CN207124472U - A kind of charging port detecting system - Google Patents

A kind of charging port detecting system Download PDF

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Publication number
CN207124472U
CN207124472U CN201721018732.9U CN201721018732U CN207124472U CN 207124472 U CN207124472 U CN 207124472U CN 201721018732 U CN201721018732 U CN 201721018732U CN 207124472 U CN207124472 U CN 207124472U
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Prior art keywords
pin
charging port
capacitor
circuits
voltage detector
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CN201721018732.9U
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Chinese (zh)
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肖石文
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Vivo Mobile Communication Co Ltd
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Vivo Mobile Communication Co Ltd
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Abstract

The utility model provides a kind of charging port detecting system, including:It is arranged at charging port, and the phase shift RC circuits being connected with charging port;The voltage detector being connected with RC circuits;The processor being connected with voltage detector.Charging port detecting system provided by the utility model; pin water inlet corrosion failure can be reduced by the power-off of controlling switch; so that pin improves water resistance; in the case of the charging network being connected with charging port charges or is load-carrying; when detecting that charging network voltage drops to certain threshold value; starting protection measure; load equipment or terminal can be protected; charging port detecting system is simple and reliable simultaneously; cost is cheap; the antistatic and surge capacity of charging network can be improved, so as to protect mobile terminal.

