Paster card

Abstract

The utility model discloses an SMD card, comprising a flexible circuit board with a built-in main control chip, and the surface of the flexible circuit board is provided with a first connection area, a second connection area and a third connection area; wherein the first connection area is used for connecting and communicating with a mobile phone, the second connection area and the third connection area are used for respectively connecting and communicating with two SIM cards, and the main control chip is used for connecting and communicating the two SIM cards with the mobile phone. The first connecting area, the second connecting area and the third connecting area are arranged on the surface of the flexible circuit board and are respectively connected and communicated with the mobile phone and the two SIM cards, so that the two SIM cards can be simultaneously accessed into a single mobile phone interface, and the main control chip is arranged in the flexible circuit board to connect and communicate the two SIM cards with the mobile phone, so that the mobile phone interface is convenient to use. Therefore, the two SIM cards can be accessed to the mobile communication network at the same time, a multi-card management function is realized, the use convenience of a user is improved, the trouble of frequently replacing the SIM cards is avoided, and the stability and safety of data transmission are ensured.

Description

TECHNICAL FIELD

[0001] The utility model relates to SIM patch card technical field, especially a kind of patch card. BACKGROUND

[0002] In SIM patch card technical field, the existing patch card is generally set as plane, and the length and width are consistent with SIM card, by being pasted on ordinary mobile phone SIM card, and the two are inserted into mobile phone card slot, using patch card as the bridging chip between mobile phone and SIM card, the communication instruction and data of mobile phone SIM card are simulated, mobile phone is connected with a SIM card, so that it can be inserted in special data when mobile phone and real SIM card communicate, and special purpose is realized, such as increasing network security control, transfer payment function and so on by patch card.

[0003] However, the current patch card simulates the communication instruction and data of SIM card, so only one real SIM card can access mobile communication network in the same period, therefore, how to provide a patch card to enable single mobile phone interface to access two SIM cards and two SIM cards to access mobile communication network simultaneously becomes a technical problem to be solved. UTILITY MODEL CONTENT

[0004] The utility model embodiment provides a kind of patch card, and single mobile phone interface can be accessed two SIM cards and two SIM cards are accessed mobile communication network simultaneously.

[0005] The utility model provides a kind of patch card, comprising:

[0006] Flexible circuit board, the main control chip is built-in in the flexible circuit board, first connection area, second connection area and third connection area are provided on the surface of the flexible circuit board;

[0007] Wherein, the first connection area is used to connect communication with mobile phone, and the second connection area and third connection area are used to connect communication with two SIM cards respectively, and the main control chip is used to connect communication with two SIM cards and mobile phone.

[0008] As a kind of implementation mode, the main control chip uses the chip that built-in eSIM simulation program.

[0009] As a kind of implementation mode, the flexible circuit board includes first connecting portion, folding portion and second connecting portion connected in sequence;

[0010] The first connection area and second connection area are set on the surface of the two sides of the first connecting portion, and the third connection area is set on the surface of one side of the second connecting portion.

[0011] As an implementation form, the first connecting part, the folding part and the second connecting part are folded to form a Z-shaped structure, and the second connecting area and the third connecting area are arranged face to face in the direction on the Z-shaped structure.

[0012] As an implementation form, the folding part is made of a soft plate in a spring shape.

[0013] As an implementation form, the length of the folding part is greater than the length of the first connecting part and the second connecting part, and the width of the folding part is less than or equal to the width of the first connecting part and the second connecting part.

[0014] As an implementation form, communication contacts are arranged on the first connecting area, the second connecting area and the third connecting area for connecting communication.

[0015] As an implementation form, the communication contact on the first connecting area is a conductive pad.

[0016] As an implementation form, the communication contacts on the second connecting area and the third connecting area are conductive bumps.

[0017] As an implementation form, the first connecting area, the second connecting area and the third connecting area are all rectangular structures, and the communication contact on the first connecting area, the communication contact on the second connecting area and the communication contact on the third connecting area are all uniformly distributed on the corresponding rectangular structures, respectively.

