Mini USB flash drive

Abstract

This utility model relates to the field of computer storage devices and portable electronic accessories, specifically a mini USB flash drive. The purpose of this utility model is to at least solve the problems of large size and low speed of existing USB flash drives. The mini USB flash drive of this utility model includes: a housing, within which are a first PCBA circuit board and a second PCBA circuit board, electrically connected; the first and second PCBA circuit boards are stacked, wherein the first PCBA circuit board is vertically below the second PCBA circuit board; the first PCBA circuit board has a first USB interface, which is at least partially located outside the housing.

Description

Technical Field

[0001] This utility model relates to the field of computer storage devices and portable electronic accessories, specifically a mini USB flash drive. Background Technology

[0002] A USB flash drive, also known as a USB flash disk, is a miniature, high-capacity portable storage device that uses a USB interface and requires no physical drive. It connects to a computer or mobile phone via USB for plug-and-play functionality and is one of the most well-known portable storage devices. Commonly used USB flash drives in the industry are categorized as USB 2.0 and USB 3.0, with speeds mostly ranging from W: 5-30MB / s and R: 12-90MB / s. These are not only slow and unstable but also bulky and power-consuming. They are incompatible with the current era of mobile storage, which demands fast and timely communication, compact portability, and secure, stable data storage. Solid-state USB flash drives (SSDs) convert the Solid State Disk (SSD) protocol to the standard USB protocol, reducing the size to the size of a fingertip and achieving speeds of USB 3.2 Gen2 10Gb. While existing USB flash drives come in various types and styles, they still suffer from at least the following problems: Firstly, since mobile phone memory is limited, larger files are often stored on USB flash drives. However, existing USB flash drives only have storage functions. When a mobile phone is connected to a USB flash drive, it will occupy the phone's charging port. If the phone needs to charge at this time, the USB flash drive needs to be removed. Therefore, you can only choose one of connecting a USB flash drive and connecting a charging cable; the two cannot coexist. Secondly, existing USB flash drives have various electronic components on their internal PCB boards. These components occupy a certain amount of space, which limits the lower limit of the USB flash drive's size. This results in existing USB flash drives being too large in size or dimensions, especially when inserted into a mobile phone, making them appear particularly large and affecting the portability of the phone.

[0003] Third, existing USB flash drive encryption methods (such as password encryption) are prone to leakage and lack sufficient security, so existing USB flash drives still have security issues.

[0004] In addition, current mobile phone interfaces are all USB-C (USB 3.2 Den) interfaces with a transmission speed of up to 10Gb / s. The commonly used USB 2.0 and 3.0 interfaces are too slow to fully utilize the functions of existing mobile phones and meet people's demand for fast data transfer. Utility Model Content

[0005] The purpose of this invention is to at least solve the problem of the large size of existing USB flash drives.

[0006] To solve the above-mentioned technical problems, this utility model provides a mini USB flash drive, comprising: The housing contains a first PCBA circuit board and a second PCBA circuit board, which are electrically connected. The first PCBA circuit board and the second PCBA circuit board are stacked, wherein the first PCBA circuit board is vertically below the second PCBA circuit board. The first PCBA circuit board has a first USB interface, which is at least partially located outside the housing.

[0007] In a preferred embodiment of the mini USB flash drive of this utility model, the first PCBA circuit board has a second USB interface.

[0008] In a preferred embodiment of the mini USB flash drive of this utility model, the second USB interface is in the same or different orientation as the first USB interface.

[0009] In a preferred embodiment of the mini USB flash drive of this utility model, the second USB interface is located inside the housing.

[0010] In a preferred embodiment of the mini USB flash drive of this utility model, a fingerprint encryption module is provided inside the casing, and the fingerprint encryption module is electrically connected to the second PCBA circuit board.

[0011] In a preferred embodiment of the mini USB flash drive of this utility model, a limiting hole is provided on the upper surface of the shell, and the fingerprint encryption module corresponds to the limiting hole and is at least partially located within the limiting hole.

