CN110445102A - A kind of electronic RELAY devices and guard method - Google Patents
A kind of electronic RELAY devices and guard method Download PDFInfo
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- CN110445102A CN110445102A CN201910749181.0A CN201910749181A CN110445102A CN 110445102 A CN110445102 A CN 110445102A CN 201910749181 A CN201910749181 A CN 201910749181A CN 110445102 A CN110445102 A CN 110445102A
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- 238000004353 relayed correlation spectroscopy Methods 0.000 title claims abstract description 64
- 238000000034 method Methods 0.000 title claims abstract description 24
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- 230000003111 delayed effect Effects 0.000 claims description 14
- 238000004519 manufacturing process Methods 0.000 claims description 8
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Classifications
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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
- H02H7/22—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 distribution gear, e.g. bus-bar systems; for switching devices
- H02H7/222—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 distribution gear, e.g. bus-bar systems; for switching devices for switches
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- H—ELECTRICITY
- H03—ELECTRONIC CIRCUITRY
- H03K—PULSE TECHNIQUE
- H03K17/00—Electronic switching or gating, i.e. not by contact-making and –breaking
- H03K17/08—Modifications for protecting switching circuit against overcurrent or overvoltage
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Abstract
The invention discloses a kind of electronic RELAY devices and guard method, which includes microcontroller, power switch, signal acquisition module and hardware protection module；The control signal receiving end of microcontroller is electrically connected with control signal terminal, first driving signal output end of microcontroller is electrically connected with power switch, and microcontroller is used to export the first driving signal to power switch according to the control received control signal of signal receiving end；The first detection signal input terminal of hardware protection module is electrically connected with detection signal output end; second driving signal output end of hardware protection module is electrically connected with power switch, and the signal acquisition value that hardware protection module is used to be inputted according to first detection signal input terminal exports the second driving signal to power switch.The electronic RELAY devices ensure that electronic relay is stable, safe, lasting and intelligentized work.
Description
Technical field
The present embodiments relate to electric power/electronics technical field more particularly to automotive electronics and industrial automation,
More particularly relate to a kind of electronic RELAY devices and guard method.
Background technique
Relay has the function of isolation, low voltage control high pressure, main switch/anti-reverse, Small current control high current etc.
Device, is widely used in the fields such as automobile, industry at the effects of playing automatic adjustment, safeguard protection in circuit.
Switch life is long, noise is small, system power dissipation is low, good in switching process due to including for electronic relay
It the features such as electromagnetism interference and intelligence, is play an important role in relay related application.
However, electronic relay is the switching function realized by semiconductor devices, in order to ensure electronic relay is stable,
Safe and lasting work becomes particularly important to designs such as electronic RELAY devices, guard methods.
Summary of the invention
The present invention provides a kind of electronic RELAY devices and guard method, to ensure stable electronic relay, safety and hold
Long work.
In a first aspect, the electronic RELAY devices include micro- the embodiment of the invention provides a kind of electronic RELAY devices
Controller, power switch, signal acquisition module and hardware protection module；
The microcontroller includes control signal receiving end and the first driving signal output end；The signal acquisition module packet
Include detection signal output end；The hardware protection module includes first detection signal input terminal and the second driving signal output end；
Wherein, the control signal receiving end is electrically connected with control signal terminal, the first driving signal output
End be electrically connected with the power switch, the microcontroller for according to the received control signal of control signal receiving end to
The power switch exports the first driving signal；
The first detection signal input terminal is electrically connected with the detection signal output end, the second driving signal output
End is electrically connected with the power switch, and the hardware protection module is used for the letter inputted according to the first detection signal input terminal
Number collection value exports the second driving signal to the power switch.
Second aspect, the embodiment of the invention also provides a kind of guard method of electronic RELAY devices, the electronics relays
The guard method of device device is realized based on electronic RELAY devices described in first aspect；
The guard method of the electronic RELAY devices, comprising:
The microcontroller is according to the received control signal of control signal receiving end to power switch output the
One driving signal；
The signal acquisition value that the hardware protection module is inputted according to the first detection signal input terminal is to the power
Switch the second driving signal of output.
Electronic RELAY devices provided in an embodiment of the present invention include: microcontroller, power switch, signal acquisition module and
Hardware protection module, microcontroller are believed according to the control received control signal of signal receiving end to the first driving of power switch output
Number, the signal acquisition value that hardware protection module is inputted according to first detection signal input terminal is believed to the second driving of power switch output
Number, the second driving signal that the first driving signal and hardware protection module sent by microcontroller is sent controls power together
The ON/OFF of switch, since hardware protection module can quickly switch-off power switch, it is ensured that electronic relay stabilization,
Safe and lasting work.
Detailed description of the invention
Fig. 1 is a kind of structural schematic diagram of electronic RELAY devices provided in an embodiment of the present invention；
Fig. 2 is the structural schematic diagram of another electronic RELAY devices provided in an embodiment of the present invention；
Fig. 3 is the structural schematic diagram of another electronic RELAY devices provided in an embodiment of the present invention；
Fig. 4 is the flow chart of the whole work process of electronic RELAY devices provided in an embodiment of the present invention；
Fig. 5 is a kind of flow chart of the guard method of electronic RELAY devices provided in an embodiment of the present invention.
