CN108418177B - Arc extinguishing type protection device - Google Patents
Arc extinguishing type protection device Download PDFInfo
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- CN108418177B CN108418177B CN201810623096.5A CN201810623096A CN108418177B CN 108418177 B CN108418177 B CN 108418177B CN 201810623096 A CN201810623096 A CN 201810623096A CN 108418177 B CN108418177 B CN 108418177B
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- 230000007246 mechanism Effects 0.000 claims abstract description 69
- 238000001514 detection method Methods 0.000 claims abstract description 28
- 238000012360 testing method Methods 0.000 claims description 37
- 230000006698 induction Effects 0.000 claims description 35
- 238000004146 energy storage Methods 0.000 claims description 33
- 238000004891 communication Methods 0.000 claims description 12
- 230000003287 optical effect Effects 0.000 claims description 12
- 230000005674 electromagnetic induction Effects 0.000 claims description 3
- 238000013016 damping Methods 0.000 description 6
- 238000010586 diagram Methods 0.000 description 6
- 230000005611 electricity Effects 0.000 description 5
- 238000009434 installation Methods 0.000 description 5
- 238000000034 method Methods 0.000 description 5
- 238000012544 monitoring process Methods 0.000 description 5
- 230000008569 process Effects 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 239000003990 capacitor Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
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- 238000012986 modification Methods 0.000 description 2
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- 239000000126 substance Substances 0.000 description 2
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 238000009435 building construction Methods 0.000 description 1
- 238000013480 data collection Methods 0.000 description 1
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- 230000005236 sound signal Effects 0.000 description 1
Classifications
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/08—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
- H02H3/093—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current with timing means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/0007—Details of emergency protective circuit arrangements concerning the detecting means
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H1/00—Details of emergency protective circuit arrangements
- H02H1/06—Arrangements for supplying operative power
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
- H02H3/042—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned combined with means for locating the fault
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02H—EMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
- H02H3/00—Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
- H02H3/02—Details
- H02H3/04—Details with warning or supervision in addition to disconnection, e.g. for indicating that protective apparatus has functioned
- H02H3/044—Checking correct functioning of protective arrangements, e.g. by simulating a fault
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Abstract
The invention discloses an arc extinguishing type protection device, which comprises a first data acquisition mechanism, a control chip and a thyristor, wherein the first data acquisition mechanism is connected with the control chip; the first data acquisition mechanism comprises a first current detection part, a first voltage detection part and a timer; the first current detection part sends the collected line current to the control chip; the first voltage detection part sends the acquired line voltage to the control chip; the timer sends the recorded first time for collecting the line current and the second time for collecting the line voltage to the control chip; the control chip sends control instructions generated according to the line current, the line voltage, the first time and the second time to the thyristor so as to control the thyristor to be opened or closed. By adopting the technical scheme of the invention, the judging error of short circuit or overload of the circuit can be reduced, misoperation is effectively prevented, and potential safety hazard is reduced.
Description
Technical Field
The invention relates to the technical field of arc extinguishing devices, in particular to an arc extinguishing type protection device.
Background
In the existing power supply system, when load current is overlarge, particularly under the condition of short circuit of load output, current in a power supply loop rises rapidly at the moment, and electricity safety accidents are easily caused, so that protection devices for detecting the overcurrent phenomenon are added in the power supply loop by electric equipment, and the power supply loop is protected.
At present, an electronic protection device is often used for protecting an electric loop, a mutual inductor is used for collecting the current of a line, the current is compared with a set value, and when the current is abnormal, a microprocessor sends out a signal to enable an electronic release to drive an operating mechanism to act.
However, in the prior art, only the line current is used as a judging parameter for controlling the operation of the electronic protection device, the data is relatively single, the error is high, and when the electronic protection device plays a role in protection, a large amount of electric arcs are generated, so that substances with low surrounding fire resistance points are burnt, the occurrence of fire is not completely stopped, and the potential safety hazard of the electronic protection device is high.
