JP2003037861A - Cabinet for portable telephone set having noncontact type ic card - Google Patents

Abstract

PROBLEM TO BE SOLVED: To add information processing function, FID function, etc., of a noncontact type IC card to a portable telephone set without enlarging a main body of the portable telephone set. SOLUTION: The cabinet is a cabinet of a portable telephone set performing radio communication and composed of resin. In a part of the cabinet, e.g. in resin of a cover of a battery part, not only an antenna coil 4 in which metal conductor is wired in a coil shape is included and sealed but also a noncontact type IC card function component which is constituted of an IC module 5 which is electrically connected with the antenna coil 4 is included and sealed.

Description

Detailed Description of the Invention

[0001]

TECHNICAL FIELD The present invention relates to a mobile phone and a PHS.
In particular, a non-contact type IC card functional component including an antenna in which a metal conductor is wired in a coil shape on a part of a casing of a mobile telephone and an IC component electrically connected to the antenna is provided. By encapsulating, the information processing function of non-contact type IC card and RFID (Radio Frequency Identification: Radio Fr
The present invention relates to a mobile phone housing having a non-contact type IC card function, to which a frequency identification function or the like can be added.

[0002]

2. Description of the Related Art Mobile phones such as mobile phones and PHS are
From the point that portability is required, miniaturization and weight reduction have been promoted as much as possible. On the other hand, in the field of IC cards, non-contact type IC cards are rapidly becoming widespread, and their application to various fields is spreading due to the convenience of non-contact communication without batteries. Since a non-contact type IC card exchanges data by non-contact communication, a normal magnetic card or contact I
It does not need to be inserted into a reading device like a C card, and can be used in a form incorporated in a mobile phone or the like.

FIG. 5 shows an example of a conventional mobile phone. Usually, the housing 1 of a mobile phone is composed of several parts made of resin or the like. A part of the back surface is a battery part cover 3 which can be opened and closed by a part containing a battery.

FIG. 6 shows the structure of a conventional non-contact type IC card. In a state in which an antenna coil 4 in which a metal conductor is formed in a coil shape of several turns by winding or conductive paste printing and etching, and an electronic component (IC module 5) including a memory and the like are electrically connected, PVC or PET is used. The sheet material 6 such as is laminated and sealed to form a planar shape as a whole. The larger the area surrounded by the loop of the antenna coil 4 (coil loop area), the better the communication distance characteristic.
Are routed on all four sides of the card.

[0005]

However, in the case of adding a non-contact type IC card function to a mobile phone, a conventional card type is formed in a small size, and an antenna is specially shaped to be a postage stamp size. Alternatively, a method of inserting and fixing a microminiature product having an antenna formed on the chip itself inside the mobile phone can be considered.

In the conventional card type and special antenna type, the antenna coil 4 is often formed by etching or printing of a conductive paste, and in these methods, the antenna shape is limited to a planar shape, so that they are carried. In order to arrange them inside the telephone, it is necessary to secure a space for arranging them inside the portable telephone, which leads to an increase in size of the portable telephone. Further, since the type in which the antenna coil 4 is formed on the chip itself is small, it is not necessary to increase the size of the mobile phone, but since the antenna coil 4 is small, the same communication distance characteristic as the conventional card cannot be obtained.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to solve the above-mentioned problems and to provide a non-contact type I without increasing the size of the mobile phone body.
An object of the present invention is to provide a mobile phone casing having a non-contact type IC card function, to which a mobile phone can be added with the information processing function of the C card, the RFID function, and the like.

[0008]

In order to achieve the above object, the present invention is configured as follows.

According to a first aspect of the present invention, there is provided a case for a mobile phone having a non-contact type IC card function, which is a case of a mobile phone for performing wireless communication, wherein at least a part of the case made of resin has a metal structure. Non-contact type I consisting of an antenna in which a conductor is wired in a coil shape and an IC component electrically connected to the antenna
It is characterized in that the C card functional component is internally sealed.

This is not only an antenna in which a metal conductor is wired in a coil shape, but also a non-contact type IC card functional component including an IC component electrically connected to the antenna is built in the resin of the casing of the mobile phone. This is a sealed form, and according to this feature, without enlarging the main body of the mobile phone,
In other words, the information processing function and RF of the non-contact type IC card can be achieved without narrowing the space for accommodating components inside the housing of the mobile phone.
An ID function or the like can be added to the mobile phone.

According to a second aspect of the present invention, in the mobile phone casing having the non-contact type IC card function according to the first aspect, an antenna in which the metal conductor is coiled is electrically connected to the antenna. Non-contact type IC consisting of IC parts
It is characterized in that the card functional component is part of the casing of the mobile phone and is internally sealed in a removable battery cover.

This is not only an antenna in which a metal conductor is wired in a coil shape, but also a non-contact type IC card functional component including an IC component electrically connected to the antenna is a part of the casing of the mobile phone. It is configured such that it is built in and sealed in the resin of the removable battery cover. According to this feature, the information processing function of the non-contact type IC card, the RFID function and the like can be added to the mobile phone as in the first aspect, and the opening area of the antenna can be secured relatively large.

According to a third aspect of the present invention, in the mobile phone casing having the non-contact type IC card function according to the second aspect, the antenna in which the metal conductor is wired in a coil shape is the mobile phone casing. It is wound in a coil around the entire circumference,
In addition, it is characterized in that it comprises an antenna coil embedded in the housing, and the IC component electrically connected to the antenna coil is built-in and sealed in a part of the housing of the mobile phone.

According to this feature, a larger opening area (coil loop area) of the antenna can be secured as compared with the case where the antenna coil is built in and sealed in the battery cover.

According to a fourth aspect of the present invention, in the mobile phone casing having the non-contact type IC card function according to any one of the first to third aspects, the antenna in which the metal conductor is coiled is a magnet. It is characterized in that it is formed by winding a wire.

According to a fifth aspect of the present invention, in the mobile phone casing having the non-contact type IC card function according to any one of the first to third aspects, the antenna in which the metal conductor is coiled is MID. It is characterized by being formed by wiring. <Points of the Invention> In the present invention, a non-contact type IC card functional component including an antenna in which a metal conductor is wired in a coil shape and an IC component electrically connected to the antenna is provided in a part of a housing of a mobile phone, for example. It is internally sealed in the resin of the battery cover. Therefore, it is not necessary to secure a space inside the housing in order to add the non-contact type IC card function. Therefore, the contactless IC card function can be added to the mobile phone without increasing the size of the mobile phone.

An antenna in which a metal conductor is wired in a coil shape is formed by winding a magnet wire or by MID wiring. The MID wiring is an injection molding circuit (MID: Mo
This is a wiring method that uses the method of "Ledded Interconnection Device". Manufacturing methods (MID wiring) by this injection molding are roughly classified into a plating method and a circuit film method.
Any of them can be used as a method for manufacturing the antenna in the present invention.

The former plating method is obtained by plating a resin molded product, and a typical one thereof is a one-shot molding method or a two-shot molding method. The one-shot molding method is a method in which an injection-molded product is used and is manufactured through a two-step plating process, and it is possible to obtain a product with high fineness (precision). The two-shot molding method is manufactured by passing through a two-step resin molding process and is suitable for manufacturing a three-dimensional shape having a three-dimensional curved surface shape.

On the other hand, the latter circuit film method is a method of forming a predetermined circuit pattern on a predetermined surface and integrating or transferring the predetermined circuit pattern at the time of resin molding.
There is an in-mold method. The in-mold method is to set a circuit pattern-formed product in a molding die, injection-mold a resin in the mold, and transfer the circuit pattern to the resin-molded product. In this in-mold method, various construction methods can be applied to the formation of the circuit pattern, and there is a high degree of freedom in selecting the material for forming the resin molded body and a high degree of precision (accuracy).

[0020]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below based on the illustrated embodiments.

FIG. 1 shows a mobile phone according to the first embodiment, where (a) shows the back side and (b) shows the front side. In the figure, 1 is a housing of the mobile phone, 2 is a battery housed in the internal space of the mobile phone, and 3 is a removable battery cover.

The mobile phone according to the first embodiment is
As shown in FIG. 1B, an antenna coil (antenna) 4 in which a metal conductor is coiled is formed inside the battery cover 3 on the back side forming a part of the housing 1, and electrically connected to the antenna coil 4. IC module (IC parts)
5 and 5 are built-in and sealed. In the case of this embodiment, the antenna coil 4 is wound in a rectangular shape along the outer shape of the battery cover 3 by the MID wiring. However, the antenna coil 4 may be configured by winding it in a coil shape using a magnet wire.

According to the embodiment of FIG. 1, the non-contact type I
The C-card functional component is not incorporated in the mobile phone but is internally sealed in the resin of a part of the housing 1 so that the non-contact type IC card function can be incorporated without securing the space inside the housing 1 and the antenna. The area surrounded by the loop of the coil 4 can be widened.

2A and 2B show a second embodiment of the casing 1 of the mobile phone having the above-mentioned non-contact type IC card function built therein. FIG. 2A shows the back side thereof, and FIG. 2B shows the front side thereof. ing. In this embodiment, an antenna coil (antenna) 4 in which a metal conductor is wired in a coil shape is wound in a coil shape over the entire circumference of the housing of the mobile phone and is embedded in the resin of the housing. Further, an IC module (IC component) 5 electrically connected to this is internally built-in and sealed in a part of the housing 1 of the mobile phone, here, in a thick portion at one upper corner.

In the embodiment of FIG. 2, since the antenna coil 4 is formed over the entire circumference of the casing 1 of the mobile phone, a large coil loop area can be secured and the communication distance characteristic is improved. The built-in antenna coil 4 is formed by winding a magnet wire 7 for several turns.
You may form by ID wiring.

FIG. 3 shows a third embodiment. This is the method according to the embodiment of FIG. 1 and has a configuration in which the antenna coil 4 is built-in and sealed in the thick portion of the edge portion of the rectangular battery portion cover 3. The antenna coil 4 of the battery cover 3 is formed by magnet wire or MID wiring. In the case of the magnet wire and the MID wiring, the wiring can be three-dimensionally formed, and the antenna can be formed even in the case 1 of the mobile phone having a three-dimensional structure with a relatively curved surface or the like. Therefore, in the form of FIG. 3, the antenna coil 4 is formed such that the laminated cross-sectional shape of the coil gradually becomes outwardly open along the curved shape of the inner wall surface of the edge portion of the battery cover 3, and the curved edge portion has almost the same thickness. It is transformed into a three-dimensional shape that fits in the center of the thick part.

FIG. 4 shows an example in which the inner wall surface of the edge portion of the battery cover 3 is substantially vertical, and the antenna coil 4 follows the shape of the vertical inner wall surface of the edge portion of the battery cover 3. , Are formed in a three-dimensional shape that is linearly stacked in the vertical direction. In addition, in the example of FIG. 4, most of the antenna coil 4 is formed so as to be internally sealed and partially exposed.

In the embodiment of FIG. 3, the antenna coil 4 is embedded in the thick portion of the edge of the battery cover 3, but as in the example of FIG. 4, most of the antenna coil 4 is built-in and partially sealed. Can be configured as an exposed state.

According to the above-described embodiments of FIGS. 1 to 4, an antenna in which a metal conductor is coiled and electrically connected to a part of the housing of a mobile phone that performs wireless communication such as a mobile phone or PHS. -Contact type IC consisting of integrated IC parts
By encapsulating the card function component, the information processing function of the non-contact type IC card, the RFID function and the like can be added to the mobile phone without increasing the size of the mobile phone body.

[0030]

As described above, according to the present invention, in order to add the non-contact type IC card function to the mobile phone, the non-contact type IC card functional component is not incorporated in the internal space of the mobile phone, Since it is built-in and sealed in a part of the case, that is, in the thick part, it is possible to incorporate the non-contact type IC card function without securing the space inside the case and the area surrounded by the loop of the antenna coil. Can be formed widely. Therefore, it is possible to add a non-contact type IC card function without increasing the size of the mobile phone itself, secure a large coil loop area, and improve the communication distance characteristics of the mobile phone.

Further, since the magnet wire or the MID wiring is used for forming the built-in antenna, the antenna can be formed in three dimensions, and even for the housing of the mobile phone having a three-dimensional structure such as a curved surface, The antenna can be easily formed.

[Brief description of drawings]

FIG. 1 shows a housing configuration of a mobile phone having a non-contact type IC card function according to a first embodiment of the present invention, in which (a) is a front view and (b) is a rear view. It is a figure.

FIG. 2 shows a housing configuration of a mobile phone having a non-contact type IC card function according to a second embodiment of the present invention, in which (a) shows a state in which a battery cover is attached,
(B) is a view showing a state in which the battery cover is removed.

3A and 3B show a third embodiment of the present invention in which an antenna is formed with a magnet wire and an MID wiring, wherein FIG. 3A is a rear view of a battery cover, and FIG. 3B is its BB cross section. It is a figure.

FIG. 4 shows a modification of the embodiment of FIG.
It is a BB sectional view of the battery part cover of (a).

FIG. 5 is a diagram showing a case of a conventional mobile phone.

FIG. 6 is a diagram showing a structure of a conventional non-contact type IC card.

[Explanation of symbols]

1 Mobile phone housing 2 battery 3 Battery cover 4 antenna coil 5 IC module

   ─────────────────────────────────────────────────── ─── Continued front page    (72) Inventor Toshiyuki Horikoshi             Hitachi, 1-1 Hidaka-cho, Hitachi City, Ibaraki Prefecture             Electric Cable Co., Ltd. F-term (reference) 2C005 MA33 MA40 MB10 NA09 QA01                       QC20 RA07                 5B035 BB09 BC00 CA23                 5B058 CA15 YA20                 5K023 AA07 DD06 LL06                 5K067 AA34 BB04 BB21 EE03 KK01                       KK13 KK17

Claims (5)

[Claims] 1. A casing of a mobile phone for wireless communication, comprising an antenna in which a metal conductor is wired in a coil shape and an IC component electrically connected to the antenna, which is formed in at least a part of the casing made of resin. A case for a mobile phone having a non-contact type IC card function, characterized in that a non-contact type IC card functional component is internally sealed. 2. A non-contact type IC card functional component comprising an antenna in which the metal conductor is wired in a coil shape and an IC component electrically connected to the antenna is part of the casing of the mobile phone and can be attached and detached. The casing for a mobile phone having a non-contact type IC card function according to claim 1, wherein the casing is built in and encapsulated in a battery cover. 3. An antenna, in which the metal conductor is wired in a coil shape, comprises an antenna coil wound in a coil shape over the entire circumference of a casing of a mobile phone and embedded in the casing. 3. The mobile phone casing having a non-contact type IC card function according to claim 2, wherein the IC component connected to is encapsulated in a part of the casing of the mobile phone. 4. A mobile phone having a non-contact type IC card function according to claim 1, wherein the antenna in which the metal conductor is wired in a coil shape is formed by winding a magnet wire. Case for. 5. The mobile phone having a non-contact type IC card function according to claim 1, wherein the antenna in which the metal conductor is wired in a coil shape is formed by MID wiring. Case.