Specific embodiment
The present invention is described in further detail with reference to the accompanying drawings and examples.It is understood that this place is retouched
State that the specific embodiments are only for explaining the present invention, rather than limitation of the invention.In addition, for ease of description, in attached drawing only
Show part related to the present invention rather than entire infrastructure.
Fig. 1 is a kind of structural schematic diagram of electronic RELAY devices provided in an embodiment of the present invention, as shown in Figure 1, this reality
The electronic RELAY devices for applying example offer include microcontroller 10, power switch 40, signal acquisition module 20 and hardware protection mould
Block 30；Microcontroller 10 includes control signal receiving end AA and the first driving signal output end BB；Signal acquisition module 20 includes
Detect signal output end EE；Hardware protection module 30 includes first detection signal input terminal CC and the second driving signal output end
DD；Wherein, control signal receiving end AA is electrically connected with the control sub- QQ of signal terminal, the first driving signal output end BB and power
Switch 40 is electrically connected.Microcontroller 10 is used to be exported according to the control received control signal of signal receiving end AA to power switch 40
First driving signal；First detection signal input terminal CC is electrically connected with detection signal output end EE, the second driving signal output end
DD is electrically connected with power switch 40；Hardware protection module 30 is used for the signal acquisition inputted according to first detection signal input terminal CC
It is worth to power switch 40 and exports the second driving signal.
Wherein, signal acquisition module 20 can for example acquire electronic relay open before, open when and open after voltage
Signal, current signal, chip temperature signal and environment temperature signal；Power switch 40 for example may include insulated-gate type field effect
Ying Guan, insulated gate bipolar transistor etc.；Hardware protection module 30 for example can receive the signal acquisition of signal acquisition module 20
Value.The embodiment of the present invention is the second driving signal exported by hardware protection module 30 and the first drive that microcontroller 10 exports
Dynamic signal "AND" is sent to power switch 40 later, to control the on or off of power switch 40.Specifically, can pass through
The output threshold value of over-voltage, overcurrent and excess temperature is set, i.e., when the signal acquisition value of acquisition is greater than preset detection signal, quickly
Exporting the second driving signal closes power switch 40 quickly at this point, the second driving signal is off signal to power switch 40
It is disconnected；When the detection signal of acquisition is less than preset detection signal, the second driving signal of quick output to power switch 40, this
When, the second driving signal is normal signal, if the first driving signal that microcontroller 10 exports also is normal signal, power
Switch 40 is connected.Illustratively, when hardware protection module 30 export the second driving signal be normal signal, at this time with first drive
Power switch 40, power switch conducting are sent to after dynamic signal "AND"；When the second driving letter that hardware protection module 30 exports
Number it is off signal, at this time regardless of the first driving status signal, power switch 40 can all quickly turned off, preferably protects
Power switch 40.
Electronic RELAY devices provided in an embodiment of the present invention include: microcontroller, power switch, signal acquisition module and
Hardware protection module, microcontroller are believed according to the control received control signal of signal receiving end to the first driving of power switch output
Number, the signal acquisition value that hardware protection module is inputted according to first detection signal input terminal is believed to the second driving of power switch output
Number, the second driving signal that the first driving signal and hardware protection module sent by microcontroller is sent controls power together
The ON/OFF of switch；Since hardware protection module can quickly switch-off power switch, ensure that electronic relay fills
Set stable, safe and lasting work.
Based on the above technical solution, optionally, Fig. 2 is another electronic relay provided in an embodiment of the present invention
The structural schematic diagram of device, as shown in Fig. 2, signal acquisition module 20 includes: voltage acquisition unit 21,22 and of current acquisition unit
Temperature collecting cell 23；Voltage acquisition unit 21 includes voltage signal receiving end E1 and voltage signal output end E2；Current acquisition
Unit 22 includes current signal receiving end E3 and current signal output end E4；Temperature collecting cell 23 includes temperature signal receiving end
E5 and temperature signal output end E6；Voltage signal receiving end E1 is electrically connected with power switch 40, voltage signal output end E2 difference
It is electrically connected with hardware protection module 30 and microcontroller 10；Current signal receiving end E3 is electrically connected with power switch 40, electric current letter
Number output end E4 is electrically connected with hardware protection module 30 and microcontroller 10 respectively；Temperature signal receiving end E5 and power switch 40
Electrical connection, temperature signal output end E6 are electrically connected with hardware protection module 30 and microcontroller 10 respectively；Voltage acquisition unit 21
For acquiring the input voltage signal of power switch 40 and the output voltage signal of power switch 40, and by input voltage signal and
Output voltage signal is sent to microcontroller 10；Current acquisition unit 22 is used to acquire the first current signal of power switch 40,
And the first current signal is sent to microcontroller 10；Temperature collecting cell 23 is used to acquire the first temperature signal of power switch
With second temperature signal, and the first temperature signal and second temperature signal are sent to microcontroller 10；Microcontroller 10 is used for
When input voltage signal is greater than the first default input voltage value, output voltage signal is greater than the first pre-set output voltage value, first
Current signal is greater than the first default first current value, the first temperature signal is greater than the first preset first temperature value or second temperature
When signal is greater than the first preset second temperature value, the first driving signal is not exported to power switch 40；Wherein, the first temperature signal
For the temperature of power switch 40；Second temperature signal is the temperature of 40 local environment of power switch.
