TW200947207A - Expansion card for external storage device - Google Patents

Abstract

An expansion card for external storage device comprises a circuit board, and an input terminal power socket, an output terminal socket, a transformer unit, an input terminal data transmission interface and an output terminal data transmission interface arranged on the circuit board. In the expansion card, the circuit board has a sheet-shaped fixing part for being inserted into the bus slot of a motherboard, so as to fix the expansion card without electrically connecting to the bus of the motherboard. In operation, the input terminal power socket is employed to receive the power of a power supply. The voltage of the power is converted and the voltage-converted power is transmitted to an external storage device via the output terminal power socket. Furthermore, the input terminal data transmission interface is employed to receive data from a storage device data transmission interface of the motherboard, and the received data is forwarded to the external storage device through the output terminal data transmission interface.

Description

200947207 IX. INSTRUCTIONS: TECHNICAL FIELD OF THE INVENTION The present invention relates to an expansion card, and more particularly to an expansion card for an external storage device. [Prior Art]

In the external interface of the computer, there is a slow printer interface (print ❹ port) 'There is also a faster USB 2.0 0. There are IEEE 1394 with speed up to 1 Gbps, and a speed card with up to 2.5 Gbps ( ExpressCard) interface. The most obvious difference between USB and IEEE 1394 is that the two are different in transmission rate. In the past, many people used IEEE1394 for transferring files because their k is 100 times faster than the USB 1.1 version. USB transfer rate is now only i2Mbps/s, only low-speed devices such as keyboard, mouse and microphone can be connected, while IEEE1394A can use 40OMbap/s, which can be used to connect high-speed devices such as digital cameras, scanners and information appliances. . Later, USB 2.0 was introduced. Although it has caught up with IEEE1394A, the traffic of IEEE1394B and IEEE1394C can be increased to ig. As for the ExpressCard, the original PCMCIA transmits data in the pci architecture (the earlier generation of 8-Bit PCMICA even went the ISA specification), and the continuation of the ExpressCard is completely changed to PCI Express and the legs 2. Linked to the system chipset. In the USB2.0 mode, the transmission speed can reach 480Mbps 'But in PCI Express mode, in Dual_Simpex mode 5 200947207, the transmission speed of 2.5 Gbps is reached, which is almost equivalent to the transmission specification of sm. The possibility of developing to 4 Gbps is not ruled out. IEEE1394 and ExpressCard are interfaces for integrating power and data, so that the relative external storage device does not need to consider the power supply problem in addition to receiving data access from the host. Having said that, it is still unknown whether 1394, Εχρ_(5) can be popularized and widely used by consumers. In order to provide high-speed and popular external storage devices, especially the fact that they do not support the cake dumping device, it must be considered how to transfer data from the host computer to the external storage device, and also consider the voltage attenuation. Problem to achieve support for external storage devices. In the prior art, the "Power Transfer Module" of the Republic of China Patent Bulletin No. M25〇212 has been tested to enable the storage device to obtain an appropriate voltage and access data. However, this is not the internal storage device (4) of the technical support, but not the external storage device. SUMMARY OF THE INVENTION The main object of the present invention is to provide an expansion card for an external storage device, which is mainly modified by a circuit board that can be fixed on the busbar slot without changing any of the original designs and structures. The power of the power supply and the transmission signals from the motherboard are transferred to the external storage device to support the external storage device. Based on the above purpose, the expansion card for external storage device of the present invention mainly comprises 200947207 having a circuit board, and an input power socket, an output power socket, a transformer unit, an input data transmission interface, and an output terminal disposed on the circuit board. Data transmission interface. In the expansion card, the chip-shaped fixing portion of the circuit board can be inserted into the bus bar slot of the motherboard, so that the expansion card is fixed, but is not electrically connected to the motherboard bus bar. In operation, the input power supply base is used to receive the power supply of the power supply, and after being transformed, the power supply is transmitted to the external storage device via the output power supply base, and the data transmission from the storage device of the motherboard is received through the input data transmission interface. The interface data is transferred to the external storage device via the output terminal data transmission interface. The gist of the present invention and the spirit of the present invention will be further understood from the following detailed description of the invention and the accompanying drawings. [Embodiment] Referring to the first drawing, the expansion card 5 for an external storage device of the present invention mainly comprises a circuit board 10, an input power supply base 12 disposed on the circuit board 1G, an output power supply socket 16, and a change. The pressure unit 14, the input data transmission interface 18, and the output data transmission interface 2G. Wherein, the edge of the circuit board 1Q is further provided with a sheet-shaped defeated portion, and the thickness and size of the sheet-shaped fixing portion 10a correspond to the busbar slot 26a on the motherboard 26 (as shown in the second figure). The sheet-like fixing portion 1A can be inserted therein. In short, in the design of the micro-change electric shell material, it is also under the original Chinese version of the motherboard. In order to enable the expansion card 5 of the present invention to be fixed on the computer casing 22, the present invention uses The expansion card 5 for the external storage device has the same as the general 200947207 expansion card (10) such as Xianke) Hansi to electric ageing required ~ 10a and inverted L· type fixed frame 1〇b (genuine 疋 疋 疋 ❹ 绿 green does not have _峨 _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ It can receive power from the power supply 24 (as shown in the second figure) and the transmission signal from the motherboard sinking, and transfer it to the cake touch device 32 to support the support of the external device. Specifically, how to implement the above functions. Referring to the second figure, there is a motherboard 26 and a power supply 24 in the computer casing 22. The power supply 24 can provide 12v and 5V power. The motherboard 26 has at least a busbar plug. The slot 26a and the storage device data transmission interface 26b. The above external storage The device 32 has at least a power input 32b and a data input terminal. The bus slot 26a can be AGP, PCI Express, PCI, ISA, EISA, LPC. The storage device data transmission interface 26b can be a micro-computer interface (sma 11) Computer System

