USB flash disk

Abstract

The utility model discloses a USB flash disk, which comprises a USB interface (100), a black colloid module (200) and a switching circuit board (300), the adapter circuit board (300) is provided with a first surface (310) and a second surface (320) which are arranged back to back, the black colloid module (200) and the adapter circuit board (300) are stacked, the black colloid module (200) is arranged on the first surface (310) in a patch mode and electrically connected with the adapter circuit board (300), and the USB interface (100) is arranged on the second surface (320) and electrically connected with the adapter circuit board (300); the included angle between the USB (100) interface and the switching circuit board (300) is larger than 0 degree and smaller than or equal to 90 degrees. According to the scheme, the problem of large size of the USB flash drive can be solved.

Description

Technical Field

[0001] The utility model relates to the technical field of data storage devices, in particular to a USB flash drive. Background Art

[0002] USB flash drive is the abbreviation of USB (Universal Serial Bus) flash drive, also known as "U disk". USB flash drive is a micro high-capacity mobile storage product that uses USB interface and does not require a physical drive. USB flash drive is connected to computers and other devices through USB interface to achieve plug-and-play. USB flash drive is widely used in daily work and study because it can back up data and realize portable mobile storage.

[0003] In the related art, a USB flash drive includes a USB interface, a circuit board and electronic components, and the electronic components and the USB interface are both arranged on the circuit board and electrically connected to the circuit board. The electronic components here include but are not limited to USB main control chips, crystal oscillators, resistors, capacitors, flash memory chips and other devices.

[0004] However, since both the electronic components and the USB interface need to be mounted on the circuit board, a larger mounting area needs to be reserved on the circuit board, which results in a larger volume of the circuit board and thus a larger size of the USB flash drive. Utility Model Content

[0005] The utility model discloses a USB flash drive to solve the problem that the size of the USB flash drive is large.

[0006] In order to solve the above problems, the utility model adopts the following technical solutions:

[0007] A USB flash drive comprises a USB interface, a black colloid module and a transfer circuit board;

[0008] The adapter circuit board has a first surface and a second surface arranged opposite to each other, the black colloid module is stacked on the adapter circuit board, and the black colloid module patch is arranged on the first surface and electrically connected to the adapter circuit board, and the USB interface is arranged on the second surface and electrically connected to the adapter circuit board; the angle between the USB interface and the adapter circuit board is greater than 0 degree and less than or equal to 90°.

[0009] The technical solution adopted by the utility model can achieve the following beneficial effects:

[0010] In the USB flash drive disclosed by the utility model, the USB interface, the transfer circuit board and the black colloid module are stacked in sequence. The USB flash drive in the present application uses the black colloid module to replace the circuit board and electronic components in the related art, so that the electronic components and the circuit board in the USB flash drive are integrated into a very small integrated package chip, thereby effectively reducing the overall size of the USB flash drive. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] The drawings described herein are used to provide a further understanding of the present invention and constitute a part of the present invention. The exemplary embodiments of the present invention and their descriptions are used to explain the present invention and do not constitute an improper limitation on the present invention. In the drawings:

[0012] Figures 1 to 3 The present invention is a schematic diagram of the structure of a USB flash drive disclosed in an embodiment of the present utility model.

[0013] Description of reference numerals:

[0014] 100-USB interface, 200-black colloid module, 300-adapter circuit board, 310-first surface, 320-second surface, 400-fixing bracket, 410-first board body, 420-second board body, 500-electromagnetic protection component. DETAILED DESCRIPTION

[0015] In order to make the purpose, technical solution and advantages of the utility model clearer, the technical solution of the utility model will be clearly and completely described below in combination with the specific embodiments of the utility model and the corresponding drawings. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0016] The USB flash drive in the related art adopts the design scheme of laying out the electronic components on the circuit board. At this time, since the electronic components and the USB interface are both arranged on the circuit board, the circuit board needs to reserve a large patch area, which makes the volume of the circuit board larger, thus causing the size of the USB flash drive to be larger. Here, it means that the size of the USB flash drive in the plugging direction is larger. The plugging direction of the USB flash drive refers to the direction in which the USB flash drive is inserted into the device. Since the size of the plugging direction of the USB flash drive is larger, the length of the USB flash drive protruding from the device when it is plugged into the device is longer. In the related art, the circuit board is usually a long strip structure, so the length direction of the USB flash drive is the plugging direction of the USB flash drive.

