IC card seat and tablet terminal

Abstract

The utility model discloses a kind of IC card seat and tablet terminal, the IC card seat is set in the bottom of tablet terminal, and include first circuit board and second circuit board;The first circuit board and the second circuit board are oppositely and parallelly arranged;The side of the first circuit board close to the second circuit board is provided with first connecting seat;The side of the second circuit board close to the first circuit board is provided with second connecting seat;The first circuit board and the second circuit board form the accommodation cavity for accommodating the first connecting seat and the second connecting seat between;The first connecting seat is used for when IC card is inserted into the accommodation cavity with first face as positive, with the chip card reading area of IC card keeps electric connection;The second connecting seat is used for when IC card is inserted into the accommodation cavity with second face as positive, with the chip card reading area of IC card keeps electric connection.The utility model can be compatible with different card insertion direction, improve user experience.

Description

Technical Field

[0001] This utility model relates to the field of connector technology, and in particular to an IC card socket and a tablet terminal. Background Technology

[0002] In related technologies, IC cards (integrated circuit cards) and other similar cards usually require users to insert the card face up or in a specific orientation into the device during insertion and removal. This design limits the way the card can be inserted and causes a lot of inconvenience to users. Utility Model Content

[0003] The technical problem to be solved by this utility model is to provide an IC card socket and a tablet terminal that are compatible with different card insertion orientations and improve the user experience.

[0004] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: An IC card slot is installed at the bottom of a tablet terminal; The IC card socket includes a first circuit board and a second circuit board; The first circuit board and the second circuit board are arranged opposite to and parallel to each other; A first connector is provided on the side of the first circuit board near the second circuit board; A second connector is provided on the side of the second circuit board close to the first circuit board; A receiving cavity is formed between the first circuit board and the second circuit board to accommodate the first connector and the second connector; The first connector is used to maintain an electrical connection with the chip reading area of ​​the IC card when the IC card is inserted into the receiving cavity with the first side as the front. The second connector is used to maintain an electrical connection with the chip reading area of ​​the IC card when the IC card is inserted into the receiving cavity with the second side as the front.

[0005] Furthermore, a protective bracket is provided inside the accommodating cavity, and the protective bracket is provided with a card slot; The protective bracket has a first hollow area on its first surface near the first circuit board that communicates with the card slot, and the first connector is embedded in the first hollow area. The protective bracket has a second hollow area on its second surface near the second circuit board that communicates with the card slot, and the second connector is embedded in the second hollow area.

[0006] Furthermore, the first connecting seat and the second connecting seat are centrally symmetrically distributed within the insertion end face of the accommodating cavity.

[0007] Furthermore, a first waterproof foam is provided between the first circuit board and the protective bracket; The first waterproof foam is provided with a first window corresponding to the first hollow area; A second waterproof foam is provided between the second circuit board and the protective bracket; The second waterproof foam has a second window corresponding to the second hollow area.

[0008] Furthermore, both the first connecting seat and the second connecting seat include a fixing plate, a contact spring, and a positioning spring; The fixing plate is provided with an opening, and the contact spring is disposed in the opening; The contact spring is used to maintain an electrical connection with the chip reading area of ​​the IC card; The fixing plate is provided with a limiting groove, and the positioning spring is disposed in the limiting groove; The positioning spring is used to determine whether the IC card is inserted into the cavity.

[0009] Furthermore, a zebra stripe is provided between the first circuit board and the second circuit board; The zebra stripe is used to trigger the device's self-destruct program when the first circuit board and the second circuit board are physically damaged.

[0010] Furthermore, the protective bracket is provided with a connecting part, and the connecting part is provided with a communicating groove; The zebra strip is embedded in the connecting groove, such that both ends of the zebra strip abut against the first circuit board and the second circuit board, respectively.

[0011] Furthermore, a barrier assembly is also provided between the first circuit board and the second circuit board; The enclosure assembly is arranged around the protective bracket.

