Gas cooker

Abstract

The utility model provides a gas cooker which comprises a cooker table top and an ignition needle, the ignition needle is arranged on the surface of the cooker table top and penetrates through the cooker table top downwards, the gas cooker further comprises an atomization device, a gas inlet pipe and a gas outlet pipe, the atomization device is used for atomizing water into gas, and the atomization device is arranged below the cooker table top; the two ends of the mist conveying channel are communicated with the atomization device and the part, located below the stove table top, of the ignition needle respectively, and the mist conveying channel is used for conveying atomized gas generated by the atomization device to the ignition needle; the ignition needle is provided with a mist guide channel penetrating through the ignition needle in the vertical direction, the lower end of the mist guide channel is communicated with the mist conveying channel, and the upper end of the mist conveying channel is close to the ignition tip of the ignition needle. The atomization device and the mist conveying channel are arranged below the kitchen range table top, and the atomized gas obtained after water atomization is conveyed to the lower portion of the ignition needle penetrating through the kitchen range table top downwards, so that the environment humidity around the ignition needle is improved, and the ignition success rate is ensured.

Description

Technical Field

[0001] The utility model relates to a gas cooker. Background Art

[0002] Generally, during the use of a gas cooker by a user, there may be a situation where there is no spark during ignition, that is, it is impossible to determine whether the ignition needle is working during ignition, and no spark appears to ignite the gas. Moreover, this situation of no spark during ignition may return to the normal state of having a spark during ignition after a period of time, making it difficult to reproduce the situation of no spark, and thus difficult to repair and maintain. In more cases, when the user continuously uses the gas cooker for cooking, the ignition is normal during the first few cooking times, but when the cooker is continuously used for a period of time and then ignited again, there will be a situation of no spark during ignition, which greatly affects the user experience.

[0003] Through laboratory analysis, it is considered that the humidity of the ignition holes of the burner cap and the environment around the ignition needle has a great influence on whether there is a spark during ignition. When the humidity is low, there are few charged ions in the air at the creepage position, resulting in difficult ignition breakdown and making it easy for the cooker to have the phenomenon of no spark during ignition. In addition, in high-altitude areas, due to the high altitude and low humidity, similar problems also occur. Summary of the Utility Model

[0004] The technical problem to be solved by the utility model is to overcome the defect that the low environmental humidity around the ignition needle in the prior art leads to low ignition success rate, and to provide a gas cooker.

[0005] The utility model solves the above technical problem through the following technical solutions:

[0006] A gas cooker, which includes a cooker top surface and an ignition needle. The ignition needle is installed on the surface of the cooker top surface, and the ignition needle penetrates downward through the cooker top surface. The gas cooker further includes:

[0007] An atomization device, which is used to atomize water into gas, and the atomization device is arranged below the cooker top surface;

[0008] A fog delivery channel, with both ends of the channel respectively communicating the atomization device with the part of the ignition needle below the cooker top surface. The fog delivery channel is used to deliver the atomized gas generated by the atomization device to the ignition needle;

[0009] The ignition needle has a fog guide channel that penetrates the ignition needle in the vertical direction. The lower end of the fog guide channel communicates with the fog delivery channel, and the upper end of the fog delivery channel is arranged close to the ignition tip of the ignition needle.

[0010] The gas cooker is configured such that an atomizing device and a mist delivery channel are provided below the cooker top surface, and the atomized gas after water atomization is delivered to the lower part of the ignition needle that penetrates the cooker top surface downward. The atomized gas is delivered to the vicinity of the ignition tip of the ignition needle by using a fog guiding channel provided inside the ignition needle, so as to increase the environmental humidity around the ignition needle and ensure the ignition success rate. Meanwhile, the newly added components of the gas cooker are basically located below the cooker top surface and do not occupy the space above the cooker top surface, and can be applied to any currently used gas cooker products, with high scheme compatibility.

[0011] Preferably, the ignition needle includes an insulating housing and an ignition needle body. The ignition needle body is arranged in the vertical direction and is circumferentially wrapped inside the insulating housing. The upper end of the ignition needle body extends out of the insulating housing to form the ignition tip of the ignition needle.

[0012] A preferred structural setting scheme of the ignition needle is provided. Meanwhile, the ignition needle body is circumferentially wrapped by the insulating housing, so that the outer surface of the entire ignition needle is in an insulating state except for the upper end of the ignition needle body, which can improve the reliability of the ignition needle for discharging and ignition.