Description

A kind of charging port detecting system
Technical field
It the utility model is related to technical field of electronic products, more particularly to a kind of charging port detecting system.
Background technology
Because in type-c specifications, CC1/CC2 pins are used for whether detection device to have insertion.Need to examine in mobile terminal When whether survey has ancillary equipment insertion, integrated circuit connection output CC1/CC2 pins, acquiescence is pulled up by 80uA electric current, institute It is often powered with two pins of CC1/CC2 on mother's type-c mouth.
When USB (Universal Serial Bus, USB) socket is miscellaneous into sweat, steam, charged ion During matter etc., two pins of CC1/CC2 are powered, and the charged ion impurity between CC1 or CC2 pins and ground pin can inhale benefit band ionization Sub- impurity forms low impedance path, shadow so as to accelerate the corrosion between CC1 or CC2 and ground pin between CC1 or CC2 and ground Equipment insertion detection is rung, so as to cause to judge by accident.
The problem of for the band galvano-cautery of CC1 or CC2 pins, manufacturer terminal also enters without formation to CC1 or CC2 pins at present The relatively easy and lower-cost solution of row protection.
Utility model content
The utility model provides a kind of charging port detecting system, easy with pin of the solution in the prior art at charging port Generation band galvano-cautery, causes to form low impedance path between pin and ground, influences the problem of equipment detection causes erroneous judgement.
The utility model provides a kind of charging port detecting system, including:
It is arranged at charging port, and the phase shift RC circuits being connected with the charging port;It is connected with the RC circuits Voltage detector;The processor being connected with the voltage detector.
Wherein, the RC circuits include:Divider resistance, the detection resistance connected with the divider resistance, and with it is described Detection resistance capacitor in parallel, the voltage detector are connected with the both positive and negative polarity of the capacitor.
Wherein, charging port detecting system also includes:Charging network;
The first end of the divider resistance is connected with the charging port and the charging network respectively, the divider resistance The second end be connected with the detection resistance.
Wherein, it is provided with the charging port corresponding when the testing result of the voltage detector is more than voltage threshold Channel conductive, the first pin that corresponding passage is closed when the testing result of the voltage detector is less than voltage threshold and Second pin.
Wherein, first pin and the second pin are connected with ancillary equipment.
Wherein, the RC circuits include:
The first RC circuits that are connected with the first pin at the charging port and draw with second at the charging port 2nd RC circuits of pin connection.
Wherein, the first RC circuits include:
The first divider resistance being connected with first pin, the first detection electricity connected with first divider resistance Resistance, and first capacitor in parallel with first detection resistance.
Wherein, the 2nd RC circuits include:
The second divider resistance being connected with the second pin, the second detection electricity connected with second divider resistance Resistance, and second capacitor in parallel with second detection resistance.
Wherein, the voltage detector includes:First voltage detector and second voltage detector;
The first voltage detector is connected with the both positive and negative polarity of first capacitor, the second voltage detector and institute State the both positive and negative polarity connection of the second capacitor.
Wherein, when first pin, the second pin are in high level, with first pin, described The ancillary equipment of two pins connection is the ancillary equipment of the first kind;
When first pin is in high level, the second pin is in low level, with first pin, described The ancillary equipment of second pin connection is the ancillary equipment of Second Type;
When first pin is in low level, the second pin is in high level, with first pin, described The ancillary equipment of second pin connection is the ancillary equipment of the 3rd type.
The beneficial effect of technical solutions of the utility model is:
Technical solutions of the utility model, by the charging network matched with charging port, passively examined using RC circuits Survey so that the pin of mobile terminal charging port itself do not have to it is powered, can reduce pin water inlet corrosion failure so that pin Water resistance is improved, in the case of charging network charges or be load-carrying, detects that charging network voltage drops to certain threshold value When, starting protection measure, load equipment or terminal can be protected, while charging port detecting system is simple and reliable, cost is cheap, The antistatic and surge capacity of charging network can be improved, so as to protect mobile terminal.
Brief description of the drawings
In order to illustrate more clearly of the technical scheme of the utility model embodiment, the utility model embodiment will be retouched below The required accompanying drawing used is briefly described in stating, it should be apparent that, drawings in the following description are only the utility model Some embodiments, for those of ordinary skill in the art, without having to pay creative labor, can be with root Other accompanying drawings are obtained according to these accompanying drawings.
