CN204315231U - A kind of USB storage device for storing temporary file - Google Patents
A kind of USB storage device for storing temporary file Download PDFInfo
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- CN204315231U CN204315231U CN201420794522.9U CN201420794522U CN204315231U CN 204315231 U CN204315231 U CN 204315231U CN 201420794522 U CN201420794522 U CN 201420794522U CN 204315231 U CN204315231 U CN 204315231U
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- usb
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- memory
- temporary file
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Abstract
The utility model discloses a kind of USB storage device for storing temporary file of field of computer peripheral, comprise mainboard, and the USB interface, main control chip and the Flash memory chip that are positioned on described mainboard end face, be connected by USB connecting line between described USB interface with described main control chip, be connected by data line between described Flash memory chip with described main control chip; The end face of described mainboard also has some root memory slots, and have at least on a described memory bank and be plugged with memory bar, described in every root, memory bank is connected with described main control chip respectively by data line.After this USB storage device being used for storing temporary file and computing machine grafting, can prevent calculator memory from too much being taken, after computer run terminates, or this USB storage device is from after computing machine is pulled out, ensure in this USB storage device without data remanence, this USB storage device read or write speed being used for storing temporary file is fast, compatible good simultaneously, is pluggablely provided with on the computing machine of USB at any one.
Description
Technical field
The utility model relates to a kind of USB storage device for storing temporary file of field of computer peripheral.
Background technology
Often can produce in computer run process and run some temporary files, but for security consideration, these temporary files must by complete deletion after computer run terminates.If these files store in a hard disk, can be resumed easily after it is deleted, therefore current general way is stored in calculator memory by these temporary files, but due to the finite capacity of calculator memory, occupied too much after, can affect the travelling speed of whole computing machine, another problem is that these temporary files cannot store and call if the size of temporary file is greater than the residual capacity of internal memory.And increase the memory bank number quantitative limitation that calculator memory can be subject to for grafting memory bar on computer motherboard end face, and computing machine needs to close tester in power-down state, therefore can not deal with problems completely.Storage medium on traditional USB storage device such as USB flash disk only has FLASH storage chip, FLASH storage chip is the same with hard disk, cannot delete after computer run terminates and store superincumbent temporary file, the read or write speed of FLASH storage chip is also slow simultaneously, there is potential safety hazard, reduce the operational efficiency of computing machine.
Utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, a kind of USB storage device for storing temporary file is provided, after in its USB being plugged on computing machine, effectively can prevent the internal memory of computing machine because of the storage of temporary file is too much taken, and after computer run terminates, or it is from after the USB of computing machine is pulled out, ensure without data remanence, the speed that reads while write is fast, and compatible good, is pluggablely provided with on the computing machine of USB at any one.
A kind of technical scheme realizing above-mentioned purpose is: a kind of USB storage device for storing temporary file, comprise mainboard, and the USB interface, main control chip and the Flash memory chip that are positioned on described mainboard end face, be connected by USB connecting line between described USB interface with described main control chip, be connected by data line between described Flash memory chip with described main control chip;
The end face of described mainboard also has some root memory slots, and have at least on a described memory bank and be plugged with memory bar, described in every root, memory bank is connected with described main control chip respectively by data line.
Further, described main control chip is the MIPS chip all having 64 integration USB 3.0 controllers and DDR3 controller.
Further, described USB interface is USB3.0 interface.
Further, described memory bank is the DDR3 memory bank for grafting DDR3 memory bar.
Further, on memory bank described in every root, an all pluggable root volume is the memory bar of 16G, and the memory bar capacity summation of institute's grafting in some described slots is the capacity that computing machine can identify.
Have employed the technical scheme of a kind of USB storage device for storing temporary file of the present utility model, it comprises mainboard, and the USB interface, main control chip and the Flash memory chip that are positioned on described mainboard end face, be connected by USB connecting line between described USB interface with described main control chip, be all connected by data line between described Flash memory chip with described main control chip; Described mainboard end face also has some root memory slots, and have at least on a described memory bank and be plugged with memory bar, described in every root, memory bank is connected with described main control chip respectively by data line.Its technique effect is: after this USB storage device being used for storing temporary file and computing machine grafting, can prevent calculator memory from too much being taken, improve the operational efficiency of computing machine, after computer run terminates, or this USB storage device is from after computing machine is pulled out, and ensure without data remanence in this USB storage device, this USB storage device read or write speed being used for storing temporary file is fast simultaneously, compatible good, to be pluggablely provided with on the computing machine of USB at any one.
Accompanying drawing explanation
Fig. 1 is the electrical block diagram of a kind of USB storage device for storing temporary file of the utility model.
Embodiment
Refer to Fig. 1, inventor of the present utility model, in order to understand the technical solution of the utility model better, below by specific embodiment, and is described in detail by reference to the accompanying drawings:
Referring to Fig. 1, a kind of USB storage device for storing temporary file of the present utility model, comprising shell (not shown) and being positioned at the mainboard 1 of described shell.
USB interface 2 on the end face of mainboard 1, main control chip 3, Flash memory chip 4, and four memory banks 5 for grafting memory bar (not shown), wherein have at least on a root memory slot 5 and be inserted with memory bar.Be connected by USB connecting line between USB interface 2 with main control chip 3, be connected by data line between Flash memory chip 4 with described main control chip 3.Every root memory slot 5 is connected with main control chip 3 respectively by data line.
