CN202585961U - USB hub with data removing key - Google Patents
USB hub with data removing key Download PDFInfo
- Publication number
- CN202585961U CN202585961U CN 201220218428 CN201220218428U CN202585961U CN 202585961 U CN202585961 U CN 202585961U CN 201220218428 CN201220218428 CN 201220218428 CN 201220218428 U CN201220218428 U CN 201220218428U CN 202585961 U CN202585961 U CN 202585961U
- Authority
- CN
- China
- Prior art keywords
- usb
- switch
- hub
- key
- data
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
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- Details Of Connecting Devices For Male And Female Coupling (AREA)
Abstract
The utility model relates to a USB hub with a data removing key. The USB hub comprises a hub (1). A USB port (12) of the hub (1) is provided with a USB removing command module (2) which includes a switch key (3) and a signal control circuit (11). when an external-connection USB device on a PC is needed to be removed, only the data removing key (3) is needed to be pressed, and the signal control circuit (11) sends out a data removing control signal to a processor (4), and as a result, data transmission between the PC and the external-connection USB device can be cut off, avoiding damage on the USB device and data loss caused by wrong removal of the USB device, enabling more convenient plugging-in/pulling-out processes of the external-connection USB device, and therefore the USB hub has a broad market prospect.
Description
Technical field
The utility model relates to usb hub, particularly a kind ofly has a usb hub that data remove key.
Background technology
When removing circumscribed USB equipment now, need click USB through PC and remove the USB device that we need remove that removes that order just can safety from PC.But increase along with service time and frequency; Removing like this can cause a lot of inconvenience to the user; Cause the user to lose patience and directly from the USB socket of PC, directly remove USB device; Often so directly remove losing of the damage that can cause USB device and data, therefore having the usb hub that data remove key is the product that market is badly in need of.
Summary of the invention
Remove existing defective of circumscribed USB equipment and problem in order to solve in the prior art from PC, the utility model provides a kind of simple in structure, easy to use, usb hub that can remove data fast.
For the technical scheme that solves the problems of the technologies described above the utility model is: a kind ofly have a usb hub that data remove key, comprise hub, it is characterized in that: the USB port of said hub is provided with USB and removes instruction module.
Said USB removes instruction module and has comprised switch key and signal control circuit.
Said switch key is arranged on the hub surface.
Said signal control circuit is made up of switch, divider resistance one, divider resistance two, current-limiting resistance, electric capacity.
Said switch links to each other with switch key.
Said electric capacity links to each other with ground with switch.
Said divider resistance one links to each other with switch with reference power source.
Said divider resistance two links to each other with ground with switch.
Said current-limiting resistance links to each other with the processor of switch with circumscribed USB equipment.
When said button was closed, one, two pairs of reference voltages of divider resistance carried out dividing potential drop and send data to processor removing control signal.
But the noise that said electric capacity filtering switch produces.
The beneficial effect of the utility model is: be provided with data through traditional usb hub and remove key; Remove the transfer of data that key can cut off PC and circumscribed USB equipment as long as press data; Avoid pulling out USB device and cause the damage of USB device and losing of data because of mistake; This usb hub brings great convenience for people's work, life, has application space widely.
Description of drawings
To be that the utility model is a kind of have a structural representation that data remove the usb hub of key to Fig. 1.
Fig. 2 is the signal control circuit figure that the said USB of the utility model removes instruction module.
Among the figure: 1, hub, 2, USB removes instruction module, 3, switch key, 4, the processor of circumscribed USB equipment; 5, switch, 6, divider resistance one, 7, divider resistance two, 8, current-limiting resistance; 9, electric capacity, 10, reference power source, 11, signal control circuit, 12, USB port.
Specific embodiment
Like Fig. 1, shown in 2; A kind ofly have a usb hub that data remove key, comprise hub 1, the USB port 12 of hub 1 is provided with USB and removes instruction module 2; Said USB removes instruction module 2 and has comprised switch key 3 and signal control circuit 11, and switch key 3 is arranged on hub 1 surface.
Said signal control circuit 11 is made up of switch 5, divider resistance 1, divider resistance 27, current-limiting resistance 8, electric capacity 9; Switch 5 links to each other with switch key 3; Electric capacity 9 links to each other with ground with switch 5, and divider resistance 1 links to each other with switch 5 with reference power source 10, and current-limiting resistance 8 links to each other with the processor 4 of switch 5 and circumscribed USB equipment; Divider resistance 27 links to each other with ground with switch 5, and current-limiting resistance 8 links to each other with the processor 4 of switch 5 and circumscribed USB equipment.
When needs remove the circumscribed USB equipment on the PC; Remove button 3 as long as press data; Signal control circuit 11 sends data to processor 4 and removes control signal; Can cut off the transfer of data of PC and circumscribed USB equipment, avoid pulling out USB device and cause the damage of USB device and losing of data because of mistake.
The above; Be merely the preferable embodiment of this practicality; But the utility model protection range is not limited thereto, and is equal to replacement or changes according to the technical scheme of the utility model and inventive concept thereof, all should be encompassed within the protection range of the utility model.
Claims (2)
1. one kind has the usb hub that data remove key, comprises hub (1), it is characterized in that: the USB port (12) of said hub (1) is provided with USB and removes instruction module (2).
2. usb hub according to claim 1 is characterized in that: said USB removes instruction module (2) and has comprised switch key (3) and signal control circuit (11).
3, usb hub according to claim 2 is characterized in that: said switch key (3) is arranged on hub (1) surface.
4, usb hub according to claim 2 is characterized in that: said signal control circuit (11) is made up of switch (5), divider resistance one (6), divider resistance two (7), current-limiting resistance (8), electric capacity (9).
5, usb hub according to claim 4 is characterized in that: said switch (5) links to each other with switch key (3).
6, usb hub according to claim 4 is characterized in that: said electric capacity (9) links to each other with ground with switch (5).
7, usb hub according to claim 4 is characterized in that: said divider resistance one (6) links to each other with switch (5) with reference power source (10).
8, usb hub according to claim 4 is characterized in that: said divider resistance two (7) links to each other with ground with switch (5).
9, usb hub according to claim 4 is characterized in that: said current-limiting resistance (8) links to each other with the processor (4) of switch (5) and circumscribed USB equipment.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220218428 CN202585961U (en) | 2012-05-16 | 2012-05-16 | USB hub with data removing key |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220218428 CN202585961U (en) | 2012-05-16 | 2012-05-16 | USB hub with data removing key |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202585961U true CN202585961U (en) | 2012-12-05 |
Family
ID=47255333
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220218428 Expired - Fee Related CN202585961U (en) | 2012-05-16 | 2012-05-16 | USB hub with data removing key |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202585961U (en) |
-
2012
- 2012-05-16 CN CN 201220218428 patent/CN202585961U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121205 Termination date: 20130516 |