CN220753940U - Multifunctional conversion board for SIM card - Google Patents

Abstract

The utility model provides a multifunctional conversion board of a SIM card, which comprises a card seat connector, an electric connecting wire and a substrate; the clamping seat connector is arranged on a clamping seat of the equipment to be tested; two ends of the electric connecting wire are respectively connected with the clamping seat connector and the substrate; the base plate is provided with a switch circuit and a plurality of clamping seats, the clamping seats comprise at least two different types of clamping seats, the clamping seats of different types are used for installing SIM cards of different types, the input end of the switch circuit is connected with an electric connecting wire, the switch circuit is respectively provided with a plurality of output ends corresponding to the clamping seats, and the clamping seats are respectively connected with a plurality of output ends of the switch circuit. According to the SIM card multifunctional conversion board, the SIM card is installed on the corresponding card holder by installing the card holder connector on the card holder of the equipment to be tested, and the switch circuit is adjusted, so that the testing can be completed, the damage of frequent card changing testing on the card holder of the equipment to be tested is avoided, and the problem that the testing efficiency is reduced when the card holder of the equipment to be tested is replaced is also avoided.

Description

Multifunctional conversion board for SIM card

Technical Field

The embodiment of the utility model relates to the technical field of the Internet of things, in particular to a SIM card multifunctional conversion board.

Background

Currently, the internet of things is explosive Fang Zhan, and any networking device is not required to use a SIM card (Subscriber Identity Module, user identity card). The current SIM cards are various, and have a common plug-in card form and a patch SIM IC form. The common plug-in card is provided with a standard large card, also called Mini SIM card, with the size of 25mm multiplied by 15mm multiplied by 0.8mm, and is suitable for most classical machine types and traditional industrial networking equipment; micro SIM card, commonly called small card, with size of 12mm×15mm×0.8mm, is used in a large number of smart phones, and is used in general consumer-grade Internet of things equipment; the Nano SIM card has the size of 12.3mm multiplied by 8.8mm multiplied by 0.7mm, and is suitable for industries with requirements on volume, such as the field of wearable Internet of things; the size of the SIM IC card of the patch is more than one, and there are mainly QFN5×5 and QFN5×6 packages.

Along with the diversity of networks, in order to guarantee the quality of products such as mobile terminal, thing networking equipment, all can require to test different operators, different types of SIM cards, especially mill's test scene and test department pressure test scene need frequently change the card test, and frequent card test can cause the damage of certain degree to the cassette of equipment that awaits measuring, if need according to the cassette of different types of SIM cards change equipment that awaits measuring, then the mainboard of equipment that awaits measuring just needs to be changed, so can reduce test efficiency.

Disclosure of Invention

The embodiment of the utility model aims to provide a multifunctional conversion board for a SIM card, which aims to solve the problems that a card seat of equipment to be tested is damaged to a certain extent by frequent card replacement test and the test efficiency is reduced by replacing the card seat of the equipment to be tested.

In order to solve the technical problems, the embodiment of the utility model provides a multifunctional conversion board of a SIM card, which comprises a card seat connector, an electric connecting wire and a substrate;

the clamping seat connector is arranged on a clamping seat of the equipment to be tested;

two ends of the electric connecting wire are respectively connected with the clamping seat connector and the substrate;

the base plate is provided with a switch circuit and a plurality of clamping seats, the clamping seats comprise at least two different types of clamping seats, the clamping seats of different types are used for installing SIM cards of different types, the input end of the switch circuit is connected with the electric connecting wire, the switch circuit is respectively provided with a plurality of output ends corresponding to the clamping seats, and the clamping seats are respectively connected with the output ends of the switch circuit.

According to the SIM card multifunctional conversion board, the SIM card is installed on the corresponding card holder by installing the card holder connector on the card holder of the equipment to be tested, and the switch circuit is adjusted, so that the testing can be completed, the damage of frequent card changing testing on the card holder of the equipment to be tested is avoided, and the problem that the testing efficiency is reduced when the card holder of the equipment to be tested is replaced is also avoided.

Preferably, in the SIM card multifunctional conversion board, the electrical connection line is an FPC flexible flat cable.

