CN205376925U - USB plug, signal switch circuit and USB data line - Google Patents
USB plug, signal switch circuit and USB data line Download PDFInfo
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- CN205376925U CN205376925U CN201521141643.4U CN201521141643U CN205376925U CN 205376925 U CN205376925 U CN 205376925U CN 201521141643 U CN201521141643 U CN 201521141643U CN 205376925 U CN205376925 U CN 205376925U
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Abstract
The utility model discloses a USB plug, signal switch circuit and USB data line, the USB plug includes: switch module and plug pin, it includes to switch the module: power switching module and signal switching module, the plug pin includes the same front pin of structure and reverse side pin, when when the plug pin is connected with female seat, power switching module is used for switching on the front pin or the power signal transmission route of reverse side pin, signal switching module is used for switching on the front pin or the data signaling route of reverse side pin. Implement the beneficial effects of the utility model are that, when inserting female seat, just inserting with reverse plug all can, need not to distinguish the positive and negative, convenience of customers's use, the misconnection can be avoided appearing and the short circuit problem of bringing is touched.
Description
Technical field
This utility model relates to USB technical field, more particularly, it relates to a kind of USB plug, signal switching circuit and USB data line.
Background technology
USB is the english abbreviation of USB (universal serial bus), is the bus architecture of Intel Company's exploitation so that adds serial device on computers and is very easy to.
Standard usb interface experienced by generation USB, second filial generation USB2.0 and third generation USB3.0.Every generation USB interface is subdivided into USBTypeA/B/C/Mini/Micro according to the feature of propped up holding equipment.
The Standard General of USBTypeA, suitable in PC PC, is be applied to interface standard the most widely.TypeA type plug is mainly used to connect main equipment, for instance, PC, notebook etc..
In prior art, the typeA type plug of the overwhelming majority is to discriminate between positive and negative.When with female seat grafting, it is necessary to keep being properly inserted direction.If plug is accidentally anti-inserted, then cannot be smoothly inserted into, it is necessary to re-start the action of grafting, thus bringing inconvenience to user.
Therefore, prior art existing defects, it is necessary to improve.
Utility model content
The technical problems to be solved in the utility model is in that, the above-mentioned USB plug for prior art needs to distinguish positive and negative, awkward defect, it is provided that a kind of USB plug, signal switching circuit and USB data line.
This utility model solves its technical problem and be the technical scheme is that
First aspect, it is provided that a kind of USB plug, including: handover module and plug pin；
Described handover module includes: power supply handover module and signal handover module；
Described plug pin includes the identical front pin of structure and reverse side pin；
Described power supply handover module is for turning on described front pin or the power signal transmissions path of described reverse side pin；
Described signal handover module is for turning on described front pin or the data signal transmission path of described reverse side pin.
In one embodiment, described plug also includes: circuit board；
Described front pin and described reverse side pin are respectively arranged at the two sides of one end of circuit board；
Described handover module is arranged on circuit board away from one end of described front pin and described reverse side pin；
Described front pin is identical with the structure of reverse side pin and about described circuit board symmetrically structure.
In one embodiment, described front is drawn and is all comprised power pins, data positive pole functional pin, data negative pole functional pin and grounding pin with described reverse side pin.
In one embodiment, described power supply handover module includes: metal-oxide-semiconductor Q1, audion Q2, resistance R2, resistance R3, resistance R4, metal-oxide-semiconductor Q3, audion Q4, resistance R5, resistance R6 and resistance R7；
Described signal handover module includes: high speed COMS bus exchange switch SW1 and resistance R1.
In one embodiment, described high speed COMS bus exchange switch SW1 includes: the first input pin, the second input pin, the 3rd input pin, the 4th input pin, selection input pin, output enable pin, the first bus data pin and the second bus data pin；
The power pins of described front pin is connected with the drain electrode of described metal-oxide-semiconductor Q1；The data positive pole functional pin of described front pin is connected with the first input pin of described high speed COMS bus exchange switch；The data negative pole functional pin of described front pin is connected with the second input pin of high speed COMS bus exchange switch；
The power pins of described reverse side pin is connected with the drain electrode of described metal-oxide-semiconductor Q3；The data positive pole functional pin of described reverse side pin is connected with the 3rd input pin of high speed COMS bus exchange switch；The data negative pole functional pin of described reverse side pin is connected with the 4th input pin of high speed COMS bus exchange switch.
