CN111878846A - Pulse igniter control method, device and system and gas appliance - Google Patents
Pulse igniter control method, device and system and gas appliance Download PDFInfo
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- CN111878846A CN111878846A CN202010854370.7A CN202010854370A CN111878846A CN 111878846 A CN111878846 A CN 111878846A CN 202010854370 A CN202010854370 A CN 202010854370A CN 111878846 A CN111878846 A CN 111878846A
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23Q—IGNITION; EXTINGUISHING-DEVICES
- F23Q3/00—Igniters using electrically-produced sparks
- F23Q3/008—Structurally associated with fluid-fuel burners
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F24—HEATING; RANGES; VENTILATING
- F24C—DOMESTIC STOVES OR RANGES ; DETAILS OF DOMESTIC STOVES OR RANGES, OF GENERAL APPLICATION
- F24C3/00—Stoves or ranges for gaseous fuels
- F24C3/12—Arrangement or mounting of control or safety devices
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Abstract
The application relates to a pulse igniter control method, a pulse igniter control device, a pulse igniter control system and a gas appliance, wherein a switch device and a control device are arranged at an output circuit of the pulse igniter, after the control device controls the switch device to be closed, a closed loop is formed among the pulse igniter, the switch device and the control device, through analyzing the resistance of the closed loop, when the resistance value meets a preset resistance threshold range, the output circuit of the pulse igniter is considered to be normal, and the pulse igniter is started to run at the moment. Through the scheme, the output line of the pulse igniter can be monitored, the situation that local high temperature, other parts are damaged and even fire disasters are caused due to abnormal ignition of the output line is avoided, and the use safety of the pulse igniter is effectively improved.
Description
Technical Field
The application relates to the technical field of household appliances, in particular to a pulse igniter control method, device and system and a gas appliance.
Background
The pulse igniter, pulse igniter for short, is an electronic product which utilizes pulse principle to produce continuous instantaneous electric spark to ignite flame of gas appliance. The pulse igniter is widely applied to various gas appliances, such as a gas wall-mounted furnace, a gas water heater, a gas stove and the like.
When the pulse igniter is used and the output end circuit is dropped or disconnected, if the pulse igniter is continuously supplied with power to operate, electric sparks can be caused to appear at an off-design position, local high temperature is easily caused, explosion or other parts can be damaged, and even safety accidents such as fire disasters can be caused. Therefore, the conventional pulse igniter has a disadvantage of poor safety in use.
Disclosure of Invention
Therefore, it is necessary to provide a method, an apparatus, a system and a gas appliance for controlling a pulse igniter, which can detect the state of an output line of the pulse igniter, and prevent the pulse igniter from being powered even when the output line is dropped or disconnected, thereby effectively improving the safety of the pulse igniter.
A pulse igniter control method, comprising: when a starting instruction is received, controlling a switching device arranged between an output circuit of a pulse igniter and a control device to be closed, so that a closed loop is formed among the pulse igniter, the switching device and the control device; acquiring a resistance value of a closed loop and comparing and analyzing the resistance value with a preset resistance threshold range; and when the resistance value meets the preset resistance threshold range, controlling the pulse igniter to start and operate.
In one embodiment, after the step of obtaining the resistance value of the closed loop and comparing and analyzing the resistance value with the preset resistance threshold range, the method further includes: and when the resistance value does not meet the preset resistance threshold range, interrupting the starting operation of the pulse igniter.
In one embodiment, when the resistance value does not satisfy the preset resistance threshold range, the method further comprises: and outputting fault prompt information.
In one embodiment, the outputting the fault indication information includes: and when the resistance value is smaller than the minimum value of the preset resistance threshold range, outputting fault prompt information of short circuit of an output circuit of the pulse igniter.
In one embodiment, the outputting the fault indication information includes: and when the resistance value is larger than the maximum value of the preset resistance threshold range, outputting fault prompt information that an output line of the pulse igniter falls off.
In one embodiment, the obtaining the resistance value of the closed loop includes: acquiring a current value and a voltage value flowing through a closed loop; and analyzing according to the current value and the voltage value to obtain the resistance value of the closed loop.
