CN109417288A - Power cut-off device - Google Patents
Power cut-off device Download PDFInfo
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- CN109417288A CN109417288A CN201680087226.7A CN201680087226A CN109417288A CN 109417288 A CN109417288 A CN 109417288A CN 201680087226 A CN201680087226 A CN 201680087226A CN 109417288 A CN109417288 A CN 109417288A
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- switch
- circuit
- detector
- control device
- action mode
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H7/00—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
- H02H7/20—Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for electronic equipment
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- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Emergency Protection Circuit Devices (AREA)
- Protection Of Static Devices (AREA)
- Keying Circuit Devices (AREA)
Abstract
The power cut that power cut-off device will be supplied from power supply to circuit.Power cut-off device includes switching circuit, the 1st detector, the 2nd detector and control device.Switching circuit is connected in series with the 1st switch and the 2nd switch from branch between the fuse and circuit of power supply and circuit is connected to.1st detector detects the running-active status of the 1st switch.2nd detector detects the running-active status of the 2nd switch.Control device executes the 1st action mode and the 2nd action mode.In the 1st action mode, control device obtains the detected value of the 1st detector or the detected value of the 2nd detector while making the 1st switch and the 2nd switch is alternatively switched on or disconnects, and determines the state of switching circuit.In the 2nd action mode, control device connects both the 1st switch and the 2nd switch.
Description
Technical field
The present invention relates to the power cut-off devices for the power cut that will be supplied from power supply to circuit.
Background technique
The circuit acted in the presence of the supply for receiving electric power from power supply.It is known the case where failure has occurred in foregoing circuit
Under, by the power cut-off device of the power cut supplied from power supply to circuit.
Patent document 1: Japanese Unexamined Patent Publication 2012-101302 bulletin
Summary of the invention
In the action process of circuit, in order to confirm whether power cut-off device normally acts, there is hope to power supply
The state of disconnecting device carries out detecting such request.It records in patent document 1 and is reliably achieved electric-tool road
And the technology of the fail safe of electric tool.But for the technology of patent document 1, it can not be driven in motor
In the state of confirm that braking switch element and driving are normally worked with switch element, therefore can not be in the driving of motor
Detect that failure has occurred with switch element in driving in the process.
It is an object of the present invention to supplying power to circuit from power supply, in the state that circuit is acting, to will be electric
The state of the unit of source cutting is detected.
The power cut that power cut-off device of the present invention will be supplied from power supply to circuit.Power cut-off device includes
Switching circuit, the 1st detector, the 2nd detector and control device.Switching circuit from be connected to power supply and circuit fuse and electricity
Branch between road is connected in series with the 1st switch and the 2nd switch.1st detector detects the running-active status of the 1st switch.The
2 detectors detect the running-active status of the 2nd switch.Control device executes the 1st action mode and the 2nd action mode.The 1st
In action mode, control device obtains the 1st detector while making the 1st switch and the 2nd switch is alternatively switched on or disconnects
The detected value of detected value or the 2nd detector determines the state of switching circuit.In the 2nd action mode, control device makes
Both 1st switch and the 2nd switch are connected.
The effect of invention
The present invention realizes following effects: circuit is being supplied power to from power supply, it, can in the state that circuit is acting
It is detected to by the state of the unit of dump.
Detailed description of the invention
Fig. 1 is the figure for the power cut-off device for indicating that embodiment 1 is related to.
Fig. 2 is the figure of the relationship of the state and detected value of the 1st switch and the 2nd switch that indicate that embodiment 1 is related to.
Fig. 3 is the action signal for being given to the action signal of the 1st switch in the embodiment 1 and being given to the 2nd switch
Timing diagram.
Fig. 4 is the figure for indicating the functional block of control device possessed by power cut-off device that embodiment 1 is related to.
Fig. 5 is the figure of the hardware configuration for the control device for indicating that embodiment 1 is related to.
Fig. 6 is the figure of the hardware configuration for the control device for indicating that embodiment 1 is related to.
Fig. 7 is the flow chart of dump method performed by power cut-off device that embodiment 1 is related to.
Fig. 8 is the figure of the 1st detector and the 2nd detector that indicate that the variation of embodiment 1 is related to.
Fig. 9 is the figure for the power cut-off device for indicating that embodiment 2 is related to.
Figure 10 is the figure of the relationship of the state and detected value of the 1st switch and the 2nd switch that indicate that embodiment 2 is related to.
Figure 11 is the action signal for being given to the action signal of the 1st switch in embodiment 2 and being given to the 2nd switch
Timing diagram.
Specific embodiment
In the following, the power cut-off device that embodiments of the present invention are related to is described in detail based on attached drawing.In addition, this
Invention is not limited to embodiment.
Embodiment 1.
Fig. 1 is the figure for the power cut-off device 1 for indicating that embodiment 1 is related to.Power cut-off device 1 is assembled in equipment
20 plant control units 10 controlled.Plant control unit 10 has driving circuit 11 and circuit 12.Driving circuit 11 is
For to the circuit that actuator 21 is driven as motor possessed by equipment 20, cylinder and solenoid.Circuit 12 generates
Control signal for acting actuator 21, is supplied to driving circuit 11 for the control signal.Driving circuit 11 is based on from electricity
Control signal that road 12 receives and generate the driving signal for being driven to actuator 21, which is supplied to
Actuator 21.By the driving of actuator 21, thus equipment 20 is acted.Equipment 20 is robot, work mechanism, conveying dress
It sets and air-conditioning device, but it is not limited to this.
Circuit 12 is supplied power to from power supply 13.Power cut-off device 1 is the electricity that will be supplied from power supply 13 to circuit 12
The device of power cutting.Power cut-off device 1 is acted in the case where exception has occurred in circuit 12, the electric power that will be supplied to circuit 12
Cutting.Fuse 14 is set between power supply 13 and circuit 12.That is, fuse 14 is electrically connected with power supply 13, circuit 12.Power supply is cut
The power cut that disconnected device 1 will be supplied and making fuse 14 fuse from power supply 13 to circuit 12.Hereinafter, not saying especially
In the case where bright, connection refers to electrical connection.
