielding sheet according to claim 7, wherein the intermediate magnetic permeable layer has a thickness in a range of 0.01 to 1.0 mm.   A mobile phone protective case comprising: a protective case main body; and the magnetic shielding sheet according to claim 1 provided on the protective case main body.

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