Preferably, in the SIM card multifunctional conversion board, a wiring seat is disposed on the substrate, and an input end of the switch circuit is connected with the electrical connection wire through the wiring seat.

Preferably, in the SIM card multifunctional conversion board, the wire holder, the electrical connection wire and the plurality of card holders are all disposed on a same board surface of the substrate.

Preferably, in the SIM card multifunctional conversion board, the plurality of card holders include a first card holder, a second card holder, a third card holder and a fourth card holder, where the first card holder, the second card holder, the third card holder and the fourth card holder are respectively used for installing a SIM patch card, a Mini SIM card, a Micro SIM card and a Nano SIM card;

the switch circuit comprises a first switch unit and a second switch unit, wherein the input end of the first switch unit is the input end of the switch circuit, the first output end and the second output end of the first switch unit are respectively connected with the first clamping seat and the input end of the second switch unit, and the first output end, the second output end and the third output end of the second switch unit are respectively connected with the second clamping seat, the third clamping seat and the fourth clamping seat.

Preferably, in the SIM card multifunctional conversion board, the first switch unit is a jump cap switch circuit.

Preferably, in the SIM card multifunctional conversion board, a slot is provided on the first card seat, so as to insert the SIM patch card through the slot.

Preferably, in the SIM card multifunctional conversion board, a test point is provided on the substrate, and the test point is connected to a fourth output end of the second switch unit.

Preferably, in the SIM card multifunctional conversion board, the second switch unit is a control switch.

Preferably, in the SIM card multifunctional conversion board, at least one of the card holders is provided with a plurality of card holders.

Drawings

One or more embodiments are illustrated by way of example and not limitation in the figures of the accompanying drawings, in which like references indicate similar elements, and in which the figures of the drawings are not to be taken in a limiting sense, unless otherwise indicated.

Fig. 1 is a schematic structural diagram of a SIM card multi-function switch board according to a first embodiment of the present utility model;

FIG. 2 is a schematic view of the cartridge connector of FIG. 1;

FIG. 3 is a schematic view of a joint between the socket connector and the electrical connection wire in FIG. 1;

fig. 4 is a schematic structural diagram of a SIM card multi-function switch board according to a second embodiment of the present utility model.

The utility model is described by reference numerals:

reference numerals	Name of the name	Reference numerals	Name of the name
				100	Multifunctional conversion board for SIM card	42	Second switch unit
1	Clamping seat connector	5	Clamping seat
				11	Bottom plate	5a	First clamping seat
12	Conductive contact	5b	Second clamping seat
				13	Joint bonding pad	5c	Third clamping seat
2	Electric connecting wire	5d	Fourth clamping seat
				3	Substrate board	6	Wire holder
4	Switching circuit	7	Test point
				41	First switch unit	8	Controller for controlling a power supply

The achievement of the objects, functional features and advantages of the present utility model will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that, if directional indications (such as up, down, left, right, front, and rear … …) are included in the embodiments of the present utility model, the directional indications are merely used to explain the relative positional relationship, movement conditions, etc. between the components in a specific posture (as shown in the drawings), and if the specific posture is changed, the directional indications are correspondingly changed.

In addition, if there is a description of "first", "second", etc. in the embodiments of the present utility model, the description of "first", "second", etc. is for descriptive purposes only and is not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions of the embodiments may be combined with each other, but it is necessary to base that the technical solutions can be realized by those skilled in the art, and when the technical solutions are contradictory or cannot be realized, the combination of the technical solutions should be considered to be absent and not within the scope of protection claimed in the present utility model.

The utility model provides a multifunctional conversion board for a SIM card, which can be used for testing equipment to be tested such as a mobile terminal or equipment of the Internet of things, wherein fig. 1 to 3 show a first embodiment of the multifunctional conversion board for the SIM card provided by the utility model, and fig. 4 shows a second embodiment of the multifunctional conversion board for the SIM card provided by the utility model.

Referring to fig. 1, in a first embodiment, the SIM card multi-function conversion board 100 includes a socket connector 1, electrical connection wires 2, and a substrate 3.

Referring to fig. 1 and 2, a socket connector 1 is mounted on a socket (not shown) of a device under test.

