Combustor and gas hob

Abstract

The application relates to a burner and a gas stove. The burner comprises a burner head, a fire cap assembly arranged on the burner head, and an ignition unit. The fire cap assembly comprises an inner ring fire cap and an outer ring fire cap which is arranged in a circumferential direction outside the inner ring fire cap. The ignition unit is at least partially located in a gap between the inner ring fire cap and the outer ring fire cap. The ignition unit is movable along a first direction between a first position close to the outer ring fire cap and a second position close to the inner ring fire cap. When the burner is not in an ignition operation, the ignition unit can be located at the first position close to the outer ring fire cap, thereby being away from a high-temperature area to avoid long-term heating of the ignition unit, significantly prolonging the service life of the ignition unit and reducing the risk of failure caused by high temperature. Moreover, the ignition unit in the first position can facilitate user cleaning, effectively preventing stains from continuously accumulating on the ignition unit to affect the ignition performance and even cause safety hazards.

Description

Technical Field

[0001] This application relates to the field of kitchen appliance technology, and in particular to a burner and a gas stove. Background Technology

[0002] With social development and technological progress, gas stoves, which use liquefied petroleum gas, manufactured gas, natural gas, and other gaseous fuels for direct-fire heating, have become widely used in kitchens for heating food and are one of the essential household appliances in people's lives.

[0003] Gas stoves typically have an ignition needle, which generates a high-voltage electric spark to ignite the emitted gas and produce a flame. However, due to structural defects in the ignition needles of existing gas stoves, the needles are prone to bending, breakage, or electrode passivation after prolonged exposure to heat, significantly reducing the ignition success rate and thus affecting the user experience and lifespan of the gas stove. Summary of the Invention

[0004] Therefore, it is necessary to provide a burner and gas stove to address the problem that the ignition success rate of the ignition needle decreases significantly after prolonged heating.

[0005] A burner, comprising:

[0006] Stove head;

[0007] A flame cap assembly is provided on the furnace head, including an inner ring flame cap and an outer ring flame cap that surrounds the inner ring flame cap circumferentially.

[0008] The ignition unit is at least partially located in the gap between the inner ring burner cap and the outer ring burner cap;

[0009] The ignition unit is capable of moving along a first direction between a first position near the outer ring flame cap and a second position near the inner ring flame cap, the first direction being parallel to a radial direction of the outer ring flame cap.

[0010] In the aforementioned burner, the ignition unit can move between a first position near the outer ring burner cap and a second position near the inner ring burner cap. Therefore, during burner ignition operation, the ignition unit can be located in the second position near the inner ring burner cap for optimal ignition. When the burner is not in ignition operation, the ignition unit can move to the first position near the outer ring burner cap, thereby moving it away from the high-temperature area to avoid prolonged heating of the ignition unit. This effectively prevents bending, breakage, and electrode passivation of the ignition unit, significantly extending its service life and reducing the risk of failure due to high temperatures.

[0011] Moreover, the ignition unit, being positioned in the first position, allows users to directly observe and operate it. The ignition unit can be easily and promptly cleaned without disassembly (specifically, users can use a cloth, brush, or water to directly wipe the surface of the ignition unit to remove oil stains, residues, and other contaminants). Even if oil droplets splash, they can be cleaned immediately to prevent carbon buildup, thus effectively preventing contaminants from accumulating on the ignition unit and affecting ignition performance or even causing safety hazards.

[0012] In one embodiment, the burner further includes a drive assembly tractively connected to the ignition unit, the drive assembly being used to drive the ignition unit to move from the first position to the second position.

[0013] Thus, when no ignition operation is performed, the ignition unit is in the first position to stay away from the high-temperature area. When ignition operation is performed, the ignition unit can automatically move from the first position to the second position under the drive of the drive component. After the ignition operation is completed, the ignition unit can return from the second position to the first position. This solves the technical problems of thermal deformation, oxidation aging, and shortened lifespan caused by long-term exposure of the ignition unit to flame, and significantly improves the durability and reliability of the ignition unit.

