CN204808190U - Link termination - Google Patents
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- CN204808190U CN204808190U CN201520402554.4U CN201520402554U CN204808190U CN 204808190 U CN204808190 U CN 204808190U CN 201520402554 U CN201520402554 U CN 201520402554U CN 204808190 U CN204808190 U CN 204808190U
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Abstract
The utility model discloses a link termination relates to equipment power supply technical field, and main equipment passes through link termination and connects the slave unit, and when just using external power source to supply power as the slave unit, the electric current that can reduce external power source flows backward the risk of the equipment of becoming owner of. Link termination, including the connecting wire body, the connecting wire body includes: main equipment port, main equipment port includes the anodal pin of main device power, main device power negative pole pin, main equipment data pin and artificial load module, the anodal pin of main device power passes through the artificial load module connect in main device power negative pole pin, the slave unit port, the slave unit port includes slave unit data pin, main equipment data pin connection in slave unit data pin. The utility model discloses being connected between mainly used owner's equipment and the slave unit.
Description
Technical field
The utility model relates to equipment power supply technique field, particularly relates to a kind of connecting wire device.
Background technology
At present, increasing main equipment needs are external to carry out main equipment from equipment and transmits from the data between equipment, such as, computer is by USB (universal serial bus) (UniversalSerialBus, USB) interface connects portable hard drive, or, computer connects external CD-ROM drive etc., for from equipment, if its power is lower, then can directly by main equipment for power from equipment, but for power higher from equipment, if main equipment cannot for providing enough large electric current from equipment, then need to use external power source for powering from equipment, when using external power source for powering from equipment, because main equipment still keeps being connected with from the supply lines between equipment, therefore the electric current that there is external power source pours in down a chimney the risk into main equipment.
Utility model content
In view of this, the utility model embodiment provides a kind of connecting wire device, and main equipment is connected from equipment by connecting wire device, and when using external power source for powering from equipment, the electric current that can reduce external power source pours in down a chimney the risk into main equipment.
For achieving the above object, the utility model mainly provides following technical scheme:
There is provided a kind of connecting wire device, comprise connecting line body, described connecting line body comprises:
Main equipment port, described main equipment port comprises main equipment positive source pin, main equipment power cathode pin, main equipment data pins and fictitious load module, and described main equipment positive source pin passes through described fictitious load model calling in described main equipment power cathode pin;
From device port, describedly comprise from device data pin from device port, described main equipment data pins is connected to described from device data pin.
Particularly, described fictitious load module is resistance.
Particularly, described main equipment positive source pin is connected to described fictitious load module by the first switch;
Described main equipment power cathode pin is connected to described fictitious load module by second switch.
Alternatively, describedly also comprise from device power supply (DPS) positive pole pin with from device power supply (DPS) negative pole pin from device port;
Described connecting line body also comprises external power source port, described external power source port comprises external power source positive pole pin and external power source negative pole pin, describedly be connected to described external power source positive pole pin from device power supply (DPS) positive pole pin, be describedly connected to described external power source negative pole pin from device power supply (DPS) negative pole pin.
Particularly, be describedly connected to described external power source positive pole pin from device power supply (DPS) positive pole pin by the 3rd switch, be describedly connected to described external power source negative pole pin from device power supply (DPS) negative pole pin by the 4th switch.
Alternatively, above-mentioned connecting wire device, also comprises:
Transformer, described transformer comprises output head anode and negative pole of output end;
Describedly also comprise from device power supply (DPS) positive pole pin with from device power supply (DPS) negative pole pin from device port, the described output head anode being connected to described transformer from device power supply (DPS) positive pole pin, the described negative pole of output end being connected to described transformer from device power supply (DPS) negative pole pin.
Particularly, the described output head anode being connected to described transformer from device power supply (DPS) positive pole pin by the 3rd switch, the described negative pole of output end being connected to described transformer from device power supply (DPS) negative pole pin by the 4th switch.