Fig. 1 represents the charging port detecting system schematic diagram one of the utility model embodiment;
Fig. 2 represents the charging port detecting system schematic diagram two of the utility model embodiment;
Fig. 3 represents the charging port detecting system schematic diagram three of the utility model embodiment.
Wherein in figure:1st, RC circuits;11st, divider resistance;12nd, detection resistance;13rd, capacitor;2nd, voltage detector;3rd, locate Manage device;4th, charging port;51st, the first pin;52nd, second pin;6th, the first RC circuits;61st, the first divider resistance;62nd, first Detection resistance;63rd, the first capacitor;7th, the 2nd RC circuits;71st, the second divider resistance;72nd, the second detection resistance;73rd, the second electricity Container.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out Clearly and completely describe, it is clear that described embodiment is the utility model part of the embodiment, rather than whole implementation Example.Based on the embodiment in the utility model, those of ordinary skill in the art are obtained under the premise of creative work is not made The every other embodiment obtained, belong to the scope of the utility model protection.
The utility model embodiment provides a kind of charging port detecting system, as shown in figures 1 and 3, including:
It is arranged at charging port 4, and the phase shift RC circuits 1 being connected with charging port 4;The voltage being connected with RC circuits 1 Detector 2;The processor 3 being connected with voltage detector 2.
RC circuits 1 are provided with the charging port 4 of mobile terminal, voltage detector 2 is connected with RC circuits 1, detects RC Magnitude of voltage corresponding to capacitor on circuit 1, by the magnitude of voltage of acquisition compared with voltage threshold, by comparative result send to Processor 3, respective operations are performed according to comparative result by processor 3.
RC circuits 1 include:Divider resistance 11, the detection resistance 12 connected with divider resistance 11, and with detection resistance 12 Capacitor 13 in parallel, voltage detector 2 are connected with the both positive and negative polarity of capacitor 13.
RC circuits 1 include divider resistance 11 and the detection resistance 12 being in series, wherein detection resistance 12 and capacitor 13 simultaneously Connection, i.e., detection resistance 12 is located in tie point, capacitor 13 is located on the second branch road.
In the utility model embodiment, charging port detecting system also includes:Charging network;The first of divider resistance 11 End is connected with charging port 4 and charging network respectively, and the second end of divider resistance 11 is connected with detection resistance 12.Charging port 4 Side be connected with charging network, by charging network realize mobile terminal is charged, the opposite side of charging port 4 is formed The pin being connected with ancillary equipment.
Wherein RC circuits 1 are arranged between charging port 4 and charging network, and the divider resistance 11 of RC circuits 1 and charging Network and charging port 4 connect.Charging network is matched by a charge port with the charging port 4 of mobile terminal, in charging network Charge port matched with the charging port 4 of mobile terminal after, charging network is by divider resistance 11, right then to capacitor 13 Capacitor 13 is charged so that the voltage at the both ends of capacitor 13 rises.Wherein capacitor 13 is in parallel with detection resistance 12, in electricity While the both end voltage of container 13 raises, voltage corresponding to detection resistance 12 raises.
Wherein voltage detector 2 is in parallel with capacitor 13, for the voltage at the both ends of sensing capacitor 13, in 13 liang of capacitor When the voltage at end reaches voltage threshold, voltage detector 2 is reported to processor 3, and processor 3 is reported obtaining voltage detector 2 The voltage at the both ends of capacitor 13 when reaching the message of voltage threshold, determine that capacitor 13 is in high level, now processor 3 is opened Passage corresponding to the logical opposite side pin of charging port 4.Now the charging port 4 of the charge port of charging network and mobile terminal is shaken hands Success.
When the charge port of charging network separates with the charging port 4 of mobile terminal, processor 3 can charge closing port 4 All passages, now charging network is open-circuit condition, and the capacitor 13 in RC circuits 1 is discharged by detection resistance 12, The voltage at the both ends of capacitor 13 declines.When the voltage at the both ends of capacitor 13 drops to certain threshold value, processor 3 detects electric capacity Device 13 is low level, then passage corresponding to the opposite side pin of 3 charge closing port of processor 4.
In the utility model embodiment, the testing result being provided with charging port 4 in voltage detector 2 is more than voltage Corresponding channel conductive during threshold value, corresponding passage is closed when the testing result of voltage detector 2 is less than voltage threshold the One pin 51 and second pin 52;First pin 51 and second pin 52 are connected with ancillary equipment.
Passage corresponding to the first pin 51 and second pin 52 of the opposite side of charging port 4, the electricity at the both ends of capacitor 13 Pressure value turns on when being more than voltage threshold, is closed when the magnitude of voltage at the both ends of capacitor 13 is less than voltage threshold.