[0012] Furthermore, a connector is provided between the first circuit board and the second circuit board; The connector is used to maintain the electrical connection between the first circuit board and the second circuit board.

[0013] To solve the above-mentioned technical problems, another technical solution adopted by this utility model is as follows: A tablet terminal includes the aforementioned IC card socket.

[0014] The beneficial effects of this invention are as follows: By setting up a basic support structure with relatively parallel first and second circuit boards, the cavity formed between them provides physical space for IC card insertion. A first connector is provided on the side of the first circuit board near the second circuit board, and a second connector is provided on the side of the second circuit board near the first circuit board, forming a cavity compatible with connectors on both sides. When the IC card is inserted into the cavity with its first side facing forward, the first connector forms an electrical connection with the IC card's chip reading area; when the IC card is inserted into the cavity with its second side facing forward, the second connector forms an electrical connection with the IC card's chip reading area. This dual-side connector layout enables the cavity to be compatible with both forward and reverse insertion, enhancing the versatility and flexibility of the card holder and improving the user experience. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of an IC card holder according to the present invention; Figure 2 This is a schematic diagram of the structure of a first connecting seat according to the present invention; Figure 3 This is a schematic diagram of the structure of a protective bracket according to the present invention; Figure 4 This is an assembly diagram of a protective bracket according to the present invention; Figure 5 This is a schematic diagram of the structure between the first circuit board and the second circuit board of this utility model; Figure 6 This is a schematic diagram of the structure of the waterproof foam of this utility model; Figure 7 This is a schematic diagram of the structure of a connecting part according to the present invention; Label Explanation: 11. First circuit board; 12. Second circuit board; 111. First connector; 121. Second connector; 13. Receiving cavity; 1011. Contact spring; 1012. Positioning spring; 1013. Fixing plate; 1014. Contact connection terminal; 1015. Positioning connection terminal; 1016. Opening; 1017. Limiting groove; 14. Protective bracket; 141. Card slot; 1411. First hollow area; 1412. Second hollow area; 1413. Protective edge; 15. Enclosure assembly; 16. Connector; 17. First waterproof foam; 171. First window; 18. Second waterproof foam; 172. Second window; 19. Zebra stripe; 142. Connecting part; 1421. Communicating groove. Detailed Implementation

[0016] To make the technical problems, technical solutions, and beneficial effects to be solved by this application clearer, the following detailed description is provided in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative and are not intended to limit the scope of this application.

[0017] In the following description, specific details such as particular system architectures and techniques are set forth for illustrative purposes and not for limitation, in order to provide a thorough understanding of the embodiments of this application. However, those skilled in the art will understand that this application may also be implemented in other embodiments without these specific details. In other instances, detailed descriptions of well-known systems, apparatuses, circuits, and methods have been omitted so as not to obscure the description of this application with unnecessary detail.

[0018] It should be understood that, when used in this application specification and the appended claims, the term "comprising" indicates the presence of the described features, integrals, steps, operations, elements and / or components, but does not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or a collection thereof.

[0019] References to "one embodiment" or "some embodiments" as described in this specification mean that one or more embodiments of this application include a specific feature, structure, or characteristic described in connection with that embodiment. Therefore, the phrases "in one embodiment," "in some embodiments," "in other embodiments," "in still other embodiments," etc., appearing in different parts of this specification do not necessarily refer to the same embodiment, but rather mean "one or more, but not all, embodiments," unless otherwise specifically emphasized. The terms "comprising," "including," "having," and variations thereof mean "including but not limited to," unless otherwise specifically emphasized.

[0020] In related technologies, integrated circuit cards (IC cards) and other similar cards typically require users to insert them into the device's card slot with the card facing upwards or in a specific orientation when connecting to a device. This design restricts the card insertion method, requiring users to carefully determine the card's orientation, thus significantly impacting operational convenience. For example, in low light conditions or when the user is unfamiliar with the device, incorrect card insertion orientation may lead to connection failure or even damage to the card or device, causing considerable inconvenience to the user.