Particularly, above-mentioned connecting wire device, also comprises:
Switching controlling part, described switching controlling part is connected to the control end of described first switch, second switch, the 3rd switch and the 4th switch, and described switching controlling part is for controlling the conducting simultaneously of described first switch, the 3rd switch, the 3rd switch and the 4th switch or cut-off.
Particularly, described main equipment port and described from device port be USB (universal serial bus) port.
The connecting wire device that the utility model provides, being communicated with of main equipment and data-signal between equipment is realized by main equipment data pins with from device data pin, trigger main equipment by the fictitious load module be connected with main equipment port and transmit from the data between equipment, therefore can by external power source for power from equipment, because main equipment only has being communicated with of data circuit with between equipment, and there is no the connection of supply line, because the electric current this reducing external power source pours in down a chimney the risk into main equipment.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of a kind of connecting wire device in the utility model embodiment;
Fig. 2 is the structured flowchart of another kind of connecting wire device in the utility model embodiment;
Fig. 3 is the structured flowchart of another kind of connecting wire device in the utility model embodiment.
Embodiment
Below in conjunction with drawings and Examples, the utility model is described in further detail.
Most when being connected from equipment with main equipment, be all by main equipment and from the connecting line between equipment realize data transmit and main equipment to the power supply from equipment, its data transmission procedure is, when main equipment is by connecting line and from equipment connection, supply lines in connecting line and data line are all communicated with main equipment and from equipment, when main equipment by supply lines judge connecting line be connected to from equipment as load time, just can trigger main equipment and transmit from the data between equipment, for power higher from equipment, if main equipment cannot for providing enough large electric current from equipment, then need to use external power source for powering from equipment, when using external power source for powering from equipment, because main equipment still keeps being connected with from the supply lines between equipment, its data transmission procedure is identical, main equipment still need by supply lines judge connecting line be connected to from equipment as load time, just can trigger main equipment and transmit from the data between equipment, but the electric current that main equipment is provided by supply lines is less, and external power source for the electric current provided from equipment larger, therefore the electric current that there is external power source pours in down a chimney the risk into main equipment by supply lines.
As shown in Figure 1, the utility model embodiment provides a kind of connecting wire device, comprise connecting line body 1, connecting line body 1 comprises: main equipment port 2, main equipment port 2 comprises main equipment positive source pin Pin+, main equipment power cathode pin Pin-, main equipment data pins D1 and fictitious load module 3, and main equipment positive source pin Pin+ is connected to main equipment power cathode pin Pin-by fictitious load module 3; From device port 4, comprise from device port 4 and being connected to from device data pin D2 from device data pin D2, main equipment data pins D1.
Wherein, main equipment port 2 is for connecting main equipment, and main equipment can be computer etc., from device port 4 for connecting from equipment, can be portable hard drive, external drive etc. from equipment.Be connected to main equipment data pins D1 and from being data circuit between device data pin D2, being communicated with of data-signal is realized with from equipment by data line to make main equipment, in addition, main equipment port 2 also comprises main equipment positive source pin Pin+ and main equipment power cathode pin Pin-, when main equipment port 2 connects main equipment, main equipment positive source pin Pin+ is communicated with main equipment power cathode pin Pin-by fictitious load module 3, now by main equipment positive source pin Pin+ and main equipment power cathode pin Pin-, main equipment can judge that main equipment has been connected to from equipment, thus trigger main equipment and transmit from the data between equipment, now can realize power supply by external power source from equipment, because main equipment port 2 only has being communicated with of data circuit with between device port 4, the not connection of supply line, therefore the electric current that external power source provides can not be poured in down a chimney into main equipment by supply lines.
Connecting wire device in the present embodiment, being communicated with of main equipment and data-signal between equipment is realized by main equipment data pins with from device data pin, trigger main equipment by the fictitious load module be connected with main equipment port and transmit from the data between equipment, therefore can by external power source for power from equipment, because main equipment only has being communicated with of data circuit with between equipment, and there is no the connection of supply line, because the electric current this reducing external power source pours in down a chimney the risk into main equipment.
