CN103941135B - Short circuit detection method and device - Google Patents
Short circuit detection method and device Download PDFInfo
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- CN103941135B CN103941135B CN201310343281.6A CN201310343281A CN103941135B CN 103941135 B CN103941135 B CN 103941135B CN 201310343281 A CN201310343281 A CN 201310343281A CN 103941135 B CN103941135 B CN 103941135B
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Abstract
The invention discloses a short circuit detection method and a device, wherein the method comprises the following steps: aiming at any connector without a grounding pin end, inputting a high level signal to a first suspension pin end of a female head module of the connector, detecting whether a signal at a second suspension pin end of the female head module is the high level signal, and if so, determining that the connector is short-circuited and isolating the signal between the female head module and a male head module; or, for any connector with a grounding pin end, inputting a high-level signal to the voltage dividing unit connected with any non-grounding suspended pin end of the female head module, and detecting whether the signal at the non-grounding suspended pin end is a high-level signal, if not, determining that the connector is short-circuited and isolating the signal between the female head module and the male head module. Through the scheme, short circuit detection between the connector modules can be realized relatively simply and conveniently, and when the connector is short-circuited, a module protection function can be played, so that the simplicity and the safety of short circuit detection are improved.
Description
Technical field
The present invention relates to electric circuit inspection technical field, more particularly, to a kind of method for detecting short circuit and device.
Background technology
Connector is the conventional electronic part of current electronic engineering technical field, and it is used between isolated obstructed circuit
Or the place of being blocked erects the bridge of communication in circuit, thus reaching the effect making current flowing and realizing predetermined function.Specifically
Ground, conventionally, as the application of connector, applying frequency, application power and applied environment etc. are different,
Accordingly, there exist multiple connectors possessing multi-form and structure, be such as used for FPC（Flexible Printed Circuit,
Flexible PCB）In memory bar and memory bank between the golden finger part that is attached and conventional possess needle-like male
And the connection member of receptacle-shaped female etc..
Specifically, in actual applications, when displacement in connector male head insertion female or misplaces, or when pressing
It will usually connector short circuit occurring and then causing the connector modules can not normal work when FPC golden finger be shifted over or misplaces
The problem made, for this kind of situation, at present frequently with connector male head module and female module are re-registrated operation mode,
Or keep away to connector each pin number consecutively lead and then according to the mode that each lead carries out short-circuit test to adjacent each pin
Exempt from the short circuit phenomenon of connector, but, it has been found that to avoid the short circuit of connector by the way of re-registrating operation
It is likely to cause the reduction of components and parts, the particularly damage of precision components or the performance of components and parts and precision during phenomenon
The problems such as, and using to connector each pin number consecutively lead and then according to each lead, adjacent each pin is carried out with short circuit survey
Examination mode come to avoid connector short circuit phenomenon when, due to needing that all lead is numbered thus leading to each pin of connector
Cause short-circuit test process relatively complicated, and, when connector is short-circuited, above two mode all cannot be each to connector
Module provides short-circuit protection function, thus the security of circuit can not be improved, it follows that in the presence of prior art
The effect of connector short circuit test method is not good and security is not high.
Content of the invention
In view of this, a kind of method for detecting short circuit and device are embodiments provided, in order to solve in prior art
Exist carries out the problem that during short-circuit test, effect is poor and security is relatively low to connector.
A kind of method for detecting short circuit, including：
For arbitrary connector not possessing grounding lead foot, to the first hanging pin of the female module of described connector
End input one high level signal, and whether the signal detected at the second hanging leads ends of described female module is high level letter
Number, if it is determined that described connector is in short-circuit condition, and the public affairs by the female module of described connector and described connector
Signal between head module is isolated.
A kind of method for detecting short circuit, including：
For arbitrary connector possessing grounding lead foot, arbitrary ungrounded outstanding to the female module with described connector
The partial pressure unit that empty leads ends are connected inputs a high level signal, and whether detects signal at described ungrounded hanging leads ends
For high level signal, if not it is determined that described connector is in short-circuit condition, and by the female module of described connector with described
Signal between the male module of connector is isolated.
A kind of short-circuit detecting device it is adaptable to arbitrary connector not possessing grounding lead foot, including：
Detector unit, for for arbitrary connector not possessing grounding lead foot, to the female module of described connector
The first hanging leads ends input a high level signal；
Whether detecting unit, be high for the signal at the second hanging leads ends of the female module detecting described connector
Level signal, if it is determined that described connector is in short-circuit condition, and by the female module of described connector and described connection
Signal between the male module of device is isolated.
A kind of short-circuit detecting device it is adaptable to arbitrary connector possessing grounding lead foot, including detector unit, partial pressure list
Unit and detecting unit, wherein：
Described partial pressure unit one end is connected with described detector unit, and the other end to be detected possesses grounding lead foot with arbitrary
The female module of connector arbitrary ungrounded hanging leads ends be connected；
Described detector unit, for be connected to the arbitrary ungrounded hanging leads ends of the female module with described connector
Partial pressure unit inputs a high level signal；
Described detecting unit, whether the signal at ungrounded hanging leads ends being connected with described partial pressure unit for detecting
For high level signal, if not it is determined that described connector is in short-circuit condition, and by the female module of described connector with described
Signal between the male module of connector is isolated.
The present invention has the beneficial effect that：
Embodiments provide a kind of method for detecting short circuit and device, described method for detecting short circuit includes：For appoint
One connector not possessing grounding lead foot, the first hanging leads ends to the female module of described connector input a high level
Signal, and whether the signal detected at the second hanging leads ends of described female module is high level signal, if it is determined that institute
State connector and be in short-circuit condition, and by the signal between the female module of described connector and the male module of described connector
Isolated；Or, for arbitrary connector possessing grounding lead foot, arbitrary non-to the female module with described connector
It is grounded partial pressure unit input one high level signal that hanging leads ends are connected, and detect the letter at described ungrounded hanging leads ends
Number whether it is high level signal, if not it is determined that described connector is in short-circuit condition, and the female module by described connector
Signal and the male module of described connector between is isolated.By technical scheme described in the embodiment of the present invention, can be relatively
For easily realizing the short-circuit detecting between connector modules, and when connector is short-circuited, module protection work(can be played
Can, improve simplification and the security of short-circuit detecting.
