USB flash drive

Abstract

Disclosed in the present application is a USB flash drive, comprising a USB interface (100), a black colloid module (200), and an adapter circuit board (300), wherein the adapter circuit board (300) has a first surface (310) and a second surface (320) arranged opposite each other; the black colloid module (200) and the adapter circuit board (300) are stacked, and the black colloid module (200) is fitted onto the first surface (310) and is electrically connected to the adapter circuit board (300); the USB interface (100) is arranged on the second surface (320) and is electrically connected to the adapter circuit board (300); and an included angle between the USB interface (100) and the adapter circuit board (300) is greater than 0° and less than or equal to 90°. The solution can solve the problem of the large size of USB flash drives.

Description

Flash disk

[0001] The present application claims priority to the Chinese patent application No. 202421103205.8, filed on May 20, 2024, and entitled "Flash disk", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0002] The present application relates to the technical field of data storage devices, in particular to a flash disk. BACKGROUND

[0003] The flash disk is the abbreviation of USB (Universal Serial Bus) flash disk, also known as "U disk". The flash disk is a kind of micro high-capacity mobile storage product using USB interface without physical driver. The flash disk is connected with a computer or other devices through the USB interface to realize plug and play. The flash disk is widely used in daily work and study because it can backup data and realize portable mobile storage.

[0004] In the related art, the flash disk includes a USB interface, a circuit board and electronic components. The electronic components and the USB interface are both arranged on the circuit board and electrically connected with the circuit board. The electronic components include, but are not limited to, a USB master chip, a crystal oscillator, a resistor, a capacitor, a flash memory chip and the like.

[0005] However, since the electronic components and the USB interface need to be mounted on the circuit board, the circuit board needs to reserve a large mounting area, thereby causing the volume of the circuit board to be large, and thus causing the size of the flash disk to be large. SUMMARY

[0006] The present application discloses a flash disk to solve the problem of large size of the flash disk.

[0007] To solve the above problem, the present application adopts the following technical solution:

[0008] A flash disk includes a USB interface, a black glue body module and an adapter circuit board.

[0009] The adapter circuit board has a first surface and a second surface arranged oppositely. The black glue body module is stacked with the adapter circuit board, and the black glue body module is mounted on the first surface and electrically connected with the adapter circuit board. The USB interface is arranged on the second surface and electrically connected with the adapter circuit board. The included angle between the USB interface and the adapter circuit board is greater than 0 degrees and less than or equal to 90 degrees.

[0010] The technical solution adopted by the present application can achieve the following beneficial effects:

[0011] The USB interface, the adapter circuit board and the black gel module are stacked in sequence in the flash disk disclosed in the application. The flash disk in the application adopts the black gel module to replace the circuit board and the electronic components in the related art, so that the electronic components and the circuit board in the flash disk are integrated in an extremely small integrated packaging chip, and thus the overall size of the flash disk is effectively reduced. BRIEF DESCRIPTION OF DRAWINGS

[0012] The drawings described herein are used to provide further understanding of the application, form a part of the application, the illustrative embodiments of the application and the description thereof are used to explain the application, and do not constitute improper limitation on the application. In the drawings:

[0013] Fig. 1 to Fig. 3 are schematic diagrams of the structure of the flash disk disclosed in the embodiments of the application;

[0014] Fig. 4 is a schematic diagram of the structure of the flash disk in the related art.

[0015] Explanation of reference signs:

[0016] 100-USB interface, 200-black gel module, 300-adapter circuit board, 310-first surface, 320-second surface, 400-fixing support, 410-first plate body, 420-second plate body, 500-electromagnetic protection element, 600-circuit board of the flash disk in the related art. DETAILED DESCRIPTION

[0017] In order to make the purpose, technical scheme and advantages of the application more clear, the technical scheme of the application will be described clearly and completely in combination with the specific embodiments of the application and corresponding drawings. Obviously, the described embodiments are only a part of the embodiments of the application, but not all the embodiments. Based on the embodiments in the application, all other embodiments obtained by those skilled in the art without making creative efforts fall within the scope of protection of the application.

[0018] The flash disk in the related art adopts the design scheme of arranging electronic components on the circuit board. At this time, since the electronic components and the USB interface are both arranged on the circuit board, a large patch area needs to be reserved on the circuit board, so that the volume of the circuit board is large, and thus the size of the flash disk is large. Here, the size of the insertion direction of the flash disk is large. The insertion direction of the flash disk refers to the direction of the insertion of the flash disk into the equipment. Since the size of the insertion direction of the flash disk is large, the length of the flash disk protruding from the equipment is long when the flash disk is inserted into the equipment, and the flash disk is prone to falling due to collision during use. In the related art, the circuit board is usually in a long strip structure, so that the length direction of the flash disk is the insertion direction of the flash disk.