Interface 'SCSI', a Fibre Channel Interface (FC), a Serial Storage Architecture (SSA), an Integrated Drive Electronics (IDE), and a Personal Computer Memory Card International Association ( Personal Computer Memory Card International Association (PCMCIA) interface, Serial ΑΤΑ (SATA), paraiiei ATA (PATA). When the expansion card 5 of the present invention is mounted, the sheet-like fixing portion 10a is aligned with the bus bar slot 26a on the main board 200947207 26, and the sheet-like fixing portion 1 〇a is inserted into the bus bar slot 26a, and then the L-shaped The screw holes (not shown) provided on the holder i〇b are aligned with the screw holes on the computer casing 22, and then the expansion card 5 is securely fastened to the computer casing 22 by screws. After the expansion card 5 is installed, it is necessary to connect all the cables to be connected. 〇

When the power cable is connected, as shown in the second figure, the first power cable 28a is electrically connected to the electric wire 24 and the input terminal 12, and the second power cable 28b is electrically connected to the external storage device. The power input terminal is connected to the output power socket 16. When connecting the data line, the first transmission mirror is electrically connected to the storage device data transmission interface of the motherboard 26 and the input data transmission interface μ, and is electrically connected to the external storage through the second transmission cable and the line 30b. Device 32 #数据输入端^ is different from the output data transmission interface. Wherein, the input data transmission interface 18 and the mountain end = the bait transmission interface 2G direct connection to the whistling terminal power socket I 〗 and the input "the power socket 16 is electrically connected indirectly via the transformer unit 14. After the completion of the lining connection" expansion The card 5 can be called to start operation. When the crying ^ operation, the expansion card 5 of the present invention uses the input power supply base 12 to receive the power supply and the transformer is transformed by the voltage transformer 14 The white ^ ° external rhyme miscellaneous 32 ' at the same time through the input data transmission interface 18 to the end of the storage device data transmission interface 26b data, and through the transmission (four) asset transmission interface 2_ listening to the storage device 32. The operating voltage 'transformer 70 14 can be adjusted according to the power requirement of the external storage device 32 9 200947207, and the voltage from the input power socket 12 is turned up or down, and the adjusted output is rotated through the wheel outlet power socket 16 Power is supplied to the external storage device 32. For example, after the power source is transmitted through the long-distance first power cable 28a, voltage loss is easily caused. Therefore, it is necessary to consider the voltage loss portion in advance, and slightly increase the voltage in advance so as to actually transmit the voltage. The voltage to the external storage device 32 is sufficient to activate the external storage device 32. When the length of the right-handed power thin wire 28a is 3 meters, the voltage attenuation may be 〇.6V (the resistance is 0.2 ohm). Therefore, the voltage transformation unit 14 needs to increase the voltage of the input terminal power supply 12 by 〇. 6V before outputting from the output power supply terminal 16 to the external storage device 32. By the detailed description of the preferred embodiment above, It is intended that the features and spirit of the invention may be more clearly described, and that the invention is not limited by the preferred embodiments disclosed herein. Instead, it is intended to cover various modifications and equivalent arrangements. In the scope of the patent application scope of the present invention. 200947207 [Circular Simple Description] Fig. 1 is a schematic view of an expansion card for an external storage device of the present invention. Fig. 2 is a diagram of the external storage device Schematic diagram of the expansion card. [Main component symbol description] 5 expansion card 10 circuit board l〇a chip-shaped fixing part 10b inverted L-shaped holder 12 input terminal power supply 14 transformer unit 16 output terminal Block 18 input data transmission interface 20 output data transmission interface 22 computer casing 24 power supply 26 motherboard 26a busbar slot 26b storage device data transmission interface 28a~28b power cable 200947207 30a~30b transmission cable 32 external Storage device 32a data input terminal 32b power input terminal

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Claims (1)

200947207 X. Patent application scope: An expansion card for an external storage device 'provides power to the external storage device and accesses the data stored therein' and can be fixed in a computer case on the motherboard a busbar slot having at least a storage device data transmission interface, the computer casing having at least one power supply, the expansion card comprising: ❹ ❹ - a circuit board, a fastening portion m, the sheet The thickness and the size of the fixing portion are corresponding to the bus bar slot inserted in the motherboard; the input power socket ' is disposed on the circuit board and can be electrically connected to the first power cable through a first power cable The power supply of the computer casing; an output power socket ' is disposed on the circuit board, and can be electrically connected to the external storage through a first power cable a power input terminal of the device; a transformer unit disposed on the circuit board and electrically connected to the input power socket and the transport to the power outlet, and according to the external冋 or lower the voltage from the input power socket, and output the adjusted power to the external storage device through the power supply socket; an input data transmission interface is placed on the circuit board And 13 200947207 a transmission rim line is electrically connected to the storage device data transmission interface of the motherboard; an output greedy transmission interface is disposed on the circuit board, and is electrically connected to the input end data The transmission interface is electrically connected to the input of the external storage device through a 1-transport cable. 2. The expansion card for an external storage device described in the patent application No. @固弟〗 wherein the sheet-shaped fixing portion does not have a conductive terminal, and the circuit board cannot be electrically connected via the bus bar slot To the board. 3. An expansion card for an external storage device as described in claim i, wherein the power supply can provide 12V and 5V power. 4. The expansion card for an external storage device according to claim 1, wherein the expansion card has an inverted holder, and the type of fixing frame is provided with a screw hole, and the expansion card is fixed When the busbar slot is reached, the screw hole is aligned with the screw hole provided on the computer case.