Mobile storage device

Abstract

The application relates to the technical field of storage devices, and discloses a mobile storage device which comprises a plug-in body, a storage body, a flexible interconnection body and at least one movable component; an interface is arranged on the plug-in body, a main control chip and a storage chip are arranged on the storage body, the plug-in body is electrically interconnected with the storage body through the flexible interconnection body, the movable component comprises a connecting rod, a first movable piece and a second movable piece, one end of the first movable piece is fixed on the plug-in body, one end of the second movable piece is fixed on the storage body, and the two ends of the connecting rod are movably connected with the first movable piece and the second movable piece respectively. The application improves the reliability of the mobile storage device.

Description

Technical Field

[0001] This application relates to the field of storage device technology, and more specifically to a mobile storage device. Background Technology

[0002] With the development of information technology and the increasing intelligence of electronic products, mobile storage devices are widely used in many fields such as computers, mobile terminals, servers, industrial control equipment and vehicle systems.

[0003] In related technologies, mobile storage devices typically have their connectors directly soldered to the motherboard or controller. When a mobile storage device is accidentally dropped or subjected to external impact during use, the impact force will directly act on the connection between the connector and the motherboard. This impact force will be instantly transmitted to its tiny solder joints, which can easily cause the device to crack or even break completely. At best, this may result in instability such as poor contact, interrupted data transmission, or slow read / write speeds. At worst, it may cause the connector to completely separate from the internal circuitry, making the mobile storage device completely unrecognizable by the host and resulting in the permanent loss of important data. Utility Model Content

[0004] In view of this, this application provides a mobile storage device to solve the aforementioned technical problems.

[0005] This application discloses a mobile storage device, including: a connector, a storage body, a flexible interconnect, and at least one movable component; The connector is provided with an interface, and the storage body is provided with a main control chip and a storage chip. The connector and the storage body are electrically interconnected through the flexible interconnect. The movable component includes a connecting rod, a first movable member, and a second movable member. One end of the first movable member is fixed to the plug body, one end of the second movable member is fixed to the storage body, and both ends of the connecting rod are movably connected to the first movable member and the second movable member, respectively.

[0006] In one possible example, the first movable component includes a first shaft and a first fixing groove, the second movable component includes a second shaft and a second fixing groove, the first fixing groove is disposed on the plug body, the second fixing groove is disposed on the storage body, and one end of the first shaft is connected to the first fixing groove, one end of the second shaft is connected to the second fixing groove, and both ends of the connecting rod are respectively connected to the other ends of the first shaft and the second shaft.

[0007] In one possible example, the first and second shafts have the same structure and both include a first rotating body and a second rotating body. The first and second rotating bodies are coaxially arranged and rotate relative to each other. The first rotating body of the first shaft is connected to the first fixed groove, the first rotating body of the second shaft is connected to the second fixed groove, and the second rotating bodies of the first and second shafts are respectively connected to the two ends of the connecting rod.

[0008] In one possible example, the first rotating body has a first adapter block at one end facing the second rotating body, and the second rotating body has a corresponding first adapter groove. The first adapter block is connected in the first adapter groove for coaxial relative rotation of the first rotating body and the second rotating body.

[0009] In one possible example, an intermediate body is also included, with second adapter blocks at both ends of the intermediate body, and second adapter grooves at the corresponding ends of the first rotating body and the second rotating body. The second adapter blocks are respectively connected in the corresponding second adapter grooves for coaxial relative rotation of the first rotating body and the second rotating body.

[0010] In one possible example, the second rotating body of the first and second shafts is provided with a fastening groove facing the connecting rod, and the end of the connecting rod is connected in the fastening groove.

[0011] In one possible example, the connector is provided with a multiplexing chip and at least two interfaces, and the multiplexing chip is electrically connected to the interfaces.

[0012] In one possible example, the multiplexing chip has a common pin, a selection pin, a switch pin, and a switching pin electrically connected to the interface, which is used to select the on / off state of the common pin and the switching pin according to the high / low level state of the selection pin after the switch pin is turned on.

[0013] In one possible example, the interface includes a Type-C interface, a Type-A interface, a Lightning interface, a Mini-USB interface, or a Micro-USB interface.

[0014] In one possible example, the flexible interconnect includes a flexible circuit board or a flexible flat cable.

