SIM Card Management Device

Abstract

The present invention discloses a SIM card management device, which includes a chassis bottom shell having an installation slot, a main control board located in the installation slot, a SIM card strip mother board located in the installation slot and electrically connected to the main control board, a mode indicator light board electrically connected to the SIM card strip mother board, multiple SIM card strip boards electrically connected to the SIM card strip mother board, and a chassis cover connected to the chassis bottom shell and used to enclose the installation slot; the SIM card strip mother board is provided with a connector, and the SIM card strip board is provided with a plug pin; the SIM card strip board is provided with a plurality of SIM card seats for inserting SIM cards. The main control board, the SIM card strip mother board, and the mode indicator light board are all split structures, and the main control board and the mode indicator light board are respectively located at opposite ends of the SIM card strip mother board. Therefore, when a plurality of SIM card strip boards are inserted along the length direction of the SIM card strip mother board, the space between the main control board and the mode indicator light board can be maximally utilized, and thus the space inside the SIM card management device can be maximally utilized.

Description

Technical Field

[0001] The present invention relates to the field of communication devices, and particularly to a SIM card management device. Background Art

[0002] A SIM card (Subscriber Identification Module) management device is a device that can centrally manage a large number of SIM cards. With the development of information technology and the advent of global integration, the number of SIM cards managed by a single existing SIM card management device is not very large at present. There is an urgent need for a single device that can manage a large number of SIM cards to appear, so as to reduce the number of devices and lower the cost.

[0003] For existing SIM card management devices, most of them have all functions built into a single main board. For a SIM card management device with all functions built into a single main board, the waste of the main board is serious and the cost is extremely high. Some parts need to be made multi-layered, while some parts only need to be single-layered or double-layered. The main board has to be made multi-layered, resulting in serious waste. The number of SIM cards managed by a single such device is extremely small and the efficiency is low, resulting in a high hard cost for each SIM card management device on average. Summary of the Invention

[0004] The purpose of the present invention is to provide a SIM card management device, aiming to solve the problem of low internal space utilization rate of SIM card management devices in the prior art.

[0005] To achieve this purpose, the present invention adopts the following technical solutions:

[0006] A SIM card management device includes a chassis bottom case having a mounting groove, a main control board located in the mounting groove, a SIM card strip mother board located in the mounting groove and electrically connected to the main control board, a mode indicator board electrically connected to the SIM card strip mother board, a plurality of SIM card strip boards electrically connected to the SIM card strip mother board, and a chassis cover connected to the chassis bottom case and used to close the mounting groove; the main control board and the mode indicator board are respectively located at opposite ends of the SIM card strip mother board, the SIM card strip mother board is provided with a plurality of connectors along the length direction, and the SIM card strip board is provided with insertion pins inserted into the connectors; the SIM card strip board is provided with a plurality of SIM card holders for inserting SIM cards; the plurality of SIM card holders are sequentially distributed along the length direction of the SIM card strip board.

[0007] Further, a first connector is provided on the main control board, a second connector is provided on the SIM card strip mother board, a first plug-in connecting wire is provided between the main control board and the SIM card strip mother board, one end of the first plug-in connecting wire is inserted into the first connector, and the other end of the first plug-in connecting wire is inserted into the second connector.

[0008] Further, a third connector is provided on the mode indicator board, a fourth connector is provided on the SIM card strip motherboard, a second connecting cable is provided between the third connector and the SIM card strip motherboard, one end of the second connecting cable is plugged into the third connector, and the other end of the second connecting cable is plugged into the fourth connector.

[0009] Further, a status indicator for displaying the working status of the SIM card is provided on the SIM card holder.

[0010] Further, a card seat cover is further included. A plurality of first screw posts are provided at the bottom of the installation groove. The card seat cover is provided with first connection through holes corresponding to the first screw posts. A first connection screw is provided between the card seat cover and the first screw posts; the first connection screw passes through the first connection through hole and is threadedly connected to the first screw post; the top of the first screw post is higher than the top of the SIM card strip board.

[0011] Further, the card seat cover is provided with an observation hole corresponding to the status indicator, and the card seat cover is provided with a jack corresponding to the SIM card holder.

[0012] Further, reinforcing rib strips are provided on both opposite sides of the SIM card strip motherboard and on the bottom of the installation groove, and the SIM card strip board abuts against the top of the reinforcing rib strips.

