KR102153350B1 - Cell phone case having shielding plate and card loss detection device using the same - Google Patents

Abstract

The present invention relates to a mobile phone case including a shielding plate and a card loss sensing device using the same and, specifically, to a mobile phone case including a shielding plate capable of sensing whether or not a card stored in a card storage pocket of a cover of a mobile phone case is lost by expanding the NFC power of a mobile phone to the cover through a coupling antenna and an expansion antenna while preventing a collision between a tag and an NFC card during NFC reader communication by including a shielding plate; and a card loss sensing device using the same. According to the present invention, whether or not the card is lost can be determined as a tag provided in a card is recognized without a separate power source by expanding the NFC power of a mobile phone to a cover of a mobile phone case. According to the present invention, a shielding plate provided to shield an expansion antenna of a cover can prevent a collision between a tag and an NFC card during NFC reader communication.

Description

Cell phone case equipped with blocking plate and card loss detection device using the same {CELL PHONE CASE HAVING SHIELDING PLATE AND CARD LOSS DETECTION DEVICE USING THE SAME}

The present invention relates to a mobile phone case provided with a blocking plate and a card loss detection device using the same. In particular, a card accommodated in a card storage pocket of the cover by extending NFC power of the mobile phone to a cover of the mobile phone case through a coupling antenna and an extended antenna The present invention relates to a mobile phone case provided with a blocking plate that detects whether or not is lost but has a blocking plate to prevent collision between an NFC card and a tag during NFC reader communication, and a card loss detection device using the same.

In general, mobile phones have an outer case made of metal or plastic, and a screen made of glass. Therefore, a mobile phone case is used to wrap and protect the mobile phone to compensate for it because it is vulnerable to external shocks. In addition, in addition to the function of simply protecting the mobile phone, there are many cases of using a card storage mobile phone case that stores a card or the like. Such a card storage mobile phone case includes a diary type consisting of a mobile phone mounting frame on which a mobile phone is mounted and a cover having a card storage pocket formed thereon, and a card bumper case type having a card storage pocket on the rear of the mobile phone mounting frame.

However, in the above-described card storage mobile phone case, it is difficult to recognize the loss of the card before the user visually checks it, and in particular, in the case of the card bumper case type, an error occurs due to collision with the NFC function of the mobile phone. Moreover, even in the case of a diary type, there is a problem in that it is difficult to recognize the card storage pocket of the cover, that is, the card positioned in the direction of the mobile phone screen.

Republic of Korea Patent Publication No. 10-2018-0015315 (published on February 13, 2018)

An object of the present invention is to provide a mobile phone case provided with a blocking plate capable of detecting whether a card is lost without conflicting with the NFC function of the mobile phone, and a card loss detection device using the same.

Another object of the present invention is to provide a mobile phone case provided with a blocking plate that can reliably detect whether a card stored in a cover of the mobile phone case is lost with a simple structure, and a card loss detection device using the same.

The object of the present invention is not limited to the above-mentioned object, and other objects and advantages of the present invention not mentioned can be understood by the following description, and will be more clearly understood by the examples of the present invention. In addition, it will be easily understood that the objects and advantages of the present invention can be realized by the means shown in the claims and combinations thereof.

The mobile phone case provided with a blocking plate according to the present invention is a mobile phone case including a mobile phone mounting frame on which the mobile phone is mounted and a cover covering the top of the mobile phone, and is provided on the mobile phone mounting frame to couple NFC power of the mobile phone. An antenna, a link antenna provided on the cover and connected to the coupling antenna to form one loop, an extended antenna having a plurality of loop antennas spaced apart from each other and forming a multiple loop in a partial region of the link antenna, and a cover and a loop It includes a blocking plate provided between the antennas.

The blocking plate may also be provided between the cover and the link antenna. In this case, the blocking plate has a rectangular plate shape based on the plan view, but the center portion is opened.

One or more card storage pockets in which cards are stored are formed on the cover, and an extension antenna may be provided for each card storage pocket.

The link antenna has a rectangular loop shape, and the loop antenna may be formed at two or more of the four corners of the link antenna.

The blocking plate is provided in the card storage pocket, and is provided between the expansion antenna and the card stored in the card storage pocket, the NFC card coupling antenna located in the center of the expansion antenna, and provided on the cover, but located in the outer area of the blocking plate. It may further include an NFC card antenna having an NFC card expansion antenna, and an NFC card link antenna connecting the NFC card coupling antenna and the NFC card expansion antenna.