[0014] In one embodiment, the driving component includes:

[0015] The valve stem is controllably rotatable between a first angle and a second angle about a second direction intersecting the first direction;

[0016] A retaining member protrudes from the outer surface of the valve stem; and

[0017] The push rod has one end abutting against the ignition unit and the other end located on one side of the valve stem;

[0018] Specifically, when the valve stem is at the first angle, the abutment is away from the push rod in the first direction; when the valve stem is at the second angle, the abutment is towards the push rod in the first direction.

[0019] Thus, by controlling the valve stem to rotate in the second direction, the angular relationship between the holding member and the push rod can be changed, causing the holding member to move away from or contact the push rod.

[0020] In one embodiment, the valve stem can be controllably moved along the second direction between a third position and a fourth position;

[0021] When the valve stem is in the third position, the abutment is misaligned with the push rod in the first direction; when the valve stem is in the fourth position, the abutment is aligned with the push rod in the first direction.

[0022] Thus, by controlling the valve stem to move in the second direction, the positional relationship between the holding member and the push rod can be changed, causing the holding member to move away from or contact the push rod.

[0023] In one embodiment, the burner further includes:

[0024] ejector assembly; and

[0025] A limiting bracket is installed on the ejector tube assembly, and the push rod is movably limited to the limiting bracket along the first direction.

[0026] Thus, the push rod extends along the first direction and moves stably along the first direction under the support and limiting action of the limiting bracket.

[0027] In one embodiment, the limiting bracket includes:

[0028] Support body;

[0029] A magnetic base is attached to one end of the main body of the bracket; and

[0030] A limiting member is connected to the other end of the bracket body. The limiting member has a limiting groove extending along the first direction, and the push rod can move through the limiting groove along the first direction.

[0031] In this way, the limiting bracket can be freely attached to the ejector tube assembly or other structures via the magnetic base to fix the bracket body.

[0032] In one embodiment, the burner further includes a reset member located at the burner head, the reset member abutting against the ignition unit along the first direction, the reset member being capable of undergoing recoverable deformation under external force to apply a force to the ignition unit to move it from the second position to the first position.

[0033] Thus, once the ignition operation is completed, the reset component can automatically return the ignition unit from the second position to the first position, thereby moving it away from the high-temperature area. This solves the technical problems caused by the long-term exposure of the ignition unit to the flame, such as thermal deformation, oxidation aging, and shortened lifespan, significantly improving the durability and reliability of the ignition unit.

[0034] In one embodiment, the burner head is provided with a limiting guide rail extending along the first direction, and the ignition unit is movably limited within the limiting guide rail along the first direction.

[0035] Thus, the limiting guide rail is used to limit the ignition unit, allowing the ignition unit to move stably along the first direction.

[0036] In one embodiment, the ignition unit includes a slider and an ignition needle, the slider being movably confined within the limiting guide rail along the first direction, and the ignition needle being mounted on the slider.

[0037] Thus, the ignition needle is movable and confined within the burner head via a slider.

[0038] A gas stove, including the burner described above. Attached Figure Description

[0039] The accompanying drawings, which form part of this application, are used to provide a further understanding of this application. The illustrative embodiments of this application and their descriptions are used to explain this application and do not constitute an undue limitation of this application.

[0040] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0041] Figure 1 This is a schematic diagram of the burner in the non-ignition operation according to an embodiment of this application.

[0042] Figure 2 for Figure 1 A magnified view of part A of the burner shown.

[0043] Figure 3 This is a schematic diagram of the burner in the ignition operation according to an embodiment of this application.

[0044] Figure 4 for Figure 3 A magnified view of part B of the burner shown.

[0045] Figure 5 This is a schematic diagram of the burner in the ignition operation according to an embodiment of this application.

[0046] Figure 6 for Figure 5 A magnified view of part C of the burner shown.

[0047] Figure 7 This is a partial structural diagram of a burner in an unignited operation according to an embodiment of this application.

[0048] Figure 8 for Figure 7 A magnified view of part D of the burner shown.

[0049] Figure 9 for Figure 7The diagram shows a partial structural schematic of the burner during ignition.

[0050] Figure 10 This is a schematic diagram of the structure of the limiting bracket of a burner according to an embodiment of this application.