[0013] Further, positioning and guiding members are provided at both opposite ends of the SIM card strip board. The positioning and guiding members include a positioning bottom plate fixedly installed on the inner wall of the installation groove and a plurality of positioning elastic members provided on the positioning bottom plate. The plurality of positioning elastic members are sequentially distributed along the length direction of the positioning bottom plate. The end of the SIM card strip board is inserted into the gap between adjacent positioning elastic members; a guiding plane for contacting the positioning elastic members is provided at the end of the SIM card strip board.

[0014] Further, the main control board, the SIM card strip motherboard, the SIM card strip board, and the mode indicator board are all rectangular circuit boards.

[0015] Further, an installation frame is provided in the installation groove. The mode indicator board is fixedly installed on the installation frame; a light-emitting member is provided on the mode indicator board. The installation frame is provided with a relief hole for accommodating the light-emitting member, and the inner wall of the installation groove is provided with a light-emitting hole corresponding to the relief hole.

[0016] Further, the mounting bracket includes a horizontal plate connected to the bottom of the mounting groove and a vertical plate connected to the horizontal plate; the mode indicator light board is located on a side of the vertical plate away from the light-emitting hole; the relief hole is formed in the vertical plate; the mode indicator light board is opposite to and spaced apart from the vertical plate, and the mode indicator light board is parallel to the vertical plate; at least one second screw post is provided on a side of the vertical plate close to the mode indicator light board, a second connection through hole corresponding to the second screw post is formed in the mode indicator light board, and a second connection screw is provided between the mode indicator light board and the vertical plate. The second connection screw passes through the second connection through hole and is threadedly connected to the second screw post; a projection of the light-emitting hole on the vertical plate is within a boundary range of the relief hole.

[0017] Further, at least one riveting hole is formed in the horizontal plate, a riveting groove corresponding to the riveting hole is formed in a bottom of the mounting groove of the chassis bottom shell, a riveting nail is provided between the horizontal plate and the chassis bottom shell, the riveting nail passes through the riveting hole and is inserted into the riveting groove, and the horizontal plate is riveted to the chassis bottom shell through the riveting nail.

[0018] Advantages of the present invention: The main control board, the SIM card strip mother board, and the mode indicator light board are all split structures. The SIM card strip mother board occupies the main space in the mounting groove, and the main control board and the mode indicator light board are respectively located at opposite ends of the SIM card strip mother board. Therefore, when a plurality of SIM card strip boards are inserted along the length direction of the SIM card strip mother board, the space between the main control board and the mode indicator light board can be maximally utilized for arranging the SIM card strip boards, thereby maximizing the utilization of the space inside the SIM card management device. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following will briefly introduce the drawings required for use in the embodiments or the description of the prior art. Obviously, the following drawings are only some embodiments of the present invention. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0020] Figure 1 It is a schematic diagram of the overall structure of the SIM card management device in the embodiment of the present invention;

[0021] Figure 2 It is an exploded view of the SIM card management device in the embodiment of the present invention;

[0022] Figure 3 It is a schematic diagram of the plug-in and mating of the main control board, the mode indicator light board and the SIM card strip mother board in the embodiment of the present invention;

[0023] Figure 4 Schematic diagram when the SIM card strip board is distributed along the length direction of the SIM card strip motherboard in the embodiment of the present invention;

[0024] Figure 5 Schematic diagram of the structure of the main control board in the embodiment of the present invention;

[0025] Figure 6 Schematic diagram of the structure of the SIM card strip board in the embodiment of the present invention;

[0026] Figure 7 Partial view of the SIM card strip motherboard in the embodiment of the present invention;

[0027] Figure 8 Partial view of the SIM card strip board in the embodiment of the present invention;

[0028] Figure 9 Schematic diagram when the card seat cover plate covers the top of the SIM card strip board in the embodiment of the present invention;

[0029] Figure 10 Schematic diagram of the structure of the mounting bracket in the embodiment of the present invention;

[0030] Figure 11 Schematic diagram of the installation of the mode indicator board in the embodiment of the present invention;

[0031] Figure 12 Schematic diagram of the structure of the light-emitting hole in the embodiment of the present invention;

[0032] Figure 13 Schematic diagram of the structure of the mode indicator board from the first perspective in the embodiment of the present invention;

[0033] Figure 14 Schematic diagram of the structure of the mode indicator board from the second perspective in the embodiment of the present invention;

[0034] In the figure:

[0035] 1. Chassis bottom case; 11. Installation groove; 12. First screw post; 13. Reinforcing rib; 14. Light-emitting hole; 15. Riveting groove;

[0036] 2. Main control board; 21. First connector; 22. First connecting wire;