[0021] Furthermore, IC card slots are typically exposed to the external environment during use. The external environment may contain dust, liquids, static electricity, and other adverse factors that can interfere with circuit signal transmission, or even cause short circuits or damage. Therefore, to ensure the stability and reliability of the device, traditional technologies usually require safety protection for the connectors. However, existing safety protection schemes are often quite complex. This complex protection design not only increases the difficulty of the production process but also leads to a significant increase in production costs.

[0022] To solve the above problems, such as Figure 1 As shown, this utility model provides an IC card holder, which is disposed at the bottom of a tablet terminal; The IC card socket includes a first circuit board 11 and a second circuit board 12; The first circuit board 11 and the second circuit board 12 are arranged opposite to and parallel to each other; A first connector 111 is provided on the side of the first circuit board 11 near the second circuit board 12; A second connector 121 is provided on the side of the second circuit board 12 close to the first circuit board 11; A receiving cavity 13 is formed between the first circuit board 11 and the second circuit board 12 for accommodating the first connector 111 and the second connector 121; The first connector 111 is used to maintain an electrical connection with the chip reading area of ​​the IC card when the IC card is inserted into the receiving cavity 13 with the first side as the front. The second connector 121 is used to maintain an electrical connection with the chip reading area of ​​the IC card when the IC card is inserted into the receiving cavity 13 with the second side as the front.

[0023] As described in the above embodiments, a basic support structure is formed by arranging a first circuit board and a second circuit board that are relatively parallel to each other, and the cavity formed between them provides physical space for IC card insertion. A first connector is provided on the side of the first circuit board near the second circuit board, and a second connector is provided on the side of the second circuit board near the first circuit board, forming a cavity compatible with connectors on both sides. When the IC card is inserted into the cavity with its first side facing forward, the first connector forms an electrical connection with the chip reading area of ​​the IC card; when the IC card is inserted into the cavity with its second side facing forward, the second connector forms an electrical connection with the chip reading area of ​​the IC card. This dual-side connector layout enables the cavity to be compatible with insertion in both directions, enhancing the versatility and flexibility of the card holder and improving the user experience.

[0024] like Figure 3 and Figure 4 As shown, in one embodiment of this application, a protective bracket 14 is provided in the accommodating cavity 13, and the protective bracket 14 is provided with a card slot 141; The protective bracket 14 has a first hollow area 1411 on its first surface near the first circuit board 11, which communicates with the card slot 141, and the first connector 111 is embedded in the first hollow area 1411. The second surface of the protective bracket 14 near the second circuit board 12 is provided with a second hollow area 1412 that communicates with the card slot 141, and the second connector 121 is embedded in the second hollow area 1412.

[0025] As can be seen from the above embodiments, the first and second sides of the protective bracket are respectively provided with a first hollow area and a second hollow area communicating with the card slot, so that the first and second connectors can be accurately embedded into the corresponding hollow areas. This ensures the fixed positional relationship between the connector and the circuit board, and also disperses external impact force through the rigid structure of the protective bracket, preventing the connector from being damaged due to direct force. Through the physical isolation of the protective bracket and the positioning function of the hollow areas, the impact resistance of the connector is improved while ensuring the electrical connection reliability of the bidirectional card slot.

[0026] In one embodiment of this application, the first connecting seat 111 and the second connecting seat 121 are centrally symmetrically distributed within the insertion end face of the accommodating cavity 13.

[0027] As can be seen from the above embodiments, the two connectors are centrally symmetrically distributed so that the card can contact the corresponding connector in the same way when inserted in both the forward and reverse directions. This symmetry not only improves the convenience of card insertion, but also facilitates the manufacturing and assembly of the card holder.

[0028] like Figure 6 As shown, in one embodiment of this application, a first waterproof foam 17 is provided between the first circuit board 11 and the protective bracket 14; The first waterproof foam 17 is provided with a first window 171 corresponding to the first hollow area 1411; A second waterproof foam 18 is provided between the second circuit board 12 and the protective bracket 14; The second waterproof foam 18 is provided with a second window 172 corresponding to the second hollow area 1412.