[0012] In a preferred embodiment of the mini USB flash drive of this utility model, the housing includes an upper cover and a lower cover, and the upper cover and the lower cover are detachably connected.

[0013] As a preferred embodiment of the mini USB flash drive of this utility model, it includes a protective sleeve, and the shell is installed inside the protective sleeve. Beneficial effects

[0014] This utility model solves the above-mentioned existing problems and other existing problems not mentioned above, and brings at least the following innovative advantages: This utility model of a mini USB flash drive, through the combination of a first PCBA circuit board and a second PCBA circuit board, distributes electronic components that were originally located on one circuit board in the prior art onto two different circuit boards. Furthermore, by stacking the two circuit boards, the product area is greatly reduced, significantly decreasing the length and width of the USB flash drive while only slightly increasing the thickness. This solves the problem of the large size of existing USB flash drives and makes them easy to carry.

[0015] This utility model of a mini USB flash drive, through the addition of a second USB interface, enables the connection of an external power bank or charger via the second USB interface, thus solving the current problem that USB flash drives cannot be connected to external charging devices when a mobile phone is plugged in.

[0016] This new mini USB flash drive solves the problem of insufficient security of existing USB flash drives by adding a fingerprint encryption module. Attached Figure Description

[0017] Figure 1 This is a perspective view of Embodiment 1 of the present utility model; Figure 2 This is a top view of Embodiment 1 of the present invention; Figure 3 for Figure 2 Cross-sectional view of position AA in the middle; Figure 4 This is an exploded view of Embodiment 1 of the present invention; Figure 5 This is a perspective view of Embodiment 2 of the present invention; Figure 6 This is a top view of Embodiment 2 of the present invention; Figure 7 This is an exploded view of Embodiment 2 of this utility model.

[0018] In the diagram: 1. Housing, 2. First PCBA circuit board, 3. Second PCBA circuit board, 4. First USB interface, 5. Second USB interface, 6. Fingerprint encryption module, 7. Limiting hole, 8. Top cover, 9. Bottom cover, 10. Protective cover, 11. First through hole, 12. Second through hole. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of this disclosure clearer, the technical solutions of the embodiments of this disclosure will be clearly and completely described below with reference to the accompanying drawings.

[0020] In the accompanying drawings, the same reference numerals represent the same parts. It should be noted that the described embodiments are only some, not all, of the embodiments disclosed herein.

[0021] Based on the embodiments described in this disclosure, all other embodiments obtained by those skilled in the art without inventive effort are within the scope of protection of this disclosure. Example 1

[0022] like Figures 1 to 4 As shown, the mini USB flash drive of this utility model includes: a housing 1, which has a first PCBA circuit board 2 and a second PCBA circuit board 3 inside, and the first PCBA circuit board 2 and the second PCBA circuit board 3 are electrically connected. Figure 3 The first PCBA circuit board 2 and the second PCBA circuit board 3 are shown in an overlapping position, wherein the first PCBA circuit board 2 is vertically below the second PCBA circuit board 3; Figure 4 The diagram shows an exploded view of the present invention, in which the first PCBA circuit board 2 has a first USB interface 4. Figure 3 This demonstrates that the first USB interface 4 is at least partially located outside the housing 1. Specifically, as shown... Figure 4 As shown, the housing 1 has a first through hole 11, through which the first USB interface 4 passes and is at least partially located outside the housing 1.

[0023] This utility model of a mini USB flash drive, through the combination of a first PCBA circuit board 2 and a second PCBA circuit board 3, distributes electronic components that were originally located on one circuit board in the prior art onto two different circuit boards, and stacks the two circuit boards, which greatly reduces the product area, significantly reducing the length and width of the USB flash drive, and only slightly increasing the thickness, but the increase in thickness is not significant. This solves the problem of the large size of existing USB flash drives and makes them easy to carry.

