CN103683185B - A kind of earth leakage protecting method, device and electronic equipment - Google Patents
A kind of earth leakage protecting method, device and electronic equipment Download PDFInfo
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Abstract
This application discloses a kind of earth leakage protecting method, device and electronic equipment.The electronic equipment at least includes power supply and multiple parts to be powered, power supply is that multiple parts to be powered are powered by power switch and multiple sub-circuits, by detecting the temperature in each sub-circuit region in real time, each first temperature value got is exported to central processing unit（CPU）；To being detected by the electric current of power switch, each first current value got is exported to CPU；And in preset time：Whether each first temperature value detected and/or the first current value exceed pre-determined threshold, and control cut-out beyond the temperature value of advance thresholding and/or the power supply of the corresponding sub-circuit of current value by CPU after it exceedes pre-determined threshold.By said apparatus, electronic equipment and corresponding method, realization individually carries out earth leakage protective purpose to each sub-circuit.
Description
Technical field
The present invention relates to electron and electrician technical field, more particularly to a kind of earth leakage protecting method, device and electricity
Sub- equipment.
Background technology
With the fast development of handheld device, it has been widely used in all trades and professions, and various application scenarios
Suffer.Then, during using the handheld device, due to bad environments, user's improper use or itself manufacture not
The factor such as good, some circuit devcies of the handheld device are easily damaged in various degree, cause the generation of leakage current, and
The drain conditions are possible to progressively become more serious during use.Larger leakage current may result in these circuits
Device is damaged completely, and there is the potential potential safety hazards such as initiation fire, so as to constitute certain threat to user.And due to
Handheld device is generally using battery as main electricity, when there is above-mentioned failure, may result in battery burn, explode etc. it is hidden
Suffer from.
At present, industry is to the existing solution of above mentioned problem：In main electricity（Typically battery）End increase is protected
Protection circuit, once total output current of the power supply exceedes predetermined threshold, then cuts off main electricity.
But, using aforesaid way, the overall protection of main electricity can only be realized.And may be by leading for device interior
The circuit that multiple different sub-circuits of power supply parallel operation are constituted can not then be protected, especially when event occurs for some sub-circuit
During barrier, main electricity might not can be made to reach protection thresholding, now also can not just complete the independent guarantor to each sub-circuit
Shield.
The content of the invention
In view of this, the invention provides a kind of earth leakage protecting method, device and electronic equipment, to overcome in the prior art
Only set an overall thresholding, it is impossible to realize to each sub-circuit it is separately protected the problem of.
To overcome above mentioned problem, the present invention provides following technical scheme：
A kind of earth leakage protecting method, applied to electronic equipment, the electronic equipment at least includes power supply and multiple treated
Power supply part, the power supply is that the multiple part to be powered is powered by power switch and multiple sub-circuits, the party
Method includes：
The temperature in each sub-circuit region is detected in real time, and each first temperature value got is exported to centre
Manage device（CPU）；
Electric current by the power switch is detected, each first current value got is exported to described
CPU；
In preset time：
It is described when having more than the second temperature value of preset temperature thresholding in each described first temperature value detected
CPU controls the power switch to close the power supply that the second temperature is worth corresponding sub-circuit；
And/or, when detect have more than the second current value of predetermined current thresholding in each described first current value when, institute
Stating CPU controls the power switch to close, to cut off the power supply of the corresponding sub-circuit of second current value.
It is preferred that, when the second temperature value that preset temperature thresholding is had more than in each described first temperature value detected
When, in addition to：
The CPU starts software interface alarm, shows that the second temperature is worth corresponding sub-circuit in the software interface
On alarm mark.
It is preferred that, in addition to：
The sub-circuit of alarm mark on the debugging correspondence software interface；
When the temperature value of the sub-circuit after debugging is less than or equal to the preset temperature thresholding, the software is controlled
Alarm identification recovery reset condition on interface.
It is preferred that, when detect have more than the second current value of predetermined current thresholding in each described first current value when,
Also include：
Start hardware alarms, sub-circuit corresponding to second current value carries out police instruction.
It is preferred that, in addition to：
The power switch is debugged, the current value of the sub-circuit by currently corresponding to second current value is less than or is waited
In the predetermined current thresholding；
The power switch is opened to power to the sub-circuit.
It is preferred that, the hardware alarms include：Indicator light alarm and/or buzzer warning.
