CN204129647U - A kind of USB interface, plug and terminal device - Google Patents
A kind of USB interface, plug and terminal device Download PDFInfo
- Publication number
- CN204129647U CN204129647U CN201420338324.1U CN201420338324U CN204129647U CN 204129647 U CN204129647 U CN 204129647U CN 201420338324 U CN201420338324 U CN 201420338324U CN 204129647 U CN204129647 U CN 204129647U
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- usb interface
- usb
- contact component
- plug
- inner support
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Abstract
The utility model is about a kind of USB interface, plug and terminal device, relates to computer hardware accessory field.Wherein the technical scheme of USB interface comprises elastic conduction mechanism, be connected with the input end of USB interface power control circuit, and contact with the contact component of USB plug or disconnect, to send the signal opening or closing USB interface power supply to described power-supply controller of electric.The technical scheme of USB plug comprises the contact component being provided with and matching with the elastic conduction mechanism of USB interface.Also comprise the terminal device that have employed this USB interface in addition.Compared with prior art, the utility model, by the power supply control to USB interface power supply, makes the use of USB interface more safe and reliable.
Description
Technical field
The utility model relates to computer hardware accessory field, particularly relates to a kind of USB interface, plug and terminal device.
Background technology
Along with popularizing of computing machine, computing machine is widely used in the field such as Industry Control, office.Current, computing machine all has USB interface, and we can pass through USB movable storage device, like a cork by store in computing machine file, archives, data copy is in USB device.The particularly development of recent jumbo USB mobile device, portable hard drive, more exacerbate the secret of computing machine or network internal, sensitive information be illegally copied to outside may.In order to reduce this risk by USB interface bootlegging, great majority are all by amendment group policy/registration table in the industry at present, or under control windows, the software of driving aspect prevents the Wise property of company or confidentiality data from wrecking or stealing.Although this kind of software also can be accomplished to control USB interface, reduce the function of bootlegging, software easily suffers virus attack and easily by the shortcoming of removal, makes this kind of software fundamentally cannot protect the safety in utilization of USB interface.
Utility model content
In view of this, the utility model provides a kind of USB interface, plug and terminal device, and fundamental purpose is by the power supply control to USB interface power supply, makes the use of USB interface more safe and reliable.
For achieving the above object, the utility model mainly provides following technical scheme:
On the one hand, embodiment of the present utility model provides a kind of USB interface, this interface is formed primarily of metal shell, insulation inner support, conductive pin, USB interface power control circuit and elastic conduction mechanism, wherein metal shell ground connection, insulation inner support is fixed in described metal shell, the front end of conductive pin is inserted in described insulation inner support, also comprises: USB interface power control circuit, elastic conduction mechanism; The contact component place outside surface of described insulation inner support corresponding to USB plug is provided with a groove, described elastic conduction organization establishes is in described groove, be connected with the input end of USB interface power control circuit, and contact with the contact component of USB plug or disconnect, to send the signal opening or closing USB interface power supply to described power-supply controller of electric.
Aforesaid USB interface, its groove and described conductive pin are separately positioned on two of the inner support that insulate not on ipsilateral.
On the other hand, embodiment of the present utility model provides a kind of USB plug, this plug is by pcb board, form for the insulation shell and the metal cap be socketed on described insulation shell carrying pcb board, wherein pcb board is distributed with golden finger, insulation shell is divided into again Handheld Division and connecting portion, metal cap is arranged around connecting portion, contact with the metal shell of USB interface when accessing USB port, described metal cap inside surface is provided with the contact component matched with the elastic conduction mechanism of USB interface, and this contact component conducts electricity with metal cap and is connected.
Aforesaid USB plug, described contact component is contact, projection or the elastic mechanism of conduction.
Aforesaid USB plug, described elastic mechanism is sheet metal.
On the other hand, embodiment of the present utility model provides a kind of terminal device, and this equipment is furnished with described USB interface.
By technique scheme, the utility model a kind of USB interface, plug and terminal device at least have following advantages:
By connection or the disconnection of USB interface and plug, send the signal opening or closing USB interface power supply to USB power source controller, and then realize the power supply control to all USB interface, make the use of USB interface more safe and reliable, and the program is convenient to use, cheap for manufacturing cost.
Above-mentioned explanation is only the general introduction of technical solutions of the utility model, in order to better understand technological means of the present utility model, and can be implemented according to the content of instructions, coordinates accompanying drawing to be described in detail as follows below with preferred embodiment of the present utility model.
