USB flash disk

Abstract

The utility model is suitable for the technical field of data accessories, and provides a USB flash disk which comprises a shell assembly, a connector assembly and a control assembly. The shell assembly is used for installing the connector assembly and the control assembly. The connector assembly comprises a connector, a positioning plate and a mounting plate. The control assembly is provided with a connecting plate and a main control module; and the main control module is used for identifying host equipment and controlling the data transmission, reading and storage functions of the USB flash disk. According to the utility model, the tail end of the connector is connected with the positioning plate, and the positioning plate is rotatably connected with the mounting plate, so that the positioning plate and the connector are driven to rotate, the connector is connected with the host equipment, and the connection of other interfaces is prevented from being blocked; the problems that the connection of other USB interfaces is blocked, the connection condition of the USB flash disk is influenced by unstable connection, and even the data transmission of the USB flash disk is influenced are solved.

Description

Technical Field

[0001] The utility model belongs to the technical field of data accessories, and in particular relates to a U disk. Background Art

[0002] With the further development of digital products, related accessories have emerged. As a portable information storage tool, people often store some important information in the USB flash drive for mobile carrying or information transmission. The USB flash drive has the advantages of being small and easy to carry, large storage capacity, cheap price and reliable performance.

[0003] As a commonly used portable data storage device, the U disk is mainly composed of a shell, a PCB (Process Control Block) board, a storage chip, a controller, a connector and other components. The connector is an interface for connecting the U disk and the host device, usually using a USB (Universal Serial Bus) interface to facilitate data transmission between different devices.

[0004] In the prior art, the connector of the U disk is fixed on the U disk body in most cases, so that it is easy to block the connection of other USB interfaces during the connection process of the U disk host device, resulting in unstable connection, affecting the connection of the U disk and even affecting the data transmission of the U disk. Utility Model Content

[0005] The purpose of the embodiment of the utility model is to provide a U disk, aiming to solve the problem in the prior art that the connector of the U disk is mostly fixed on the U disk body, so that during the connection process of the U disk host device, it is easy to block the connection of other USB interfaces, resulting in unstable connection, affecting the connection of the U disk, and even affecting the data transmission of the U disk.

[0006] The utility model is implemented in this way: a USB flash drive, characterized in that the USB flash drive comprises: a housing component, a connector component and a control component;

[0007] The housing assembly is used for installing the joint assembly and the control assembly;

[0008] The connector assembly includes a connector, a positioning plate and a mounting plate, wherein the connector is mounted on the positioning plate, and the positioning plate is rotatably connected to the mounting plate so that the connector can be rotated to facilitate connection with the host device;

[0009] The control component is provided with a connecting plate, and the connecting plate is mounted on the housing component for connecting with the connecting head. The connecting plate is rotatably connected with the mounting plate so that the connecting head can be rotated to facilitate connection with the host device.

[0010] Preferably, the control component is further provided with a main control module, which is installed on the bottom surface of the connection plate. The main control module is used for the host device to identify and control the functions of data transmission, reading, and storage of the USB flash drive.

[0011] Preferably, the housing component includes an upper housing, a lower housing, and a protective shell. The upper housing is an irregular semi-closed housing. The upper housing is provided with a first installation position, a second installation position, and a third installation position. The first installation position is located on the front surface of the upper housing. The first installation position is provided with a fixing hole and a fixing protrusion is arranged on the inner wall surface of the upper housing and close to the hole wall of the fixing hole. The fixing hole and the fixing protrusion are used for the installation of the connector component. The second installation position is provided with a plurality of strip-shaped protrusions and the ends are higher than the lower bottom surface of the upper housing for facilitating the connection with the lower housing. The third installation position is provided with a plurality of U-shaped protrusions on the inner wall surface of the upper housing. The U-shaped protrusions are used for the installation of the control component.

[0012] Preferably, the lower housing is an irregular semi-closed housing. The upper end surface of the lower housing is provided with a plurality of cylindrical grooves and installation protrusions. The cylindrical grooves cooperate with the strip-shaped protrusions so that the upper housing and the lower housing are connected. The installation protrusions are used to cooperate with the U-shaped protrusions to connect the control component with the lower housing. The lower end surface of the lower housing is provided with an installation groove. The installation groove is provided with a plurality of cylindrical holes on the groove wall surface. The installation groove is used for the installation of the main control module and the protective shell. The protective shell is installed above the main control module. The protective shell is used to protect the main control module. The protective shell is provided with a plurality of strip-shaped rods. The strip-shaped rods cooperate with the cylindrical holes to connect the protective shell with the lower housing.