Particularly, fictitious load module 3 can be resistance, if can simulate a false load with identify by main equipment, the cost of resistance is lower.
Particularly, as shown in Figure 2, main equipment positive source pin Pin+ is connected to fictitious load module 3 by the first switch M1; Main equipment power cathode pin Pin-is connected to fictitious load module 3 by second switch M2.Connecting line body in the present embodiment, if after first main equipment port 2 being connected with main equipment, from device port 4 not with during from equipment connection, in order to avoid main equipment by fictitious load module 3 erroneous judgement main equipment with from equipment connection trigger data transmission, before main equipment to be connected by connecting line body with from equipment, control the first switch M1 and second switch M2 to end, when connecting line body 1 and main equipment with from after equipment all connects, control the first switch M1 and second switch M2 conducting again, thus make main equipment judge that connecting line body 1 has been connected to from equipment by fictitious load module 3, thus trigger main equipment and transmit from the data between equipment.
Except arranging corresponding power supply port from equipment to connect external power source, be outside the mode of powering from equipment to make external power source, can also connect from equipment and external power source by above-mentioned connecting wire device, particularly, can also comprise from device power supply (DPS) positive pole pin Pout+ with from device power supply (DPS) negative pole pin Pout-from device port 4, from device power supply (DPS) positive pole pin Pout+ with from device power supply (DPS) negative pole pin Pout-for being connected corresponding power pin from equipment; Connecting line body 1 also comprises external power source port 5, external power source port 5 comprises external power source positive pole pin Pw+ and external power source negative pole pin Pw-, external power source positive pole pin Pw+ is connected to from device power supply (DPS) positive pole pin Pout+, be connected to external power source negative pole pin Pw-from device power supply (DPS) negative pole pin Pout-, external power source positive pole pin Pw+ and external power source negative pole pin Pw-are for being connected corresponding power pin on external power source.External power source port 5 for connecting the external power source for powering from equipment, such as transformer.By arranging external power source port 5 on connecting wire device, make external power source can be connected to from equipment by connecting line body 1, thus without the need to arranging from equipment port of powering accordingly separately, only need by can realize from the same port on equipment from the data transmission between equipment and main equipment and external power source be power supply from equipment.
Particularly, be connected to external power source positive pole pin Pw+ from device power supply (DPS) positive pole pin Pout+ by the 3rd switch M3, be connected to external power source negative pole pin Pw-from device power supply (DPS) negative pole pin Pout-by the 4th switch M4.In order to avoid external power source when not being connected with main equipment from equipment directly for powering from equipment, therefore main equipment is being connected by connecting line body 1 and from before equipment, control the 3rd switch M3 and the 4th switch M4 ends, when connecting line body 1 and main equipment with from after equipment is all connected, control the 3rd switch M3 and the 4th switch M4 conducting again, external power source starts as powering from equipment.
Particularly, except arranging external power source port in addition and arranging at connecting line body 1 except the mode of external power source port 5 from equipment, as shown in Figure 3, can also make connecting line body 1 directly and external power source be connected to form the connecting wire device with power supply capacity, namely above-mentioned connecting wire device also comprises: transformer 6, and transformer 6 comprises output head anode V+ and negative pole of output end V-; Also comprise from device power supply (DPS) positive pole pin Pout+ with from device power supply (DPS) negative pole pin Pout-from device port 4, be connected to the output head anode V+ of transformer 6 from device power supply (DPS) positive pole pin Pout+, be connected to the negative pole of output end V-of transformer 6 from device power supply (DPS) negative pole pin Pout-.Transformer 6 also comprises input port, like this, make transformer 6 can be connected to from equipment by connecting line body 1, thus without the need to arranging from equipment port of powering accordingly separately, only need by realizing from the same port on equipment transmitting with the data of main equipment and the power supply of receiving transformer.