Illustratively, voltage acquisition unit 21 can for example acquire input electricity of the power switch 40 when powering on detection-phase
Pressure signal and output voltage signal, temperature collecting cell 23 can for example acquire power switch 40 and power on the first of detection-phase
Temperature signal and second temperature signal.Microcontroller 10 according to power on the input voltage signal of detection-phase, output voltage signal,
First temperature signal and second temperature signal are to determine whether send the first driving signal to power switch 40, to ensure that power is opened
It is whether safe before conducting to close 40.Specifically, working as input voltage signal, output voltage signal, the first temperature signal and second
When any one signal value in temperature signal is greater than its corresponding preset value, microcontroller 10 is not to the output of power switch 40 the
One driving signal, so that power switch is not turned on, it is ensured that the safety of power switch 40.
Illustratively, voltage acquisition unit 21 can for example acquire input voltage of the power switch 40 at the soft start stage
Signal and output voltage signal, current acquisition unit 22 can for example acquire first electricity of the power switch 40 at the soft start stage
Signal is flowed, temperature collecting cell 23 can for example acquire power switch 40 in first temperature signal in soft start stage and the second temperature
Spend signal.Microcontroller 10 is according to the input voltage signal in soft start stage, output voltage signal, the first current signal, first
Temperature signal and second temperature signal are to determine whether send the first driving signal to power switch 40, to ensure power switch 40
It is whether safe in the soft start stage.Specifically, working as input voltage signal, output voltage signal, the first current signal, the first temperature
When any one value detection signal in signal and second temperature signal is greater than its corresponding preset value, microcontroller 10 is not to function
Rate switch 40 exports the first driving signal, so that power switch 40 turns off, it is ensured that the safety of power switch 40.
Illustratively, voltage acquisition unit 21 can for example acquire input voltage letter of the power switch 40 in conducting phase
Number and output voltage signal, current acquisition unit 22 can for example acquire power switch 40 in conducting phase the first electric current letter
Number, temperature collecting cell 23 can for example acquire first temperature signal and second temperature letter of the power switch 40 in conducting phase
Number.Microcontroller 10 is believed according to the input voltage signal of conducting phase, output voltage signal, the first current signal, the first temperature
Number and second temperature signal to determine whether send the first driving signal to power switch 40, to ensure that power switch 40 is being connected
Whether the stage is safe.Specifically, when input voltage signal, output voltage signal, the first current signal, the first temperature signal and the
When any one signal value in two temperature signals is greater than its corresponding preset value, microcontroller 10 is not exported to power switch 40
First driving signal, so that power switch 40 turns off, it is ensured that the safety of power switch 40.
On the basis of above scheme, optionally, with continued reference to Fig. 2, microcontroller 10 further includes protection signal receiving end
HH, hardware protection module 30 further include protection signal output end II, protection signal receiving end HH and protection signal output end II electricity
Connection；Hardware protection module 30 further includes delay unit 31；Delay unit 31 includes time delayed signal output end MM, microcontroller 10
It further include time delayed signal receiving end NN, time delayed signal receiving end NN is electrically connected with time delayed signal output end MM；Voltage acquisition unit
21 are also used to input voltage signal and output voltage being sent to hardware protection module；Current acquisition unit 22 is also used to first
Current signal is sent to hardware protection module 30；Temperature collecting cell 23 is also used to the first temperature signal and second temperature signal
It is sent to hardware protection module 30；Hardware protection module 30 is greater than the second default input voltage when input voltage signal for judging
Value, output voltage signal are greater than the second pre-set output voltage value, the first current signal is greater than the second default first current value, first
When temperature signal is greater than the second preset first temperature value or second temperature signal greater than the second preset second temperature value, pass through
It protects signal output end MM to send stop signal and sends stopping letter to microcontroller 10 and by the second driving signal output end DD
Number to power switch 40；Hardware protection module 30 is also used to be delayed after the 4th time by delay unit 31, exports open signal
To microcontroller 10, controls microcontroller 10 and continue to send the first driving signal to power switch 10.Meanwhile hardware protection module
30 can also send stop signal to microcontroller 10, so that microcontroller will not continue to send the first driving signal to power switch
40, reduce power consumption.When the second voltage signal of power switch 40 drops to second voltage preset value, the first current signal drops to
When first electric current preset value and second temperature signal drop to second temperature preset value, the second driving signal is continued to output to power
Switch 40, while hardware protection module 30 is delayed after the 4th time again by delay unit 31, sends signal to microcontroller 10
So that microcontroller 10 continues to send the first driving signal to power switch 40, since power switch 40 is according to the first driving signal
It is connected with the second driving signal, so to microcontroller after hardware protection module 30 was delayed for four time by delay unit 31 again
Device 10 send signal so that microcontroller 10 continue send the first driving signal to power switch 40, can further keep power
Switch 40 is closed, and power switch 40 is further protected.
