CN206411662U - The data transmission circuit and multi-interface data line of a kind of multiplex roles - Google Patents
The data transmission circuit and multi-interface data line of a kind of multiplex roles Download PDFInfo
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- CN206411662U CN206411662U CN201621283907.4U CN201621283907U CN206411662U CN 206411662 U CN206411662 U CN 206411662U CN 201621283907 U CN201621283907 U CN 201621283907U CN 206411662 U CN206411662 U CN 206411662U
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- 230000005540 biological transmission Effects 0.000 title claims abstract description 34
- 230000002159 abnormal effect Effects 0.000 abstract description 10
- 208000033999 Device damage Diseases 0.000 abstract description 4
- 230000006378 damage Effects 0.000 description 7
- 239000003990 capacitor Substances 0.000 description 4
- 238000005516 engineering process Methods 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 1
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Abstract
The utility model is related to the data transmission circuit and multi-interface data line of a kind of multiplex roles, and the circuit includes input interface, main control unit, control piece, several output interfaces and switch element, the input interface, its input data or power supply；The control piece, its input select signal；The selection signal of the main control unit, its input data for receiving the input interface or power supply and control piece, output control signal applies conducting and cut-off that voltage controls several switch elements；The output interface, it is connected with the switch element, when connected switching elements conductive, and output data or power supply carry out data transmission or charged for external electrical product.The utility model is selected to disconnect abnormal output module by control piece, cuts off the passage of transmission or the charging of the data of other interfaces, reduce to data wire and the device damage of data output when occurring abnormal, user-friendly.
Description
Technical field
The utility model is related to data transmission circuit, more specifically refers to a kind of data transmission circuit of multiplex roles and many
Interface data wire.
Background technology
Present data wire all has the function of charging and data transfer concurrently, still, and the interface correspondence on each data wire connects
The receiving port connect is all unique, but because charging inlet/data transmission interface of various electronic products is not fully unified,
The data wire of single interface is caused to may not apply to various electronic products, therefore in the market occurs in that the data wire of multiplex roles.
But, the data wire of the multiplex roles of in the market, it is impossible to carry out the selection and cut-out of the interface of data wire, power supply or
Data transfer causes abnormal conditions, to the serious of data wire to charging inlet/data transmission interface of underproof electronic product
Damage, in addition make paired data output equipment cause serious damage, it is inconvenient for use, if directly disconnection input source also can be right
Data wire and data output apparatus cause to damage.
Therefore, it is necessary to design a kind of data transmission circuit of multiplex roles, the interface of autonomous selection output is realized, it is cut off
The passage of transmission or the charging of the data of his interface, in abnormal cases, is reduced to data wire and the equipment of data output
Damage, also allow for user and use.
Utility model content
The purpose of this utility model be to overcome the defect of prior art there is provided a kind of data transmission circuit of multiplex roles and
Multi-interface data line.
To achieve the above object, the utility model uses following technical scheme：A kind of data transmission circuit of multiplex roles, its
It is characterised by, including input interface, main control unit, control piece, several output interfaces and switch element, the input connects
Mouthful, its input data or power supply；The control piece, its input select signal；The main control unit, it receives the input and connect
The input data of mouth or the selection signal of power supply and control piece, output control signal apply voltage and control several to switch
The conducting and cut-off of element；The output interface, it is connected with the switch element, when connected switching elements conductive
When, output data or power supply carry out data transmission or charged for external electrical product.
Its further technical scheme is：The main control unit includes main control chip U1, the switch element and the master control
Chip U1 output end pin connection, the control piece is connected with the input pin of the main control chip U1.
Its further technical scheme is：The control piece includes button S1, the button S1 and main control chip U1 input
Hold pin connection.
Its further technical scheme is：The switch element is triode Q21, Q3, described triode Q21, Q3 base stage
It is connected, described triode Q21, Q3 emitter stage are connected with the output interface, leads to the output end pin of the main control chip U1
Main control chip U1 output end pin output control signal is crossed, the base stage to triode Q21, Q3 applies the voltage control triode
Q21, Q3 conducting and cut-off.
Its further technical scheme is：Also it is parallel between described triode Q21, Q3 emitter stage and the output interface
Light emitting diode D2, D1 of ground connection.
The utility model additionally provides multi-interface data line, includes a kind of data transmission circuit, even of above-mentioned multiplex roles
Connect and pcb board, a kind of data transfer of multiplex roles are provided with box, DOL Data Output Line and Data In-Line, the connection box
Circuit is integrated on the pcb board, and the DOL Data Output Line is connected with the output interface, the Data In-Line with it is described defeated
Incoming interface is connected.