A pulse igniter control device comprising: the switching device control module is used for controlling the switching device arranged between an output circuit of the pulse igniter and the control device to be closed when a starting instruction is received, so that a closed loop is formed among the pulse igniter, the switching device and the control device; the resistance value analysis module is used for acquiring the resistance value of the closed loop and comparing and analyzing the resistance value with a preset resistance threshold range; and the starting control module is used for controlling the pulse igniter to start and operate when the resistance value meets the preset resistance threshold range.
A pulse igniter control system comprises a control device, a switch device and a pulse igniter, wherein an output circuit of the pulse igniter is connected with a first end of the switch device, a second end of the switch device is connected with the control device, the control device is connected with an input end of the pulse igniter, a control end of the switch device is connected with the control device, and the control device is used for controlling the pulse igniter according to the method.
In one embodiment, the switching device is an electromagnetic relay.
In one embodiment, the pulse igniter control system further comprises an information prompting device, and the information prompting device is connected with the control device.
A gas appliance comprises the pulse igniter control system.
According to the pulse igniter control method, device and system and the gas appliance, the switch device and the control device are arranged at the output line of the pulse igniter, the closed loop is formed among the pulse igniter, the switch device and the control device after the control device controls the switch device to be closed, and the resistance of the closed loop is analyzed, so that when the resistance value meets the preset resistance threshold range, the output line of the pulse igniter is considered to be normal, and the pulse igniter is started to run. Through the scheme, the output line of the pulse igniter can be monitored, the situation that local high temperature, other parts are damaged and even fire disasters are caused due to abnormal ignition of the output line is avoided, and the use safety of the pulse igniter is effectively improved.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments or the conventional technologies of the present application, the drawings used in the descriptions of the embodiments or the conventional technologies will be briefly introduced below, it is obvious that the drawings in the following descriptions are only some embodiments of the present application, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
FIG. 1 is a schematic flow chart illustrating a method for controlling a pulse igniter according to an embodiment;
FIG. 2 is a schematic diagram of an exemplary embodiment of a control system for a pulse igniter;
FIG. 3 is a schematic flow chart of a method for controlling a pulse igniter according to another embodiment;
FIG. 4 is a schematic flow chart illustrating a method for controlling a pulse igniter according to yet another embodiment;
FIG. 5 is a schematic flow chart illustrating a method for controlling a pulse igniter according to still another embodiment;
FIG. 6 is a schematic flow chart illustrating a method for controlling a pulse igniter according to yet another embodiment;
FIG. 7 is a flow chart illustrating a method for obtaining a resistance value according to an embodiment;
FIG. 8 is a schematic diagram of an exemplary embodiment of a control device for a pulse igniter;
fig. 9 is a schematic structural diagram of a control device of a pulse igniter in another embodiment.
Detailed Description
To facilitate an understanding of the present application, the present application will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present application are illustrated in the accompanying drawings. This application may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
Referring to fig. 1, a method for controlling a pulse igniter includes steps S100, S200 and S300.
And step S100, when a starting instruction is received, controlling a switching device arranged between an output line of the pulse igniter and the control device to be closed, so that a closed loop is formed among the pulse igniter, the switching device and the control device.
Specifically, referring to fig. 2, a switching device and a control device are further disposed at an output line of the pulse igniter, wherein the output line of the pulse igniter is connected to a first end of the switching device, a second end of the switching device is connected to the control device, the control device is connected to an input end of the pulse igniter, and a control end of the switching device is also connected to the control device. The control method of the pulse igniter of the embodiment is applied to the control device, and when the control device receives a starting instruction sent by a user, the control device starts to operate. The control device firstly sends a signal to the control end of the switching device to close the switching device, the first end and the second end of the switching device are conducted, the signal output by the output line of the pulse igniter can be transmitted to the control device through the switching device, and at the moment, a closed loop is formed between the output line of the pulse igniter, the first end of the switching device, the second end of the switching device, the control device and the input end of the pulse igniter.