In addition, the card loss detection device according to the present invention is a card loss detection application that determines whether a tag is detected by the above-described mobile phone case, the tag provided on the card accommodated in the cover of the mobile phone case, and the extended antenna provided in the mobile phone case. Includes.

The mobile phone case provided with a blocking plate according to the present invention and the card loss detection device using the same can determine whether the card is lost without collision with the NFC function of the mobile phone by extending the NFC power of the mobile phone to the cover of the mobile phone case.

The mobile phone case provided with a blocking plate according to the present invention and the card loss detection device using the same can recognize a tag provided on the card without a separate power source by extending the NFC power of the mobile phone to the cover of the mobile phone case.

The mobile phone case provided with a blocking plate according to the present invention and a card loss detection device using the same are provided with a blocking plate that blocks the extended antenna of the cover, so that a collision between an NFC card and a tag can be prevented during NFC reader communication.

In addition to the above-described effects, specific effects of the present invention will be described together while describing specific details for carrying out the present invention.

1 is a conceptual diagram of a mobile phone case provided with a blocking plate according to the present invention.
2 is a schematic plan view of an antenna in a mobile phone case with a blocking plate according to the present invention.
3 is a plan view illustrating the number of loop antennas in a mobile phone case provided with a blocking plate according to the present invention.
4 is a plan view illustrating a shape of a loop antenna in a mobile phone case provided with a blocking plate according to the present invention.
5 is a schematic cross-sectional view of FIG. 1.
6 is a conceptual diagram of a mobile phone case provided with a blocking plate according to a modified example of the present invention.
7 is a conceptual diagram of a mobile phone case provided with a blocking plate according to another modified example of the present invention.
8 is a schematic cross-sectional view of FIG. 7.
9 is a conceptual diagram of a card loss detection device to which a mobile phone case provided with a blocking plate according to the present invention is applied.

The above-described objects, features, and advantages will be described later in detail with reference to the accompanying drawings, and accordingly, one of ordinary skill in the art to which the present invention pertains will be able to easily implement the technical idea of the present invention. In describing the present invention, if it is determined that a detailed description of known technologies related to the present invention may unnecessarily obscure the subject matter of the present invention, a detailed description will be omitted. Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. In the drawings, the same reference numerals are used to indicate the same or similar elements.

1 is a conceptual diagram of a mobile phone case provided with a blocking plate according to the present invention.

The mobile phone case provided with the blocking plate according to the present invention includes a case body 100 provided with a mobile phone mounting frame 110 and a cover 120, and a cover 120 in the mobile phone mounting frame 110, as shown in FIG. ), and a blocking plate 400 provided in at least a partial area between the cover 120 and the antenna 200 and an antenna 200 for coupling NFC power.

The case body 100 is for storing and protecting the mobile phone, and is connected to the mobile phone mounting frame 110 to protect the back and sides of the mobile phone by directly receiving the mobile phone, and the mobile phone mounting frame 110 to protect the mobile phone screen. It includes a cover 120.

The mobile phone mounting frame 110 is formed in a rectangular frame shape with an open top so as to correspond to the shape of the mobile phone to surround and protect the rear and side surfaces of the mobile phone. In addition, the mobile phone mounting frame 110 may be formed to press the side of the mobile phone or surround the upper edge of the mobile phone so that the stored mobile phone is not separated by an impact or the like.

The cover 120 is connected to the mobile phone mounting frame 110 and is provided to open and close. It is preferable that the cover 120 is formed in a rectangular plate shape to protect the upper part of the mobile phone. In addition, one or more card storage pockets 121 for storing cards are formed in the cover 120.

2 is a schematic plan view of an antenna in a mobile phone case with a blocking plate according to the present invention.

The antenna 200 couples the NFC (Near Field Communication) power of the mobile phone and transmits it to the cover 120. To this end, the antenna 200 includes a coupling antenna 210 and an extension antenna 220 extending from the coupling antenna 210 as shown in FIGS. 1 and 2.

The coupling antenna 210 is provided on the mobile phone mounting frame 110 to couple the NFC power of the mobile phone. This embodiment illustrates that the coupling antenna 210 is provided on the mobile phone mounting frame 110 in a square frame shape based on a plan view. However, the present invention is not limited thereto, and the coupling antenna 210 according to the present invention may be formed in a polygonal frame shape including a circular frame shape, an oval frame shape, and a triangular frame shape based on a plan view.