Accompanying drawing explanation
Fig. 1 is USB interface power control circuit;
Fig. 2 is a kind of USB interface structural drawing that embodiment of the present utility model provides;
Fig. 3 is USB interface front view (FV);
Fig. 4 is a kind of USB plug structural drawing that embodiment of the present utility model provides;
Fig. 5 is USB plug front view (FV).
Embodiment
For further setting forth the utility model for the technological means reaching predetermined utility model object and take and effect, below in conjunction with accompanying drawing and preferred embodiment, to according to the embodiment of the utility model application, structure, feature and effect thereof, be described in detail as follows.In the following description, the not necessarily same embodiment that different " embodiment " or " embodiment " refers to.In addition, special characteristic, structure or feature in one or more embodiment can be combined by any suitable form.
Embodiment of the present utility model provides a kind of USB interface power control circuit, and as shown in Figure 1, this circuit is primarily of the first resistance R1, the second resistance R2, the 3rd resistance R3, triode Q, form with door part AND; Wherein one end of the first resistance R1 is connected with the power supply VCC3 of usb control circuit, and the other end is connected with the input end USB_EN of usb control circuit; One end of second resistance R2 is connected with the input end USB_EN of described usb control circuit, and the other end is connected with three grades of base stage B held; The collector E ground connection of triode, emitter C is with one end of the 3rd resistance R3 and be connected with the input end of door part Q; The other end of the 3rd resistance R3 is connected with the power supply VCC3 of usb control circuit; Be connected with the input end EN of USB interface power-supply controller of electric U with the output terminal of door part Q.
When the input end USB_EN of usb control circuit does not have input signal, the base stage B of triode is noble potential, emitter C and collector E disconnects, be noble potential with the input end of door part Q, be that motherboard power supply signal is also for noble potential with another input end of door part Q, then with the output terminal of door part Q, namely the input end EN of USB interface power-supply controller of electric U is noble potential.
When the input end USB_EN of usb control circuit has input signal, the base stage B of triode is electronegative potential, emitter C and collector E conducting, be electronegative potential with the input end of door part Q, be that motherboard power supply signal is also for noble potential with another input end of door part Q, then with the output terminal of door part Q, namely the input end EN of USB interface power-supply controller of electric U is electronegative potential.
Embodiment of the present utility model provides a kind of USB interface, as Fig. 2, shown in 3, this interface is primarily of metal shell 11, insulation inner support 12, conductive pin 13, USB interface power control circuit and elastic conduction mechanism 134 are formed, the inner support 12 that wherein insulate is fixed in described metal shell 11, the front end of conductive pin 13 is inserted in described insulation inner support 12, contact component 25 place outside surface of insulation inner support 12 corresponding to USB plug is provided with a groove 14, elastic conduction mechanism 134 is just arranged in this groove 14, be connected with the input end of USB interface power control circuit, and contact with the contact component of USB plug or disconnect, to send the signal opening or closing USB interface power supply to described power-supply controller of electric.
Wherein, should be connected with the input end of USB interface power control circuit, and contact with the contact component of USB plug or disconnect, so that to described power-supply controller of electric send the signal that opens or closes USB interface power supply concrete be: the input end USB_EN of usb control circuit is connected with the elastic conduction mechanism 134 of USB interface, when USB plug access USB interface, the elastic conduction mechanism 134 of USB interface contacts conducting with the contact component 25 of USB plug, because contact component 25 is connected with the metal shell 11 of USB interface together with metal cap 23, and metal shell 11 is grounding connection, the then input end USB_EN ground connection of usb control circuit, thus cause the base stage B of triode Q to become electronegative potential from noble potential, the emitter C of triode Q and collector E conducting, thus become electronegative potential with the input end of door part Q from noble potential, the input end EN of USB interface power-supply controller of electric U is finally caused to become electronegative potential from noble potential, the circuit that USB interface power-supply controller of electric U powers to USB is opened, power to all USB interface.In like manner, when USB plug and USB interface disconnect, the elastic conduction mechanism 134 of USB interface contacts with the contact component 25 of USB plug and disconnects, the input end USB_EN of usb control circuit becomes noble potential from electronegative potential, namely the base stage B of triode Q becomes noble potential from electronegative potential, emitter C and the collector E of triode Q disconnect, thus become noble potential with the input end of door part Q from electronegative potential, the input end EN of USB interface power-supply controller of electric U is caused to become noble potential from electronegative potential, the circuit that USB interface power-supply controller of electric U powers to USB is closed, all USB interface are unavailable.