[0019] In addition, the orientation of the USB interface 100 in the related art is parallel to the plane on which the circuit board 600 is located. At this time, the circuit board and the USB interface 100 are arranged along the length direction of the USB flash disk, so that the total length of the USB flash disk is the length of the circuit board 600 plus the length of the USB interface 100. For example, as shown in FIG. 4, the structure further increases the length of the USB flash disk in the plugging direction.

[0020] The orientation of the USB interface described above can be understood as the plugging direction of the USB interface. Alternatively, the USB interface has an opening for plugging and mating with the USB plug on the device. The orientation of the USB interface here can be understood as the axis direction of the opening, so that the axis of the opening is parallel to the plane on which the circuit board is located. Alternatively, the USB interface usually includes a cylindrical shell. The orientation of the USB interface described above can be the axis direction of the cylindrical shell, so that the axis of the shell is parallel to the plane on which the circuit board is located. It can be understood that the axis direction of the cylindrical shell here can be the length direction.

[0021] The USB interface described above can include a plug-in end and a connection end arranged opposite to each other. The connection end is connected to the circuit board, and the plug-in end is away from the circuit board and is used for interfacing with the device. The orientation of the USB interface can be understood as the direction in which the connection end points to the plug-in end, that is, the direction in which the connection end points to the plug-in end is parallel to the plane on which the circuit board is located.

[0022] It can be seen that the size of the USB flash disk in the plugging direction in the related art is large, so that the USB flash disk protrudes a long size relative to the device during plugging of the USB flash disk with the device, and thus the user is easy to touch the USB flash disk by mistake, causing the risk of the USB flash disk falling off the device.

[0023] To solve at least one of the above problems, the technical solutions disclosed by various embodiments of the present application are described in detail below with reference to the accompanying drawings.

[0024] As shown in FIGS. 1 to 3, the present application discloses a USB flash disk, which includes a USB interface 100, a black rubber module 200, and a conversion circuit board 300.

[0025] The USB interface 100 is used to realize connection with the device. Specifically, the USB interface 100 can include a shell and a data terminal. The data terminal is used to transmit data, and the shell is used to carry the data terminal and is also used to realize plugging and mating with an external device. In a specific scheme, the shell can be a cylindrical structure, and the data terminal is arranged in the cylindrical structure.

[0026] The black gel module 200 is a memory device of the USB flash disk. The black gel module 200 is a very small integrated package chip. The controller, flash circuit, substrate and other electronic components are integrated by using the PIP (Package In Package) package technology, so that the size of the device is greatly reduced. The black gel module 200 itself is a memory device, and the black gel module 200 can store data alone. Since the black gel module 200 is an integrated package chip, the size of the black gel module 200 is only half of the size of the circuit board in the related art.

[0027] Optionally, the black gel module 200 can be of the UDP (User Datagram Protocol) type, and can also be of the MUDP (Message User Datagram Protocol) type. This is not limited in the present application.

[0028] The adapter circuit board 300 has a first surface 310 and a second surface 320 arranged opposite to each other. The black gel module 200 is stacked with the adapter circuit board 300, and the black gel module 200 is patch-mounted on the first surface 310 and electrically connected with the adapter circuit board 300. Here, the black gel module 200 and the adapter circuit board 300 can be welded by using the SMT (Surface Mounted Technology) reflow soldering process. The specific welding steps are as follows: tin paste is pre-coated on the first surface 310, then the black gel module 200 is patch-mounted on the first surface 310, reflow soldering is performed, and finally the adapter circuit board 300 and the black gel module 200 are detected and electrically tested.

[0029] The USB interface 100 is arranged on the second surface 320 and electrically connected with the adapter circuit board 300. In this case, the USB interface 100 is connected with the black gel module 200 through the adapter circuit board 300. The adapter circuit board 300 is used to electrically connect the USB interface 100 with the black gel module 200, and the adapter circuit board 300 does not store data. The adapter circuit board 300 can be a printed circuit board, and can be a rigid-flexible combined board, or the adapter circuit board 300 includes a flexible circuit board and a reinforcing plate arranged in a patch manner, etc. Of course, other structural forms can also be used, which are not limited in the present application.

[0030] In the specific data transmission process, the USB flash disk is plugged with the device through the USB interface 100, and the data is transmitted to the black gel module 200 through the USB interface 100 and the adapter circuit board 300 for storage.