The extended antenna 220 is connected to the coupling antenna 210 or extends from the coupling antenna 210 to receive NFC power of the mobile phone through the coupling antenna 210. The extended antenna 220 is connected to the coupling antenna 210 or extends from the coupling antenna 210 and is positioned on the cover 120 of the mobile phone case. The extension antenna 220 includes a link antenna 221 and a loop antenna 222 formed on the link antenna 221.

The link antenna 221 is electrically directly connected to the coupling antenna 210 and forms one loop in the cover 120 of the mobile phone case. Here, the present embodiment exemplifies that the link antenna 221 has a rectangular loop shape so as to correspond to the shape of the card stored in the card storage pocket 121. In addition, as shown in FIG. 2, the link antenna 221 is provided for each card storage pocket 121 and a tag attached to each card accommodated in each card storage pocket 121 is a loop antenna 222 to be described later. It is desirable to let) detect each. Here, the tag may be separately manufactured and attached to the card, or may be formed on the card when the card is manufactured.

3 is a plan view for explaining the number of loop antennas in a cell phone case with a blocking plate according to the present invention, and FIG. 4 is a plan view for explaining the shape of a loop antenna in a cell phone case with a blocking plate according to the present invention.

The loop antenna 222 is for recognizing a tag provided on the card, and is formed by making a part of the link antenna 221 in a multi-loop form. This embodiment exemplifies a loop antenna 222 formed in a concentric multiple loop shape as the loop antenna 222. However, the present invention is not limited thereto, and the loop antenna 222 may be formed in a square shape as shown in FIG. 4(a) or in a triangular shape as shown in FIG. 4(b). . Furthermore, as shown in (c) of FIG. 4, the loop antenna 222 may have an oval shape or a pentagonal shape as shown in (d) of FIG. 4. That is, in the present invention, the loop antenna 222 can be formed in any shape if the tag provided on the card can be recognized. However, even in this case, it is preferable that the loop antenna 222 has a multi-loop type. Of course, in the drawing, it is shown that the multi-loop form is not electrically connected to each other, but the loop antenna 222 is substantially a form in which the link antenna 221 is wound in a coil form in a plane.

On the other hand, the tag (Tag) is preferably manufactured in a small size as possible to minimize interference between the tags and between the tag and the card with NFC embedded, for example, the tag is smaller than the diameter of the loop antenna 222 or loop It may be formed in a size corresponding to the antenna 222. In addition, according to the present invention, a plurality of loop antennas 222 are provided on the link antenna 221 in order to recognize a tag having a small size.

In the present invention, a plurality of loop antennas 222 may be formed to be spaced apart from each other on the link antenna 221, and this embodiment includes four loop antennas 222 on the link antenna 221, that is, a first loop antenna ( 222a), the second loop antenna 222b, the third loop antenna 222c, and the fourth loop antenna 222d are provided to be spaced apart from each other. However, the present invention is not limited thereto, and two or more loop antennas 222 of the present invention may be provided on the link antenna 221 to be spaced apart from each other. Here, when two loop antennas 222 are provided in the link antenna 221, it is preferable that the loop antenna 222 is positioned at the corner of the link antenna 221 having a square loop shape, which is shown in FIG. As shown, it may be located at the top corners of the link antenna 221, ① and ②. Of course, the loop antenna 222 may be located at the lower corners of the link antenna 221, ③ and ④, and may be located at the sides ② and ③, or ① and ④. Moreover, the loop antenna 222 may be located at ① and ③, or ② and ④ of the link antenna 221. In addition, when three loop antennas 222 are provided, they may be located at the remaining corners except for any one of the four corners of the link antenna 221. Meanwhile, five loop antennas 222 of the present invention may be provided, and in this case, they may be located at the centers of four corners and four corners of the link antenna 221. In addition, when five loop antennas 222 are provided, the link antenna 221 is preferably connected to the coupling antenna 210 via the center of the four corners.

On the other hand, when the two loop antennas 222 are provided, the recognition rate of the tag changes according to the storage direction of the card stored in the card storage pocket 121, so the storage direction of the card stored in the card storage pocket 121 It is desirable to guide. That is, when the tag is located on the upper side of the card, when the card is received in the card storage pocket 121, the loop antenna 222 must be located in the area where the tag is located to increase the tag recognition rate. Accordingly, when two loop antennas 222 are provided, guiding the receiving direction of the card is effective in increasing the recognition rate of the tag.