[0051] Explanation of reference numerals in the attached figures:

[0052] 100. Burner;

[0053] 110. Burner head; 112. Limiting guide rail; 120. Injector tube assembly; 130. Control valve; 140. Burner cap assembly; 141. Inner ring burner cap; 143. Outer ring burner cap; 150. Ignition unit; 152. Slider; 154. Ignition needle; 160. Drive assembly; 161. Valve stem; 163. Support; 165. Push rod; 1652. Rod body; 1654. Pushing part; 170. Reset part; 180. Limiting bracket; 181. Bracket body; 183. Magnetic base; 185. Limiting part. Detailed Implementation

[0054] To make the above-mentioned objectives, features, and advantages of this application more apparent and understandable, the specific embodiments of this application are described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of this application. However, this application can be implemented in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of this application. Therefore, this application is not limited to the specific embodiments disclosed below.

[0055] In the description of this application, it should be understood that if terms such as "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" appear, these terms indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.

[0056] Furthermore, where the terms "first" and "second" appear, these terms are for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined with "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, where the term "multiple" appears, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0057] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0058] In this application, unless otherwise expressly specified and limited, the use of descriptions such as "above" or "below" the second feature indicates that the first and second features are in direct contact or indirect contact via an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. Similarly, "below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0059] It should be noted that if an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. If an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. If so, the terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application are for illustrative purposes only and do not represent the only possible implementation.

[0060] See Figure 1 , Figure 1 A schematic diagram of a burner according to one embodiment of this application is shown. An embodiment of this application provides a gas stove (not shown), including a stove body and burners 100, with the burners 100 mounted on the stove body. Specifically, in one embodiment, the gas stove includes two burners 100, which are spaced apart along the length of the stove body. The number and arrangement of the burners 100 are not limited and can be configured as needed to meet different requirements.

[0061] Please continue reading Figure 1The burner 100 includes a burner head 110, an injector assembly 120, a control valve 130, and a burner cap assembly 140. The burner head 110 is installed in the cooktop body and has a mixing chamber for mixing air and fuel gas. One end of the injector assembly 120 is connected to the burner head 110 and communicates with the mixing chamber. The control valve 130 is installed at the other end of the injector assembly 120 away from the burner head 110. The control valve 130 is used to connect or disconnect the injector assembly 120 from the gas source. The injector assembly 120 is used to deliver fuel gas to the mixing chamber of the burner head 110, where the fuel gas and air are mixed to form a combustion mixture.

[0062] The burner cap assembly 140 is mounted on the burner head 110 and includes an inner ring burner cap 141 and an outer ring burner cap 143. The inner ring burner cap 141 has a rotating structure and is located in the middle above the burner head 110. The outer ring burner cap 143 has a circular structure and surrounds the inner ring burner cap 141 circumferentially. Both the inner ring burner cap 141 and the outer ring burner cap 143 have flame holes communicating with the mixing chamber. The mixture of fuel gas and air in the mixing chamber can be ejected through the flame holes for combustion. It is understood that the structure of the burner cap assembly 140 is not limited to this and can be configured as needed to meet different requirements.

[0063] As described in the background section, ignition needles in the prior art are typically fixed, with the tip of the needle maintaining a fixed distance from the inner ring burner cap to ignite the gas mixture. However, the ignition needle is constantly exposed to high temperatures, and continuous heating can easily lead to thermal fatigue, oxidation corrosion, or localized deformation of the metal material forming the ignition needle. Especially after frequent ignition or prolonged operation, the ignition needle is prone to bending, breakage, or electrode passivation, thus significantly reducing the ignition success rate.

[0064] Furthermore, because the ignition needle is in a fixed position, its surface is prone to accumulating oil, food residue, and water stains. Especially when the user is cooking, oil droplets, soup, or debris are likely to drip from the edge of the cookware and splatter directly onto the surface of the ignition needle. Under high temperatures, these contaminants will gradually carbonize and form an insulating layer, which will seriously affect the spark discharge performance of the ignition needle and may even lead to ignition failure or spark deviation.

[0065] Furthermore, in existing technologies, the ignition needle is always exposed inside the burner head and close to the inner ring burner cap. Some inner ring burner caps have a shielding structure above them, causing the ignition needle to be in a blind spot and a dead zone for cleaning in the user's operating area. When users perform routine cleaning of the gas stove, it is difficult to directly reach the ignition needle, thus failing to effectively remove oil and residue from its surface. Over time, contaminants accumulate on the ignition needle, not only affecting its ignition performance but also potentially causing safety hazards.