[0037] 3. SIM card strip motherboard; 31. Connector; 32. Second connector; 33. Fourth connector;

[0038] 4. Mode indicator board; 41. Third connector; 42. Second connecting wire; 43. Light-emitting element; 44. Second connection through hole;

[0039] 5. SIM card strip board; 51. Plug-in pin; 52. SIM card holder; 53. Status indicator light; 54. Guide plane;

[0040] 6. Mounting bracket; 61. Relief hole; 62. Horizontal plate; 621. Riveting hole; 63. Vertical plate; 631. Second screw post; 64. Second connecting screw; 65. Riveting nail;

[0041] 7. Card holder cover plate; 71. First connecting through hole; 72. First connecting screw; 73. Observation hole; 74. Jack;

[0042] 8. Positioning and guiding part; 81. Positioning bottom plate; 82. Positioning elastic part; 9. Chassis cover. Detailed implementation manners

[0043] In order to make the objectives, technical solutions and advantages of the present invention clearer and more understandable, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention.

[0044] It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

[0045] It should be understood that the orientation or positional relationship indicated by the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", etc. is based on the orientation or positional relationship shown in the drawings, and is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0046] In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, the features defined with "first" and "second" may explicitly or implicitly include one or more of such features. In the description of the present invention, the meaning of "a plurality" is two or more unless otherwise specifically defined.

[0047] The implementation of the present invention will be described in detail below with reference to specific embodiments.

[0048] As Figures 1-14As shown in the figure, an embodiment of the present invention provides a SIM card management device, which includes a chassis bottom shell 1 having an installation groove 11, a main control board 2 located in the installation groove 11, a SIM card strip mother board 3 located in the installation groove 11 and electrically connected to the main control board 2, a mode indicator board 4 electrically connected to the SIM card strip mother board 3, multiple SIM card strip boards 5 electrically connected to the SIM card strip mother board 3, and a chassis cover 9 connected to the chassis bottom shell 1 and used to enclose the installation groove 11; the main control board 2 and the mode indicator board 4 are respectively located at opposite ends of the SIM card strip mother board 3, the SIM card strip mother board 3 is provided with a plurality of connectors 31 along the length direction, and the SIM card strip board 5 is provided with insertion pins 51 inserted into the connectors 31; the SIM card strip board 5 is provided with a plurality of SIM card holders 52 for inserting SIM cards; the multiple SIM card holders 52 are sequentially distributed along the length direction of the SIM card strip board 5.

[0049] In the embodiment of the present invention, the main control board 2 is a central control system, which has components such as a network port, a power-on button, an antenna module, and a current conversion port. When the insertion pins 51 on the SIM card strip board 5 are inserted into the connectors 31 on the SIM card strip mother board 3, the insertion is realized and at the same time the electrical connection is also realized. The SIM card strip board 5 is electrically connected to the main control board 2 through the SIM card strip mother board 3, and the SIM card to be managed is inserted into the SIM card holder 52 on the SIM card strip board 5. Since the main control board 2, the SIM card strip mother board 3, and the mode indicator board 4 are all split structures, and the SIM card strip mother board 3 occupies the main space in the installation groove 11, and the main control board 2 and the mode indicator board 4 are respectively located at opposite ends of the SIM card strip mother board 3, when a plurality of SIM card strip boards 5 are inserted along the length direction of the SIM card strip mother board 3, the space between the main control board 2 and the mode indicator board 4 can be maximally utilized for the layout of the SIM card strip boards 5, and thus the space inside the SIM card management device is maximally utilized. The circuit board layers of the main control board 2, the SIM card strip mother board 3, and the mode indicator board 4 are different. By splitting them into different circuit boards, there is no need to set the circuit layers of each board member to the maximum. Compared with integrating each board member into one board member, it can save costs and avoid waste. When any board member of the main control board 2, the SIM card strip mother board 3, and the mode indicator board 4 fails, only this board member needs to be repaired or replaced.

[0050] Further, please refer to Figure 3 , as another specific embodiment of the SIM card management device provided by the present invention, the main control board 2 is provided with a first connector 21, the SIM card strip mother board 3 is provided with a second connector 32, and a first insertion cable 22 is provided between the main control board 2 and the SIM card strip mother board 3. One end of the first insertion cable 22 is inserted into the first connector 21, and the other end of the first insertion cable 22 is inserted into the second connector 32. The main control board 2 and the SIM card strip mother board 3 are electrically connected through the first insertion cable 22, which can realize quick disassembly and assembly, and is convenient for repairing and replacing a certain board.