In one embodiment, described USB plug also includes the coffret for being connected with external equipment；
Described coffret includes power pins, the first data pin, the second data pin and grounding pin；
The input pin that selects of described high speed COMS bus exchange switch is connected with the base stage of described audion Q4；The output of described high speed COMS bus exchange switch enables pin by resistance R1 ground connection；
The source electrode of described metal-oxide-semiconductor Q1 is connected with the power pins of described coffret；
The source electrode of described metal-oxide-semiconductor Q1 is also connected through the colelctor electrode of resistance R4 with described audion Q2；
The grounded emitter of described audion Q2, and be connected through the base stage of resistance R3 with described audion Q2；
One end of resistance R2 is connected with the base stage of described audion Q2, and the other end is connected with the power pins of described front pin；
The source electrode of described metal-oxide-semiconductor Q3 is connected with the power pins of described coffret；
The source electrode of described metal-oxide-semiconductor Q3 is also connected through the colelctor electrode of resistance R7 with described audion Q4；
The grounded emitter of described audion Q4, and be connected through the base stage of resistance R6 with described audion Q4；One end of resistance R5 is connected with the base stage of described audion Q4, and the other end is connected with the power pins of described reverse side pin；
First bus data pin of described high speed COMS bus exchange switch is connected with the first data pin of described coffret；Described second bus data pin is connected with the second data pin of described coffret；The grounding pin of described coffret is connected to ground.
In one embodiment, described USB plug also includes: be coated on the housing of described circuit board one end and support；
Described housing plug-in mounting is on the bracket；Described front pin and described reverse side pin are respectively exposed to the two sides of described housing；Described support offers groove；Described housing is held in described groove.
Second aspect, it is provided that a kind of USB data line, including USB plug described above.
The third aspect, it is provided that a kind of signal switching circuit, is applied to include the USB plug of plug pin, and described circuit includes: power supply handover module and signal handover module；
Described plug pin includes the identical front pin of structure and reverse side pin；
When described plug pin is connected with female seat, described power supply handover module is for turning on described front pin or the power signal transmissions path of described reverse side pin；
Described signal handover module is for turning on described front pin or the data signal transmission path of described reverse side pin.
In one embodiment, when described plug pin just inserts female seat, the path between power supply handover module and signal handover module conducting described front pin and coffret, to realize the transmission of power signal and data signal；
When described plug pin anti-plug enters female seat, power supply handover module and signal handover module turn on the path between described reverse side pin and coffret, to realize the transmission of power signal and data signal.
Implement USB plug of the present utility model, signal switching circuit and USB data line, have the advantages that when inserting female seat, just inserting and anti-plug, it is not necessary to distinguish positive and negative, user-friendly；Can avoid the occurrence of and contact the short circuit problem brought by mistake；Can improving the structural strength of inserted terminal, be effectively prevented from use producing fracture, its service life is longer.
Accompanying drawing explanation
Below in conjunction with drawings and Examples, the utility model is described in further detail, in accompanying drawing:
Fig. 1 is the structural representation of the signal switching circuit of this utility model embodiment；
Fig. 2 is the electrical block diagram of the power supply handover module of this utility model embodiment and signal handover module；
Fig. 3 is the hardware architecture diagram of the USB plug of this utility model embodiment；
Fig. 4 is the hardware architecture diagram of the USB plug of this utility model one embodiment；
Fig. 5 is the structure chart on circuit boards of the housing cladding in the USB plug shown in Fig. 4；
Fig. 6 is the structure chart of the housing in the USB plug shown in Fig. 4；
Fig. 7 is the structure chart of the support in the USB plug shown in Fig. 4.
Detailed description of the invention
In order to technical characteristic of the present utility model, purpose and effect are more clearly understood from, now comparison accompanying drawing describes detailed description of the invention of the present utility model in detail.
Structural representation referring to the signal switching circuit that Fig. 1 is this utility model embodiment.The signal switching circuit that this utility model is implemented is applied to support in the typeA type USB plug of positive anti-plug, for carrying out the switching of signal.