Brief description
Fig. 1 show the schematic flow sheet of method for detecting short circuit described in the embodiment of the present invention one；
Fig. 2 show the schematic flow sheet of method for detecting short circuit described in the embodiment of the present invention two；
Fig. 3 show the structural representation of short-circuit detecting device described in the embodiment of the present invention three；
Fig. 4 show the concrete structure schematic diagram one of short-circuit detecting device described in the embodiment of the present invention three；
Fig. 5 show the concrete structure schematic diagram two of short-circuit detecting device described in the embodiment of the present invention three；
Fig. 6 show the concrete structure schematic diagram three of short-circuit detecting device described in the embodiment of the present invention three；
Fig. 7 show the concrete structure schematic diagram four of short-circuit detecting device described in the embodiment of the present invention three；
Fig. 8 show the structural representation of short-circuit detecting device described in the embodiment of the present invention four；
Fig. 9 show the concrete structure schematic diagram one of short-circuit detecting device described in the embodiment of the present invention four；
Figure 10 show the concrete structure schematic diagram two of short-circuit detecting device described in the embodiment of the present invention four；
Figure 11 show the concrete structure schematic diagram three of short-circuit detecting device described in the embodiment of the present invention four；
Figure 12 show the concrete structure schematic diagram four of short-circuit detecting device described in the embodiment of the present invention four.
Specific embodiment
Embodiments provide a kind of method for detecting short circuit and device, described method for detecting short circuit includes：For appoint
One does not possess grounding lead foot（Described grounding lead foot is Ground leads ends, is generally identified with GND）Connector, to
First hanging leads ends of the female module of described connector（Described hanging leads ends refer to arbitrary be in vacant state, when
Before the leads ends that are not used by）Input a high level signal, and detect the letter at the second hanging leads ends of described female module
Number whether it is high level signal, if it is determined that described connector is in short-circuit condition, and the female module by described connector
Signal and the male module of described connector between is isolated；Or, for arbitrary connector possessing grounding lead foot,
Input a high level signal to the partial pressure unit that the arbitrary ungrounded hanging leads ends of the female module with described connector are connected,
And whether the signal detected at described ungrounded hanging leads ends is high level signal, if not it is determined that described connector is in
Short-circuit condition, and the signal between the female module of described connector and the male module of described connector is isolated.Logical
Cross technical scheme described in the embodiment of the present invention, the short-circuit detecting between connector modules can be realized relatively simplely, and even
When connecing device and being short-circuited, module protection function can be played, improve simplification and the security of connector short-circuit detecting.
With reference to Figure of description, embodiments of the present invention is further illustrated, but the present invention is not limited to following reality
Apply example.
Embodiment one：
As shown in figure 1, it is the schematic flow sheet of method for detecting short circuit described in the embodiment of the present invention one, described short circuit inspection
Survey method is applicable to arbitrary connector not possessing grounding lead foot；Specifically, described method for detecting short circuit may include following
Step：
Step 101：For arbitrary connector not possessing grounding lead foot, to the first of the female module of described connector
Hanging leads ends input a high level signal, and whether the signal detected at the second hanging leads ends of described female module is high
Level signal, if so, then execution step 102, otherwise, execution step 103.
Specifically, in embodiment one of the present invention, when being attached the short-circuit detecting of device, in order to avoid connector
In other circuit signals interference, need the arbitrary hanging leads ends input one detection letter of female module to described connector
Number（It is usually a high level signal）, and carry out the detecting of corresponding signal at another hanging leads ends；And, due to the present invention
Connector in embodiment one is the connector not possessing grounding lead foot, and therefore, described hanging leads ends are also believed to
Arbitrary ungrounded hanging leads ends.
Step 102：Determine that described connector is in short-circuit condition, and by the female module of described connector and described connection
Signal between the male module of device is isolated.
Specifically, for arbitrary connector not possessing grounding lead foot, because described connector is in normal work shape
During state, each leads ends in the female module of described connector, such as should between the first hanging leads ends and the second hanging leads ends
It is electrically isolated from each other, when the first hanging leads ends of the female module to described connector input a high level signal, institute
State other leads ends of the female module of connector, any of this high level signal at such as the second hanging leads ends, can't be subject to
Impact；And when described connector is in short-circuit condition, each leads ends in the female module of described connector, such as first is hanging
Mutually conduct between leads ends and the second hanging leads ends, first when the female module to described connector is vacantly drawn
When foot inputs a high level signal, other hanging leads ends of the female module of described connector, such as the second hanging leads ends
Place occurs the approximately equalised high level signal with this high level signal, therefore, in embodiment one of the present invention, when to institute
The the first hanging leads ends stating the female module of connector input a high level signal and detect the second of described female module
When signal at hanging leads ends is also high level signal, can confirm that described connector is in short-circuit condition, now, can be using certainly
Signal between the female module of described connector and the male module of described connector is isolated by dynamic or manual mode,
The embodiment of the present invention is not limited in any way to this.
Step 103：Signal between the female module of described connector and the male module of described connector is remained
Connection status.
Specifically, when the first hanging leads ends of the female module to described connector input a high level signal, and detect
Signal at second hanging leads ends of the female module measuring described connector is not during high level signal it is known that described first
Hanging leads ends are still in being electrically isolated from each other state with described second hanging leads ends, and that is, described connector is not short-circuit, because
Signal between the female module of described connector and the male module of described connector can be remained connection status by this.
Further, in embodiment one of the present invention, after determining that described connector is in short-circuit condition, described
Method can also include：
Carry out signal alarm.