[0017] In addition, the direction of the USB interface is parallel to the plane where the circuit board is located. At this time, the circuit board and the USB interface are arranged along the length direction of the USB flash drive, so the total length of the USB flash drive is the length of the circuit board plus the length of the USB interface, which further increases the length of the USB flash drive. Therefore, the size of the USB flash drive in the plugging direction in the related art is relatively large, so during the plugging process of the USB flash drive and the device, the USB flash drive protrudes a long distance relative to the device, which makes it easy for users to accidentally touch the USB flash drive, resulting in the risk of the USB flash drive falling off the device.

[0018] The orientation of the above-mentioned USB interface can be understood as the plug-in direction of the USB interface; or, the USB interface has an opening that is plugged into and cooperates with the USB plug on the device, and the orientation of the USB interface here can be understood as the axial direction of the above-mentioned opening, so the axis of the opening is parallel to the plane where the circuit board is located; or, the USB interface usually includes a shell of a cylindrical structure, and the orientation of the above-mentioned USB interface can be the axial direction of the shell of the cylindrical structure, so the axis of the shell is parallel to the plane where the circuit board is located; of course, the axial direction of the shell of the cylindrical structure here can be its length direction.

[0019] The USB interface may include an insertion end and a connection end that are disposed opposite to each other, the connection end being connected to the circuit board, the insertion end being away from the circuit board, and the insertion end being used to dock with the device. The direction from the connection end to the insertion end here can be understood as the direction of the USB interface, that is, the direction from the connection end to the insertion end is parallel to the plane where the circuit board is located.

[0020] The technical solutions disclosed in various embodiments of the present utility model are described in detail below in conjunction with the accompanying drawings.

[0021] like Figures 1 to 3 As shown, an embodiment of the utility model discloses a USB flash drive, which includes a USB interface 100 , a black colloid module 200 and a switching circuit board 300 .

[0022] The USB interface 100 is used to achieve connection with a device. Specifically, the USB interface 100 may include a housing and a data terminal, the data terminal is used to transmit data, the housing is used to carry the data terminal, and the housing is also used to achieve plug-in matching with an external device. In a specific solution, the housing may be a cylindrical structure, and the data terminal is arranged in the cylindrical structure.

[0023] The black colloid module 200 is a storage device of the USB flash drive. The black colloid module 200 uses the PIP (Package In Package) packaging technology to integrate the controller, flash memory circuit, substrate and other electronic components into a very small integrated package chip. The black colloid module 200 itself is a storage device, and the black colloid module 200 can store data independently. Since the black colloid module 200 is an integrated package chip, the size of the black colloid module 200 is only half the size of the circuit board in the related art.

[0024] Optionally, the black colloid module 200 may be of UDP type, or of MUDP type, which is not limited herein.

[0025] The adapter circuit board 300 has a first surface 310 and a second surface 320 disposed opposite to each other, the black colloid module 200 is stacked with the adapter circuit board 300, and the black colloid module 200 is mounted on the first surface 310 and electrically connected to the adapter circuit board 300. Here, the black colloid module 200 and the adapter circuit board 300 can be welded by an SMT reflow soldering process. The specific welding steps are: pre-coating solder paste on the first surface 310, then mounting the black colloid module 200 on the first surface 310, and then performing reflow soldering, and finally performing detection and electrical testing on the adapter circuit board 300 and the black colloid module 200.