[0031] In the embodiments disclosed in the present application, the flash disk uses the black gel module 200 to replace the circuit board and electronic components in the related art, so that the electronic components and the circuit board in the flash disk are integrated in an extremely small integrated packaging chip, thereby effectively reducing the overall size of the flash disk.

[0032] In addition, since the black gel module 200 can only be connected by patching, if the USB interface 100 is directly patched on the black gel module 200, the connection strength between the black gel module 200 and the USB interface 100 is low, and thus the risk of disengagement of the USB interface 100 is easily caused. Therefore, by setting the adapter circuit board 300, the black gel module 200 and the USB interface 100 are electrically connected through the adapter circuit board 300. Since the USB interface 100 is arranged on the adapter circuit board 300, and the adapter circuit board 300 has no structural limitation, the USB interface 100 can be fastened by using various fixing methods, thereby improving the connection strength of the USB interface 100, avoiding the risk of disengagement of the USB interface 100, and further improving the safety and reliability of the flash disk.

[0033] Alternatively, the USB interface 100 and the adapter circuit board 300 can be fixed by welding, threading, riveting and the like.

[0034] In addition, the flash disk disclosed in the present application uses the patching scheme of the black gel module 200 and the adapter circuit board 300, and does not need USB protocol conversion, so that the interface rate of the USB can be synchronized with the standard speed of the USB interface 100, thereby making the data transmission rate faster.

[0035] Further, in the present application, the included angle between the USB interface 100 and the adapter circuit board 300 is greater than 0 degrees and less than or equal to 90 degrees. That is, the orientation of the USB interface 100 is not parallel to the plane in which the adapter circuit board 300 is located, but has a certain included angle with the plane in which the adapter circuit board 300 is located. Specifically, it can also be understood here that the included angle between the side wall of the shell of the USB interface 100 and the second surface 320 is greater than 0 degrees and less than or equal to 90 degrees. Correspondingly, the supplementary angle between the side wall of the shell of the USB interface 100 and the second surface 320 is less than 180 degrees and greater than or equal to 90 degrees. At this time, the orientation of the USB interface 100 is not parallel to the plane in which the circuit board is located. Since the USB interface 100 is inclined or vertically arranged relative to the adapter circuit board 300, compared with parallel arrangement, the size between the USB interface 100 and the adapter circuit board 300 is further shortened, and thus the size of the flash disk disclosed in the present application is smaller. In the case that the size of the flash disk disclosed in the present application is smaller, the protruding size of the flash disk relative to the device is smaller during the process of plugging the flash disk with the device, and thus the user is not easy to accidentally touch the flash disk, thereby avoiding the risk of disengagement of the flash disk from the device.

[0036] In one scheme, when the USB interface 100 is located at the edge of the adapter circuit board 300, the angle between the USB interface 100 and the adapter circuit board 300 is greater than 0 degrees and less than or equal to 90 degrees. At this time, the USB interface 100 is inclined or vertically arranged relative to the adapter circuit board 300, and thus the length of the USB flash disk is the sum of the size of the USB interface 100 and the projection size of the adapter circuit board 300 (the thickness of the adapter circuit board 300 and the black body module 200 is ignored here), wherein the projection size of the adapter circuit board 300 is the part of the adapter circuit board 300 that exceeds the USB interface 100 after being projected to the direction of the USB interface 100. Since the USB interface 100 is inclined or vertically arranged, the length of the projection of the adapter circuit board 300 in the direction of the USB interface 100 is necessarily less than the length of the adapter circuit board 300, which reduces the length of the USB flash disk protruding from the equipment after the USB flash disk is inserted into the equipment, and further reduces the risk of the USB flash disk falling off the equipment.

[0037] However, the adapter circuit board 300 and the black body module 200 have a certain thickness in actual products, and the two can be regarded as a cuboid. In order to ensure that the length of the USB flash disk can be reduced, it is necessary to satisfy that the angle between the USB interface 100 and the adapter circuit board 300 is greater than arctan(H / L) degrees and less than or equal to 90 degrees, wherein H is the total thickness of the adapter circuit board 300 and the black body module 200, and L is the length of the longest side of the adapter circuit board 300 and the black body module 200. Of course, in the actual USB flash disk, the USB interface 100 will not be arranged at the edge of the adapter circuit board 300, but will have a certain distance from the edge of the adapter circuit board 300, and the distance is usually greater than Therefore, when the angle between the USB interface 100 and the adapter circuit board 300 is greater than 0 degrees and less than or equal to 90 degrees, the length of the USB flash disk can be reduced.

