Control method of gas stove and gas stove

Abstract

The application discloses a control method of a gas stove and the gas stove, and the control method of the gas stove comprises the following steps: obtaining an environmental humidity value of the gas stove, comparing the environmental humidity value with a preset first threshold value, and if the environmental humidity value is less than the first threshold value, performing a humidifying operation on the environment at the end of an ignition needle when the ignition needle starts to work. The control method of the gas stove compares the environmental humidity value with the preset first threshold value through the environmental humidity value of the gas stove, and performs the humidifying operation on the environment at the end of the ignition needle when the ignition needle starts to work in the case that the environmental humidity value is less than the first threshold value, so that the situation that there is no spark in ignition due to too low humidity around the ignition needle is avoided, and the use experience of the user is effectively improved.

Description

Technical Field

[0001] This invention relates to a control method for a gas stove and a gas stove. Background Technology

[0002] Typically, gas stoves may experience a sparkless ignition issue during use, meaning it's unclear whether the ignition needle is working and no spark ignites the gas. Furthermore, this sparkless ignition may return to normal after a period of time, making the situation difficult to reproduce and thus challenging to repair and maintain.

[0003] In many cases, when users use gas stoves for cooking continuously, the ignition is normal the first few times, but after the stove has been used for a period of time, there will be no spark when igniting again, which greatly affects the user experience. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to overcome the defect in the prior art that gas stoves sometimes fail to ignite during ignition, which affects the user experience, and to provide a control method for gas stoves and a gas stove.

[0005] The present invention solves the above-mentioned technical problems through the following technical solution:

[0006] A method for controlling a gas stove includes the following steps:

[0007] The ambient humidity value of the gas stove is obtained and compared with a preset first threshold. If the ambient humidity value is less than the first threshold, the environment at the end of the ignition needle is humidified when the ignition needle starts to work.

[0008] The control method of this gas stove compares the ambient humidity value with a preset first threshold. If the ambient humidity value is lower than the first threshold, the environment at the end of the ignition needle is humidified when the ignition needle starts to work. This avoids the situation where there is no spark when the humidity around the ignition needle is too low, thus effectively improving the user experience.

[0009] Preferably, the obtained ambient humidity value is the ambient humidity value near the tip of the ignition needle;

[0010] In the control method of this gas stove, the ambient humidity value near the end of the ignition needle is used as the basis for whether to perform humidification operation, which makes the judgment more accurate compared to obtaining the ambient humidity value of other locations.

[0011] Preferably, the value of the first threshold is between 40 and 50.

[0012] In the control method of this gas stove, the value range of the first threshold is set between 40 and 50 to accurately judge the humidity and avoid the ignition success rate being affected by the low ambient humidity.

[0013] Preferably, the ambient humidity value is obtained by a humidity sensor located near the end of the ignition needle;

[0014] In the control method of this gas stove, the ambient humidity value is obtained by a humidity sensor set at the end of the ignition needle. Compared with setting the humidity sensor in other locations, obtaining the ambient humidity value at other locations can make the judgment more accurate.

[0015] Preferably, the environment at the end of the ignition needle is humidified through the spray nozzle of the mist guide tube located near the end of the ignition needle.

[0016] In the control method of this gas stove, the environment at the end of the ignition needle is humidified by the spray nozzle of the mist guide pipe located near the end of the ignition needle, so as to improve the humidification efficiency and humidification response speed, thereby increasing the ambient humidity near the ignition needle at the same time as the ignition needle starts to work.

[0017] Preferably, the step of comparing the ambient humidity value with a preset first threshold further includes: if the ambient humidity value is greater than the first threshold, obtaining the time interval value since the last time the gas stove was turned off, comparing the time interval value with a preset second threshold; if the time interval value is less than the second threshold, then humidifying the environment at the end of the ignition needle when the ignition needle starts working.

[0018] The control method of this gas stove involves humidifying the environment when the humidity is below a first threshold, and further comparing the time interval since the last flameout with a second threshold when the humidity is above the first threshold. This prevents the burner head from remaining too hot when the time interval is below the second threshold. When the ignition needle starts working, the environment at the end of the ignition needle is humidified to prevent the temperature around the ignition needle from becoming too high and causing no spark during ignition, thus effectively improving the user experience.

[0019] Furthermore, by detecting the time interval since the gas stove was last turned off, it is possible to determine whether the burner head of the gas stove is at a high temperature. Compared with other solutions, such as those that use temperature sensors, this method has a simpler structure and higher reliability.