The pulse igniter comprises two output lines, wherein the tail end of each output line is connected with an ignition needle, and a line is led out from the middle part of each output line, namely the part between the pulse igniter body and the ignition needle, and is used for being connected with the first end of the switching device. In the case of a normal output line, the position at which the ignition needle ignites is determined, i.e. the ignition operation is carried out at the design position. When the output line is dropped or disconnected, the ignition position will be changed, namely, the ignition is carried out at the non-design position. Therefore, in this embodiment, the state of the output line is detected by monitoring the change of the circuit resistance, and it is determined whether the pulse igniter needs to perform the ignition operation.
It should be noted that the type of activation command is not exclusive, as long as the switching device is controlled to close under the command. For example, in one embodiment, the activation instruction may be an instruction sent by a user to the control device for activating the control device. Further, in one embodiment, the pulse igniter is applied to the gas appliance, and the corresponding start instruction may be an instruction sent by a user to start the gas appliance.
It will be appreciated that the type of control means is not exclusive and in one embodiment the control means comprises a power supply and a controller, the power supply being connected to the controller, the controller being connected to the control terminal of the switching device and the controller being connected to the input terminal of the pulse initiator. The controller, the pulse igniter, the control end of the switching device and the like can be powered by the power supply, and the control method of the pulse igniter provided by the embodiment is realized by relevant control logic in the controller.
And step S200, acquiring the resistance value of the closed loop, and comparing and analyzing the resistance value with a preset resistance threshold range.
Specifically, the preset resistance threshold range represents a normal range value of a loop resistance formed by the pulse igniter, the switching device and the control device when an output line of the pulse igniter is not dropped. It is understood that the preset resistance threshold value is not unique for different types of pulse igniters, and the specific preset resistance threshold value range can be determined by a user according to the type of the pulse igniter under actual conditions. After the control device controls the switching devices to be closed so that a closed loop is formed among the devices, the closed loop is analyzed, and whether the output line of the pulse igniter is normal or not is obtained by comparing the magnitude relation between the equivalent total resistance value (namely the resistance value of the closed loop) of the closed loop and a preset resistance threshold range.
And step S300, controlling the pulse igniter to start to operate when the resistance value meets the preset resistance threshold range.
Specifically, when the resistance value is compared and analyzed with the preset resistance threshold range, a situation that the resistance value is within the preset resistance threshold range may occur, which means that the resistance value of the closed circuit is within the normal resistance range, the output line of the pulse igniter is also normal, and the situation that the pulse igniter does not fall off is also occurred. Therefore, when the control device detects that the resistance value is within the preset resistance threshold range, the pulse igniter is directly controlled to start to operate, and ignition operation is achieved.
It should be noted that, in one embodiment, when the control device detects that the resistance value is within the preset resistance threshold value range, the pulse igniter is controlled to be powered on to perform the ignition operation, and the switching device is also controlled to be opened, that is, a closed loop among the pulse igniter, the switching device and the control device is opened, so as to ensure the reliable operation of the pulse igniter.
Referring to fig. 3, in an embodiment, after step S300, the method further includes step S400.
And step S400, when the resistance value does not meet the preset resistance threshold range, interrupting the starting operation of the pulse igniter.
Specifically, when the control device obtains the resistance value of the closed circuit and compares and analyzes the resistance value with the preset resistance threshold range, a situation that the resistance value is not within the preset resistance threshold range may also occur, which means that the resistance value of the closed circuit is abnormal, and is generally caused by a fault occurring in an output line of the pulse igniter. No matter the output line of the pulse igniter falls off or the output line of the pulse igniter is short-circuited, the resistance value is not detected to be within the preset resistance threshold value range in the closed state of the switching device. In this case, if the pulse igniter is continuously controlled to perform the ignition operation, the ignition operation is not performed at the designed position, and in this case, a local high temperature is easily caused, and other parts are damaged, or even a fire is easily caused, so that the ignition operation of the pulse igniter is interrupted in this case.
Referring to fig. 4, in an embodiment, when the resistance value does not satisfy the predetermined resistance threshold range, the method further includes step S500.
And step S500, outputting fault prompt information.
Specifically, in this embodiment, when the resistance value does not satisfy the preset resistance threshold range, that is, the resistance value is outside the preset resistance threshold range, the control device not only interrupts the ignition operation of the pulse igniter, but also outputs the fault prompt information to inform the user through the information prompt device connected to the control device, so that the user can check the fault prompt information in time, and take corresponding measures to solve the fault.