Such as:Resistance corresponding to divider resistance 11 is 47k, and resistance corresponding to detection resistance 12 is 39k, and capacitor 13 is most High-voltage value is 1.995V, voltage threshold 1.17V, when the voltage that the detection of voltage detector 2 obtains capacitor 13 is 1.17V, To the reporting message of processor 3, processor 3 judges that capacitor 13 is in high level, and now processor 3 controls charging port 4 another Passage corresponding to the first pin 51 and second pin 52 of side is opened.The voltage that the detection of voltage detector 2 obtains capacitor 13 is small When 1.17V, to the reporting message of processor 3, processor 3 judges that capacitor 13 is in low level, the now control of processor 3 charging Passage corresponding to the first pin 51 and second pin 52 of the opposite side of port 4 is closed.
In the technical scheme of the utility model embodiment, for mobile terminal before charger is not inserted into, general serial is total All power supplys, signal control, signal network, the pin detection network of line are all the charging port 4 of closed mode, i.e. mobile terminal It is not charged.
After charging port 4 and charger coordinate, the charging network at charger end is by divider resistance 11, then to electric capacity Device 13, capacitor 13 is charged so that the voltage at the both ends of capacitor 13 rises.Voltage detector 2 is in parallel with capacitor 13, For the voltage at the both ends of sensing capacitor 13, when the voltage at the both ends of capacitor 13 reaches voltage threshold, voltage detector 2 is to place Reason device 3 reports, and processor 3 reaches the message of voltage threshold in the voltage for obtaining the both ends of capacitor 13 that voltage detector 2 reports When, determine that capacitor 13 is in high level, now processor 3 is opened the first pin 51 and second of the opposite side of charging port 4 and drawn Passage corresponding to pin 52.So far, processor 3 can open the passage of charging network, data-signal and control signal, mobile terminal Charged normal, the work such as information transmission.
After charging port 4 separates with charger, passage corresponding to the first pin 51 and second pin 52 is in conducting shape State, the passage of the charge closing network of processor 3, data-signal and control signal.Capacitor 13 in RC circuits 1 discharges, electric capacity The voltage at the both ends of device 13 declines, when voltage detector 2 detects that the magnitude of voltage at the both ends of capacitor 13 is less than voltage threshold, processing Device 3 determines that capacitor 13 is in low level, and when capacitor 13 is in low level, processor 3 controls the opposite side of charging port 4 Passage corresponding to first pin 51 and second pin 52 is closed.
In technical solutions of the utility model, by the charging network matched with charging port, it is passive to be carried out using RC circuits Detection so that the pin of mobile terminal charging port itself do not have to it is powered, can reduce pin water inlet corrosion failure so that draw Pin improves water resistance, in the case of charging network charges or be load-carrying, detects that charging network voltage drops to certain threshold During value, starting protection measure, load equipment or terminal can be protected, while charging port detecting system is simple and reliable, cost is low It is honest and clean, it is easy to apply.
In the utility model embodiment, RC circuits can be set in the first pin, second pin or controlling switch, But need to ensure that the first pin, second pin or controlling switch are powered.
As shown in Figure 1, Figure 2 and Figure 3, RC circuits 1 include:The first RC being connected with the first pin 51 at charging port 4 Circuit 6 and the 2nd RC circuits 7 being connected with the second pin 52 at charging port 4.First RC circuits 6 include:With the first pin First divider resistance 61 of 51 connections, the first detection resistance 62 connected with the first divider resistance 61, and it is electric with the first detection First capacitor 63 in parallel of resistance 62.2nd RC circuits 7 include:The second divider resistance 71 being connected with second pin 52, with Second detection resistance 72 of two divider resistances 71 series connection, and second capacitor 73 in parallel with the second detection resistance 72.
Wherein the first RC circuits 6 are connected with the first pin 51, and the 2nd RC circuits 7 are connected with second pin 52, the first RC electricity Road 6 includes the first divider resistance 61, the first detection resistance 62 and the first capacitor 63, wherein the first divider resistance 61 and first Detection resistance 62 is connected, and the first detection resistance 62 and the first capacitor 63 are in two parallel branches, and the first detection resistance The magnitude of voltage at 62 both ends is equal to the magnitude of voltage at the both ends of the first capacitor 63.The first end of first divider resistance 61 and the first pin 51 Connection, the second end of the first divider resistance 61 is connected with the first detection resistance 62.
Accordingly, the 2nd RC circuits 7 include the second divider resistance 71, the second detection resistance 72 and the second capacitor 73, Wherein the second divider resistance 71 is connected with the second detection resistance 72, and the second detection resistance 72 and the second capacitor 73 are located at two simultaneously Join on branch road, and the magnitude of voltage at the both ends of the second detection resistance 72 is equal to the magnitude of voltage at the both ends of the second capacitor 73.Second partial pressure electricity The first end of resistance 71 is connected with second pin 52, and the second end of the second divider resistance 71 is connected with the second detection resistance 72.