A kind of earth leakage protective device, applied to electronic equipment, the electronic equipment at least includes power supply and multiple treated
Power supply part, the power supply is that the multiple part to be powered is powered by power switch and multiple sub-circuits, the dress
Put including：
Temperature detecting unit, the temperature for detecting each sub-circuit region in real time, by get each first
Temperature value is exported to central processing unit（CPU）；
Current detecting unit, for being detected to the electric current by the power switch, by get each first
Current value is exported to the CPU；
The CPU, in preset time, each described first temperature value detected when the temperature detecting unit
In when having more than the second temperature value of preset temperature thresholding, control the power switch to close the second temperature and be worth corresponding son
The power supply of circuit；
And/or, have more than predetermined current thresholding when the current detecting unit is detected in each described first current value
The second current value when, control the power switch to close, to cut off the power supply of the corresponding sub-circuit of second current value.
It is preferred that, in addition to：The software alarm unit being connected with the CPU；
It is described soft when having more than the second temperature value of preset temperature thresholding in each described first temperature value detected
Part alarm unit, for showing alarm mark of the corresponding sub-circuit of the second temperature value on the software interface.
It is preferred that, in addition to：The hardware alarms unit being connected with the power switch；
When detect have more than the second current value of predetermined current thresholding in each described first current value when, the hardware
Alarm unit, for carrying out police instruction to the corresponding sub-circuit of second current value.
It is preferred that, the hardware alarms unit includes：Alarm lamp and/or buzzer.
A kind of electronic equipment, including：Power supply, the power switch being connected with the power supply is opened with the power supply
The multiple sub-circuits connect, the multiple parts to be powered being connected one by one with the sub-circuit are correlated, and are arranged at the electronics and are set
Standby interior above-mentioned earth leakage protective device；
Temperature detecting unit in the leakage protection circuit is connected or is arranged at the sub-circuit respectively multiple described
In sub-circuit；
Current detecting unit in the leakage protection circuit power supply that is connected with the power switch or is arranged at is opened
Inside the Pass；
The central processing unit of the earth leakage protective device is connected with the power switch.
Understand that compared with prior art, the invention discloses a kind of earth leakage protecting method, dress via above-mentioned technical scheme
Put and electronic equipment.By detecting the temperature in each sub-circuit region in real time, by each first temperature value got export to
Central processing unit；To being detected by the electric current of power switch, each first current value got is exported to centre
Manage device；And in preset time：Whether each first temperature value detected and/or the first current value exceed pre-determined threshold, and
Cut-out is controlled beyond the temperature value and/or the corresponding son of current value of advance thresholding by central processing unit after it exceedes pre-determined threshold
The power supply of circuit, so as in the real-time monitoring process to respective sub-circuit, quickly can be carried out to the sub-circuit for occurring leaking electricity
Positioning, and realization individually carries out earth leakage protective purpose to each sub-circuit.
Brief description of the drawings
In order to illustrate more clearly about the embodiment of the present invention or technical scheme of the prior art, below will be to embodiment or existing
There is the accompanying drawing used required in technology description to be briefly described, it should be apparent that, drawings in the following description are only this
The embodiment of invention, for those of ordinary skill in the art, on the premise of not paying creative work, can also basis
The accompanying drawing of offer obtains other accompanying drawings.
Fig. 1 is the basic structure schematic diagram of the electronic equipment disclosed in the embodiment of the present application one；
Fig. 2 is a kind of flow chart of earth leakage protecting method disclosed in the embodiment of the present application one；
Fig. 3 is a kind of flow chart of earth leakage protecting method disclosed in the embodiment of the present application two；
Fig. 4 is for the debugging flow chart after software interface alarm disclosed in the embodiment of the present application two；
Fig. 5 is the debugging flow chart being directed to after hardware alarms disclosed in the embodiment of the present application two；
Fig. 6 is the earth leakage protective dress on a kind of electronic equipment applied to shown in Fig. 1 disclosed in the embodiment of the present application two
The structural representation put；
Fig. 7 is the earth leakage protective on another electronic equipment applied to shown in Fig. 1 disclosed in the embodiment of the present application two
The structural representation of device.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clear, complete
Site preparation is described, it is clear that described embodiment is only a part of embodiment of the invention, rather than whole embodiments.It is based on
Embodiment in the present invention, it is every other that those of ordinary skill in the art are obtained under the premise of creative work is not made
Embodiment, belongs to the scope of protection of the invention.
From background technology, on the basis of prior art can only realize the circuit of overall protection of main electricity,
For device interior, other can not then be protected from the circuit of the different sub-circuits of main electricity parallel connection, especially only with one
The overall thresholding of individual correspondence main electricity, when some sub-circuit breaks down, its thresholding broken down may not necessarily exceed
The overall thresholding, so as to cause whether sub-circuit situation about leaking electricity occurs without learning.Therefore, this application discloses one kind electric leakage
The method of protection, by the real-time monitoring to each sub-circuit, is quickly positioned to the sub-circuit for occurring leaking electricity, so as to realize
Earth leakage protective purpose is individually carried out to each sub-circuit.Detailed process is described in detail by following examples.