[0029] As can be seen from the above embodiments, the waterproof foam fills the physical gap between the circuit board and the bracket with its elastic material, preventing liquid from seeping in along the direction of the card insertion; the window design of the waterproof foam precisely corresponds to the hollow area, which not only keeps the electrical contact channel between the connector and the IC card unobstructed, but also avoids blocking the signal transmission path.

[0030] like Figure 2 As shown, in one embodiment of this application, both the first connecting seat 111 and the second connecting seat 121 include a fixing plate 1013, a contact spring 1011, and a positioning spring 1012; An opening 1016 is provided on the fixing plate 1013, and a contact spring 1011 is disposed in the opening 1016; Contact spring 1011 is used to maintain electrical connection with the chip reader area of ​​the IC card; A limiting groove 1017 is provided on the fixing plate 1013, and a positioning spring piece 1012 is disposed in the limiting groove 1017; The positioning spring 1012 is used to determine whether the IC card is inserted into the receiving cavity 13.

[0031] As described in the above embodiments, the contact spring is positioned within the opening, ensuring it is exposed within the card slot. The contact spring employs an elastic contact design, generating continuous contact pressure through deformation during IC card insertion, ensuring stable conductivity between the chip reader area and the circuit board. The positioning spring is positioned within a limiting slot, effectively determining its deformation. Based on a specific deformation threshold, when the IC card is fully inserted to the predetermined position, the positioning spring's deformation reaches the trigger condition, generating physical or electrical feedback to achieve accurate detection of the insertion status.

[0032] like Figure 5 As shown, in one embodiment of this application, a zebra stripe 19 is further provided between the first circuit board 11 and the second circuit board 12; Zebra strip 19 is used to trigger the device's self-destruct program when the first circuit board 11 and the second circuit board 12 are physically damaged.

[0033] As can be seen from the above embodiments, the zebra strip is a conductive rubber connector, which is formed by alternating layers of conductive silicone and insulating silicone and then vulcanizing it. Its placement between circuit boards can trigger the device's self-destruct program when the circuit board is physically damaged, thereby preventing the device from being illegally disassembled or tampered with, and improving the security of the connector.

[0034] like Figure 7 As shown, in one embodiment of this application, the protective bracket 14 is provided with a connecting portion 142, and the connecting portion 142 is provided with a communicating groove 1421; The zebra strip 19 is embedded in the connecting groove 1421, so that the two ends of the zebra strip 19 abut against the first circuit board 11 and the second circuit board 12 respectively.

[0035] As can be seen from the above embodiments, the connecting part and the connecting groove on the protective bracket provide a position for fixing and installing the zebra strip, so that the zebra strip can be stably embedded in the connecting groove, ensuring that it plays an effective connection and safety protection role between the circuit boards, and further optimizing the safety design of the card holder.

[0036] like Figure 5 As shown, in one embodiment of this application, a barrier assembly 15 is further provided between the first circuit board 11 and the second circuit board 12; The enclosure assembly 15 is arranged around the protective bracket 14.

[0037] As can be seen from the above embodiments, the enclosure assembly is set around the protective bracket to form a closed protective space, which can further isolate adverse factors such as dust and liquids in the external environment, prevent these factors from entering the card holder, enhance the waterproof and dustproof performance of the card holder, improve the stability and reliability of the card holder, and at the same time provide better protection for the circuit components inside the card holder.

[0038] like Figure 5 As shown, in one embodiment of this application, a connector 16 is further provided between the first circuit board 11 and the second circuit board 12; Connector 16 is used to maintain the electrical connection between the first circuit board 11 and the second circuit board 12.

[0039] As can be seen from the above embodiments, the connector is used to maintain the electrical connection between the first circuit board and the second circuit board, ensuring the stable transmission of circuit signals. Even during the insertion or removal of the card, the connection between the circuit boards will not be affected, further improving the stability and reliability of the card holder.

[0040] To address the aforementioned problems, this utility model provides a tablet terminal, including the aforementioned IC card socket.

[0041] The IC card holder provided by this utility model can be applied to the bottom of a tablet terminal, as illustrated below by specific embodiments: Example 1 like Figure 1 As shown, an IC card socket includes a first circuit board 11 and a second circuit board 12. The first circuit board 11 and the second circuit board 12 are arranged opposite to each other and parallel to each other. A first connector 111 is provided on the side of the first circuit board 11 near the second circuit board 12; a second connector 121 is provided on the side of the second circuit board 12 near the first circuit board 11. A receiving cavity 13 is formed between the first circuit board 11 and the second circuit board 12 to accommodate the first connector 111 and the second connector 121. The first connector 111 and the second connector 121 are centrally symmetrically distributed within the insertion end face of the receiving cavity 13. In this embodiment, the first circuit board 11 and the second circuit board 12 are fastened together by screws.

[0042] Specifically, the first connector 111 is used to maintain an electrical connection with the chip reading area of ​​the IC card when the IC card is inserted into the receiving cavity 13 with its first side facing up. The second connector 121 is used to maintain an electrical connection with the chip reading area of ​​the IC card when the IC card is inserted into the receiving cavity 13 with its second side facing up.

[0043] like Figure 2As shown, both the first connecting base 111 and the second connecting base 121 include a fixing plate 1013, a contact spring 1011, and a positioning spring 1012. The fixing plate 1013 has an opening 1016, and the contact spring 1011 is disposed in the opening 1016. The contact spring 1011 is used to maintain an electrical connection with the chip reading area of ​​the IC card. The fixing plate 1013 has a limiting groove 1017, and the positioning spring 1012 is disposed in the limiting groove 1017. The positioning spring 1012 is used to determine whether the IC card is inserted correctly into the receiving cavity 13. The specific structures of the first connecting base 111 and the second connecting base 121 are the same.

[0044] In one optional embodiment, there are eight contact springs 1011, which are staggered to match the chip reading area of ​​the IC card. Furthermore, the fixing plate 1013 is provided with contact connection terminals 1014 and positioning connection terminals 1015 that are electrically connected to the first circuit board 11 or the second circuit board 12. The fixing plate 1013 has an opening 1016 near the contact connection terminal 1014, and the fixed end of the contact spring 1011 is fixed to the opening 1016, so that the elastic end of the contact spring 1011 is suspended in the opening 1016 and electrically connected to the contact connection terminal 1014. The fixing plate 1013 is provided with a limiting groove 1017. The positioning connection terminal 1015 is located in the limiting groove 1017. The fixed end of the positioning spring 1012 is fixed in the limiting groove 1017, and the elastic end of the positioning spring 1012 abuts against the positioning connection terminal 1015. The height of the elastic end of the positioning spring 1012 when it is not deformed is greater than the depth of the limiting groove 1017. The elastic end of the contact spring 1011 has a V-shaped structure so that the chip card reading area can form a stable contact with the contact spring 1011. The elastic end of the positioning spring 1012 has a stepped structure so that the IC card can form sufficient deformation after it is inserted into the position. Based on the above embodiment, the first connecting seat 111 and the second connecting seat 121 can be disposed on the first circuit board 11 and the second circuit board 12 by surface mount technology, which effectively improves the installation efficiency of the IC card holder and has a small size, making it suitable for thin and light electronic devices such as tablet terminals.