Wherein, voltage detector 2 includes:First voltage detector and second voltage detector;First voltage detector with The both positive and negative polarity connection of first capacitor 63, second voltage detector are connected with the both positive and negative polarity of the second capacitor 73.
Specifically, first voltage detector is arranged at the both ends of the first capacitor 63, detection the first capacitor 63 both ends Voltage, when the voltage at the both ends of the first capacitor 63 is more than voltage threshold, to the reporting message of processor 3, processor 3 judges first Capacitor 63 is in high level state, when the voltage at the both ends of the first capacitor 63 is less than voltage threshold, reports and disappears to processor 3 Breath, processor 3 judge that the first capacitor 63 is in low level state.
Second voltage detector is arranged at the both ends of the second capacitor 73, detects the voltage at the both ends of the second capacitor 73, When the voltage at the both ends of the second capacitor 73 is more than voltage threshold, to the reporting message of processor 3, processor 3 judges the second capacitor 73 are in high level state, when the voltage at the both ends of the second capacitor 73 is less than voltage threshold, to the reporting message of processor 3, place Reason device 3 judges that the second capacitor 73 is in low level state.
In the utility model embodiment, when the first pin 51, second pin 52 are in high level, with the first pin 51st, the ancillary equipment that second pin 52 connects is the ancillary equipment of the first kind;High level is in the first pin 51, second is drawn When pin 52 is in low level, the ancillary equipment being connected with the first pin 51, second pin 52 is the ancillary equipment of Second Type; When first pin 51 is in low level, second pin 52 is in high level, the periphery that is connected with the first pin 51, second pin 52 Equipment is the ancillary equipment of the 3rd type.
Wherein, the first capacitor 63 is connected to test network, the second capacitor 73 by the first universal input and output port Test network is connected to by the second universal input and output port.It is in network level corresponding to the first universal input and output port During high level, the first capacitor 63 and the first pin 51 are in high level, corresponding to the second universal input and output port When network level is high level, the second capacitor 73 and second pin 52 are in high level, now with the first pin 51, The ancillary equipment of two pins 52 connection is the ancillary equipment of the first kind.
When network level corresponding to the first universal input and output port is low level, the first capacitor 63 and first draw Pin 51 is in low level, when network level corresponding to the second universal input and output port is high level, the second capacitor 73 And second pin 52 is in high level, the ancillary equipment being now connected with the first pin 51, second pin 52 is the 3rd class The ancillary equipment of type.
When network level corresponding to the first universal input and output port is high level, the first capacitor 63 and first draw Pin 51 is in high level, when network level corresponding to the second universal input and output port is low level, the second capacitor 73 And second pin 52 is in low level, the ancillary equipment being now connected with the first pin 51, second pin 52 is the second class The ancillary equipment of type.
Technical solutions of the utility model are interface detection circuit is improved to passive detection by active detecting, therefore can be fitted For any interface circuit for having load supplying.If the charger of i.e. insertion has this i.e. achievable function of electricity, while terminal Interface can be not charged.
Although having been described for the preferred embodiment of the utility model embodiment, those skilled in the art once learn Basic creative concept, then can make other change and modification to these embodiments.So appended claims are intended to solve It is interpreted as including preferred embodiment and falls into having altered and changing for the utility model embodiment scope.
Finally, it is to be noted that, herein, such as first and second or the like relational terms be used merely to by One entity or operation make a distinction with another entity or operation, and not necessarily require or imply these entities or operation Between any this actual relation or order be present.Moreover, term " comprising ", "comprising" or its any other variant meaning Covering including for nonexcludability, so that process, method, article or terminal device including a series of elements are not only wrapped Those key elements, but also the other element including being not expressly set out are included, or is also included for this process, method, article Or the key element that terminal device is intrinsic.In the absence of more restrictions, wanted by what sentence "including a ..." limited Element, it is not excluded that other identical element in the process including the key element, method, article or terminal device also be present.
Above-described is preferred embodiment of the present utility model, it should be pointed out that for the ordinary person of the art For, some improvements and modifications can also be made under the premise of principle described in the utility model is not departed from, these are improved and profit Decorations are also in the scope of protection of the utility model.