Specifically, can be by the way of the signal alarm such as buzzer or light emitting diode or other type of alarms are reported
Alert, the embodiment of the present invention is not limited in any way to this.
The embodiment of the present invention one provides a kind of method for detecting short circuit, and described method for detecting short circuit includes：For arbitrary not
Possesses the connector of grounding lead foot, to the first hanging leads ends input one high level letter of the female module of described connector
Number, and whether the signal detected at the second hanging leads ends of described female module is high level signal, if it is determined that described
Connector is in short-circuit condition, and the signal between the female module of described connector and the male module of described connector is entered
Row isolation.By technical scheme described in the embodiment of the present invention one, the short circuit between connector modules can be realized relatively simplely
Detection, and when connector is short-circuited, module protection function can be played, improve simplification and the safety of short-circuit detecting
Property.
Embodiment two：
Based on the principle similar with method for detecting short circuit described in the embodiment of the present invention one, the embodiment of the present invention two provides
A kind of method for detecting short circuit being applicable to arbitrary connector possessing grounding lead foot, as shown in Fig. 2 it is implemented for the present invention
The schematic flow sheet of method for detecting short circuit described in example two, described method for detecting short circuit may include following steps：
Step 201：For arbitrary connector possessing grounding lead foot, arbitrary to the female module with described connector
The partial pressure unit that ungrounded hanging leads ends are connected inputs a high level signal, and detects at described ungrounded hanging leads ends
Whether signal is high level signal, if it is not, then execution step 202, if so, then execution step 203.
Specifically, in embodiment two of the present invention, because each connector is the connector possessing grounding lead foot,
Therefore, when described connector is in short-circuit condition, each leads ends of the female module of described connector, such as each ungrounded hanging
Voltage at leads ends all can be pulled down to and the voltage identical numerical value at described grounding lead foot, therefore, in institute of the present invention
State in embodiment two, when being attached the short-circuit detecting of device, can adopt arbitrary non-to the female module with described connector
The one end being grounded the partial pressure unit that hanging leads ends are connected inputs a high level signal, and detects the other end of described partial pressure unit
Whether the signal at place is the mode of high level signal carrying out.
Wherein, described partial pressure unit may include an anode be connected with high level signal output end, negative electrode ungrounded with described
The vacantly connected light emitting diode of leads ends, an or positive pole is connected with high level signal output end, negative pole is ungrounded outstanding with described
The buzzer that empty leads ends are connected, or one end be connected with high level signal output end, the other end and described ungrounded hanging pin
Divider resistance that end is connected etc., the embodiment of the present invention is not limited in any way to this.
Step 202：Determine that described connector is in short-circuit condition, and by the female module of described connector and described connection
Signal between the male module of device is isolated.
Specifically, it is not high level signal when detecting the signal at described ungrounded hanging leads ends, that is, described non-connect
When voltage at the hanging leads ends in ground is pulled down to voltage identical numerical value at the grounding lead foot of described connector, can recognize
It is in short-circuit condition for described connector；Now, can by the way of automatic or manual by the female module of described connector with
Signal between the male module of described connector is isolated, and the embodiment of the present invention is not limited in any way to this.
It should be noted that in embodiment two of the present invention, when described partial pressure unit may include an anode and height electricity
The light emitting diode that flat signal output part is connected, negative electrode is connected with described ungrounded hanging leads ends, or a positive pole and high level
During the buzzer that signal output part is connected, negative pole is connected with described ungrounded hanging leads ends, it is in the described connector of determination
During short-circuit condition, described partial pressure unit is also used as alarm unit to carry out signal alarm.
Further, when described partial pressure unit only includes the components and parts that divider resistance etc. cannot realize signal alarm,
When determining that described connector is in short-circuit condition, can also separately set signal alarm unit to carry out signal alarm, the present invention is implemented
Example is not limited in any way to this.
Step 203：Signal between the female module of described connector and the male module of described connector is remained
Connection status.
Specifically, when detecting the signal at described ungrounded hanging leads ends for high level signal, that is, described ungrounded
When voltage at hanging leads ends is not pulled down to voltage identical numerical value at the grounding lead foot of described connector, can recognize
It is in normal condition for described connector, now, can be by the male module of the female module of described connector and described connector
Between signal remain connection status.
The embodiment of the present invention two provides a kind of method for detecting short circuit, and described method for detecting short circuit includes：For arbitrary tool
The connector of standby grounding lead foot, the partial pressure being connected to the arbitrary ungrounded hanging leads ends of the female module with described connector
Unit inputs a high level signal, and whether the signal detected at described ungrounded hanging leads ends is high level signal, if it is not,
Then determine that described connector is in short-circuit condition, and by the male module of the female module of described connector and described connector it
Between signal isolated.By technical scheme described in the embodiment of the present invention two, connector modules can be realized relatively simplely
Between short-circuit detecting, and when connector is short-circuited, module protection function can be played, improve the simple of short-circuit detecting
Property and security.
Embodiment three：
The embodiment of the present invention three provides a kind of short circuit inspection being applicable to arbitrary connector not possessing grounding lead foot
Survey device, described short-circuit detecting device can be applicable in the method for detecting short circuit described in the embodiment of the present invention one, specifically, such as
Shown in Fig. 3, it is the structural representation of short-circuit detecting device described in the embodiment of the present invention three, and described short-circuit detecting device is permissible
Including detector unit 11 and detecting unit 12, wherein：
Described detector unit 11 is used for for arbitrary connector not possessing grounding lead foot, to the female of described connector
First hanging leads ends of module（Non Connected pin1, NC pin1）Input a high level signal.
Described detecting unit 12 is used for detecting the second hanging leads ends of the female module of described connector（Non
Connected pin2, NC pin2）Whether the signal at place is high level signal, if it is determined that described connector is in short circuit
State, and the signal between the female module of described connector and the male module of described connector is isolated.