[0013] Preferably, the connector component further includes a protective sleeve. The protective sleeve is provided with a semi-closed housing. The protective sleeve is used to protect the connector head to prevent impurities from entering the connector head and affecting the connection between the connector head and the host device.

[0014] Preferably, the connector head is provided with an installation part and a connection part. The installation part is located on the bottom surface of the connection part. The installation part is provided with a first installation hole and is connected to the bottom surface of the positioning plate through a first fixing rod and contacts the installation plate. The end of the connection part is higher than the upper surface of the positioning plate. The connection part is used to connect with the host device for facilitating data reading and transmission.

[0015] Preferably, the positioning plate is provided with a positioning protrusion. The positioning protrusion is used to position the installation plate. The bottom surface of the positioning plate is provided with a first cylindrical protrusion. The first cylindrical protrusion is used for the installation of the installation plate. The positioning protrusion is located on the bottom surface of the positioning plate. The end of the positioning protrusion is higher than the end of the first cylindrical protrusion. The top surface of the positioning plate is provided with a second installation hole. The second installation hole is located at the center position of the positioning plate. The second installation hole is used for the installation of the connection part of the connector head.

[0016] Preferably, the mounting plate is configured as a disc-shaped structure, and the mounting plate is provided with a positioning hole and a connecting protrusion, the positioning hole cooperates with the positioning protrusion so that the connector is connected to the mounting plate, the positioning hole is configured as an arc so that the positioning protrusion moves along the hole wall of the positioning hole to facilitate the connection of the connector to the host device, the connecting protrusion is located at the bottom of the mounting plate, the connecting protrusion is used to connect with the control component, the upper surface of the mounting plate is provided with a first groove and a third mounting hole, the first groove cooperates with the first cylindrical protrusion so that the positioning plate is connected to the mounting plate, the third mounting hole is used to locate the position of the connector, and the third mounting hole is located at the center of the mounting plate; the inner diameter of the positioning hole is not less than the outer diameter of the positioning protrusion, and the end faces on both sides of the connecting protrusion are respectively higher than the upper surface and the lower surface of the mounting plate.

[0017] Preferably, the connecting plate is configured to be an irregular plate shape, and the connecting plate is provided with multiple groups of concentric annular grooves, the annular grooves cooperate with the connecting protrusions to connect the mounting plate and the connecting plate, the connecting protrusions on the mounting plate move along the groove walls of the annular grooves on the connecting plate, and the bottom surface of the connecting plate is provided with multiple fourth mounting holes to connect it to the outer shell assembly through the second fixing rod to facilitate the positioning of the main control module and the connector assembly, and the annular groove is located on the upper surface of the connecting plate.

[0018] Preferably, the main control module includes a main control board, a storage chip, and circuit elements. The main control board is electrically connected to the connector. The storage chip and circuit elements are installed on the main control board. The main control board is used to control the transmission and reading of data, and the storage chip is used to store data.

[0019] The utility model provides a U disk, in which the end of a connector is connected to a positioning plate, and the positioning plate is rotatably connected to a mounting plate to drive the positioning plate and the connector to rotate, so that the connector is connected to a host device and avoids blocking the connection of other interfaces. The control component is provided with a connecting plate and a mounting plate that are rotatably connected, which solves the problem of blocking the connection of other USB interfaces, resulting in unstable connection that affects the connection of the U disk and even affects the data transmission of the U disk. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A three-dimensional structural diagram of a USB flash drive provided by an embodiment of the utility model;

[0021] Figure 2 A schematic diagram of the internal structure of a USB flash drive provided by an embodiment of the utility model;

[0022] Figure 3 A schematic diagram of the structure of an upper housing in a USB flash drive provided by an embodiment of the utility model;

[0023] Figure 4Schematic diagram of a structure of a U - disk middle connector assembly provided by an embodiment of the present utility model;

[0024] Figure 5 Schematic diagram of a structure of a positioning plate in a U - disk provided by an embodiment of the present utility model.