[0051] Further, please refer to Figure 3 , as another specific embodiment of the SIM card management device provided by the present invention, a third connector 41 is provided on the mode indicator board 4, a fourth connector 33 is provided on the SIM card strip motherboard 3, and a second connecting cable 42 is provided between the third connector 41 and the SIM card strip motherboard 3. One end of the second connecting cable 42 is plugged into the third connector 41, and the other end of the second connecting cable 42 is plugged into the fourth connector 33. The mode indicator board 4 and the SIM card strip motherboard 3 are electrically connected through the second connecting cable 42, further realizing the modularization of the internal circuit boards of the SIM card management device, facilitating the disassembly and assembly of each circuit board, and further meeting the requirements of maintenance and replacement.

[0052] Further, please refer to Figure 6 , as another specific embodiment of the SIM card management device provided by the present invention, a status indicator 53 for displaying the working status of the SIM card is provided on the SIM card holder 52. The status indicator 53 can show the working status of the SIM card. When one of the SIM cards is damaged and does not work, the corresponding SIM card strip board 5 is replaced as a whole, avoiding the waste caused by the idleness of the device.

[0053] Further, please refer to Figure 2 , as another specific embodiment of the SIM card management device provided by the present invention, it further includes a card holder cover plate 7. A plurality of first screw posts 12 are provided at the bottom of the installation groove 11. The card holder cover plate 7 is provided with first connection through holes 71 corresponding to the first screw posts 12. A first connection screw 72 is provided between the card holder cover plate 7 and the first screw posts 12; the first connection screw 72 passes through the first connection through hole 71 and is threadedly connected to the first screw post 12; the top of the first screw post 12 is higher than the top of the SIM card strip board 5. The card holder cover plate 7 can be made of plastic material, which can be used as a protective cover to prevent dust and damage to internal modules caused by accidental collision, and is located between the chassis cover 9 and the SIM card strip board 5 as an isolation protection part.

[0054] Further, please refer to Figure 9 , as another specific embodiment of the SIM card management device provided by the present invention, the card holder cover plate 7 is provided with an observation hole 73 corresponding to the status indicator 53 for observing the status indicator 53; the card holder cover plate 7 is provided with a jack 74 corresponding to the SIM card holder 52 for inserting or removing the SIM card from the SIM card holder 52.

[0055] Further, please refer to Figure 2, as another specific implementation manner of the SIM card management device provided by the present invention, reinforcing rib strips 13 are provided at the bottom of the installation groove 11 on the opposite sides of the SIM card strip motherboard 3, and the SIM card strip board 5 abuts against the top of the reinforcing rib strips 13. The reinforcing rib strips 13 can strengthen the strength of the chassis bottom shell 1 and can be used as support members at both ends of the SIM card strip board 5 to meet the stability during the installation of the SIM card strip board 5.

[0056] Further, please refer to Figure 8 , as another specific implementation manner of the SIM card management device provided by the present invention, positioning and guiding members 8 are provided at the opposite ends of the SIM card strip board 5. The positioning and guiding members 8 include a positioning bottom plate 81 fixedly installed on the inner wall of the installation groove 11 and a plurality of positioning elastic members 82 provided on the positioning bottom plate 81. The plurality of positioning elastic members 82 are sequentially distributed along the length direction of the positioning bottom plate 81, and the end of the SIM card strip board 5 is inserted into the gap between adjacent positioning elastic members 82; a guiding plane 54 for contacting the positioning elastic members 82 is provided at the end of the SIM card strip board 5. Since the SIM card strip board 5 is relatively long and there may be deviations during assembly, the positioning and guiding members 8 are provided at both ends thereof. When the SIM card strip board 5 is assembled, its end is inserted into the gap between adjacent positioning elastic members 82 for positioning. Since the positioning elastic members 82 have a deformation range, the SIM card strip board 5 can be successfully assembled even with slightly smaller deviations during assembly.

[0057] Further, please refer to Figure 3 , as another specific implementation manner of the SIM card management device provided by the present invention, the main control board 2, the SIM card strip motherboard 3, the SIM card strip board 5, and the mode indicator board 4 are all rectangular circuit boards, which are convenient for processing and layout, and further improve the internal utilization rate of the SIM card management device.