[0020] Preferably, the step of comparing the time interval value with a preset second threshold further includes: if the time interval value is greater than the second threshold, then the environment at the end of the ignition needle is not humidified when the ignition needle starts working;

[0021] In the control method of this gas stove, if the time interval value is greater than the second threshold, the environment at the end of the ignition needle will not be humidified when the ignition needle starts to work, so as to simplify the control process and avoid unnecessary humidification.

[0022] Preferably, the value of the second threshold is between 100 min and 140 min;

[0023] In the control method of this gas stove, the value of the second threshold is set between 100min and 140min in order to accurately determine the flameout status of the gas stove and avoid the burner of the gas stove remaining at a high temperature, which would affect the ignition success rate.

[0024] Preferably, the time interval value is obtained by a timer connected to the gas solenoid valve or thermocouple signal of the gas stove.

[0025] A gas stove includes the following control module:

[0026] A humidity detection module, used to acquire the ambient humidity value of the gas stove;

[0027] A first comparison module is used to compare the ambient humidity value with a preset first threshold.

[0028] A humidification module is used to humidify the environment at the end of the ignition needle when the ambient humidity value is less than a first threshold and the ignition needle of the gas stove starts to work.

[0029] This gas stove uses a humidity detection module to obtain the ambient humidity value. A first comparison module compares the ambient humidity value with a preset first threshold. If the ambient humidity value is lower than the first threshold, a humidification module humidifies the environment at the end of the ignition needle when the ignition needle starts working. This prevents the humidity around the ignition needle from being too low, which could result in no spark during ignition and effectively improves the user experience.

[0030] Preferably, the humidity detection module includes a humidity sensor, which is disposed near the end of the ignition needle, and the humidity sensor is signal-connected to the first comparison module;

[0031] This gas stove obtains ambient humidity values ​​by using a humidity sensor located at the end of the ignition needle. Compared to placing the humidity sensor in other locations, obtaining ambient humidity values ​​from other locations allows for more accurate judgment.

[0032] Preferably, the first comparison module is integrated into the control module of the gas stove;

[0033] This gas stove simplifies its structure and reduces the number of parts by integrating the first comparison module into the existing control module of the gas stove.

[0034] Preferably, the humidification module includes a spray control device and a mist guide tube. The spray control device is disposed in the bottom box of the gas stove and is signal-connected to the first comparison module. One end of the mist guide tube is connected to the spray control device, and the other end of the mist guide tube extends to the end near the ignition needle.

[0035] This gas stove, by incorporating a spray control device and a mist guide pipe, with the spray control device located inside the base box of the gas stove and led out through the mist guide pipe, can reduce the space occupied by additional components above the countertop of the gas stove.

[0036] Preferably, the gas stove further includes the following control module:

[0037] A time detection module is used to obtain the time interval from the last time the gas stove was turned off to the present when the ambient humidity value is greater than a first threshold.

[0038] The second comparison module is used to compare the time interval value with a preset second threshold.

[0039] The humidification module is also used to humidify the environment at the end of the ignition needle when the time interval is less than the second threshold.

[0040] This gas stove uses a time detection module to obtain the time interval since the last time the stove was turned off when the ambient humidity is greater than a first threshold. A second comparison module compares the time interval with a second threshold. If the time interval is less than the second threshold, it avoids the burner head from remaining too hot due to an excessively short time interval. Therefore, a humidification module humidifies the environment at the end of the ignition needle when it starts working, effectively preventing the temperature around the ignition needle from becoming too high and causing no spark during ignition, thus improving the user experience.

[0041] Preferably, the time detection module includes a timer, which is connected to the gas solenoid valve or thermocouple of the gas stove, and the timer is also connected to the second comparison module.

[0042] This gas stove uses a timer connected to the gas solenoid valve to obtain the time interval since the last flameout. It determines whether the burner is at a high temperature by comparing the values ​​of the time interval values. Compared with other solutions, such as those using temperature sensors, this method has a simpler structure and higher reliability.

[0043] Preferably, the second comparison module is integrated into the control module of the gas stove;

[0044] This gas stove simplifies its structure and reduces the number of parts by integrating the second comparison module into the existing control module of the gas stove.

[0045] Preferably, the humidification module is also signal-connected to the second comparison module.