Referring to Fig. 1, the signal switching circuit of this utility model embodiment includes: power supply handover module 20 and signal handover module 30.Wherein, power supply handover module 20 is connected with signal handover module 30, plug pin 10 and coffret 40 respectively.Signal handover module 30 is connected with power supply handover module 20, plug pin 10 and coffret 40 respectively.
Should be understood that plug pin 10 includes front pin 11 and reverse side pin 12 in embodiment of the present utility model.Coffret 40 can be cable interface, and it is for being connected with other end equipment.Such as, plug pin 10 is to be connected for the female seat with computer end, then coffret 40 is for connecting with terminal unit (such as, mobile phone, MP3 etc. equipment).
When plug pin 10 is connected with female seat, power supply handover module 20 is for turning on the power signal transmissions path of front pin 11 or reverse side pin 12.
Signal handover module 30 is for turning on the data signal transmission path of front pin 11 or reverse side pin 12.
Concrete, when plug pin 10 just inserts female seat, power supply handover module 20 and signal handover module 30 turn on the path between front pin 11 and coffret 40, to realize the transmission of power signal (can be used for charging) and data signal.
When plug pin 10 anti-plug enters female seat, power supply handover module 20 and signal handover module 30 turn on the path between reverse side pin 12 and coffret 40, to realize the transmission of power signal and data signal.
Should be understood that and be alternatively when just inserting, the path of conducting reverse side pin 12 and coffret 40, during anti-plug, the path of conducting front pin 11 and coffret 40.
Thus, the signal switching circuit of this utility model embodiment can be that front is inserted or reverse side inserts according to pin, and according to different inserted modes, selects the path that conducting is different, so that just inserting and anti-plug can realize correct identification and signal transmission.
The signal switching circuit of this utility model embodiment makes USB plug when inserting female seat, is just inserting and anti-plug, it is not necessary to distinguish positive and negative, user-friendly.
Electrical block diagram referring to the power supply handover module that Fig. 2 is this utility model embodiment and signal handover module.Wherein, power supply handover module 20 includes: metal-oxide-semiconductor Q1, audion Q2, resistance R2, resistance R3, resistance R4, metal-oxide-semiconductor Q3, audion Q4, resistance R5, resistance R6 and resistance R7.
Signal switching mould 30 includes: high speed COMS bus exchange switch SW1 and resistance R1.In one embodiment, high speed COMS bus exchange switch SW1 includes 8 pins, is respectively as follows: the first input pin (HSD1+ pin), the second input pin (HSD1-pin), the 3rd input pin (HSD2+ pin), the 4th input pin (HSD2-pin), selects input pin (SEL pin), output to enable pin (OE pin), the first bus data pin (D+ pin) and the second bus data pin (D-pin).
Coffret 40 includes power pins, the first data pin, the second data pin and grounding pin.
In embodiment of the present utility model, front pin 11 is identical with the structure of reverse side pin 12, all includes: grounding pin, data positive pole functional pin, data negative pole functional pin and power pins.
Referring to Fig. 2, the power pins (VBUS1 pin) of front pin 11 is connected with the drain electrode of metal-oxide-semiconductor Q1.The data positive pole functional pin (D1+ pin) of front pin 11 is connected with the first input pin of high speed COMS bus exchange switch.The data negative pole functional pin (D1-pin) of front pin 11 is connected with second input pin (HSD1-pin) of high speed COMS bus exchange switch.
The power pins (VBUS2 pin) of reverse side pin 12 is connected with the drain electrode of metal-oxide-semiconductor Q3.The data positive pole functional pin (D2+ pin) of reverse side pin 12 is connected with the 3rd input pin (HSD2+ pin) of high speed COMS bus exchange switch.Reverse side pin 12 data negative pole functional pin (D2-pin) be connected with the 4th input pin (HSD2-pin) of high speed COMS bus exchange switch.
The selection input pin (SEL pin) of high speed COMS bus exchange switch is connected with the base stage of audion Q4.The output of high speed COMS bus exchange switch enables pin (OE pin) by resistance R1 ground connection.