Further, described detecting unit 12 is additionally operable to vacantly draw when the second of the female module detecting described connector
When signal at foot is not high level signal, by between the female module of described connector and the male module of described connector
Signal remain connection status.
Specifically, in embodiment three of the present invention, described detecting unit 12 can be by optocoupler, triode, field effect
Should manage or the components and parts such as relay composition, the embodiment of the present invention is not limited in any way to this.
Further, as shown in Figure 4（Fig. 4 is that the concrete structure of short-circuit detecting device described in the embodiment of the present invention three shows
It is intended to one）, when described detecting unit 12 is made up of optocoupler, the connection between described detecting unit 12 and described connector
Relation can be：
1st pin of described optocoupler and the second hanging leads ends of the female module of described connector（NC pin2）Phase
Even, the 2nd pin, the 3rd pin ground connection, the signal input part of the male module of the 4th pin and described connector（Vin2）It is connected, and described the
4 pin are also by the signal input part of series resistance and the female module of described connector（Vin1）It is connected；Wherein, described optocoupler
1st pin of device is the anode of the interior light emitting diodes of described optocoupler, and the 2nd pin is the internal illumination of described optocoupler
The negative electrode of diode, the 3rd pin is the emitter stage of the inside phototriode of described optocoupler, and the 4th pin is described optocoupler
Inside phototriode colelctor electrode.
When signal at the second hanging leads ends of the female module of described connector is high level signal, optocoupler
Conducting, now, due to the grounded emitter of the inside phototriode of described optocoupler, therefore, described optocoupler interior
Voltage at the colelctor electrode of portion's phototriode will be pulled down to zero, so that detecting unit 12 is to described connector male head
The voltage of module output is also zero, and then reaches between the female module of described connector and the male module of described connector
The effect isolated of signal；Signal at the second hanging leads ends of the female module of described connector is not high level
During signal, optocoupler does not simultaneously turn on, and now, the signal input part of connector female end module can be by series resistance to described company
The signal input part connecing device male module inputs corresponding voltage, thus reaching the female module of described connector and described company
Connect the effect that the signal between the male module of device remains connection status.
Further, as shown in Figure 5（Fig. 5 is that the concrete structure of short-circuit detecting device described in the embodiment of the present invention three shows
It is intended to two）, when described detecting unit 12 is made up of triode, the connection between described detecting unit 12 and described connector is closed
System can be：
Second hanging leads ends of the female module of the base stage of described triode and described connector（NC pin2）It is connected,
The signal input part of the male module of grounded emitter, colelctor electrode and described connector（Vin2）It is connected, and described colelctor electrode is also
Signal input part by series resistance and the female module of described connector（Vin1）It is connected.
When signal at the second hanging leads ends of the female module of described connector is high level signal, triode is led
Logical, now, due to the grounded emitter of described triode, therefore, the voltage at the colelctor electrode of described triode will be pulled down
It is zero, so that the voltage that detecting unit 12 exports to described connector male head module is also zero, and then reach described company
Connect the effect that the signal between the female module of device and the male module of described connector is isolated；Mother when described connector
When signal at second hanging leads ends of head module is not high level signal, triode is in the state of not turning on, and now, connects
The signal input part of device female module can be inputted corresponding by series resistance to the signal input part of described connector male head module
Voltage, thus reach the signal between the female module of described connector and the male module of described connector is remained even
Connect the effect of state.
Further, as shown in Figure 6（Fig. 6 is that the concrete structure of short-circuit detecting device described in the embodiment of the present invention three shows
It is intended to three）, when described detecting unit 12 is made up of FET, the connection between described detecting unit 12 and described connector
Relation can be：
Second hanging leads ends of the female module of the grid of described FET and described connector（NC pin2）Phase
Even, source ground, the signal input part of the male module of drain electrode and described connector（Vin2）Be connected, and described drain electrode also by
The signal input part of the female module of series resistance and described connector（Vin1）It is connected.
When signal at the second hanging leads ends of the female module of described connector is high level signal, described field effect
Should pipe turn on, now, due to the source ground of described FET, therefore, the voltage at the drain electrode of described FET will
Be pulled down to zero so that the voltage that detecting unit 12 exports to described connector male head module is also zero, and then reach by
The effect that signal between the female module of described connector and the male module of described connector is isolated；When described connection
When signal at second hanging leads ends of the female module of device is not high level signal, described FET is in and does not turn on shape
State, now, the signal input part of connector female end module can be defeated to the signal of described connector male head module by series resistance
Enter end and input corresponding voltage, thus reaching between the female module of described connector and the male module of described connector
Signal remains the effect of connection status.
Further, as shown in Figure 7（Fig. 7 is that the concrete structure of short-circuit detecting device described in the embodiment of the present invention three shows
It is intended to four）, when described detecting unit 12 is made up of relay, the connection between described detecting unit 12 and described connector is closed
System can be：
Second hanging leads ends of the female module of one end of the coil of described relay and described connector（NC pin2）
It is connected, the other end is grounded, the movable contact ground connection of the armature of described relay, normally opened contact and the male module of described connector
Signal input part（Vin2）It is connected, and described normally opened contact is also by the letter of series resistance and the female module of described connector
Number input（Vin1）It is connected.
When signal at the second hanging leads ends of the female module of described connector is high level signal, relay line
Circle energising, suction-operated is produced to the movable contact of the armature of described relay so that the movable contact of the armature of described relay with
Described normally opened contact contacts, due to movable contact one end ground connection of the armature of described relay, therefore, the armature of described relay
Normally opened contact at voltage will be pulled down to zero, so that what detecting unit 12 exported to described connector male head module
Voltage is also zero, and then reaches and carry out the signal between the female module of described connector and the male module of described connector
The effect of isolation；When signal at the second hanging leads ends of the female module of described connector is not high level signal, institute
State the movable contact of armature of relay and described normally opened contact can't make electrical contact with, now, the signal of connector female end module is defeated
Enter end and corresponding voltage can be inputted to the signal input part of described connector male head module by series resistance, thus reaching institute
State the effect that the signal between the female module of connector and the male module of described connector remains connection status.