[0015] In summary, compared with the prior art, this application discloses a mobile storage device, including a connector, a storage body, a flexible interconnect, and at least one movable component. The connector is provided with an interface, the storage body is provided with a main control chip and a storage chip, the connector and the storage body are electrically interconnected through the flexible interconnect, and the movable component includes a connecting rod, a first movable member and a second movable member. One end of the first movable member is fixed to the connector, one end of the second movable member is fixed to the storage body, and both ends of the connecting rod are movably connected to the first movable member and the second movable member, respectively. That is, through the above configuration, the reliability of the mobile storage device is improved. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a schematic diagram of the structure of the mobile storage device of this application; Figure 2 This is a functional block diagram of the mobile storage device of this application; Figure 3 This is a schematic diagram of the first structure of the first or second set of shafts in this application; Figure 4 This is a schematic diagram of a second structure for the first or second set of shafts in this application; Figure 5 This is a pin configuration block diagram of the multiplexing chip in this application; Figure 6 This is the circuit control schematic diagram of the multiplexing chip in this application. Detailed Implementation

[0018] Exemplary embodiments will now be described in detail, examples of which are illustrated in the accompanying drawings. When the following description relates to the drawings, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments do not represent all embodiments consistent with this application. Rather, they are merely examples of apparatuses and methods consistent with some aspects of this application as detailed in the claims.

[0019] It should be noted that, in this document, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element. Furthermore, components, features, and elements with the same names in different embodiments of this application may have the same meaning or different meanings, the specific meaning of which must be determined by its interpretation in that specific embodiment or further in conjunction with the context of that specific embodiment.

[0020] It should be understood that the specific embodiments described herein are merely illustrative of this application and are not intended to limit this application.

[0021] In the following description, the use of suffixes such as "module," "part," or "unit" to denote elements is solely for the purpose of illustrative purposes and has no specific meaning in itself. Therefore, "module," "part," or "unit" may be used interchangeably.

[0022] In the description of this application, it should be noted that the terms "upper," "lower," "left," "right," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and 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, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on this application. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0023] The technical solutions shown in this application will be described in detail below through specific embodiments. It should be noted that the order of description of the following embodiments is not intended to limit the priority of the embodiments.

[0024] Please refer to Figure 1 and Figure 2 The mobile storage device in this application embodiment includes a connector 1, a storage body 2, a flexible interconnect 3, and at least one movable component 4.

[0025] In the specific implementation process, the plug-in body 1 can be an interface module close to the user and used to connect to the host (such as a computer or mobile phone). The plug-in body 1 can be provided with an interface 11, so that the plug-in body 1 can complete physical plugging and unplugging and basic signal lead based on the interface 11. The storage unit 2 can serve as the core functional module of the mobile storage device and is spaced apart from the connector 1 to maintain a certain distance. The storage unit 2 is equipped with a main control chip 21 and a storage chip 22. The main control chip 21 can execute storage control commands, manage data reading and writing, and operate the storage chip. The storage chip 22 can be used for actual data storage. Therefore, physically separating the main control chip 21 and the storage chip 22 from the impact-sensitive interface 11 is a prerequisite for improving the reliability of the mobile storage device in this embodiment.

[0026] Furthermore, the plug-in 1 is electrically interconnected with the storage body 2 through the flexible interconnect 3. That is, the flexible interconnect 3 can be located between the plug-in 1 and the storage body 2, acting as a "bridge" between the two. The flexible interconnect 3 can be used for signal transmission between the plug-in 1 and the storage body 2 and to provide physical buffering. Due to its own bendable and deformable physical characteristics, when the mobile storage device is subjected to external force, it can absorb and buffer energy through its own bending and torsion, and avoid the impact force being rigidly transmitted to the welding points inside the mobile storage device.

[0027] The movable component 4 constitutes the mechanical buffer skeleton of the mobile storage device in this embodiment. The movable component 4 can work together with the flexible interconnect 3 to provide multi-level buffering. Specifically, the movable component 4 includes a connecting rod 5, a first movable member 6 and a second movable member 7. One end of the first movable member 6 is fixed to the plug-in body 1, one end of the second movable member 7 is fixed to the storage body 2, and both ends of the connecting rod 5 are movably connected to the first movable member 6 and the second movable member 7, respectively.

[0028] Based on this, when the mobile storage device is accidentally dropped or subjected to a side impact, the impact force will first act on the plug-in body 1 (or storage body 2). At this time, the movable component 4 begins to play a role, specifically in the dispersion and absorption of force. That is, the impact force will cause the first movable component 6 and / or the second movable component 7 to rotate relative to the connecting rod 5. This rotation process can effectively convert the concentrated impact force into relative motion between components, thereby consuming most of the impact energy.