Embodiment one
Earth leakage protecting method disclosed in the present application is mainly used on electronic equipment, and the basic structure of the electronic equipment is such as
Shown in Fig. 1, at least including power supply 1 and multiple parts to be powered 11, the power supply 1 passes through power switch 2 and many
Individual sub-circuit 3 is that the multiple part 11 to be powered is powered, as shown in Fig. 2 being applied to be somebody's turn to do for the embodiment of the present application one is disclosed
A kind of flow chart of earth leakage protecting method on electronic equipment, is mainly included the following steps that.
Step S101, detects the temperature in each sub-circuit region in real time, and each first temperature value got is defeated
Go out to CPU（Central Processing Unit, central processing unit）.
It is with CPU during output for the first temperature value detected during step S101 is performed
It can know what is exported otherwise.In addition, what the first temperature value detected can also can recognize that with power switch simultaneously
Mode is transferred to power switch.
Step S102, is detected to the electric current by the power switch, and each first current value got is defeated
Go out to the CPU.
It is with CPU during output for the first temperature value detected during step S102 is performed
It can know what is exported otherwise.
, can be it is also possible to perform following steps respectively in preset time after execution step S101 and step S102
Rapid S103 and step S105.
Step S103, in preset time, judges whether each corresponding first temperature value of each sub-circuit has more than pre-
If the second temperature value of temperature threshold, if it is, performing step S104；Step S101 is performed if it is not, then returning.
Step S104, determines the corresponding sub-circuit of the second temperature value, controls the power switch to close by the CPU
The second temperature is worth the power supply of corresponding sub-circuit.
During above-mentioned steps S103 and step S104 is performed, detected by the temperature to sub-circuit, work as inspection
Measure when having more than the second temperature value of preset temperature thresholding in each self-corresponding first temperature value of each sub-circuit, by described
CPU control power switches close the power supply of the corresponding sub-circuit of second temperature value.
That is, when in real-time monitoring process, to each sub-circuit corresponding first detected in preset time
Temperature value judged, when the temperature of the sub-circuit of some or multiple scripts the first temperature value of correspondence therein changes, and is changed
When temperature value after change is more than the second temperature value of preset temperature thresholding, it is known that it is current to should second temperature value sub-circuit
There is situation about leaking electricity, from there through change, the son of electric leakage can be quickly determined beyond the second temperature value of pre-determined threshold
Circuit, and related processing is carried out to the sub-circuit of the electric leakage by CPU on this basis.
Step S105, in preset time, judges whether each corresponding first current value of each sub-circuit exceedes default
Second current value of threshold, if it is, performing step S106；Step S102 is performed if it is not, then returning.
Step S106, determines the corresponding sub-circuit of second current value, controls the power switch to close by the CPU
Close, to cut off the power supply of the corresponding sub-circuit of second current value.
During above-mentioned steps S105 and step S106 is performed, by exporting to the first current value of each sub-circuit
Carry out in real time detect after, in preset time, when detect had more than in each self-corresponding first current value of each sub-circuit it is pre-
If during the second current value of threshold, controlling the power switch to close by the CPU, to cut off second current value pair
The power supply for the sub-circuit answered.
That is, when in real-time monitoring process, to the of the output that is detected in preset time to each sub-circuit
One current value judged, when some or multiple scripts therein are exported to the first current value change of sub-circuit, and is changed
When current value afterwards is the second current value more than predetermined current thresholding, it is known that it is current to should the sub-circuit of the second current value go out
Situation about now leaking electricity, from there through change, the son electricity of electric leakage can be quickly determined beyond the second current value of pre-determined threshold
Road, and related processing is carried out to the sub-circuit of the electric leakage by CPU on this basis.
It should be noted that it is above-mentioned judged in preset time during the first current value for occurring and the first temperature
Angle value not merely refers to a value, but for referring to all values in normal range (NR)；Same the second current value and
Second temperature value also not merely refers to a value, but exceeds predetermined current thresholding, the institute of preset temperature thresholding for referring to
Some values.
It is real-time, single by being carried out to each sub-circuit by technical scheme disclosed in the above embodiments of the present application
Only current feedback or temperature detection can avoid situation about can not be learnt when certain one or more sub-circuit leaks electricity；And
And, can also be simultaneously using current feedback and the dual detection mode of temperature detection or mechanism to the real-time, single of each sub-circuit
Only detection, realizes the purpose for quickly positioning each sub-circuit leaked electricity, and control power switch shut-off to occur by CPU
The sub-circuit of electric leakage, realizes isolated fault sub-circuit, other sub-circuits in parallel, or even whole circuit is obtained automatic protection
Purpose.
Embodiment two
On the basis of above-described embodiment one, when detecting drain conditions, further the technological means of increase alarm, makes
It is proper detect electric leakage sub-circuit when, the sub-circuit not leaked electricity to other automatically or even whole circuit can not only be realized
Protection, additionally it is possible to which and alarm intuitively very clear to the sub-circuit that occurs leaking electricity or carry is stated.
As shown in figure 3, disclosed in the application embodiment two a kind of flow chart of earth leakage protecting method, it is main include with
Lower step：
Step S101, detects the temperature in each sub-circuit region in real time, and each first temperature value got is defeated
Go out to CPU.
Step S102, is detected to the electric current by the power switch, and each first current value got is defeated
Go out to the CPU.
, can be it is also possible to perform respectively following in preset time after step S101 and step S102 is performed
Step S103 and step S105.
For the detection of the temperature of each sub-circuit：
Step S103, in preset time, judges whether each corresponding first temperature value of each sub-circuit has more than pre-
If the second temperature value of temperature threshold, if it is, performing step S104；Step S101 is performed if it is not, then returning.
Step S104, determines the corresponding sub-circuit of the second temperature value, controls the power switch to close by the CPU
The second temperature is worth the power supply of corresponding sub-circuit.
Step S107, the CPU start software interface alarm, show that the second temperature is worth corresponding sub-circuit described
Alarm mark on software interface.
Above-mentioned steps S101 ~ step S104 is identical with step S101 ~ step S104 disclosed in embodiment one, here no longer
Repeated.The power switch is controlled to close the corresponding sub-circuit of the second temperature value by CPU in execution above-mentioned steps
Power supply after, perform step S107, by CPU start software interface alarmed.Its alarm mode be：Show second temperature
Alarm mark of the corresponding sub-circuit of angle value on the software interface.
Specifically, setting the mark of the alarm of each sub-circuit of correspondence on the interface of the software in advance, make each
Individual sub-circuit all corresponds to an alarm mark, when detecting a certain sub-circuit or some sub-circuits leak electricity, is started by CPU
The software carries out the alarm of software interface, is shown the alarm mark that the sub-circuit leaked electricity occurs in correspondence on the alert interface
Show.For example, the display can use color lamp, or flashing lamp or LED text importings, but for specific
Display, which carries stating, to be not limited to that, as long as display reminding can be carried out.
For the type of alarm of above-mentioned used software interface, during using color lamp or flashing lamp, it can give
Each sub-circuit sets a lamp for being used to indicate, and its mode shown can be：It is all shown as in normal condition " bright "
State, when the power supply for having sub-circuit is closed, its corresponding marking light is then shown as the state of " going out ".Vice versa.It is logical
Cross and carry out status display or alarm indication using the above-mentioned various signs that can be used for showing, and sign of the prior art, can
To realize the alarm to the sub-circuit that leaks electricity, it is more intuitively embodied as, be also convenient for technical staff and it is overhauled.
It should be noted that after above-mentioned carry out software interface alarm, i.e., after step S107, in addition to such as Fig. 4
Shown flow：
The sub-circuit of alarm mark on step S109, the debugging correspondence software interface.
Step S110, judges whether the temperature value of the sub-circuit after debugging is less than or equal to the preset temperature thresholding
When, if it is, performing step S111；Step S109 is performed if it is not, then returning.
Step S111, the alarm identification recovery reset condition on the software interface is controlled by CPU.
After above-mentioned software display alarm prompting, it is known which specific sub-circuit occurs in that the situation of leakage current, perform
Fig. 4 flow, is debugged to the sub-circuit for having alarm, and the son during monitoring adjustment in real time during debugging
The temperature of circuit, after the temperature value detected is less than or equal to preset temperature thresholding, will be controlled to should sub-circuit by CPU
State of the alarm identification recovery to before not alarming.
It can be realized by performing above-mentioned steps S109 to step S111 before failture evacuation, make each sub-circuit will not
Generation secondary damage.
For inputting to the detection of the current value of each sub-circuit：
Step S105, in preset time, judges whether each corresponding first current value of each sub-circuit exceedes default
Second current value of threshold, if it is, performing step S106；Step S102 is performed if it is not, then returning.
Step S106, determines the corresponding sub-circuit of second current value, controls the power switch to close by the CPU
Close, to cut off the power supply of the corresponding sub-circuit of second current value.
Step S108, starts hardware alarms, and sub-circuit corresponding to second current value carries out police instruction.
Above-mentioned steps S105 and step S106 is identical with the step S105 and step S106 disclosed in embodiment one, here not
Repeated again.The power switch is controlled to close by CPU in execution above-mentioned steps, to cut off the second current value correspondence
Sub-circuit power supply after, perform step S108, start hardware alarms, its alarm mode be：Make correspondence sub-circuit can
The hardware shown is alarmed, such as indicator lamp or display lamp alarm, or uses audible alarm, such as alarm or buzzer
Alarm., can also be using other sound but the application is not limited to that for above-mentioned used hardware alarms mode
Type of alarm.
Specifically, by power switch and the hardware that can be shown or the hardware of audible alarm can be used to be connected in advance,
When there is the sub-circuit leaked electricity, after CPU control power switches are closed, now, the indicator lamp or aobvious associated with the power switch
Show that lamp is lit, or associate alarm with the power switch or buzzer proceeds by audible alarm.By using above-mentioned sound
The type of alarm of sound, can equally be such that the current situation for electric leakage sub-circuit occur intuitively is embodied, be also convenient for technology people
Member is overhauled.
It should be noted that after above-mentioned carry out hardware alarms, i.e., after step S108, in addition to it is as shown in Figure 5
Flow：
Step S112, debugs the power switch, current value of the reduction output to each sub-circuit.
Step S113, judge debug the power switch when each sub-circuit corresponding current value whether be less than or
During equal to the predetermined current thresholding, if it is, performing step S114；Step S112 is performed if it is not, then returning.
Step S114, opens the power switch and is powered to the sub-circuit.
After the prompting of above-mentioned hardware alarms, it is determined that there is sub-circuit situation about leaking electricity occur, then perform shown in Fig. 5
Flow, debugs power switch, makes currently to correspond to second current value and changes, and makes it below or equal to predetermined current door
Limit, that is, allow output to the second current value of the sub-circuit to come back in the range of the first current value, then start out again
The power switch is opened to be powered to the sub-circuit.
By a kind of earth leakage protecting method disclosed in above-mentioned the application embodiment two, examined using current feedback and temperature
The double check mechanism of survey, is realized to individually being detected by each sub-circuit of main electricity parallel operation, and can be fast
The purpose of the sub-circuit that speed positioning electric leakage occurs, automatic protection and isolated fault sub-circuit.Meanwhile, also increase in this embodiment
The two-stage alarm mechanism of software interface alarm and hardware alarms was, it is necessary to which explanation, both alarm mechanisms both can be independent
Use, can also use cooperatively.By using above-mentioned two-stage alarm mechanism, technical staff can be made intuitively to know specifically
Which sub-circuit leaks electricity, and by debugging, before failture evacuation, further realizes and avoid each sub-circuit from occurring two
The purpose of secondary damage.
Based on a kind of above-mentioned earth leakage protecting method disclosed in the present application, correspondingly disclosed herein as well is a kind of above-mentioned leakage of correspondence
The earth leakage protective device of electric protection method.It is described in detail below：
Embodiment three
The device is mainly used in electronic equipment illustrated in fig. 1, and the electronic equipment at least includes the He of power supply 1
Multiple parts to be powered 11, the power supply 1 is the multiple portion to be powered by power switch 2 and multiple sub-circuits 3
Part 11 is powered.As shown in fig. 6, the earth leakage protective device mainly includes：Temperature detecting unit 101, the and of current detecting unit 102
CPU103。
Electronic equipment with reference to shown in above-mentioned Fig. 1, the position in the electronic equipment of its each several part, and perform electric leakage
The process of protection is：
Temperature detecting unit 101 is connected or is disposed therein with each described sub-circuit 3, for detecting in real time described in each
The temperature in the region of sub-circuit 3, each first temperature value got is exported to CPU103.
It should be noted that the temperature detecting unit can be temperature sensor, or other temperature inductors
Part, the application is not defined to this.
Current detecting unit 102 is connected or is disposed therein with the power switch 2, for passing through the power switch
2 electric current is detected, each first current value got is exported to the CPU103.
The CPU103 is connected with power switch 2 and each sub-circuit 3 respectively, in preset time, when the temperature
When having more than the second temperature value of preset temperature thresholding in each described first temperature value that degree detection unit 101 is detected, control
Make the power supply that the power switch 2 closes the corresponding sub-circuit 3 of the second temperature value；
And/or, predetermined current door is had more than in each described first current value when the current detecting unit 102 is detected
During the second current value of limit, the power switch 2 is controlled to close, to cut off the electricity of the corresponding sub-circuit 3 of second current value
Source.
Particular content of the above-mentioned each part disclosed in the executive mode during earth leakage protective and the embodiment of the present application one
It is identical, can here it be repeated no more with cross-referenced.
Likewise, based on the software interface alarm in embodiment two and hardware alarms mechanism, as shown in fig. 7, in above-mentioned public affairs
On the basis of the earth leakage protective device opened, software alarm unit 104 and/or hardware alarms unit 105 are also increased.Both can be with
Exist simultaneously, can also individualism.
The software alarm unit 104 is connected with the CPU103, when having super in each described first temperature value detected
When crossing the second temperature value of preset temperature thresholding, the software alarm unit 104, for showing that the second temperature value is corresponding
Alarm mark of the sub-circuit 3 on software interface（Not shown in figure）.
The hardware alarms unit 105 is connected with the power switch 2, has super when detecting in each described first current value
When crossing the second current value of predetermined current thresholding, the hardware alarms unit 105, for the corresponding son of second current value
Circuit 3 carries out police instruction.The hardware alarms unit 105 can be specially buzzer and/or alarm lamp, but simultaneously not only limit
In this.
Above-mentioned software alarm unit 104 and hardware alarms unit 105, can be based on right disclosed in above-mentioned the embodiment of the present application two
The explanation progress of software alarm mechanism and hardware alarms mechanism is cross-referenced, repeats no more here.
Likewise, after failure is determined by software alarm unit 104 and/or hardware alarms unit 105, according to respective
Debugging unit（Not shown in figure）, judging unit（Not shown in figure）And start unit（Not shown in figure）Carry out related place
Reason.The process debugged also can be found in the process that each several part is realized in above-described embodiment two, be not discussed here.
By earth leakage protective device disclosed in above-mentioned the embodiment of the present application three, using current detecting unit and temperature detection list
The double check mechanism of member, is realized to individually being detected by each sub-circuit of main electricity parallel operation, and can be fast
The purpose of the sub-circuit that speed positioning electric leakage occurs, automatic protection and isolated fault sub-circuit.Meanwhile, also increase in this embodiment
The two-stage alarm mechanism of software alarm unit and hardware alarms unit.By individually using above-mentioned alarm mechanism, or adopt simultaneously
Two-stage alarm mechanism is used, technical staff can be made intuitively to know specifically which sub-circuit leaks electricity, and passes through debugging
Unit is debugged, before failture evacuation, is further realized and is avoided each sub-circuit from the purpose of secondary damage occur.
Example IV
Based on the earth leakage protecting method and device disclosed in above-mentioned the embodiment of the present application, and such as public affairs after Fig. 1, Fig. 6 combination
The a kind of electronic equipment opened, its basic structure is identical with Fig. 7, reference can be made to Fig. 7.
As shown in fig. 7, the electronic equipment includes：Power supply 1, the power switch 2 being connected with the power supply 1, with
Multiple sub-circuits 3 that the power switch 2 is connected, the multiple parts 11 to be powered being connected one by one with sub-circuit each described 3, with
And it is arranged at the earth leakage protective device described above in the electronic equipment.
Wherein, the temperature detecting unit 101 in the leakage protection circuit is set respectively in the electronic equipment shown in Fig. 7
In in multiple sub-circuits 3.
Current detecting unit 102 in the leakage protection circuit is arranged at the electricity in the electronic equipment described in Fig. 7
In source switch 2.
The CPU103 of the earth leakage protective device is connected with the power switch 2.
It should be noted that the temperature detecting unit 101 in leakage protection circuit can be arranged at the outer of the sub-circuit 3
Portion is coupled.The outside that current detecting unit 102 can also be arranged at the power switch 2 is coupled.
During alarm is performed, by connecting CPU103 software alarm unit 104, and/or by connection power switch 2
Hardware alarms unit 105 alarmed.
Based on the structure of above-mentioned electronic equipment disclosed in the present application, to its implementation procedure knot during concrete application
Fig. 7 is closed to illustrate by the example below：
Example：
The main electricity 1 provides power supply for the sub-circuit 3 of rear end by power switch 2 and supplied.Now, by being arranged at
Temperature detecting unit 101 in the region of sub-circuit 3, is detected to the state of temperature in its current place region of sub-circuit 3, and
The result detected is respectively outputted to power switch 2 and CPU103 otherwise that can know.
In addition, the 102 pairs of current values by the power switch 2 of current detecting unit being arranged inside power switch 2 enter
Row detection, and the result detected is output to CPU103 in the form of recognizable.