Further, in embodiment of the present invention, described short-circuit detecting device can also include alarm unit 13, its
In：
Described alarm unit 13 is used for, after determining that described connector is in short-circuit condition, carrying out signal alarm.
Specifically, described alarm unit 13 can be made up of devices such as light emitting diode or buzzers, the embodiment of the present invention pair
This is not limited in any way.
Further, when described alarm unit 13 is made up of light emitting diode, the anode of described light emitting diode can be with
Second hanging leads ends of the female module of described connector are connected, minus earth；When described alarm unit is made up of buzzer
When, the positive pole of described buzzer can be connected with the second hanging leads ends of the female module of described connector, minus earth.
The embodiment of the present invention three provides a kind of short-circuit detecting device, and described short-circuit detecting device includes：Appoint for being directed to
One connector not possessing grounding lead foot, the first hanging leads ends to the female module of described connector input a high level
The detector unit of signal；And, for the signal at the second hanging leads ends of the female module detecting described connector whether
For high level signal, if it is determined that described connector is in short-circuit condition, and by the female module of described connector with described
The detecting unit that signal between the male module of connector is isolated.By technical scheme described in the embodiment of the present invention three,
The short-circuit detecting between connector modules can be realized relatively simplely, and when connector is short-circuited, module can be played
Defencive function, improves simplification and the security of short-circuit detecting.
Example IV：
The embodiment of the present invention four provides a kind of short-circuit detecting being applicable to arbitrary connector possessing grounding lead foot
Device, described short-circuit detecting device can be applicable in the method for detecting short circuit described in the embodiment of the present invention two, specifically, such as schemes
Shown in 8, it is the structural representation of short-circuit detecting device described in the embodiment of the present invention four, and described short-circuit detecting device can wrap
Include detector unit 21, partial pressure unit 22 and detecting unit 23, wherein：
Described partial pressure unit 22 one end is connected with described detector unit 21, and the other end to be detected possesses grounding lead with arbitrary
Foot（GND）The female module of connector arbitrary ungrounded hanging leads ends（NC pin）It is connected；
Described detector unit 21 is used for being connected to the arbitrary ungrounded hanging leads ends of the female module with described connector
Partial pressure unit 22 input a high level signal；
Described detecting unit 23 is used for the signal at the ungrounded hanging leads ends that detecting is connected with described partial pressure unit 22
Whether be high level signal, if not it is determined that described connector is in short-circuit condition, and by the female module of described connector with
Signal between the male module of described connector is isolated.
Further, described detecting unit 23 be additionally operable to when detect be connected with described partial pressure unit 22 ungrounded vacantly
When signal at leads ends is high level signal, by between the female module of described connector and the male module of described connector
Signal remain connection status.
Wherein, described partial pressure unit 22 may include that an anode is connected with high level signal output end, negative electrode non-is connect with described
The light emitting diode that the hanging leads ends in ground are connected, or a positive pole be connected with high level signal output end, negative pole ungrounded with described
The buzzer that hanging leads ends are connected, or one end is connected with high level signal output end, the other end ungrounded is vacantly drawn with described
The divider resistance that foot is connected, the embodiment of the present invention is not limited in any way to this.
Specifically, in example IV of the present invention, described detecting unit 23 can be by optocoupler, triode, field effect
Should manage or the components and parts such as relay composition, the embodiment of the present invention is not limited in any way to this.
Further, as shown in Figure 9（Fig. 9 is that the concrete structure of short-circuit detecting device described in the embodiment of the present invention four shows
It is intended to one）, when described detecting unit 23 is made up of optocoupler, the connection between described detecting unit 23 and described connector
Relation can be：
1st pin of described optocoupler and the ungrounded hanging leads ends being connected with described partial pressure unit 22（NC pin）Phase
Even, the 2nd pin ground connection, the signal input part of the female module of the 4th pin and described connector（Vin1）It is connected, the 3rd pin and described company
Connect the signal input part of the male module of device（Vin2）It is connected, and described 3rd pin is grounded also by series resistance；Wherein, institute
State optocoupler the 1st pin be described optocoupler interior light emitting diodes anode, the 2nd pin is the interior of described optocoupler
The negative electrode of portion's light emitting diode, the 3rd pin is the emitter stage of the inside phototriode of described optocoupler, and the 4th pin is described light
The colelctor electrode of the inside phototriode of coupling device.
When signal at the ungrounded hanging leads ends being connected with described partial pressure unit 22 is not high level signal, optocoupler
Device is in nonconducting state, and now, the signal input part of the female module of described connector cannot pass through described optocoupler
Realize being connected with the signal between the signal input part of the male module of described connector, therefore, it can reach by described connection
The effect that signal between the female module of device and the male module of described connector is isolated；When with described partial pressure unit 22
When signal at connected ungrounded hanging leads ends is high level signal, optocoupler turns on, now, the mother of described connector
The signal input part of head module can realize the signal input part with the male module of described connector by described optocoupler
Between signal connect, thus can reach between the female module of described connector and the male module of described connector
Signal remains the effect of connection status.
Further, as shown in Figure 10（Figure 10 is the concrete structure of short-circuit detecting device described in the embodiment of the present invention four
Schematic diagram two）, when described detecting unit 23 is made up of triode, the connection between described detecting unit 23 and described connector
Relation can be：
The base stage of described triode and the ungrounded hanging leads ends being connected with described partial pressure unit 22（NC pin）It is connected,
The signal input part of the female module of colelctor electrode and described connector（Vin1）It is connected, the male mould of emitter stage and described connector
The signal input part of block（Vin2）It is connected, and described emitter stage is grounded also by series resistance.