Power cut-off device 1 includes switching circuit 2, the 1st detector 3F, the 2nd detector 3S and control device 4.Switch electricity
Road 2 has the 1st switch 2F and the 2nd switch 2S.One end of switching circuit 2 is connected between fuse 14 and circuit 12, and another
One end and grounding connection.Specifically, the 1st end Tf of the 1st switch 2F is connected between fuse 14 and circuit 12.1st switch
The 2nd end Ts of 2F is connect with the 1st end Tf of the 2nd switch 2S.The 2nd end Ts and grounding connection of 2nd switch 2S.In this way, the 1st switch
2F and the 2nd switch 2S between fuse 14 and circuit 12 branch and be connected in series.As the 1st switch 2F and the 2nd switch 2S, example
Switch element is shown, but it is not limited to this.
1st detector 3F detects the running-active status of the 1st switch 2F.Movement of the 2nd detector 3S to the 2nd switch 2S
Situation is detected.1st detector 3F and the 2nd detector 3S is identical construction.In the embodiment 1, the 1st detector 3F
And the 2nd detector 3S be the photo-coupler for being composed light emitting diode 5 and phototransistor 6, but as long as can open the 1st
The running-active status for closing 2F and the 2nd switch 2S is detected, then is not limited to photo-coupler.
1st detector 3F and the 2nd detector 3S has input terminal 5I, 6I and output terminal 5E, 6E.Input terminal 5I is
The terminal of the anode-side of light emitting diode 5, input terminal 6I are the terminals of the collector side of phototransistor 6.Output terminal 5E
It is the terminal of the cathode side of light emitting diode 5, output terminal 6E is the terminal of the emitter side of phototransistor 6.
The input terminal 5I of 1st detector 3F is connected between fuse 14 and circuit 12, is specifically connected to branch
To between the part and circuit 12 of switching circuit 2.The input terminal of the output terminal 5E and the 2nd detector 3S of 1st detector 3F
5I is connected via resistance R1.The 2nd end of the 1st switch 2F is connected between resistance R1 and the input terminal 5I of the 2nd detector 3S
Between Ts and the 1st end Tf of the 2nd switch 2S.The output terminal 5E of 2nd detector 3S is connected to the 2nd switch 2S via resistance R2
The 2nd end Ts and ground connection between.
The input terminal 6I of 1st detector 3F is connect via resistance R3 with power supply 7.The output terminal 6E of 1st detector 3F
With grounding connection.The input terminal 6I of 2nd detector 3S is connect via resistance R4 with power supply 7.The output terminal of 2nd detector 3S
6E and grounding connection.Power supply 7 is the power supply for being driven to power cut-off device 1.Power supply 7 is either not with power supply 13
Same power supply is also possible to the power supply after reducing the voltage of power supply 13.
Signal wire SL1 is connected between the input terminal 6I and power supply 7 of the 1st detector 3F, is specifically connected to input
Between terminal 6I and resistance R3.Signal wire SL1 is connected to control device 4.Signal wire SL2 is connected to the input of the 2nd detector 3S
Between terminal 6I and power supply 7, specifically it is connected between input terminal 6I and resistance R4.Signal wire SL2 is connected to control dress
Set 4.By above-mentioned construction, control device 4 obtain the 1st detector 3F input terminal 6I current potential and the 2nd detector 3S it is defeated
Enter the current potential of terminal 6I.
In the state that light emitting diode 5 does not shine, the 1st detector 3F and the 2nd detector 3S become disconnection.In the situation
Under, the current potential of the input terminal 6I of the current potential and the 2nd detector 3S of the input terminal 6I of the 1st detector 3F be by resistance R3,
R4 the voltage of power supply 7 is depressured after value.Hereinafter, by being the feelings disconnected in the 1st detector 3F and the 2nd detector 3S
The current potential of input terminal 6I under condition is properly termed as H level.
If light emitting diode 5 shines, the 1st detector 3F and the 2nd detector 3S become connection.In this case, the 1st
The current potential of the input terminal 6I of the current potential and the 2nd detector 3S of the input terminal 6I of detector 3F becomes the current potential of ground connection.Hereinafter,
The current potential of input terminal 6I in the case where the 1st detector 3F and the 2nd detector 3S are to connect is properly termed as L level.
If the 1st switch 2F is connected, electric current flows successively through fuse 14, the 1st switch 2F, the 2nd detector from power supply 13
3S, resistance R2 and ground connection.In this way, the light emitting diode 5 of the 2nd detector 3S shines, phototransistor 6 is turned on, because
The current potential of the input terminal 6I of this 2nd detector 3S becomes L level.In this case, the light emitting diode 5 of the 1st detector 3F
Do not shine, thus phototransistor 6 become off-state, as a result, the current potential of the input terminal 6I of the 1st detector 3F at
For H level.If the 1st switch 2F is disconnected, the current potential of the input terminal 6I of the 1st detector 3F becomes L level.
If the 2nd switch 2S connect, electric current from power supply 13 flow successively through fuse 14, the 1st detector 3F, resistance R1,
2nd switch 2S and ground connection.In this way, the light emitting diode 5 of the 1st detector 3F shines, phototransistor 6 is turned on, because
The current potential of the input terminal 6I of this 1st detector 3F becomes L level.In this case, the light emitting diode 5 of the 2nd detector 3S
Do not shine, thus phototransistor 6 become off-state, as a result, the current potential of the input terminal 6I of the 2nd detector 3S at
For H level.If the 2nd switch 2S is disconnected, the current potential of the input terminal 6I of the 2nd detector 3S becomes L level.