Specifically, the cartridge connector 1 is set in a specific type of cartridge corresponding to the device to be tested, for example, the cartridge of the device to be tested may be a plug-in cartridge, the cartridge connector 1 may be plugged into the cartridge of the device to be tested, and the cartridge of the device to be tested will be described below as an example of a plug-in cartridge.

The specific style of the socket connector 1 may be set according to the actual situation, optionally, referring to fig. 1 and 2, in the first embodiment, the socket connector 1 includes a base plate 11, a conductive contact 12 is disposed on the base plate 11 corresponding to a socket of a device to be tested, and in the case that the socket connector 1 is plugged onto the socket of the device to be tested, the conductive contact 12 on the base plate 11 contacts with the conductive contact on the socket to enable the socket connector 1 to form an electrical connection with the socket of the device to be tested, where the base plate 11 is usually a hard circuit board.

Referring to fig. 1 and 3, two ends of an electrical connection wire 2 are respectively connected to a socket connector 1 and a substrate 3.

Specifically, the substrate 3 is also typically a hard circuit board, and both ends of the electrical connection line 2 are electrically connected to the socket connector 1 and the substrate 3, respectively, and when the socket connector 1 is inserted into a socket of a device under test, the substrate 3 is electrically connected to the socket of the device under test.

The specific style of the electrical connection line 2 is not particularly limited, and optionally, referring to fig. 1, in the first embodiment, the electrical connection line 2 is an FPC (Flexible Printed Circuit, flexible circuit board) flexible flat cable, and the flexible flat cable of the FPC is adopted as the electrical connection line 2, so that the socket connector 1 can be inserted more conveniently and more easily.

The electrical connection wires 2 are electrically connected to the socket connector 1 and the substrate 3, and pads and the like are arranged on the socket connector 1 and the substrate 3 corresponding to the electrical connection wires 2, so that the socket connector 1 and the substrate 3 are electrically connected to the electrical connection wires 2.

Alternatively, referring to fig. 3, in the first embodiment, a connection pad 13 is provided on the base plate 11, the electrical connection wire 2 is connected to the connection pad 13, and the socket connector 1 is electrically connected to the electrical connection wire 2 through the connection pad 13. The bond pad 13 and the conductive contact 12 may be disposed on the same surface of the substrate 11, and the bond pad 13 and the conductive contact 12 may be disposed on different surfaces of the substrate 11.

For example, referring to fig. 2 and 3, in the first embodiment, the terminal pads 13 are disposed on the surface of the base plate 11 far from the conductive contacts 12, and the terminal pads 13 are located at the end of the base plate 11 near the substrate 3, so that it is reasonable to dispose the terminal pads 13 and the conductive contacts 12 on the base plate 11.

Optionally, referring to fig. 1, in the first embodiment, a wiring seat 6 is disposed on the substrate 3, the electrical connection wire 2 is connected to the wiring seat 6, a wiring seat 6 is disposed on a board surface of the substrate 3, the wiring seat 6 is electrically connected to the substrate 3 and the electrical connection wire 2, and by disposing the wiring seat 6 on the substrate 3, the substrate 3 is electrically connected to the electrical connection wire 2. For example, the electrical connection wires 2 may be FPC flexible flat cables, and correspondingly, the wire holders 6 may be FPC flexible flat cable holders.

Optionally, referring to fig. 1, in the first embodiment, the substrate 3 is a square plate, the wiring seat 6 is disposed at a corner of the substrate 3, the electrical connection wire 2 extends along a width direction of the substrate 3, and the socket connector 1 is located at a side of the substrate 3, which is close to the wiring seat 6 in the width direction, so that it is reasonable to arrange the wiring seat 6 on the substrate 3.

Referring to fig. 1, a switch circuit 4 and a plurality of sockets 5 are disposed on a substrate 3, the sockets 5 include at least two different types of sockets 5, the sockets 5 are used for mounting different types of SIM cards, an input end of the switch circuit 4 is connected to an electrical connection wire 2, the switch circuit 4 is respectively provided with a plurality of output ends corresponding to the sockets 5, and the sockets 5 are respectively connected to a plurality of output ends of the switch circuit 4.