[0066] For the above technical issues, please refer to Figure 1 , Figure 3 as well as Figure 5 The burner 100 also includes an ignition unit 150, which is used to release a high-pressure pulse to ignite the gas.

[0067] The ignition unit 150 is at least partially located in the gap between the inner ring burner cap 141 and the outer ring burner cap 143, and is movable along a first direction between a first position near the outer ring burner cap 143 and a second position near the inner ring burner cap 141. The first direction is parallel to a radial direction of the outer ring burner cap 143 (i.e.,...). Figure 1 (in the X direction).

[0068] Thus, since the ignition unit 150 can move between a first position near the outer ring burner cap 143 and a second position near the inner ring burner cap 141, when the burner 100 is in ignition operation, the ignition unit 150 can be located in the second position near the inner ring burner cap 141 to be in the optimal ignition position. When the burner 100 is not in ignition operation, the ignition unit 150 can move to the first position near the outer ring burner cap 143, thereby moving away from the high-temperature area to avoid the ignition unit 150 being heated for a long time. This effectively prevents the ignition unit 150 from bending, breaking, and electrode passivation, significantly extending the service life of the ignition unit 150 and reducing the risk of failure due to high temperature.

[0069] Moreover, the ignition unit 150, located in the first position, is easy for users to observe and operate directly. The ignition unit 150 can be easily and promptly cleaned without disassembly (specifically, users can use a cloth, brush, or water to directly wipe the surface of the ignition unit 150 to remove oil stains, residues, and other contaminants). Even if oil droplets splash, they can be cleaned immediately to avoid carbon buildup, thus effectively preventing contaminants from accumulating on the ignition unit 150 and affecting ignition performance or even causing safety hazards.

[0070] Please continue reading Figure 1 , Figure 3 as well as Figure 5 The burner 100 also includes a drive assembly 160, which is connected to the ignition unit 150 and is used to drive the ignition unit 150 to move from a first position to a second position.

[0071] Thus, when no ignition operation is performed, the ignition unit 150 is in the first position to be away from the high-temperature area. When an ignition operation is performed, the ignition unit 150 can automatically move from the first position to the second position under the drive of the drive component 160. After the ignition operation is completed, the ignition unit 150 can return from the second position to the first position. This solves the technical problems of thermal deformation, oxidation aging, and shortened lifespan caused by the long-term exposure of the ignition unit 150 to the flame, and significantly improves the durability and reliability of the ignition unit 150.

[0072] In some embodiments, the drive assembly 160 includes a valve stem 161, a retainer 163, and a push rod 165.

[0073] The valve stem 161 has a rod-shaped structure and is located at the end of the injector assembly 120 away from the burner head 110, and is spaced apart on one side of the burner head 110 in a first direction. One end of the valve stem 161 is connected to a control valve, and the other end of the valve stem 161 extends along a second direction intersecting the first direction. The end of the valve stem 161 used for the control valve can be connected to a control knob, and rotating the control knob controls the working state of the valve stem 161. In a preferred embodiment, the first direction and the second direction are perpendicular to each other.

[0074] A retaining member 163 protrudes from the outer surface of the valve stem 161 and is used to abut against the push rod 165 to push the push rod 165 to move along the first direction. Specifically, in one embodiment, the retaining member 163 is integrally formed with the valve stem 161. One end of the retaining member 163 is connected to one side of the valve stem 161, and the other end of the retaining member 163 extends in a direction away from the retaining member 163. The outer contour of the cross section of the retaining member 163 perpendicular to the first direction is oval or teardrop-shaped, and the width of the retaining member 163 gradually decreases from the end near the valve stem 161 to the end away from the valve stem 161.

[0075] The push rod 165 includes an integrally formed rod body 1652 and a pushing portion 1654. The rod body 1652 is a long rod-shaped structure extending along a first direction. One axial end of the rod body 1652 is connected to the ignition unit 150. The pushing portion 1654 is connected to one axial end of the rod body 1652 away from the ignition unit 150 and is located on one side of the valve stem 161 in the first direction. In some embodiments, the pushing portion 1654 has a rectangular block structure, thereby increasing the contact area between the pushing portion 1654 and the abutment member 163.