[0026] The USB interface 100 is arranged on the second surface 320 and is electrically connected to the adapter circuit board 300. At this time, the USB interface 100 is connected to the black colloid module 200 through the adapter circuit board 300. The adapter circuit board 300 here is used to electrically connect the USB interface 100 with the black colloid module 200, and the adapter circuit board 300 does not store data. The adapter circuit board 300 here can be a printed circuit board, or a hard-soft board, or the adapter circuit board 300 includes a flexible circuit board and a reinforcement board that are fitted together. Of course, other structural forms can also be used, and this article does not limit this.

[0027] In the specific data transmission process, the USB flash drive is plugged into the device through the USB interface 100, and the data is transmitted to the black colloid module 200 through the USB interface 100 and the adapter circuit board 300 for storage.

[0028] In the embodiment disclosed in the present application, the USB flash drive uses a black colloid module 200 to replace the circuit board and electronic components in the related art, so that the electronic components and circuit board in the USB flash drive are integrated into a very small integrated package chip, thereby effectively reducing the overall size of the USB flash drive.

[0029] In addition, since the black colloid module 200 can only be connected by patch connection, if the USB interface 100 is directly patched on the black colloid module 200, the connection strength between the black colloid module 200 and the USB interface 100 is low, so it is easy to cause the risk of the USB interface 100 being detached. Therefore, by setting the adapter circuit board 300, the black colloid module 200 and the USB interface 100 are electrically connected through the adapter circuit board 300. At this time, the USB interface 100 is set on the adapter circuit board 300. The adapter circuit board 300 has no structural restrictions, so a variety of fixing methods can be used to fasten the USB interface 100, thereby improving the connection strength of the USB interface 100, thereby avoiding the risk of the USB interface 100 falling off, and further improving the safety and reliability of the USB flash drive.

[0030] Optionally, the USB interface 100 and the adapter circuit board 300 may be fixed by welding, threading, riveting, or other methods.

[0031] In addition, the USB flash drive disclosed in the present application adopts a black colloid module 200 and a switching circuit board 300 patch solution, and does not require USB protocol conversion, so the USB interface rate can synchronize the standard speed of the USB interface 100, thereby making the data transmission rate faster.

[0032] Further, in the present application, 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. That is to say, the orientation of the USB interface 100 is not parallel to the plane where the adapter circuit board 300 is located, but has a certain angle with the plane where the adapter circuit board 300 is located. Specifically, it can also be understood here that the 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. Of course, 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 where the circuit board is located. Since the USB interface 100 is tilted or vertically arranged relative to the adapter circuit board 300, the size between the USB interface 100 and the adapter circuit board 300 is further shortened, so the size of the USB flash drive disclosed in the present application is smaller. When the USB flash drive disclosed in the present application is smaller in size, the protrusion of the USB flash drive relative to the device is smaller during the process of plugging the USB flash drive into the device, making it less likely for the user to accidentally touch the USB flash drive, thereby avoiding the risk of the USB flash drive falling off the device.

[0033] In one solution, 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 tilted or vertically arranged relative to the adapter circuit board 300, so the length dimension of the USB flash drive is the orthographic projection dimension of the USB interface 100 and the length dimension of the adapter circuit board 300. Since the USB interface 100 is tilted or vertically arranged, the orthographic projection dimension of the USB interface 100 is necessarily smaller than the length dimension of the USB interface 100, so the length dimension of the USB flash drive is further shortened, thereby further avoiding the risk of the USB flash drive falling off the device.

[0034] In another optional embodiment, the orientation of the USB interface 100 is parallel to the thickness direction of the adapter circuit board 300. At this time, the angle between the USB interface 100 and the adapter circuit board 300 is equal to 90°. The USB interface 100 is vertically patched on the adapter circuit board 300. At this time, the plug-in direction of the USB flash drive is parallel to the thickness direction of the adapter circuit board 300, so the size of the USB flash drive in the plug-in 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 colloid. At this time, the size of the adapter circuit board 300 and the black colloid module 200 in the thickness direction is much smaller than the size of the adapter circuit board 300 and the black colloid module 200 in the length or width direction, so this solution can further shorten the size of the USB flash drive. Therefore, during the plug-in process of the USB flash drive and the device, the protruding size of the USB flash drive relative to the device is further shortened, thereby further reducing the risk of the user accidentally touching the USB flash drive.

[0035] In another optional embodiment, along the thickness direction of the adapter circuit board 300, the orthographic projection of the USB interface 100 can be located within the orthographic projection of the adapter circuit board 300. In this solution, the USB interface 100 does not protrude from the adapter circuit board 300, thereby further shortening the size of the USB flash drive.

[0036] Furthermore, along the thickness direction of the adapter circuit board 300, the orthographic projection of the black colloid module 200 can be located within the orthographic projection of the adapter circuit board 300. In this solution, the black colloid module 200 does not protrude from the adapter circuit board 300, thereby further shortening the size of the USB flash drive.

[0037] In order to further improve the connection reliability between the adapter circuit board 300 and the USB interface 100, in another optional embodiment, the USB flash drive disclosed in the present application may further include a fixing bracket 400, one end of which may be fixedly connected to the USB interface 100, and the other end of which may be fixedly connected to the adapter circuit board 300. In this solution, the fixing bracket 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, thereby avoiding the risk of the USB interface 100 falling off the adapter circuit board 300, and thus further improving the safety and reliability of the USB flash drive.

[0038] Optionally, the fixing bracket 400, the USB interface 100 and the adapter circuit board 300 may be connected by welding, bolts, rivets or the like.

[0039] In another optional solution, the adapter circuit board 300 may be provided with a plug hole, one end of the fixing bracket 400 is plugged into the plug hole, and the fixing bracket 400 is welded to the adapter circuit board 300. In this case, one end of the fixing bracket 400 may be first inserted into the plug hole, and then the plug hole is filled with welding material, so that the fixing bracket 400 is welded to the adapter circuit board 300. In this solution, part of the fixing bracket 400 may be buried in the adapter circuit board 300, thereby further improving the connection strength between the fixing bracket 400 and the adapter circuit board 300, and further improving the safety and reliability of the USB flash drive.

[0040] The present application discloses a specific structure of a fixing bracket 400. Of course, the fixing bracket 400 can also be other structures, which are not limited in this article. Specifically, the fixing bracket 400 can include a first plate body 410 and a second plate body 420 that are relatively bent. The end of the first plate body 410 that is away from the second plate body 420 can be fixedly connected to the USB interface 100, and the end of the second plate body 420 that is away from the first plate body 410 can be fixedly connected to the adapter circuit board 300. In this solution, the fixing bracket 400 is a bent structure, and the bent structure has better bending resistance, so that the fixing bracket 400 has better fixing and supporting performance for the USB interface 100.

[0041] Optionally, the angle between the first plate body 410 and the second plate body 420 may be 90°. Of course, the first plate body 410 and the second plate body 420 may also be other angles, which is not limited herein.

[0042] Of course, the fixing bracket 400 is not limited to the above structure, and can also be a reinforcing rib, a reinforcing plate, etc. For example, the fixing bracket 400 can be a triangular plate structure or a strip structure. This article only discloses several possible implementations of the fixing bracket 400, and is not intended to limit the specific structure of the fixing bracket 400.

[0043] In another optional embodiment, the number of the fixing brackets 400 can be multiple, and the multiple fixing brackets 400 can be distributed at intervals 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. In this solution, the multiple fixing brackets 400 further improve the connection strength between the USB interface 100 and the adapter circuit board 300. At the same time, the multiple fixing brackets 400 are distributed at intervals 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 detachment of the USB interface 100. Therefore, this solution can further improve the reliability and safety of the USB flash drive.

[0044] In another optional embodiment, the housing of the USB interface 100 can be an integrated structure with the fixing bracket 400. In this solution, the housing of the USB interface 100 and the fixing bracket 400 are integrally formed, thereby further improving the connection strength between the USB interface 100 and the fixing bracket 400, thereby further improving the reliability and safety of the USB flash drive.

[0045] In another optional embodiment, the USB flash drive may further include an electromagnetic protection component 500, where the electromagnetic protection component 500 can prevent the USB flash drive from electrical and magnetic interference. The electromagnetic protection component 500 may be an EMC (Electro Magnetic Compatibility) device, such as a common mode inductor, a magnetic bead, a filter capacitor and other devices. Of course, the electromagnetic protection component 500 may also be an ESD (Elertro Static Discharged) device. The electromagnetic protection component 500 may be disposed on the second surface 320 and spaced apart from the USB interface 100. In this solution, the electromagnetic protection component 500 can be compatible with being disposed on the adapter circuit board 300, thereby improving the electromagnetic compatibility, antistatic and other properties of the USB flash drive, and further enhancing the stability of the USB flash drive.

[0046] The above embodiments of the present invention focus on the differences between the various embodiments. As long as the different optimization features between the various embodiments are not contradictory, they can be combined to form a better embodiment. Considering the simplicity of the text, they will not be repeated here.

[0047] The above description is only an embodiment of the present invention and is not intended to limit the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent substitution, improvement, etc. made within the spirit and principle of the present invention shall be included in the scope of the claims of the present invention.

Claims

1. A USB flash drive, characterized in that: It comprises a USB interface (100), a black colloid module (200) and a switching circuit board (300); The adapter circuit board (300) comprises a first surface (310) and a second surface (320) which are arranged opposite to each other; the black colloid module (200) is stacked on the adapter circuit board (300); the black colloid module (200) patch is arranged on 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 the angle between the USB (100) interface and the adapter circuit board (300) is greater than 0 degrees and less than or equal to 90 degrees.

2. The USB flash drive according to claim 1, characterized in that: The orientation of the USB interface (100) is parallel to the thickness direction of the adapter circuit board (300).

3. The USB flash drive according to claim 2, characterized in that: Along the thickness direction of the adapter circuit board (300), the orthographic projection of the USB interface (100) is located within the orthographic projection of the adapter circuit board (300).

4. The USB flash drive according to claim 3, characterized in that: Along the thickness direction of the adapter circuit board (300), the orthographic projection of the black colloid module (200) is located within the orthographic projection of the adapter circuit board (300).

5. The USB flash drive according to claim 1, characterized in that: The USB flash drive further comprises a fixing bracket (400), one end of the fixing bracket (400) being fixedly connected to the USB interface (100), and the other end of the fixing bracket (400) being fixedly connected to the adapter circuit board (300).

6. The USB flash drive according to claim 5, characterized in that: The adapter circuit board (300) is provided with a plug hole, one end of the fixing bracket (400) is plugged into the plug hole, and the fixing bracket (400) is welded to the adapter circuit board (300).

7. The USB flash drive according to claim 5, characterized in that: The fixed bracket (400) comprises a first plate body (410) and a second plate body (420) that are bent relative to each other, wherein one end of the first plate body (410) that faces away from the second plate body (420) is fixedly connected to the USB interface (100), and one end of the second plate body (420) that faces away from the first plate body (410) is fixedly connected to the adapter circuit board (300).

8. The USB flash drive according to claim 7, characterized in that: There are a plurality of fixing brackets (400), and the plurality of fixing brackets (400) are distributed at intervals along the circumference of the USB interface (100).

9. The USB flash drive according to claim 5, characterized in that: The USB interface (100) comprises a housing and a data terminal, wherein the data terminal is arranged on the housing, and the housing and the fixing bracket (400) are integrated as a structural component.

10. The USB flash drive according to claim 1, characterized in that: The USB flash drive further comprises an electromagnetic protection element (500), wherein the electromagnetic protection element (500) is arranged on the second surface (320) and is spaced apart from the USB interface (100).

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