The source electrode of metal-oxide-semiconductor Q1 is connected with the power pins of coffret 40.The source electrode of metal-oxide-semiconductor Q1 is also connected through the colelctor electrode of resistance R4 with audion Q2.
The grounded emitter of audion Q2, and be connected through the base stage of resistance R3 with audion Q2.One end of resistance R2 is connected with the base stage of audion Q2, and the other end is connected with the power pins (VBUS1 pin) of front pin 2.
The source electrode of metal-oxide-semiconductor Q3 is connected with the power pins of coffret 40.The source electrode of metal-oxide-semiconductor Q3 is also connected through the colelctor electrode of resistance R7 with audion Q4.
The grounded emitter of audion Q4, and be connected through the base stage of resistance R6 with audion Q4.One end of resistance R5 is connected with the base stage of audion Q4, and the other end is connected with the power pins (VBUS2 pin) of reverse side pin 12.
The first bus data pin (D+ pin) of high speed COMS bus exchange switch is connected with the first data pin of coffret 40.Second bus data pin (D-pin) is connected with the second data pin of coffret 40.The grounding pin of coffret 40 is connected to ground.
In embodiment of the present utility model, the bandwidth of high speed COMS bus exchange switch exceedes the most high bandwidth requirement of usb signal.The CE pin of high speed COMS bus exchange switch, for enabling pin, is constantly in ground state.
In one embodiment, supply voltage is 5V.
The operation principle of the signal switching circuit of this utility model embodiment is:
When just slotting i.e. use face is front pin 11: after plug pin is electrically connected with female seat, voltage dividing potential drop after resistance R2 and the R3 of series connection, audion Q2 conducting.The grid voltage of metal-oxide-semiconductor Q1 turns on close to 0V, metal-oxide-semiconductor Q1, and the voltage of VBUS1 accesses.Now, VBUS2 is in the rear-face contact metallic ground shell to female seat, and VBUS2 voltage is 0V, and the base voltage of audion Q4 is 0V, and audion Q4 disconnects, and metal-oxide-semiconductor Q3 grid voltage is determined by the voltage in the power pins of coffret 40.Due to, VBUS1 has been turned on, so the voltage of the power pins of coffret 40 is 5V, the grid voltage of metal-oxide-semiconductor Q3 is high, and metal-oxide-semiconductor Q3 ends, thus short circuit occurs in the power pins avoiding coffret 40.
In addition, owing to the base voltage of audion Q4 is 0V (when being low level), logic according to SWL pin, high speed COMS bus exchange switch switches over, so that the first bus data pin (D+ pin) is connected with the first input pin, the second bus data pin (D-pin) is made to be connected with the 3rd input pin, the i.e. path of conducting front pin 11, consistent with power supply switch logic, thus also having reached switching purpose, the signal (signal of D2+, D2-) of reverse side pin can be avoided now to receive female seat metallic ground shell simultaneously and causing short-circuit problem.
When namely anti-plug uses face to be reverse side pin 12: voltage dividing potential drop after resistance R5 and the R6 of series connection, audion Q4 turns on.The grid voltage of metal-oxide-semiconductor Q3 turns on close to 0V, metal-oxide-semiconductor Q3, and the voltage of VBUS2 accesses.Now, VBUS1 is in the rear-face contact metallic ground shell to female seat, and VBUS1 voltage is 0V, and the base voltage of audion Q2 is 0V, and audion Q2 disconnects, and metal-oxide-semiconductor Q1 grid voltage is determined by the voltage in the power pins of coffret 40.Due to, VBUS2 has been turned on, so the voltage of the power pins of coffret 40 is 5V, the grid voltage of metal-oxide-semiconductor Q1 is high, and metal-oxide-semiconductor Q1 ends, thus short circuit occurs in the power pins avoiding coffret 40.
In addition, owing to the base voltage of audion Q4 is high level, logic according to SWL pin, high speed COMS bus exchange switch switches over, so that the first bus data pin (D+ pin) is connected with the second input pin, the second bus data pin (D-pin) is made to be connected with the 4th input pin, namely the path of reverse side pin 12 is turned on, consistent with power supply switch logic, thus also having reached switching purpose, the signal (signal of D1+, D1-) of front pin can be avoided now to receive female seat metallic ground shell simultaneously and causing short-circuit problem.