[0025] In the drawings: 1. Housing assembly; 11. Upper housing; 111. Fixed hole; 112. Strip - shaped rod; 113. U - shaped convex block; 12. Lower housing; 121. Cylindrical groove; 122. Mounting convex block; 13. Protective shell; 131. Positioning hole; 132. Connecting convex block; 133. Third mounting hole; 2. Connector assembly; 21. Connector head; 22. Positioning plate; 221. Second mounting hole; 222. Positioning convex block; 223. First cylindrical convex block; 23. Mounting plate; 3. Control assembly; 31. Connecting plate; 311. Ring - shaped groove. Detailed implementation manners

[0026] In order to make the objectives, technical solutions and advantages of the present utility model more clear and understandable, the present utility model 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 utility model and are not used to limit the present utility model.

[0027] The following describes the specific implementation of the present utility model in detail with reference to specific embodiments.

[0028] As Figure 1-5 shown, it is a structural diagram of a U - disk provided by an embodiment of the present utility model, including: a housing assembly 1, a connector assembly 2, and a control assembly 3;

[0029] The housing assembly 1 is used for the installation of the connector assembly 2 and the control assembly 3;

[0030] The connector assembly 2 includes a connector head 21, a positioning plate 22, and a mounting plate 23. The connector head 21 is installed on the positioning plate 22, and the positioning plate 22 is rotatably connected to the mounting plate 23 so that the connector head 21 can rotate to facilitate connection with a host device;

[0031] The control assembly 3 is provided with a connecting plate 31. The connecting plate 31 is installed on the housing assembly 1 for connection with the connector head 21, and the connecting plate 31 is rotatably connected to the mounting plate 23 so that the connector head 21 can rotate to facilitate connection with a host device.

[0032] The control assembly 3 is further provided with a main control module. The main control module is installed on the bottom surface of the connecting plate 31, and the main control module is used for the functions of being recognized by a host device and controlling data transmission, reading, and storage of the U - disk.

[0033] In the embodiment of the utility model, preferably, the U disk can be suitable for connecting with mobile phones, vehicle-mounted equipment, computer hosts and other devices to facilitate data reading, transmission and storage. The U disk is mainly composed of a shell component 1, a connector component 2 and a control component 3. The shell component 1 is used to install the connector component 2 and the control component 3. The connector component 2 is mainly composed of a connector 21, a positioning plate 22 and a mounting plate 23. The U disk is connected to mobile phones, vehicle-mounted equipment, computer hosts and other devices through the connector 21. The connector 21 can select a connector that is compatible with the mobile phone, vehicle-mounted equipment or computer host to facilitate data reading, transmission and storage. The mounting plate 23 is rotatably connected to the connecting plate 31 on the control component 3, so that the entire connector component 2 can be rotated in a larger range and angle, which is more conducive to adjusting the installation angle of the connector 21 and preventing the outer shell component 1 from blocking other interfaces of the host device when the connector 21 is connected to the host device. The position of the connector 21 can be adjusted according to the position of the interface on the host device so that the U disk can be connected to the host device, and the connection is stable, preventing the data transmission, reading or storage of the U disk from being affected; the main control module in the control component 3 can be composed of the functional modules of the U disk, and can be provided with components such as a main control circuit board and a storage chip.

[0034] In one example of the present invention, a positioning plate 22 is provided at the end of the connector 21 to position the connector 21 in place, and a positioning protrusion 222 is provided on the positioning plate 22 to cooperate with the arc-shaped positioning hole 131 on the mounting plate 23 so that the positioning plate 22 drives the connector 21 to move along the aperture of the positioning hole 131 so that the connector 21 on the U disk can be connected to the host device and avoid blocking the connection of other interfaces. A connecting plate 31 is provided on the control component 3 to connect with the mounting plate 23, and the connecting protrusion 132 at the bottom of the mounting plate 23 cooperates with multiple groups of concentric annular grooves 311 on the connecting plate 31 so that the connector 21 moves along the groove wall of the annular groove 311 so that the U disk can rotate during use and fits more closely to the setting of the interface on the host device and is not easy to block the connection of other interfaces, thereby solving the problem of blocking the connection of other USB interfaces, causing unstable connection that affects the connection of the U disk, and even affects the data transmission of the U disk.