[0038] In another alternative embodiment, the USB interface 100 is oriented parallel to the thickness direction of the adapter circuit board 300. In this case, the angle between the USB interface 100 and the adapter circuit board 300 is equal to 90°. The USB interface 100 is vertically pasted on the adapter circuit board 300. In this case, the insertion direction of the USB flash disk is parallel to the thickness direction of the adapter circuit board 300, and thus the size of the USB flash disk in the insertion direction can be the sum of the length of the USB interface 100, the thickness of the adapter circuit board 300 and the thickness of the black body module 200. In this case, the size of the adapter circuit board 300 and the black body module 200 in the thickness direction is much smaller than the size of the adapter circuit board 300 and the black body module 200 in the length or width direction, and thus this scheme can further shorten the size of the USB flash disk. Therefore, during the insertion of the USB flash disk into the device, the size of the USB flash disk protruding from the device is further shortened, thereby further reducing the risk of the user accidentally touching the USB flash disk.

[0039] In another alternative embodiment, the orthographic projection of the USB interface 100 in the thickness direction of the adapter circuit board 300 can be located within the orthographic projection of the adapter circuit board 300. In this scheme, the USB interface 100 does not protrude from the adapter circuit board 300, thereby further shortening the size of the USB flash disk.

[0040] Further, the orthographic projection of the black body module 200 in the thickness direction of the adapter circuit board 300 can be located within the orthographic projection of the adapter circuit board 300. In this scheme, the black body module 200 does not protrude from the adapter circuit board 300, thereby further shortening the size of the USB flash disk.

[0041] The orthographic projection of the USB interface 100 in the thickness direction of the adapter circuit board 300 can be understood as the projection of the USB interface 100 on a plane perpendicular to the thickness direction of the adapter circuit board 300. Similarly, the orthographic projection of the black body module 200 in the thickness direction of the adapter circuit board 300 can be understood as the projection of the black body module 200 on a plane perpendicular to the thickness direction of the adapter circuit board 300.

[0042] In order to further improve the connection reliability of the adapter circuit board 300 and the USB interface 100, in another alternative embodiment, the USB flash disk disclosed in the present application can further comprise a fixing support 400, one end of the fixing support 400 can be fixedly connected with the USB interface 100, and the other end of the fixing support 400 can be fixedly connected with the adapter circuit board 300. In this scheme, the fixing support 400 can strengthen the connection strength between the USB interface 100 and the adapter circuit board 300, thereby improving the tensile strength of the USB interface 100, and further avoiding the risk of the USB interface 100 falling off from the adapter circuit board 300, and thus further improving the safety and reliability of the USB flash disk.

[0043] Optionally, the fixed support 400 and the USB interface 100, and the fixed support 400 and the adapter circuit board 300 can be connected by welding, bolts, rivets and the like.

[0044] In another optional solution, the adapter circuit board 300 can be provided with a plug-in hole, one end of the fixed support 400 is plugged into the plug-in hole, and the fixed support 400 is welded to the adapter circuit board 300. At this time, one end of the fixed support 400 can be inserted into the plug-in hole first, and then the plug-in hole is filled with welding material, so that the fixed support 400 and the adapter circuit board 300 can be welded. In this solution, part of the fixed support 400 can be embedded in the adapter circuit board 300, thereby further improving the connection strength of the fixed support 400 and the adapter circuit board 300, and further improving the security and reliability of the USB flash disk.

[0045] The application discloses a specific structure of the fixed support 400, of course, the fixed support 400 can also be other structures, which are not limited herein. Specifically, the fixed support 400 can include a first plate body 410 and a second plate body 420, one end of the first plate body 410 away from the second plate body 420 can be fixedly connected with the USB interface 100, and one end of the second plate body 420 away from the first plate body 410 can be fixedly connected with the adapter circuit board 300. In this solution, the fixed support 400 is a bent structure, which has better bending resistance, thereby making the fixed support 400 have better fixing and supporting performance on the USB interface 100.

[0046] Optionally, the included angle between the first plate body 410 and the second plate body 420 can be 90°, of course, the first plate body 410 and the second plate body 420 can also be other angles, which are not limited herein.

[0047] Of course, the fixed support 400 is not limited to the above structure, and can also be a reinforcing rib, a reinforcing plate and the like, for example, the fixed support 400 can be a triangular plate-shaped structure or a strip-shaped structure. This document only discloses several realizable ways of the fixed support 400, and is not used to limit the specific structure of the fixed support 400.

