SIM card fixing mechanism and terminal device

Abstract

Embodiments of the present application relate to the technical field of electronic device accessories, and provide a SIM card fixing mechanism and a terminal device. The SIM card fixing mechanism comprises a tray body and a limiting member, wherein the tray body is used for installing and fixing a SIM card, and the tray body is provided with a slot for accommodating the SIM card; the limiting member is flexible; the limiting member comprises an abutting part protruding towards the interior of the slot; and the abutting part is used for providing abutting force for the SIM card, so that the SIM card is stably accommodated in the slot. During installation, one end of the SIM card abuts against the abutting part, and then the other end of the SIM card is pressed into walls of the slot. Compared with a conventional SIM card tray, the thickness corresponding to an elastic clearance groove required by an elastic structure is reduced, and in the length direction of the SIM card fixing mechanism, i.e., in the direction where the SIM card fixing mechanism is inserted in the terminal device, the overall length of the SIM card fixing mechanism of the present application is shorter, and the SIM card fixing mechanism is more suitable for the situation that the space used for accommodating the SIM card in the terminal device is limited, so that the technical difficulty of waterproof sealing of the terminal device can be reduced to a certain extent.

Description

SIM card fixing mechanism and terminal equipment

[0001] This application claims priority to the Chinese patent application filed with the State Intellectual Property Office on September 19, 2023, with application number 202311215612.8 and invention name “SIM card fixing mechanism and terminal equipment”, the entire contents of which are incorporated by reference into this application. Technical Field

[0002] The present application relates to the technical field of electronic device accessories, and in particular to a SIM card fixing mechanism and a terminal device having the SIM card fixing mechanism. Background Art

[0003] SIM card stands for Subscribe Identity Module, also known as smart card or user identity card. It is installed in a terminal device via a SIM card holder to connect to the communication network.

[0004] A traditional SIM card holder structure includes a holder body and an elastic structure within the holder body. This elastic structure applies force to the SIM card, securing it within the holder body's card slot. However, this elastic structure requires a reserved elastic relief groove and, to meet waterproofing requirements, a waterproof sealing rib on the holder body. Furthermore, a retaining rib is provided between the elastic structure and the waterproof sealing rib. This results in the width of each structure and the width of the groove accumulating along the length of the holder body, ultimately resulting in a longer SIM card holder. This makes it difficult to accommodate the shorter SIM card storage space in terminal devices, placing new demands on the terminal device's waterproof sealing. Technical issues

[0005] The embodiments of the present application provide a SIM card fixing mechanism and a terminal device, which can solve the technical problem that the waterproof sealing technology of the terminal device is more difficult due to the long overall length of the SIM card seat. Technical Solutions

[0006] To achieve the above objectives, the embodiments of the present application adopt the following technical solutions:

[0007] In the first aspect, the present application provides a SIM card fixing mechanism, including a base body and a limit member, the base body is used to install and fix the SIM card, and the base body has a card slot for accommodating the SIM card; the limit member is flexible, for example, the limit member can be made of silicone or rubber, and thus, the limit member is arranged on the base body and can be fixed on the base body by injection molding; the limit member includes an abutment portion protruding toward the card slot; the abutment portion is used to provide a supporting force to the SIM card so that the SIM card is stably accommodated in the card slot. Specifically, during the installation process, one end of the SIM card first abuts against the abutment portion, and then the other end thereof is pressed into the slot wall of the card slot.

[0008] The above technical solutions in the embodiments of the present application have at least the following technical effects or advantages:

[0009] The SIM card fixing mechanism provided in the embodiment of the present application is provided with a limit member on the seat body, and the abutment portion of the limit member extends into the card slot to provide an abutment force for the SIM card to be accommodated in the card slot. Compared with the traditional SIM card seat, the thickness corresponding to the elastic avoidance groove required by the elastic structure is reduced. In its own length direction, that is, the direction of insertion into the terminal device, the overall length of the SIM card fixing mechanism of the present application is shorter, which is more suitable for situations where the space for accommodating the SIM card in the terminal device is limited, and can reduce the technical difficulty of waterproof sealing of the terminal device to a certain extent.

[0010] In some embodiments of the first aspect, the seat body includes a main body, a pushing top portion, and a middle portion connected to the main body and the pushing top portion, the main body is provided with the card slot, the side wall of the main body is recessed toward the middle portion to form an installation groove connected to the card slot, and the limiting member is arranged in the installation groove.

[0011] The main body is primarily used to accommodate the SIM card, and therefore, the card slot is located on the main body. The push-top portion is the support for the user's hand, and it also matches and blocks the slot of the terminal device. The middle portion is the transition portion, connecting the main body and the push-top portion. The middle portion also abuts against the slot wall of the terminal device to achieve waterproof and dustproof requirements. The side wall of the main body is provided with a mounting groove, in which the limiter is fixed. Here, the limiter is set in the mounting groove through in-mold injection molding.

[0012] In some embodiments of the first aspect, the limiting member includes a limiting body disposed in the installation slot, the limiting body has a first surface facing the slot, and the abutting portion is disposed on the first surface.

[0013] The limiting body is the main part of the limiting member accommodated in the mounting groove. The first surface of the limiting body corresponds to the side wall of the main body near the middle part. The abutting part is arranged on the first surface. Then, a part of the side wall of the SIM card abuts against the abutting part, and the other part of the side wall abuts against the side wall of the main body.

[0014] In some embodiments of the first aspect, the first surface is flush with a corresponding side wall of the main body.

[0015] It can be understood that only the abutting portion protrudes into the slot, and the first surface and the corresponding side walls of the main body together form the side walls of the slot.

[0016] In some embodiments of the first aspect, in the thickness direction of the seat body, the thickness of the abutting portion to the first surface gradually decreases.

[0017] It can be understood that the thickness of the abutment portion in the thickness direction of the base body is uneven, presenting a structure in which one end is large and the other end is small. In this way, the force acting on the SIM card at the abutment portion is mainly provided by the thicker abutment portion, thereby improving the installation stability of the SIM card in the card slot.

[0018] In some embodiments of the first aspect, the limiting body has a second surface set at an angle to the first surface, the abutment portion has a top end and a bottom end, the surface of the top end is flush with the second surface, and both are lower than the end face of the main body.

[0019] The second surface can be oriented in the same direction as the notch of the card slot, with the top end of the abutting portion being closer to the second surface and the bottom end of the abutting portion being further away from the second surface. The top end and the second surface are flush and lower than the end surface of the main body, so that the abutting portion and the retaining body interfere with each other in the thickness direction of the main body. This allows the SIM card retaining mechanism to be more smoothly inserted into the slot of the terminal device.

[0020] In some embodiments of the first aspect, the SIM card fixing mechanism also includes a partition plate, which divides the card slot into a first sub-card slot and a second sub-card slot, and the first sub-card slot and the second sub-card slot are both provided with the limiting member, and the abutting portion of each limiting member extends into the corresponding sub-card slot.

[0021] After adding the partition plate, the SIM card fixing mechanism can accommodate two SIM cards at the same time, and they are respectively arranged in the first sub-card slot and the second sub-card slot. In addition, corresponding limiting members are provided in both sub-card slots, and their abutting parts extend into the corresponding sub-card slots to meet the function of limiting the SIM cards.

[0022] In some embodiments of the first aspect, the mounting slot includes a first sub-mounting slot connected to the first sub-card slot and a second sub-mounting slot connected to the second sub-card slot. In the thickness direction of the base body, the first sub-mounting slot and the second sub-mounting slot are connected, and the first sub-mounting slot and the second sub-mounting slot are staggered.

[0023] To accommodate the installation of two position limiting members, the mounting slot is also divided by a partition plate to form two sub-mounting slots for accommodating corresponding position limiting members. Because the first and second sub-mounting slots are interconnected, the two position limiting members can be formed within the corresponding sub-mounting slots through a single injection molding process. Furthermore, the interconnectedness of the two sub-mounting slots creates a certain connection between the two position limiting members. Furthermore, the two sub-mounting slots are staggered, so that the bottom wall of one sub-mounting slot necessarily extends into the slot space of the other sub-mounting slot. This provides a certain supporting force for the position limiting member along the thickness direction of the base body, further enhancing the installation stability of the position limiting member within the mounting slot.

[0024] In some embodiments of the first aspect, at least a portion of the partition plate extends into the first sub-mounting groove and the second sub-mounting groove, and the partition plate is spaced apart from the groove side wall of the first sub-mounting groove or the groove side wall of the second sub-mounting groove.

[0025] It can be understood that in the thickness direction of the seat body, the partition plate also provides a certain supporting force to the limiting member. At the same time, the partition plate does not separate the two limiting members. Therefore, the structural strength of the two limiting members combined together is higher.