[0018] The embodiment of the utility model discloses a first connecting area, a second connecting area and a third connecting area are arranged on the surface of the flexible circuit board, and the three connecting areas are connected with a mobile phone and two SIM cards for communication respectively, so that a single mobile phone interface can access two SIM cards simultaneously, and a master control chip is built in the flexible circuit board to connect the two SIM cards with the mobile phone for communication, so that the two SIM cards can access a mobile communication network simultaneously, the multi-card management function is realized, the user's use convenience is improved, the trouble of frequently replacing the SIM card is avoided, and the stability and safety of data transmission are ensured. ACCURATE DRAWINGS

[0019] In order to more clearly illustrate the technical scheme of the embodiment of the utility model, the drawings needed in the embodiment description will be briefly introduced, and obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating labor.

[0020] Figure 1 A structure diagram of a patch card provided by the embodiment of the utility model is shown in the figure.

[0021] Figure 2 A structure schematic diagram of another visual angle in the patch card is provided for the embodiment of the utility model;

[0022] Figure 3 A communication connection schematic diagram of the patch card is provided for the embodiment of the utility model;

[0023] Figure 4 A folding example diagram of the patch card is provided for the embodiment of the utility model;

[0024] Figure 5 Another folding example diagram of the patch card is provided for the embodiment of the utility model;

[0025] Figure 6 A distribution example diagram of the communication contact in the patch card is provided for the embodiment of the utility model.

[0026] Identified in the figure:

[0027] 10, flexible circuit board; 11, first connecting part; 111, first connecting area; 112, second connecting area; 12, folding part; 13, second connecting part; 131, third connecting area;

[0028] 20, first SIM card;

[0029] 30, second SIM card;

[0030] 40, mobile phone double card card holder. DETAILED DESCRIPTION

[0031] The technical solutions in the embodiments of the utility model will be described clearly and completely below with reference to the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor fall within the protection scope of the utility model.

[0032] It should be understood that when used in the specification and the appended claims, the terms "comprise" and "include" indicate the presence of described features, integers, steps, operations, elements, and / or components, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, and / or groups thereof.

[0033] It should also be understood that the terms used in this utility model specification are only for the purpose of describing specific embodiments and do not intend to limit the utility model. As used in the utility model specification and the appended claims, the singular forms "a", "an" and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0034] It should be further understood that the term "and / or" used in the description of the utility model and the appended claims means any combination of one or more of the associated listed items and all possible combinations, and includes these combinations.

[0035] Please see the following Figures 1-3 The utility model embodiment provides a kind of patch card, specifically includes:

[0036] Flexible circuit board 10, built-in main control chip, the surface of flexible circuit board 10 is provided with first connection area 111, second connection area 112 and third connection area 131;

[0037] Wherein, first connection area 111 is used to connect communication with mobile phone, and second connection area 112 and third connection area 131 are used to connect communication with two SIM cards respectively, and main control chip is used to connect communication with two SIM cards and mobile phone.

[0038] In the embodiment, by being provided with first connection area 111, second connection area 112 and third connection area 131 on the surface of flexible circuit board 10, it is connected with mobile phone and two SIM cards (for the convenience of understanding, two SIM cards are marked as first SIM card 20 and second SIM card 30 in the drawing) communication respectively, so that single mobile phone interface can be accessed with two SIM cards simultaneously, and by being built-in main control chip in flexible circuit board 10, two SIM cards are connected with mobile phone communication, so that two SIM cards can be accessed with mobile communication network simultaneously, multiple card management function is realized, user use convenience is improved, the trouble of frequently changing SIM card is avoided, and the stability and security of data transmission are ensured.

[0039] In an embodiment, main control chip adopts the chip that is built-in eSIM analog program.

[0040] The chip (for the convenience of expression, it is called eSIM chip) that is built-in eSIM (Embedded SIM, embedded SIM) analog program is used as main control chip in the embodiment, so that two SIM cards are connected with mobile phone communication using eSIM chip, so that two SIM cards are accessed with mobile communication network simultaneously.