In embodiment of the present utility model, audion Q2 and Q4 is NPN type, and base voltage is that height then turns on.And metal-oxide-semiconductor Q1 and Q3 is P type, grid voltage is low conducting.
High speed COMS bus exchange switch in an embodiment of the present utility model is High-Speed Double-Channel signal shift switch.The switch logic of the high speed COMS bus exchange switch of this utility model embodiment is: SEL pin is not connected with or for empty, OE pin is high level, then this high speed COMS bus exchange switch is in non-UNICOM state (disconnected)；SEL pin is low level, and OE pin is low level, then the D1+ pin of this high speed COMS bus exchange switch connects with the D+ pin of coffret, and D1-pin connects with the D-pin of coffret；SEL pin is high level, and OE pin is low level, then the D2+ pin of this high speed COMS bus exchange switch connects with the D+ pin of coffret, and D2-pin connects with the D-pin of coffret.
It should be understood that, in above-described embodiment of the present utility model, front pin and reverse side pin all include 4 pins, and when the number of pins of front pin and reverse side pin is more than 4, one or more groups metal-oxide-semiconductor, audion, resistance can be increased in power supply handover module, and select the high speed COMS bus exchange switch adapted can realize the support of the positive anti-plug to more than 4 pins.
Referring to Fig. 3, this utility model embodiment also provides for a kind of USB plug, for being connected with the female seat of equipment, to carry out the transmission of power signal and/or data signal.Concrete, the USB plug of this utility model embodiment includes: circuit board 1, and is arranged at the handover module 2 on circuit board 1 and plug pin 10.
Plug pin 10 includes front pin 11 and reverse side pin 12, for carrying out the transmission of usb signal.
Handover module 2, for the grafting direction according to pin portions, turns on corresponding signal transmission passage.Concrete, handover module 2 includes power supply handover module 20 and signal handover module 30.Power supply handover module 20 is for turning on the power signal transmissions path of front pin 11 or reverse side pin 12.Signal handover module 30 is for turning on the data signal transmission path of front pin 11 or reverse side pin 12.
Referring to Fig. 3, on hardware configuration, plug pin 10 includes the front pin 11 and the reverse side pin 12 that are arranged at the two sides of one end of circuit board.Handover module is arranged at the one end on circuit board 1 away from plug pin.
Referring to Fig. 3, front pin 11 is identical with the structure of reverse side pin 12, and both are about circuit board 1 symmetrically structure.In the present embodiment of the present utility model, front pin 11 and reverse side pin 12 all comprise power pins, data positive pole functional pin, data negative pole functional pin and grounding pin.
Should be understood that front pin 11 also can be designed according to different demands from the structure of reverse side pin 12, for instance, it is possible to increase the quantity of pin or reduce the quantity of pin.
In one embodiment, it is coated with wear-resisting metal level above front pin 11 and reverse side pin 12 pin, thus increasing its abrasion resistance.
Should be understood that in embodiment of the present utility model, front and back is relative.Such as, when front pin can be regarded as USB plug insertion female seat, face upward, then reverse side pin is face down.
Should be understood that Fig. 3 illustrate only the fractional hardware structure of USB plug, USB plug also includes the housing, the support that adapt etc. structure, not shown in Fig. 3.
When the USB plug of this utility model embodiment adopts above-described embodiment signal switching circuit to realize positive anti-plug, the switching of signal, its concrete circuit constitutes and principle is referring to above-described embodiment, does not repeat them here.
The USB plug of this utility model embodiment, when inserting female seat, is just being inserted and anti-plug, it is not necessary to distinguish positive and negative, user-friendly.
Referring to the hardware architecture diagram of the USB plug that Fig. 4 is this utility model one embodiment, it includes circuit board 1, front pin 11, reverse side pin 12, housing 4, support 5, shell 6 and display lamp 7.