[0026] In some embodiments of the first aspect, the surface of the top end portion of the abutting portion is recessed to form a groove; and / or the second surface of the limiting body is recessed to form a groove.

[0027] The grooves formed on the surface of the top end portion and / or the second surface may provide a larger deformation space for the top portion.

[0028] In some embodiments of the first aspect, the limiting member further includes a sealing portion, an annular groove structure is provided on the middle portion, and the sealing portion is provided at the annular groove structure.

[0029] The sealing portion is formed in the annular groove structure of the middle portion and is used to improve the sealing performance of the connection between the SIM card fixing mechanism and the terminal device.

[0030] In some embodiments of the first aspect, the sealing portion and the limiting body are integrally formed.

[0031] It can be understood that the sealing portion and the limiting body are integrally formed on the base body by in-mold injection molding, which can further save space and thickness.

[0032] In a second aspect, an embodiment of the present application provides a terminal device, comprising a device body and the above-mentioned SIM card fixing mechanism, wherein a slot is provided on the device body, and the SIM card fixing mechanism is inserted into the slot.

[0033] The above technical solutions in the embodiments of the present application have at least the following technical effects or advantages:

[0034] The terminal device provided in the embodiment of the present application, based on the above-mentioned SIM card fixing mechanism, can have a smaller depth of the slot on the device body, which is more conducive to the waterproof and dustproof design of the terminal device. BRIEF DESCRIPTION OF THE DRAWINGS

[0035] FIG1 is a front view of an existing SIM card holder;

[0036] FIG2 is a schematic diagram of a three-dimensional structure of a terminal device in an unfolded state provided by some embodiments of the present application;

[0037] FIG3 is a schematic diagram of the three-dimensional structure of a SIM card fixing structure provided in some embodiments of the present application;

[0038] FIG4 is another schematic diagram of the three-dimensional structure of the SIM card fixing structure provided in some embodiments of the present application;

[0039] Figure 5 is an enlarged view of point A in Figure 4;

[0040] FIG6 is a partial enlarged view of a limiting member of a SIM card fixing mechanism provided in some embodiments of the present application;

[0041] FIG7 is a cross-sectional view of a SIM card fixing mechanism provided in some embodiments of the present application;

[0042] FIG8 is a cross-sectional view of a SIM card fixing mechanism and a SIM card in an inserted state provided by some embodiments of the present application;

[0043] FIG9 is a cross-sectional view of a SIM card fixing mechanism and a SIM card in an assembled state provided by some embodiments of the present application;

[0044] FIG10 is a schematic diagram of the three-dimensional structure of a SIM card fixing mechanism (without a partition plate and an infinite position member) provided in some embodiments of the present application;

[0045] FIG11 is a schematic diagram of the three-dimensional structure of a SIM card fixing mechanism (without an infinite position member) provided in some embodiments of the present application;

[0046] FIG12 is a front view of a SIM card fixing mechanism provided in some embodiments of the present application.

[0047] : Among them, the figure marks are: 1. SIM card holder; 2. elastic structure; 3. elastic avoidance groove; 4. sealing rib; 5. retaining rib; 1000, terminal device; 1001, device body; 1002, slot; 1003, SIM card; 100, SIM card fixing mechanism; 10, seat body; 10a, card slot; 11. main body; 12, push top; 13, middle part; 10b, mounting groove; 10a1, first sub-card slot; 10a2, second sub-card slot; 10b1, first sub-mounting groove; 10b2, second sub-mounting groove; 13a, ring groove structure; 20, limit member; 21, abutting part; 22, limit body; 22a, first surface; 22b, second surface; 21a, top end; 21b, bottom end; 20a, groove; 23, sealing part; 30, partition plate. Modes for Carrying Out the Invention

[0048] The following describes in detail embodiments of the present application, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present application, and should not be construed as limiting the present application.

[0049] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those skilled in the art to which this application belongs; the terms used herein are for the purpose of describing specific embodiments only and are not intended to limit this application. The terms "including" and "having" and any variations thereof in the specification and claims of this application and the accompanying drawings are intended to cover non-exclusive inclusions.

[0050] In the description of this application, it should be understood that the terms "length", "width", "thickness", "top", "bottom", "inside", "outside", "up", "down", etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings. They are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, they should not be understood as limitations on this application.