Particularly, be connected to the output head anode V+ of transformer 6 by the 3rd switch M3 from device power supply (DPS) positive pole pin Pout+, be connected to the negative pole of output end V-of transformer 6 from device power supply (DPS) negative pole pin Pout-by the 4th switch M4.In order to avoid transformer when not being connected with main equipment from equipment directly for powering from equipment, therefore main equipment is being connected by connecting line body 1 with before equipment, control the 3rd switch M3 and the 4th switch M4 ends, when connecting line body 1 and main equipment with from after equipment is all connected, control the 3rd switch M3 and the 4th switch M4 conducting again, transformer starts as powering from equipment.
Particularly, above-mentioned connecting wire device, also comprise: switching controlling part (not shown), this switching controlling part is connected to the control end of the first switch M1, second switch M2, the 3rd switch M3 and the 4th switch M4, and this switching controlling part is for controlling the first switch M1, the 3rd switch M2, the 3rd switch M3 and the 4th switch M4 conducting simultaneously or cut-off.At connecting wire device and main equipment with from before the connection of equipment, the first switch M1 is controlled by switching controlling part, second switch M2, 3rd switch M3 and the 4th switch M4 all ends, after main equipment to be connected by connecting wire device with from equipment, and external power source is also with after equipment connection, the first switch M1 is controlled by switching controlling part, second switch M2, 3rd switch M3 and the 4th switch M4 conducting simultaneously, now by fictitious load module 3, main equipment judges that connecting line body 1 has been connected to from equipment, thus trigger main equipment and transmit from the data between equipment, external power source starts as powering from equipment simultaneously.
Particularly, above-mentioned main equipment port 2 and be general-purpose serial bus USB port from device port 4, now, main equipment data pins D1 comprises d+ and d-two data pins in USB port, accordingly, also d+ and d-two data pins USB port are comprised from device data pin D2, main equipment positive source pin Pin+ is the power pin in USB port, main equipment power cathode pin Pin-is the ground pin in USB port, from the power pin that device power supply (DPS) positive pole pin Pout+ is USB port, from the ground pin that device power supply (DPS) negative pole pin Pout-is USB port.
Using method below by way of the connecting wire device illustrated in Fig. 3 is the connecting wire device that example illustrates in the present embodiment, first the first switch M1 is controlled by the switching controlling part on connecting wire device, second switch M2, 3rd switch M3 and the 4th switch M4 is all in cut-off state, then the main equipment port 2 in this connecting line main body 1 is connected with main equipment, by in this connecting line main body 1 from device port 4 with from equipment connection, the input end of transformer 6 is connected with 220V feeder ear, now, due to the first switch M1, second switch M2, 3rd switch M3 and the 4th switch M4 is all in cut-off state, therefore transformer 6 is unpromising powers from equipment, do not start working from equipment, main equipment does not transmit with data from equipment yet, the first switch M1 is controlled afterwards by the switching controlling part on connecting wire device, second switch M2, 3rd switch M3 and the 4th switch M4 conducting simultaneously, now by the fictitious load module 3 of connecting between main equipment positive source pin Pin+ and main equipment power cathode pin Pin-, main equipment judges that main equipment has been connected to from equipment, thus trigger main equipment and transmit from the data between equipment, simultaneously, external electric energy is converted to from the electric energy required for equipment by transformer 6, such as 5V, the electric energy of 3A, and this be main equipment cannot by USB port for providing from equipment, so just can by the normal work of driving from equipment, and main equipment also can to the transmission being carried out data-signal from equipment by the connection between corresponding data pins, because the power pin of main equipment is only communicated with fictitious load module 3, and be not really communicated with corresponding power pin from equipment, therefore transformer 6 can't pour in down a chimney into main equipment by corresponding supply line for the high-power power provided from equipment, thus the electric current reducing external power source pours in down a chimney the risk into main equipment.
Connecting wire device in the present embodiment, being communicated with of main equipment and data-signal between equipment is realized by main equipment data pins with from device data pin, trigger main equipment by the fictitious load module be connected with main equipment port and transmit from the data between equipment, therefore can by external power source for power from equipment, because main equipment only has being communicated with of data circuit with between equipment, and there is no the connection of supply line, because the electric current this reducing external power source pours in down a chimney the risk into main equipment.