Claims (10)

  1. A kind of 1. charging port detecting system, it is characterised in that including:
    Charging port (4) place, and the phase shift RC circuits (1) being connected with the charging port (4) are arranged at, with the RC circuits (1) voltage detector (2) of connection, the processor (3) being connected with the voltage detector (2).
  2. 2. charging port detecting system according to claim 1, it is characterised in that the RC circuits (1) include:Partial pressure electricity Hinder (11), the detection resistance (12) connected with the divider resistance (11), and the electric capacity in parallel with the detection resistance (12) Device (13), the voltage detector (2) are connected with the both positive and negative polarity of the capacitor (13).
  3. 3. charging port detecting system according to claim 2, it is characterised in that also include:Charging network;
    The first end of the divider resistance (11) is connected with the charging port (4) and the charging network respectively, the partial pressure Second end of resistance (11) is connected with the detection resistance (12).
  4. 4. charging port detecting system according to claim 2, it is characterised in that charging port (4) place is provided with When the testing result of the voltage detector (2) is more than voltage threshold corresponding channel conductive, in the voltage detector (2) Testing result be less than the first pin (51) and second pin (52) that corresponding passage is closed during voltage threshold.
  5. 5. charging port detecting system according to claim 4, it is characterised in that first pin (51) and described Two pins (52) are connected with ancillary equipment.
  6. 6. charging port detecting system according to claim 4, it is characterised in that the RC circuits (1) include:
    The first RC circuits (6) that are connected with first pin (51) at the charging port (4) place and with the charging port (4) place Second pin (52) connection the 2nd RC circuits (7).
  7. 7. charging port detecting system according to claim 6, it is characterised in that the first RC circuits (6) include:
    The first divider resistance (61) being connected with first pin (51), first to be connected with first divider resistance (61) Detection resistance (62), and first capacitor (63) in parallel with first detection resistance (62).
  8. 8. charging port detecting system according to claim 7, it is characterised in that the 2nd RC circuits (7) include:
    The second divider resistance (71) being connected with the second pin (52), second to be connected with second divider resistance (71) Detection resistance (72), and second capacitor (73) in parallel with second detection resistance (72).
  9. 9. charging port detecting system according to claim 8, it is characterised in that the voltage detector (2) includes:The One voltage detector and second voltage detector;
    The first voltage detector is connected with the both positive and negative polarity of first capacitor (63), the second voltage detector and institute State the both positive and negative polarity connection of the second capacitor (73).
  10. 10. charging port detecting system according to claim 9, it is characterised in that in first pin (51), described When second pin (52) is in high level, the ancillary equipment that is connected with first pin (51), the second pin (52) For the ancillary equipment of the first kind;
    When first pin (51) is in high level, the second pin (52) is in low level, with first pin (51), the ancillary equipment of second pin (52) connection is the ancillary equipment of Second Type;
    When first pin (51) is in low level, the second pin (52) is in high level, with first pin (51), the ancillary equipment of second pin (52) connection is the ancillary equipment of the 3rd type.
CN201721018732.9U 2017-08-15 2017-08-15 A kind of charging port detecting system Active CN207124472U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201721018732.9U CN207124472U (en) 2017-08-15 2017-08-15 A kind of charging port detecting system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201721018732.9U CN207124472U (en) 2017-08-15 2017-08-15 A kind of charging port detecting system

Publications (1)

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CN207124472U true CN207124472U (en) 2018-03-20

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CN201721018732.9U Active CN207124472U (en) 2017-08-15 2017-08-15 A kind of charging port detecting system

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108536055A (en) * 2018-03-21 2018-09-14 维沃移动通信有限公司 A kind of mobile terminal and detection method

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN108536055A (en) * 2018-03-21 2018-09-14 维沃移动通信有限公司 A kind of mobile terminal and detection method

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