[0041] Specifically, the eSIM chip connects the signal interface of the mobile phone and the two SIM cards through the three connection areas on the flexible circuit board 10 to communicate. First, the mobile phone sends an instruction to query the performance and state of the eSIM chip, and analyzes the query data returned by the eSIM chip to obtain the number of working SIM cards carried by the eSIM chip. At this time, if the eSIM chip successfully connects two SIM cards, the mobile phone will be fed back information that there are two SIM cards and both of them are in a working state. Of course, if the eSIM chip only successfully connects one SIM card or fails to connect any SIM card (for example, the SIM card is not installed in the patch card or the SIM card is damaged), the corresponding information will also be fed back to the mobile phone.

[0042] Secondly, the mobile phone allocates a corresponding communication channel to the SIM card according to the number of working SIM cards. Each communication channel communicates with a SIM card respectively. In actual application, the mobile phone can distinguish the communication channel through the first byte (CLA byte, indicating the instruction class) of the communication apdu instruction. Correspondingly, the eSIM chip can also distinguish the communication channel through the first byte of the apdu instruction, so as to determine which SIM card the instruction of the mobile phone is forwarded to through this byte.

[0043] Through the above method, the mobile phone of the user can access two SIM cards at a time through one communication interface, and make the two SIM cards enter the mobile network at the same time, that is, two SIM cards can be installed in one card slot, so as to realize the multi-card management function, for example, the network security control, transfer payment function and the like can be added to the two SIM cards respectively.

[0044] In specific embodiments, the communication protocol between the mobile phone and the master control chip, and between the master control chip and the SIM card can be flexibly designed according to actual needs to ensure efficient and safe data transmission, for example, the connection can be made through the ISO7816 protocol interface chip. In addition, specific chips can be selected to realize the function of eSIM simulation according to actual needs, for example, SK32G101 chip or other chips can be selected.

[0045] In an embodiment, the flexible circuit board 10 includes a first connection part 11, a folding part 12 and a second connection part 13 connected in sequence.

[0046] The first connection area 111 and the second connection area 112 are arranged on the two side surfaces of the first connection part 11 in a back-to-back manner, and the third connection area 131 is arranged on one side surface of the second connection part 13.

[0047] In the embodiment, the flexible circuit board 10 is composed of the first connecting part 11, the folding part 12 and the second connecting part 13 connected in sequence. Two SIM cards are connected with the mobile phone in communication by setting the first connecting area 111 and the second connecting area 112 on the two side surfaces of the first connecting part 11 respectively and by setting the third connecting area 131 on one side surface of the second connecting part 13. Meanwhile, the flexible circuit board 10 can be folded flexibly by the design of the folding part 12, thereby reducing the total thickness of the patch card after two SIM cards are pasted, making it easier to insert into the mobile phone card slot, effectively saving the internal space of the mobile phone, and also being able to support the use of the original card holder of the mobile phone.

[0048] In the specific embodiment, the settings of the second connecting area 112 and the third connecting area 131 are only for easy understanding, and in fact, there is no priority. Only two of them need to be set to correspond to two SIM cards, for example, the first connecting area 111 and the third connecting area 131 can also be set on the two side surfaces of the first connecting part 11, and the second connecting area 112 is set on one side surface of the second connecting part 13. Similarly, the first SIM card 20 and the second SIM card 30 also have no priority.

[0049] In combination Figure 4 and Figure 5 As shown in the drawings, in an embodiment, the first connecting part 11, the folding part 12 and the second connecting part 13 are folded to form a Z-shaped structure, and the second connecting area 112 and the third connecting area 131 are arranged face to face in the direction on the Z-shaped structure.

[0050] In the embodiment, by the Z-shaped structure design, the flexible circuit board 10 can be closely pasted and inserted into the mobile phone double card holder 40 after being folded, thereby further reducing the occupied space. Specifically, since the first connecting area 111 and the second connecting area 112 are set on the two side surfaces of the first connecting part 11, and the third connecting area 131 is set on one side surface of the second connecting part 13, after the first connecting part 11, the folding part 12 and the second connecting part 13 are folded to form a Z-shaped structure, the first connecting area 111, the second connecting area 112 and the third connecting area 131 are arranged in the vertical direction (or the third connecting area 131, the second connecting area 112 and the first connecting area 111 are arranged in the vertical direction), and the mounting position of the first SIM card 20 is formed between the first connecting part 11 and the folding part 12, and the mounting position of the second SIM card 30 is formed between the folding part 12 and the second connecting part 13, so that the two SIM cards can be embedded in the mounting position and connected with the second connecting area 112 and the third connecting area 131, and then the first connecting area 111 on the first connecting part 11 is connected with the mobile phone communication interface, realizing data transmission.

[0051] In specific embodiments, under the premise of ensuring that the first connection part 11 and the folding part 12 form a first SIM card 20 installation position, and the folding part 12 and the second connection part 13 form a second SIM card 30 installation position, the folding direction of the first connection part 11, the folding part 12 and the second connection part 13 can be changed according to actual scene needs, so that the first connection part 11, the folding part 12 and the second connection part 13 are folded to form an S-shaped structure (that is, the folding direction is opposite to that when folded into a Z-shaped structure), so that two SIM cards can also be installed and communication connection can be achieved. In addition, the folding part 12 can be made of a soft plate in the shape of a spring, so that it can be stretched and adjusted when installing the SIM card, improving the flexibility and adaptability of installation.

[0052] In an embodiment, the folding part 12 is made of a soft plate in the shape of a spring.

[0053] In the present embodiment, the folding part 12 is made of a soft plate in the shape of a spring, so that the first connection part 11 and the second connection part 13 can have a certain expansion size, thereby improving the folding flexibility and improving the installation adaptability and flexibility of the flexible circuit board 10.

[0054] In an embodiment, the length of the folding part 12 is greater than the length of the first connection part 11 and the second connection part 13, and the width of the folding part 12 is less than or equal to the width of the first connection part 11 and the second connection part 13.

[0055] In the present embodiment, the length of the folding part 12 is greater than the length of the first connection part 11 and the second connection part 13, so that the stable Z-shaped structure after folding can be ensured, and the situation of being unable to fold or unstable folding due to insufficient length can be avoided. At the same time, the width of the folding part 12 is less than or equal to the width of the first connection part 11 and the second connection part 13, so as to ensure that the flexible circuit board 10 after folding does not affect the reasonable use of the internal space of the mobile phone. It can be understood that the length and width of the first connection part 11 and the second connection part 13 can be flexibly adjusted according to actual needs to adapt to the internal structure of different mobile phone models.

[0056] In an embodiment, the first connection region 111, the second connection region 112 and the third connection region 131 are provided with communication contacts for connecting communication.

[0057] In the present embodiment, the communication contacts are respectively arranged on the first connection region 111, the second connection region 112 and the third connection region 131, so as to realize effective connection with the internal circuit of the mobile phone by using the communication contacts, and ensure the stability and reliability of data transmission.

[0058] In a specific application scenario, the communication contacts arranged on the three connection regions each include a Vcc (C1, volt current capacer, power voltage), a Gnd (C5, ground, ground), a Rst (C2, reset, reset), a Clk (C3, clock, clock signal), an IO (C7, input output, input output), and the like, to form a communication interface of the master control chip and the mobile phone card slot contact points, and a communication interface of the master control chip and the two SIM cards. In addition, as shown in Figure 6 As shown in the figure, the positions of the communication contacts arranged on the three connection regions each meet the position requirements of the C1, C2, C3, C5, and C7 contacts described in section 4.0.4-4FF of ETSI TS102 221V11.1.0 (2013-11), thereby ensuring the compatibility of the communication contacts and enabling precise connection with the contacts of the mobile phone interface.

[0059] In a specific embodiment, the communication contacts on the first connection region 111 are conductive pads.

[0060] Further, the communication contacts on the second connection region 112 and the third connection region 131 are conductive bumps.

[0061] In this embodiment, the first connection region 111 is directly connected with the mobile phone communication interface through the conductive pads, and the second connection region 112 and the third connection region 131 are connected with the SIM cards through the conductive bumps. This is because the mobile phone communication interface is generally provided with a bump structure, and therefore the conductive pads can better match the interface. The surface of the SIM card is generally flat, and the conductive bumps can effectively contact to ensure stable signal transmission. Of course, in a specific application scenario, the shape and layout of the contacts can be flexibly adjusted according to different mobile phone models and SIM card specifications to achieve the best connection effect.

[0062] In a specific embodiment, the first connection region 111, the second connection region 112, and the third connection region 131 each have a rectangular structure, and the communication contacts on the first connection region 111, the communication contacts on the second connection region 112, and the communication contacts on the third connection region 131 are each uniformly distributed on the corresponding rectangular structure.

[0063] In this embodiment, the first connection region 111, the second connection region 112, and the third connection region 131 each have a rectangular structure, and the communication contacts on the three connection regions are each uniformly distributed on the corresponding rectangular structure, ensuring that each contact can accurately correspond to the internal circuit of the mobile phone and the interface of the SIM card, thereby ensuring the stability of data transmission, and also enabling optimization of the overall circuit layout.

[0064] The various embodiments described in the specification are presented for purposes of illustration and description. Each of the embodiments highlight a different aspect of the application. The embodiments are not mutually exclusive, and can be combined in various manners. The embodiments disclosed herein are not exhaustive of the ways in which the application can be practiced. Numerous modifications and adaptations will be apparent to those skilled in the art. The embodiments disclosed herein are merely exemplary in nature and are not intended to limit the scope of the application.

[0065] It should also be noted that the terms "first", "second", and the like, do not denote any order, quantity, combination, or importance, but rather are used to identify one element from another. Also, the terms "comprises", "comprising", or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but can also include other elements not expressly listed or inherent to such process, method, article, or apparatus. An element proceeded by "comprises... a" does not, without more constraints, exclude the existence of additional identical elements in the process, method, article, or apparatus that comprises the element.

Claims

1. A patch card, characterized in that, The application relates to a flexible circuit board (10) with a built-in main control chip, wherein a first connecting area (111), a second connecting area (112) and a third connecting area (131) are arranged on the surface of the flexible circuit board (10). The first connecting area (111) is used for connecting communication with a mobile phone, the second connecting area (112) and the third connecting area (131) are used for connecting communication with two SIM cards respectively, and the main control chip is used for connecting communication between the two SIM cards and the mobile phone. The main control chip is a chip with an eSIM simulation program.

2. The patch card of claim 1, wherein, The flexible circuit board (10) comprises a first connecting part (11), a folding part (12) and a second connecting part (13) connected in sequence.

3. The patch card of claim 1, wherein, The first connecting area (111) and the second connecting area (112) are arranged on the surfaces of the two sides of the first connecting part (11) in a back-to-back mode, and the third connecting area (131) is arranged on one side surface of the second connecting part (13). The first connecting part (11), the folding part (12) and the second connecting part (13) are folded to form a Z-shaped structure, and the second connecting area (112) and the third connecting area (131) are arranged in a face-to-face mode on the Z-shaped structure.

4. The patch card of claim 3, wherein, The folding part (12) is made of a spring-shaped soft plate.

5. The patch card of claim 3, wherein, The length of the folding part (12) is greater than the lengths of the first connecting part (11) and the second connecting part (13), and the width of the folding part (12) is less than or equal to the widths of the first connecting part (11) and the second connecting part (13).

6. The patch card of claim 4, wherein, Communication contacts for connecting communication are arranged on the first connecting area (111), the second connecting area (112) and the third connecting area (131).

7. The patch card of claim 4, wherein, The communication contacts on the first connecting area (111) are conductive pads.

8. The patch card of claim 7, wherein, The communication contacts on the second connecting area (112) and the third connecting area (131) are conductive bumps.

9. The patch card of claim 7, wherein, The first connecting area (111), the second connecting area (112) and the third connecting area (131) are all rectangular structures, and the communication contacts on the first connecting area (111), the second connecting area (112) and the third connecting area (131) are evenly distributed on the corresponding rectangular structures respectively.

10. The patch card of claim 7, wherein, ​

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