When signal at the ungrounded hanging leads ends being connected with described partial pressure unit 22 is not high level signal, three poles
Pipe is in nonconducting state, and now, the signal input part of the female module of described connector cannot be realized by described triode
Signal between the signal input part of the male module of described connector is connected, and therefore, it can reach by described connector
The effect that signal between the male module of female module and described connector is isolated；When being connected with described partial pressure unit 22
Ungrounded hanging leads ends at signal be high level signal when, triode ON, now, the female module of described connector
Signal input part can realize the letter and the signal input part of male module of described connector between by described triode
Number connect, thus can reach by between the female module of described connector and the male module of described connector signal keep
Effect for connection status.
Further, as shown in figure 11（Figure 11 is the concrete structure of short-circuit detecting device described in the embodiment of the present invention four
Schematic diagram three）, when described detecting unit 23 is made up of FET, the company between described detecting unit 23 and described connector
The relation of connecing can be：
The grid of described FET and the ungrounded hanging leads ends being connected with described partial pressure unit 22（NC pin）Phase
Even, the signal input part of the female module of drain electrode and described connector（Vin1）It is connected, the male mould of source electrode and described connector
The signal input part of block（Vin2）It is connected, and described source electrode is grounded also by series resistance；
When signal at the ungrounded hanging leads ends being connected with described partial pressure unit 22 is not high level signal, field is imitated
Nonconducting state should be in by pipe, now, the signal input part of the female module of described connector cannot pass through described optocoupler
Realize being connected with the signal between the signal input part of the male module of described connector, therefore, it can reach by described connection
The effect that signal between the female module of device and the male module of described connector is isolated；When with described partial pressure unit 22
When signal at connected ungrounded hanging leads ends is high level signal, FET turns on, now, the mother of described connector
The signal input part of head module can realize the signal input part with the male module of described connector by described FET
Between signal connect, thus can reach between the female module of described connector and the male module of described connector
Signal remains the effect of connection status.
Further, as shown in figure 12（Figure 12 is the concrete structure of short-circuit detecting device described in the embodiment of the present invention four
Schematic diagram four）, when described detecting unit 23 is made up of relay, the connection between described detecting unit 23 and described connector
Relation can be：
One end of the coil of described relay and the ungrounded hanging leads ends being connected with described partial pressure unit 22（NC
pin）It is connected, the other end is grounded, the signal input of the female module of the movable contact of the armature of described relay and described connector
End（Vin1）Be connected, the signal input part of the male module of normally opened contact and described connector（Vin2）It is connected, and described normally opened
Contact is grounded also by series resistance.
When signal at the ungrounded hanging leads ends being connected with described partial pressure unit 22 is not high level signal, described
The movable contact of the armature of relay can't make electrical contact with described normally opened contact, now, the letter of the female module of described connector
Number input cannot realize signal and the signal input part of male module of described connector between even by described relay
Connect, therefore, it can reach by the signal between the female module of described connector and the male module of described connector carry out every
From effect；When signal at the ungrounded hanging leads ends being connected with described partial pressure unit 22 is high level signal, relay
Device coil electricity, suction-operated can be produced to the movable contact of the armature of described relay so that the armature of described relay dynamic
Contact is contacted with described normally opened contact, so enable described connector female module signal input part pass through described
Relay is realized being connected with the signal between the signal input part of the male module of described connector, thus can reach will be described
Signal between the female module of connector and the male module of described connector remains the effect of connection status.
Further, in example IV of the present invention, described short-circuit detecting device can also include alarm unit 24,
Wherein：
Described alarm unit 24 is used for, after determining that described connector is in short-circuit condition, carrying out signal alarm.
Specifically, described alarm unit 24 can be made up of components and parts such as light emitting diode or buzzers, and the present invention is implemented
Example is not limited in any way to this.
Further, when described alarm unit 24 is made up of light emitting diode, the anode of described light emitting diode can be with
The high level signal input of described partial pressure unit 22 is connected, negative electrode can and be connected with described partial pressure unit 22 ungrounded vacantly
Leads ends are connected；When described alarm unit 24 is made up of buzzer, the positive pole of described buzzer can be with described partial pressure unit 22
High level signal input be connected, the ungrounded hanging leads ends that can and be connected with described partial pressure unit 22 of negative pole connected.
It should be noted that in example IV of the present invention, when described partial pressure unit 22 may include an anode and height
The light emitting diode that level signal output end is connected, negative electrode is connected with described ungrounded hanging leads ends, or a positive pole and height electricity
During the buzzer that flat signal output part is connected, negative pole is connected with described ungrounded hanging leads ends, determining at described connector
When short-circuit condition, described partial pressure unit 22 can be carried out signal alarm directly as described alarm unit 24, the present invention is real
Apply example this is not limited in any way.
The embodiment of the present invention four provides a kind of short-circuit detecting device, and described short-circuit detecting device includes detector unit, divides
Pressure unit and detecting unit, wherein：Described partial pressure unit one end is connected with described detector unit, and the other end is to be detected with arbitrary
The female module of the connector possessing grounding lead foot arbitrary ungrounded hanging leads ends be connected；Described detector unit is used for
Input a high level signal to the partial pressure unit that the arbitrary ungrounded hanging leads ends of the female module with described connector are connected；
Whether the signal that described detecting unit is used at the ungrounded hanging leads ends that detecting is connected with described partial pressure unit is high level
Signal, if not it is determined that described connector is in short-circuit condition, and by the female module of described connector and described connector
Signal between male module is isolated.By technical scheme described in the embodiment of the present invention four, can realize relatively simplely
Short-circuit detecting between connector modules, and when connector is short-circuited, module protection function can be played, improve short circuit
The simplification of detection and security.
Obviously, those skilled in the art can carry out the various changes and modification essence without deviating from the present invention to the present invention
God and scope.So, if these modifications of the present invention and modification belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprise these changes and modification.