[0051] The terms "first," "second," "third," "fourth," "fifth," and "sixth," etc., are used solely for descriptive purposes and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features being referred to. For example, the terms "first deformation space" and "second deformation space" are used solely to distinguish between different deformation spaces and do not define their order. The first deformation space could also be named the second deformation space, and the second deformation space could also be named the first deformation space, without departing from the scope of the various described embodiments. Furthermore, the terms "first," "second," and so on, do not necessarily define the features being referred to as different.

[0052] In this application, unless otherwise specified or limited, the terms "connected" and "connection" should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection; direct connection, indirect connection through an intermediate medium, internal communication between two components, or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0053] In this application, "and / or" is simply a way to describe the relationship between related objects, indicating that three possible relationships exist. For example, "A and / or B" can mean: A exists alone, A and B exist simultaneously, or B exists alone. Additionally, the character " / " in this document generally indicates that the related objects are in an "or" relationship.

[0054] It should be noted that, in this application, words such as "in some embodiments," "exemplarily," and "for example" are used to indicate examples, illustrations, or descriptions. Any embodiment or design described in this application as "in some embodiments," "exemplarily," or "for example" should not be construed as being preferred or advantageous over other embodiments or designs. Rather, the use of words such as "in some embodiments," "exemplarily," and "for example" is intended to present the relevant concepts in a concrete manner.

[0055] In order to make the purpose, technical solutions and advantages of this application more clear, this application is further described in detail below with reference to the accompanying drawings and embodiments.

[0056] As shown in Figure 1, a conventional SIM card holder 1 includes an elastic structure 2 within the card slot to retain the SIM card. This elastic structure 2 forms an elastic relief groove 3 with the inner wall of the card slot to allow for deformation of the elastic structure 2. Furthermore, to enhance the waterproof and dustproof performance of the SIM card holder, a sealing rib 4 is provided on the SIM card holder. Furthermore, a retaining rib 5 is provided between the sealing rib 4 and the elastic relief groove 3 to block the sealing rib 4. This results in a longer SIM card holder, requiring a larger storage space within the terminal device, which increases the difficulty of ensuring waterproof and dustproof performance.

[0057] Typically, the thickness a of the elastic structure 2 is greater than or equal to 0.4 mm, the width b of the elastic avoidance groove 3 is greater than or equal to 0.5 mm, the waterproof sealing rib uses an O-type silicone ring, the width d of the sealing rib 4 is greater than or equal to 1 mm, and the width c of the retaining rib 5 is greater than or equal to 0.4 mm. Therefore, when the SIM card size is the same, the SIM card holder needs to be increased by at least 2.3 mm.

[0058] In light of this, an embodiment of the present application provides a SIM card securing mechanism comprising a retaining member on the holder body. The retaining member's abutting portion extends into the card slot, abutting against the SIM card in the slot, thereby stably retaining the SIM card within the slot. Compared to conventional SIM card holders, the thickness of the elastic relief groove required for the elastic structure is reduced. The overall length of the SIM card securing mechanism of the present application is shorter along its own length, i.e., the direction of insertion into the terminal device. This makes the mechanism more suitable for situations where the space for accommodating a SIM card within a terminal device is limited, and can, to a certain extent, reduce the technical difficulty of waterproof sealing the terminal device.

[0059] The terminal device provided in the embodiments of the present application is a foldable electronic device, that is, an electronic device that can be folded and unfolded. For example, the terminal device can be a mobile phone, a tablet computer, a laptop computer (Laptop), a notebook computer (Notebook PC), a personal digital assistant (PDA), a wearable device (such as a watch), an in-vehicle device, an augmented reality (AR) / virtual reality (VR) device, a point of sales (POS) terminal, a driving recorder, an intercom, a camera, a display, etc., but is not limited thereto.

[0060] Please refer to Figure 2, which shows a schematic diagram of the three-dimensional structure of a terminal device in an unfolded state provided in some embodiments of the present application, and takes the terminal device 1000 as a mobile phone as an example for introduction and explanation.

[0061] An embodiment of the present application provides a terminal device 1000 , including a device body 1001 and a SIM card fixing mechanism 100 . A slot 1002 is provided on the device body 1001 , and the SIM card fixing mechanism 100 is inserted into the slot 1002 .

[0062] Among them, the device body 1001 refers to the part of the terminal device that can realize information input and output. The device body 1001 includes a shell, a control panel provided in the shell, a display screen electrically connected to the control panel, etc. The slot 1002 is used for inserting the SIM card fixing mechanism 100. After the SIM card fixing mechanism 100 is inserted, the SIM card is electrically connected to the control panel in the device body 1001, thereby enabling the terminal device to access the corresponding communication network.

