CN221960552U - An array type dual Micro SD card mobile storage device - Google Patents

Abstract

The utility model discloses an array-type dual Micro SD card mobile storage device, which comprises: a RAID chip is fixedly connected to the upper surface of a PCB printed circuit board, a Micro SD card holder is fixedly connected to the upper surface and the lower surface of the PCB printed circuit board, the inner wall of the Micro SD card holder is detachably connected to the Micro SD card, and the outer surface of the PCB printed circuit board is fixedly connected to a USB interface. Three different use modes can be formed by using dual Micro SD cards and a disk array chip. The normal mode is equivalent to two ordinary U disks; the RAID0 mode is the addition of the capacities of two SD cards, and the reading and writing speed is doubled; RAID1 is a redundant mode, which is equivalent to the capacity of one SD card, has high reliability, and can be used to save important data.

Description

An array type dual Micro SD card mobile storage device

Technical Field

The utility model relates to the technical field of Micro SD card mobile storage, in particular to an array type double Micro SD card mobile storage device.

Background Art

A USB flash drive is a portable storage device, usually composed of a solid-state memory and a USB interface. It can be connected to the USB interface of a computer, a smart phone, a tablet computer and other devices for storing and transmitting data. Currently, a USB flash drive is a commonly used mobile storage device for temporary data storage and exchange. A Micro SD card, as a micro storage card, is widely used in mobile devices such as mobile phones and digital cameras. A card reader with a USB interface can be used as a USB flash drive after inserting a Micro SD card. At the same time, its application range is wider than that of a conventional USB flash drive. Whether it is a conventional USB flash drive or an SD card, the read/write speed and data reliability are limited due to the characteristic limitations of the Flash chip used. A Chinese patent discloses a "mobile storage device" with an application number of "CN201621175407.9". By adding a password acquisition device, the mobile storage device is allowed to transmit data wirelessly only when the acquired password is correct. This protects the security of data information in the mobile storage device to a certain extent and prevents the leakage of important information. However, it cannot solve the problem that whether it is a conventional USB flash drive or an SD card, the read/write speed and data reliability are limited due to the characteristic limitations of the Flash chip used.

Utility Model Content

The purpose of the utility model is to solve at least one of the technical problems existing in the prior art, and to provide an array-type dual Micro SD card mobile storage device. By using dual Micro SD cards and a disk array chip, three different usage modes can be formed. The normal mode is equivalent to two ordinary U disks; the RAID0 mode is the addition of the capacity of two SD cards, and the reading and writing speed is doubled; RAID1 is a redundant mode, which is equivalent to the capacity of one SD card, has high reliability, and can be used to save important data.

The utility model also provides the above-mentioned array-type dual Micro SD card mobile storage device, comprising: a PCB printed circuit board, a RAID chip is fixedly connected to the upper surface of the PCB printed circuit board, a Micro SD card socket is fixedly connected to the upper surface and the lower surface of the PCB printed circuit board, a Micro SD card is detachably connected to the inner wall of the Micro SD card socket, and a USB interface is fixedly connected to the outer surface of the PCB printed circuit board.

According to the array-type dual Micro SD card mobile storage device described in the utility model, the outer surface of the PCB printed circuit board is detachably connected to a shell, and the shell covers the PCB printed circuit board, RAID chip and Micro SD card socket, so that the internal components of the device are effectively protected. At the same time, the detachability of the shell also facilitates maintenance and replacement.

According to the array-type dual Micro SD card mobile storage device described in the utility model, the outer surface of the shell is provided with a through hole, the position of the through hole is opposite to the position of the Micro SD card socket, the user can easily insert and remove the Micro SD card, thereby improving the user's operating convenience.

According to the array-type dual Micro SD card mobile storage device described in the utility model, the inner wall of the through hole is movably connected to the Micro SD card, and the inner wall of the shell fits with the outer surface of the USB interface, providing a more stable connection and reducing damage or looseness caused by plugging and unplugging.

According to the array-type dual Micro SD card mobile storage device described in the utility model, the upper surface of the Micro SD card holder is in contact with the inner wall of the shell, and the upper surface of the RAID chip is in contact with the inner wall of the shell, which can effectively fix the Micro SD card holder and the RAID chip, reduce the space waste between components, and make the device more compact.

According to the array-type dual Micro SD card mobile storage device described in the utility model, the outer surface of the shell is provided with a fixing port, the inner wall of the fixing port abuts against the USB interface, the USB interface is effectively fixed, and the possibility of loosening or damage caused by external impact is reduced.

According to the array-type dual Micro SD card mobile storage device described in the utility model, the position of the Micro SD card socket is opposite to the position of the RAID chip, and the position of the RAID chip is opposite to the position of the USB interface, so that the data transmission path is shortened, the data transmission efficiency is improved, and the internal layout of the device is also optimized.

Beneficial Effects

1. Compared with the prior art, this array-type dual Micro SD card mobile storage device can form three different usage modes by using dual MicroSD cards and disk array chips. The normal mode is equivalent to two ordinary U disks; the RAID0 mode is the addition of the capacity of two SD cards, and the reading and writing speed is doubled; RAID1 is a redundant mode, which is equivalent to the capacity of one SD card.

2. Compared with the prior art, this array-type dual Micro SD card mobile storage device has high reliability and can be used to store important data.