Specifically, the types of SIM cards are various, and there are a common plug-in card form and a patch SIM IC form (i.e., a SIM patch card), and four SIM cards including a SIM patch card, a Mini SIM card, a Micro SIM card, and a Nano SIM card will be described below as examples.

The base plate 3 is provided with a plurality of card holders 5 for mounting SIM cards, and if any two card holders 5 are used for mounting two different SIM cards, the kinds of any two card holders 5 are also different. Corresponding to the four SIM cards, the card holder 5 is also divided into a first card holder 5a, a second card holder 5b, a third card holder 5c and a fourth card holder 5d, wherein the first card holder 5a, the second card holder 5b, the third card holder 5c and the fourth card holder 5d are respectively used for installing an SIM patch card, a Mini SIM card, a Micro SIM card and a Nano SIM card.

According to practical situations, two kinds of clamping seats 5 may be arranged on the substrate 3, for example, a plurality of clamping seats 5 only comprise any two kinds of clamping seats 5a, 5b, 5c and 5 d; the substrate 3 may be provided with three types of cartridges 5, for example, only any three types of cartridges 5 selected from the first cartridge 5a, the second cartridge 5b, the third cartridge 5c, and the fourth cartridge 5d may be included in the plurality of cartridges 5; the substrate 3 may further be provided with four kinds of cartridges 5, for example, the plurality of cartridges 5 includes a first cartridge 5a, a second cartridge 5b, a third cartridge 5c, and a fourth cartridge 5d. The following description will take the example that the plurality of cartridges 5 includes the first cartridge 5a, the second cartridge 5b, the third cartridge 5c, and the fourth cartridge 5d.

The plurality of cartridges 5 include a plurality of cartridges 5, and the specific number of each cartridge 5 may be set according to the actual situation, and one or more of each cartridge 5 may be provided. Optionally, referring to fig. 1, in the first embodiment, one first card holder 5a, one second card holder 5b, one third card holder 5c, and one fourth card holder 5d are provided, that is, the specific number of card holders 5 on the substrate 3 is four, and the four card holders 5 are the first card holder 5a, the second card holder 5b, the third card holder 5c, and the fourth card holder 5d, respectively.

Alternatively, in other embodiments, at least one cartridge 5 is provided in plurality, for example, one of four cartridges 5 is provided in plurality, and the other three are provided in each; for another example, two of the four card holders 5 are provided with a plurality of card holders, and the other two are provided with one card holder; as another example, three of the four kinds of cartridges 5 are provided in plural, and another is provided with one.

The following description will take the specific number of the four cartridges 5 on the substrate 3 as an example, where the four cartridges 5 are a first cartridge 5a, a second cartridge 5b, a third cartridge 5c, and a fourth cartridge 5d, respectively.

The substrate 3 is provided with a switch circuit 4, the switch circuit 4 is provided with an input end and a plurality of output ends, the specific number of the output ends of the switch circuit 4 is larger than or equal to the specific number of the clamping seats 5, so that the switch circuit 4 corresponds to four clamping seats 5, at least four output ends are arranged, and the plurality of output ends of the switch circuit 4 comprise a first output end, a second output end, a third output end and a fourth output end. The first output ends of the switch circuits 4 are electrically connected with the first clamping seats 5a, and the number of the first output ends of the switch circuits 4 is equal to that of the first clamping seats 5 a; the second output ends of the switch circuits 4 are electrically connected with the second clamping seats 5b, and the number of the second output ends of the switch circuits 4 is equal to that of the second clamping seats 5 b; the third output ends of the switch circuits 4 are electrically connected with the third clamping seats 5c, and the number of the third output ends of the switch circuits 4 is equal to that of the third clamping seats 5 c; the fourth output ends of the switch circuits 4 are electrically connected with the fourth clamping seats 5d, and the number of the fourth output ends of the switch circuits 4 is equal to that of the fourth clamping seats 5d.

Optionally, referring to fig. 1, in the first embodiment, the input end of the switch circuit 4 is connected to the electrical connection line 2 through the connection socket 6, that is, the input end of the switch circuit 4 is directly connected to the connection socket 6.

