Multi-network integrated SIM card
By integrating multiple SIM cards from different operators into a single SIM card and equipping it with a control chip, automatic signal switching is achieved, solving the problems of complex SIM card circuitry and high cost, thereby improving the online rate of terminal devices and reducing operating costs.
Patent Information
- Application Number
- CN202423319925.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-31
- Publication Date
- 2026-01-23
- Estimated Expiration
- 2034-12-31
AI Technical Summary
The existing technology for SIM cards that integrate multiple operators has a complex circuit structure and high cost.
Design a multi-network unified SIM card by integrating SIM cards from at least two operators on a printed circuit board and equipping it with a control chip. The SIM card will automatically switch with the terminal device for data interaction based on the signal strength, simplifying the circuit structure and eliminating the need for a switch.
This simplifies the SIM card circuit structure, reduces costs, increases the online rate of terminal devices, and reduces enterprise operating costs.
Smart Images
Figure CN223829467U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to communication technical field especially relates to a multi -network unification's SIM card. BACKGROUND
[0002] The internet of things equipment needs to be connected with the background through the network when using. With the rapid development of the internet of things technology, all big operators are building networks to make network signals cover as large a range as possible.
[0003] At present, in some areas, the signal of a certain operator is strong, and the signal of another operator is weak, therefore, in order to make the internet of things equipment work in the environment of strong signal, the SIM card of multiple operators is inserted in the internet of things equipment to switch the SIM card of the corresponding operator according to the signal strength. However, the current SIM card of multiple operators is switched by setting a switch between each SIM card and the ground end, and the switching of the SIM card is realized by controlling the switch. The circuit structure of the SIM card of multiple operators is complex, and the cost is high.
[0004] Therefore, the prior art still needs to be improved and developed. UTILITY MODEL CONTENTS
[0005] In view of the above problems of the prior art, the utility model aims at providing a multi -network unification's SIM card to solve the problems of the circuit structure of the SIM card of multiple operators being complex and the cost being high.
[0006] The utility model provides a multi -network unification's SIM card, which comprises:
[0007] The shell with the first accommodating chamber is matched with the SIM card mounting groove of the terminal equipment;
[0008] The printed circuit board is arranged in the first accommodating chamber, and the printed circuit board is integrated with at least two SIM cards of operators and a control chip for switching the corresponding SIM card on the printed circuit board and the terminal equipment according to the signal strength, and the control chip is connected with the SIM card on the printed circuit board;
[0009] The gold finger for connecting the multi -network unification's SIM card and the terminal equipment is connected with the control chip and the SIM card on the printed circuit board, and the gold finger is arranged on the shell.
[0010] Further, the shell comprises a first sub-shell and a second sub-shell, the second sub-shell is sealed on the first sub-shell, and the first accommodating chamber is arranged in the first sub-shell.
[0011] The printed circuit board is integrated with SIM cards of three operators.
[0012] The printed circuit board is provided with a first area and a second area, the second area is located at one side of the first area, the control chip is arranged on the first area, and the SIM cards of the three operators are arranged side by side on the second area.
[0013] The gold finger is located at the bottom of the first sub-housing and extends out of the lower surface of the first sub-housing.
[0014] The gold finger comprises a power supply pin, a grounding pin, a reset pin, a clock pin and a data pin.
[0015] The power supply pin of the control chip is connected with the power supply pin in the gold finger, and the power supply pin of the SIM card integrated on the printed circuit board is connected in parallel to the connection path of the power supply pin of the control chip and the power supply pin in the gold finger.
[0016] The grounding pin of the control chip is connected with the grounding pin in the gold finger, and the grounding pin of the SIM card integrated on the printed circuit board is connected in parallel to the connection path of the grounding pin of the control chip and the grounding pin in the gold finger.
[0017] The reset pin of the control chip is connected with the reset pin in the gold finger, and the reset pin of the SIM card integrated on the printed circuit board is connected in parallel to the connection path of the reset pin of the control chip and the reset pin in the gold finger.