[0058] Further, please refer to Figures 10-11As another specific implementation of the SIM card management device provided by the present invention, a mounting frame 6 is provided in the mounting slot 11, and the mode indicator light board 4 is fixedly installed on the mounting frame 6; a light-emitting component 43 is provided on the mode indicator light board 4, and a clearance hole 61 for accommodating the light-emitting component 43 is opened on the mounting frame 6, and a light-emitting hole 14 corresponding to the clearance hole 61 is opened on the inner wall of the mounting slot 11. The mode indicator light panel 4 is installed on the chassis bottom shell 1 through the mounting frame 6, and the light-emitting component 43 on the mode indicator light panel 4 extends into the makeshift hole 61 on the mounting frame 6 to emit light. The indicator light emitted by the light-emitting component 43 on the mode indicator light panel 4 is emitted outward through the light outlet hole 14 on the inner wall of the mounting groove 11 of the chassis bottom shell 1 (that is, the side wall of the chassis bottom shell 1). Therefore, it is only necessary to open the light outlet hole 14 on the side wall of the chassis bottom shell 1, and no other mounting structure is required. Therefore, the structure of the side wall of the chassis bottom shell 1 is simplified, making the processing of the chassis bottom shell 1 relatively simple (the side wall of the chassis bottom shell 1 is in a vertical state, and it is more difficult to process a fixed mounting structure thereon; and the side wall of the chassis bottom shell 1 is the part directly exposed to the outside of the SIM card management device, and processing a fixed mounting structure thereon is bound to affect the aesthetics of the SIM card management device).

[0059] For further information, see Figure 11As another specific embodiment of the SIM card management device provided by the present invention, the mounting frame 6 includes a horizontal plate 62 connected to the bottom of the mounting groove 11 and a vertical plate 63 connected to the horizontal plate 62; the mode indicator light board 4 is located on the side of the vertical plate 63 away from the light exit hole 14; the clearance hole 61 is opened on the vertical plate 63; the mode indicator light board 4 and the vertical plate 63 are opposite and spaced apart, and the mode indicator light board 4 and the vertical plate 63 are parallel to each other; the vertical plate 63 has at least one second screw column 631 on the side close to the mode indicator light board 4, the mode indicator light board 4 is provided with a second connecting through hole 44 corresponding to the second screw column 631, a second connecting screw 64 is provided between the mode indicator light board 4 and the vertical plate 63, the second connecting screw 64 passes through the second connecting through hole 44 and is threadedly connected with the second screw column 631; the projection of the light exit hole 14 on the vertical plate 63 is located within the boundary range of the clearance hole 61. That is, the mounting frame 6 is in smooth contact with the bottom of the mounting groove 11 through the horizontal plate 62 to achieve stable installation in the chassis bottom shell 1. The vertical plate 63 is a vertical structure, and the clearance hole 61 thereon can be used as an installation and positioning structure for the light-emitting member 43, so that although the light-emitting member 43 is not directly installed on the side wall of the chassis bottom shell 1, it still has a certain height from the bottom of the chassis bottom shell 1, so as to emit the indicator light outward through the light-emitting hole 14 on the side wall of the chassis bottom shell 1. The mode indicator panel 4 is fixedly installed on the vertical plate 63 through the threaded connection between the second connecting screw 64 and the second screw column 631. The second screw column 631 can be used as a connecting member and also as a positioning member between the vertical plate 63 and the mode indicator panel 4, so as to maintain the stability of the distance between the mode indicator panel 4 and the vertical plate 63, and there will be no positional displacement during use. The projection of the light emitting hole 14 on the vertical plate 63 is located within the boundary range of the clearance hole 61, that is, the size of the light emitting hole 14 is smaller than the size of the clearance hole 61, so as to ensure that the vertical plate 63 cannot be seen through the light emitting hole 14, and thus the mode indicator light panel 4 cannot be seen, and only the light-emitting part 43 can be seen to achieve the best aesthetics.

[0060] For further information, see Figure 11, as another specific implementation manner of the SIM card management device provided by the present invention, at least one riveting hole 621 is formed in the horizontal plate 62, a riveting groove 15 corresponding to the riveting hole 621 is formed in the bottom of the installation groove 11 of the chassis bottom shell 1, a riveting nail 65 is arranged between the horizontal plate 62 and the chassis bottom shell 1, the riveting nail 65 penetrates through the riveting hole 621 and is inserted into the riveting groove 15, and the horizontal plate 62 is riveted to the chassis bottom shell 1 through the riveting nail 65. After the riveting nail 65 penetrates through the riveting hole 621 and is inserted into the riveting groove 15, an axial force is applied to the riveting nail 65, so that the head of the riveting nail 65 is thickened and deformed, and then the riveting nail 65 is connected to the inner wall of the riveting groove 15 and the riveting hole 621 is closed. Since the SIM card management device is placed on a plane during use, even if the riveting part between the riveting nail 65 and the chassis bottom shell 1 protrudes from the surface of the chassis bottom shell 1, it will not affect the appearance of the SIM card management device.