Its further technical scheme is：The number of the DOL Data Output Line is several, and each or described in several
DOL Data Output Line is connected with an input interface.
Its further technical scheme is：The button S1 is arranged on the side of the connection box.
Its further technical scheme is：The connection box is provided with several through holes, described light emitting diode D2, D1 and institute
State through hole alignment.
Its further technical scheme is：It is described connection box include upper lid and drain pan, the upper lid be provided with through hole, it is described on
Enclose to form cavity volume between lid and drain pan, the pcb board is embedded in the cavity volume.
The beneficial effect of the utility model compared with prior art is：A kind of data transfer of multiplex roles of the present utility model
Circuit, by manipulating control piece, switches the conducting and cut-off of the switch element of each output interface connection, is being charged or counted
During according to transmission, main control unit meeting output control signal applies voltage to switch element, realizes conducting and cut-off to switch element
Control, when occurring abnormal, it may not be necessary to disconnect input interface, it is only necessary to pass through control piece selection and disconnect abnormal output
The switch element of interface, so as to disconnect harm in time, the interface of autonomous selection output, cut off the data of other interfaces transmission or
The passage of person's charging, reduces to data wire and the device damage of data output, also allows for user and use.
The utility model is further described with specific embodiment below in conjunction with the accompanying drawings.
Brief description of the drawings
A kind of structured flowchart of the data transmission circuit for multiplex roles that Fig. 1 provides for the utility model specific embodiment；
A kind of circuit theory diagrams of the data transmission circuit for multiplex roles that Fig. 2 provides for the utility model specific embodiment；
The dimensional structure diagram for the multi-interface data line that Fig. 3 provides for the utility model specific embodiment；
The configuration schematic diagram for the multi-interface data line that Fig. 4 provides for the utility model specific embodiment.
Embodiment
In order to more fully understand technology contents of the present utility model, with reference to specific embodiment to skill of the present utility model
Art scheme is further described and illustrated, but is not limited to this.
A kind of specific embodiment as shown in figures 1-4, the data transmission circuit for multiplex roles that the present embodiment is provided, can be with
Be used in electronic product is charged or data transfer during, realize and the charging inlet of electronic product/data passed
Defeated interface is verified, while the interface of output can also be selected independently, cuts off the transmission or charging of the data of other interfaces
Passage, reduce to data wire and the device damage of data output, also allow for user and use.
A kind of data transmission circuit of multiplex roles, including input interface 2, main control unit 1, control piece 3, several outputs connect
Mouth 4 and switch element 5, the input interface 2, its input data or power supply；The control piece 3, its input select signal；
The selection signal of the main control unit 1, its input data for receiving the input interface 2 or power supply and control piece 3, output
Control signal, applies conducting and cut-off that voltage controls several output interfaces 4；The output interface 4, itself and the switch are first
Part 5 is connected, when connected switch element 5 is turned on, output data or power supply, and data biography is carried out for external electrical product
Defeated or charging.
Powered products or data transfer source connection input interface 2, by power supply or data transfer to main control unit 1, simultaneously
Charge prepd or data reception source connection output interface 4, certainly, in the output interface 4 of artificial selection conducting, control piece 3
Input select signal, main control unit 1 is led according to the selection signal output control signal of input to the output interface 4 of selection
Logical, non-selected output interface 4 is ended, and is being charged or during data transfer, main control unit 1 understands output control signal,
Voltage is applied to output interface 4, the control of the conducting and cut-off to output interface 4 is realized, realizes autonomous selection, can reach certainly
The charging interval of main control product and the time of data receiver, when occurring abnormal, it may not be necessary to disconnect input interface 2,
Only need to select to disconnect abnormal output interface 4 by control piece 3, so as to disconnect harm in time.
In the present embodiment, main control unit 1 includes main control chip U1, and the switch element 5 is with the main control chip U1's
Output end pin is connected, and the control piece is connected with the input pin of the main control chip U1..
In addition, in the present embodiment, the vdd terminal pin of the main control chip U1 is connected with filter capacitor C2, to main control chip
U1 electric current is filtered processing.
Further, control piece 3 is connected including button S1, the button S1 with main control chip U1 input pin.Often
A button S1 is pressed, then switches the conducting of output interface 4.
In the present embodiment, button S1 number is 1, and now S1 has the function of switching, certainly, in other implementations
Example, above-mentioned button S1 number can be several, and the number can be consistent with the number of output interface 4, each output
Interface 4 and a button S1 Corresponding matching, so, the function that button S1 is only opened or closed.