Claims (18)
1. a kind of method for detecting short circuit, including：
For arbitrary connector not possessing grounding lead foot, defeated to the first hanging leads ends of the female module of described connector
Enter a high level signal, and whether the signal detected at the second hanging leads ends of described female module is high level signal, if
It is it is determined that described connector is in short-circuit condition, and the male mould by the female module of described connector and described connector
Signal between block is isolated；
When signal at the second hanging leads ends of the female module detecting described connector is not high level signal, by institute
The signal stated between the female module of connector and the male module of described connector remains connection status.
2. method for detecting short circuit as claimed in claim 1 it is characterised in that determine described connector be in short-circuit condition it
Afterwards, methods described also includes：
Carry out signal alarm.
3. a kind of method for detecting short circuit, including：
For arbitrary connector possessing grounding lead foot, arbitrary ungrounded to the female module with described connector is vacantly drawn
The partial pressure unit that foot is connected inputs a high level signal, and whether the signal detected at described ungrounded hanging leads ends is high
Level signal, if not it is determined that described connector is in short-circuit condition, and by the female module of described connector and described connection
Signal between the male module of device is isolated；
When detecting the signal at the ungrounded hanging leads ends being connected with described partial pressure unit for high level signal, will be described
Signal between the female module of connector and the male module of described connector remains connection status.
4. method for detecting short circuit as claimed in claim 3 it is characterised in that
Described partial pressure unit include an anode be connected with high level signal output end, negative electrode and described ungrounded hanging leads ends phase
A light emitting diode even or positive pole is connected with high level signal output end, negative pole is connected with described ungrounded hanging leads ends
Buzzer or the partial pressure electricity that one end is connected with high level signal output end, the other end is connected with described ungrounded hanging leads ends
Resistance.
5. described method for detecting short circuit as arbitrary in claim 3～4 it is characterised in that be in short in connector as described in determination
After line state, methods described also includes：
Carry out signal alarm.
6. a kind of short-circuit detecting device is it is adaptable to arbitrary connector not possessing grounding lead foot, including：
Detector unit, for for arbitrary connector not possessing grounding lead foot, to the of the female module of described connector
One hanging leads ends input a high level signal；
Whether detecting unit, be high level for the signal at the second hanging leads ends of the female module detecting described connector
Signal, if it is determined that described connector is in short-circuit condition, and by the female module of described connector and described connector
Signal between male module is isolated；
Described detecting unit, be additionally operable to when detect described connector the second hanging leads ends of female module at signal not
During for high level signal, the signal between the female module of described connector and the male module of described connector is remained even
Connect state.
7. short-circuit detecting device as claimed in claim 6 it is characterised in that
Described detecting unit is made up of optocoupler, triode, FET or relay.
8. short-circuit detecting device as claimed in claim 6 it is characterised in that
When described detecting unit is made up of optocoupler：
1st pin of described optocoupler is connected with the second hanging leads ends of the female module of described connector, the 2nd pin, the 3rd pin
Ground connection, the 4th pin is connected with the signal input part of the male module of described connector, and described 4th pin is also by series resistance
It is connected with the signal input part of the female module of described connector；
Wherein, the 1st pin of described optocoupler is the anode of the interior light emitting diodes of described optocoupler, and the 2nd pin is described
The negative electrode of the interior light emitting diodes of optocoupler, the 3rd pin is the emitter stage of the inside phototriode of described optocoupler, the
4 pin are the colelctor electrode of the inside phototriode of described optocoupler；
When described detecting unit is made up of triode：
The base stage of described triode is connected with the second hanging leads ends of the female module of described connector, grounded emitter, collection
Electrode is connected with the signal input part of the male module of described connector, and described colelctor electrode also by series resistance with described
The signal input part of the female module of connector is connected；
When described detecting unit is made up of FET：
The grid of described FET is connected with the second hanging leads ends of the female module of described connector, source ground, leakage
Pole is connected with the signal input part of the male module of described connector, and described drain electrode is also by series resistance and described connection
The signal input part of the female module of device is connected；
When described detecting unit is made up of relay：
One end of the coil of described relay is connected with the second hanging leads ends of the female module of described connector, another termination
Ground, the movable contact ground connection of the armature of described relay, the signal input part phase of normally opened contact and the male module of described connector
Connect, and described normally opened contact is connected with the signal input part of the female module of described connector also by series resistance.
9. short-circuit detecting device as claimed in claim 6 is it is characterised in that described device also includes alarm unit：
Described alarm unit, for, after determining that described connector is in short-circuit condition, carrying out signal alarm.
10. short-circuit detecting device as claimed in claim 9 it is characterised in that
Described alarm unit is made up of light emitting diode or buzzer.
11. short-circuit detecting devices as claimed in claim 10 it is characterised in that
When described alarm unit is made up of light emitting diode, the female mould of the anode of described light emitting diode and described connector
Second hanging leads ends of block are connected, minus earth；
When described alarm unit is made up of buzzer, the positive pole of described buzzer and the second of the female module of described connector
Hanging leads ends are connected, minus earth.
A kind of 12. short-circuit detecting devices it is adaptable to arbitrary connector possessing grounding lead foot, including detector unit, partial pressure list
Unit and detecting unit, wherein：
Described partial pressure unit one end is connected with described detector unit, the other end and arbitrary to be detected company possessing grounding lead foot
The arbitrary ungrounded hanging leads ends connecing the female module of device are connected；
Described detector unit, for the partial pressure being connected to the arbitrary ungrounded hanging leads ends of the female module with described connector
Unit inputs a high level signal；
Described detecting unit, whether the signal for detecting at the ungrounded hanging leads ends being connected with described partial pressure unit is high
Level signal, if not it is determined that described connector is in short-circuit condition, and by the female module of described connector and described connection
Signal between the male module of device is isolated；
Described detecting unit, being additionally operable to the signal when detecting at the ungrounded hanging leads ends being connected with described partial pressure unit is
During high level signal, the signal between the female module of described connector and the male module of described connector is remained and is connected
State.