[0063] The SIM card fixing mechanism 100 is used to install and fix the SIM card.

[0064] The overall length of the SIM card fixing mechanism 100 of the present application is shorter, which allows the length of the corresponding slot 1002 to be designed to be shorter, saving part of the internal space of the device body 1001, thereby reducing the difficulty of designing the terminal device's waterproof and dustproof properties at the slot 1002.

[0065] The above technical solutions in the embodiments of the present application have at least the following technical effects or advantages:

[0066] The terminal device provided in the embodiment of the present application, based on the above-mentioned SIM card fixing mechanism 100, can have a smaller depth of the slot 1002 on the device body 1001, which is more conducive to the waterproof and dustproof design of the terminal device.

[0067] Referring to Figures 3 and 4 , a SIM card securing mechanism 100 of the present application includes a base 10 and a retaining member 20. The base 10 is used to mount and secure a SIM card 1003 and has a slot 10a for accommodating the SIM card 1003. The slot 10a has a profile that matches the outer shape of the SIM card 1003. Typically, if the SIM card 1003 is square, the slot 10a is also square, having four sidewalls that align with the SIM card 1003.

[0068] The limiting member 20 is flexible. For example, the limiting member 20 can be made of silicone or rubber. Therefore, the limiting member 20 is arranged on the base body 10. For example, it can be fixed on the base body 10 by injection molding. The limiting member 20 includes an abutting portion 21 protruding toward the card slot 10a. The abutting portion 21 is used to provide a supporting force to the SIM card 1003, so that the SIM card 1003 is stably accommodated in the card slot 10a.

[0069] Specifically, during the installation process, one end of the SIM card 1003 first abuts against the abutting portion 21 , and then the other end thereof is pressed into the slot wall of the card slot 10 a .

[0070] The above technical solutions in the embodiments of the present application have at least the following technical effects or advantages:

[0071] The SIM card fixing mechanism 100 provided in the embodiment of the present application is provided with a limit member 20 on the seat body 10, and the abutment portion 21 of the limit member 20 extends into the card slot 10a, providing an abutment force for the SIM card 1003 to be accommodated in the card slot 10a. Compared with the traditional SIM card 1003 card seat, the thickness corresponding to the elastic avoidance groove required by the elastic structure is reduced. In its own length direction, that is, the direction of insertion into the terminal device, the overall length of the SIM card fixing mechanism 100 of the present application is shorter, which is more suitable for situations where the space for accommodating the SIM card 1003 in the terminal device is limited, and can reduce the technical difficulty of waterproof sealing of the terminal device to a certain extent.

[0072] Please refer to Figures 3 and 10. In some embodiments, the base body 10 includes a main body 11, a pushing top portion 12, and an intermediate portion 13 connected to the main body 11 and the pushing top portion 12. A card slot 10a is provided on the main body 11, and the side wall of the main body 11 is recessed toward the intermediate portion 13 to form an installation slot 10b connected to the card slot 10a. The limiting member 20 is disposed in the installation slot 10b.

[0073] The main body 11 is mainly used to accommodate the SIM card 1003, and the card slot 10a is set on the main body 11; the push-top part 12 is the fulcrum for the user's hand. At the same time, the push-top part 12 matches the slot 1002 of the terminal device and can block the slot 1002; the middle part 13 is the transition part, which is used to connect the main body 11 and the push-top part 12. At the same time, the middle part 13 abuts against the slot wall of the slot 1002 of the terminal device to achieve waterproof and dustproof requirements.

[0074] An installation groove 10b is opened on the side wall of the main body 11. Specifically, the installation groove 10b is set on the side wall of the main body 11 near the middle part 13. The limit member 20 is fixed in the installation groove 10b to improve the connection stability of the limit member 20 on the base body 10. Here, the limit member 20 can be set in the installation groove 10b by in-mold injection molding.

[0075] 3 and 4 , in some embodiments, the limiting member 20 includes a limiting body 22 disposed in the mounting slot 10 b . The limiting body 22 has a first surface 22 a facing the slot 10 a , and the abutting portion 21 is disposed on the first surface 22 a .

[0076] The limiting body 22 is the main portion of the limiting member 20 that is received within the mounting groove 10b. The first surface 22a of the limiting body 22 corresponds to the sidewall of the main body 11 near the middle portion 13. It is understood that the first surface 22a of the limiting body 22 serves to compensate for the absence of this sidewall due to the provision of the mounting groove 10b. That is, the first surface 22a of the limiting body 22 and the sidewall of the main body 11 together enclose the retaining groove 10a.