[0076] The valve stem 161 can be controllably moved between a third and a fourth position along a second direction. When the valve stem 161 is in the third position, the abutment 163 is misaligned with the push rod 165 in a first direction, i.e., the abutment 163 is located on one side of the push rod 165 in a second direction. When the valve stem 161 is in the fourth position, the abutment 163 is aligned with the push rod 165 in the first direction, and the abutment 163 can contact the pushing portion 1654 of the push rod 165.

[0077] Furthermore, the valve stem 161 can also be controlled to rotate about a second direction between a first angle and a second angle. When the valve stem 161 is at the first angle, the abutment 163 moves away from the push rod 165 in the first direction. When the valve stem 161 is at the second angle, the abutment 163 moves towards the push rod 165 in the first direction. Specifically, in some embodiments, the angle difference between the first angle and the second angle is 90°.

[0078] Thus, as Figure 1 and Figure 2 As shown, when the burner 100 is not in the ignition operation period, the valve stem 161 is in the third position and at the first angle. At this time, the abutment 163 is misaligned with the push rod 165 in the first direction (i.e., the abutment 163 and the push rod 165 are at different heights in the second direction), and the abutment 163 is away from the push rod 165 in the first direction and does not contact the push rod 165. At this time, the ignition unit 150 is in the first position.

[0079] like Figure 3 and Figure 4 As shown, when the burner 100 is in ignition operation, firstly, the valve stem 161 moves to the third position along the second direction, at which point the abutment 163 is aligned with the push rod 165 in the first direction (i.e., the abutment 163 is at the same height as the push rod 165 in the second direction). Then, the valve stem 161 rotates to the second angle around the second direction, at which point the abutment 163 faces the push rod 165 in the first direction, and the outer surface of the abutment 163 contacts the push rod 165, thereby pushing the push rod 165 to move away from the valve stem 161 along the first direction, which in turn drives the ignition unit 150 to move from the first position to the second position along the first direction.

[0080] Please combine Figure 5 , Figure 7 As shown, in some embodiments, the burner 100 further includes a reset member 170. The reset member 170 is located at the burner head 110 and abuts against the ignition unit 150 in a first direction. The reset member 170 is capable of undergoing recoverable deformation under external force to apply a force to the ignition unit 150 to move it from a second position to a first position.

[0081] Thus, after the ignition operation is completed, the reset member 170 automatically returns the ignition unit 150 from the second position to the first position, thereby moving it away from the high-temperature area to solve the technical problems such as thermal deformation, oxidation aging, and shortened lifespan caused by the long-term exposure of the ignition unit 150 to the flame, and significantly improve the durability and reliability of the ignition unit 150.

[0082] In one specific embodiment, the reset member 170 is a spring. It is understood that the specific type of the reset member 170 is not limited to this, and the reset member 170 may also be an elastic member formed of an elastic material such as rubber.

[0083] Specifically, when the burner 100 is in the non-ignition operation, the reset member 170 is in the initial state, and the length of the reset member 170 in the first direction reaches its maximum value. When the burner 100 is in the ignition operation, the push rod 165, driven by the valve rod 161, moves the ignition unit 150 to the second position. At this time, the reset member 170 is compressed under the pressure of the ignition unit 150 until the length of the reset member 170 in the first direction reaches its minimum value.

[0084] like Figure 5 , Figure 6 As shown, after the ignition operation is completed, the valve stem 161 returns from the fourth position to the third position. The abutment member 163 is misaligned with the push rod 165 in the first direction and moves away from the push rod 165. The thrust exerted by the push rod 165 on the reset member 170 disappears, and the reset member 170 returns to its initial state under its own elastic force, generating a reverse thrust that pushes the ignition unit 150 to move to the first position along the first direction. At this time, rotating the valve stem 161 around the second direction can adjust the working state of the control valve 130 to adjust the flame intensity.

[0085] like Figures 7 to 9 As shown, in some embodiments, the burner head 110 is provided with a limiting guide rail 112 extending along a first direction, and the ignition unit 150 is movably limited within the limiting guide rail 112 along the first direction. The limiting guide rail 112 is used to limit the ignition unit 150 so that the ignition unit 150 can move stably along the first direction.