13. short-circuit detecting devices as claimed in claim 12 it is characterised in that
Described partial pressure unit include an anode be connected with high level signal output end, negative electrode and described ungrounded hanging leads ends phase
A light emitting diode even or positive pole is connected with high level signal output end, negative pole is connected with described ungrounded hanging leads ends
Buzzer or the partial pressure electricity that one end is connected with high level signal output end, the other end is connected with described ungrounded hanging leads ends
Resistance.
14. such as claim 12～13 arbitrary described short-circuit detecting devices it is characterised in that
Described detecting unit is made up of optocoupler, triode, FET or relay.
15. short-circuit detecting devices as claimed in claim 14 it is characterised in that
When described detecting unit is made up of optocoupler：
1st pin of described optocoupler and the ungrounded hanging leads ends being connected with described partial pressure unit are connected, the 2nd pin ground connection,
4th pin is connected with the signal input part of the female module of described connector, the signal of the male module of the 3rd pin and described connector
Input is connected, and described 3rd pin is grounded also by series resistance；
Wherein, the 1st pin of described optocoupler is the anode of the interior light emitting diodes of described optocoupler, and the 2nd pin is described
The negative electrode of the interior light emitting diodes of optocoupler, the 3rd pin is the emitter stage of the inside phototriode of described optocoupler, the
4 pin are the colelctor electrode of the inside phototriode of described optocoupler；
When described detecting unit is made up of triode：
The base stage of described triode and the ungrounded hanging leads ends that are connected with described partial pressure unit are connected, colelctor electrode and described company
The signal input part connecing the female module of device is connected, and emitter stage is connected with the signal input part of the male module of described connector,
And described emitter stage is grounded also by series resistance；
When described detecting unit is made up of FET：
The grid of described FET and the ungrounded hanging leads ends being connected with described partial pressure unit are connected, and drain and described company
The signal input part connecing the female module of device is connected, and source electrode is connected with the signal input part of the male module of described connector, and
Described source electrode is grounded also by series resistance；
When described detecting unit is made up of relay：
One end of the coil of described relay and the ungrounded hanging leads ends that are connected with described partial pressure unit are connected, another termination
Ground, the movable contact of the armature of described relay is connected with the signal input part of the female module of described connector, normally opened contact and
The signal input part of the male module of described connector is connected, and described normally opened contact is grounded also by series resistance.
16. short-circuit detecting devices as claimed in claim 12 are it is characterised in that described device also includes alarm unit：
Described alarm unit, for, after determining that described connector is in short-circuit condition, carrying out signal alarm.
17. short-circuit detecting devices as claimed in claim 16 it is characterised in that
Described alarm unit is made up of light emitting diode or buzzer.
18. short-circuit detecting devices as claimed in claim 17 it is characterised in that
When described alarm unit is made up of light emitting diode, the anode of described light emitting diode is high electric with described partial pressure unit
Flat signal input part is connected, negative electrode and the ungrounded hanging leads ends being connected with described partial pressure unit are connected；
When described alarm unit is made up of buzzer, the positive pole of described buzzer is defeated with the high level signal of described partial pressure unit
Enter end be connected, negative pole and the ungrounded hanging leads ends that are connected with described partial pressure unit connected.
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| CN201310343281.6A CN103941135B (en) | 2013-08-07 | 2013-08-07 | Short circuit detection method and device |
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| CN106131247B (en) * | 2016-06-08 | 2019-03-12 | 青岛海信移动通信技术股份有限公司 | A kind of mobile terminal device |
| CN105974255B (en) * | 2016-06-08 | 2019-09-20 | 深圳市元征科技股份有限公司 | The adapter pin short-circuit detecting device and method of onboard diagnostic system |
| TWI648619B (en) * | 2018-03-07 | 2019-01-21 | 和碩聯合科技股份有限公司 | Connection detection system and detection method thereof |
| CN108448190B (en) * | 2018-03-30 | 2021-07-06 | 重庆长安汽车股份有限公司 | Battery heating assembly detection method |
| CN113253017A (en) * | 2021-04-16 | 2021-08-13 | 广州朗国电子科技有限公司 | Electrical performance test module of HDMI port |
| CN113451167B (en) * | 2021-07-19 | 2024-05-14 | 捷捷半导体有限公司 | Packaging test method and device and electronic equipment |
| CN116755002A (en) * | 2023-08-14 | 2023-09-15 | 上海季丰电子股份有限公司 | Connector welding state testing method and device and electronic equipment |
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| CN101256437A (en) * | 2007-02-27 | 2008-09-03 | 鸿富锦精密工业（深圳）有限公司 | Mainboard voltage feed circuit |
| CN201766242U (en) * | 2009-10-21 | 2011-03-16 | 北京兴大豪科技开发有限公司 | Insertion connection interface of main circuit board |
| JP5502439B2 (en) * | 2009-11-30 | 2014-05-28 | 株式会社東芝 | Protective relay |
| CN102255346B (en) * | 2010-05-20 | 2015-11-25 | 宏达国际电子股份有限公司 | Portable electron device |
| JP5177274B1 (en) * | 2011-10-31 | 2013-04-03 | トヨタ自動車株式会社 | Charge / discharge connector and vehicle capable of charge / discharge via the charge / discharge connector |
| CN202602326U (en) * | 2012-05-09 | 2012-12-12 | 杭州勇华车业有限公司 | Charger with over-voltage protection |
| CN202906133U (en) * | 2012-11-19 | 2013-04-24 | 重庆盾之王实业有限公司 | Leakage protective socket |
| CN202957572U (en) * | 2012-12-26 | 2013-05-29 | 深圳市伊爱高新技术开发有限公司 | RS485 bus hot-swap protection circuit for remote DC supply |
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