[0077] The abutment portion 21 is disposed on the first surface 22a such that the abutment portion 21 faces the sidewall of the SIM card 1003. Therefore, when the SIM card 1003 is secured in the card slot 10a, a portion of the sidewall of the SIM card 1003 abuts the abutment portion 21, while another portion of the sidewall abuts the sidewall of the main body 11.

[0078] Here, the first surface 22a can have three positional relationships with the side wall of the current main body 11, namely, the first surface 22a protrudes from the side wall of the main body 11; the first surface 22a is flush with the side wall of the main body 11; and the first surface 22a is recessed in the side wall of the main body 11.

[0079] Compared with the case where the first surface 22 a is flush with the side wall of the main body 11 , in the other two cases, the size of the abutting portion 21 needs to be adjusted to meet the abutting requirements of the SIM card 1003 in different scenarios.

[0080] Referring to FIG. 4 , in some embodiments, the first surface 22 a is flush with the corresponding sidewall of the main body 11 .

[0081] It can be understood that only the abutting portion 21 protrudes into the slot 10 a , and the first surface 22 a and the corresponding side wall of the main body 11 together form the side wall of the slot 10 a .

[0082] Referring to FIG. 6 to FIG. 8 , in some embodiments, in the thickness direction of the base body 10 , the thickness of the abutting portion 21 to the first surface 22 a gradually decreases.

[0083] For ease of understanding, the thickness direction of the base body 10 is the Z direction in the figure.

[0084] It can be understood that the thickness of the abutting portion 21 in the thickness direction of the base 10 is uneven. Here, the thickness of the abutting portion 21 refers to the distance from one end of the abutting portion 21 away from the first surface 22 a to the first surface 22 a.

[0085] That is, in the Z direction, the abutting portion 21 has a structure in which one end is large and the other end is small. In this way, the force acting on the SIM card 1003 at the abutting portion 21 is mainly provided by the thicker abutting portion 21, thereby improving the installation stability of the SIM card 1003 in the card slot 10a.

[0086] Alternatively, it can also be understood that the side of the abutting portion 21 facing away from the first surface 22a has an inclined surface. When abutting against the SIM card 1003, the inclined surface of the abutting portion 21 abuts against the side wall of the SIM card 1003, and the plane where the inclined surface is located forms an acute angle with the plane where the first surface 22a is located.

[0087] Here, the thickness variation trend of the contact portion 21 from the first surface 22a can be adjusted according to the actual contact requirements of the SIM card 1003. For example, the thickness of the contact portion 21 can change linearly or gradually, or the thickness variation trend of the contact portion 21 can start relatively slowly and then change linearly. In other words, the slope of the inclined surface of the contact portion 21 remains unchanged, or the slope of the inclined surface of the contact portion 21 can first change and then remain unchanged.

[0088] Thus, the abutting force exerted by the abutting portion 21 with varying thicknesses on the sidewall of the SIM card 1003 is proportional to its thickness. That is, the thicker the abutting portion 21, the greater the abutting force exerted on the sidewall of the SIM card 1003. Consequently, the abutting portion 21 as a whole exerts a force at an angle to the horizontal on the sidewall of the SIM card 1003. When this abutting force is directed toward the inner wall of the bottom of the card slot 10a, the SIM card 1003 is more stably installed within the card slot 10a.

[0089] Please refer to Figure 4. In some embodiments, the limiting body 22 has a second surface 22b set at an angle to the first surface 22a, and the abutting portion 21 has a top end portion 21a and a bottom end portion 21b. The surface of the top end portion 21a is flush with the second surface 22b, and both are lower than the end surface of the main body 11.

[0090] The second surface 22b is oriented in the same direction as the slot opening of the card slot 10a. The top 21a of the abutting portion 21 is closer to the second surface 22b, while the bottom 21b of the abutting portion 21 is further away from the second surface 22b. Therefore, the top 21a of the abutting portion 21 is closer to the slot opening of the card slot 10a, while the bottom 21b of the abutting portion 21 is closer to the slot bottom. This allows the abutting portion 21 to exert a horizontal downward force on the sidewalls of the SIM card 1003. Specifically, this abutting force is directed toward the bottom inner wall of the card slot 10a. This provides greater installation stability for the SIM card 1003 within the card slot 10a.