Further, the elastic conduction mechanism 134 arranged in this USB interface is metal clips, and its material can be iron plate, copper sheet or other electrical conductivity alloies are made, and concrete the utility model embodiment does not limit this.
Embodiment of the present utility model provides a kind of USB plug, as shown in Figure 4,5, this plug is by pcb board 21, form for the insulation shell 22 and the metal cap 23 be socketed on described insulation shell 22 carrying pcb board, wherein pcb board 21 is distributed with golden finger 24, insulation shell 22 is divided into again Handheld Division 221 and connecting portion 222, metal cap 23 is arranged around connecting portion 222, and is provided with the contact component 25 matched with the elastic conduction mechanism 134 of USB interface at metal cap 23 inside surface.
Further, the contact component 25 that the metal cap inside surface of this USB plug is arranged be conduct electricity contact, projection or elastic mechanism.Wherein, it should be noted that, when this contact component is elastic mechanism, the USB plug with this kind of structure can be inserted in generic USB interface, as Universal USB plug.
Further, the contact component 25 of this USB plug is when adopting elastic mechanism, and this contact component is sheet metal.
On the other hand, embodiment of the present utility model provides a kind of terminal device, and this equipment is furnished with above-mentioned USB interface.This terminal device can be the electronic equipments such as computer, TV, multimedia player, and concrete the utility model embodiment does not limit this, and any needs all belong to the utility model protection scope with the terminal device of USB interface.
In the present embodiment, by the contact of the contact component 25 in USB plug with the elastic conduction mechanism 134 of described USB interface, the power supply state of all USB interface can be controlled, the service condition of USB interface is controlled from hardware, solve and subject to virus attack by software control USB port and easily by the shortcoming of removal, make the use of USB port more safe and reliable.
The above, it is only preferred embodiment of the present utility model, not any pro forma restriction is done to the utility model, the any simple modification done above embodiment according to technical spirit of the present utility model, equivalent variations and modification, all still belong in the scope of technical solutions of the utility model.
Claims (6)
1. a USB interface, comprise: metal shell, insulation inner support, conductive pin, described metal shell ground connection, described insulation inner support is fixed in described metal shell, the front end of described conductive pin is inserted in described insulation inner support, it is characterized in that, also comprise: power control circuit, elastic conduction mechanism;
The contact component place outside surface of described insulation inner support corresponding to USB plug is provided with a groove;
Described elastic conduction organization establishes, in described groove, is connected with the input end of USB interface power control circuit, and contacts with the contact component of USB plug or disconnect, to send the signal opening or closing USB interface power supply to described power-supply controller of electric.
2. USB interface according to claim 1, is characterized in that, described groove and described conductive pin are separately positioned on two of the inner support that insulate not on ipsilateral.
3. a USB plug, comprise pcb board, for the insulation shell that carries pcb board and the metal cap be socketed on described insulation shell, described insulation shell is divided into Handheld Division and connecting portion, metal cap is arranged around described connecting portion, contact with the metal shell of USB interface when accessing USB port, described pcb board is distributed with golden finger; It is characterized in that, described metal cap inside surface is provided with the contact component matched with the elastic conduction mechanism of USB interface, and described contact component conducts electricity with metal cap and is connected.
4. USB plug according to claim 3, is characterized in that, described contact component is contact, projection or the elastic mechanism of conduction.
5. USB plug according to claim 4, is characterized in that, described elastic mechanism is sheet metal.
6. a terminal device, is characterized in that, comprising: USB interface as claimed in claim 1 or 2.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420338324.1U CN204129647U (en) | 2014-06-23 | 2014-06-23 | A kind of USB interface, plug and terminal device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420338324.1U CN204129647U (en) | 2014-06-23 | 2014-06-23 | A kind of USB interface, plug and terminal device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204129647U true CN204129647U (en) | 2015-01-28 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420338324.1U Active CN204129647U (en) | 2014-06-23 | 2014-06-23 | A kind of USB interface, plug and terminal device |
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| CN (1) | CN204129647U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106529351A (en) * | 2016-12-05 | 2017-03-22 | 陈丹丹 | USB external structure designing method, computer and secure network system with virus defense capability |
-
2014
- 2014-06-23 CN CN201420338324.1U patent/CN204129647U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106529351A (en) * | 2016-12-05 | 2017-03-22 | 陈丹丹 | USB external structure designing method, computer and secure network system with virus defense capability |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |