KR100683835B1 - Dual Card Socket for Mobile Phone - Google Patents

Abstract

The dual card socket 1 for a mobile communication terminal according to the present invention is formed on one side of the socket frame 10, the socket frame 10, forming a whole skeleton and the card insertion hole for mounting the smart card ( Smart card slot 20 having 21 formed therein, terminals for smart card formed on one side of the socket frame 10 toward the smart card slot 20 to be connected to the terminals 3A of the smart card 3 30 is formed on the other side of the socket frame 10 so as to be stacked up and down with the smart card slot 20 with the socket frame 10 therebetween, and the card insertion hole 41 for mounting the memory card 4 is provided. Memory card slots 40 formed on the memory card slot 40 and the memory card terminals exposed on the other side of the socket frame 10 toward the memory card slot 40 so as to be connected to the terminals 4A of the memory card 4. A dual card socket for a mobile communication terminal comprising 50, a smart car Eight smart card terminals 30 installed by insert injection into the socket frame 10 to be connected to the eight terminals 3A of (3), and the socket frame at a position corresponding to the smart card terminals 30. Eight through holes 11 formed in the 10 and terminal mounting holes 12 formed in the socket frame 10 so that the terminals 50 for the memory card are inserted into the terminal fitting holes 12 The installed memory card terminals 50 are shorted by the thicknesses of the first smart card terminals 30A adjacent to the memory card terminals 50 and the socket frame 10 among the smart card terminals 30. It overlaps without being.

Description

Dual card socket for mobile communication terminal {Dual Card Socket for Mobile Phone}

1 is a perspective view of a dual card socket according to the present invention;

2 is a perspective view of another direction of the dual card socket according to the present invention;

3 is a schematic diagram showing an example of mounting a smart card and a memory card for a dual card socket according to the present invention;

4 is a schematic diagram of a conventional dual card socket applied to a mobile phone;

5 is a perspective view of a conventional dual card socket,

6 is a terminal layout of the standardized combination chip.

<Explanation of symbols for the main parts of the drawings>

1: dual card socket of the present invention 2: mobile communication terminal (mobile phone)

3: smart card 3A: smart card terminal

4: memory card 4A: memory card terminal

10: socket frame 11: through hole

11A: first through hole 11B: second through hole

12: terminal fitting 13: flesh

20: Smart card slot 21: Card insertion slot for smart card

30: terminal for smart card 30A: terminal for first smart card

30B: Terminal 40 for second smart card: Memory card slot

41: memory card insertion slot 50: memory card terminal

51: End of memory card terminal 52: Memory card recognition terminal

60, 70: cover

(Technology)

The present invention relates to a dual card socket for a mobile communication terminal, and more particularly, to a card socket of a dual structure is installed in the mobile communication terminal so that the smart card and the memory card can be mounted at the same time.

(Background)

As mobile phones and mobile communication terminals become more diverse and expanded in their functions, the required storage capacity is increasing. For example, a digital camera capable of capturing and storing images, or a mobile phone equipped with an MP3 function requires a lot of additional memory to store photo data or MP3 data in addition to its own storage capacity. .

However, embedding a large amount of memory in the main body of the mobile communication terminal for the large amount of memory required for such additional functions not only increases the price of the terminal, but also wastes the user who does not use the large capacity memory.

For this reason, the model does not have a built-in large-capacity memory directly in the mobile communication terminal, but has a memory card socket in the mobile communication terminal to selectively install and use a separate expansion memory card according to the user's mode of use. Is being released.

The memory card is mainly in the form of a card using flash memory. For example, a secure digital card (SD card), a memory stick (MS card), and a smart media card (SMC card). ), Compact Flash Card (CFC Card), Multimedia Card (Multi Media Card: MMC Card), etc. are standardized and used in various ways. Used.

As is widely known, smart cards equipped with IC chips (smart chips) equipped with microprocessors, operating systems, security modules, and memory for storage, computing, and security functions can be used in financial, communications, education, It is widely used in almost all fields of the information and communication society, such as administration and transportation, as a means of information recording, identity verification, electronic money, credit card or electronic bank account, etc. It may also be divided into contact cards, contactless cards, and contact / contactless cards (eg combination cards).

As the field of application of mobile communication terminals including mobile phones has been expanded, smart cards and mobile communication terminals have been functionally mounted by attaching smart cards to mobile communication terminals (e.g. mobile phones) rather than traditional plastic cards. Integrating.

A smart phone equipped with a smart card includes information on various authentications, information on a credit card for payment, a bankbook information, etc., and is used as an identification module, a traffic card, or a credit card. It is used for the purpose of electronic banking such as inquiry, transfer, withdrawal and check inquiry.

As described above, as the functions of the mobile communication terminal are further expanded and diversified, the mobile communication terminal needs a socket for a memory card for the removal of various memory cards and a socket for the smart card for the removal of the smart card. In this case, the user can install a card that fits the function required by the user to the card socket.

4 is a schematic diagram of a conventional card socket applied to a cellular phone, and FIG. 5 is a perspective view of a conventional card socket. FIG. 5 does not show the direction in which the mobile telephone is mounted (the mounting direction in FIG. 4), but in an inverted direction so that the terminals for the memory card are clearly expressed.

As shown in Figs. 4 and 5, the memory card 102 and the smart card 103 are superimposed on the card socket 100 mounted on the substrate 101 of the cellular phone so as to layer up and down.

The card socket 100 is formed on one side of the socket frame 110 and the socket frame 110, which is injection-molded with plastic forming the overall skeleton and is in electrical contact with the terminals 102A of the memory card 102. Memory card socket 120 having memory card terminals 121 formed thereon, and smart card terminals formed on the other side of the socket frame 110 and connected to terminals 103A of the smart card 103. And a smart card socket 130 formed therein, and each of the sockets 120 and 130 is inserted into the memory card 102 and the smart card 103. The terminals 121 and 131 are not separately mounted after the socket frame 110 is manufactured, but are integrally formed with the socket frame 110 by an insert method in the process of injection molding the socket frame 110 with plastic synthetic resin. Is formed.

Reference numeral 140 is a cover that is mounted on one side of the socket frame 110 to form a memory card socket 120, the cover is formed on the other side of the socket frame 110 to form a smart card socket 130 However, the city is omitted.

The conventional card socket 100 can minimize the space occupied by the card socket 100 in the mobile phone by adopting a dual structure in which the memory card 102 and the smart card 103 are stacked in a vertical stacking manner. The increase in the size of mobile phones and the increase in manufacturing cost are minimized.

The application of smart cards to mobile phones can be said to begin with a subscriber identity module (SIM) card used as a user identification module for roaming services in European GSM mobile phones. CDMA mobile phones are equipped with subscriber identification information in the mobile phone, so you can not change the device at your own convenience.However, GSM mobile phones can be equipped with the identification information on the SIM card. It can be characterized. In addition to the SIM card, a smart card as such an identification module includes a universal subscriber identity module (USIM), a user identity module (UIM) card, a removable user identity module (RUIM) card, and the like. It's a kind of smart card.

Combi card 200 having a contactless function as well as a contact function, as shown in Figure 6, the power supply terminal (C1), initialization input terminal (C2), clock terminal (C3), antenna terminal (C4), It is standardized into eight terminals of the ground terminal C5, the program voltage terminal C6 (not currently used), the serial data input / output terminal C7, and the antenna terminal C8.

SIM card, which is a contact smart card that transmits and receives data only through electrical contact with a mobile phone, has no antenna for wireless communication with an external reader (for example, a card reader), so unlike the combination card 200, the C4 and C8 terminals Only six terminals are used except for this, and for this reason, the conventional card socket 100 for mounting a SIM card to a mobile phone has six terminals corresponding to six terminals used in a SIM card, as shown in FIG. Only the terminals are arranged.

As described above, the conventional card socket 100 has six terminals corresponding to the smart card 103 and two terminals corresponding to the two antenna terminals of the combination card cannot be used. Therefore, in order to use the smart card 200 in the conventional card socket 100, by adding two antenna corresponding terminals as terminals for the smart card, the card socket 100 has to be designed and changed so that eight terminals are arranged. However, this design change does not simply add two terminals, but involves a number of design difficulties.

Specifically, the arrangement of the memory card 102 such as the smart card 103 and its terminal 103A and the Mini SD card and its terminal 102A has been standardized and corresponds to the size and size of the conventional card socket 100 accordingly. The positions of the terminals 121 and 131 are set according to the standard of the cards, and the memory card terminals 121 and the six smart card terminals 131 are substantially in the space of the limited card socket 100. Since it is arranged tightly without any free space, there is a limit that there is no space for adding two smart card terminals.

In addition, if the size of the conventional card socket 100 is enlarged to accommodate eight smart card terminals, it may be considered that the lack of space can be solved. As described above, the smart card 103 and its terminal 103A are described. And the positions of the terminals 121 and 131 corresponding to the size of the card socket 100 so as to correspond to the memory card 102 and its terminals 102A, and as shown in FIG. 103 is mounted on the back side of the mobile phone after the battery is removed, and the position of the card socket 100 on the substrate 101 is set so that the memory card 102 is mounted from the side of the mobile phone without removing the battery. When the size of the card socket 100 is expanded and two additional terminals for the smart card are arranged using the expanded space, the size of the card socket 100, the smart card 103, and the memory card 102 and the size of the card socket 100 are arranged. Ship of terminals Since the relationship does not match, and the circuit layout design of the mobile phone already standardized for the size of the conventional socket 100 is accompanied, it is difficult to change, and as a result, increasing the size of the card socket 100, the smart card 103 ) And the size of the memory card 102 and the arrangement of the terminals thereof are inevitably modified, and it is difficult to miniaturize the mobile phone. For this reason, the size expansion of the card socket 100 is difficult to apply in reality.

In addition, the socket frame 110 of the conventional card socket 100, as shown in Figure 5, through the smart card through hole 111 at a position corresponding to the six smart card terminals 131. And through the memory card through hole 112 in a position corresponding to the memory card terminal 121, so that the smart card terminals 131 and the memory card terminals 121 are formed through the through holes 111, By allowing elasticity to flow up and down at 112, these terminals 131 and 121 are brought into stable contact with the terminals of the smart card 103 and the memory card 102. Since the through-hole 112 is formed in a rectangular shape immediately adjacent to the six smart card terminals 131, the two smart card terminals are kept in a state where the structure of the conventional card socket 100 is maintained as it is. There is no room for additional placement.

An object of the present invention is to solve a design problem caused by increasing the number of smart card terminals from six to eight for the conventional dual card socket applied to the mobile communication terminal as described above.

An object of the present invention, in the design change from six to eight terminals for smart card in the conventional dual card socket applied to the mobile communication terminal, while maintaining the existing card socket size and six terminal arrangement for the smart card is added as it is It is to provide a dual card socket structure for a mobile communication terminal that can secure the space of the two smart card terminals securely.

According to the present invention there is provided a dual card socket for a mobile communication terminal.

The dual card socket for a mobile communication terminal according to the present invention comprises a socket frame forming an overall skeleton, a smart card slot formed on one side of the socket frame, and having a card insertion hole for mounting a smart card, of the smart card. Smart card terminals exposed on one side of the socket frame toward the smart card slot to be connected to the terminals, formed on the other side of the socket frame to be stacked up and down with the smart card slot with the socket frame therebetween And a memory card slot in which a card insertion port for mounting a memory card is formed, and terminals for memory card exposed on the other side of the socket frame toward the memory card slot so as to be connected to the terminals of the memory card.