Disclosure of Invention
The invention aims to provide an arc extinguishing type protection device, which is used for solving the problems that in the prior art, only line current is used as a judging parameter for controlling the action of an electronic type protection device, the data is relatively single, the error is high, a large amount of electric arcs are generated when the electronic type protection device plays a role in protection, substances with low surrounding fire resistance points are burnt, the occurrence of fire is not completely stopped, the potential safety hazard of the electronic type protection device is high, and the practicability is poor.
In order to achieve the above purpose, the present invention provides an arc extinguishing type protection device, which includes a first data acquisition mechanism, a control chip and a thyristor;
the first data acquisition mechanism comprises a first current detection component and a first voltage detection component;
the control chip comprises a control chip and a timer;
the first current detection component, the first voltage detection component, the timer and the thyristor are respectively in signal connection with the control chip;
the first current detection component sends the collected line current to the control chip;
the first voltage detection part sends the acquired line voltage to the control chip;
the timer sends a first time for receiving the line current and a second time for receiving the line voltage to the control chip;
and the control chip sends control instructions generated according to the line current, the line voltage, the first time and the second time to the thyristor so as to control the thyristor to be opened or closed.
Further, the arc extinguishing type protection device further comprises a test circuit, a second data acquisition mechanism and an alarm;
the second data acquisition mechanism comprises a second current acquisition component and a second voltage acquisition component;
the test circuit is electrically connected with the thyristor;
the second current acquisition component and the second voltage acquisition component are respectively connected with the test circuit through signals, and the second current acquisition component and the second voltage acquisition component are also respectively connected with the control chip through signals;
the alarm is in signal connection with the control chip;
the second current acquisition component sends the acquired test circuit current to the control chip;
the second voltage acquisition component sends the acquired test circuit voltage to the control chip;
and the control chip sends a first alarm signal generated according to the test circuit current and the test circuit voltage to an alarm.
Further, the arc extinguishing type protection device further comprises a photosensitive device;
the photosensitive device is in signal connection with the control chip;
the photosensitive device sends the collected optical signals to the control chip;
and the control chip sends a second alarm signal generated according to the optical signal to the alarm.
Further, the arc extinguishing type protection device further comprises a communication mechanism;
the communication mechanism is in signal connection with the control chip;
the control chip sends the received original data and/or the obtained analysis data to a server through the communication mechanism;
the raw data includes at least one of the line current, the first time, the line voltage, the second time, the test circuit current, the test circuit voltage, and the optical signal;
the analysis data includes at least one of the first alarm signal, the second alarm signal, and a third alarm signal generated from the line current, the line voltage, the first time, and the second time.
Further, the arc extinguishing type protection device further comprises a magnetic induction coil;
the magnetic induction coil is electrically connected with the control chip;
the magnetic induction coil is electrified through electromagnetic induction so as to provide power for the control chip.
Further, the arc extinguishing type protection device further comprises an energy storage power supply, a power management mechanism, a first switch and a second switch;
the magnetic induction coil is connected with the energy storage power supply through the first switch;
the energy storage power supply and the first switch are also respectively and electrically connected with the power management mechanism;
the energy storage power supply is also electrically connected with the control chip through the second switch;
the magnetic induction coil and the second switch are also respectively and electrically connected with the power management mechanism;
the power management mechanism is used for controlling the first switch to be closed or opened according to a first closing instruction or a first opening instruction generated by the detected electric quantity of the energy storage power supply so as to enable the magnetic induction coil to charge or stop charging the energy storage power supply; and controlling the second switch to be closed or opened according to a second closing instruction and a second opening instruction generated by the detected electrified state of the magnetic induction coil.
Further, the arc extinguishing type protection device further comprises a selection switch;
the selection switch is electrically connected with the control chip;
and the selection switch sends the selected voltage level to the control chip so that the control chip controls the data acquisition mechanism to switch to the corresponding voltage level.