[0061] It can be understood that the solution in another specific implementation manner can be an implementable implementation scheme further improved on the basis of other embodiments.

[0062] Obviously, the above-mentioned embodiments of the present invention are only examples for clearly explaining the present invention, rather than limitations on the implementation manners of the present invention. For those of ordinary skill in the art, other different forms of changes or modifications can be made on the basis of the above description. It is not necessary and impossible to list all the implementation manners here. Any modifications, equivalent replacements, and improvements made within the spirit and principle of the present invention shall be included in the protection scope of the claims of the present invention.

Claims

1. SIM card management device, characterized in that, it includes a chassis bottom shell with an installation slot, a main control board located in the installation slot, a SIM card strip motherboard located in the installation slot and electrically connected to the main control board, a mode indicator board electrically connected to the SIM card strip motherboard, multiple SIM card strip boards electrically connected to the SIM card strip motherboard, and a chassis cover connected to the chassis bottom shell and used to enclose the installation slot; the main control board and the mode indicator board are respectively located at opposite ends of the SIM card strip motherboard, the SIM card strip motherboard is provided with a plurality of connectors along the length direction, and the SIM card strip board is provided with insertion pins inserted into the connectors; the SIM card strip board is provided with a plurality of SIM card holders for inserting SIM cards; the multiple SIM card holders are sequentially distributed along the length direction of the SIM card strip board; wherein, the main control board is a central control system, having a network port, a power-on button, an antenna module and a current conversion port; a first connector is provided on the main control board, a second connector is provided on the SIM card strip motherboard, a first plug-in wiring harness is provided between the main control board and the SIM card strip motherboard, one end of the first plug-in wiring harness is inserted into the first connector, and the other end of the first plug-in wiring harness is inserted into the second connector; a third connector is provided on the mode indicator board, a fourth connector is provided on the SIM card strip motherboard, a second plug-in wiring harness is provided between the third connector and the SIM card strip motherboard, one end of the second plug-in wiring harness is inserted into the third connector, and the other end of the second plug-in wiring harness is inserted into the fourth connector; positioning and guiding members are provided at opposite ends of the SIM card strip board, the positioning and guiding members include a positioning bottom plate fixedly installed on the inner wall of the installation slot and a plurality of positioning elastic members provided on the positioning bottom plate, the plurality of positioning elastic members are sequentially distributed along the length direction of the positioning bottom plate, and the end of the SIM card strip board is inserted into the gap between adjacent positioning elastic members; a guiding plane for contacting the positioning elastic members is provided at the end of the SIM card strip board.

2. The SIM card management device according to claim 1, characterized in that, a status indicator for displaying the working status of the SIM card is provided on the SIM card holder.

3. The SIM card management device according to claim 2, characterized in that, it further includes a card holder cover plate, the bottom of the installation slot is provided with a plurality of first screw posts, the card holder cover plate is provided with first connection through holes corresponding to the first screw posts, and first connection screws are provided between the card holder cover plate and the first screw posts; the first connection screws penetrate through the first connection through holes and are threadedly connected to the first screw posts; the top of the first screw posts is higher than the top of the SIM card strip board.

4. The SIM card management device according to claim 3, characterized in that, the card holder cover plate is provided with an observation hole corresponding to the status indicator, and the card holder cover plate is provided with an insertion hole corresponding to the SIM card holder.

5. The SIM card management device according to claim 1, characterized in that, Reinforcing ribs located at the bottom of the mounting groove are arranged on opposite sides of the SIM card strip motherboard, and the SIM card strip board abuts against the top of the reinforcing ribs.

6. The SIM card management device according to claim 1, It is characterized in that The main control board, the SIM card strip motherboard, the SIM card strip board and the mode indicator light board are all rectangular circuit boards.

7. The SIM card management device according to claim 1, It is characterized in that A mounting frame is provided in the mounting groove, and the mode indicator light panel is fixedly mounted on the mounting frame; a light-emitting component is provided on the mode indicator light panel, and the mounting frame is provided with a clearance hole for accommodating the light-emitting component, and an inner wall of the mounting groove is provided with a light-emitting hole corresponding to the clearance hole.

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