Circuit board 1 is generally rectangular structure, and the two sides of its one end are respectively arranged with front pin 11 and reverse side pin 12, and circuit board 1 is provided with handover module (in Fig. 4 non-label) away from one end of front pin 11, reverse side pin 12.This front pin 11 is identical with the structure of reverse side pin 12, and both are about circuit board 1 symmetrically structure.In the present embodiment, front pin 11 and reverse side pin 12 all comprise grounding pin, data positive pole functional pin, data negative pole functional pin and power pins.In other embodiments of the present utility model, front pin 11 can be designed according to different demands from the structure of reverse side pin 12, for instance, increase or reduce the quantity of pin.
Referring to Fig. 4, Fig. 5 and Fig. 6, housing 4 is coated on one end of circuit board 1, and front pin 11 and reverse side pin 12 are respectively exposed to the two sides of housing 4, to realize the connection with female seat.This housing 4 includes enclosure body 41, mounting groove 42, spliced eye 43, slide connecting part 44, Access Division 45 and limiting section 46.Wherein, this enclosure body 41 substantially rectangular structure, in the present embodiment, enclosure body 41 includes the first enclosure body 411 and the second enclosure body 412 that structure is identical, this first enclosure body 411 and this second enclosure body 412 opposing circuit board 1 symmetrically structure.
This mounting groove 42 is opened in enclosure body 41, and the profile of one end that mounting groove 42 and circuit board 1 are provided with front pin 11 is suitable, and circuit board 1 is provided with one end of front pin 11 and is arranged in this mounting groove 42.This spliced eye 43 is for making front pin 11 and reverse side pin 12 can expose to the two sides of housing 4, and spliced eye 43 runs through on the two sides being opened in enclosure body 41.Spliced eye 43 is provided with multiple, and the aperture of multiple spliced eyes 43 is all identical, and front pin 11 is corresponding respectively with reverse side pin 12 to be plugged in multiple spliced eye 43.In the present embodiment, spliced eye 43 is provided with four, and front pin 11 is corresponding respectively with the grounding pin in reverse side pin 12, data positive pole functional pin, data negative pole functional pin and power pins is arranged in four spliced eyes 43.Preferably, front pin 11, reverse side pin 12 flush with the opening of spliced eye 43, namely the deep equality of the height of the contact site of front pin 11 and reverse side pin 12 and spliced eye 43.
This slide connecting part 44 projection, at the dual-side of enclosure body 41, adopts the structure of this slide connecting part 44, it is simple to be inserted in support 5 by housing 4.This Access Division 45 projection, in the front end in the grafting direction of enclosure body 41, adopts the structure of this Access Division 45, it is possible to housing 4 is firmly inserted in support 5.This limiting section 46 projection, at the end in the grafting direction of enclosure body 41, adopts the structure of this limiting section 46, it is possible to the restriction housing 4 installation site in support 5.
Referring to Fig. 4 and Fig. 7, support 5 is for improving the structural strength of the inserted terminal of USB plug.This support 5 includes Plug Division 51 and accommodation portion 52.Offering groove 511 on this support 5, housing 4 supports in this groove 511.In embodiment of the present utility model, groove 511 is extended to Plug Division 51 by accommodation portion 52 away from the end face of Plug Division 51.The two side of this groove 511 offers the sliding groove 512 suitable with slide connecting part 44, and slide connecting part 44 and sliding groove 512 support mutually.Adopt above-mentioned sliding groove 512 and the structure of slide connecting part 44, during assembling, by the sliding groove 512 in slide connecting part 44 alignment bracket 5 in housing 4, can be easy to be inserted in support 5 housing 4.In this embodiment, the both sides of the edge of Plug Division 51 are convexly equipped with extension 515, and enclosure body 41 dual-side supports mutually with extension 515 respectively.Housing 4 and support 5 form a flat surface when assembling.
In this embodiment, the medial wall of groove 511 offers the buckling groove 513 suitable with Access Division 45, and Access Division 45 and buckling groove 513 support mutually.Adopt the structure of above-mentioned buckling groove 513 and Access Division 45 so that housing 4 and support 5 can firmly carry out clamping.Preferably, groove 511 is positioned at the side inwall in accommodation portion 52 and has locating part 514, and locating part 514 and limiting section 46 support mutually.Adopting the structure of above-mentioned locating part 514 and limiting section 46, when assembling housing 4 with support 5, locating part 514 and limiting section 46 can limit the housing 4 installation site in support 5 when mutually supporting.