[0045] like Figure 3 and Figure 4As shown, a protective bracket 14 is provided inside the receiving cavity 13, and the protective bracket 14 is provided with a card slot 141. A first hollow area 1411 communicating with the receiving cavity 13 is provided on the first surface of the card slot 141 near the first circuit board 11, and a first connecting seat 111 is embedded in the first hollow area 1411. A second hollow area 1412 communicating with the receiving cavity 13 is provided on the second surface of the card slot 141 near the second circuit board 12, and a second connecting seat 121 is embedded in the second hollow area 1412. In this way, when the IC card is inserted into the card slot 141 with its first side facing forward, it maintains an electrical connection with the chip reading area of ​​the IC card. The second connecting seat 121 is used to maintain an electrical connection with the chip reading area of ​​the IC card when the IC card is inserted into the card slot 141 with its second side facing forward. In one alternative embodiment, a protective edge 1413 is provided at the edge of the insertion port of the card slot 141. The protective edge 1413 is used to cover the gap between the protective bracket 14 and the first circuit board 11 and the second circuit board 12, so that the accommodating cavity 13 forms a sealed state.

[0046] like Figure 5 As shown, a barrier assembly 15 is also provided between the first circuit board 11 and the second circuit board 12; the barrier assembly 15 is arranged around the protective bracket 14. A connector 16 is also provided between the first circuit board 11 and the second circuit board 12; the connector 16 is used to maintain the electrical connection between the first circuit board 11 and the second circuit board 12.

[0047] like Figure 6 As shown, a first waterproof foam 17 is disposed between the first circuit board 11 and the protective bracket 14; the first waterproof foam 17 is provided with a first window 171 corresponding to the first hollow area 1411. A second waterproof foam 18 is disposed between the second circuit board 12 and the protective bracket 14; the second waterproof foam 18 is provided with a second window 172 corresponding to the second hollow area 1412.

[0048] like Figure 5 As shown, a zebra strip 19 is also provided between the first circuit board 11 and the second circuit board 12; the zebra strip 19 is used to trigger the device's self-destruct program when the first circuit board 11 and the second circuit board 12 are physically damaged. Figure 5 and Figure 7 As shown, in one optional embodiment, the protective bracket 14 is provided with a connecting part 142, and the connecting part 142 is provided with a connecting groove 1421; the zebra strip 19 is embedded in the connecting groove 1421, so that the two ends of the zebra strip 19 abut against the first circuit board 11 and the second circuit board 12 respectively.

[0049] In a specific application scenario, when a user pushes an IC card with the chip reader side facing up into the card slot 141 along the guide, the IC card's chip reader area first contacts the contact spring 1011 exposed from the first cutout area 1411, which belongs to the first connector 111, and simultaneously presses the positioning spring 1012 into the limiting groove 1017. The V-shaped contact spring 1011 undergoes elastic deformation under the pressure of the IC card, and its apex maintains stable and reliable contact with the chip's contacts. The current signal forms a path through the contact spring 1011, the contact connection terminal 1014, and the first circuit board 11 on the first connector 111. When the stepped positioning spring 1012 is pressed down by the IC card until it is fully within the limiting groove 1017, indicating that the IC card is fully inserted, the deformation change (such as resistance or continuity change) of the positioning spring 1012 is sensed by the detection circuit through the positioning connection terminal 1015, thereby determining that the card is inserted correctly and notifying the contact connection terminal to start reading data from the chip card reading area. At this time, there is no contact between the front side of the IC card and the spring of the second connector 121. The entire card reading function is completed by the first connector 111 located on the first circuit board 11 above.

[0050] In another specific application scenario, when a user pushes an IC card with the chip reader side down into the card slot 141 along the guide, the chip reader area of ​​the IC card will first contact the contact spring 1011 exposed from the second cutout area 1412, which belongs to the second connector 121, and simultaneously press the positioning spring 1012 into the limiting groove 1017. The V-shaped contact spring 1011 undergoes elastic deformation under the pressure of the IC card, and its apex maintains stable and reliable contact with the chip's contacts. The current signal forms a path through the contact spring 1011 on the second connector 121, the contact connection terminal 1014, and the second circuit board 12. When the stepped positioning spring 1012 is pressed down by the IC card until it is fully within the limiting groove 1017, indicating that the IC card is fully inserted, the deformation change (such as resistance or continuity change) of the positioning spring 1012 is sensed by the detection circuit through the positioning connection terminal 1015, thereby determining that the card is inserted correctly and notifying the contact connection terminal to start reading data from the chip card reading area. At this time, there is no contact between the face-down side of the IC card and the spring of the first connector 111. The entire card reading function is completed by the second connector 121 on the second circuit board 12 located below.