[0029] Furthermore, the rotation of the movable component 4 provides space for the relative displacement between the plug-in body 1 and the storage body 2, avoiding hard collisions. At the same time, as the movable component 4 deforms, the flexible interconnect 3 undergoes adaptive bending, further absorbing and buffering the remaining energy through its own flexibility. Thus, through the combination of the mechanical buffering of the movable component 4 and the physical buffering of the flexible interconnect 3, the stress ultimately transmitted to the solder joints of interfaces such as interface 11 and the solder joints of the main control chip 21 / storage chip 22 is greatly reduced. This fundamentally avoids the risk of solder joint cracking or breakage in related technologies, and greatly improves the reliability and data security of mobile storage devices in harsh operating environments.

[0030] Preferably, the active component 4 is symmetrically disposed on both sides of the plug body 1, the storage body 2 and the flexible interconnect body 3.

[0031] Of course, the mobile storage device in this embodiment can also be designed as a single movable component 4 structure, that is, the movable component 4, including the connecting rod 5, the first movable component 6 and the second movable component 7, is located only on one side of the plug-in body 1 and the storage body 2. In this case, such a layout can form an asymmetric hybrid buffer design of "rigid skeleton (movable component 4) + flexible link (flexible interconnect 3)". When the mobile storage device is subjected to external impact, the side where the movable component 4 is located becomes the main force-bearing and deformation-resistant side, which can still play the role of dispersing and absorbing impact force as described in the above embodiment. Similarly, the flexible interconnect 3 will bend and stretch freely to absorb the remaining energy and prevent the storage body 2 and the plug-in body 1 from having excessive relative displacement. This is a safety design with rigid buffer as the main component and flexible buffer as the auxiliary component. Moreover, the single-sided design of the movable component 4 can also simplify the structure, optimize space, and is conducive to cost control and compact product design.

[0032] Preferably, the flexible interconnect 3 includes a flexible circuit board or a flexible flat cable.

[0033] In one example, the flexible interconnect 3 is a flexible circuit board. Specifically, the flexible circuit board can use polyimide or polyester film as the substrate, and its interior is formed with precise conductive lines through an etching process. The two ends of the conductive lines can be electrically connected to the interface 11 on the plug-in 1 and the main control chip 21 on the storage 2 through solder pads, respectively. In this way, the flexible circuit board can not only transmit high-speed data signals and power, but its thin, light and flexible characteristics also allow it to be repeatedly bent, twisted or rolled when the moving component 4 moves, thereby effectively absorbing and buffering impact energy through the elastic deformation of the material.

[0034] In one example, the flexible interconnect 3 is a flexible flat cable, which can be composed of multiple parallel insulated wires encapsulated in a flexible insulating sheath. Connector joints can be pressed at both ends of the flexible flat cable to be plugged into and fixed to the corresponding sockets provided on the plug-in body 1 and the storage body 2, respectively. This connection method is convenient for assembly and maintenance. The flexible flat cable has a low cost and also has excellent flexibility and fatigue resistance. In this way, it can effectively absorb and buffer impact energy through elastic deformation, thereby improving the reliability of the mobile storage device.

[0035] Optionally, interface 11 may include a Type-C interface, a Type-A interface, a Lightning interface, a Mini-USB interface, or a Micro-USB interface, to select different types of physical interfaces according to the target usage scenario and user needs.

[0036] The number of interfaces 11 can be multiple. When one interface 11 is selected as a Type-C interface to adapt to the new generation of smartphones, tablets, and laptops, another interface 11 can be a traditional Type-A interface to be compatible with ordinary desktop computers or older laptop models. Alternatively, when users need to transfer data in independent ecosystem devices, one interface 11 can be selected as a Lightning interface, and another interface 11 can be selected as a Type-C or Micro-USB to achieve fast switching and interoperability across multiple platforms and devices. By configuring multiple interfaces 11 with different types, the adaptability and practicality of mobile storage devices are improved, while reducing the trouble for users to carry additional adapters or card readers, and simplifying the process of data transfer and backup operations.

[0037] In one example, the first movable component 6 includes a first set of shafts 61 and a first fixing groove 62, the second movable component 7 includes a second set of shafts 71 and a second fixing groove 72, the first fixing groove 62 is disposed on the plug-in body 1, the second fixing groove 72 is disposed on the storage body 2, and one end of the first set of shafts 61 is connected to the first fixing groove 62, one end of the second set of shafts 71 is connected to the second fixing groove 72, and the two ends of the connecting rod 5 are respectively connected to the other ends of the first set of shafts 61 and the second set of shafts 61.