[0091] The surface of the top portion 21a is flush with the second surface 22b and both are lower than the end surface of the main body 11, so that the top portion and the limiting body 22 interfere with each other in the thickness direction of the main body 11. Then, the SIM card fixing mechanism 100 can be more smoothly inserted into the slot 1002 of the terminal device.

[0092] Please refer to Figures 3 and 7. In some embodiments, the SIM card fixing mechanism 100 further includes a partition plate 30, which divides the card slot 10a into a first sub-card slot 10a1 and a second sub-card slot 10a2. The first sub-card slot 10a1 and the second sub-card slot 10a2 are both provided with a limiting member 20, and the abutting portion 21 of each limiting member 20 extends into the corresponding sub-card slot 10a.

[0093] It can be understood that after adding the partition plate 30, the SIM card fixing mechanism 100 can accommodate two SIM cards 1003 at the same time, and the SIM cards 1003 are respectively arranged in the first sub-card slot 10a1 and the second sub-card slot 10a2, and corresponding limiting members 20 are provided in the two sub-card slots 10a, and their abutting parts 21 extend into the corresponding sub-card slots 10a to meet the function of limiting the SIM card 1003.

[0094] Please refer to Figure 10. In some embodiments, the mounting slot 10b includes a first sub-mounting slot 10b1 connected to the first sub-card slot 10a1 and a second sub-mounting slot 10b2 connected to the second sub-card slot 10a2. In the thickness direction of the base body 10, the first sub-mounting slot 10b1 and the second sub-mounting slot 10b2 are connected, and the two are staggered.

[0095] To accommodate the installation of two position limiting members 20, the mounting groove 10b is also divided by a partition plate 30 to form two sub-mounting grooves 10b for accommodating corresponding position limiting members 20. Because the first sub-mounting groove 10b1 and the second sub-mounting groove 10b2 are interconnected, the two position limiting members 20 can be formed within the corresponding sub-mounting grooves 10b through a single in-mold injection molding process. Furthermore, the two sub-mounting grooves 10b are interconnected, allowing the two position limiting members 20 to have a certain connection relationship. For example, the two position limiting members 20 can be formed within the corresponding sub-mounting grooves 10b through a single in-mold injection molding process. Since the two sub-mounting grooves 10b are interconnected, the two position limiting members 20 are an integrally molded structure.

[0096] Furthermore, the two sub-mounting grooves 10b are offset. As can be understood, the inner walls of the two sub-mounting grooves 10b are not completely aligned in the thickness direction of the base body 10, that is, their projections partially overlap. As a result, the bottom wall of one sub-mounting groove 10b inevitably extends into the groove space of the other sub-mounting groove 10b. This provides a certain amount of support force for the stopper 20 in the thickness direction of the base body 10, further enhancing the installation stability of the stopper 20 within the mounting groove 10b.

[0097] Please refer to Figure 11. In some embodiments, at least part of the partition plate 30 extends into the first sub-mounting groove 10b1 and the second sub-mounting groove 10b2, and the partition plate 30 does not abut the groove side wall of the first sub-mounting groove 10b1 or the groove side wall of the second sub-mounting groove 10b2.

[0098] It can be understood that in the thickness direction of the base body 10, the projection of the partition plate 30 partially overlaps with the projection of the sub-mounting groove 10b, and the partition plate 30 extending into the sub-mounting groove 10b also provides a certain supporting force to the limiting member 20. At the same time, the partition plate 30 does not separate the two limiting members 20, and the two limiting members 20 still have a certain connection relationship. In this way, the structural strength of the two limiting members 20 combined together is higher.

[0099] Referring to FIG. 5 , in some embodiments, the surface of the top portion 21 a of the abutting portion 21 is recessed to form a groove 20 a ; and / or the second surface 22 b of the limiting body 22 is recessed to form a groove 20 a .

[0100] It can be understood that the groove 20a can be formed on the second surface 22b of the limiting body 22, or the groove 20a can be formed on the surface of the top end portion 21a of the abutting portion 21; or the groove 20a can be formed on the second surface 22b of the limiting body 22 and the surface of the top end portion 21a of the abutting portion 21.

[0101] Here, the groove 20a is used to increase the deformation degree of the abutting portion 21 after being abutted, that is, after the groove 20a is added, the deformation amplitude of the abutting portion 21 is greater than when the groove 20a is not provided.