If the 1st switch 2F is connected, the current potential of the input terminal 6I of the 1st detector 3F becomes H level, if the 1st opens
It closes 2F to disconnect, then the current potential of the input terminal 6I of the 1st detector 3F becomes L level.If the 2nd switch 2S is connected, the 2nd detection
The current potential of the input terminal 6I of device 3S becomes H level, if the 2nd switch 2S is disconnected, the input terminal 6I's of the 2nd detector 3S
Current potential becomes L level.In this way, the 1st detector 3F detects the 1st the switched on and off of switch 2F, the 2nd detector 3S is to
2 the switched on and off of switch 2S are detected.
If the current potential of the input terminal 6I of the 1st detector 3F is set as SI1, by the input terminal 6I of the 2nd detector 3S
Current potential be set as SI2, then current potential SI1 be obtained from the 1st detector 3F detects the state of the 1st switch 2F as a result, electricity
Position SI2 is result obtained from the 2nd detector 3S detects the state of the 2nd switch 2S.Hereinafter, suitably by current potential SI1
Current potential SI2 is properly termed as detected value SI2 by referred to as detected value SI1.In the embodiment 1, detected value SI1, SI2 is H electricity
Flat or L level.
Fig. 2 is the state of the 1st switch 2F and the 2nd switch 2S that indicate that embodiment 1 is related to and the pass of detected value SI1, SI2
The figure of system.As shown in Fig. 2, being H level or L level according to detected value SI1, SI2, determines the 1st switch 2F and the 2nd switch 2S is
It connects or disconnects.Control device 4 determines according to the detected value SI2 of the detected value SI1 and the 2nd detector 3S of the 1st detector 3F
The state of switching circuit 2 specifically determines that the 1st switch 2F and the 2nd switch 2S is to turn on or disconnects.
Control device 4 acts the 1st switch 2F and the 2nd switch 2S.Specifically, control device 4 is by by action signal
SE1 is given to the 1st switch 2F, and action signal SE2 is given to the 2nd switch 2S, so that the 1st switch 2F and the 2nd switch 2S be connect
It is logical.If not becoming disconnected from 4 sending action signal SE1 of control device and action signal SE2, the 1st switch 2F and the 2nd switch 2S
It opens.Control device 4 can be such that the 1st switch 2F and the 2nd switch 2S independently acts.
Control device 4 executes the 1st action mode and the 2nd action mode.1st action mode be make on one side the 1st switch 2F and
2nd switch 2S is alternatively switched on or disconnects, and obtains the detected value of the detected value SI1 or the 2nd detector 3S of the 1st detector 3F on one side
SI2 and the state of switching circuit 2 is determined.2nd action mode is to connect both the 1st switch 2F and the 2nd switch 2S.
1st action mode is used to confirm the movement of switching circuit 2.2nd action mode is used for by by power supply 13 and circuit
It is cut off between 12, thus the power cut that will be supplied from power supply 13 to circuit 12.In the 1st action mode, control device 4 is being incited somebody to action
The timing (timing) that 1st switch 2F is connected disconnects the 2nd switch 2S.In addition, control device 4 disconnects the 1st switch 2F
Periodically, the 2nd switch 2S is connected.
In the case where the 1st switch 2F is connected and the 2nd switch 2S is disconnected, as shown in Fig. 2, if detected value SI1 is H electricity
Flat, detected value SI2 is L level, then the 1st switch 2F and the 2nd switch 2S are normally acted.It is disconnected in the 1st switch 2F and the 2nd switchs
2S connect in the case where, as shown in Fig. 2, if detected value SI1 be L level, detected value SI2 be H level, then the 1st switch 2F and
2nd switch 2S is normally acted.
In the 1st action mode, control device 4 is set as action signal SE1 being given to the 1st switch 2F without that will act letter
Number SE1 is given to the state of the 2nd switch 2S, obtains detected value SI1 from the 1st detector 3F, obtains detected value from the 2nd detector 3S
SI2.As shown in Fig. 2, the detected value SI2 of the 2nd detector 3S is L electricity if the detected value SI1 of the 1st detector 3F is H level
Flat, then the 1st switch 2F and the 2nd switch 2S are normally acted.
Next, control device 4 is set as action signal SE2 being given to the 2nd switch 2S without assigning action signal SE2
To the state of the 1st switch 2F, detected value SI1 is obtained from the 1st detector 3F, obtains detected value SI2 from the 2nd detector 3S.Such as Fig. 2
Shown, if the detected value SI1 of the 1st detector 3F is L level, the detected value SI2 of the 2nd detector 3S is H level, then the 1st opens
2F and the 2nd switch 2S is closed normally to act.
Control device 4 makes the 1st switch 2F and the 2nd switch 2S be alternatively switched on or disconnect on one side, obtains the 1st detector on one side
The detected value SI2 of the detected value SI1 and the 2nd detector 3S of 3F.That is, control device 4 makes in the case where the 1st switch 2F is connected
2 switch 2S are disconnected, and connect the 2nd switch 2S in the case where the 1st switch 2F is disconnected.In this way, in the 1st action mode, control
Device 4 is exclusively switched on or switched off the 1st switch 2F and the 2nd switch 2S.Control device 4 according to the value of detected value SI1, SI2,
Determine the state of switching circuit 2, specifically determines that the 1st switch 2F and the 2nd switch 2S is normal or abnormal.
Even if the 1st switch 2F is connected, if the 2nd switch 2S is disconnected, the electric current from power supply 13 also passes through fuse 14
And flow through circuit 12.Similarly, even if the 2nd switch 2S is connected, if the 1st switch 2F is disconnected, the electric current from power supply 13
Circuit 12 is flowed through through overcurrent fuse 14.Therefore, control device 4 can be by the supply from power supply 13 to the electric power of circuit 12
The state of switching circuit 2 is determined in the case where interruption, therefore switching circuit 2 can be directed at while acting circuit 12
State determined.In this way, control device 4 can be in the state of supplying power to circuit 12 from power supply 13, to not making
High current flows through fuse 14 and is detected without the state for making fuse 14 fuse.That is, power cut-off device 1 can reduce
Due to switching circuit 2 failure and in the whole a possibility that breaking down of plant control unit 10.