[0013] Preferably, the ignition needle body has a hollow structure that penetrates vertically up and down, and the fog guiding channel is formed inside the hollow structure of the ignition needle body;

[0014] Alternatively, the insulating housing has a hollow structure that penetrates vertically up and down, and the fog guiding channel is formed inside the hollow structure of the insulating housing.

[0015] By providing a hollow structure that penetrates vertically up and down on the ignition needle body or the insulating housing to deliver the atomized gas by using this hollow structure, the overall structure of the ignition needle can be made more compact.

[0016] Preferably, the minimum distance between the ignition tip and the top end of the insulating housing is defined as L 1 , and the minimum distance between the fog outlet of the fog guiding channel and the top end of the insulating housing is L 2 , L 1 ≥L 2 .

[0017] By restricting the minimum distance between the ignition tip and the top end of the insulating housing, the minimum distance between the ignition tip and the top end of the insulating housing is made greater than or equal to the minimum distance between the fog outlet of the fog guiding channel and the top end of the insulating housing, so as to ensure that the ignition tip protrudes relative to the fog outlet of the fog guiding channel, improve the ignition effect of the ignition needle, and avoid the influence of the structure of the fog guiding tube on ignition.

[0018] Preferably, the diameter of the ignition tip is defined as d, L 1 >d.

[0019] In this dimension setting scheme, by ensuring that the length of the ignition needle body exposed from the insulating housing part is greater than the diameter, the end of the ignition needle body can be fully in contact with air, reducing the resistance of discharge.

[0020] Preferably, the ignition needle further includes a wire. In the area where the ignition needle is below the cooking top surface of the stove, one end of the wire is electrically connected to the side surface of the ignition needle body, and the wire is arranged at an interval from the mist delivery channel.

[0021] The wire for supplying pulsed current to the ignition needle body is arranged in the area where the ignition needle is below the cooking top surface of the stove, so as to avoid occupying the space above the cooking top surface.

[0022] Preferably, the gas stove further includes a burner, the burner includes a burner cap, the ignition tip is correspondingly arranged below the discharge end of the burner cap, and a plurality of ignition holes are arranged on the surface of the burner cap, and at least part of the ignition holes are arranged towards the area between the ignition tip and the discharge end;

[0023] Define the minimum distance between the ignition tip and the discharge end in the vertical direction as L 3 , and the maximum distance between each of the ignition holes in the vertical direction is L 4 , L 3 < L 4 ;

[0024] By making the minimum distance between the ignition tip and the discharge end of the burner cap in the vertical direction less than the maximum distance between each of the ignition holes of the gas stove in the vertical direction, each of the ignition holes can cover the area between the ignition tip and the discharge end, which can improve the ignition success rate.

[0025] Preferably, define the maximum distance between each of the ignition holes in the vertical direction as L 4 , 2mm < L 4 < 6mm.

[0026] By making the value range of the maximum distance between each of the ignition holes of the gas stove in the vertical direction between 2mm and 6mm, the ignition distance can be ensured.

[0027] Preferably, the shape of the ignition tip is an inclined section, define the angle between the inclined section and the vertical direction as α, 30° ≤ α ≤ 90°.

[0028] This dimension setting scheme can enable the principle of point discharge to be formed at the ignition tip, make the arc easily concentrate and discharge from this tip, and ensure that the discharge position of the ignition needle is staggered from the position where the atomized gas is discharged.

[0029] Preferably, the gas cooker further includes a cooker bottom box disposed below the cooker top surface. A receiving space for accommodating the atomizing device and the mist delivery channel is jointly defined between the cooker bottom box and the cooker top surface.

[0030] By providing a cooker bottom box to carry and accommodate the atomizing device and the mist delivery channel, protection for the atomizing device and the mist delivery channel is achieved, and the service durability of the gas cooker can be improved.

[0031] Preferably, the gas cooker further includes a humidity sensor disposed close to the ignition tip of the ignition needle.

[0032] By providing a humidity sensor, the purpose of actively detecting and controlling humidity is realized, thereby avoiding problems such as energy waste caused by continuous operation of the atomizing device during the use of the gas cooker.

[0033] The positive and progressive effects of the present utility model are as follows:

[0034] The gas cooker is provided with an atomizing device and a mist delivery channel below the cooker top surface, and the atomized gas after water atomization is delivered to the lower part of the ignition needle that penetrates downward through the cooker top surface, which can increase the environmental humidity around the ignition needle and ensure the ignition success rate.