Wherein, the first default input voltage value for example can be equal with the second default input voltage value, the first default output
Voltage value for example can be equal with the second pre-set output voltage value, and the first default first current value for example can be with second default the
One current value is equal, and the first preset first temperature value for example can be equal with the second preset first temperature value, and first default second
Temperature value for example can be equal with the second preset second temperature value.
Specifically, hardware protection module 30 for example can by setting over-voltage, overcurrent and excess temperature output threshold value, i.e., second
Default input voltage value, the second pre-set output voltage value, the second default first current value, the second preset first temperature value and second
Preset second temperature value, when input voltage signal is greater than the second default input voltage value, output voltage signal is greater than second and presets
Output voltage values, the first current signal are greater than the second default first current value, the first temperature signal is greater than the second default first temperature
When angle value or second temperature signal are greater than the second preset second temperature value, quickly export the second driving signal to power and open
40 are closed, at this point, the second driving signal is off signal, turns off power switch 40 quickly, so the embodiment of the present invention passes through
Be arranged hardware protection module, can quickly control power switch 40 shutdown, avoid power switch 40 due to excess temperature, over-voltage or
It is damaged when overcurrent, preferably protects power switch 40.When the input voltage signal of power switch 40 drop to second preset it is defeated
Enter voltage value, output voltage signal drops to the second pre-set output voltage value, the first current signal drops to second default first
Current value, the first temperature signal drop to the second preset first temperature value and second temperature signal drops to the second default second temperature
When angle value, the second driving signal is continued to output to power switch 40, while hardware protection module 30 is prolonged again by delay unit 31
When the 4th time after, send signal to microcontroller 10 so that microcontroller 10 continues to send the first driving signal to power switch
40, since power switch 40 is connected according to the first driving signal and the second driving signal, so when hardware protection module 30 passes through
Delay unit 31, which was delayed again after the 4th time, sends signal to microcontroller 10 so that microcontroller 10 continues to send the first driving
Signal can further ensure that power switch 40 is closed, further protect power switch 40 to power switch 40.
On the basis of above scheme, optionally, with continued reference to Fig. 2, microcontroller 10 include: time acquisition unit 13,
Timing unit 11 and processing unit 12；Timing unit 11 includes control signal receiving end AA and time output end FF；Processing unit
13 include time receiving end GG and the first driving signal output end BB, and time receiving end GG is electrically connected with time output end FF；When
Between acquisition unit 13 include the time acquisition receiving end Z1 and the time acquire output end Z2；Time acquires receiving end Z1 and power switch
40 electrical connections, time acquisition output end Z2 are electrically connected with processing unit 12；In the conducting phase of power switch 40, microcontroller 10
Time acquisition unit 13 be used to acquire the continuous working period of power switch 40, and continuous working period is sent to microcontroller
The processing unit 12 of device 10；The processing unit 12 of microcontroller 10 is used to judge the continuous working period of power switch 40, is greater than
Default continuous working period then stops sending the first driving signal to power switch 40；Timing unit 11 is for recording control signal
Receiving time, and receiving time is sent to the processing unit 12 of microcontroller 10；In the closed stage of power switch 40, place
Reason unit 12 is used to calculate the time difference of the receiving time of current control signal and the receiving time of upper control signal, if greatly
When default receiving time value, the first driving signal is exported to power switch 40.
Specifically, record the receiving time of each secondary control signal by timing unit 11, and by each secondary control signal
Receiving time be sent to processing unit 12, processing unit 12 calculates the time for this time receiving control signal and last control is believed
Number reception control signal time difference, if time difference is greater than the default receiving time value that is arranged in advance, to power
Switch 40 exports the first driving signal；If time difference is less than the default receiving time value being arranged in advance, illustrate power switch
The time of 40 last time starting and the time interval that this starts are short, then do not export the first driving signal to power switch 40, so that
Power switch 40 has the sufficient time to radiate, and further protects power switch 40.
By the way that the time acquisition unit 13 that the continuous working period in later stage is connected for acquiring power switch 40 is arranged,
And continuous working period is sent to processing unit 12, when processing unit 12 judges that continuous working period is greater than default continue working
Between when, stop exporting the first driving signal to power switch 40 so that power switch 40 stops working further protecting power
Switch 40 further ensures the safety of electronic RELAY devices, increases the service life of electronic RELAY devices.
Optionally, in startup stage, microcontroller 10 is used for according to control signal, with third time output drive signal,
Until reaching the first driving signal；Microcontroller 10 is also used to judge when input voltage signal, output voltage signal, the first electric current
When any one signal value in signal, the first temperature signal and second temperature signal is greater than its corresponding preset value, microcontroller
The adjustment of device 10 is with the numerical value of third time output drive signal, until input voltage signal, output voltage signal, the first electric current letter
Number, all signal values in the first temperature signal and second temperature signal be respectively less than its corresponding preset value, it is ensured that power is opened
Close 40 safety.
The technical program, in startup stage by adjusting with the output valve of third time, so that power switch is in starting rank
Duan Zengjia interval time, power switch is further protected, further ensure the safety of electronic RELAY devices, increases electronics
The service life of relay.