Shell 6 is sleeved on support 5 one end away from front pin 11, and this display lamp 7 connects on the circuit card 1.Shell 6 offers the lamp hole 61 that the light for display lamp 7 penetrates.Adopt said structure, when USB plug is connected with female seat, it is possible to be used for indicating connection status.
The USB plug of this embodiment of this utility model, owing to adopting the structure of front the pin 11 and reverse side pin 12 being arranged on circuit board 1 two sides, user can be easy to just to insert or described positive anti-plug USB plug to be plugged in female seat in the way of anti-plug, and connect reliable tight；Furthermore, the USB plug of this utility model embodiment adopts housing 4 to be inserted into the structure on support 5, it is possible to increase the structural strength of inserted terminal, is effectively prevented from use producing fracture, and its service life is longer.
Handover module in this embodiment of this utility model adopts the circuit structure of the handover module of above-described embodiment, to realize when plug is just being inserted or signal conversion during anti-plug.Do not repeat them here its circuit structure.
The USB plug of this utility model embodiment, when inserting female seat, is just being inserted and anti-plug, it is not necessary to distinguish positive and negative, user-friendly.
Accordingly, this utility model embodiment also provides for a kind of USB data line, including the USB plug described in any of the above-described embodiment.Thus, the USB data line of this utility model embodiment, when inserting female seat, just inserting and anti-plug, it is not necessary to distinguish positive and negative, user-friendly.
Above in conjunction with accompanying drawing, embodiment of the present utility model is described; but this utility model is not limited to above-mentioned detailed description of the invention; above-mentioned detailed description of the invention is merely schematic; rather than it is restrictive; those of ordinary skill in the art is under enlightenment of the present utility model; without departing under this utility model objective and scope of the claimed protection situation, it may also be made that a lot of form, these belong within protection of the present utility model.
Claims (10)
1. a USB plug, it is characterised in that including: handover module and plug pin；
Described handover module includes: power supply handover module and signal handover module；
Described plug pin includes the identical front pin of structure and reverse side pin；
Described power supply handover module is for turning on described front pin or the power signal transmissions path of described reverse side pin；
Described signal handover module is for turning on described front pin or the data signal transmission path of described reverse side pin.
2. USB plug according to claim 1, it is characterised in that described USB plug also includes: circuit board；
Described front pin and described reverse side pin are respectively arranged at the two sides of one end of circuit board；
Described handover module is arranged on circuit board away from one end of described front pin and described reverse side pin；
Described front pin is identical with the structure of reverse side pin and about described circuit board symmetrically structure.
3. the USB plug according to any one of claim 1 or 2, it is characterised in that described front is drawn and all comprised power pins, data positive pole functional pin, data negative pole functional pin and grounding pin with described reverse side pin.
4. USB plug according to claim 3, it is characterised in that described power supply handover module includes: metal-oxide-semiconductor Q1, audion Q2, resistance R2, resistance R3, resistance R4, metal-oxide-semiconductor Q3, audion Q4, resistance R5, resistance R6 and resistance R7；
Described signal handover module includes: high speed COMS bus exchange switch SW1 and resistance R1.
5. USB plug according to claim 4, it is characterized in that, described high speed COMS bus exchange switch SW1 includes: the first input pin, the second input pin, the 3rd input pin, the 4th input pin, selection input pin, output enable pin, the first bus data pin and the second bus data pin；
The power pins of described front pin is connected with the drain electrode of described metal-oxide-semiconductor Q1；The data positive pole functional pin of described front pin is connected with the first input pin of described high speed COMS bus exchange switch；The data negative pole functional pin of described front pin is connected with the second input pin of high speed COMS bus exchange switch；
The power pins of described reverse side pin is connected with the drain electrode of described metal-oxide-semiconductor Q3；The data positive pole functional pin of described reverse side pin is connected with the 3rd input pin of high speed COMS bus exchange switch；The data negative pole functional pin of described reverse side pin is connected with the 4th input pin of high speed COMS bus exchange switch.