BRIEF DESCRIPTION OF THE DRAWINGS

The present invention is further described below with reference to the accompanying drawings and embodiments:

FIG. 1 is an exploded schematic diagram of an array-type dual Micro SD card mobile storage device of the present invention.

Legend:

1. Shell; 2. USB interface; 3. PCB printed circuit board; 4. RAID chip; 5. Micro SD card holder; 6. Micro SD card.

DETAILED DESCRIPTION

This section will describe in detail the specific embodiments of the utility model. The preferred embodiments of the utility model are shown in the accompanying drawings. The purpose of the accompanying drawings is to supplement the description of the text part of the specification with graphics, so that people can intuitively and vividly understand each technical feature and the overall technical solution of the utility model, but it cannot be understood as a limitation on the protection scope of the utility model.

Referring to Figure 1, an array-type dual Micro SD card mobile storage device according to an embodiment of the utility model includes: a PCB printed circuit board 3, a main circuit board, which is used to connect and support various electronic components and parts; the outer surface of the PCB printed circuit board 3 is detachably connected to a shell 1, an external protective shell, which is used to wrap and protect the internal electronic components and parts; the shell 1 covers the PCB printed circuit board 3, a RAID chip 4 and a Micro SD card holder 5; the upper surface of the PCB printed circuit board 3 is fixedly connected to the RAID chip 4, a chip for data management; the upper and lower surfaces of the PCB printed circuit board 3 are fixedly connected to the Micro SD card holder 5, a slot for inserting a Micro SD card 6, which is usually connected to the PCB printed circuit board 3 and is used to expand the storage capacity of the device; the inner wall of the Micro SD card holder 5 is detachably connected to the Micro SD card 6, which is usually inserted into the Micro SD card holder 5 and is used to store and transmit data; the outer surface of the PCB printed circuit board 3 is fixedly connected to a USB interface 2, a universal data transmission interface, which is used to connect an external device or storage device to a computer or other device.

The outer surface of the shell 1 is provided with a through opening, the position of the through opening is opposite to the position of the Micro SD card holder 5, the inner wall of the through opening is movably connected to the Micro SD card 6, the inner wall of the shell 1 is fitted with the outer surface of the USB interface 2, the upper surface of the Micro SD card holder 5 is fitted with the inner wall of the shell 1, the upper surface of the RAID chip 4 is fitted with the inner wall of the shell 1, the outer surface of the shell 1 is provided with a fixing opening, the inner wall of the fixing opening is abutted against the USB interface 2, the position of the Micro SD card holder 5 is opposite to the position of the RAID chip 4, and the position of the RAID chip 4 is opposite to the position of the USB interface 2.

Working principle: PCB printed circuit board 3 is installed in housing 1, USB interface 2 is installed at one end of PCB printed circuit board 3, two Micro SD card holders 5 are installed at the other end of PCB printed circuit board 3, mode switching switch, disk array RAID chip 4 and SD card bridge control chip and related components are also installed on PCB printed circuit board 3, all components are electrically connected through PCB printed circuit board 3, two Micro SD cards 6 of the same capacity are inserted into Micro SD card holder 5 to form an array-type dual Micro SD card mobile storage device, the mode switching switch is turned to the appropriate gear, and one of the three uses of multiple disk slots, high speed and reliability is selected, and it can be inserted into computers and other devices compatible with USB interface 2 storage devices for data storage and exchange.

The embodiments of the present invention are described in detail above in conjunction with the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made within the knowledge scope of ordinary technicians in the relevant technical field without departing from the purpose of the present invention.

Claims (7)

1. An array type double Micro SD card mobile storage device, which is characterized in that the device comprises:

PCB printed wiring board (3), the upper surface fixedly connected with RAID chip (4) of PCB printed wiring board (3), the equal fixedly connected with Micro SD cassette (5) of upper surface and lower surface of PCB printed wiring board (3), micro SD cassette (6) are connected with in the inner wall detachable of Micro SD cassette (5), the surface fixedly connected with USB interface (2) of PCB printed wiring board (3).

2. The array type double Micro SD card mobile storage device according to claim 1, wherein a shell (1) is detachably connected to the outer surface of the PCB printed circuit board (3), and the shell (1) covers the PCB printed circuit board (3), the RAID chip (4) and the Micro SD card seat (5).

3. The array type double Micro SD card mobile storage device according to claim 2, wherein a through hole is formed in the outer surface of the shell (1), and the through hole is opposite to the Micro SD card seat (5).

4. The array type double Micro SD card mobile storage device according to claim 3, wherein the inner wall of the through hole is movably connected with the Micro SD card (6), and the inner wall of the shell (1) is attached to the outer surface of the USB interface (2).

5. The array type double Micro SD card mobile storage device according to claim 1, wherein the upper surface of the Micro SD card seat (5) is attached to the inner wall of the housing (1), and the upper surface of the RAID chip (4) is attached to the inner wall of the housing (1).

6. The array type double Micro SD card mobile storage device according to claim 2, wherein a fixed port is arranged on the outer surface of the shell (1), and the inner wall of the fixed port is abutted to the USB interface (2).

7. The array type dual Micro SD card mobile storage device according to claim 1, wherein the Micro SD card seat (5) is located opposite to the RAID chip (4), and the RAID chip (4) is located opposite to the USB interface (2).