[0051] This application forms a receiving cavity by setting up a first and second circuit board that are parallel to each other, and arranging a first connector and a second connector on the inner side of the two boards respectively. This enables the IC card to be inserted from both sides and establish an electrical connection with the corresponding connector, which significantly improves the convenience of card insertion and user experience. At the same time, through the multiple designs of protective bracket, hollow area, waterproof foam sealing layer, enclosure component and zebra strip self-destruct mechanism, the impact resistance, dust and water resistance and security of the card holder are effectively enhanced. While ensuring stable electrical connection, it reduces the risk of external environmental interference and physical damage, and takes into account both ease of use and reliability.

[0052] Example 2 A tablet terminal includes an IC card slot as described in Embodiment 1.

[0053] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. An IC card socket, characterized in that, Located at the bottom of the tablet terminal; The IC card socket includes a first circuit board and a second circuit board; The first circuit board and the second circuit board are arranged opposite to and parallel to each other; A first connector is provided on the side of the first circuit board near the second circuit board; A second connector is provided on the side of the second circuit board close to the first circuit board; A receiving cavity is formed between the first circuit board and the second circuit board to accommodate the first connector and the second connector; The first connector is used to maintain an electrical connection with the chip reading area of ​​the IC card when the IC card is inserted into the receiving cavity with the first side as the front. The second connector is used to maintain an electrical connection with the chip reading area of ​​the IC card when the IC card is inserted into the receiving cavity with the second side as the front.

2. An IC card socket according to claim 1, characterized in that, A protective bracket is provided inside the accommodating cavity, and the protective bracket is provided with a card slot; The protective bracket has a first hollow area on its first surface near the first circuit board that communicates with the card slot, and the first connector is embedded in the first hollow area. The protective bracket has a second hollow area on its second surface near the second circuit board that communicates with the card slot, and the second connector is embedded in the second hollow area.

3. An IC card socket according to claim 1, characterized in that, The first connector and the second connector are centrally symmetrically distributed within the insertion end face of the accommodating cavity.

4. An IC card socket according to claim 2, characterized in that, A first waterproof foam is provided between the first circuit board and the protective bracket; The first waterproof foam is provided with a first window corresponding to the first hollow area; A second waterproof foam is provided between the second circuit board and the protective bracket; The second waterproof foam has a second window corresponding to the second hollow area.

5. An IC card socket according to claim 1, characterized in that, Both the first connecting seat and the second connecting seat include a fixing plate, a contact spring, and a positioning spring; The fixing plate is provided with an opening, and the contact spring is disposed in the opening; The contact spring is used to maintain an electrical connection with the chip reading area of ​​the IC card; The fixing plate is provided with a limiting groove, and the positioning spring is disposed in the limiting groove; The positioning spring is used to determine whether the IC card is inserted into the cavity.

6. An IC card socket according to claim 2, characterized in that, A zebra stripe is also provided between the first circuit board and the second circuit board; The zebra stripe is used to trigger the device's self-destruct program when the first circuit board and the second circuit board are physically damaged.

7. An IC card socket according to claim 6, characterized in that, The protective bracket is provided with a connecting part, and the connecting part is provided with a connecting groove; The zebra strip is embedded in the connecting groove, such that both ends of the zebra strip abut against the first circuit board and the second circuit board, respectively.

8. An IC card socket according to claim 2, characterized in that, A barrier assembly is also provided between the first circuit board and the second circuit board; The enclosure assembly is arranged around the protective bracket.

9. An IC card socket according to claim 1, characterized in that, A connector is also provided between the first circuit board and the second circuit board; The connector is used to maintain the electrical connection between the first circuit board and the second circuit board.

10. A tablet terminal, characterized in that, Includes an IC card holder according to any one of claims 1-9.

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