[0035] At the same time, the newly added components of the gas cooker are basically located below the cooker top surface and do not occupy the space above the cooker top surface, and can be applied to any currently used gas cooker products, with high scheme compatibility. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 FIG. is a schematic structural diagram of the gas cooker according to Embodiment 1 of the present utility model, in which the cooker top surface is hidden.

[0037] Figure 2 FIG. is a schematic diagram of the layout position of the mist delivery channel according to Embodiment 1 of the present utility model.

[0038] Figure 3 FIG. is a schematic structural diagram of the burner and the ignition needle according to Embodiment 1 of the present utility model.

[0039] Figure 4 is Figure 3 a partial enlarged view of part A in

[0040] Figure 5 FIG. is a schematic structural diagram of the ignition needle according to Embodiment 1 of the present utility model.

[0041] Figure 6 FIG. is a schematic diagram of the positional relationship between the ignition needle and the burner cap according to Embodiment 1 of the present utility model.

[0042] Figure 7 Structural schematic diagram of the burner and the ignition pin according to Embodiment 2 of the present utility model.

[0043] Figure 8 Structural schematic diagram of the ignition pin according to Embodiment 2 of the present utility model.

[0044] Description of the reference numerals in the drawings:

[0045] Gas cooker 100

[0046] Cooker bottom box 1

[0047] Ignition pin 2

[0048] Insulating housing 21, ignition pin body 22, fog guide channel 23, ignition tip 24, wire 25

[0049] Atomization device 3

[0050] Fog delivery channel 4

[0051] Burner 5

[0052] Hood 51, discharge end 511, ignition hole 512

[0053] Gas valve 6

[0054] Ejector pipe 7

[0055] Base 8

[0056] Controller 9 Specific implementation mode

[0057] The following is a preferred embodiment, and the present utility model will be described more clearly and completely in conjunction with the accompanying drawings.

[0058] Embodiment 1

[0059] As Figure 1 and Figure 2 shown, the present utility model provides a gas cooker 100, which includes a burner 5 and an ignition pin 2 arranged on the cooker tabletop (not shown in the figure), and an atomization device 3, a fog delivery channel 4, a gas valve 6, an ejector pipe 7, a base 8 and a controller 9 located below the cooker tabletop. Among them, the atomization device 3, the fog delivery channel 4, the gas valve 6, the ejector pipe 7, the base 8 and the controller 9 are all accommodated in the cooker bottom box 1, and a receiving space for accommodating the above-mentioned components is jointly formed between the cooker bottom box 1 and the cooker tabletop to achieve the purpose of carrying and accommodating each component.

[0060] Among them, the gas is transported to the gas valve 6. After the gas flow is controlled by the gas valve 6, it is transported to the ejector tube 7 to eject air, realizing the mixing of air and gas. Then, the mixture of gas and air is transported to the base 8, and then upward to the burner cap 51 of the burner 5, flowing out from the fire holes of the burner cap 51, and is ignited by generating a spark through the ignition pin 2 to achieve the combustion purpose. The controller 9 is used to supply power to the solenoid valve in the gas valve 6 and is used to detect various operating states of the gas stove 100, such as detecting the state of the gas valve 6 to determine whether the gas is turned on, or the fire power size state of the gas stove 100, etc.

[0061] Specifically, the ignition pin 2 is installed on the surface of the stove top, and the ignition pin 2 penetrates downward through the stove top. The atomization device 3 is used to atomize water into gas. The two ends of the mist transportation channel 4 are respectively connected to the atomization device 3 and the part of the ignition pin 2 located below the stove top. The mist transportation channel 4 is used to transport the atomized gas generated by the atomization device 3 to the ignition pin 2.

[0062] As Figures 3 to 6 shown, the ignition pin 2 has a fog guide channel 23 that penetrates the ignition pin 2 in the vertical direction. The lower end of the fog guide channel 23 is connected to the mist transportation channel 4, and the upper end of the mist transportation channel 4 is arranged close to the ignition tip 24 of the ignition pin 2.

[0063] The gas stove 100 improves the environmental humidity around the ignition pin 2 and ensures the ignition success rate by arranging the atomization device 3 and the mist transportation channel 4 below the stove top and transporting the atomized gas after water atomization to the lower part of the ignition pin 2 that penetrates downward through the stove top, and using the fog guide channel 23 arranged inside the ignition pin 2 to transport the atomized gas to the vicinity of the ignition tip 24 of the ignition pin 2. At the same time, the newly added components of the gas stove 100 are basically located below the stove top and do not occupy the space above the stove top, and can be applied to any currently used gas stove 100 products, with high scheme compatibility.

[0064] Specifically, the specific atomization principle of the atomization device 3 belongs to the prior art and will not be elaborated here. At the same time, the atomization device 3 can store atomized water in the way of an internal water tank, or directly obtain atomized water by docking with an external water pipe.

[0065] As Figure 4 and Figure 5As shown, the ignition pin 2 in this embodiment specifically includes an insulating housing 21 and an ignition pin body 22. The ignition pin body 22 is arranged in the vertical direction and is circumferentially wrapped in the insulating housing 21. The upper end of the ignition pin body 22 extends out of the insulating housing 21 to form the ignition tip 24 of the ignition pin 2. By using the insulating housing 21 to circumferentially wrap the ignition pin body 22, the outer surface of the entire ignition pin 2 is in an insulating state except for the upper end of the ignition pin body 22, which can improve the reliability of the ignition pin 2 for discharging and igniting. Specifically, in this embodiment, the material used for the insulating housing 21 is ceramic. Of course, in other embodiments, any material that can achieve insulation can be used.

[0066] As Figure 6 shown, the insulating housing 21 has a hollow structure that penetrates up and down in the vertical direction, and a fog guiding channel 23 is formed in the hollow structure of the insulating housing 21 so that the fog guiding channel 23 and the ignition pin body 22 are arranged relatively parallel to each other.

[0067] Among them, as Figure 5 shown, the minimum distance L between the ignition tip 24 and the top end of the insulating housing 21 1 is greater than or equal to the minimum distance L between the fog outlet of the fog guiding channel 23 and the top end of the insulating housing 21 2 . By restricting the minimum distance between the ignition tip 24 and the top end of the insulating housing 21, the minimum distance between the ignition tip 24 and the top end of the insulating housing 21 is greater than or equal to the minimum distance between the fog outlet of the fog guiding channel 23 and the top end of the insulating housing 21, so as to ensure that the ignition tip 24 protrudes relatively outward from the fog outlet of the fog guiding channel 23, improve the ignition effect of the ignition pin 2, and avoid the influence of the structure of the fog guiding pipe on ignition. In addition, the minimum distance L between the ignition tip 24 and the top end of the insulating housing 21 1 is greater than the diameter d of the ignition tip 24 to ensure that the length of the part of the ignition pin body 22 exposed from the insulating housing 21 is greater than the diameter, so that the end of the ignition pin body 22 can fully contact the air and reduce the resistance of discharging.

[0068] As Figure 4 and Figure 6 shown, in this embodiment, the ignition tip 24 of the ignition pin 2 is correspondingly arranged below the discharge end 511 of the burner cap 51 to discharge from the ignition pin 2 to the discharge end 511 of the burner cap 51 to achieve the purpose of igniting the gas. Among them, a plurality of ignition holes 512 are provided on the surface of the burner cap 51, and a part of the ignition holes 512 are arranged towards the area between the ignition tip 24 and the discharge end 511, and the minimum distance L between the ignition tip 24 and the discharge end 511 in the vertical direction 3 is greater than the maximum distance L between the ignition holes 512 in the vertical direction 4, enabling each ignition hole 512 to cover the area between the ignition tip 24 and the discharge end 511, can improve the ignition success rate. Meanwhile, more preferably, the maximum vertical spacing L between each ignition hole 512 4 should be controlled within the range of 2 mm to 6 mm to ensure the ignition distance.

[0069] In this embodiment, the atomization device 3 can be synchronously turned on when the gas knob of the gas valve 6 starts to rotate, that is, when the gas stove 100 starts to ignite. Further, the atomization device 3 can be electrically connected to the controller 9 of the gas stove 100 to more actively control the turning on or off of the atomization device 3. For example, the gas stove 100 can further include a humidity sensor, which is arranged close to the ignition tip 24 of the ignition needle 2 to detect the humidity near the ignition tip 24. By transmitting the humidity data to the controller 9, the controller 9 can decide whether to turn on the atomization device 3 during ignition based on the humidity data, so as to provide a relatively more automatic and intelligent control scheme.

[0070] Embodiment 2

[0071] This embodiment also provides a gas stove 100, whose structure is substantially the same as that of the gas stove 100 provided in Embodiment 1. The main difference is that, as Figure 7 and Figure 8 shown, in this embodiment, the fog guiding channel 23 is not formed in the insulating housing 21, but in the ignition needle body 22. Specifically, the ignition needle body 22 has a vertically through hollow structure, and the fog guiding channel 23 is formed in the hollow structure of the ignition needle body 22, that is, the ignition needle body 22 and the fog guiding channel 23 are concentrically arranged, so that the structure of the ignition needle 2 is more compact.

[0072] Among them, as Figure 7 shown, since the fog guiding channel 23 is formed inside the ignition needle body 22, it is necessary to connect the fog delivery channel 4 to the bottom of the ignition needle body 22 to supply atomized gas to the inside of the ignition needle body 22. In this case, more preferably, the wire 25 of the ignition needle 2 is arranged on the side of the ignition needle body 22, and is arranged at an interval from the fog delivery channel 4.

[0073] In this case, as Figure 8 shown, more preferably, the shape of the ignition tip 24 is an inclined section, and the included angle α formed by the inclined section and the vertical direction ranges from 30° to 90°, so that the principle of tip discharge can be formed at the ignition tip 24, making the arc easily concentrated and discharged from this tip, and ensuring that the discharge position of the ignition needle 2 and the position where the atomized gas is discharged are staggered.

Claims

1. A gas stove, comprising a stove top and an ignition needle, wherein the ignition needle is installed on the surface of the stove top, characterized in that: The ignition needle passes through the stove table downwards, and the gas stove further comprises: An atomizing device, the atomizing device is used to atomize water into gas, and the atomizing device is arranged below the stove table; A mist delivery channel, the two ends of which are respectively connected to the atomizing device and the part of the ignition needle located below the cooker table, and the mist delivery channel is used to deliver the atomized gas generated by the atomizing device to the ignition needle; The ignition needle has a mist guide channel which passes through the ignition needle in a vertical direction, the lower end of the mist guide channel is communicated with the mist delivery channel, and the upper end of the mist delivery channel is arranged close to the ignition tip of the ignition needle.

2. The gas cooker according to claim 1, characterized in that: The ignition needle comprises an insulating shell and an ignition needle body. The ignition needle body is arranged in a vertical direction and is circumferentially wrapped in the insulating shell. The upper end of the ignition needle body extends out of the insulating shell to form an ignition tip of the ignition needle.

3. The gas cooker according to claim 2, characterized in that: The ignition needle body has a hollow structure that penetrates from top to bottom in the vertical direction, and the mist guide channel is formed in the hollow structure of the ignition needle body; Alternatively, the insulating shell has a hollow structure that penetrates from top to bottom in the vertical direction, and the mist guiding channel is formed in the hollow structure of the insulating shell.

4. The gas cooker according to claim 2, characterized in that: The minimum distance between the ignition tip and the top of the insulating shell is defined as L1, and the minimum distance between the mist outlet of the mist guide channel and the top of the insulating shell is defined as L2, where L1≥L2.

5. The gas cooker according to claim 4, characterized in that: The diameter of the ignition tip is defined as d, L1>d.

6. The gas cooker according to claim 2, characterized in that: The ignition needle further comprises a wire, and in the area where the ignition needle is located below the stove table, one end of the wire is electrically connected to the side surface of the ignition needle body, and the wire is spaced apart from the mist delivery channel.

7. The gas cooker according to claim 1, characterized in that: The gas cooker further comprises a burner, wherein the burner comprises a fire cover, wherein the ignition tip is correspondingly arranged below the discharge end of the fire cover, and a plurality of ignition holes are arranged on the surface of the fire cover, and at least some of the ignition holes are arranged toward the area between the ignition tip and the discharge end; The minimum distance between the ignition tip and the discharge end along the vertical direction is defined as L3, and the maximum distance between the ignition holes along the vertical direction is defined as L4, L3<L4; And / or, the maximum distance between the ignition holes along the vertical direction is defined as L4, 2mm<L4<6mm.

8. The gas cooker according to claim 1, characterized in that: The shape of the ignition tip is a beveled surface, and the angle between the beveled surface and the vertical direction is defined as α, 30°≤α≤90°.

9. The gas cooker according to claim 1, characterized in that: The gas stove further comprises a stove bottom box, which is arranged below the stove countertop. The stove bottom box and the stove countertop together form a storage space for accommodating the atomization device and the mist delivery channel.

10. The gas cooker according to claim 1, characterized in that: The gas cooker further comprises a humidity sensor, which is arranged close to the ignition tip of the ignition needle.

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