Specifically, switch element 5 is triode Q21, Q3, described triode Q21, Q3 base stage and main control chip U1's is defeated
Go out to hold pin to connect, triode Q21, Q3 emitter stage are connected with the output interface, it is defeated by main control chip U1 output end pin
Go out control signal, the base stage to triode Q21, Q3 applies conducting and cut-off that voltage controls described triode Q21, Q3.
In addition, described triode Q21, Q3 model FM3205.Certainly, in other embodiment, the triode Q21,
Q3 model can also be other models, depending on concrete foundation actual conditions.
Further, luminous the two of ground connection are also parallel between triode Q21, Q3 emitter stage and the output interface
Pole pipe D2, D1.Light emitting diode D2, D1 are to play a part of prompting, inform which output interface 4 of people is to lead
It is logical, what which output interface 4 was off, consequently facilitating the use of user.
Further, a kind of data transmission circuit of multiplex roles also includes power supply module, the positive pole of the power supply module
Filter capacitor C1 is also parallel between the vdd terminal pin of the main control chip U1, the filter action of input current is played.
Meanwhile, filter capacitor C3, C5 are also parallel between triode Q21, Q3 and the power supply module, input current is played
Filter action.
In addition, being parallel with filter capacitor C6, C8 between triode Q21, Q3 and output interface, the filtering of input current is played
Effect.
Above-mentioned light emitting diode D1, D2 can be replaced using other luminescent devices such as light emitting transistors, it is not limited to
Above-mentioned light emitting diode D1, D2.
A kind of data transmission circuit of above-mentioned multiplex roles, by manipulating control piece 3, switches each output interface 4 and connects
Switch element 5 conducting and cut-off, charged or during data transfer, main control unit 1 can output control signal, to switch
Element 5 applies voltage, realizes the control of the conducting and cut-off to switch element 5, when occurring abnormal, it may not be necessary to disconnect defeated
Incoming interface 2, it is only necessary to select to disconnect the switch element 5 of abnormal output interface 4 by control piece 3, so that harm is disconnected in time,
The interface of autonomous selection output, cuts off the passage of transmission or the charging of the data of other interfaces, reduces to data wire and number
According to the device damage of output, also allow for user and use.
Furthermore it is possible to which the program by being implanted into certification in main control chip U1, recognizes the product that output interface 4 is connected
Card.
The present embodiment also proposed multi-interface data line, include data transmission circuit, the connection of a kind of above-mentioned multiplex roles
Pcb board, a kind of number of multiplex roles are provided with box 10, DOL Data Output Line 30 and Data In-Line 40, the connection box 10
It is integrated according to transmission circuit on the pcb board, the DOL Data Output Line 30 is connected with the output interface, the Data In-Line
40 are connected with the input interface 2.
Specifically, the number of DOL Data Output Line 30 is several, and each or several described DOL Data Output Lines 30 with
One input interface 2 is connected.So, several DOL Data Output Lines 30 can be controlled to be operated simultaneously.
The button S1 is arranged on the side of the connection box 10, in use, user passes through button press S1, switching input
Signal, realizes the conducting and cut-off of output interface 4.
Connect box 10 and be provided with several through holes 20, light emitting diode D2, D1 and the alignment of through hole 20.User is led to
The luminous situation that through hole 20 sees light emitting diode D2, D1 is crossed, the situation of the conducting and cut-off of output interface 4 is learnt, is easy to use
Family is used.
In addition, the connection box 10 includes upper lid 11 and drain pan 12, the upper lid 11 is provided with through hole 20, the upper lid 11
Enclose to form cavity volume between drain pan 12, the pcb board is embedded in the cavity volume.
The side wall of the drain pan 12 is provided with slot 14, and the lower surface of the upper lid 11 is provided with card article 13, the card article 13
It is fastened in the slot 14, realizes the assembly and disassembly for being easy to connect box 10.
In addition, several Data In-Lines 40 the inner connected by contiguous block 31, several Data In-Lines 40 it is interior
End is provided with connecting pole 32, and connecting pole 32 extends to the outer end of the contiguous block 31, and is plugged in the input interface.
Further, the multi-interface data line also includes metal-back 60, and the connection box 10 is embedded in metal-back 60
Outside, so, 60 pairs of connection boxes 10 of metal-back play a part of protection.
In the present embodiment, the length of the connection box 10 is 35mm to 45mm, and the length of Data In-Line 40 is 35mm
To 45mm, the length of DOL Data Output Line 30 is 150mm to 250mm, and the thickness of connection box 10 is 7mm to 9mm, so, whole many
The small volume of interface data wire, is easy to carry.