Further, in the arc extinguishing protection device, the control chip is further configured to control the selection switch to selectively switch to a voltage level corresponding to the voltage selection command according to the voltage selection command generated by the electrified state of the magnetic induction coil.
Further, the arc extinguishing type protection device further comprises a data setting mechanism;
the data setting mechanism is in signal connection with the control chip;
the data setting mechanism sends the received acquisition parameters to the control chip so that the control chip controls the first data acquisition mechanism to acquire data according to the acquisition parameters;
the acquisition parameters comprise acquisition frequencies corresponding to different times and/or acquisition priority levels of different lines.
Further, the arc extinguishing type protection device further comprises a display mechanism;
the display mechanism is in signal connection with the control chip.
According to the arc extinguishing type protection device, the first current detection part, the first voltage detection part, the control chip, the timer and the thyristor are arranged, the first current detection part collects line current, the first voltage detection part collects line voltage, the timer records corresponding time, so that the control chip can judge whether a line is short-circuited or overloaded according to the intersecting corresponding relation of the line current, the line voltage and the time, and generate corresponding control instructions to be sent to the thyristor so as to control the thyristor to be disconnected, and the line is protected under the condition that no arc is generated. By adopting the technical scheme of the invention, the judging error of short circuit or overload of the circuit can be reduced, misoperation is effectively prevented, and potential safety hazard is reduced.
Drawings
Fig. 1 is a schematic structural diagram of an arc extinguishing device according to a first embodiment of the present invention;
fig. 2 is a schematic structural diagram of a second embodiment of the arc extinguishing device of the present invention;
fig. 3 is a schematic structural diagram of a third embodiment of the arc extinguishing device according to the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the technical solutions of the present invention will be clearly and completely described below with reference to specific embodiments of the present invention and corresponding drawings. It will be apparent that the described embodiments are only some, but not all, embodiments of the invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
The terms first, second and the like in the description and in the claims and in the above-described figures, if any, are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used may be interchanged where appropriate such that the embodiments of the present application described herein may be implemented in other sequences than those illustrated herein.
The following examples are illustrative of the invention and are not intended to limit the scope of the invention.
Example 1
Fig. 1 is a schematic structural diagram of an arc extinguishing device according to an embodiment of the present invention, as shown in fig. 1, the arc extinguishing device of the present embodiment may include a first data acquisition mechanism 101, a control chip 102 and a thyristor 103, wherein the first data acquisition mechanism 101 includes a first current detection component 1011, a first voltage detection component 1012 and a timer 1013.
In the present embodiment, the first current detection section 1011, the first voltage detection section 1012, the timer 1013, and the thyristor 103 are respectively signal-connected to the control chip 102. The first current detecting part 1011 may be a current transformer which may be used to collect line current and transmit the collected line current to the control chip 102, the first voltage detecting part 1012 may be a voltage transformer which may be used to collect line voltage and transmit the collected line voltage to the control chip 102, the timer 1013 records a corresponding time as a first time to be transmitted to the control chip 102 when the first current detecting part 1011 collects line current, and records a corresponding time as a second time to be transmitted to the control chip 102 when the first voltage collecting part collects line voltage.
After receiving the line current, the line voltage, the first time and the second time, the control chip 102 can perform cross analysis on the running state of the line according to the line current, the line voltage, the first time and the second time to judge whether the line is short-circuited or overloaded, reduce judgment errors, and generate corresponding control instructions. For example, when a short circuit occurs, the current may be large, but it may not be caused by the short circuit, but other factors, so it may be determined whether the voltage of the line is 0 at the same time, if 0, it is determined that the line is short-circuited, otherwise, the line is not short-circuited.
In this embodiment, the protection of the line by the short circuit of the line is taken as an example, and the technical scheme of the present invention is described. In order to prevent fire from occurring when the circuit is protected, in this embodiment, the thyristors 103 may be connected in series with the circuit, and in parallel with the circuit breaker, the relay, the mechanical switch, and the like, respectively. After the control chip 102 generates a control command according to the line current, the line voltage, the first time and the second time, the control command is sent to the thyristor 103 to control the thyristor 103 to be opened or closed. For example, when a short circuit occurs in a circuit, the thyristor 103 can be controlled to be disconnected, so that the time for cutting off the power supply is reduced to microsecond from the current millisecond level, and finally, only tiny arc sparks can be formed at two ends of a circuit breaker, a relay, a mechanical switch and the like, even sparks can not be seen, so that potential safety hazards such as bus voltage and current distortion, electrical fire and electric shock accidents caused by electrical short circuit are reduced to the greatest extent, and the electrical safety is ensured.
In the arc extinguishing protection device of the embodiment, by setting the first current detection component 1011, the first voltage detection component 1012, the control chip 102, the timer 1013 and the thyristor 103, and collecting the line current by the first current detection component 1011, the first voltage detection component 1012 collects the line voltage, and the timer 1013 records the corresponding time, the control chip 102 can judge whether the line is short-circuited or overloaded according to the intersecting corresponding relation of the line current, the line voltage and the time, and generate the corresponding control instruction to send to the thyristor 103, so as to control the thyristor 103 to break, thereby realizing the protection of the line under the condition that no arc is generated. By adopting the technical scheme of the invention, the judging error of short circuit or overload of the circuit can be reduced, misoperation is effectively prevented, and potential safety hazard is reduced.
Since the thyristor 103 may malfunction during use, the protection device can perform the functions of short-circuit protection or overload protection, but cannot achieve the arc extinguishing effect, and is easy to cause fire, so that the thyristor 103 needs to be detected periodically, the workload is increased for the user, and the user cannot know whether the thyristor 103 malfunctions for the first time, so that the invention further provides the following embodiments for solving the above problems.
Example 2
Fig. 2 is a schematic structural diagram of a second embodiment of the arc extinguishing device according to the present invention, as shown in fig. 2, the arc extinguishing device according to the present embodiment may further include a test circuit 104, a second data acquisition mechanism 105 and an alarm 106 on the basis of the embodiment shown in fig. 1, wherein the second data acquisition mechanism 105 includes a second current acquisition component 1051 and a second voltage acquisition component 1052, the test circuit 104 is electrically connected with the thyristor 103, the second current acquisition component 1051 and the second voltage acquisition component 1052 are respectively connected with the test circuit 104 through signals, and the second current acquisition component 1051 and the second voltage acquisition component 1052 are also respectively connected with the control chip 102 through signals, and the alarm 106 is connected with the control chip 102 through signals.
In this embodiment, the second current collecting unit 1051 may collect the test circuit current and send the collected test circuit current to the control chip 102, the second voltage collecting unit 1052 may collect the test circuit voltage and send the collected test circuit voltage to the control chip 102, the control chip 102 may analyze the operation state of the thyristor 103 according to the test circuit current and the test circuit voltage, and when the thyristor 103 is analyzed to be faulty, the generated first alarm signal is sent to the alarm 106, so that the alarm 106 sends the first alarm signal, such as a sound signal and/or an optical signal.
For example, the test circuit 104 in this embodiment may include a damping resistor, a damping capacitor, a test resistor, and a test relay, and the test line current and the test line voltage may be measured using the second current collecting section 1051 and the second voltage collecting section 1052, respectively. Specifically, the test relay may be controlled to measure and record the measurement circuit current and the measurement circuit voltage twice, respectively, with the normally open contacts open and closed, and calculate the damping resistance and the damping capacitance using the measurement circuit current and the measurement circuit voltage to determine whether the thyristor 103 has failed. If the values of the damping resistor and the damping capacitor are normal, the thyristor 103 does not fail, otherwise, the thyristor 103 fails, and after the thyristor 103 fails, measures can be quickly taken to replace the thyristor 103 so as to ensure that an arc extinguishing effect can be achieved.
In a specific implementation process, since the thyristor 103 breaks down and does not affect the opening and closing of the circuit breaker, the relay, etc., but an arc may be generated during the opening and closing of the circuit breaker, the relay, etc., as shown in fig. 2, the arc extinguishing protection device of this embodiment may further include a photosensitive device 107, where the photosensitive device 107 is in signal connection with the control chip 102, if the thyristor 103 breaks down, the photosensitive device 107 can collect a corresponding optical signal due to the arc generated during the opening and closing of the circuit breaker, the relay, etc., and the collected optical signal is sent to the control chip 102, and after the received optical signal is converted into an electrical signal by the control chip 102, the electrical signal is analyzed to determine that the thyristor 103 breaks down, and after a second alarm signal is generated, the second alarm signal is sent to the alarm 106, so that the alarm 106 sends the second alarm signal.
In order to enable the user to know the line operation condition, the thyristor 103 operation condition, and the like in real time, as shown in fig. 2, the arc extinguishing protection device of the present embodiment may further include a communication mechanism 108, where the communication mechanism 108 is in signal connection with the control chip 102.
In a specific implementation process, the control chip 102 sends the received raw data and/or the obtained analysis data to the server through the communication mechanism 108; wherein the raw data includes at least one of line current, first time, line voltage, second time, test circuit current, test circuit voltage, and optical signal; the analysis data includes at least one of a first alarm signal, a second alarm signal, and a third alarm signal generated based on line current, line voltage, first time, and second time.
For example, in this embodiment, the user may establish a communication connection with the server through a terminal such as a mobile phone or a computer, and after the server receives the first alarm signal, the second alarm signal and the second alarm signal, the first alarm signal, the second alarm signal and the second alarm signal may be sent to the terminal in time, so that the user may learn about the related fault in time and take corresponding measures. In this embodiment, after receiving the original data such as the line current, the first time, the line voltage, the second time, the test circuit current, the test circuit voltage, the optical signal, etc., the control chip 102 may send at least one of them to the server through the communication mechanism 108, so that the server may analyze according to the original data, and obtain at least one of the first alarm signal, the second alarm signal, and the third alarm signal by the server and send the first alarm signal, the second alarm signal, and the third alarm signal to the terminal.
The arc extinguishing type protection device of the embodiment can timely acquire whether the thyristor 103 breaks down or not by monitoring the running state of the thyristor 103, so that the thyristor 103 can be timely replaced when the thyristor 103 breaks down, and the arc extinguishing type protection device can still extinguish arc. And the communication mechanism 108 is arranged to send the original data and/or the analysis data to the server, so that the remote online monitoring is realized, the processing efficiency after the circuit is short-circuited or overloaded and the thyristor 103 is failed is improved, and the electricity safety is further ensured.
Example 3
Fig. 3 is a schematic structural diagram of a third embodiment of the arc extinguishing device according to the present invention, and as shown in fig. 3, the arc extinguishing device according to the present embodiment may further include a magnetic induction coil 109 based on the embodiment shown in fig. 2. The magnetic induction coil 109 is electrically connected with the control chip 102, and the magnetic induction coil 109 is electrically connected with the control chip 102 through electromagnetic induction to provide power.
For example, since the arc extinguishing type protection apparatus is usually powered by wiring on the nearby electric wires when the arc extinguishing type protection apparatus is installed, it is determined that the installation work of the arc extinguishing type protection apparatus must be installed in a manner of cooperation with a developer before building construction, and if the arc extinguishing type protection apparatus is to be installed for power supply, a great installation cost is increased for some built houses, many places are left for some people who want to install to give up installation, and the phenomena of electric leakage and overload of the old building houses are particularly serious, which is unfavorable for the overall reduction and avoidance of electric fires, therefore, in this embodiment, a magnetic induction coil 109 can be provided, and the magnetic field generated around the electric wires is utilized for power supply to the control chip 102.
In the present embodiment, the magnetic induction coil 109 may be electrically connected to a mechanism other than the control chip 102 to supply power to the mechanism other than the control chip 102, but in order to reduce wiring, it is preferable that the mechanism other than the control chip 102 is supplied with power after the control chip 102 is powered.
In the practical application process, because the circuit is overloaded or shorted, the magnetic induction coil 109 cannot be powered on, and the arc extinguishing protection device cannot work, and cannot send related data to the server, and cannot alarm, as shown in fig. 3, the arc extinguishing protection device of the embodiment may further include an energy storage power supply 110, a power management mechanism 111, a first switch 112 and a second switch 113, where the magnetic induction coil 109 is connected with the energy storage power supply 110 through the first switch 112, the energy storage power supply 110 and the first switch 112 are further electrically connected with the power management mechanism 111 respectively, and the energy storage power supply 110 is further electrically connected with the control chip 102 through the second switch 113; the magnetic induction coil 109 and the second switch 113 are also electrically connected to the power management mechanism 111, respectively.
In this embodiment, the energy storage power supply 110 may be used as a backup power supply, which may be preferably a storage battery. In this embodiment, the power management mechanism 111 can detect the electric quantity of the energy storage power supply 110, and generate a first closing instruction or a first opening instruction according to the electric quantity of the energy storage power supply 110, and control the first switch 112 to be closed or opened, so that the magnetic induction coil 109 charges or stops charging the energy storage power supply 110. For example, since the energy storage power supply 110 will consume power by itself when placed for a long time, in order to prevent the energy storage power supply 110 from overdischarging and reduce the lifetime of the energy storage power supply 110, in this embodiment, a first threshold may be preset, and when the power management mechanism 111 detects that the electric quantity of the energy storage power supply 110 is smaller than the first threshold, a first closing instruction is sent to the first switch 112, so that the magnetic induction coil 109 is connected to the energy storage power supply 110, and the energy storage power supply 110 is charged. Similarly, if the energy storage power supply 110 is overcharged, the service life of the energy storage power supply 110 is also reduced, so in this embodiment, a second threshold is further provided, and when the power management mechanism 111 detects that the electric quantity of the energy storage power supply 110 reaches the second threshold, a first opening instruction is sent to the first switch 112, so that the magnetic induction coil 109 is disconnected from the energy storage power supply 110, and charging of the energy storage power supply 110 is stopped.
In this embodiment, the power management mechanism 111 can detect the charging state of the magnetic induction coil 109, and generate a second closing instruction and a second opening instruction according to the charging state of the magnetic induction coil 109 to control the second switch 113 to be closed or opened. For example, when the power management mechanism 111 detects that the magnetic induction coil 109 is electrified, it indicates that the magnetic induction coil 109 can provide power for the control chip 102, at this time, a second open command may be generated to control the second switch 113 to open, the energy storage power supply 110 does not provide power for the control chip 102, and when the power management mechanism 111 detects that the magnetic induction coil 109 is not electrified, it indicates that the magnetic induction coil 109 cannot provide power for the control chip 102, at this time, a second close command may be generated to control the second switch 113 to close, and the energy storage power supply 110 provides power for the control chip 102.
In a specific implementation process, because the voltage levels required by different places, different electric equipment and the like are different, when the arc extinguishing type protection device is arranged, the corresponding arc extinguishing type protection device needs to be installed according to the different voltage levels, and under some special conditions, the phenomena of wrong belt and missing belt arc extinguishing type protection device possibly occur to an installer, so that the installation is blocked, and the installation efficiency is reduced.