It is understood that the type of the information prompting device is not exclusive, and may specifically be an alarm device in the form of sound, light, display screen, and the like, for example, in one embodiment, the information prompting device is an audible alarm, and when the control device detects that the resistance value does not satisfy the preset resistance threshold range, the control device controls the audible alarm to generate an audible alarm to prompt the user.
Referring to fig. 5, in one embodiment, step S500 includes step S510.
And step S510, outputting fault prompt information of short circuit of an output circuit of the pulse igniter when the resistance value is smaller than the minimum value of the preset resistance threshold range.
Specifically, two output lines of the pulse igniter are respectively connected to the first end of the switching device, if the two output lines of the pulse igniter are short-circuited, the current value flowing into the control device is very large, and under the condition that the loop voltage is not changed, the resistance value obtained through analysis is very small and is far smaller than the minimum value of the preset resistance threshold range. Therefore, when the control device detects that the resistance value is smaller than the minimum value of the preset resistance threshold range, the output line is considered to be short-circuited, and at the moment, the control device outputs the fault prompt information of the short circuit of the output line of the pulse igniter to inform a user.
Referring to fig. 6, in one embodiment, step S500 includes step S520.
And step S520, outputting the fault prompt information that the output line of the pulse igniter falls off when the resistance value is larger than the maximum value of the preset resistance threshold range.
Specifically, when the output line of the pulse igniter is disconnected or falls off, and the control device controls the switching device to be closed, an effective closed loop cannot be formed among the pulse igniter, the output line and the control device, the current in the circuit is very small, and the resistance value obtained through analysis is very large and is far larger than the maximum value of the preset resistance threshold range under the condition that the voltage of the whole loop is constant. Therefore, when the control device detects that the resistance value is larger than the maximum value of the preset resistance threshold range, the control device outputs the fault prompt information that the output line of the pulse igniter falls off to inform a user.
Referring to fig. 7, in one embodiment, obtaining the resistance value of the closed loop includes steps S210 and S220.
In step S210, a current value and a voltage value flowing through the closed loop are obtained.
And step S220, analyzing according to the current value and the voltage value to obtain the resistance value of the closed loop.
Specifically, the manner in which the control device obtains the closed-loop resistance value is not exclusive. Because the control device controls the switch devices to be closed, after a closed loop is formed among the devices, the pulse igniter, the control device and the switch devices can be equivalently connected in series, the current values flowing through the devices are the same, and the voltage connected into the closed loop is fixed. Therefore, the present embodiment obtains the voltage and current values of the closed loop, and then calculates the resistance value based on the ohm theorem.
It should be noted that, in an embodiment, the control device further includes a current collector, and after the control device controls the switching device to be closed, the current collector of the control device can collect a current value flowing in the closed loop, so as to obtain a loop current value. In another embodiment, a current collector may be separately disposed in a closed loop formed between the control device, the pulse igniter and the switching device, the current collector is connected to the control device, and when the control device controls the switching device to be closed, the current collector can send a collected current value to the control device.
It can be understood that the voltage value of the closed loop can be set in the control device in a preset form, or a voltage collector is set in a manner similar to that of the current collector, so as to realize the voltage collection operation of the closed loop. The control device obtains the voltage value and the current value of the closed loop, and then obtains the resistance value of the closed loop according to the R ═ U/I.
According to the pulse igniter control method, the switch device and the control device are arranged at the output line of the pulse igniter, after the switch device is controlled to be closed by the control device, a closed loop is formed among the pulse igniter, the switch device and the control device, and by analyzing the resistance of the closed loop, when the resistance value meets the preset resistance threshold range, the output line of the pulse igniter is considered to be normal, and the pulse igniter is started to run. Through the scheme, the output line of the pulse igniter can be monitored, the situation that local high temperature, other parts are damaged and even fire disasters are caused due to abnormal ignition of the output line is avoided, and the use safety of the pulse igniter is effectively improved.
Referring to fig. 8, a pulse igniter control device includes: a switching device control module 100, a resistance analysis module 200, and a start-up control module 300.