[0102] Referring to FIG. 3 , in some embodiments, the limiting member 20 further includes a sealing portion 23 . An annular groove structure 13 a is defined on the middle portion 13 , and the sealing portion 23 is disposed in the annular groove structure 13 a .

[0103] The sealing portion 23 is formed in the annular groove structure 13 a of the middle portion 13 , and is used to improve the sealing performance of the connection between the SIM card fixing mechanism 100 and the terminal device.

[0104] In some embodiments, the sealing portion 23 and the limiting body 22 are integrally formed.

[0105] It can be understood that the sealing portion 23 and the limiting body 22 are integrally formed on the base body 10 by in-mold injection molding, which can further save space and thickness.

[0106] Referring to Figure 12 , in some specific embodiments, the width g of the sealing portion 23 is greater than or equal to 0.55 mm, the width e of the abutting portion 21 is greater than or equal to 0.3 mm, and the width f of the retaining body 22 is greater than or equal to 0.45 mm. Therefore, for SIM cards of the same size, the SIM card retaining mechanism of the present application requires at least an additional 1.3 mm. Compared to the conventional SIM card holder 1, the SIM card retaining mechanism provided in the present application saves 1.1 mm.

[0107] The above is only a specific implementation method of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with this technical field can easily think of changes or replacements within the technical scope disclosed in this application, which should be covered by the protection scope of the present application.

Claims

1. A SIM card fixing mechanism, characterized in that: include: A base body, wherein the base body has a card slot for accommodating a SIM card; A limiter, the limiter is flexible, the limiter is arranged on the seat, and the limiter includes an abutment portion protruding toward the slot; Wherein, one end of the SIM card abuts against the slot wall of the card slot and the other end abuts against the abutting portion.

2. The SIM card fixing mechanism according to claim 1, characterized in that: The seat body includes a main body, a push top portion and a middle portion connected to the main body and the push top portion, the main body is provided with the card slot, the side wall of the main body is recessed toward the middle portion to form an installation slot connected to the card slot, and the limiting member is arranged in the installation slot.

3. The SIM card fixing mechanism according to claim 2, characterized in that: The limiting member includes a limiting body arranged in the installation slot, the limiting body has a first surface facing the slot, and the abutting portion is arranged on the first surface.

4. The SIM card fixing mechanism according to claim 3, characterized in that: The first surface is flush with the corresponding side wall of the main body.

5. The SIM card fixing mechanism according to claim 3, characterized in that: In the thickness direction of the seat body, the thickness of the abutting portion to the first surface gradually decreases.

6. The SIM card fixing mechanism according to claim 5, characterized in that: The limiting body has a second surface arranged at an angle with the first surface, the abutting portion has a top end and a bottom end, the surface of the top end is flush with the second surface, and both are lower than the end surface of the main body.

7. The SIM card fixing mechanism according to any one of claims 2 to 6, characterized in that: The SIM card fixing mechanism also includes a partition plate, which divides the card slot into a first sub-card slot and a second sub-card slot. The first sub-card slot and the second sub-card slot are both provided with the limiting member, and the abutting portion of each limiting member extends into the corresponding sub-card slot.

8. The SIM card fixing mechanism according to claim 7, characterized in that: The mounting slot includes a first sub-mounting slot connected to the first sub-card slot and a second sub-mounting slot connected to the second sub-card slot. In the thickness direction of the seat body, the first sub-mounting slot and the second sub-mounting slot are connected, and the first sub-mounting slot and the second sub-mounting slot are staggered.

9. The SIM card fixing mechanism according to claim 8, characterized in that: At least a portion of the partition plate extends into the first sub-mounting groove and the second sub-mounting groove, and the partition plate is spaced apart from a groove side wall of the first sub-mounting groove or a groove side wall of the second sub-mounting groove.

10. The SIM card fixing mechanism according to claim 6, characterized in that: The surface of the top end portion of the abutting portion is sunken to form a groove; and / or the second surface of the limiting body is sunken to form a groove.

11. The SIM card fixing mechanism according to claim 3, characterized in that: The position-limiting member further comprises a sealing portion, an annular groove structure is provided on the middle portion, and the sealing portion is arranged at the annular groove structure.

12. The SIM card fixing mechanism according to claim 11, characterized in that: The sealing portion and the limiting body are integrally formed.

13. A terminal device, characterized in that: It comprises a device body and a SIM card fixing mechanism as claimed in any one of claims 1 to 12, wherein a slot is provided on the device body, and the SIM card fixing mechanism is inserted into the slot.

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