[0038] Therefore, by fixing one end of the first set of shafts 61 and the second set of shafts 71 into the corresponding first fixing grooves 62 and second fixing grooves 72 respectively, a stable anchor point for the movable component 4 is formed. The connecting rod 5 then acts as a movable link, dynamically connecting the two anchor points. When the mobile storage device is subjected to external impact (such as a drop or impact), the impact force will act on the plug-in body 1 or the storage body 2. At this time, the impact force will be transmitted to the first set of shafts 61 through the first fixing groove 62 or to the second set of shafts 71 through the second fixing groove 72, and then further transmitted to the connecting rod 5, causing the connecting rod 5 to rotate around the other end of the first set of shafts 61 or the second set of shafts 71. This rotation process can effectively convert the concentrated impact force into relative motion between components, thereby consuming most of the impact energy, and fundamentally avoiding the risk of weld cracking or breakage in related technologies, greatly improving the reliability and data security of the mobile storage device in harsh operating environments.

[0039] Preferably, the shape of the first fixing groove 62 is adapted to the shape of one end of the first set of shafts 61 to accommodate and fix the end, and the shape of the second fixing groove 72 is adapted to the shape of one end of the second set of shafts 71 to accommodate and fix the end. This groove connection method realizes precise positioning and reliable connection between the movable component 4 and the plug-in body 1 and the storage body 2.

[0040] Optionally, the first fixing groove 62 and the first sleeve shaft 61, and the second fixing groove 72 and the second sleeve shaft 71, can adopt an interference fit. Through precise dimensional design, the end of the sleeve shaft needs a certain pressure to be embedded in the fixing groove, that is, the friction between the materials is used to achieve tight fixation without the need for additional fasteners. After the end of the sleeve shaft is embedded in the fixing groove, an adhesive (such as epoxy resin glue, cyanoacrylate quick-drying glue, etc.) can be applied to the joint for further reinforcement to ensure that it will not loosen under strong impact.

[0041] In one possible implementation of this application, the following combination is continued. Figure 3 and Figure 4 The first set of shafts 61 and the second set of shafts 71 have the same structure to reduce the types of parts, reduce mold costs and assembly complexity. Each set of shafts (the first set of shafts 61 and the second set of shafts 71) includes a first rotating body 81 and a second rotating body 82. The first rotating body 81 and the second rotating body 82 are coaxially arranged and rotate relative to each other.

[0042] In this configuration, the first rotating body 81 of the first shaft 61 is connected to the first fixed groove 62, and the first rotating body 81 of the second shaft 71 is connected to the second fixed groove 72. Thus, the first rotating body 81 can be regarded as the non-rotational connection end of the shaft. The second rotating body 82 of the first shaft 61 and the second rotating body 82 of the second shaft 71 are respectively connected to the two ends of the connecting rod 5. Thus, the second rotating body 82 can be regarded as the rotational connection end of the shaft. This ensures that the non-rotational connection end of the shaft is stably anchored to the storage body through the fixed groove, and that the two ends of the connecting rod 5 are respectively connected to the rotational connection ends of the two shafts.

[0043] Therefore, the active component 4 can have a multi-level buffer function with distinct layers. Specifically, when the mobile storage device is impacted, if the impact force is transmitted to the first rotating body 81 of the first shaft 61 through the plug body 1, the first rotating body 81 has a tendency to rotate relative to its second rotating body 82. This relative rotation can absorb and dissipate some of the impact energy. Then the impact force is further transmitted to the connecting rod 5 through the second rotating body 82 of the first shaft 61, causing the connecting rod 5 to rotate around the shaft. This rotation is another degree of freedom of movement, which can effectively change the direction of the force and disperse the impact force. Moreover, the above buffering process occurs synchronously on one side of the storage body 2, forming a symmetrical and coordinated buffering mechanism.

[0044] In one example, the first rotating body 81 has a first adapter block 83 at one end facing the second rotating body 82, and the second rotating body 82 has a corresponding first adapter groove 84. The first adapter block 83 is connected in the first adapter groove 84, that is, the first adapter block 83 of the first rotating body 81 can be precisely inserted into and connected in the first adapter groove 84 of the second rotating body 82. Through this insertion and engagement, the first rotating body 81 and the second rotating body 82 can achieve coaxial relative rotation.