[0048] In another alternative embodiment, the number of the fixing supports 400 can be multiple, and the multiple fixing supports 400 can be distributed along the circumference of the USB interface 100. Here, the circumference of the USB interface 100 can be understood as the circumference of the shell of the USB interface 100, or the outer edge of the shell of the USB interface 100. In this scheme, the multiple fixing supports 400 further improve the connection strength between the USB interface 100 and the adapter circuit board 300. Meanwhile, the multiple fixing supports 400 are distributed along the circumference of the USB interface 100, so that the circumferential fastening force of the USB interface 100 is relatively balanced, thereby avoiding the risk of unilateral disengagement of the USB interface 100. Therefore, this scheme can further improve the reliability and safety of the USB flash disk.

[0049] In another alternative embodiment, the shell of the USB interface 100 can be an integral structure with the fixing support 400. In this scheme, the shell of the USB interface 100 is integrally formed with the fixing support 400, thereby further improving the connection strength between the USB interface 100 and the fixing support 400, and further improving the reliability and safety of the USB flash disk.

[0050] In another alternative embodiment, the USB flash disk can further include an electromagnetic protection member 500, which can make the USB flash disk avoid electrical and magnetic interference. The electromagnetic protection member 500 can be an EMC (Electro Magnetic Compatibility) device, such as a common-mode inductor, a magnetic bead, a filter capacitor, etc. Of course, the electromagnetic protection member 500 can also be an ESD (Electro-Static Discharge) device, etc. The electromagnetic protection member 500 can be arranged on the second surface 320 and distributed apart from the USB interface 100. In this scheme, the electromagnetic protection member 500 can be compatibly arranged on the adapter circuit board 300, thereby improving the electromagnetic compatibility, anti-static performance, etc. of the USB flash disk, and further enhancing the stability performance of the USB flash disk.

[0051] In the above embodiments, the focus is on the differences between the various embodiments, and the different optimization features between the various embodiments can be combined to form a better embodiment as long as they are not contradictory. Considering the brevity of the writing, further description is omitted here.

[0052] The above only describes the embodiments of the present application and is not intended to limit the present application. Those skilled in the art can make various modifications and changes to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principles of the present application shall be included in the scope of the claims of the present application.

Claims

1. A flash disk, comprising a USB interface (100), a black body module (200) and a conversion circuit board (300); the conversion circuit board (300) has a first surface (310) and a second surface (320) arranged oppositely, the black body module (200) is stacked with the conversion circuit board (300), and the black body module (200) is patch arranged on the first surface (310) and electrically connected with the conversion circuit board (300), the USB interface (100) is arranged on the second surface (320) and electrically connected with the conversion circuit board (300); the included angle between the USB interface (100) and the conversion circuit board (300) is greater than 0 degrees and less than or equal to 90 degrees.

2. The USB flash drive of claim 1, wherein, The direction of the USB interface (100) is parallel to the thickness direction of the conversion circuit board (300).

3. The USB flash drive of claim 2, wherein, Along the thickness direction of the conversion circuit board (300), the orthographic projection of the USB interface (100) is located in the orthographic projection of the conversion circuit board (300).

4. The USB flash drive of claim 3, wherein, Along the thickness direction of the conversion circuit board (300), the orthographic projection of the black body module (200) is located in the orthographic projection of the conversion circuit board (300).

5. The USB flash drive of claim 1, wherein, The flash disk further comprises a fixing support (400), one end of the fixing support (400) is fixedly connected with the USB interface (100), and the other end of the fixing support (400) is fixedly connected with the conversion circuit board (300).

6. The USB flash drive of claim 5, wherein, The conversion circuit board (300) is provided with a plug hole, one end of the fixing support (400) is plugged into the plug hole, and the fixing support (400) is welded with the conversion circuit board (300).

7. The USB flash drive of claim 5, wherein, The fixing support (400) comprises a first plate body (410) and a second plate body (420) bent oppositely, one end of the first plate body (410) away from the second plate body (420) is fixedly connected with the USB interface (100), and one end of the second plate body (420) away from the first plate body (410) is fixedly connected with the conversion circuit board (300).

8. The USB flash drive of claim 7, wherein, The number of the fixing support (400) is multiple, and multiple fixing supports (400) are distributed along the circumference of the USB interface (100).

9. The USB flash drive of claim 5, wherein, The USB interface (100) comprises a shell and a data terminal, the data terminal is arranged on the shell, and the shell and the fixing support (400) are an integral structure.

10. The USB flash drive of claim 1, wherein, The flash disk further comprises an electromagnetic shielding member (500), the electromagnetic shielding member (500) is arranged on the second surface (320) and is distributed with the USB interface (100).

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