[0046] This gas stove achieves humidification of the environment near the ignition needle by connecting the humidification module to the second comparison module via a signal connection.

[0047] Preferably, the humidification module includes a mist guide tube, which is electrically connected to the ignition needle. The mist guide tube is arranged parallel to the ignition needle, or the mist guide tube is arranged concentrically with the ignition needle.

[0048] This gas stove provides an optimal arrangement of the mist guide tube and the ignition needle by setting the mist guide tube of the humidification module parallel to or concentric with the ignition needle, thereby humidifying the end environment of the ignition needle through the mist guide tube.

[0049] Preferably, both the mist guide tube and the ignition needle are fixed to the ignition needle holder of the gas stove. The minimum distance between the end of the ignition needle and the top of the ignition needle holder is defined as L1, and the minimum distance between the spray nozzle of the mist guide tube and the top of the ignition needle holder is defined as L2, where L1≥L2.

[0050] This gas stove, by constraining the minimum distance between the end of the ignition needle and the top of the ignition needle seat, ensures that the minimum distance between the end of the ignition needle and the top of the ignition needle seat is greater than or equal to the minimum distance between the spray nozzle of the mist guide tube and the top of the ignition needle seat. This ensures that the end of the ignition needle protrudes relatively outward from the spray nozzle of the mist guide tube, improving the ignition effect of the ignition needle and avoiding the influence of the structure of the mist guide tube on ignition.

[0051] Preferably, the burner cap of the gas stove has a discharge end corresponding to the ignition needle, and the spray nozzle of the mist guide tube is oriented toward the discharge end.

[0052] This gas stove improves humidification by directing the spray nozzle of the mist guide pipe toward the discharge end.

[0053] Preferably, the burner cap of the gas stove has a discharge end corresponding to the ignition needle, and the minimum distance between the end of the ignition needle and the discharge end in the vertical direction is defined as L3, and the maximum distance between each ignition hole of the gas stove in the vertical direction is L4, where L3 < L4.

[0054] This gas stove improves the ignition success rate by ensuring that the minimum vertical distance between the end of the ignition needle and the discharge end is less than the maximum vertical distance between the ignition holes of the gas stove. This allows each ignition hole to cover the area between the end of the ignition needle and the discharge end.

[0055] Preferably, the burner cap of the gas stove has a discharge end corresponding to the ignition needle, and the maximum vertical spacing between the ignition holes of the gas stove is L4, where 2mm < L4 < 6mm.

[0056] This gas stove ensures the ignition distance by setting the maximum vertical spacing between each ignition hole between 2mm and 6mm.

[0057] The positive and progressive effects of this invention are as follows:

[0058] The control method and gas stove of this gas stove compare the ambient humidity value of the gas stove with a preset first threshold. When the ambient humidity value is less than the first threshold, the environment at the end of the ignition needle is humidified when the ignition needle starts to work, so as to avoid the situation where the humidity around the ignition needle is too low and there is no spark when ignition occurs, thus effectively improving the user experience. Attached Figure Description

[0059] Figure 1 This is a control flowchart of the control method for the gas stove of the present invention.

[0060] Figure 2 This is a system block diagram of the control module of the gas stove of the present invention.

[0061] Figure 3 This is a schematic diagram (a) of the structure of the gas stove of the present invention at the ignition needle.

[0062] Figure 4 This is a schematic diagram (II) of the structure of the gas stove of the present invention at the ignition needle.

[0063] Explanation of reference numerals in the attached figures:

[0064] Ignition needle 1

[0065] Mist guide tube 2, spray nozzle 21

[0066] Ignition needle socket 3

[0067] 4. Flame cap, 41. Discharge terminal, 42. Detailed Implementation

[0068] The present invention will be further illustrated by way of embodiments below, but the present invention is not limited to the scope of the embodiments described herein.

[0069] Regarding the issue of no spark ignition during gas stove use, especially after prolonged cooking and subsequent attempts to ignite the stove again, laboratory analysis suggests that the ambient humidity around the ignition holes and needle on the burner cap significantly impacts spark ignition. Low humidity results in fewer charged ions in the air at the burner location, making ignition breakdown more difficult and increasing the likelihood of no spark ignition. Similar issues are observed in high-altitude, low-humidity regions. Furthermore, the increased temperature around the burner cap during continuous use can lower humidity, also contributing to the problem of no spark ignition.