On the basis of above scheme, optionally, with continued reference to Fig. 2, microcontroller 10 further includes counting unit 14；It counts
Unit 14 includes counting collection terminal Z3 and terminal count output Z4；Processing unit 12 further includes counting receiving end Z5；Count collection terminal
Z3 is electrically connected with power switch 40, and terminal count output Z4 is electrically connected with receiving end Z5 is counted, and counting unit 16 is for acquiring power
The opening times of switch 40, and opening times are sent to processing unit 12；Processing unit 12 is for judging that opening times are greater than
When default opening times, stop sending the first driving signal to power switch 40.
The technical program by the way that the counting unit for acquiring power switch opening times is arranged, and opening times is sent out
It send to processing unit, when processing unit judges that opening times are greater than default opening times, stops exporting the first drive to power switch
Dynamic signal further protects power switch so that power switch stops working, and further ensures electronic RELAY devices
Safety, increases the service life of electronic RELAY devices.On the basis of above scheme, optionally, with continued reference to Fig. 2, electronics relay
Device device further include: memory module 60；Memory module 60 is used to store date of manufacture and the production firm of electronic RELAY devices
Information；Memory module 60 is also used to be spaced the 5th time acquisition signal acquisition value, and signal acquisition value is stored.
Wherein, memory module 60 for example can store the parameter of each device of electronic RELAY devices, its date of manufacture and
Production firm's information etc., memory module 60 can also acquire 10 received signal collection value of microcontroller at interval of the 5th time,
And signal acquisition value is stored so that follow-up work maintenance personnel consults data.In addition, memory module 60 also can
Fault message when breaking down to power switch 40 stores, and is conducive to follow-up work personnel to electronic relay failure mould
Type acquisition, analysis of failure cause etc..
On the basis of above scheme, optionally, with continued reference to Fig. 2, electronic relay protective device further includes display mould
Block 70；Display module 70 is electrically connected with microcontroller 10, for believing input voltage signal, output voltage signal, the first electric current
Number, the first temperature signal and second temperature signal shown.Further, it is also possible to show each device of electronic relay operating status
The date of manufacture and production firm's information etc. of part parameter and electronic RELAY devices.
Wherein, microcontroller 10 can by bus, such as: the buses such as CAN, LIN or UART, by value detection signal, electricity
The working condition of electric relay device or the fault message of electronic RELAY devices are sent to display module 70, by showing mould
70 pairs of detection signals of block are shown, so that staff checks.
The technical program promotes man-machine interaction, is conducive to electronic relay working condition by the way that display module is arranged
Shown and assisted anomaly analysis and troubleshooting；By setting information storage unit, be conducive to electronic RELAY devices
The analysis etc. of failure cause.
On the basis of above scheme, optionally, Fig. 3 is another electronic RELAY devices provided in an embodiment of the present invention
Structural schematic diagram, referring to Fig. 3, electronic relay protective device further include: first protection circuit 110, second protect circuit 120
Circuit 130 is protected with third；Wherein, the first protection circuit 110 is located at the detection sub- Q1 of power input terminal and power switch 40
Between；Third protects circuit 130 to be located between detection power output connecting terminal Q2 and power switch 40；Second protection circuit
120 are electrically connected with power switch 40.First protection circuit 110, second protect circuit 120 and third protection circuit 130 be used for into
One step protects power switch 40, avoids damage of the signals such as lightning stroke, surge to power switch 40.
Optionally, with continued reference to Fig. 2, electronic relay protective device further includes that power supply module 140 and programming and debugging connect
Mouth 150.Power supply module 140 is electrically connected with microcontroller 10, hardware protection device 30 etc. respectively, for for microcontroller 10, hard
Part protective device 30 is powered.Programming and debugging interface 150 are electrically connected with microcontroller 10, for programming to microcontroller 10
And debugging.
Optionally, electronic relay protective device further includes logical transition module (not shown), controls signal wiring
Terminal QQ is electrically connected by logical transition module with microcontroller 10, and logical transition module will be for that will control the sub- QQ of signal terminal
Received control signal carries out level conversion, so as to subsequent use.
To sum up, each working stage of electronic RELAY devices is described in detail in the embodiment of the present invention, and Fig. 4 is this
The work flow diagram for the electronic RELAY devices that inventive embodiments provide.
Technical solution provided in an embodiment of the present invention, to electronic RELAY devices each working stage protection, it is ensured that
Electronic RELAY devices stable, safe and lasting work.
Based on same inventive concept, the embodiment of the invention also provides a kind of guard method of electronic RELAY devices,
The guard method of the electronic RELAY devices is realized based on electronic RELAY devices described above.Fig. 5 is implementation of the present invention
A kind of flow chart of the guard method for electronic RELAY devices that example provides, the guard method of electronic RELAY devices, comprising:
S1, microcontroller are believed according to the control signal of control signal receiving end input to the first driving of power switch output
Number；
The signal acquisition value that S2, hardware protection module are inputted according to first detection signal input terminal is to power switch output the
Two driving signal.
The first driving that the guard method of electronic RELAY devices provided in an embodiment of the present invention is sent by microcontroller
The second driving signal that signal and hardware protection module are sent controls the on or off of power switch together, due to hardware protection
Rapidly switching off for power switch may be implemented in module, it is ensured that stable, the safe and lasting work of electronic RELAY devices.