In the embodiment 1, control device 4 is during executing 1 action mode, the state of output switch circuit 2
Judgement result RJ.Determine that result RJ refers to the state of switching circuit 2, specifically refers to the 1st switch 2F and the 2nd switch 2S is
Normally, still at least one of the 1st switch 2F and the 2nd switch 2S is abnormal.In the former case, switching circuit 2 is positive
Often, in the latter case, switching circuit 2 is abnormal.It is also possible in the case where switching circuit 2 is normal, control device 4
It exports 0 or Low and is used as and determine result RJ, in the case where switching circuit 2 is exception, 1 or High of output is as judgement result RJ.
Determine that result RJ is not limited to foregoing teachings.Determine that result RJ is also possible to for notifying that switching circuit 2 is just
Normal or abnormal information.In this case, control device 4 can will determine that result RJ is exported to display device 22, keeps it aobvious
Show that switching circuit 2 is normal or abnormal.The operator of equipment 20 can be shown in aobvious this case that switching circuit 2 is exception
In the case where showing device 22, stop equipment 20, or continue the operating of equipment 20 while limiting function.
Determine the order for acting continuation that result RJ is also possible to the order for stopping the movement of circuit 12 or makes circuit 12.
In this case, control device 4, as result RJ is determined, can will make electricity in the case where determining switching circuit 2 is exception
The order that the movement on road 12 stops is exported to circuit 12, stops circuit 12.In the case where switching circuit 2 is abnormal, have
It may can not will be cut off from power supply 13 to the supply of the electric power of circuit 12 when exception has occurred in switching circuit 2.It is sent out in circuit 12
In the case where having given birth to exception, control device 4 using the order for stopping circuit 12 as judgement result RJ by exporting to circuit
12, so as to avoid from power supply 13 to the electric power of circuit 12 be fed with possibly can not cut off in the state of make circuit 12
The case where movement continues.
In the 2nd action mode, control device 4 connects both the 1st switch 2F and the 2nd switch 2S.In this way, electric current from
Power supply 13 flow to ground connection through overcurrent fuse 14, the 1st switch 2F and the 2nd switch 2S, therefore fuse 14 fuses.Due to fuse
14 fusing, therefore be cut off from power supply 13 to the supply of the electric power of circuit 12, therefore 12 stopping of circuit acts.If from circuit 12
It receives and the i.e. abnormal generation information IE of abnormal information has occurred in circuit 12, then control device 4 starts the 2nd action mode.
Control device 4 by from circuit 12 receive it is abnormal information IE occurs in the case where execute the 2nd action mode, from
And it will be cut off from power supply 13 to the supply of the electric power of circuit 12.As a result, it is possible to avoid from power supply 13 to the circuit for becoming exception
The state of 12 sustainable supply electric power.
Fig. 3 is to be given to the action signal SE1 of the 1st switch 2F in the embodiment 1 and be given to the dynamic of the 2nd switch 2S
Make the timing diagram of signal SE2.The horizontal axis of Fig. 3 is moment t.When action signal SE1 is H, the 1st switch 2F is connected, in action signal
The 1st switch 2F is disconnected when SE1 is L.When action signal SE2 is H, the 2nd switch 2S is connected, and when action signal SE2 is L, the 2nd is opened
2S is closed to disconnect.
As previously mentioned, electric current is from power supply 13 through overcurrent fuse if both the 1st switch 2F and the 2nd switch 2S are connected
14 flow to ground connection and fuse 14 are made to fuse.Therefore, control device 4 switchs the 1st switch 2F and the 2nd under the 1st action mode
When 2S is acted, if the two is also turned on, fuse 14 is possible to fuse.
For control device 4 in the 1st action mode, both setting the 1st switch 2F and the 2nd switch 2S become the phase disconnected
Between, so that the 1st switch 2F and the 2nd switch 2S is alternatively switched on or is disconnected.Specifically, control device 4 is as shown in figure 3, setting is dynamic
Make both signal SE1 and action signal SE2 as during L.Changing in moment t1, action signal SE1 from H is L, but dynamic
Make signal SE2 and maintains L.Action signal SE2 after the time tl at the time of t2 from L become H.In moment t3, action signal SE2 from
H becomes L, but action signal SE1 maintains L.Action signal SE1 after t 3 at the time of t4 from L become H.That is, from when
T1 is carved to during moment t2 and from moment t3 to during moment t4, the 1st switch 2F and the 2nd switch 2S become disconnection.
Control device 4 is in the 1st action mode, in the feelings for making the 1st switch 2F and the 2nd switch 2S be alternatively switched on or disconnect
Under condition, become by both setting the 1st switch 2F and the 2nd switch 2S during disconnecting, to avoid the fusing of fuse 14.
As a result, control device 4 during executing 1 action mode in, avoid the stopping of the movement of circuit 12.
Fig. 4 is the figure for indicating the functional block of control device 4 possessed by power cut-off device 1 that embodiment 1 is related to.Electricity
Source disconnecting device 1 has determination unit 4J and control unit 4C.Detected value SI1 and 2nd detection of the determination unit 4J based on the 1st detector 3F
It the detected value SI2 of device 3S and is given to the action signal SE1 of the 1st switch 2F and is given to the action signal SE2 of the 2nd switch 2S,
The state of switching circuit 2 is determined.Determination unit 4J output determines result RJ.