The above; be only embodiment of the present utility model; but protection domain of the present utility model is not limited thereto; anyly be familiar with those skilled in the art in the technical scope that the utility model discloses; change can be expected easily or replace, all should be encompassed within protection domain of the present utility model.Therefore, protection domain of the present utility model should be as the criterion with the protection domain of described claim.
Claims (9)
1. a connecting wire device, is characterized in that, comprises connecting line body, and described connecting line body comprises:
Main equipment port, described main equipment port comprises main equipment positive source pin, main equipment power cathode pin, main equipment data pins and fictitious load module, and described main equipment positive source pin passes through described fictitious load model calling in described main equipment power cathode pin;
From device port, describedly comprise from device data pin from device port, described main equipment data pins is connected to described from device data pin.
2. connecting wire device according to claim 1, is characterized in that,
Described fictitious load module is resistance.
3. connecting wire device according to claim 2, is characterized in that,
Described main equipment positive source pin is connected to described fictitious load module by the first switch;
Described main equipment power cathode pin is connected to described fictitious load module by second switch.
4. connecting wire device according to claim 3, is characterized in that,
Describedly also comprise from device power supply (DPS) positive pole pin with from device power supply (DPS) negative pole pin from device port;
Described connecting line body also comprises external power source port, described external power source port comprises external power source positive pole pin and external power source negative pole pin, describedly be connected to described external power source positive pole pin from device power supply (DPS) positive pole pin, be describedly connected to described external power source negative pole pin from device power supply (DPS) negative pole pin.
5. connecting wire device according to claim 4, is characterized in that,
Describedly be connected to described external power source positive pole pin from device power supply (DPS) positive pole pin by the 3rd switch, be describedly connected to described external power source negative pole pin from device power supply (DPS) negative pole pin by the 4th switch.
6. connecting wire device according to claim 3, is characterized in that, also comprises:
Transformer, described transformer comprises output head anode and negative pole of output end;
Describedly also comprise from device power supply (DPS) positive pole pin with from device power supply (DPS) negative pole pin from device port, the described output head anode being connected to described transformer from device power supply (DPS) positive pole pin, the described negative pole of output end being connected to described transformer from device power supply (DPS) negative pole pin.
7. connecting wire device according to claim 6, is characterized in that,
The described output head anode being connected to described transformer from device power supply (DPS) positive pole pin by the 3rd switch, the described negative pole of output end being connected to described transformer from device power supply (DPS) negative pole pin by the 4th switch.
8. the connecting wire device according to claim 5 or 7, is characterized in that, also comprises:
Switching controlling part, described switching controlling part is connected to the control end of described first switch, second switch, the 3rd switch and the 4th switch, and described switching controlling part is for controlling the conducting simultaneously of described first switch, the 3rd switch, the 3rd switch and the 4th switch or cut-off.
9. connecting wire device according to claim 8, is characterized in that,
Described main equipment port and described from device port be USB (universal serial bus) port.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520402554.4U CN204808190U (en) | 2015-06-11 | 2015-06-11 | Link termination |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520402554.4U CN204808190U (en) | 2015-06-11 | 2015-06-11 | Link termination |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204808190U true CN204808190U (en) | 2015-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520402554.4U Active CN204808190U (en) | 2015-06-11 | 2015-06-11 | Link termination |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204808190U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113525085A (en) * | 2020-04-21 | 2021-10-22 | 北京新能源汽车股份有限公司 | Auxiliary instrument board assembly, detection method, electric connector and vehicle |
-
2015
- 2015-06-11 CN CN201520402554.4U patent/CN204808190U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113525085A (en) * | 2020-04-21 | 2021-10-22 | 北京新能源汽车股份有限公司 | Auxiliary instrument board assembly, detection method, electric connector and vehicle |
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