On the basis of above scheme, optionally, microcontroller according to control the received control signal of signal receiving end to
Power switch exports the first driving signal, comprising:
Voltage acquisition unit acquires the input voltage signal of power switch and the output voltage signal of power switch, and will be defeated
Enter voltage signal and output voltage signal is sent to microcontroller；
Current acquisition unit acquires the first current signal of power switch, and the first current signal is sent to microcontroller
Device；
Temperature collecting cell acquires the first temperature signal and second temperature signal of power switch, and by the first temperature signal
Microcontroller is sent to second temperature signal；
When input voltage signal less than the first default input voltage value, output voltage signal less than the first pre-set output voltage
Value, the first current signal are less than the first default first current value, the first temperature signal less than the first preset first temperature value and the
When two temperature signals are less than the first preset second temperature value, the first driving signal is exported to power switch；
Wherein, the first temperature signal is the temperature of power switch；Second temperature signal is the temperature of power switch local environment
Degree.
The technical program acquires the output of the input voltage signal and power switch of power switch by voltage acquisition unit
Voltage signal, current acquisition unit acquire the first current signal of power switch, and temperature collecting cell acquires the temperature of power switch
The temperature of degree and power switch local environment, and input voltage signal, output voltage signal, the first current signal, power are opened
The temperature of pass and the temperature of power switch local environment are sent to microcontroller, and microcontroller judges to be less than when input voltage signal
First default input voltage value, output voltage signal are pre- less than first less than the first pre-set output voltage value, the first current signal
If the first current value, the first temperature signal are less than the first preset first temperature value and second temperature signal less than first default second
When temperature value, the first driving signal just is exported to power switch, it is ensured that the safety of power switch 40.
On the basis of above scheme, optionally, the letter that hardware protection module is inputted according to first detection signal input terminal
Number collection value is exported to power switch before the second driving signal, comprising:
Input voltage signal and output voltage signal are sent to hardware protection module by voltage acquisition unit；
First current signal is sent to hardware protection module by current acquisition unit；
First temperature signal and second temperature signal are sent to hardware protection module by temperature collecting cell；
When input voltage signal is less than default input voltage value, output voltage signal is less than pre-set output voltage signal, the
One current signal is less than default first current signal, the first temperature signal is less than preset first temperature signal and second temperature signal
When less than preset second temperature signal, hardware protection module exports the second driving signal to power switch；
When input voltage signal is greater than the second default input voltage value, output voltage signal is greater than the second pre-set output voltage
Value, the first current signal are greater than the second default first current value, the first temperature signal is greater than the second preset first temperature value or
When second temperature signal is greater than the second preset second temperature value, hardware protection module is sent by protection signal output end stops letter
Number stop signal is sent to power switch to microcontroller and by the second driving signal output end；
Hardware protection module is delayed after the 4th time by delay unit, and output open signal to microcontroller controls micro-
Controller continues to send the first driving signal to power switch.
The technical program ensures that electronics relay since hardware protection module can quickly switch-off power switch
Stable, the safe and lasting work of device device.
On the basis of above scheme, optionally, microcontroller according to control the received control signal of signal receiving end to
Power switch exports the first driving signal, comprising:
Timing unit record controls the receiving time of signal, and receiving time is sent to the processing unit of microcontroller；
Processing unit calculates the time difference of the receiving time of current control signal and the receiving time of upper control signal,
And when time difference is greater than default receiving time value, the first driving signal is exported to power switch；
Hardware protection module is exported according to the signal acquisition value that first detection signal receiving end inputs to the power switch
After second driving signal, comprising:
The continuous working period of the time acquisition unit acquisition power switch of microcontroller, and continuous working period is sent
To the processing unit of microcontroller；
When the continuous working period of power switch is greater than default continuous working period, the processing unit of microcontroller then stops
Only first driving signal is exported to power switch.
The technical program further ensures the safety of electronic RELAY devices, extends the longevity of electronic RELAY devices
Life.
On the basis of above scheme, optionally, the guard method of electronic RELAY devices further include:
Display module is warm by input voltage signal, output voltage signal, the first current signal, the first temperature signal and second
Degree signal is shown.
The technical program promotes man-machine interaction, is conducive to electronic relay working condition by the way that display module is arranged
Display and abnormality processing.
Electronic RELAY devices provided in an embodiment of the present invention can be applied in electronic equipment, i.e., the electronic equipment includes
Electronic RELAY devices described in above-described embodiment.Electronic equipment for example may include battery pack main switch, automobile starter, vapour
Vehicle block terminal etc.；The electronic equipment can also be applied to industrial automation producing line.
Illustratively, when electronic equipment is battery pack main switch, setting electricity provided in an embodiment of the present invention in battery pack
Electric relay device can be load supplying by the electronic RELAY devices in battery pack.
Illustratively, when electronic equipment is battery pack, what is connect with electronic equipment is also battery pack, then two battery packs can
To realize the reception and transmission of mutual electric signal by electronic RELAY devices.