However, if four loop antennas 222 are provided, the card storage direction guide is unnecessary since the tag can be detected at any of the four corners of the card.

In addition, it is effective that the antenna 200 of the present invention is made of a flexible material such as a flexible printed circuit board (FPCB) or a coil.

5 is a schematic cross-sectional view of FIG. 1. Here, FIG. 5 shows an additional NFC reader in the mobile phone case shown in FIG. 1.

The blocking plate 400 prevents the tag provided on the card from being recognized by the NFC reader. To this end, the blocking plate 400 covers the link antenna 221 and the loop antenna 222, as shown in FIG. 5, that is, the link antenna 221 and the loop antenna 222, and the cover 12 Is located between. In addition, the blocking plate 400 may have a rectangular plate shape in which the center is opened based on a plan view, as shown in FIG. 1 to cover the link antenna 221 and the loop antenna 222. The blocking plate 400 may be made of a shielding material, for example, ferrite, so that communication may be blocked. Referring to FIG. 5, as the blocking plate 400 is provided, the tag provided on the card is normally recognized by the extended antenna 220 but not recognized by the NFC L. In addition, in the case of the NFC card, it is possible to communicate normally with the NFC reader through a space where the blocking plate 400 is not processed, that is, an open center. Accordingly, it is possible to prevent the tag for card management and the NFC function of the transportation card from colliding with each other.

6 is a conceptual diagram of a mobile phone case provided with a blocking plate according to a modified example of the present invention.

Meanwhile, the present invention can change the shape of the blocking plate 400. This may allow the blocking plate 400 to be provided only on the loop antenna 222, as shown in FIG. 6. In this case, since this embodiment illustrated the four loop antennas 222, the blocking plate 400 is also a first blocking plate 410 and a second blocking plate 420, which are four blocking plates 400, and a third blocking plate. A plate 430 and a fourth blocking plate are provided. Of course, when the five loop antennas 222 are provided as described above, the blocking plate 400 is also provided with five.

7 is a conceptual diagram of a mobile phone case provided with a blocking plate according to another modified example of the present invention, and FIG. 8 is a schematic cross-sectional view of FIG. 7. FIG. 8 shows an additional NFC reader in the mobile phone case shown in FIG. 7.

In addition, according to the present invention, as shown in FIG. 7, the blocking plate 400 may be formed to cover all the card storage pockets 121. In this case, since the NFC card cannot communicate with the NFC L by the blocking plate 400, an NFC card antenna 230 may be additionally provided.

As shown in FIG. 7, the NFC card antenna 230 is an NFC card coupling antenna at the center of the extended antenna 220, that is, at a location where an induced current with the tag does not exist and an induced current with the NFC card occurs. (231), after positioning the NFC card expansion antenna 232 outside the blocking plate 400, the NFC card coupling antenna 231 and the NFC card expansion antenna 232 NFC card link antenna 233 Connect through Here, the NFC card coupling antenna 231 and the NFC card expansion antenna 232 have a multi-loop shape.

8, the NFC card coupling antenna 231 is positioned between the extended antenna 220 and the card equipped with the tag, and after the NFC card extended antenna 232 is positioned outside the blocking plate 400, NFC The card coupling antenna 231 and the NFC card expansion antenna 232 are connected to the NFC card link antenna 233. Accordingly, the tag provided on the card is normally recognized by the extended antenna 220 but is not recognized by the NFC L. In addition, in the case of the NFC card, it is possible to communicate normally with the NFC reader through the NFC card expansion antenna 232 located outside the blocking plate 400, and accordingly, the tag for card management and the NFC function of the transportation card collide with each other. Can be prevented.

As described above, the present invention is provided with a blocking plate to block the extended antenna of the cover, it is possible to prevent a collision between the NFC card and the tag during NFC reader communication.

Next, a card loss detection device to which a mobile phone case according to the present invention is applied will be described with reference to the drawings. Among the contents to be described later, contents overlapping with the description of the mobile phone case according to the present invention described above will be omitted or briefly described.

9 is a conceptual diagram of a card loss detection device to which a mobile phone case provided with a blocking plate according to the present invention is applied.

As shown in Figure 9, the card loss detection device according to the present invention includes a tag provided on the card and an antenna 200 that couples the NFC power of the mobile phone to the cover 120 to expand the cover. It includes a case body 100 provided with a blocking plate 400 in 120, a card loss detection application 300 provided in a mobile phone to determine whether or not the antenna 200 detects a tag. Here, since the description of the case body 100 and the antenna 200 is the same as the description of the mobile phone case according to the present invention, a description thereof will be omitted.