[0024] like Figure 1 , Figure 2 , Figure 3 and Figure 4 As shown, in this utility model mini USB flash drive, the first PCBA circuit board 2 has a second USB interface 5. The second USB interface 5 is in the same or different orientation as the first USB interface 4. Figure 4 The housing 1 is shown to also have a second through hole 12, and the second USB interface 5 corresponds to the second through hole 12. Figure 3 This demonstrates that the second USB interface 5 is located inside the housing 1.

[0025] This utility model of a mini USB flash drive, through the addition of a second USB port 5, enables the connection of an external power bank or charger via the second USB port 5, thus solving the problem that current USB flash drives cannot be connected to external charging devices when a mobile phone is plugged in.

[0026] like Figure 4 As shown, the aforementioned housing 1 includes an upper cover 8 and a lower cover 9, meaning the housing 1 is composed of the upper cover 8 and the lower cover 9, which are detachably connected. Furthermore, the first through hole 11 is located in the lower cover 9, and the second through hole 12 is located in the upper cover 8. In terms of dimensions, the preferred dimensions of the housing 1 are: length ≤ 30mm, width ≤ 20mm, and height ≤ 10mm.

[0027] Furthermore, it also includes a protective case 10, which is preferably made of silicone material, wherein... Figure 4 The specific structure of the protective cover 10 is shown, and the housing 1 is installed inside the protective cover 10. Example 2

[0028] like Figure 5 , Figure 6 and Figure 7 As shown, this embodiment 2 is the same as embodiment 1, except that a fingerprint encryption module 6 is provided inside the housing 1, and this fingerprint encryption module 6 is electrically connected to the second PCBA circuit board 3. See also Figure 7 The upper surface of the housing 1 is provided with a limiting hole 7, and the fingerprint encryption module 6 is located at least partially within the limiting hole 7.

[0029] This utility model of a mini USB flash drive solves the problem of insufficient security of existing USB flash drives by adding a fingerprint encryption module 6.

[0030] The terms "first," "second," and similar words used in the specification and claims do not indicate any order, quantity, or importance, but are merely used to distinguish different components. Similarly, the terms "an," "a," or "the" do not indicate a quantity limitation, but rather indicate the presence of at least one. The terms "comprising" or "including" mean that the elements or objects preceding "comprising" cover the elements or objects listed after "comprising" or "including" and their equivalents, but do not exclude other elements or objects. "Above," "below," "left," "right," etc., are only used to indicate relative positional relationships, and these relative positional relationships may also change accordingly when the absolute position of the described object changes.

[0031] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model. The scope of protection of the present utility model is defined by the appended claims. For those skilled in the art, other embodiments can be obtained based on the accompanying drawings without creative effort, and any modifications based on the claims of the present utility model are within the scope of protection of the present utility model.

Claims

1. A mini USB flash drive, characterized in that, include: The housing contains a first PCBA circuit board and a second PCBA circuit board, which are electrically connected. The first PCBA circuit board and the second PCBA circuit board are stacked, wherein the first PCBA circuit board is vertically below the second PCBA circuit board. The first PCBA circuit board has a first USB interface, which is at least partially located outside the housing.

2. The mini USB flash drive according to claim 1, characterized in that, The first PCBA circuit board has a second USB interface.

3. The mini USB flash drive according to claim 2, characterized in that, The second USB interface is in the same or different orientation as the first USB interface.

4. The mini USB flash drive according to claim 2, characterized in that, The second USB interface is located inside the housing.

5. The mini USB flash drive according to claim 1, characterized in that, The housing contains a fingerprint encryption module, which is electrically connected to the second PCBA circuit board.

6. The mini USB flash drive according to claim 5, characterized in that, The upper surface of the housing is provided with a limiting hole, and the fingerprint encryption module corresponds to the limiting hole and is at least partially located within the limiting hole.

7. The mini USB flash drive according to claim 1, characterized in that, The housing includes an upper cover and a lower cover, which are detachably connected.

8. The mini USB flash drive according to claim 1, characterized in that, Includes a protective sleeve, and the housing is installed inside the protective sleeve.

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