Note that above are only exemplary embodiments and institute's application technology principle of the invention.It will be appreciated by those skilled in the art that
The invention is not limited to the specific embodiments described herein, be able to carry out for a person skilled in the art it is various it is apparent change,
Adjustment and substitution are without departing from protection scope of the present invention.Therefore, although by above embodiments to the present invention carried out compared with
For detailed description, but the present invention is not limited to the above embodiments only, without departing from the inventive concept, can be with
Including more other equivalent embodiments, and the scope of the invention is determined by the scope of the appended claims.
Claims (12)
1. a kind of electronic RELAY devices, which is characterized in that including microcontroller, power switch, signal acquisition module and hardware
Protective module；
The microcontroller includes control signal receiving end and the first driving signal output end；The signal acquisition module includes inspection
Survey signal output end；The hardware protection module includes first detection signal input terminal and the second driving signal output end；
Wherein, the control signal receiving end with control signal terminal be electrically connected, first driving signal output end and
Power switch electrical connection, the microcontroller are used for according to the received control signal of control signal receiving end to described
Power switch exports the first driving signal；
The first detection signal input terminal is electrically connected with the detection signal output end, second driving signal output end with
The power switch electrical connection, the hardware protection module according to the signal that the first detection signal input terminal inputs for adopting
Set value exports the second driving signal to the power switch.
2. electronic RELAY devices according to claim 1, which is characterized in that the signal acquisition module includes: voltage
Acquisition unit, current acquisition unit and temperature collecting cell；
The voltage acquisition unit includes voltage signal receiving end and voltage signal output end；The current acquisition unit includes electricity
Flow signal receiving end and current signal output end；The temperature collecting cell includes temperature signal receiving end and temperature signal output
End；
The voltage signal receiving end is electrically connected with the power switch, the voltage signal output end respectively with the hardware package
Protect module and microcontroller electrical connection；
The current signal receiving end is electrically connected with the power switch, the current signal output end respectively with the hardware package
Protect module and microcontroller electrical connection；
The temperature signal receiving end is electrically connected with the power switch, the temperature signal output end respectively with the hardware package
Protect module and microcontroller electrical connection；
The voltage acquisition unit is used to acquire the input voltage signal of the power switch and the output electricity of the power switch
Signal is pressed, and the input voltage signal and the output voltage signal are sent to the microcontroller；
The current acquisition unit is used to acquire the first current signal of the power switch, and first current signal is sent out
It send to the microcontroller；
The temperature collecting cell is used to acquire the first temperature signal and second temperature signal of the power switch, and will be described
First temperature signal and the second temperature signal are sent to the microcontroller；
The microcontroller is used for, and the input voltage signal is greater than the first default input voltage value, the output voltage signal
It is greater than the first default first current value, first temperature letter greater than the first pre-set output voltage value, first current signal
When number being greater than the first preset first temperature value or the second temperature signal and being greater than the first preset second temperature value, not to described
Power switch exports first driving signal；
Wherein, first temperature signal is the temperature of the power switch；The second temperature signal is the power switch
The temperature of local environment.
3. electronic RELAY devices according to claim 2, which is characterized in that the microcontroller further includes protection signal
Receiving end, the hardware protection module further include protection signal output end, the protection signal receiving end and the protection signal
Output end electrical connection；The hardware protection module further includes delay unit；The delay unit includes time delayed signal output end, institute
Stating microcontroller further includes time delayed signal receiving end, and the time delayed signal receiving end is electrically connected with the time delayed signal output end；
The voltage acquisition unit is also used to the input voltage signal and the output voltage signal being sent to the hardware
Protective module；
The current acquisition unit is also used to first current signal being sent to the hardware protection module；
The temperature collecting cell is also used to first temperature signal and the second temperature signal being sent to the hardware
Protective module；
For the hardware protection module for judging, the input voltage signal is greater than the second default input voltage value, the output
Voltage signal is greater than the second pre-set output voltage value, first current signal is greater than the second default first current value, described the
One temperature signal is greater than the second preset first temperature value or the second temperature signal is greater than the second preset second temperature value
When, stop signal is sent to the microcontroller and by second driving signal output by the protection signal output end
End sends stop signal to the power switch；When the hardware protection module is also used to through delay unit delay the 4th
Between after, export open signal to the microcontroller, control the microcontroller and continue to send first driving signal to institute
State power switch.
4. electronic RELAY devices according to claim 1, which is characterized in that the microcontroller includes: time acquisition
Unit, timing unit and processing unit；
The timing unit includes the control signal receiving end and time output end；The processing unit includes time receiving end
With first driving signal output end, the time receiving end is electrically connected with the time output end；
The time acquisition unit includes acquiring receiving end and time acquisition output end the time；The time acquisition receiving end and institute
Power switch electrical connection is stated, the time acquisition output end is electrically connected with the processing unit；
In the conducting phase of the power switch, the time acquisition unit of the microcontroller is for acquiring the power switch
Continuous working period, and the continuous working period is sent to the processing unit of the microcontroller；The microcontroller
Processing unit is used to judge the continuous working period of the power switch, then stops greater than default continuous working period to the function
Rate switch sends first driving signal；
The timing unit is used to record the receiving time of the control signal, and the receiving time is sent to the micro-control
The processing unit of device processed；
In the closed stage of the power switch, the processing unit is used to calculate the receiving time and upper one of current control signal
When controlling the time difference of the receiving time of signal greater than default receiving time value, Xiang Suoshu power switch output described first is driven
Dynamic signal.