The card loss detection application 300 determines whether the card is stored in the card storage pocket 121 using the tag detection signal received from the antenna 200. To this end, the card loss detection application 300 includes a tag detection signal receiver 310 that receives a tag detection signal from the coupling antenna 210 and the card in the card storage pocket 121 based on the received tag detection signal. A card loss detector 320 for determining whether to be stored, and a warning indicator 330 for displaying a warning when the mobile phone moves more than a preset distance in a state in which a tag detection signal is not received.

The tag detection signal receiver 310 receives the tag detection signal transmitted to the mobile phone NFC antenna through the coupling antenna 210. In addition, the tag detection signal receiver 310 transmits the received tag detection signal to the card loss detector 320 to be described later.

The card loss detector 320 detects whether the card is lost based on the tag detection signal received from the tag detection signal receiver 310. To this end, the card loss detector 320 recognizes and registers the tag of the card stored in the card storage pocket 121, and registers the tag of the registered card through the extended antenna 220 provided in the card storage pocket 121. To detect. Here, the card loss detector 320 is a warning indicator to be described later when the tag of the registered card is not detected for a preset time, or the movement of the mobile phone is detected through the GPS module of the mobile phone, but the tag of the registered card is not detected ( 330) can transmit the card loss signal.

The warning indicator 330 displays a warning when the card loss detector 320 does not detect the card so that the user can recognize it. This can be performed by receiving a card loss signal from the card loss detector 320 as described above, and the warning indicator 330 includes a display on the cover 120 of the mobile phone case and then displays a warning through the display. Alternatively, an acoustic warning through the speaker of the mobile phone and a warning by vibration through the vibration module of the mobile phone can be displayed.

As described above, according to the present invention, it is possible to determine whether the card is lost by expanding the NFC power of the mobile phone to the cover of the mobile phone case and recognizing the tag provided on the card without additional power.

As described above with reference to the drawings illustrated for the present invention, the present invention is not limited by the embodiments and drawings disclosed in the present specification, and various by a person skilled in the art within the scope of the technical idea of the present invention. It is obvious that transformation can be made. In addition, even if not explicitly described and described the effects of the configuration of the present invention while describing the embodiments of the present invention, it is natural that the predictable effects of the configuration should also be recognized.

100: mobile phone case body 110: mobile phone mounting frame
120: cover 121: card storage pocket
200: antenna 210: coupling antenna
220: extended antenna 221: link antenna
222: loop antenna 222a: first loop antenna
222b: second loop antenna 222c: third loop antenna
222d: fourth loop antenna 230: NFC card antenna
231: NFC card coupling antenna 232: NFC card expansion antenna
233: NFC card link antenna 300: card loss detection application
310: tag detection signal receiver 320: card loss detector
330: warning indicator 400: blocking plate
410: first blocking plate 420: second blocking plate
430: third blocking plate 440: fourth blocking plate

Claims (6)

A mobile phone case comprising a mobile phone mounting frame on which a mobile phone is mounted, and a cover covering an upper portion of the mobile phone,
A coupling antenna provided on the mobile phone mounting frame to couple the NFC power of the mobile phone,
A link antenna provided on the cover and connected to the coupling antenna to form one loop, and an extension antenna having a plurality of loop antennas spaced apart from each other and forming multiple loops in a partial region of the link antenna, and
And a blocking plate provided between the cover and the loop antenna, and between the cover and the link antenna, wherein at least one card storage pocket for receiving a card is formed in the cover, and the expansion antenna is provided for each card storage pocket. Equipped,
The link antenna has a rectangular loop shape, the loop antenna is formed at two or more of the four corners of the link antenna, the blocking plate is provided in the card storage pocket,
An NFC card coupling antenna provided between the expansion antenna and a card accommodated in the card storage pocket and located in the center of the expansion antenna, and an NFC card expansion antenna provided on the cover and located in an outer area of the blocking plate And Mobile phone case comprising an NFC card antenna having an NFC card link antenna connecting the NFC card coupling antenna and the NFC card expansion antenna.
delete delete delete delete A mobile phone case according to paragraph 1;
A tag provided on a card accommodated in the cover of the mobile phone case, and
Card loss detection device comprising a card loss detection application for determining whether the tag is detected by the extended antenna provided in the mobile phone case.

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