[0035] like Figure 1-3As shown, as a preferred embodiment of the present utility model, the housing assembly 1 includes an upper housing 11, a lower housing 12 and a protective housing 13. The upper housing 11 is an irregular semi-closed housing. The upper housing 11 is provided with a first mounting position, a second mounting position and a third mounting position. The first mounting position is located on the front surface of the upper housing 11. The first mounting position is provided with a fixing hole 111 and fixing bumps are provided on the inner wall surface of the upper housing 11 near the hole wall of the fixing hole 111. The fixing hole 111 and the fixing bumps are used for the installation of the joint assembly 2. The second mounting position is provided with a plurality of strip-shaped convex rods and the ends are higher than the lower bottom surface of the upper housing 11 for facilitating the connection with the lower housing 12. The third mounting position is provided with a plurality of U-shaped convex blocks 113 on the inner wall surface of the upper housing 11. The U-shaped convex blocks 113 are used for the installation of the control assembly 3.

[0036] In the embodiment of the present utility model, preferably, the housing assembly 1 may be provided with an upper housing 11, a lower housing 12 and a protective housing 13. The upper housing 11 and the lower housing 12 are connected by strip-shaped convex rods and the lower housing 12. After the upper housing 11 and the lower housing 12 are connected, a semi-closed housing is formed and a cavity structure is formed inside. A fixing hole 111 and fixing bumps are provided on the back surface for installing the joint assembly 2. The control assembly 3 is installed on the bottom surface of the joint assembly 2 and the cavity structure inside the housing assembly 1 is positioned in place by the U-shaped convex blocks 113.

[0037] As Figure 1-2 shown, as a preferred embodiment of the present utility model, the lower housing 12 is an irregular semi-closed housing. The upper end surface of the lower housing 12 is provided with a plurality of cylindrical grooves 121 and mounting bumps 122. The cylindrical grooves 121 cooperate with the strip-shaped convex rods to connect the upper housing 11 and the lower housing 12. The mounting bumps 122 are used to cooperate with the U-shaped convex blocks 113 to connect the control assembly 3 and the lower housing 12. The lower end surface of the lower housing 12 is provided with a mounting groove. The mounting groove is provided with a plurality of cylindrical holes on the groove wall surface of the mounting groove. The mounting groove is used for the installation of the main control module and the protective housing 13. The protective housing 13 is installed above the main control module. The protective housing 13 is used to protect the main control module. The protective housing 13 is provided with a plurality of strip-shaped rods 112. The strip-shaped rods 112 cooperate with the cylindrical holes to connect the protective housing 13 and the lower housing 12.

[0038] In the embodiment of the present utility model, preferably, the cylindrical groove 121 provided in the lower housing 12 cooperates with the strip-shaped convex rod of the upper housing 11 so that the upper housing 11 and the lower housing 12 are installed in place. The lower housing 12 can be an annular structure housing. The mounting bump 122 provided on one end face of the lower housing 12 can be set as a bent structure and cooperate with the U-shaped convex bump 113 on the upper housing 11 to facilitate fixing it in place. The mounting bump 122 is embedded on the U-shaped convex bump 113 through the bent part. The mounting groove provided on the lower end face of the lower housing 12 can fit the appearance shape of the main control module so as to install the circuit board or storage chip in the main control module in place. The cylindrical hole on the mounting groove provided on the other end face of the lower housing 12 cooperates with the strip-shaped rod 112 on the protective shell 13, so that the protective shell 13 is connected to the lower housing 12. The protective shell 13 can cover the main control module and be connected to the lower housing 12 to protect the main control module in place.

[0039] As Figure 1 shown, as a preferred embodiment of the present utility model, the joint assembly 2 further includes a protective sleeve. The protective sleeve is provided with a semi-closed housing. The protective sleeve is used to protect the connector 21 to prevent impurities from entering the connector 21 and affecting the connection between the connector 21 and the host device.