[0045] In one example, combined Figure 4 The first set of shafts 61 and the second set of shafts 71 also include an intermediate body 91. The two ends of the intermediate body 91 are respectively provided with second adapter blocks 92, and the corresponding ends of the first rotating body 81 and the second rotating body 82 are respectively provided with second adapter grooves 85. The second adapter blocks 92 are respectively connected to the corresponding second adapter grooves 85. During assembly, the second adapter block 92 at one end of the intermediate body 91 can be connected to the second adapter groove 85 of the first rotating body 81, and the second adapter block 92 at the other end can be connected to the second adapter groove 85 of the second rotating body 82. Through this "double-joint" connection, the first rotating body 81 and the second rotating body 82 can achieve coaxial relative rotation through the intermediate body 91 as a bridge, thereby reducing single-point stress, that is, the impact force is distributed to the two connection points at both ends of the intermediate body 91, avoiding excessive stress concentration at a single "adapter block-adapter groove" joint, which helps to improve the fatigue life and reliability of the entire moving component 4.

[0046] It should be noted that the first adapter block 83 and the second adapter block 92 are preferably coaxial cylinders, and their cross-sectional profiles are T-shaped. Thus, the first rotating body 81 and the second rotating body 82 can engage with each other to form an axial lock, so that the first rotating body 81 and the second rotating body 82 will not separate during relative rotation, while not hindering their relative rotation. That is, through ingenious mechanical structure, stable and reliable coaxial rotation is achieved in a limited space, providing a basic and key joint mobility capability for the multi-level buffer mechanism of the entire mobile storage device.

[0047] Furthermore, the second rotating body 82 of the first set of shafts 61 and the second set of shafts 71 is provided with a fastening groove 86 facing the connecting rod 5. The end of the connecting rod 5 is connected in the fastening groove 86. That is, the fastening groove 86 provides a precise positioning and bearing space for the end of the connecting rod 5, ensuring that the connecting rod 5 will not easily separate from the shaft when subjected to impact, thus laying a solid foundation for the stability of the entire moving assembly 4.

[0048] The end of the connecting rod 5 can be configured as a ball head structure. Correspondingly, the fastening groove 86 is adapted to be designed as a ball socket to form a good fit with the ball head of the connecting rod 5. Thus, the mobile storage device can realize multi-degree-of-freedom rotation based on the connecting rod 5, so as to adapt to deformation more flexibly and efficiently, absorb and disperse impact energy, and improve the reliability of the mobile storage device.

[0049] Based on the above embodiments, this application enhances the function of the connector 1, that is, the connector 1 is provided with a multiplexing chip 12, which is electrically connected to at least two interfaces 11 and is used to control the conduction of the interface 11 as the target of use.

[0050] Taking one interface 11 as a Type-A interface and the other interface 11 as a Type-C interface as an example, the multiplexing chip 12 can connect its common port to the interface 11 that is the target of use, while keeping the other interfaces in an electrically disconnected state, thereby realizing the single-chip control of multiple interfaces to selectively conduct one of them.

[0051] In one example, continue to refer to Figure 5 and Figure 6 The multiplexing chip 12 has a common pin (A0+ / A0- / A1+ / A1-), a select pin (SEL), a switch pin (OE), and switching pins (B0+ / B0- / B1+ / B1-, C0+ / C0- / C1+ / C1-) that are electrically connected to the interface 11. Therefore, after the switch pin (OE) is turned on, the common pin (A0+ / A0- / A1+ / A1-) and the switching pin (B0+ / B0- / B1+ / B1-, C0+ / C0- / C1+ / C1-) are selected to be on or off based on the high / low level state of the selection pin (SEL). Specifically: In one example, the connector 1 is configured to have two interfaces 11, one of which is a Type-A interface and the other is a Type-C interface. The Type-A interface is electrically connected to a switching pin (B0+ / B0- / B1+ / B1-), and the Type-C interface is electrically connected to a switching pin (C0+ / C0- / C1+ / C1-). When the Type-A interface is inserted into the host, the switch pin (OE) is high, and the multiplexing chip 12 is turned on. When the selection pin (SEL) is high, the high level of the selection pin (SEL) corresponds to the switching pin (B0+ / B0- / B1+ / B1-). The multiplexing chip 12 controls the connection between the common pin (A0+ / A0- / A1+ / A1-) and the switching pin (B0+ / B0- / B1+ / B1-), and thus the interface 11 of the mobile storage device as the Type-A interface starts to work. Similarly, when the Type-C interface is plugged into the host, the switch pin (OE) is high, and the multiplexing chip 12 is turned on. When the select pin (SEL) is low, the low level of the select pin (SEL) corresponds to the switching pin (C0+ / C0- / C1+ / C1-). Then the multiplexing chip 12 controls the common pin (A0+ / A0- / A1+ / A1-) to be turned on with the switching pin (C0+ / C0- / C1+ / C1-), and the interface 11 of the mobile storage device as the Type-C interface starts to work.

[0052] In one example, the connector 1 has a first PCB board, and the interface 11 is electrically connected to the first PCB board. The connector 2 has a second PCB board, and the main control chip 21 and the memory chip 22 are electrically connected to the second PCB board. That is, the first PCB board can bring out the pins of the interface 11 and achieve a reliable electrical connection with one end of the flexible interconnect 3 through the line. The second PCB board can carry the high-speed communication between the main control chip 21 and the memory chip 22 and achieve an electrical connection with the other end of the flexible interconnect 3 through the line.

[0053] Both the first PCB board and the second PCB board can be rigid circuit boards.

[0054] Among them, the storage chip 22 can be a NAND flash memory chip.

[0055] The present application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only for the purpose of helping to understand the core ideas of the present application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of the present application. Therefore, the content of this specification should not be construed as a limitation of the present application.

Claims

1. A portable storage device, characterized in that, include: A connector, a storage unit, a flexible interconnect, and at least one movable component; The connector is provided with an interface, and the storage body is provided with a main control chip and a storage chip. The connector and the storage body are electrically interconnected through the flexible interconnect. The movable component includes a connecting rod, a first movable member, and a second movable member. One end of the first movable member is fixed to the plug body, one end of the second movable member is fixed to the storage body, and both ends of the connecting rod are movably connected to the first movable member and the second movable member, respectively.

2. The mobile storage device as claimed in claim 1, characterized in that, The first movable component includes a first shaft and a first fixing groove, and the second movable component includes a second shaft and a second fixing groove. The first fixing groove is disposed on the plug-in body, and the second fixing groove is disposed on the storage body. One end of the first shaft is connected to the first fixing groove, and one end of the second shaft is connected to the second fixing groove. The two ends of the connecting rod are respectively connected to the other ends of the first shaft and the second shaft.

3. The mobile storage device as described in claim 2, characterized in that, The first and second shafts have the same structure and each includes a first rotating body and a second rotating body. The first rotating body and the second rotating body are coaxially arranged and rotate relative to each other. The first rotating body of the first shaft is connected in the first fixed groove, the first rotating body of the second shaft is connected in the second fixed groove, and the second rotating body of the first shaft and the second rotating body of the second shaft are respectively connected to the two ends of the connecting rod.

4. The mobile storage device as described in claim 3, characterized in that, The first rotating body has a first adapter block at one end facing the second rotating body, and the second rotating body has a corresponding first adapter groove. The first adapter block is connected in the first adapter groove for the coaxial relative rotation of the first rotating body and the second rotating body.

5. The mobile storage device as described in claim 3, characterized in that, It also includes an intermediate body, with a second adapter block at each end of the intermediate body, and a second adapter groove at one end of each of the first rotating body and the second rotating body. The second adapter block is connected to the corresponding second adapter groove for coaxial relative rotation of the first rotating body and the second rotating body.

6. The mobile storage device as claimed in claim 3, characterized in that, The first set of shafts and the second set of shafts have fastening grooves facing the connecting rod, and the end of the connecting rod is connected in the fastening groove.

7. The mobile storage device as claimed in claim 1, characterized in that, The connector is provided with a multiplexing chip and at least two interfaces, and the multiplexing chip is electrically connected to the interfaces.

8. The mobile storage device as claimed in claim 7, characterized in that, The multiplexing chip has a common pin, a selection pin, a switch pin, and a switching pin electrically connected to the interface. After the switch pin is turned on, it selects whether the common pin and the switching pin are on or off according to the high / low level state of the selection pin.

9. The mobile storage device according to any one of claims 1 to 8, characterized in that, The interfaces include Type-C, Type-A, Lightning, Mini-USB, or Micro-USB.

10. The mobile storage device according to any one of claims 1 to 8, characterized in that, The flexible interconnect includes a flexible circuit board or a flexible flat cable.

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