Action signal SE1 is given to the 1st switch 2F and connects the 1st switch 2F by control unit 4C, passes through not sending action
Signal SE1 and make the 1st switch 2F disconnect.In addition, action signal SE2 is given to the 2nd switch 2S and makes the 2nd switch by control unit 4C
2S is connected, and disconnects the 2nd switch 2S by not sending action signal SE2.Control unit 4C in the action process of circuit 12 and
In the case where not receiving abnormal generation information IE, act the 1st switch 2F and the 2nd switch 2S with the 1st action mode.Control unit
4C makes the 1st switch in the action process of circuit 12 and in the case where receiving abnormal generation information IE, with the 2nd action mode
2F and the 2nd switch 2S movement.
Fig. 5 and Fig. 6 is the figure of the hardware configuration for the control device 4 for indicating that embodiment 1 is related to.In the function of control device 4
In the case where can be by software realization, as shown in figure 5, control device 4 includes processor 4P and memory 4M.Control device 4 is had
The function of some determination unit 4J and control unit 4C is realized by processor 4P.Processor 4P is also referred to as CPU (Central
Processing Unit: central processing unit), processing unit, arithmetic unit, microprocessor, microcomputer or DSP
(Digital Signal Processor)。
In this case, the function of determination unit 4J and control unit 4C are real by the combination of software, firmware or software and firmware
It is existing.Software and firmware are described as program, are stored in memory 4M.Processor 4P is stored in memory 4M by reading, executing
Program, to realize the function of determination unit 4J and control unit 4C.Above procedure, which could also say that, makes computer execute determination unit
The program for the dump method that step performed by 4J and control unit 4C and embodiment 1 are related to.
Memory 4M realizes the function of the storage unit of control device 4.Memory 4M is RAM (Random Access
Memory), ROM (Read Only Memory), flash memories, EPROM (Erasable Programmable Read
Only Memory) and EEPROM (Electrically Erasable Programmable Read Only Memory) this
The volatibility of sample or non-volatile semiconductor memory, disk, floppy disk, CD, compact disk, miniature hdd and DVD (Digital
Versatile Disc)。
The function of determination unit 4J and control unit 4C possessed by control device 4 can also processing circuit 4AP as shown in Figure 6
It realizes.Processing circuit 4AP is for realizing the specialized hardware of the function of determination unit 4J and control unit 4C.Processing circuit 4AP is single
One circuit, compound circuit, the processor of sequencing, the processor of concurrent program, ASIC (Application Specific
Integrated Circuit), FPGA (Field Programmable Gate Array) or their combination.It both can be by
Different processing circuit 4AP realizes determination unit 4J and the respective function of control unit 4C, can also concentrate by 1 processing circuit 4AP
Realize respective function.
For each function of deciding that portion 4J and control unit 4C, it is also possible to a part by dedicated hardware realization, one
Divide and is realized by software or firmware.In this way, control device 4 can realize determination unit by hardware, software, firmware or their combination
Each function of 4J and control unit 4C.
Fig. 7 is the flow chart of dump method performed by power cut-off device 1 that embodiment 1 is related to.If from
Power supply 13 supplies power to the circuit 12 of plant control unit 10, then control device 4 starts to act.In step s101, it controls
Device 4 processed makes the 1st switch 2F and the 2nd switch 2S be alternatively switched on or disconnect.In step s 102, it is had occurred in switching circuit 2
In the case where exception (step S102, Yes), control device 4 exports in step s 103 determines result RJ.In step s 102,
In the case where 2 no exceptions of switching circuit (step S102, No), control device 4 repeats step S101 and step S102.
Fig. 8 is the figure of the 1st detector 3Fa and the 2nd detector 3Sa that indicate that the variation of embodiment 1 is related to.1st inspection
Surveying device 3Fa and the 2nd detector 3Sa is the switch for being composed coil 5a and switch 6a, and switch 6a by coil 5a by being produced
Raw magnetic force and on-off.One end of coil 5a and switch 6a become input terminal 5Ia, 6Ia, and the other end becomes output end
Sub- 5Ea, 6Ea.For the 1st detector 3Fa and the 2nd detector 3Sa, when making current flow through coil 5a, switch 6a is closed, i.e.,
Electric current flow to output terminal 6Ea from input terminal 6Ia.In this way, detected value SI1, SI2 at input terminal 6Ia are obtained and are used
1st switch 2F of aforementioned photo-coupler and the identical value of detected value SI1, SI2 of the 2nd switch 2S.
As described above, power cut-off device 1 includes switching circuit 2, from the fuse for being connected to power supply 13 and circuit 12
Branch between 14 and circuit 12 is connected in series with the 1st switch 2F and the 2nd switch 2S；And control device 4, make the 1st to open on one side
It closes 2F and the 2nd switch 2S and is alternatively switched on or disconnects the detected value SI1's and the 2nd detector 3S for obtaining the 1st detector 3F on one side
Detected value SI2 determines the state of switching circuit 2.Therefore, power cut-off device 1 switchs the 1st switch 2F or the 2nd
One of 2S connect during, another one disconnect, therefore even if the 1st switch 2F and the 2nd switch 2S confirming operation process
In be also able to maintain that supply from from power supply 13 to the electric power of circuit 12.As a result, power cut-off device 1 can be incited somebody to action from power supply 13
In the state that power supply acts circuit 12 to circuit 12, detect the state of the unit of dump, in embodiment 1
In, the state of detection switch circuit 2.
For power cut-off device 1, the 1st switch 2F and the 2nd switch 2S can be different types of element, the 1st detection
Device 3F and the 2nd detector 3S are also possible to different types of element.Therefore, power cut-off device 1 is due to used element
Range of choice expands, therefore also has the advantage that the structure can be simplified.In addition, power cut-off device 1 is by making fuse
14 fusing, thus by being cut off from power supply 13 to the supply of the electric power of circuit 12, therefore can reliably will be to the electric power of circuit 12
Supply cutting.