The switching device control module 100 is configured to, when receiving a start instruction, control a switching device arranged between an output line of the pulse igniter and the control device to be closed, so that a closed loop is formed among the pulse igniter, the switching device, and the control device; the resistance value analysis module 200 is used for acquiring the resistance value of the closed loop and comparing and analyzing the resistance value with a preset resistance threshold range; the starting control module 300 is used for controlling the pulse igniter to start and operate when the resistance value meets a preset resistance threshold range.
In one embodiment, the start-up control module 300 is further configured to interrupt the start-up operation of the pulse igniter when the resistance value does not satisfy the preset resistance threshold range.
Referring to fig. 9, in one embodiment, the pulse igniter control device further includes a fault notification module 400. The fault prompting module 400 is configured to output fault prompting information when the resistance value does not satisfy the preset resistance threshold range.
In one embodiment, the fault notification module 400 is further configured to output a fault notification message indicating that the output line of the pulse igniter is short-circuited when the resistance value is smaller than the minimum value of the preset resistance threshold range.
In one embodiment, the fault notification module 400 is further configured to output a fault notification message that the output line of the pulse igniter is disconnected when the resistance value is greater than the maximum value of the preset resistance threshold range.
In one embodiment, the resistance analysis module 200 is further configured to obtain a current value and a voltage value flowing through the closed loop; and analyzing according to the current value and the voltage value to obtain the resistance value of the closed loop.
For specific limitations of the pulse igniter control device, reference may be made to the above limitations of the pulse igniter control method, which are not described herein again. All or part of each module in the pulse igniter control device can be realized by software, hardware and a combination thereof. The modules can be embedded in a hardware form or independent from a processor in the computer device, and can also be stored in a memory in the computer device in a software form, so that the processor can call and execute operations corresponding to the modules.
According to the pulse igniter control device, the switch device and the control device are arranged at the output line of the pulse igniter, after the switch device is controlled by the control device to be closed, a closed loop is formed among the pulse igniter, the switch device and the control device, the resistance of the closed loop is analyzed, when the resistance value meets the preset resistance threshold range, the output line of the pulse igniter is considered to be normal, and the pulse igniter is started to run at the moment. Through the scheme, the output line of the pulse igniter can be monitored, the situation that local high temperature, other parts are damaged and even fire disasters are caused due to abnormal ignition of the output line is avoided, and the use safety of the pulse igniter is effectively improved.
Referring to fig. 2, a pulse igniter control system includes a control device 10, a switching device 20 and a pulse igniter 30, an output line of the pulse igniter 30 is connected to a first end of the switching device 20, a second end of the switching device 20 is connected to the control device 10, the control device 10 is connected to an input end of the pulse igniter 30, a control end of the switching device 20 is connected to the control device 10, and the control device 10 is configured to control the pulse igniter 30 according to the method described above.
Specifically, when the control device 10 receives a start instruction sent by a user, the control device 10 starts operation. The control device 10 firstly sends a signal to the control terminal of the switching device 20, so that the switching device 20 is closed, the first terminal and the second terminal of the switching device 20 are conducted, and a signal output by the output line of the pulse igniter 30 can be transmitted to the control device 10 through the switching device 20, at this time, a closed loop is formed among the pulse igniter 30, the switching device 20 and the control device 10.
It should be noted that the type of activation command is not exclusive, as long as the switching device 20 is controlled to close under the command. For example, in one embodiment, the activation instruction may be an instruction sent by a user to the control device 10 for activating the control device 10. Further, in one embodiment, the pulse igniter 30 is applied to a gas appliance, and the corresponding start instruction may be an instruction sent by a user to start the gas appliance.
Referring to fig. 2, in one embodiment, the switching device 20 is an electromagnetic relay.
Specifically, the electromagnetic relay has four stationary contacts, wherein a first stationary contact and a second stationary contact, which are first ends of the switching device 20, are respectively connected to two output lines (fig. 31 and 32, respectively) of the pulse igniter 30; and the third stationary contact and the fourth stationary contact, which are second terminals of the switching device 20, are connected to the control apparatus 10, respectively, and the coil of the electromagnetic relay is connected to the control apparatus 10. When the control device 10 is powered on the electromagnetic relay to enable the coil to generate a magnetic field, the internal magnet of the electromagnetic relay is attracted, the first stationary contact and the second stationary contact are respectively communicated with the third stationary contact and the fourth stationary contact, a signal input by the first end of the control device 10 can be output through the second end, namely the switch device 20 is closed, and a loop is formed between each device.