When the SIM patch card needs to be tested, the SIM patch card is mounted on the first card seat 5a, and the switch circuit 4 is controlled so that the input end of the switch circuit 4 is communicated with the first output end, and the SIM patch card can be tested; when the Mini SIM card needs to be tested, the Mini SIM card is installed on the second card seat 5b, and the switch circuit 4 is controlled so that the input end of the switch circuit 4 is communicated with the second output end, and the Mini SIM card can be tested; when the Micro SIM card needs to be tested, the Micro SIM card is installed on the third card seat 5c, and the switch circuit 4 is controlled so that the input end of the switch circuit 4 is communicated with the third output end, and the Micro SIM card can be tested; when the Nano SIM card needs to be tested, the Nano SIM card is arranged on the fourth card seat 5d, and the switch circuit 4 is controlled so that the input end of the switch circuit 4 is communicated with the fourth output end, and the Nano SIM card can be tested.

The second card holder 5b, the third card holder 5c and the fourth card holder 5d are plug-in card holders, and the first card holder 5a for mounting the SIM patch card may be a plug-in card holder or a patch card holder. Optionally, in the first embodiment, a slot (not shown in the figure) is provided on the first card holder 5a, so that the SIM patch card is inserted through the slot, that is, the first card holder 5a is a plug-in card holder, and the SIM patch card is in a chip form, which is generally not easy to test, and it is convenient to convert the SIM patch card into a plug-in card form with a different package size through the first card holder 5 a.

According to the SIM card multifunctional conversion board 100, the SIM card is installed on the corresponding card holder 5 by installing the card holder connector 1 on the card holder of the equipment to be tested, and the switch circuit 4 is adjusted, so that the testing can be finished, the damage of frequent card replacement testing on the card holder of the equipment to be tested is avoided, and the problem that the testing efficiency is reduced when the card holder of the equipment to be tested is replaced is also avoided.

The specific arrangement manner of the switch circuit 4 may not be limited, and optionally, referring to fig. 1, in the first embodiment, the switch circuit 4 includes a first switch unit 41 and a second switch unit 42, an input end of the first switch unit 41 is an input end of the switch circuit 4, a first output end and a second output end of the first switch unit 41 are respectively connected to an input end of the first card socket 5a and an input end of the second switch unit 42, and a first output end, a second output end and a third output end of the second switch unit 42 are respectively connected to the second card socket 5b, the third card socket 5c and the fourth card socket 5d.

Specifically, the input end and the first output end of the first switching unit 41 are the input end and the first output end of the switching circuit 4, respectively, and the first output end, the second output end and the third output end of the second switching unit 42 are the second output end, the third output end and the fourth output end of the switching circuit 4, respectively. The first switch unit 41 may be a jump cap switch circuit or the like, and the second switch unit 42 may be a control switch or the like.

When the SIM patch card needs to be tested, the first switch unit 41 is controlled so that the input end of the first switch unit 41 is communicated with the first output end; when the Mini SIM card needs to be tested, the first switch unit 41 and the second switch unit 42 are controlled so that the input end of the first switch unit 41 is communicated with the second output end, and the input end of the second switch unit 42 is communicated with the first output end; when the Micro SIM card needs to be tested, the first switch unit 41 and the second switch unit 42 are controlled so that the input end of the first switch unit 41 is communicated with the second output end, and the input end of the second switch unit 42 is communicated with the second output end; when the Nano SIM card needs to be tested, the first switch unit 41 and the second switch unit 42 are controlled to enable the input end of the first switch unit 41 to be communicated with the second output end, and enable the input end of the second switch unit 42 to be communicated with the third output end.

Optionally, referring to fig. 1, in a first embodiment, the first switch unit 41 includes a first jump cap switch, a second jump cap switch, and a third jump cap switch, a first end of the first jump cap switch is an input end of the first switch unit 41, a second end of the first jump cap switch is connected to a first end of the second jump cap switch and a first end of the third jump cap switch, a second end of the second jump cap switch is a first output end of the first switch unit 41, and a second end of the third jump cap switch is a second output end of the first switch unit 41. The input end of the first switch unit 41 is communicated with the first output end under the condition that the first jump cap switch, the second jump cap switch is closed and the third jump cap switch is opened; in the case where the first jump cap switch, the third jump cap switch are closed and the second jump cap switch is opened, the input terminal of the first switching unit 41 communicates with the second output terminal.