In the embodiment 1, power cut-off device 1 is assembled in plant control unit 10, and however, you can also not be assembled in equipment
Control device 10.In the embodiment 1, fuse 14 is not included in power cut-off device 1, but also may include in dump
Device 1.The period for being switched on or switched off the 1st switch 2F and the 2nd switch 2S is unrestricted, is according to control device 4 or circuit 12
Specification suitably set.
In the embodiment 1, circuit 12 refer to by electric conductor will resistor, inductor, capacitor and switch as
The circuit that electrical component is formed by connecting.Therefore, in the embodiment 1, circuit 12 is generated for controlling actuator 21
Control signal, which is given to the circuit of driving circuit 11, is not limited to foregoing circuit, also include electric rotating
Machine, solenoid and relay etc..
In the embodiment 1, power cut-off device 1 has the two switches of the 1st switch 2F and the 2nd switch 2S, but switchs
It is not limited to two.That is, power cut-off device 1 has multiple switch, as long as being switched on or switched off them exclusively.
The structure of embodiment 1 can be applied suitably in the following embodiments.In addition, can both delete
A part of the structure of embodiment 1 can also add other structures.
Embodiment 2.
Fig. 9 is the figure for the power cut-off device 1b for indicating that embodiment 2 is related to.Power cut-off device 1b and embodiment 1
The power cut-off device 1 that is related to the difference is that, the 1st switch 2F of switching circuit 2b and the 2nd switch 2S are connected in parallel, and
Without fuse 14.
Switching circuit 2b is configured between power supply 13 and the circuit 12 of plant control unit 10b.1st switch 2F and the 2nd is opened
2S is closed to be connected in parallel between power supply 13 and circuit 12.Diode 8F is connected between the 1st switch 2F and circuit 12.Diode 8S
It is connected between the 2nd switch 2S and circuit 12.Diode 8S, 8F connect the 1st switch 2F or the 2nd switch 2S for avoiding
When, the electric current for carrying out one side of self-closing counterflows through another party.
The input terminal 5I of 1st detector 3F is connected between the 1st switch 2F and circuit 12 via resistance R1, specifically
It is connected between the 1st switch 2F and diode 8F.The input terminal 6I of 1st detector 3F is connect via resistance R3 with power supply 7.The
Output terminal 5E, 6E of 1 detector 3F is and grounding connection.The input terminal 5I of 2nd detector 3S is connected to via resistance R2
Between 2nd switch 2S and circuit 12, specifically it is connected between the 2nd switch 2S and diode 8S.The input of 2nd detector 3S
Terminal 6I is connect via resistance R4 with power supply 7.Output terminal 5E, 6E of 2nd detector 3S is and grounding connection.
The position that signal wire SL1, SL2 are connected is identical as embodiment 1.Control device 4 obtains the defeated of the 1st detector 3F
Enter current potential i.e. current potential i.e. detected value SI1, SI2 of the input terminal 6I of detected value SI1 and the 2nd detector 3S of terminal 6I.Control
The structure of device 4 is identical as embodiment 1.
For power cut-off device 1b, if at least one of the 1st switch 2F and the 2nd switch 2S is connected, electric power
Circuit 12 is supplied to from power supply 13.In addition, for power cut-off device 1b, if the 1st switch 2F and the 2nd switch 2S this two
Person disconnects, then is cut off from power supply 13 to the supply of the electric power of circuit 12.
If the 1st switch 2F is connected, the electric current from power supply 13 branches to the 1st detection after flowing through the 1st switch 2F
Device 3F and circuit 12.If electric current flows through the 1st detector 3F, the light emitting diode 5 of the 1st detector 3F shines, photoelectric crystal
Pipe 6 is turned on, therefore the detected value SI1 of the input terminal 6I of the 1st detector 3F becomes L level.It is disconnected in the 1st switch 2F
In the case where opening, the electric current from power supply 13 does not flow through the 1st switch 2F, therefore the inspection of the input terminal 6I of the 1st detector 3F
Measured value SI1 becomes H level.
If the 2nd switch 2S is connected, the electric current from power supply 13 branches to the 2nd detection after flowing through the 2nd switch 2S
Device 3S and circuit 12.If electric current flows through the 2nd detector 3S, the light emitting diode 5 of the 2nd detector 3S shines, photoelectric crystal
Pipe 6 is turned on, therefore the detected value SI2 of the input terminal 6I of the 2nd detector 3S becomes L level.It is disconnected in the 2nd switch 2S
In the case where opening, the electric current from power supply 13 does not flow through the 2nd switch 2S, therefore the inspection of the input terminal 6I of the 2nd detector 3S
Measured value SI2 becomes H level.
Figure 10 is the state and detected value SI1, SI2 of the 1st switch 2F and the 2nd switch 2S that indicate that embodiment 2 is related to
The figure of relationship.As shown in Figure 10, it is H level or L level according to detected value SI1, SI2, determines the switch of the 1st switch 2F and the 2nd
2S is to turn on or disconnects.Control device 4 according to the detected value SI2 of the detected value SI1 and the 2nd detector 3S of the 1st detector 3F,
Determine the state of switching circuit 2b, specifically determines that the 1st switch 2F and the 2nd switch 2S is to turn on or disconnects.
In the 1st action mode, control device 4 makes the 1st switch 2F and the 2nd switch 2S be alternatively switched on or disconnect one on one side
Side obtains the detected value SI2 of the detected value SI1 and the 2nd detector 3S of the 1st detector 3F, sentences to the state of switching circuit 2b
It is fixed.That is, control device 4 disconnects the 2nd switch 2S in the case where the 1st switch 2F is connected, in the case where the 1st switch 2F is disconnected
Connect the 2nd switch 2S.In this way, control device 4 makes the 1st switch 2F and the 2nd switch 2S exclusively in the 1st action mode
It is switched on or switched off.Control device 4 determines the state of switching circuit 2b according to the value of detected value SI1, SI2, specifically determines the
1 switch 2F and the 2nd switch 2S is normal or abnormal.