[0070] To address the aforementioned problems and the underlying principles governing their occurrence, this invention provides a control method for a gas stove. For example... Figure 1 As shown, the control method specifically includes the following steps:

[0071] After the gas stove is powered on, the ambient humidity value is acquired and compared with a preset first threshold. If the ambient humidity value is less than or equal to the first threshold, the environment at the tip of the ignition needle is humidified when the ignition needle starts working. Specifically, in this embodiment, the first threshold is 45.

[0072] The control method of this gas stove compares the ambient humidity value with a preset first threshold. If the ambient humidity value is lower than the first threshold, the environment at the end of the ignition needle is humidified when the ignition needle starts to work. This avoids the situation where there is no spark when the humidity around the ignition needle is too low, thus effectively improving the user experience.

[0073] Furthermore, such as Figure 1 As shown, if the ambient humidity value is greater than 45%, the time interval since the gas stove was last turned off is obtained, and the time interval value is compared with a preset second threshold. If the time interval value is less than or equal to the second threshold, the environment at the end of the ignition needle is humidified when the ignition needle starts working. Specifically, in this embodiment, the second threshold is 120 minutes.

[0074] This gas stove's control method, when the ambient humidity level is above a first threshold, further compares the time interval since the stove's last flameout with a second threshold. This prevents the burner head from remaining too hot due to an excessively short time interval when the interval is below the second threshold. By humidifying the environment around the ignition needle when it begins to ignite, the method avoids overheating around the needle, preventing spark failure and effectively improving the user experience. Furthermore, determining whether the burner head is overheating by detecting the time interval since the stove's last flameout is simpler and more reliable than other methods, such as those using temperature sensors.

[0075] In addition, such as Figure 1 As shown, if the time interval value is greater than the second threshold, the environment at the end of the ignition needle will not be humidified when the ignition needle starts working.

[0076] In this embodiment, the ambient humidity value obtained is the humidity value near the tip of the ignition needle, which serves as the basis for determining whether to perform humidification. This allows for a more accurate judgment compared to obtaining humidity values ​​from other locations. The first threshold is 45, and in other embodiments, the preferred value range for the first threshold is between 40 and 50. The second threshold is 120 min, and in other embodiments, the preferred value range for the second threshold is between 100 min and 140 min.

[0077] Specifically, in this embodiment, humidification is achieved by using a spray nozzle on a mist guide tube located near the tip of the ignition needle. This humidification method improves humidification efficiency and response speed, increasing the ambient humidity near the ignition needle as soon as it begins operation. Specific humidification methods can be found in existing technologies and will not be elaborated further here. Additionally, in this embodiment, a timer is connected to the gas solenoid valve signal of the gas stove to start timing after the solenoid valve is turned off, thus obtaining the time interval value. Of course, in other embodiments, the timer can also be connected to the thermocouple signal of the gas stove for timing.

[0078] like Figure 2 As shown, the present invention also provides a gas stove, specifically including the following control module:

[0079] A humidity detection module is used to obtain the ambient humidity value of the gas stove.

[0080] The first comparison module is used to compare the ambient humidity value with a preset first threshold.

[0081] A humidification module is provided, which humidifies the environment at the end of the ignition needle of the gas stove when the ambient humidity is less than a first threshold value. The first threshold value is 45.

[0082] This gas stove uses a humidity detection module to obtain the ambient humidity value. A first comparison module compares the ambient humidity value with a preset first threshold. If the ambient humidity value is lower than the first threshold, a humidification module humidifies the environment at the end of the ignition needle when the ignition needle starts working. This prevents the humidity around the ignition needle from being too low, which could result in no spark during ignition and effectively improves the user experience.

[0083] Furthermore, such as Figure 2 As shown, the gas stove also includes the following control modules:

[0084] The time detection module is used to obtain the time interval from the last time the gas stove was turned off to the present when the ambient humidity value is greater than a first threshold.

[0085] The second comparison module is used to compare the time interval value with a preset second threshold. The second threshold is 120 minutes.

[0086] The humidification module is also used to humidify the environment at the end of the ignition needle when the time interval is less than the second threshold.

[0087] This gas stove uses a time detection module to obtain the time interval since the last time the stove was turned off when the ambient humidity is greater than a first threshold. A second comparison module compares the time interval with a second threshold. If the time interval is less than the second threshold, it avoids the burner head from remaining too hot due to an excessively short time interval. Therefore, a humidification module humidifies the environment at the end of the ignition needle when it starts working, effectively preventing the temperature around the ignition needle from becoming too high and causing no spark during ignition, thus improving the user experience.