It is above-mentioned that technology contents of the present utility model are only further illustrated with embodiment, in order to which reader is easier to understand,
But embodiment of the present utility model is not represented and is only limitted to this, and any technology done according to the utility model extends or recreated,
By protection of the present utility model.Protection domain of the present utility model is defined by claims.
Claims (10)
1. a kind of data transmission circuit of multiplex roles, it is characterised in that including input interface, main control unit, control piece, several
Output interface and switch element, the input interface, its input data or power supply；The control piece, it inputs selection letter
Number；The selection signal of the main control unit, its input data for receiving the input interface or power supply and control piece, output
Control signal, applies conducting and cut-off that voltage controls several switch elements；The output interface, itself and the switch element
Connection, when connected switching elements conductive, output data or power supply, carry out data transmission for external electrical product or
Charging.
2. the data transmission circuit of a kind of multiplex roles according to claim 1, it is characterised in that the main control unit includes
Main control chip U1, the switch element is connected with the output end pin of the main control chip U1, the control piece and the master control core
Piece U1 input pin connection.
3. the data transmission circuit of a kind of multiplex roles according to claim 2, it is characterised in that the control piece includes pressing
Button S1, the button S1 are connected with main control chip U1 input pin.
4. the data transmission circuit of a kind of multiplex roles according to claim 3, it is characterised in that the switch element is three
Pole pipe Q21, Q3, described triode Q21, Q3 base stage is connected with the output end pin of the main control chip U1, the triode
Q21, Q3 emitter stage are connected with the output interface, by main control chip U1 output end pin output control signal, to three poles
Pipe Q21, Q3 base stage apply the conducting and cut-off that voltage controls described triode Q21, Q3.
5. the data transmission circuit of a kind of multiplex roles according to claim 4, it is characterised in that described triode Q21, Q3
Emitter stage and the output interface between be also parallel with light emitting diode D2, D1 of ground connection.
6. multi-interface data line, it is characterised in that the data transmission circuit including a kind of multiplex roles described in claim 5, company
Connect and pcb board, a kind of data transfer of multiplex roles are provided with box, DOL Data Output Line and Data In-Line, the connection box
Circuit is integrated on the pcb board, and the DOL Data Output Line is connected with the output interface, the Data In-Line with it is described defeated
Incoming interface is connected.
7. multi-interface data line according to claim 6, it is characterised in that the number of the DOL Data Output Line is some
Individual and each or several described DOL Data Output Lines are connected with an input interface.
8. multi-interface data line according to claim 7, it is characterised in that the button S1 is arranged on the connection box
Side.
9. multi-interface data line according to claim 8, it is characterised in that the connection box is provided with several through holes,
Described light emitting diode D2, D1 and the through hole alignment.
10. multi-interface data line according to claim 9, it is characterised in that the connection box includes upper lid and drain pan, institute
Lid is stated provided with through hole, encloses to form cavity volume between the upper lid and drain pan, the pcb board is embedded in the cavity volume.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621283907.4U CN206411662U (en) | 2016-11-25 | 2016-11-25 | The data transmission circuit and multi-interface data line of a kind of multiplex roles |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621283907.4U CN206411662U (en) | 2016-11-25 | 2016-11-25 | The data transmission circuit and multi-interface data line of a kind of multiplex roles |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206411662U true CN206411662U (en) | 2017-08-15 |
Family
ID=59549444
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621283907.4U Expired - Fee Related CN206411662U (en) | 2016-11-25 | 2016-11-25 | The data transmission circuit and multi-interface data line of a kind of multiplex roles |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206411662U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111624377A (en) * | 2020-05-26 | 2020-09-04 | 中国人民解放军国防科技大学 | System and control method for remotely controlling test power supply and signal |
| CN112199311A (en) * | 2020-09-25 | 2021-01-08 | 深圳市诚芯微科技有限公司 | Multi-channel power supply and data transmission switching circuit and data line |
-
2016
- 2016-11-25 CN CN201621283907.4U patent/CN206411662U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111624377A (en) * | 2020-05-26 | 2020-09-04 | 中国人民解放军国防科技大学 | System and control method for remotely controlling test power supply and signal |
| CN112199311A (en) * | 2020-09-25 | 2021-01-08 | 深圳市诚芯微科技有限公司 | Multi-channel power supply and data transmission switching circuit and data line |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170815 |
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| CF01 | Termination of patent right due to non-payment of annual fee |