Optionally, referring to fig. 1, in the first embodiment, a test point 7 is disposed on the substrate 3, and the test point 7 is connected to the fourth output terminal of the second switch unit 42.

Specifically, when the Mini SIM card needs to be tested, the input end of the first switch unit 41 is communicated with the second output end, and the input end of the second switch unit 42 is communicated with the first output end, at this time, the test point 7 and the Mini SIM card on the second card seat 5b are electrically connected through the second switch unit 42 and the second card seat 5b in sequence, so that the functional test of the Mini SIM card can be performed by receiving signals through the test point 7; when the Micro SIM card needs to be tested, the input end of the first switch unit 41 is communicated with the second output end, the input end of the second switch unit 42 is communicated with the second output end, at the moment, the test point 7 and the Micro SIM card on the third card seat 5c are electrically connected through the second switch unit 42 and the third card seat 5c in sequence, and thus, the function test of the Micro SIM card can be carried out by receiving signals through the test point 7; when the Nano SIM card needs to be tested, the input end of the first switch unit 41 is communicated with the second output end, the input end of the second switch unit 42 is communicated with the third output end, and at the moment, the test point 7 and the Nano SIM card on the fourth card seat 5d are electrically connected through the second switch unit 42 and the fourth card seat 5d in sequence, so that the function test of the Nano SIM card can be performed by receiving signals through the test point 7.

The substrate 3 is provided with a wiring seat 6, an electric connecting wire 2 and a plurality of clamping seats 5, and the wiring seat 6, the electric connecting wire 2 and the clamping seats 5 can be arranged on the same plate surface of the substrate 3; the wiring seat 6, the electrical connection wires 2 and the plurality of clamping seats 5 may also be arranged on two surfaces of the substrate 3. Optionally, referring to fig. 1, in the first embodiment, the wire holder 6, the electrical connection wires 2 and the plurality of card holders 5 are all disposed on the same surface of the substrate 3, so as to facilitate wire connection between the wire holder 6, the electrical connection wires 2 and the plurality of card holders 5.

Further, referring to fig. 1, in the first embodiment, the wiring seat 6, the first switch unit 41 and the first card seat 5a are arranged along the length direction of the substrate 3, the first switch unit 41 is located between the wiring seat 6 and the first card seat 5a, the wiring seat 6 and the first card seat 5a are respectively located at two corners of the substrate 3, the second switch unit 42 is located at one side of the first switch unit 41 in the width direction of the substrate 3, the second switch unit 42 is located at the middle of the substrate 3, the second card seat 5b and the test point 7 are respectively located at two sides of the second switch unit 42 in the length direction of the substrate 3, the third card seat 5c and the fourth card seat 5d are arranged along the length direction of the substrate 3, and the third card seat 5c and the fourth card seat 5d are both located at one side of the second switch unit 42 away from the first switch unit 41.

As described above, when any SIM card needs to be tested, the any SIM card can be first mounted on the corresponding card holder 5, and then the switch circuit 4 is controlled, so that the output end and the input end corresponding to the switch circuit 4 are communicated, and the any SIM card can be tested. Wherein, the switching circuit 4 can be controlled to switch manually; a controller may be provided, and the switching circuit 4 may be controlled by the controller to perform switching.

Optionally, referring to fig. 4, in the second embodiment, the SIM card multifunctional conversion board 100 further includes a controller 8, where the controller 8 is electrically connected to the switch circuit 4, so as to control the switch circuit 4 through the controller 8.

Specifically, the switch circuit 4 is provided with a control terminal, and the controller 8 is connected to the control terminal of the switch circuit 4, so that the switch circuit 4 can be controlled by the controller 8 to switch, so that the input terminal of the switch circuit 4 selectively communicates with any one of the output terminals of the switch circuit 4.