Within the regular hour（The time can preset, and specifically can as the case may be carried out by technical staff
Setting, the application is defined not to this）If detected temperature exceedes preset temperature thresholding, or the electricity detected
When stream output exceedes predetermined current thresholding, the electronic equipment starts earth leakage protective device and performs the following protection act to electric current：
First, starting software alarm unit 104 by CPU103 carries out software interface alarm, and power switch 2 is controlled to cut off
The power supply of electric leakage sub-circuit 3.
Second, actively being cut off the power supply for the sub-circuit 3 that leaks electricity by power switch 2, and start connected hardware alarms
Unit 105, starts hardware alarms.Indicator lamp or audible alarm can specifically be used.
There can be Different Logic combination for both the above protection act, all logical combinations are in the protection model of the application
In enclosing.
, can be faster after being alarmed by above two protection act or protection mechanism electric leakage sub-circuit
Fault zone is positioned, and carries out the debugging of correlation.Before failture evacuation, power switch 2 is held off.Work as failture evacuation
Afterwards, power switch 2 then recovers normal control logic, restarts to give the normal power supply of sub-circuit 3, while making software alarm unit
104 and hardware alarms unit 105 recover normal logic state.
It should be noted that in the accompanying drawing of said apparatus or electronic equipment, " ... " represents multiple meanings.
Set by the earth leakage protecting method disclosed in above-mentioned the embodiment of the present application, device and the electronics for being provided with the device
It is standby, by using current feedback and/or the double check mechanism of temperature detection, it is possible to achieve to by main electricity parallel operation
Each sub-circuit carry out individually detect and protect purpose；Using software interface alarm and the two-stage alarming machine of hardware alarms
System, it is possible to achieve alarmed during to being leaked electricity by each sub-circuit of main electricity parallel operation.So as to ensure faster
The sub-circuit that occurs of positioning leakage current, and automatic protection, isolation be out of order sub-circuit so that before failture evacuation, son electricity
Secondary damage will not occur for road.
The embodiment of each in this specification is described by the way of progressive, and what each embodiment was stressed is and other
Between the difference of embodiment, each embodiment identical similar portion mutually referring to.For device disclosed in embodiment
For, because it is corresponded to the method disclosed in Example, so description is fairly simple, related part is said referring to method part
It is bright.
Directly it can be held with reference to the step of the method or algorithm that the embodiments described herein is described with hardware, processor
Capable software module, or the two combination are implemented.Software module can be placed in moveable magnetic disc, CD-ROM or technology neck
In any other form of storage medium well known in domain.
The foregoing description of the disclosed embodiments, enables professional and technical personnel in the field to realize or using the present invention.
A variety of modifications to these embodiments will be apparent for those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, it is of the invention
The embodiments shown herein is not intended to be limited to, and is to fit to and principles disclosed herein and features of novelty phase one
The most wide scope caused.
Claims (11)
1. a kind of earth leakage protecting method, it is characterised in that applied to electronic equipment, the electronic equipment at least includes power supply
With multiple parts to be powered, the power supply is supplied by power switch and multiple sub-circuits for the multiple part to be powered
Electricity, this method includes：
The temperature in each sub-circuit region is detected in real time, and each first temperature value got is exported to central processing unit
CPU；
Electric current by the power switch is detected, each first current value got is exported to the centre
Manage device CPU；
In preset time：
When having more than the second temperature value of preset temperature thresholding in each described first temperature value detected, the centre
Managing device CPU controls the power switch to close the power supply that the second temperature is worth corresponding sub-circuit；
And/or, when detect have more than the second current value of predetermined current thresholding in each described first current value when, it is described in
Central processor CPU controls the power switch to close, to cut off the power supply of the corresponding sub-circuit of second current value.
2. according to the method described in claim 1, it is characterised in that had more than when in each described first temperature value detected
During the second temperature value of preset temperature thresholding, in addition to：
The central processor CPU starts software interface alarm, shows that the second temperature is worth corresponding sub-circuit described soft
Alarm mark on part interface.
3. method according to claim 2, it is characterised in that also include：
The sub-circuit of alarm mark on the debugging correspondence software interface；
When the temperature value of the sub-circuit after debugging is less than or equal to the preset temperature thresholding, the software interface is controlled
On alarm identification recovery reset condition.
4. the method according to any one in claims 1 to 3, it is characterised in that when detecting each first electricity
When the second current value of predetermined current thresholding is had more than in flow valuve, in addition to：
Start hardware alarms, sub-circuit corresponding to second current value carries out police instruction.
5. method according to claim 4, it is characterised in that also include：
The power switch is debugged, the current value of the sub-circuit by currently corresponding to second current value is less than or equal to institute
State predetermined current thresholding；
The power switch is opened to power to the sub-circuit.