Wherein main control chip 4 is the MIPS chip all having 64 integration USB 3.0 controllers and DDR3 controller.Accordingly, the USB interface on mainboard 1 end face is USB3.0 interface.Memory bank 5 on mainboard 1 end face is the DDR3 memory bank for grafting DDR3 memory bar.In the present embodiment, on the every root memory slot 5 on mainboard 1 end face, an all pluggable root volume is the DDR3 memory bar of 16G.Certainly, in every root memory slot 5 on mainboard 1 end face, insertion capacity is that the DDR3 memory bar of the capacity such as 1G, 2G, 4G, 8G, 512M is also fine, as long as after a kind of USB storage device for storing temporary file of the present utility model and computing machine grafting, on four root memory slots 5, the total volume of the memory bar of grafting can allow computer recognizing, but the capacity that must ensure the every root memory bar be plugged on mainboard 1 is all the same.
In the present embodiment, Flash memory chip 4 only stores the file starting a kind of USB storage device for storing temporary file of the present utility model, with the use enabling computing machine identify a kind of USB storage device for storing temporary file of the present utility model.Therefore under the satisfied prerequisite storing the file required for starting, the capacity of Flash memory chip 4 is the smaller the better, as long as ensure that a kind of USB storage device for storing temporary file of the present utility model is by after USB interface 2 and the USB grafting of computing machine, computing machine can identify a kind of USB storage device for storing temporary file of the present utility model.
After in the USB that the USB interface 2 of a kind of USB storage device for storing temporary file of the present utility model is plugged on computing machine, computing machine is identified as standard USB storage device, similar USB flash disk, read-write operation can be carried out, read and write data stored in being stored in the memory bar that is plugged on memory bank 5, the amount of capacity of a kind of USB storage device for storing temporary file of the present utility model is determined by the size of the total volume of the memory bar be plugged on four root memory slots 5.Computing machine close or a kind of USB storage device for storing temporary file of the present utility model from after computing machine is pulled out, its information stored will be destroyed.A kind of USB storage device for storing temporary file of the present utility model is powered by USB interface 2.
Therefore a kind of USB storage device for storing temporary file of the present utility model can expand the storage space that Computer Storage needs temporary file and the data of destroying after computer circuit breaking, the internal memory of computing machine can be avoided too much to be taken, security is high, without data remanence after guarantee power-off, ensure the operational efficiency of computing machine.
Due to a kind of USB storage device for storing temporary file of the present utility model have employed can the USB3.0 interface of high-speed read-write and DDR3 memory bar, read-write operation mode is identical with USB flash disk, but its read or write speed postpones soon and not.Simultaneously because mainboard 1 is provided with Flash memory chip 4, therefore can be identified as USB flash disk, there is good compatibility.
Meanwhile, only have 8G compared to general calculator memory, a kind of USB storage device for storing temporary file of the present utility model provides the storage that the maximum 63G of reaching memory capacity carries out temporary file.
A kind of USB storage device for storing temporary file of the present utility model employs memory bank 5 and carrys out grafting memory bar and have good extendability, is different from traditional USB storage device.On memory bank 5, the memory bar of grafting adopts RAM storage chip as storage medium simultaneously, the data that RAM storage chip stores have volatibility, therefore after a kind of USB storage device power-off for storing temporary file of the present utility model, its data stored and temporary file can not be able to be recovered by thoroughly removing, and ensure that data security.
Those of ordinary skill in the art will be appreciated that, above embodiment is only used to the utility model is described, and be not used as restriction of the present utility model, as long as in spirit of the present utility model, all will drop in Claims scope of the present utility model the change of the above embodiment, modification.
Claims (5)
1. one kind for storing the USB storage device of temporary file, comprise mainboard, and the USB interface, main control chip and the Flash memory chip that are positioned on described mainboard end face, be connected by USB connecting line between described USB interface with described main control chip, described F lash storage chip is connected by data line with between described main control chip; It is characterized in that:
The end face of described mainboard also has some root memory slots, and have at least on a described memory bank and be plugged with memory bar, described in every root, memory bank is connected with described main control chip respectively by data line.
2. a kind of USB storage device for storing temporary file according to claim 1, is characterized in that: described main control chip is the MIPS chip all having 64 integration USB 3.0 controllers and DDR3 controller.
3. a kind of USB storage device for storing temporary file according to claim 2, is characterized in that: described USB interface is USB3.0 interface.
4. a kind of USB storage device for storing temporary file according to claim 2, is characterized in that: described memory bank is the DDR3 memory bank for grafting DDR3 memory bar.
5. a kind of USB storage device for storing temporary file according to claim 1, it is characterized in that: on memory bank described in every root, an all pluggable root volume is the memory bar of 16G, and the memory bar capacity summation of institute's grafting in some described slots is the capacity that computing machine can identify.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420794522.9U CN204315231U (en) | 2014-12-15 | 2014-12-15 | A kind of USB storage device for storing temporary file |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420794522.9U CN204315231U (en) | 2014-12-15 | 2014-12-15 | A kind of USB storage device for storing temporary file |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204315231U true CN204315231U (en) | 2015-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420794522.9U Expired - Fee Related CN204315231U (en) | 2014-12-15 | 2014-12-15 | A kind of USB storage device for storing temporary file |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204315231U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104952476A (en) * | 2015-07-08 | 2015-09-30 | 山东中孚信息产业股份有限公司 | Reliable mobile storage medium and implementing method |
| CN107492390A (en) * | 2017-08-18 | 2017-12-19 | 讯翱（上海）科技有限公司 | One kind is based on rsa encryption NVMe standard PCIe solid-state storage devices |
-
2014
- 2014-12-15 CN CN201420794522.9U patent/CN204315231U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104952476A (en) * | 2015-07-08 | 2015-09-30 | 山东中孚信息产业股份有限公司 | Reliable mobile storage medium and implementing method |
| CN107492390A (en) * | 2017-08-18 | 2017-12-19 | 讯翱（上海）科技有限公司 | One kind is based on rsa encryption NVMe standard PCIe solid-state storage devices |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150506 Termination date: 20171215 |