[0040] In the embodiment of the present utility model, preferably, the protective sleeve that the joint assembly 2 can also be provided with can be a rectangular semi-closed housing and the inner diameter size can be the same as the outer diameter size of the corresponding connector 21 to facilitate the protective sleeve to protect the connector 21.

[0041] As Figure 2-4 shown, as a preferred embodiment of the present utility model, the connector 21 is provided with a mounting portion and a connecting portion. The mounting portion is located at the bottom surface of the connecting portion. The mounting portion is provided with a first mounting hole and is connected to the bottom surface of the positioning plate 22 through a first fixing rod and contacts the mounting plate 23. The end of the connecting portion is higher than the upper surface of the positioning plate 22. The connecting portion is used to connect to the host device to facilitate data reading and transmission.

[0042] In the embodiment of the present utility model, preferably, a plurality of first mounting holes provided on the mounting portion of the connector 21 are installed on the positioning plate 22 through the first fixing rods. The first fixing rods can be screws. The connecting portion can be one end connected to the host device and its exterior is positioned on the positioning plate 22.

[0043] As Figure 5As shown, as a preferred embodiment of the utility model, the positioning plate 22 is provided with a positioning protrusion 222, and the positioning protrusion 222 is used to position the mounting plate 23. The bottom surface of the positioning plate 22 is provided with a first cylindrical protrusion 223, and the first cylindrical protrusion 223 is used for installing the mounting plate 23. The positioning protrusion 222 is located on the bottom surface of the positioning plate 22, and the end of the positioning protrusion 222 is higher than the end of the first cylindrical protrusion 223. The top surface of the positioning plate 22 is provided with a second mounting hole 221, and the second mounting hole 221 is located at the center of the positioning plate 22. The second mounting hole 221 is used for installing the connecting part of the connecting head 21.

[0044] In the embodiment of the utility model, preferably, the positioning plate 22 can be provided with a disc-shaped plate having a certain thickness, and a groove can also be provided on the side of the positioning plate 22 to be positioned in place with the upper shell body 11, and a second mounting hole 221 can be provided on the positioning plate 22 with an inner diameter that is the same as the outer diameter of the connecting part of the connecting head 21, and the first cylindrical protrusion 223 provided on the bottom surface of the positioning plate 22 can be located on both sides of the second mounting hole 221 and have an outer diameter greater than the outer diameter of the positioning protrusion 222 to facilitate positioning between the positioning plate 22 and the mounting plate 23.

[0045] like Figure 4 As shown, as a preferred embodiment of the utility model, the mounting plate 23 is set to a disc-shaped structure, the mounting plate 23 is provided with a positioning hole 131 and a connecting protrusion 132, the positioning hole 131 cooperates with the positioning protrusion 222 to connect the connector 21 to the mounting plate 23, the positioning hole 131 is set to an arc shape so that the positioning protrusion 222 moves along the hole wall of the positioning hole 131 to facilitate the connection of the connector 21 to the host device, the connecting protrusion 132 is located at the bottom of the mounting plate 23, and the connecting protrusion 132 is used Connected to the control component 3, the upper surface of the mounting plate 23 is provided with a first groove and a third mounting hole 133, the first groove cooperates with the first cylindrical protrusion 223 to connect the positioning plate 22 with the mounting plate 23, the third mounting hole 133 is used to locate the position of the connecting head 21, and the third mounting hole 133 is located at the center of the mounting plate 23; the inner diameter of the positioning hole 131 is not less than the outer diameter of the positioning protrusion 222, and the end faces of both sides of the connecting protrusion 132 are respectively higher than the upper surface and the lower surface of the mounting plate 23.

[0046] In the embodiment of the utility model, preferably, the mounting plate 23 is a disc-shaped structure and the outer diameter is not less than the outer diameter of the positioning plate 22, the groove width of the cylindrical first groove arranged on the mounting plate 23 is not less than the outer diameter of the first cylindrical protrusion 223 so that the first cylindrical protrusion 223 can be embedded in the first groove, the third mounting hole 133 on the mounting plate 23 can be aligned with the mounting portion of the positioning connector 21 so that the connector 21 is positioned in place to facilitate the rotation of the connector 21 driven by the positioning plate 22, the arc-shaped positioning hole 131 on the mounting plate 23, the aperture width is not less than the outer diameter of the positioning protrusion 222 on the positioning plate 22, and the positioning hole 131 can be provided in two groups and have a certain length, so that the connector 21 can rotate to a larger extent to facilitate the connection between the connector 21 and the host device.