In the 2nd action mode, control device 4 disconnects both the 1st switch 2F and the 2nd switch 2S.If the 1st switch
Both 2F and the 2nd switch 2S are disconnected, then are cut off from power supply 13 to the supply of the electric power of circuit 12.
In the 1st action mode, control device 4 is set as action signal SE1 being given to the 1st switch 2F without that will act letter
Number SE1 is given to the state of the 2nd switch 2S, obtains detected value SI1 from the 1st detector 3F, obtains detected value from the 2nd detector 3S
SI2.As shown in Figure 10, if the detected value SI1 of the 1st detector 3F is L level, the detected value SI2 of the 2nd detector 3S is H electricity
Flat, then the 1st switch 2F and the 2nd switch 2S are normally acted.
Next, control device 4 is set as action signal SE2 being given to the 2nd switch 2S without assigning action signal SE2
To the state of the 1st switch 2F, detected value SI1 is obtained from the 1st detector 3F, obtains detected value SI2 from the 2nd detector 3S.Such as figure
Shown in 10, if the detected value SI1 of the 1st detector 3F is H level, the detected value SI2 of the 2nd detector 3S is L level, then the 1st
Switch 2F and the 2nd switch 2S are normally acted.
If the 1st switch 2F is connected, even if the 2nd switch 2S is disconnected, the electric current from power supply 13 will also pass through the 1st switch
2F and flow through circuit 12.Similarly, if the 2nd switch 2S is connected, even if the 1st switch 2F is disconnected, the electric current from power supply 13
It will also pass through the 2nd switch 2S and flow through circuit 12.Therefore, control device 4 can be will not be from power supply 13 to the electric power of circuit 12
Supply interrupt in the case where the state of switching circuit 2b is determined, therefore can on one side make circuit 12 act while split
The state of powered-down road 2b is determined.
In this way, control device 4 can be in the state of supplying power to circuit 12 from power supply 13, detection switch circuit 2b
The state abnormally acted, the state that the supply from power supply 13 to the electric power of circuit 12 can not be cut off.Therefore, power supply is cut
Disconnected device 1b with embodiment 1 in the same manner as, can reduce the failure due to switching circuit 2b and plant control unit 10 integrally
A possibility that breaking down.Control device 4 and the something in common of embodiment 1 are, in the process for executing the 1st action mode
In, the judgement result RJ of the state of output switch circuit 2.
Figure 11 is to be given to the action signal SE1 of the 1st switch 2F in embodiment 2 and be given to the dynamic of the 2nd switch 2S
Make the timing diagram of signal SE2.The horizontal axis of Figure 11 is moment t.If both the 1st switch 2F and the 2nd switch 2S are disconnected, power supply
Disconnecting device 1b will be cut off from power supply 13 to the supply of the electric power of circuit 12.That is, when control device 4 executes 1 action mode,
If both the 1st switch 2F and the 2nd switch 2S are disconnected, it is likely that the movement of circuit 12 stops.
For control device 4 in the 1st action mode, both setting the 1st switch 2F and the 2nd switch 2S become the phase connected
Between, so that the 1st switch 2F and the 2nd switch 2S is alternatively switched on or is disconnected.Specifically, as shown in figure 11, setting is dynamic for control device 4
Make both signal SE1 and action signal SE2 as during H.Changing in moment t1, action signal SE1 from L is H, but dynamic
Make signal SE2 and maintains H.Action signal SE2 after the time tl at the time of t2 from H become L.In moment t3, action signal SE2 from
L variation is H, but action signal SE1 maintains H.Action signal SE1 after t 3 at the time of t4 from H become L.That is, from
For moment t1 to during moment t2 and from moment t3 to during moment t4, the 1st switch 2F and the 2nd switch 2S become connection.
Control device 4 is in the 1st action mode, in the feelings for making the 1st switch 2F and the 2nd switch 2S be alternatively switched on or disconnect
Under condition, during both setting the 1st switch 2F and the 2nd switch 2S become connection.Through this process, the 1st movement mould is being executed
During formula, electric power is supplied from power supply 13 to circuit 12, therefore even if the 1st switch 2F and the 2nd switch 2S be alternatively switched on or
It disconnects, also avoids the stopping of the movement of circuit 12.
As described above, the power cut-off device 1b that embodiment 2 is related to realizes that the dump being related to embodiment 1 fills
Set 1 identical functions and effects.Also, power cut-off device 1b due to not needing fuse 14 there is structure to become letter
The advantage that single.In addition, power cut-off device 1b does not need will to be used to make the required electric current that fuses of fuse 14 to flow through the 1st and open
Close 2F and the 2nd switch 2S.Therefore, as long as the 1st switch 2F of power cut-off device 1b and the 2nd switch 2S can flow through 12 institute of circuit
Need the electric current of size.In this way, power cut-off device 1b compared with the power cut-off device 1 that embodiment 1 is related to, can make
With rated current low the 1st switch 2F and the 2nd switch 2S.As a result, there is power cut-off device 1b the 1st switch 2F and the 2nd to open
The advantage that closing the option increase of 2S.
Representation shown in above embodiment 1 and embodiment 2 be the contents of the present invention an example,
It can be combined with other well-known techniques, can also save a part of structure in the range for not departing from purport of the invention
Slightly, change.