5. electronic RELAY devices according to claim 4, which is characterized in that the microcontroller further includes counting list
Member；
The counting unit includes counting collection terminal and terminal count output；The processing unit further includes counting receiving end；It is described
It counts collection terminal to be electrically connected with the power switch, the terminal count output is electrically connected with the counting receiving end；The counting
Unit is used to acquire the opening times of the power switch, and the opening times are sent to the processing unit；The place
When reason unit is for judging that the opening times are greater than default opening times, stop driving to power switch transmission described first
Dynamic signal.
6. electronic RELAY devices according to claim 1, which is characterized in that further include: memory module；The storage mould
Block is used to store date of manufacture and the production firm's information of the electronic RELAY devices；
The memory module is also used to be spaced the 5th time acquisition signal acquisition value, and the signal acquisition value is deposited
Storage.
7. electronic RELAY devices according to claim 2, which is characterized in that further include: display module；
The display module is electrically connected with the microcontroller, and the display module is used for the input voltage signal, described
Output voltage signal, first current signal, first temperature signal and the second temperature signal are shown.
8. a kind of guard method of electronic RELAY devices is based on the described in any item electronic RELAY devices of claim 1-7
It realizes；It is characterised by comprising:
The microcontroller drives according to the received control signal of control signal receiving end to power switch output first
Dynamic signal；
The signal acquisition value that the hardware protection module is inputted according to the first detection signal input terminal is to the power switch
Export the second driving signal.
9. the guard method of electronic RELAY devices according to claim 8, which is characterized in that microcontroller is according to control
The received control signal of signal receiving end exports the first driving signal to power switch, comprising:
The voltage acquisition unit acquires the input voltage signal of the power switch and the output voltage letter of the power switch
Number, and the input voltage signal and the output voltage signal are sent to the microcontroller；
The current acquisition unit acquires the first current signal of the power switch, and first current signal is sent to
The microcontroller；
The temperature collecting cell acquires the first temperature signal and second temperature signal of the power switch, and by described first
Temperature signal and the second temperature signal are sent to the microcontroller；
When the input voltage signal presets output less than first less than the first default input voltage value, the output voltage signal
Voltage value, first current signal default less than first less than the first default first current value, first temperature signal the
When one temperature value and the second temperature signal are less than the first preset second temperature value, Xiang Suoshu power switch output described first
Driving signal；
Wherein, first temperature signal is the temperature of the power switch；The second temperature signal is the power switch
The temperature of local environment.
10. the guard method of electronic RELAY devices according to claim 9, which is characterized in that hardware protection module root
The second driving signal is exported to the power switch according to the signal acquisition value of first detection signal input terminal input, comprising:
The input voltage signal and the output voltage signal are sent to the hardware protection mould by the voltage acquisition unit
Block；
First current signal is sent to the hardware protection module by the current acquisition unit；
First temperature signal and the second temperature signal are sent to the hardware protection mould by the temperature collecting cell
Block；
Believe when the input voltage signal is less than default input voltage value, the output voltage signal less than pre-set output voltage
Number, first current signal is less than default first current signal, first temperature signal is less than preset first temperature signal
When being less than preset second temperature signal with the second temperature signal, the hardware protection module is to power switch output the
Two driving signal；
When the input voltage signal is greater than the second default input voltage value, the output voltage signal is greater than the second default output
Voltage value, first current signal are greater than the second default first current value, first temperature signal is greater than second default the
When one temperature value or the second temperature signal are greater than the second preset second temperature value, the hardware protection module passes through institute
Protection signal output end transmission stop signal is stated to stop to the microcontroller and by second driving signal output end transmission
Stop signal is to the power switch；
The hardware protection module is delayed after the 4th time by delay unit, output open signal to the microcontroller, control
It makes the microcontroller and continues to send first driving signal to the power switch.
11. the guard method of electronic RELAY devices according to claim 8, which is characterized in that microcontroller is according to control
The received control signal of signal receiving end processed exports the first driving signal to power switch, comprising:
The timing unit records the receiving time of the control signal, and the receiving time is sent to the microcontroller
Processing unit；
The processing unit calculates the time difference of the receiving time of current control signal and the receiving time of upper control signal,
And when the time difference is greater than default receiving time value, Xiang Suoshu power switch exports first driving signal；
Hardware protection module exports second to the power switch according to the signal acquisition value that first detection signal receiving end inputs
After driving signal, comprising:
The time acquisition unit of the microcontroller acquires the continuous working period of the power switch, and continues working described
Time is sent to the processing unit of the microcontroller；
When the continuous working period of the power switch is greater than default continuous working period, the processing unit of the microcontroller
Then stop exporting first driving signal to the power switch.
12. the guard method of electronic RELAY devices according to claim 9, which is characterized in that further include:
Display module is by the input voltage signal, the output voltage signal, first current signal, first temperature
Signal and the second temperature signal are shown.
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