The controller 8 may be disposed on the substrate 3, that is, the controller 8 and the switch circuit 4 are electrically connected through the substrate 3; the controller 8 may not be disposed on the substrate 3, for example, referring to fig. 4, in the second embodiment, the controller 8 is a separate component, and the controller 8 is electrically connected to the switch circuit 4 through a wire connection.

The SIM card multifunctional conversion board 100 can flexibly realize conversion between different packaged SIM patch cards and plug cards of different package sizes. The card holder connector 1 is inserted into a card holder of a mobile terminal or a card holder of an internet of things device, and then a SIM card is placed into a corresponding card holder 5, so that the test can be completed. Therefore, the equipment to be tested can be protected, particularly, a factory test scene and a test department pressure test scene are protected, and the main board of the equipment to be tested needs to be replaced if the card holder of the equipment to be tested is replaced because frequent card replacement is needed for testing. And if the FPC test wire (i.e., the electrical connection wire 2) is damaged after a certain number of tests are completed, the SIM card multifunctional conversion board 100 only needs to replace the test wire.

The SIM card multifunctional conversion board 100 is used for testing networks of different operators, so that the testing efficiency can be improved. For example, when three different network systems including mobile, communication and telecommunication are required to be tested, the traditional method is that after testing the mobile card by a tester, the tester manually replaces the communication card and then the telecommunication card is replaced. The SIM card multifunctional conversion board 100 solves the problem, and the mobile, communication and telecommunication SIM cards are respectively placed in different card holders 5, and after the mobile test is finished, the communication and the telecommunication are automatically selected through the control switch, so that repeated operations of card pulling and card inserting are not needed, and the test efficiency is improved.

The foregoing description of the preferred embodiments of the present utility model should not be construed as limiting the scope of the utility model, but rather should be understood to cover all modifications, equivalents, and alternatives falling within the spirit and scope of the utility model as defined by the following description and drawings or any application directly or indirectly to other relevant art(s).

Claims (7)

1. The multifunctional conversion board for the SIM card is used for testing equipment to be tested and is characterized by comprising a card seat connector, an electric connecting wire and a substrate;

the clamping seat connector is arranged on a clamping seat of the equipment to be tested;

two ends of the electric connecting wire are respectively connected with the clamping seat connector and the substrate;

the base plate is provided with a switch circuit and a plurality of clamping seats, the clamping seats comprise at least two different types of clamping seats, the clamping seats of different types are used for mounting SIM cards of different types, the input end of the switch circuit is connected with the electric connecting wire, the switch circuit is respectively provided with a plurality of output ends corresponding to the clamping seats, and the clamping seats are respectively connected with the output ends of the switch circuit;

the substrate is provided with a wiring seat, the input end of the switch circuit is connected with the electric connecting wire through the wiring seat, the electric connecting wire is an FPC soft flat cable, and the wiring seat is an FPC soft flat cable seat;

the plurality of card holders comprise a first card holder, a second card holder, a third card holder and a fourth card holder, wherein the first card holder, the second card holder, the third card holder and the fourth card holder are respectively used for installing an SIM patch card, a Mini SIM card, a Micro SIM card and a Nano SIM card;

the switch circuit comprises a first switch unit and a second switch unit, wherein the input end of the first switch unit is the input end of the switch circuit, the first output end and the second output end of the first switch unit are respectively connected with the first clamping seat and the input end of the second switch unit, and the first output end, the second output end and the third output end of the second switch unit are respectively connected with the second clamping seat, the third clamping seat and the fourth clamping seat.

2. The SIM card multifunctional conversion board of claim 1, wherein the wiring holder, the electrical connection wires, and the plurality of card holders are all disposed on the same board surface of the substrate.

3. The SIM card multifunctional conversion board of claim 1, wherein the first switch unit is a jump cap switch circuit.

4. The SIM card multifunctional conversion board of claim 1, wherein a slot is provided on the first card holder to insert the SIM patch card therethrough.

5. The SIM card multifunctional conversion board of claim 1, wherein a test point is provided on the substrate, and the test point is connected to a fourth output terminal of the second switch unit.

6. The SIM card multifunctional conversion board of claim 1, wherein the second switch unit is a control switch.

7. The SIM card multi-function switch of claim 1, wherein at least one of the cartridges is provided with a plurality of cartridges.