According to a feature of the invention, the card socket of the present invention corresponds to the eight terminals for the smart card, the terminals for the smart card installed by insert injection into the socket frame to be connected to the eight terminals of the smart card. Eight through holes formed in the socket frame at the position, and the terminal mounting holes formed in the socket frame so that the terminals for the memory card is inserted.

According to a feature of the present invention, the terminals for the memory card installed in the terminal fitting holes are shorted by the thickness of the socket frame and the first smart card terminals adjacent to the memory card terminals among the smart card terminals. It is not overlapped.

Preferably, the ends of the terminals for the memory card in which the contacts connected to the terminals of the memory card are located are adjacent to the first through hole corresponding to the terminals for the first smart card and the terminals for the first smart card. It is located in the rib between the second through-hole corresponding to the terminals for the second smart card.

Preferably, the smart card inserted into the smart card slot is a smart card having six terminals, and among the eight smart card terminals, the terminals for the first smart card are not installed.

Preferably, the memory card insertion slot is formed toward the side of the mobile communication terminal, and the smart card insertion slot and the memory card insertion slot are formed at right angles.

Hereinafter, a dual card socket for a mobile communication terminal according to the present invention will be described in detail with reference to the accompanying drawings. The following embodiments are merely illustrative of the card socket according to the present invention, but are not intended to limit the scope of the present invention.

1 is a perspective view of a dual card socket according to the present invention, FIG. 2 is a perspective view of another direction of the dual card socket according to the present invention, and FIG. 3 shows an example of mounting a smart card and a memory card to the dual card socket according to the present invention. Schematic diagram.

As shown, the dual card socket 1 of the present invention is equipped with a smart card 3 and a memory card 4 in a mobile communication terminal (hereinafter, the mobile phone is described below) such as a mobile phone. As a socket for the purpose, like the conventional dual card socket, basically the socket frame 10, smart card slot 20, smart card terminals 30, memory card slot 40 and memory card terminals ( 50) is configured to include.

FIG. 1 shows an exemplary direction in which the dual card socket 1 of the present invention is mounted on the cellular phone 2, and FIG. 2 shows the card socket of FIG. 1 so that the terminals 50 for the memory card can be easily seen. 1) is shown in the inverted direction.

The dual card socket 1 according to the present invention has a dual structure in which a smart card slot 20 and a memory card slot 40 are formed in upper and lower layers in one socket frame 10, and preferably a battery phone is mounted. It is installed in the socket installation part provided in the back side of (2).

The socket frame 10 is a member forming the overall skeleton of the card socket 1, and is manufactured by injection molding a plastic synthetic resin.

The smart card slot 20 is a slot into which the smart card 3 is inserted and is formed on one side of the socket frame 10. 1 and 3, the smart card slot 20 is formed on the surface (one side, the upper surface in Figure 1) of the socket frame 10 which is the side facing the mounted battery, the memory card slot 40 is a socket frame ( The structure formed on the back surface (the other side, the lower surface in FIG. 1) of 10) is exemplarily shown.

The smart card slot 20 is provided with a card insertion opening 21 for mounting the smart card (3). 1 and 3 exemplarily illustrate a state in which the smart card insertion slot 21 is opened to the upper side of the socket frame 10 by way of example. In this embodiment, the smart card 3 separates the battery. And insert from top to bottom in the smart card slot (20). Of course, smart card insertion slot 21 may be configured to open to the other side of the socket frame (10).

If the battery is not removed as shown in FIG. 3, the smart card 3 cannot be mounted on the card socket 1 so that the smart card 3 having various kinds of information can be held in the mobile phone 2 more safely. have.

The smart card terminals 30 are terminals to which the terminal 3A of the smart card 3 inserted into the smart card insertion slot 21 is connected. Since the dual card socket 1 of the present invention is basically a socket for mounting a smart card 3 having eight terminals, such as a combination card, the terminals for smart cards as shown in FIGS. 30 is composed of eight terminals of four each up and down.