[0018] The clock pin of the control chip is connected with the clock pin in the gold finger, and the clock pin of the SIM card integrated on the printed circuit board is connected in parallel to the connection path of the clock pin of the control chip and the clock pin in the gold finger.
[0019] The data pin of the control chip is connected with the data pin in the gold finger.
[0020] The data input / output port of the SIM card on the printed circuit board is connected with one data input / output port of the control chip.
[0021] The thickness of the shell is in the range of 0.83-0.89mm.
[0022] The thickness of the shell is 0.86mm.
[0023] The utility model provides a kind of multi-network SIM card of one, comprising: the shell with first accommodating chamber, the shell is matched with the SIM card installation slot of terminal equipment;Printed circuit board is set in the first accommodating chamber, at least two operators' SIM card and the control chip for switching the SIM card on the printed circuit board and the terminal equipment carry out data interaction are integrated on the printed circuit board, the control chip is connected with the SIM card on the printed circuit board;Gold finger for the multi-network SIM card of one and terminal equipment connection, the gold finger is connected with the control chip and the SIM card on the printed circuit board, and the gold finger is set on the shell.In the utility model technical scheme, at least two operators' SIM card is integrated on printed circuit board, when SIM card and terminal equipment interaction, corresponding SIM card and terminal equipment are switched to carry out data interaction by control chip according to signal strength, without switching switch, and the circuit structure of this multi-network SIM card is simple, and cost is low. BRIEF DESCRIPTION OF DRAWINGS
[0024] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or prior art, the drawings needed to be used in the embodiment or prior art description will be briefly introduced as follows, obviously, the drawings in the following description are only some embodiments of the utility model, and for the person skilled in the art, other drawings can be obtained according to the structure shown in these drawings without creating labor.
[0025] Figure 1 It is the structure diagram that printed circuit board is integrated with SIM card and control chip in the utility model.
[0026] Figure 2 It is the front view of the multi-network SIM card of one of the utility model.
[0027] Figure 3 It is the plan view of the multi-network SIM card of one of the utility model.
[0028] Figure 4 It is the bottom view of the multi-network SIM card of one of the utility model.
[0029] Figure 5 It is the circuit structure diagram of the multi-network SIM card of one in an embodiment.
[0030] Mark in drawing: 10, SIM card;11, control chip;12, gold finger;13, shell;131, first sub-housing;132, second sub-housing;14, printed circuit board. DETAILED DESCRIPTION
[0031] In order to have a clearer understanding of the technical features, objects and effects of the present application, the specific embodiments of the present application will be described in detail with reference to the drawings. In the following description, it should be understood that the directions or positional relationships indicated by "front", "back", "upper", "lower", "left", "right", "vertical", "horizontal", "vertical", "horizontal", "top", "bottom", "inner", "outer", "head", "tail" and the like are based on the directions or positional relationships shown in the drawings, constructed and operated in a particular direction, and are only for the convenience of describing the present technical solution, and do not indicate that the indicated device or element must have a particular direction, therefore it cannot be understood as a limitation of the present application.
[0032] In addition, the terms "first", "second" are only for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.
[0033] In the present application, unless otherwise specifically defined and limited, the terms "installation", "connection", "connection", "fixing" and the like should be broadly understood, for example, it can be connected, or it can be detachable, or it can be integrated; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium; it can be the internal communication of two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.
[0034] As shown in Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5 , a multi-network SIM card provided by the present application can include a shell 13, a printed circuit board 14 and a gold finger 12.
[0035] The shell 13 has a first accommodating chamber, and the shell 13 matches a SIM card mounting slot of a terminal device; a printed circuit board 14 (PCB) is arranged in the first accommodating chamber, and the printed circuit board 14 is integrated with at least two SIM cards 10 of operators and a control chip 11; the control chip 11 is connected with the SIM cards 10 on the printed circuit board 14, and the control chip 11 is used for switching the corresponding SIM cards 10 on the printed circuit board 14 to interact with the terminal device according to signal strength; a gold finger 12 is connected with the control chip 11 and the SIM cards 10 on the printed circuit board 14, and the gold finger 12 is arranged on the shell 13, and the gold finger 12 is used for connecting the multi-network SIM card with the terminal device.
[0036] Here, the shell 13 matches the SIM card mounting slot of the terminal device means that the shell 13 can be mounted into the SIM card mounting slot of the terminal device, and the gold finger 12 on the shell 13 mounted in the SIM card mounting slot of the terminal device is connected with the terminal device, that is, the multi-network SIM card 10 is connected with the terminal device.
[0037] In the embodiment, the terminal device can be an Internet of Things device. When the SIM cards 10 are integrated on the printed circuit board 14, the SIM cards 10 of corresponding operators can be integrated according to the application environment, for example, in the environment applied by the terminal device, the network signal of a mobile operator and the network signal of a China Unicom operator are stronger, so the SIM cards 10 of the mobile operator and the SIM cards 10 of the China Unicom operator can be integrated on the printed circuit board 14; for another example, in the environment applied by the terminal device, the network signal of a mobile operator and the network signal of a China Telecom operator are stronger, so the SIM cards 10 of the mobile operator and the SIM cards 10 of the China Telecom operator can be integrated on the printed circuit board 14; of course, the SIM cards 10 of three operators can also be integrated on the printed circuit board 14, that is, the SIM cards 10 of the mobile operator, the SIM cards 10 of the China Unicom operator and the SIM cards 10 of the China Telecom operator are integrated on the printed circuit board 14.
[0038] When the multi-network SIM card is switched, the corresponding SIM card 10 is switched to interact with the terminal device according to signal strength by the control chip 11, without the need of a switching switch, the circuit structure of the multi-network SIM card is simple, and the cost is low; in addition, since the multi-network SIM card is integrated with at least two SIM cards 10 of operators, the terminal device applying the multi-network SIM card can be timely applied to a regional environment, the long connection of the terminal device is ensured, the online rate of the terminal device is improved, and the operation cost of an enterprise is reduced.
[0039] In addition, this multi-network SIM card is designed in accordance with the relevant ISO / IEC7816 standards and is designed according to industry-standard practices. It can be directly replaced with a single network card without any replacement barriers, making it convenient to switch between networks and reducing switching costs.
[0040] In some embodiments, the housing 13 may include a first sub-housing 131 and a second sub-housing 132, the second sub-housing 132 being sealed onto the first sub-housing 131, and a first receiving chamber being disposed in the first sub-housing 131.
[0041] Specifically, when setting the first receiving chamber, it is necessary to take into account the specific dimensions of the printed circuit board 14. That is, it is necessary to ensure that the printed circuit board 14 can be placed in the first receiving chamber and that the placement of the printed circuit board 14 is not affected after the second sub-shell 132 and the first sub-shell 131 are sealed together.
[0042] In some embodiments, such as Figure 1 , Figure 5 As shown, the printed circuit board 14 integrates SIM cards 10 from three different operators.
[0043] Specifically, the printed circuit board 14 integrates SIM cards 10 from three different operators: China Mobile, China Unicom, and China Telecom. These SIM cards are connected to the control chip 11 and the gold finger 12, respectively. Since the signals from these three operators can essentially provide full coverage—meaning that at least one operator's network signal is strong in any given area—the integration of SIM cards 10 from all three operators on the printed circuit board 14 further ensures the online rate of the terminal device.
[0044] Furthermore, when setting up the SIM cards 10 of the three operators, a first area and a second area can be divided on the printed circuit board 14. The second area is located on one side of the first area, the control chip 11 is set on the first area, and the SIM cards 10 of the three operators are set side by side on the second area.
[0045] Specifically, the first and second regions can be arranged side by side when dividing the region. The SIM cards 10 of the three operators are arranged sequentially on one side of the second region. The control chip 11 and the SIM cards 10 of the three operators can be soldered onto the printed circuit board 14. Solder paste can be used for soldering.
[0046] In this embodiment, the division of the first and second regions makes the printed circuit board 14, which integrates the control chip 11 and the SIM cards 10 of the three operators, neat and beautiful, and makes wiring more convenient when the SIM cards 10 of the three operators are connected to the control chip 11.
[0047] It should be noted that the area where the control chip is located is the first area; the area where the SIM card integrated on the printed circuit board is located is the second area, for example, when two SIM cards of two operators are integrated on the printed circuit board, the area where the two operators are located is the second area; for another example, when three SIM cards of three operators are integrated on the printed circuit board, the area where the three operators are located is the second area.
[0048] In some embodiments, as shown in Figure 4 The gold finger 12 is located at the bottom of the first sub-housing 131 and extends out of the lower surface of the first sub-housing 131.
[0049] Specifically, the gold finger 12 includes a power supply pin, a ground pin, a reset pin, a clock pin, and a data pin; the position of the power supply pin in the gold finger 12 is the position of the VCC pin in Figure 4 The reset pin in the gold finger 12 is the RESET pin in Figure 4 The clock pin in the gold finger 12 is the CLOCK pin in Figure 4 The ground pin in the gold finger 12 is the GND pin in Figure 4 The data pin in the gold finger 12 is the DATA pin in Figure 4 The VPP pin in Figure 4 is the programming / erasing voltage pin in the gold finger 12.
[0050] As shown in Figure 4 , when the power supply pin, the reset pin, the clock pin, the ground pin, the data pin, and the programming / erasing voltage pin in the gold finger 12 are set, the power supply pin, the reset pin, and the clock pin form a group and are arranged side by side in sequence at the bottom of the first sub-housing 131, and the ground pin, the data pin, and the programming / erasing voltage pin form a group and are arranged side by side in sequence at the bottom of the first sub-housing 131, and the positions of the ground pin, the data pin, and the programming / erasing voltage pin are parallel to the positions of the power supply pin, the reset pin, and the clock pin.
[0051] As shown in Figure 5As shown, the power supply pin of the control chip 11 is connected with the power supply pin in the gold finger 12, the power supply pin of the SIM card 10 integrated on the printed circuit board 14 is connected in parallel to the connection path of the power supply pin of the control chip 11 and the power supply pin in the gold finger 12; the ground pin of the control chip 11 is connected with the ground pin in the gold finger 12, the ground pin of the SIM card 10 integrated on the printed circuit board 14 is connected in parallel to the connection path of the ground pin of the control chip 11 and the ground pin in the gold finger 12; the reset pin of the control chip 11 is connected with the reset pin in the gold finger 12, the reset pin of the SIM card 10 integrated on the printed circuit board 14 is connected in parallel to the connection path of the reset pin of the control chip 11 and the reset pin in the gold finger 12; the clock pin of the control chip 11 is connected with the clock pin in the gold finger 12, the clock pin of the SIM card 10 integrated on the printed circuit board 14 is connected in parallel to the connection path of the clock pin of the control chip 11 and the clock pin in the gold finger 12; the data pin of the control chip 11 is connected with the data pin in the gold finger 12; the data input / output port of the SIM card 10 on the printed circuit board 14 is connected with one data input / output port of the control chip 11 respectively.
[0052] Specifically, when the control chip 11 is selected, the number of the SIM cards 10 integrated on the printed circuit board 14 needs to be considered, and the number of the data input / output ports of the control chip 11 needs to be ensured to be equal to or greater than the number of the SIM cards 10 integrated on the printed circuit board 14, that is, the number of the IO ports of the control chip 11 is equal to or greater than the number of the SIM cards 10 integrated on the printed circuit board 14. The control chip 11 can be any single-chip microcomputer that can meet the above requirements, which is not limited here.
[0053] In some embodiments, the thickness of the shell 13 is in the range of 0.83-0.89mm.
[0054] Specifically, the thickness of the shell 13 is in the range of 0.83-0.89mm, that is, the sum of the thicknesses of the first sub-shell 131 and the second sub-shell 132 after the second sub-shell 132 is sealed on the first sub-shell 131 is in the range of 0.83-0.89mm. The sum of the thicknesses of the first sub-shell 131 and the second sub-shell 132 after the second sub-shell 132 is sealed on the first sub-shell 131 can be 0.83mm, 0.84mm, 0.845mm, 0.85mm, 0.86mm, 0.89mm, etc. In a specific embodiment, the thickness of the shell 13 is 0.86mm.
[0055] In summary, the utility model provides a kind of multi-network SIM card of one, with following effects:
[0056] The multi-network SIM card is simple in circuit structure and low in cost, without a switch, and the corresponding SIM card 10 is switched to interact with the terminal device according to the signal strength by the control chip 11.
[0057] It can be understood that the above embodiments only express the preferred embodiments of the present application, which are described in detail, but cannot be understood as the limitation of the patent scope of the present application; it should be pointed out that the above technical features can be freely combined without departing from the concept of the present application for ordinary skilled in the art, and some modifications and improvements can be made, which all belong to the protection scope of the present application; therefore, any equivalent transformation and modification within the scope of the claims of the present application shall belong to the scope of the claims of the present application.
Claims
1. A multi-network unified SIM card, characterized in that, include: A housing having a first receiving chamber, the housing being matched with the SIM card mounting slot of a terminal device; A printed circuit board is disposed in the first receiving cavity. The printed circuit board integrates at least two SIM cards from two operators and a control chip for switching the corresponding SIM card on the printed circuit board to interact with the terminal device based on the signal strength. The control chip is connected to the SIM card on the printed circuit board. The gold finger is used for connecting the multi-network SIM card to the terminal device. The gold finger is connected to the control chip and the SIM card on the printed circuit board. The gold finger is disposed on the housing.
2. The multi-network integrated SIM card according to claim 1, characterized in that, The housing includes a first sub-housing and a second sub-housing, wherein the second sub-housing is sealed onto the first sub-housing, and the first receiving chamber is disposed within the first sub-housing.
3. The multi-network integrated SIM card according to claim 2, characterized in that, The printed circuit board integrates SIM cards from three different mobile network operators.
4. The multi-network integrated SIM card according to claim 3, characterized in that, The printed circuit board has a first region and a second region, the second region being located on one side of the first region, the control chip being disposed on the first region, and the SIM cards of the three operators being disposed side by side on the second region.
5. The multi-network integrated SIM card according to claim 3, characterized in that, The gold finger is located at the bottom of the first sub-shell and extends out of the lower surface of the first sub-shell.
6. The multi-network integrated SIM card according to claim 5, characterized in that, The gold fingers include: power supply pins, ground pins, reset pins, clock pins, and data pins; The power supply pin of the control chip is connected to the power supply pin of the gold finger, and the power supply pin of the SIM card integrated on the printed circuit board is connected in parallel to the connection path between the power supply pin of the control chip and the power supply pin of the gold finger. The ground pin of the control chip is connected to the ground pin in the gold finger, and the ground pin of the SIM card integrated on the printed circuit board is connected in parallel to the connection path between the ground pin of the control chip and the ground pin in the gold finger. The reset pin of the control chip is connected to the reset pin in the gold finger, and the reset pin of the SIM card integrated on the printed circuit board is connected in parallel to the connection path between the reset pin of the control chip and the reset pin in the gold finger. The clock pin of the control chip is connected to the clock pin in the gold finger, and the clock pin of the SIM card integrated on the printed circuit board is connected in parallel to the connection path between the clock pin of the control chip and the clock pin in the gold finger. The data pins of the control chip are connected to the data pins in the gold finger; The data input / output ports of the SIM card on the printed circuit board are respectively connected to one of the data input / output ports of the control chip.
7. The multi-network integrated SIM card according to claim 1, characterized in that, The thickness of the shell is in the range of 0.83-0.89 mm.
8. The multi-network integrated SIM card according to claim 7, characterized in that, The thickness of the shell is 0.86 mm.