The explanation of label
1,1b power cut-off device, 2F the 1st are switched, and 2S the 2nd is switched, 2,2b switching circuit, the 1st detector of 3F, 3Fa, 3S,
The 2nd detector of 3Sa, 4 control devices, 4AP processing circuit, 4C control unit, 4J determination unit, 4P processor, 4M memory, 5 shine
Diode, 5a coil, 5E, 5Ea, 6E, 6Ea output terminal, 5I, 5Ia, 6I, 6Ia input terminal, 6 phototransistors, 6a switch,
7,13 power supply, 8F, 8S diode, 10,10b plant control unit, 11 driving circuits, 12 circuits, 14 fuses, 20 equipment, 21
Information, R1, R2, R3, R4 resistance occur extremely for actuator, 22 display devices, IE, and RJ determines as a result, SE1, SE2 action signal,
SI1, SI2 detected value (current potential), SL1, SL2 signal wire.
Claims (6)
1. a kind of power cut-off device, the power cut that will be supplied from power supply to circuit,
In the power cut-off device, include:
Switching circuit is connected in series from branch between the fuse and the circuit for being connected to the power supply and the circuit
There are the 1st switch and the 2nd switch；
1st detector detects the running-active status of the 1st switch；
2nd detector detects the running-active status of the 2nd switch；And
Control device, executes the 1st action mode and the 2nd action mode, and the 1st action mode is to make the 1st switch on one side
The inspection of the detected value or the 2nd detector that obtain the 1st detector on one side is alternatively switched on or disconnected with the 2nd switch
Measured value determines the state of the switching circuit, the 2nd action mode be make the 1st switch and the 2nd switch this
The two is connected.
2. power cut-off device according to claim 1, wherein
For the control device in the 1st action mode, both the 1st switch and the 2nd switch, which is arranged, becomes disconnected
The 1st switch and the 2nd switch is set to be alternatively switched on or disconnect during opening.
3. a kind of power cut-off device, the power cut that will be supplied from power supply to circuit,
In the power cut-off device, include:
Switching circuit is connected in parallel to the 1st switch and the 2nd switch between the power supply and the circuit；
1st detector detects the running-active status of the 1st switch；
2nd detector detects the running-active status of the 2nd switch；
Control device, executes the 1st action mode and the 2nd action mode, and the 1st action mode is to make the 1st switch on one side
The inspection of the detected value or the 2nd detector that obtain the 1st detector on one side is alternatively switched on or disconnected with the 2nd switch
Measured value determines the state of the switching circuit, the 2nd action mode be make the 1st switch and the 2nd switch this
The two disconnects.
4. power cut-off device according to claim 3, wherein
In the 1st action mode, both setting the 1st switch and the 2nd switch become to be connect the control device
The 1st switch and the 2nd switch is set to be alternatively switched on or disconnect during logical.
5. power cut-off device according to any one of claim 1 to 4, wherein
The control device exports the judgement knot of the state of the switching circuit during executing 1 action mode
Fruit.
6. power cut-off device according to any one of claim 1 to 4, wherein
The control device obtains the information for indicating the state of the circuit, the case where the information shows the circuit abnormality
Under, execute the 2nd action mode.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/JP2016/069712 WO2018003125A1 (en) | 2016-07-01 | 2016-07-01 | Power interrupting device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109417288A true CN109417288A (en) | 2019-03-01 |
| CN109417288B CN109417288B (en) | 2020-06-09 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201680087226.7A Active CN109417288B (en) | 2016-07-01 | 2016-07-01 | Power supply cut-off device |
Country Status (3)
| Country | Link |
|---|---|
| JP (1) | JP6169305B1 (en) |
| CN (1) | CN109417288B (en) |
| WO (1) | WO2018003125A1 (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826807A (en) * | 2009-10-29 | 2010-09-08 | 南京乐金熊猫电器有限公司 | Switching mode power supply device and control method thereof |
| US20140292105A1 (en) * | 2013-03-26 | 2014-10-02 | Min-Jing Hsieh | Static switch circuit for high reliability uninterruptible power supply systems |
| JP2014190960A (en) * | 2013-03-28 | 2014-10-06 | Gs Yuasa Corp | Switch failure determination device, power storage device, and switch failure determination method |
| CN105229885A (en) * | 2014-03-17 | 2016-01-06 | 三菱电机株式会社 | Electric power apparatus for controlling of supply and programmable logic controller (PLC) |
| CN105531902A (en) * | 2013-09-10 | 2016-04-27 | 株式会社东芝 | Overcharge protection device |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0259529U (en) * | 1988-10-22 | 1990-05-01 | ||
| JP2007082306A (en) * | 2005-09-13 | 2007-03-29 | Hitachi Ltd | Power supply device |
| CN107112744B (en) * | 2014-12-24 | 2019-04-26 | 株式会社杰士汤浅国际 | Apparatus for protecting power supply, power supply device and fault diagnosis method for switch |
-
2016
- 2016-07-01 WO PCT/JP2016/069712 patent/WO2018003125A1/en active Application Filing
- 2016-07-01 JP JP2017510933A patent/JP6169305B1/en active Active
- 2016-07-01 CN CN201680087226.7A patent/CN109417288B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101826807A (en) * | 2009-10-29 | 2010-09-08 | 南京乐金熊猫电器有限公司 | Switching mode power supply device and control method thereof |
| US20140292105A1 (en) * | 2013-03-26 | 2014-10-02 | Min-Jing Hsieh | Static switch circuit for high reliability uninterruptible power supply systems |
| JP2014190960A (en) * | 2013-03-28 | 2014-10-06 | Gs Yuasa Corp | Switch failure determination device, power storage device, and switch failure determination method |
| CN105531902A (en) * | 2013-09-10 | 2016-04-27 | 株式会社东芝 | Overcharge protection device |
| CN105229885A (en) * | 2014-03-17 | 2016-01-06 | 三菱电机株式会社 | Electric power apparatus for controlling of supply and programmable logic controller (PLC) |
Also Published As
| Publication number | Publication date |
|---|---|
| WO2018003125A1 (en) | 2018-01-04 |
| JPWO2018003125A1 (en) | 2018-06-28 |
| JP6169305B1 (en) | 2017-07-26 |
| CN109417288B (en) | 2020-06-09 |
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