In a specific implementation process, the first current detecting component 1011, the voltage detecting component and the like are all multifunctional components, for example, the first current detecting component and the voltage detecting component can be formed by forming a collection circuit with a plurality of voltage levels through different electrical components and a third switch, and the third switch is controlled to enable the different electrical components to be connected to form a collection circuit corresponding to the plurality of voltage levels so as to collect data for lines with different voltage levels. As shown in fig. 3, the arc extinguishing protection device of the present embodiment may further include a selection switch 114, where the selection switch 114 is electrically connected to the control chip 102, for example, a user may manually control the selection switch 114 to select a desired voltage level, and after receiving the voltage level selected by the user, the control chip 102 controls the corresponding third switch to turn on different electrical components to form a collection circuit of the desired voltage level, so as to control the data collection mechanism to switch to the corresponding voltage level, and then collect relevant data.
However, because the situation of user selection error may occur, the voltage level selected by the user does not conform to the voltage level of the line to be actually monitored, and the arc extinguishing protection device is easy to be damaged, in this embodiment, after the magnetic induction coil 109 is powered on, the control chip 102 may further determine the voltage level of the current line according to the electrified state of the magnetic induction coil 109, and generate a corresponding voltage selection instruction, so as to automatically control the selection switch 114 to select and switch to the voltage level corresponding to the voltage selection instruction, thereby improving the safety of the arc extinguishing protection device.
In one specific implementation, as shown in fig. 3, the arc extinguishing device of the present embodiment may further include a data setting mechanism 115. Wherein the data setting mechanism 115 is in signal connection with the control chip 102. In practical application, due to the fact that the electricity consumption peak period and the use objects of different lines are different, the monitoring requirements of different lines in different periods are possibly different, so that the embodiment can monitor the running condition of the lines in a targeted manner, the monitoring efficiency is improved, the running power consumption of the arc extinguishing protection device is reduced, and the like. Specifically, the user may input the relevant acquisition parameters, and send the received acquisition parameters to the control chip 102 through the data setting mechanism 115, so that the control chip 102 controls the first data acquisition mechanism 101 to acquire the relevant data according to the acquisition parameters.
For example, in this embodiment, the acquisition parameters may include, but are not limited to, acquisition frequencies corresponding to different times and/or acquisition priority levels of different lines. The time corresponding to the electricity consumption peak period of a certain line can be obtained according to practical experience, at this time, related data can be collected according to a higher collection frequency in the time period, and the related data can be collected according to a lower collection frequency in the time period instead of the electricity consumption peak period, so that the operation power consumption of the arc extinguishing protection device is reduced. The acquisition priority of different lines may also be determined according to practical experience, for example, the power supply object of line a is relatively important, and the power supply object of line B is relatively secondary, where line a may be set to acquire preferentially, and line B may be set to acquire after line a is acquired, which is not illustrated herein.
As shown in fig. 3, the arc extinguishing protection device of the present embodiment may further include a display mechanism 116, where the display mechanism 116 is in signal connection with the control chip 102. In one implementation, if the monitoring person is on site, he or she may not view the relevant data through the terminal, but may obtain the relevant data directly from the arc extinguishing device through the display mechanism 116.
While the invention has been described in detail in the foregoing general description and specific examples, it will be apparent to those skilled in the art that modifications and improvements can be made thereto. Accordingly, such modifications or improvements may be made without departing from the spirit of the invention and are intended to be within the scope of the invention as claimed.