6. method according to claim 4, it is characterised in that the hardware alarms include：Indicator light alarm and/or buzzing
Device is alarmed.
7. a kind of earth leakage protective device, it is characterised in that applied to electronic equipment, the electronic equipment at least includes power supply
With multiple parts to be powered, the power supply is supplied by power switch and multiple sub-circuits for the multiple part to be powered
Electricity, the device includes：
Temperature detecting unit, the temperature for detecting each sub-circuit region in real time, by each first temperature got
Value is exported to central processor CPU；
Current detecting unit, for being detected to the electric current by the power switch, by each first electric current got
Value is exported to the central processor CPU；
The central processor CPU, in preset time, detect when the temperature detecting unit each described first
When having more than the second temperature value of preset temperature thresholding in temperature value, the power switch is controlled to close the second temperature value pair
The power supply for the sub-circuit answered；
And/or, the of predetermined current thresholding is had more than in each described first current value when the current detecting unit is detected
During two current values, the power switch is controlled to close, to cut off the power supply of the corresponding sub-circuit of second current value.
8. device according to claim 7, it is characterised in that also include：The software being connected with the central processor CPU
Alarm unit；
When having more than the second temperature value of preset temperature thresholding in each described first temperature value detected, the software report
Alert unit, for showing alarm mark of the corresponding sub-circuit of the second temperature value on software interface.
9. device according to claim 7, it is characterised in that also include：The hardware alarms being connected with the power switch
Unit；
When detect have more than the second current value of predetermined current thresholding in each described first current value when, the hardware alarms
Unit, for carrying out police instruction to the corresponding sub-circuit of second current value.
10. device according to claim 9, it is characterised in that the hardware alarms unit includes：Alarm lamp and/
Or buzzer.
11. a kind of electronic equipment, it is characterised in that including：Power supply, the power switch being connected with the power supply, with
Multiple sub-circuits of the power switch connection, the multiple parts to be powered being connected one by one with the sub-circuit, and be arranged at
The earth leakage protective device described in claim 7~10 in the electronic equipment；
Temperature detecting unit in the earth leakage protective device is connected or is arranged at respectively multiple son electricity with the sub-circuit
In road；
Current detecting unit in the earth leakage protective device is connected or is arranged in the power switch with the power switch；
The central processor CPU of the earth leakage protective device is connected with the power switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201210359663.3A CN103683185B (en) | 2012-09-24 | 2012-09-24 | A kind of earth leakage protecting method, device and electronic equipment |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201210359663.3A CN103683185B (en) | 2012-09-24 | 2012-09-24 | A kind of earth leakage protecting method, device and electronic equipment |
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| CN103683185A CN103683185A (en) | 2014-03-26 |
| CN103683185B true CN103683185B (en) | 2017-11-03 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109188241B (en) * | 2018-08-28 | 2021-07-09 | Oppo（重庆）智能科技有限公司 | Circuit detection method, circuit detection device, electronic equipment and computer-readable storage medium |
| CN113030781B (en) * | 2021-02-26 | 2023-06-20 | 维沃移动通信有限公司 | Leakage detection method and electronic equipment |
| CN116679235A (en) * | 2022-02-22 | 2023-09-01 | 荣耀终端有限公司 | Leakage detection method for electronic device, electronic equipment and storage medium |
| CN114624569A (en) * | 2022-03-04 | 2022-06-14 | 惠州Tcl移动通信有限公司 | Sensor circuit abnormality detection method, circuit, device, intelligent device, and medium |
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| CN1241055A (en) * | 1998-07-02 | 2000-01-12 | 北京中利兴机电电子技术有限公司 | contactless intelligent switch device |
| CN2720615Y (en) * | 2004-08-13 | 2005-08-24 | 陈耀生 | Intelligent electricity leakage breaker |
| CN101957415A (en) * | 2009-07-13 | 2011-01-26 | 新普科技股份有限公司 | Soldering iron state detection system and method |
| CN202333747U (en) * | 2011-10-19 | 2012-07-11 | 沁阳市电业综合公司 | Electric leakage protection device of guard ground system |
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| CN1241055A (en) * | 1998-07-02 | 2000-01-12 | 北京中利兴机电电子技术有限公司 | contactless intelligent switch device |
| CN2720615Y (en) * | 2004-08-13 | 2005-08-24 | 陈耀生 | Intelligent electricity leakage breaker |
| CN101957415A (en) * | 2009-07-13 | 2011-01-26 | 新普科技股份有限公司 | Soldering iron state detection system and method |
| CN202333747U (en) * | 2011-10-19 | 2012-07-11 | 沁阳市电业综合公司 | Electric leakage protection device of guard ground system |
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