When the control device 10 detects that the resistance value is within the preset resistance threshold range, the control device 10 will stop the power-on operation of the coil of the electromagnetic relay, at which time the magnetic field of the coil disappears, and under the action of the elastic force of the coil, the magnet of the electromagnetic relay moves in the opposite direction, so that the path between the first end and the second end of the switching device 20 is disconnected. It should be noted that in one embodiment, the contact distance of the electromagnetic relay is greater than the creepage distance of the pulse igniter 30, thereby ensuring that the pulse igniter 30 does not strike the destruction control device 10 between the contacts of the electromagnetic relay when discharging. The contact distance of the electromagnetic relay is the distance between the movable contact and the fixed contact of the electromagnetic relay under the state that the coil of the electromagnetic relay is not electrified, the movable contact of the electromagnetic relay is the part of the magnet contacted with each fixed contact when the electromagnetic relay is electrified, and similarly, the number of the movable contacts is four.
In one embodiment, the pulse igniter control system further comprises an information prompting device (not shown) connected to the control device 10.
Specifically, when the control device 10 obtains the resistance value of the closed circuit and compares and analyzes the resistance value with the preset resistance threshold range, a situation that the resistance value is not within the preset resistance threshold range may also occur, which means that the resistance value of the closed circuit is abnormal, and is generally caused by a fault occurring in the output line of the pulse igniter 30. Whether the output lines of the pulse igniter 30 are disconnected or the output lines of the pulse igniter 30 are short-circuited, the resistance value is detected not to be within the preset resistance threshold value range in the state that the switching device 20 is closed. In this case, if the pulse igniter 30 is continuously controlled to perform the ignition operation, the ignition may not be performed at the designed position, and a local high temperature, damage to other parts, and fire may be easily caused, so that the ignition operation of the pulse igniter 30 may be interrupted in this case.
When the resistance value does not satisfy the preset resistance threshold range, that is, the resistance value is outside the preset resistance threshold range, the control device 10 not only interrupts the ignition operation of the pulse igniter 30, but also outputs the fault prompt information to inform the user through the information prompt device connected with the control device, so that the user can check the fault prompt information in time and take corresponding measures to solve the fault.
It will be appreciated that the type of the information prompting device is not exclusive, and may specifically be an alarm device in the form of sound, light, display screen, etc., for example, in one embodiment, the information prompting device is an audible alarm, and when the control device 10 detects that the resistance value does not satisfy the preset resistance threshold range, the control device 10 controls the audible alarm to generate an audible alarm to prompt the user.
It should be noted that the type of the control device 10 is not exclusive, and in one embodiment, the control device 10 includes a current collector and a controller, the current collector is connected to the second terminal of the switching device 20, the current collector is connected to the controller, the controller is connected to the control terminal of the switching device 20, and the controller is connected to the input terminal of the pulse igniter 30.
The current that flows through closed circuit is gathered through the current collector to the electric current that will gather obtains sends the controller and carries out the resistance value calculation, and based on the current value I that voltage value U and the collection of whole closed circuit obtained, can obtain closed circuit's resistance value according to ohm's theorem R U/I, and then with the controller in prestore predetermine resistance threshold value scope carry out comparative analysis can.
Further, the type of controller is not exclusive, and in one embodiment, the controller is an MCU (micro controller Unit). The MCU, also known as a Single chip microcomputer (CPU) or a Single chip Microcomputer (MCU), properly reduces the frequency and specification of a Central Processing Unit (CPU), and integrates peripheral interfaces such as a memory (memory), a counter (Timer), a USB, an a/D converter, a UART, a PLC, a DMA, and even an LCD driving circuit on a Single chip to form a chip-level computer, which is controlled in different combinations for different applications. The MCU realizes the control operation of the switch and the pulse igniter 30, and has the advantages of easy realization and simple control. It is understood that in other embodiments, the controller may also be implemented by a DSP (Digital Signal processing) chip or the like.