Of course, if the two first smart card terminals 30A adjacent to the memory card terminals 50 are omitted among the smart card terminals 30 and only the other six terminals 30 are installed, the SIM card may be installed. Likewise, a smart card having only six terminals can be used for the dual card socket 1 of the present invention.

Smart card terminals 30 are installed in the state exposed to one side of the socket frame 10 so that the contact point toward the smart card slot 20, the insert injection method when injection molding the socket frame 10 It is installed integrally.

The through-holes 11 are formed in the socket frame 10 at positions corresponding to the terminals 30 for the smart card, and the through holes 11 allow the elastic movement of the terminals 30 for the smart card. The terminals 3A of the smart card 3 are in stable contact with the terminals 30 for the smart card.

The memory card slot 40 is a slot for mounting the memory card 4 and is formed on the other side (lower surface, lower surface) of the socket frame 10, whereby the memory card slot 40 is formed between the socket frame 10. Placed in layers with the smart card slot 20 is placed in the overlap.

In the memory card slot 40, a card insertion hole 41 for mounting the memory card 4 is formed. 1 and 3 show an example in which the memory card insertion slot 41 is opened on the right side of the socket frame 10. Preferably, the memory card 4 may be directly mounted through the memory card insertion hole 41 exposed on the side of the mobile phone 2 without removing the battery. Of course, the memory card insertion slot 41 may be configured to open in a different direction of the socket frame 10.

The memory card terminals 50 are terminals to which the terminal 4A of the memory card 4 inserted into the memory card insertion slot 41 is connected. The memory card terminals 50 are installed in the socket frame 10 while being exposed to the other side of the socket frame 10 so that the contact points toward the memory card slot 40.

Since the dual card socket 1 of the present invention arranges eight smart card terminals 30, which are conventionally six, within an area of a limited socket frame 10, the memory card terminals 50 are smart. The card terminals 30 overlap with two first smart card terminals 30A, which are added to the sides adjacent to the memory card terminals 50.

Thus, since the terminal 30A for the first smart card and the terminals 50 for the memory card are arranged to overlap each other within a limited thickness of the socket frame 10, the terminals 50 for the memory card 50 are used for the smart card. In reality, it is very difficult to integrally install the socket frame 10 by insert injection, such as the terminal 30. When the terminals 50 for the memory card are also integrally installed by insert injection, the terminals 50 for the memory card 50 The possibility of a short occurring between the terminal and the first smart card terminal 30A becomes very large, so that product defects cannot be avoided.

Therefore, in the dual card socket 1 of the present invention, the terminals 30 and 50 are installed in the socket frame 10, and the terminals 30 for the smart card are inserted into the socket frame 10 by insert injection as in the prior art. Although integrally installed in the, the memory card terminals 50 are installed in a separate process after molding the socket frame 10.

To this end, when the socket frame 10 is molded, the terminal mounting holes 12 for installing the memory card terminals 50 are formed in advance, and the memory is mounted on the terminal mounting holes 12 of the molded socket frame 10. By inserting and inserting the terminal 50 for the card, the terminal 50 for the memory card is installed in the socket frame 10.

At this time, the side where the contacts of the memory card terminals 50 in contact with the terminal 4A of the memory card 4 are located is exposed by the memory card slot 40 formed on the other side of the socket frame 10. Since the first smart card terminals 30A are exposed to the smart card slot 20 formed on one side of the socket frame 10 with the thickness of the socket frame 10 interposed therebetween, the terminals for the memory card 10A. Even if 50 is disposed to overlap with the terminals for the first smart card 30A, the terminals are not shorted due to the thickness of the socket frame 10.

In order to further prevent a short between the terminals 50 for the memory card and the terminals 30 for the smart card, the terminals for the memory card in which the contacts connected to the terminals 4A of the memory card 4 are located ( It is preferable to extend the end 51 of 50 to a position where the terminals 30 for smart cards are not exposed.