[0088] The humidity detection module includes a humidity sensor positioned near the end of the ignition needle and connected to the first comparison module. Obtaining the ambient humidity value using a humidity sensor located at the end of the ignition needle allows for more accurate judgment compared to placing the humidity sensor at other locations, which would otherwise provide humidity readings.

[0089] Meanwhile, the time detection module includes a timer connected to the gas solenoid valve of the gas stove and also connected to a second comparison module. By connecting the timer to the gas solenoid valve, the time interval since the last flameout is obtained. The burner's temperature is determined by comparing the values ​​of these time intervals. Compared to other methods, such as those using temperature sensors, this approach is simpler and more reliable. In other embodiments, the timer is connected to a thermocouple in the gas stove, starting the timer after the thermocouple detects a flameout.

[0090] Preferably, in this embodiment, both the first comparison module and the second comparison module are integrated into the control module of the gas stove to simplify the structure and reduce the number of parts.

[0091] In addition, the humidification module includes a spray control device and a mist guide tube. The spray control device is located inside the base box of the gas stove and is signal-connected to a first comparison module and a second comparison module to obtain control signals from them. One end of the mist guide tube is connected to the spray control device, and the other end extends to the end near the ignition needle. By setting up the spray control device inside the base box of the gas stove and leading it out through the mist guide tube, the space occupied by additional components above the gas stove countertop can be reduced.

[0092] Specifically, this embodiment provides a preferred structural arrangement between the mist guide tube and the ignition needle. For example... Figure 3 and Figure 4 As shown, the ignition needle 1 and the mist guide tube 2 are arranged in parallel and are fixed together on the ignition needle seat 3, so that the ignition needle 1 and the mist guide tube 2 are electrically connected, thus preventing the ignition needle 1 from discharging into the mist guide tube 2 and causing damage to the mist guide tube 2.

[0093] Specifically, the minimum distance between the end of the ignition needle 1 and the top of the ignition needle holder 3 is defined as L1, and the minimum distance between the spray nozzle 21 of the mist guide tube 2 and the top of the ignition needle holder 3 is defined as L2. Figure 3 As can be seen, L1≥L2, to ensure that the end of the ignition needle protrudes relatively outward from the spray nozzle of the mist guide tube, thereby improving the ignition effect of the ignition needle and avoiding the influence of the structure of the mist guide tube on ignition.

[0094] like Figure 3As shown, the body of the ignition needle 1 is cylindrical, and the head of the ignition needle 1 is conical, with a generatrix angle of α, where 45 ≤ α ≤ 90. Furthermore, the diameter of the upper surface of the conical head of the ignition needle 1 is d1, where d1 ≤ 1. The conical head of the ignition needle 1 and the lower end of the needle body form a rounded transition, creating a point discharge principle. This allows the electric arc to be easily concentrated and released from position d1 of the conical head of the ignition needle 1, without any other arc concentration point. Additionally, L1 > d, ensuring that the length of the ignition needle 1 protruding from the ignition needle seat 3 is greater than the diameter d, allowing the ignition needle 1 to have sufficient contact with the air and reducing discharge resistance.

[0095] like Figure 4 As shown, the burner cap 4 of the gas stove has a discharge end 41 corresponding to the ignition needle 1, which is used to discharge with the ignition needle 1 to generate a spark to ignite the gas flowing out from the ignition hole 42 of the burner cap 4. In this embodiment, there are two ignition holes 42, arranged vertically to cover the area between the ignition needle 1 and the discharge end 41, thereby increasing the probability of successful ignition.

[0096] Specifically, the minimum vertical distance between the end of the ignition needle 1 and the discharge terminal 41 is defined as L3, while the maximum vertical distance between the ignition holes 42 of the gas stove is defined as L4. Figure 4 As can be seen, L3 < L4, which allows each ignition hole to cover the area between the end of the ignition needle and the discharge end, thus improving the ignition success rate.

[0097] In addition, there is a preferred range for the maximum vertical spacing L4 between the ignition holes 42 of the gas stove, specifically 2mm < L4 < 6mm, to ensure the ignition distance.

[0098] While specific embodiments of the present invention have been described above, those skilled in the art should understand that these are merely illustrative examples, and the scope of protection of the present invention is defined by the appended claims. Those skilled in the art can make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but all such changes and modifications fall within the scope of protection of the present invention.