According to the pulse igniter control system, the switching device 20 and the control device 10 are arranged at the output line of the pulse igniter 30, after the control device 10 controls the switching device to be closed, a closed loop is formed among the pulse igniter 30, the switching device 20 and the control device 10, and by analyzing the resistance of the closed loop, when the resistance value meets a preset resistance threshold range, the output line of the pulse igniter 30 is considered to be normal, and at the moment, the pulse igniter 30 is started to operate. Through the scheme, the output line of the pulse igniter 30 can be monitored, the conditions that local high temperature, other parts are damaged and even fire disasters are caused due to abnormal ignition of the output line are avoided, and the use safety of the pulse igniter 30 is effectively improved.
A gas appliance comprises the pulse igniter control system.
Specifically, referring to fig. 2, a switching device 20 and a control device 10 are further disposed at an output line of the pulse igniter 30, wherein the output line of the pulse igniter 30 is connected to a first end of the switching device 20, a second end of the switching device 20 is connected to the control device 10, the control device 10 is connected to an input end of the pulse igniter 30, and a control end of the switching device 20 is also connected to the control device 10. The pulse igniter control method of the embodiment is applied to the control device 10, and when the control device 10 receives a starting instruction sent by a user, the control device 10 starts to operate. The control device 10 firstly sends a signal to the control terminal of the switching device 20, so that the switching device 20 is closed, the first terminal and the second terminal of the switching device 20 are conducted, and a signal output by the output line of the pulse igniter 30 can be transmitted to the control device 10 through the switching device 20, at this time, a closed loop is formed among the pulse igniter 30, the switching device 20 and the control device 10.
It should be noted that the type of activation command is not exclusive, as long as the switching device 20 is controlled to close under the command. For example, in one embodiment, the activation instruction may be an instruction sent by a user to the control device 10 for activating the control device 10. Further, in one embodiment, the pulse igniter 30 is applied to a gas appliance, and the corresponding start instruction may be an instruction sent by a user to start the gas appliance.
The preset resistance threshold range represents a normal range value of the loop resistance formed by the pulse igniter 30, the switching device 20 and the control device 10 when the output line of the pulse igniter 30 is not detached. It is understood that the magnitude of the preset resistance threshold is not unique for different types of pulse igniters 30, and the specific preset resistance threshold range can be determined by a user in combination with the type of pulse igniter 30 under actual conditions. After the control device 10 controls the switching devices 20 to close so as to form a closed loop between the devices, the closed loop is analyzed, and the magnitude relation between the equivalent total resistance value of the closed loop (i.e. the resistance value of the closed loop) and the preset resistance threshold range is compared, so as to determine whether the output line of the pulse igniter 30 is normal.
When the resistance value is compared and analyzed with the preset resistance threshold range, a situation that the resistance value is within the preset resistance threshold range may occur, which means that the resistance value of the closed circuit is within the normal resistance range, the output line of the pulse igniter 30 is also normal, and the dropping-off does not occur. Therefore, when the control device 10 detects that the resistance value is within the preset resistance threshold range, the pulse igniter 30 is directly controlled to start operation, and the ignition operation is realized.
When the control device 10 obtains the resistance value of the closed circuit and compares and analyzes the resistance value with the preset resistance threshold range, a situation that the resistance value is not within the preset resistance threshold range may also occur, which means that the resistance value of the closed circuit is abnormal, and is generally caused by a fault occurring in the output line of the pulse igniter 30. Whether the output lines of the pulse igniter 30 are disconnected or the output lines of the pulse igniter 30 are short-circuited, the resistance value is detected not to be within the preset resistance threshold value range in the state that the switching device 20 is closed. In this case, if the pulse igniter 30 is continuously controlled to perform the ignition operation, the ignition may not be performed at the designed position, and a local high temperature, damage to other parts, and fire may be easily caused, so that the ignition operation of the pulse igniter 30 may be interrupted in this case.
Further, in one embodiment, when the resistance value does not satisfy the preset resistance threshold range, that is, the resistance value is outside the preset resistance threshold range, the control device 10 not only interrupts the ignition operation of the pulse igniter 30, but also outputs the fault notification information to inform the user through the information notification device connected thereto, so that the user can check the fault in time and take corresponding measures to solve the fault.