Claims (6)
1. The arc extinguishing type protection device is characterized by comprising a first data acquisition mechanism, a control chip and a thyristor;
the first data acquisition mechanism comprises a first current detection component, a first voltage detection component and a timer;
the first current detection component, the first voltage detection component, the timer and the thyristor are respectively in signal connection with the control chip;
the first current detection component sends the collected line current to the control chip;
the first voltage detection part sends the acquired line voltage to the control chip;
the timer sends the recorded first time for collecting the line current and the second time for collecting the line voltage to the control chip;
the control chip sends control instructions generated according to the line current, the line voltage, the first time and the second time to the thyristor so as to control the thyristor to be opened or closed;
the system also comprises a test circuit, a second data acquisition mechanism and an alarm;
the second data acquisition mechanism comprises a second current acquisition component and a second voltage acquisition component;
the test circuit is electrically connected with the thyristor;
the second current acquisition component and the second voltage acquisition component are respectively connected with the test circuit through signals, and the second current acquisition component and the second voltage acquisition component are also respectively connected with the control chip through signals;
the alarm is in signal connection with the control chip;
the second current acquisition component sends the acquired test circuit current to the control chip;
the second voltage acquisition component sends the acquired test circuit voltage to the control chip;
the control chip sends a first alarm signal generated according to the test circuit current and the test circuit voltage to an alarm;
the magnetic induction coil is also included;
the magnetic induction coil is electrically connected with the control chip;
the magnetic induction coil is electrified through electromagnetic induction so as to provide power for the control chip;
the power supply system also comprises an energy storage power supply, a power supply management mechanism, a first switch and a second switch;
the magnetic induction coil is connected with the energy storage power supply through the first switch;
the energy storage power supply and the first switch are also respectively and electrically connected with the power management mechanism;
the energy storage power supply is also electrically connected with the control chip through the second switch;
the magnetic induction coil and the second switch are also respectively and electrically connected with the power management mechanism;
the power management mechanism is used for controlling the first switch to be closed or opened according to a first closing instruction or a first opening instruction generated by the detected electric quantity of the energy storage power supply so as to enable the magnetic induction coil to charge or stop charging the energy storage power supply; and controlling the second switch to be closed or opened according to a second closing instruction and a second opening instruction generated by the detected electrified state of the magnetic induction coil;
the device also comprises a selection switch;
the selection switch is electrically connected with the control chip;
and the selection switch sends the selected voltage level to the control chip so that the control chip controls the data acquisition mechanism to switch to the corresponding voltage level.
2. The arc suppressing protection apparatus of claim 1, further comprising a photosensitive device;
the photosensitive device is in signal connection with the control chip;
the photosensitive device sends the collected optical signals to the control chip;
and the control chip sends a second alarm signal generated according to the optical signal to the alarm.
3. The arc chute protection device of claim 2 further comprising a communication mechanism;
the communication mechanism is in signal connection with the control chip;
the control chip sends the received original data and/or the obtained analysis data to a server through the communication mechanism;
the raw data includes at least one of the line current, the first time, the line voltage, the second time, the test circuit current, the test circuit voltage, and the optical signal;
the analysis data includes at least one of the first alarm signal, the second alarm signal, and a third alarm signal generated from the line current, the line voltage, the first time, and the second time.
4. The arc extinguishing protection device according to claim 1, wherein the control chip is further configured to control the selection switch to selectively switch to a voltage level corresponding to a voltage selection command generated according to a charging state of the magnetic induction coil.
5. An arc suppressing protection device as in any one of claims 1-3, further comprising a data setting mechanism;
the data setting mechanism is in signal connection with the control chip;
the data setting mechanism sends the received acquisition parameters to the control chip so that the control chip controls the first data acquisition mechanism to acquire data according to the acquisition parameters;
the acquisition parameters comprise acquisition frequencies corresponding to different times and/or acquisition priority levels of different lines.
6. An arc suppressing protection device according to any one of claims 1-3, further comprising a display mechanism;
the display mechanism is in signal connection with the control chip.
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| CN201810623096.5A CN108418177B (en) | 2018-06-15 | 2018-06-15 | Arc extinguishing type protection device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201810623096.5A CN108418177B (en) | 2018-06-15 | 2018-06-15 | Arc extinguishing type protection device |
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| CN108418177B true CN108418177B (en) | 2024-02-06 |
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| CN109343651B (en) * | 2018-09-30 | 2021-01-12 | 广东爱玛车业科技有限公司 | Working voltage adjusting method, controller, instrument display module and system |
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| CN101806853A (en) * | 2010-05-07 | 2010-08-18 | 许继集团有限公司 | On-line test method and device for high-voltage thyristor |
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