Claims

1. A control method of a gas hob, characterized in that, It comprises the following steps: The ambient humidity value of the gas stove is obtained, the ambient humidity value is compared with the preset first threshold value, if the ambient humidity value is less than the first threshold value, the ambient of the ignition needle end is humidified when the ignition needle starts to work.

2. The control method of the gas hob according to claim 1, characterized in that, The obtained ambient humidity value is the ambient humidity value near the ignition needle end; And / or, the value range of the first threshold value is between 40-50; And / or, the ambient humidity value is obtained by the humidity sensor arranged near the ignition needle end; And / or, the ambient of the ignition needle end is humidified by the spray port of the mist guide pipe arranged near the ignition needle end.

3. The control method of the gas hob according to claim 1, characterized in that, In the step of comparing the ambient humidity value with the preset first threshold value, if the ambient humidity value is greater than the first threshold value, the time interval value since the last time the gas stove is extinguished is obtained, the time interval value is compared with the preset second threshold value, if the time interval value is less than the second threshold value, the ambient of the ignition needle end is humidified when the ignition needle starts to work.

4. The control method of the gas hob according to claim 3, characterized in that, In the step of comparing the time interval value with the preset second threshold value, if the time interval value is greater than the second threshold value, the ambient of the ignition needle end is not humidified when the ignition needle starts to work; And / or, the value range of the second threshold value is between 100min-140min; And / or, the time interval value is obtained by the timer connected with the gas solenoid valve or thermocouple signal of the gas stove.

5. Gas hob, characterized in that It comprises the following control modules: The humidity detection module is used to obtain the ambient humidity value of the gas stove; The first comparison module is used to compare the ambient humidity value with the preset first threshold value; The humidification module is used to humidify the ambient of the ignition needle end when the ignition needle starts to work in the case that the ambient humidity value is less than the first threshold value.

6. Gas hob according to claim 5, characterized in that The humidity detection module comprises a humidity sensor arranged near the ignition needle end, and the humidity sensor is signal connected with the first comparison module; And / or, the first comparison module is integrated in the control module of the gas stove; And / or, the humidification module comprises a spray control device and a mist guide pipe, the spray control device is arranged in the bottom box of the gas stove and is signal connected with the first comparison module, one end of the mist guide pipe is connected with the spray control device, and the other end of the mist guide pipe extends to be arranged near the end of the ignition needle.

7. Gas hob according to claim 5, characterized in that The gas stove further comprises the following control modules: The time detection module is used to obtain the time interval value since the last time the gas stove is extinguished in the case that the ambient humidity value is greater than the first threshold value; The second comparison module is used to compare the time interval value with the preset second threshold value; The humidification module is further used to humidify the ambient of the ignition needle end when the ignition needle starts to work in the case that the time interval value is less than the second threshold value.

8. Gas hob according to claim 7, characterized in that The time detection module comprises a timer signal connected with the gas solenoid valve or thermocouple of the gas stove, and the timer is further signal connected with the second comparison module; And / or, the second comparison module is integrated in a control module of the gas stove; And / or, the humidification module is further signal connected with the second comparison module.

9. Gas hob according to any one of claims 5 to 8, characterized in that The humidification module comprises a mist guide pipe, the mist guide pipe is electrically connected with the ignition needle, the mist guide pipe is parallel to the ignition needle, or the mist guide pipe is concentric to the ignition needle.

10. Gas hob according to claim 9, characterized in that The mist guide pipe and the ignition needle are both fixed on an ignition needle seat of the gas stove, the minimum distance between the end of the ignition needle and the top end of the ignition needle seat is defined as L1, the minimum distance between the spray port of the mist guide pipe and the top end of the ignition needle seat is defined as L2, L1≥L2; And / or, the fire cover of the gas stove has a discharge end corresponding to the ignition needle, the spray port of the mist guide pipe is arranged towards the discharge end; And / or, the fire cover of the gas stove has a discharge end corresponding to the ignition needle, the minimum distance between the end of the ignition needle and the discharge end in the vertical direction is defined as L3, the maximum distance between the ignition holes of the gas stove in the vertical direction is defined as L4, L3<L4; And / or, the fire cover of the gas stove has a discharge end corresponding to the ignition needle, the maximum distance between the ignition holes of the gas stove in the vertical direction is defined as L4, 2mm<L4<6mm.

Images