It should be noted that the type of gas appliance is not exclusive, as long as it is a device that performs an ignition operation using the pulse igniter 30, and for example, in one embodiment, the gas appliance is any one of a gas wall-hanging stove, a gas water heater, and a gas range.
In the gas appliance, the switching device 20 and the control device 10 are arranged at the output line of the pulse igniter 30, after the control device 10 controls the switching device to be closed, a closed loop is formed among the pulse igniter 30, the switching device 20 and the control device 10, and by analyzing the resistance of the closed loop, when the resistance value meets a preset resistance threshold range, the output line of the pulse igniter 30 is considered to be normal, and at this time, the pulse igniter 30 is started to operate. Through the scheme, the output line of the pulse igniter 30 can be monitored, the conditions that local high temperature, other parts are damaged and even fire disasters are caused due to abnormal ignition of the output line are avoided, and the use safety of the pulse igniter 30 is effectively improved.
The technical features of the embodiments described above may be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the embodiments described above are not described, but should be considered as being within the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above-mentioned embodiments only express several embodiments of the present application, and the description thereof is more specific and detailed, but not construed as limiting the claims. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the concept of the present application, which falls within the scope of protection of the present application. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (11)
1. A pulse igniter control method, comprising:
when a starting instruction is received, controlling a switching device arranged between an output circuit of a pulse igniter and a control device to be closed, so that a closed loop is formed among the pulse igniter, the switching device and the control device;
acquiring a resistance value of a closed loop and comparing and analyzing the resistance value with a preset resistance threshold range;
and when the resistance value meets the preset resistance threshold range, controlling the pulse igniter to start and operate.
2. The pulse igniter control method according to claim 1, wherein after the step of obtaining the resistance value of the closed loop and comparing and analyzing the resistance value with a preset resistance threshold range, the method further comprises:
and when the resistance value does not meet the preset resistance threshold range, interrupting the starting operation of the pulse igniter.
3. The pulse igniter control method according to claim 2, wherein when the resistance value does not satisfy the preset resistance threshold range, the method further comprises:
and outputting fault prompt information.
4. The pulse igniter control method according to claim 3, wherein the outputting the failure indication information includes:
and when the resistance value is smaller than the minimum value of the preset resistance threshold range, outputting fault prompt information of short circuit of an output circuit of the pulse igniter.
5. The pulse igniter control method according to claim 3, wherein the outputting the failure indication information includes:
and when the resistance value is larger than the maximum value of the preset resistance threshold range, outputting fault prompt information that an output line of the pulse igniter falls off.
6. The pulse igniter control method according to claim 1, wherein the obtaining of the resistance value of the closed loop includes:
acquiring a current value and a voltage value flowing through a closed loop;
and analyzing according to the current value and the voltage value to obtain the resistance value of the closed loop.
7. A pulse igniter control device, comprising:
the switching device control module is used for controlling the switching device arranged between an output circuit of the pulse igniter and the control device to be closed when a starting instruction is received, so that a closed loop is formed among the pulse igniter, the switching device and the control device;
the resistance value analysis module is used for acquiring the resistance value of the closed loop and comparing and analyzing the resistance value with a preset resistance threshold range;
and the starting control module is used for controlling the pulse igniter to start and operate when the resistance value meets the preset resistance threshold range.
8. A pulse igniter control system is characterized by comprising a control device, a switching device and a pulse igniter, wherein an output line of the pulse igniter is connected with a first end of the switching device, a second end of the switching device is connected with the control device, the control device is connected with an input end of the pulse igniter, a control end of the switching device is connected with the control device, and the control device is used for controlling the pulse igniter according to the method of any one of claims 1-6.
9. The pulse igniter control system of claim 8 wherein the switching device is an electromagnetic relay.
10. The pulse igniter control system of claim 8 further comprising an information prompting device, the information prompting device being connected to the control device.
11. A gas appliance comprising a pulse igniter control system according to any one of claims 8 to 10.
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| CN202010854370.7A CN111878846B (en) | 2020-08-24 | 2020-08-24 | Pulse igniter control method, device and system and gas appliance |
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| CN201335870Y (en) * | 2008-12-10 | 2009-10-28 | 河南电力试验研究院 | DC circuit fault detection system |
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