[0047] like Figure 1-2 As shown, as a preferred embodiment of the utility model, the connecting plate 31 is configured to be an irregular plate shape, and the connecting plate 31 is provided with a plurality of groups of concentric annular grooves 311, and the annular grooves 311 cooperate with the connecting protrusions 132 to connect the mounting plate 23 with the connecting plate 31, and the connecting protrusions 132 on the mounting plate 23 move along the groove wall of the annular groove 311 on the connecting plate 31, and a plurality of fourth mounting holes are provided on the bottom surface of the connecting plate 31 to connect it to the housing assembly 1 through a second fixing rod to facilitate positioning of the main control module and the joint assembly 2, and the annular groove 311 is located on the upper surface of the connecting plate 31.

[0048] In the embodiment of the utility model, preferably, the connecting plate 31 can be an irregular plate and a plurality of semicircular grooves can be arranged on its side wall to facilitate the positioning of the upper shell 11 and the lower shell 12. The center position of the annular groove 311 arranged on the upper surface of the connecting plate 31 can be located on the same straight line as the connecting head 21 and its groove width can be the same as the outer diameter of the end of the connecting protrusion 132 on the mounting plate 23, so as to guide the connecting protrusion 132 to move on the annular groove 311, and according to the cooperation between the mounting plate 23 and the positioning plate 22, the connecting head 21 moves along the shape of the hole wall of the positioning hole 131. At this time, the arc-shaped positioning hole 131 can be set to be the same as the outer diameter of the annular groove 311 to facilitate the movement of the guiding connecting head 21, and the bottom surface of the connecting plate 31 can be used to install the control component 3.

[0049] like Figure 1-2 As shown, as a preferred embodiment of the utility model, the main control module includes a main control board, a storage chip, and circuit elements. The main control board is electrically connected to the connector 21, and the storage chip and circuit elements are installed on the main control board. The main control board is used to control the transmission and reading of data, and the storage chip is used to store data.

[0050] In an embodiment of the utility model, preferably, a main control board, a storage chip, circuit elements and other components can also be set in the main control module to facilitate the use of the U disk, wherein the main control board is electrically connected to the connector 21 to facilitate data storage, reading and writing, and the main control board is connected to the storage chip through circuit elements to facilitate data storage on the storage chip. The main control module can add corresponding functional elements according to the actual usage scenario of the U disk to facilitate the use of the U disk.

[0051] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. A USB flash drive, characterized in that: The USB flash drive includes: a housing assembly, a connector assembly, and a control assembly; The housing assembly is used for the installation of the connector assembly and the control assembly; The connector assembly includes a connector head, a positioning plate, and a mounting plate. The connector head is mounted on the positioning plate, and the positioning plate is rotatably connected to the mounting plate so that the connector head can be rotated to facilitate connection with a host device; The control assembly is provided with a connecting plate, and the connecting plate is mounted on the housing assembly for connection with the connector head. The connecting plate is rotatably connected to the mounting plate so that the connector head can be rotated to facilitate connection with a host device.

2. The USB flash drive according to claim 1, characterized in that: The control assembly is further provided with a main control module, and the main control module is mounted on the bottom surface of the connecting plate. The main control module is used for the functions of being recognized by a host device and controlling data transmission, reading, and storage of the USB flash drive.

3. The USB flash drive according to claim 2, characterized in that: The housing assembly includes an upper housing, a lower housing, and a protective shell. The upper housing is an irregular semi-closed housing. The upper housing is provided with a first mounting position, a second mounting position, and a third mounting position. The first mounting position is located on the front surface of the upper housing. The first mounting position is provided with a fixing hole and a fixing protrusion is provided on the inner wall surface of the upper housing and close to the hole wall of the fixing hole. The fixing hole and the fixing protrusion are used for the installation of the connector assembly; The second mounting position is provided with a plurality of strip-shaped protrusions and the ends are higher than the lower bottom surface of the upper housing to facilitate connection with the lower housing; The third mounting position is provided with a plurality of U-shaped protrusions on the inner wall surface of the upper housing, and the U-shaped protrusions are used for the installation of the control assembly.