6. USB plug according to claim 5, it is characterised in that described USB plug also includes the coffret for being connected with external equipment；
Described coffret includes power pins, the first data pin, the second data pin and grounding pin；
The input pin that selects of described high speed COMS bus exchange switch is connected with the base stage of described audion Q4；The output of described high speed COMS bus exchange switch enables pin by resistance R1 ground connection；
The source electrode of described metal-oxide-semiconductor Q1 is connected with the power pins of described coffret；
The source electrode of described metal-oxide-semiconductor Q1 is also connected through the colelctor electrode of resistance R4 with described audion Q2；
The grounded emitter of described audion Q2, and be connected through the base stage of resistance R3 with described audion Q2；
One end of resistance R2 is connected with the base stage of described audion Q2, and the other end is connected with the power pins of described front pin；
The source electrode of described metal-oxide-semiconductor Q3 is connected with the power pins of described coffret；
The source electrode of described metal-oxide-semiconductor Q3 is also connected through the colelctor electrode of resistance R7 with described audion Q4；
The grounded emitter of described audion Q4, and be connected through the base stage of resistance R6 with described audion Q4；One end of resistance R5 is connected with the base stage of described audion Q4, and the other end is connected with the power pins of described reverse side pin；
First bus data pin of described high speed COMS bus exchange switch is connected with the first data pin of described coffret；Described second bus data pin is connected with the second data pin of described coffret；The grounding pin of described coffret is connected to ground.
7. USB plug according to claim 2, it is characterised in that described USB plug also includes: be coated on the housing of described circuit board one end and support；
Described housing plug-in mounting is on the bracket；Described front pin and described reverse side pin are respectively exposed to the two sides of described housing；Described support offers groove；Described housing is held in described groove.
8. a USB data line, it is characterised in that include the USB plug described in any one of the claims 1-7.
9. a signal switching circuit, is applied to include the USB plug of plug pin, it is characterised in that described circuit includes: power supply handover module and signal handover module；
Described plug pin includes the identical front pin of structure and reverse side pin；
When described plug pin is connected with female seat, described power supply handover module is for turning on described front pin or the power signal transmissions path of described reverse side pin；
Described signal handover module is for turning on described front pin or the data signal transmission path of described reverse side pin.
10. signal switching circuit according to claim 9, it is characterized in that, when described plug pin just inserts female seat, the path between power supply handover module and signal handover module conducting described front pin and coffret, to realize the transmission of power signal and data signal；
When described plug pin anti-plug enters female seat, power supply handover module and signal handover module turn on the path between described reverse side pin and coffret, to realize the transmission of power signal and data signal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521141643.4U CN205376925U (en) | 2015-12-31 | 2015-12-31 | USB plug, signal switch circuit and USB data line |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521141643.4U CN205376925U (en) | 2015-12-31 | 2015-12-31 | USB plug, signal switch circuit and USB data line |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205376925U true CN205376925U (en) | 2016-07-06 |
Family
ID=56275928
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521141643.4U Withdrawn - After Issue CN205376925U (en) | 2015-12-31 | 2015-12-31 | USB plug, signal switch circuit and USB data line |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205376925U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105514716A (en) * | 2015-12-31 | 2016-04-20 | 深圳市鑫桐源科技有限公司 | USB plug, signal switching circuit and USB data line |
| CN111129891A (en) * | 2018-11-01 | 2020-05-08 | 华为终端有限公司 | Power supply connecting device |
-
2015
- 2015-12-31 CN CN201521141643.4U patent/CN205376925U/en not_active Withdrawn - After Issue
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105514716A (en) * | 2015-12-31 | 2016-04-20 | 深圳市鑫桐源科技有限公司 | USB plug, signal switching circuit and USB data line |
| CN105514716B (en) * | 2015-12-31 | 2018-02-13 | 深圳市鑫桐源科技有限公司 | USB plug, signal switching circuit and USB data line |
| CN111129891A (en) * | 2018-11-01 | 2020-05-08 | 华为终端有限公司 | Power supply connecting device |
| CN111129891B (en) * | 2018-11-01 | 2021-06-29 | 华为终端有限公司 | Power supply connecting device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20160706 Effective date of abandoning: 20180213 |
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| AV01 | Patent right actively abandoned |