That is, the end 51 of the terminals 50 for the memory card may be adjacent to the first through hole 11A corresponding to the terminals 30A for the first smart card and the terminals 30A for the first smart card. 2 is set to a length located in the flesh portion 13 of the socket frame 10 between the second through hole 11B corresponding to the terminals for smart card 30B.

By setting the position of the end 51 of the memory card terminals 50 in this way, even if the memory card terminals 50 are pressed toward the smart card terminal 30 by the inserted memory card 4 Since the salve 13 blocks the terminals of the memory card 50 from accessing the terminals 30 of the smart card, the terminals 50 of the memory card 50 and the terminals of the first smart card 30A are separated. Despite this overlap, the short between the terminals can be reliably prevented.

As the first smart card terminal 30A is added, the through hole 112 (see FIG. 5) for the memory card terminal described above with reference to FIG. 5 cannot be formed in the socket frame 10. In the dual card socket 1 of the present invention, the through holes 11 for the smart card terminal 30 exist, but the through holes for the memory card terminal 50 do not exist.

Covers (shells 60 and 70) shown in FIGS. 1 and 2 are assembled on the upper and lower surfaces of the socket frame 10, respectively, and the smart card slot 20 and the memory car are respectively disposed on the upper and lower surfaces of the socket frame 10, respectively. De slot 40 is formed. 1 and 2, reference numeral 52 denotes a memory card recognition terminal, which serves to detect whether or not the memory card 4 is inserted.

According to the dual card socket for a mobile communication terminal according to the present invention described above, the size of the card socket and the six terminals for the conventional smart card with respect to the conventional dual card socket standardized to install six smart card terminals It is possible to secure a space in which two additional smart card terminals can be arranged while maintaining the arrangement state, and the risk of short circuit caused by the overlap between the smart card terminal and the memory card terminal can be eliminated. .

Further, according to the dual card socket for a mobile communication terminal according to the present invention, the additional smart card terminal 30A is not provided in the first through hole 11A corresponding to the additional first smart card terminal 30A. If only six smart card terminals 30 are provided, a contact smart card such as a SIM card using only six terminals can also be used in the dual card socket of the present invention.

Claims (3)

The smart card slot 20, the smart card slot is formed on one side of the socket frame 10, and the card insertion opening 21 for mounting the smart card 3, the overall frame forming a skeleton, the smart Between the socket frame 10 and the smart card terminals 30 formed on one side of the socket frame 10 toward the smart card slot 20 so as to be connected to the terminals 3A of the card 3. The memory card slot 40 is formed on the other side of the socket frame 10 so as to be stacked up and down with the smart card slot 20 and the card insertion hole 41 for mounting the memory card 4 is formed. And memory card terminals 50 which are exposed on the other side of the socket frame 10 toward the memory card slot 40 so as to be connected to the terminals 4A of the memory card 4. In the dual card socket for a mobile communication terminal, Eight the smart card terminals 30 and the smart card terminals 30 installed by insert injection into the socket frame 10 so as to be connected to the eight terminals 3A of the smart card 3. Eight through holes 11 formed in the socket frame 10 and corresponding terminal mounting holes 12 formed in the socket frame 10 to be inserted into the memory card terminals 50 in a corresponding position. and, The memory card terminals 50 installed in the terminal fitting holes 12 may include first smart card terminals 30A adjacent to the memory card terminals 50 among the smart card terminals 30. And overlapped in a state that is not shorted by the thickness of the socket frame 10, dual card socket for a mobile communication terminal. The terminal 51 of the memory card terminals 50 in which the contact points connected to the terminals 4A of the memory card 4 are located is connected to the terminals for the first smart card. A rib between the first through hole 11A corresponding to 30A and the second through hole 11B corresponding to the second smart card terminals 30B adjacent to the first smart card terminals 30A. A dual card socket for a mobile communication terminal, characterized in that located at (13). The smart card (3) inserted into the smart card slot (20) is a smart card having six terminals (3A), and among the eight smart card terminals (30). The first smart card terminals (30A) is not installed, dual card socket for a mobile communication terminal.

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