4. The USB flash drive according to claim 3, characterized in that: The lower housing is an irregular semi-closed housing. The upper end surface of the lower housing is provided with a plurality of cylindrical grooves and mounting protrusions. The cylindrical grooves are matched with the strip-shaped protrusions so that the upper housing and the lower housing are connected. The mounting protrusions are used for being matched with the U-shaped protrusions so that the control assembly is connected with the lower housing. The lower end surface of the lower housing is provided with a mounting groove. The mounting groove is provided with a plurality of cylindrical holes on the groove wall surface. The mounting groove is used for the installation of the main control module and the protective shell. The protective shell is mounted above the main control module. The protective shell is used for protecting the main control module. The protective shell is provided with a plurality of strip-shaped rods, and the strip-shaped rods are matched with the cylindrical holes so that the protective shell is connected with the lower housing.

5. The USB flash drive according to claim 2, characterized in that: The connector assembly further includes a protective sleeve, and the protective sleeve is provided with a semi-closed housing. The protective sleeve is used for protecting the connector head to prevent impurities from entering the connector head and affecting the connection between the connector head and the host device.

6. The USB flash drive according to claim 2, characterized in that: The connector head is provided with a mounting portion and a connecting portion. The mounting portion is located on the bottom surface of the connecting portion. The mounting portion is provided with a first mounting hole and is connected to the bottom surface of the positioning plate through a first fixing rod and contacts the mounting plate. The end of the connecting portion is higher than the upper surface of the positioning plate. The connecting portion is used for connecting with a host device to facilitate data reading and transmission.

7. The USB flash drive according to claim 6, characterized in that: The positioning plate is provided with a positioning protrusion, and the positioning protrusion is used for positioning the mounting plate. The bottom surface of the positioning plate is provided with a first cylindrical protrusion, and the first cylindrical protrusion is used for the installation of the mounting plate. The positioning protrusion is located on the bottom surface of the positioning plate, and the end of the positioning protrusion is higher than the end of the first cylindrical protrusion. The top surface of the positioning plate is provided with a second mounting hole, and the second mounting hole is located at the center position of the positioning plate. The second mounting hole is used for the installation of the connecting portion of the connector head.

8. The USB flash drive according to claim 7, characterized in that: The mounting plate is configured as a disc-shaped structure, and a positioning hole and a connecting protrusion are provided on the mounting plate. The positioning hole cooperates with the positioning protrusion so that the connector is connected to the mounting plate. The positioning hole is configured as an arc so that the positioning protrusion moves along the hole wall of the positioning hole to facilitate the connection of the connector to the host device. The connecting protrusion is located at the bottom of the mounting plate, and the connecting protrusion is used to connect to the control component. A first groove and a third mounting hole are provided on the upper surface of the mounting plate. The first groove cooperates with the first cylindrical protrusion so that the positioning plate is connected to the mounting plate. The third mounting hole is used to locate the position of the connector, and the third mounting hole is located at the center of the mounting plate; the inner diameter of the positioning hole is not less than the outer diameter of the positioning protrusion, and the end faces on both sides of the connecting protrusion are respectively higher than the upper surface and the lower surface of the mounting plate.

9. The USB flash drive according to claim 8, characterized in that: The connecting plate is configured to be an irregular plate shape, and the connecting plate is provided with a plurality of groups of concentric annular grooves, and the annular grooves cooperate with the connecting protrusions to connect the mounting plate and the connecting plate, and the connecting protrusions on the mounting plate move along the groove walls of the annular grooves on the connecting plate, and a plurality of fourth mounting holes are provided on the bottom surface of the connecting plate to connect it to the outer shell assembly through a second fixing rod to facilitate positioning of the main control module and the joint assembly, and the annular groove is located on the upper surface of the connecting plate.

10. The USB flash drive according to claim 2, characterized in that: The main control module includes a main control board, a memory chip, and circuit elements. The main control board is electrically connected to the connector. The memory chip and circuit elements are mounted on the main control board. The main control board is used to control the transmission and reading of data, and the memory chip is used to store data.

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