[0086] In some embodiments, the ignition unit 150 includes a slider 152 and an ignition needle 154 mounted on the slider 152. The shape of the slider 152 matches the shape of the limiting guide rail 112, thereby movably limiting the ignition needle 154 within the limiting guide rail 112 along a first direction. One end of the ignition needle 154 is connected to the slider 152, and the other end of the ignition needle 154 extends along the first direction to insert between the inner ring burner cap 141 and the outer ring burner cap 143. Thus, the ignition needle 154 is movably limited within the burner head 110 by the slider 152.

[0087] Furthermore, in some embodiments, when the ignition unit 150 is in the second position, the distance between the ignition needle 154 and the inner ring burner cap 141 is 1mm-2mm, thereby achieving an optimal ignition position with good ignition reliability. It is understood that the specific value of the distance between the ignition needle 154 and the inner ring burner cap 141 when the ignition unit 150 is in the second position is not limited to this and can be set as needed to meet different ignition requirements.

[0088] In some embodiments, the burner 100 further includes a limiting bracket 180, which is mounted on the injector assembly 120. The push rod 165 is movably limited within the limiting bracket 180 along a first direction. Thus, the push rod 165, supported and limited by the limiting bracket 180, extends along the first direction and moves stably in that direction. It is understood that the location and number of limiting brackets 180 are not limited and can be configured as needed to meet different limiting requirements.

[0089] Specifically, in one embodiment, such as Figure 10 As shown, the limiting bracket 180 includes a bracket body 181, a magnetic base 183, and a limiting component 185.

[0090] The magnetic base 183 is connected to one end of the support body 181. The magnetic base 183 is formed of an N52 magnet, so it can be freely attached to the ejector assembly 120 or other structures to fix the support body 181. The limiting member 185 is connected to the other end of the support body 181. The limiting member 185 is provided with a limiting groove extending in a first direction. The push rod 165 can move through the limiting groove in the first direction.

[0091] Furthermore, the main body 181 of the support frame has a "V" shaped structure, including two support legs. One end of the two support legs is connected to each other, and the other ends of the two support legs extend at an angle away from each other. In this way, the two support legs form a triangular structure, which has good support stability. There are two magnetic bases 183, and each magnetic base 183 is connected to the end of one support leg away from the other support leg.

[0092] The ignition operation principle of the burner 100 is as follows:

[0093] When the burner 100 is in the unignited state, the valve stem 161 is in the first position in the first direction and at the first angle around the second direction. At this time, the abutment 163 is misaligned with the pushing part 1654 of the push rod 165 in the first direction, the reset member 170 is in the initial state, and the ignition unit 150 is in the first position and close to the outer ring flame cap 143. Therefore, the ignition unit 150 is away from the high temperature area.

[0094] When the burner 100 is in the ignition operation, the operator presses down the knob and rotates the valve stem 161. The valve stem moves to the second position in the first direction and rotates to the second angle around the second direction. At this time, the holding member 163 is aligned with the pushing part 1654 of the push rod 165 in the first direction and faces the pushing part 1654, thereby holding the pushing part 1654 and driving the rod body 1652 to move in the first direction. The reset member 170 is compressed by the pressure applied by the rod body 1652. The ignition unit 150 moves to the second position in the first direction under the drive of the rod body 1652 and approaches the inner ring burner cap 131. Therefore, the ignition unit 150 can generate a high-pressure pulse to ignite the air and fuel mixture.

[0095] After the burner 100 is ignited, the operator releases the knob, and the valve stem 161 moves back to the first position along the first direction. The abutment 163 is misaligned with the pushing part 1654 of the push rod 165 in the first direction. Since the external force applied to the reset member 170 disappears, the reset member 170 returns to its initial state under its own elastic force, thereby driving the ignition unit 150 to move along the first direction and return to the first position. Although rotating the valve stem 161 around the first direction cannot move the ignition unit 150, it can still adjust the control valve 130 to regulate the flame size. In the burner 100 and the gas stove equipped with it, the ignition operation is entirely achieved through the mechanical linkage of the drive assembly 160 and the reset member 170, without any electronic components. Therefore, the response is rapid and without delay, resulting in high reliability. Since the entire system requires no additional operation, the user only needs to rotate and press the knob to drive the valve stem 161, thus conforming to the user's daily usage habits when using a gas stove.

[0096] Because the ignition needle 154 only approaches the inner ring burner cap 141 at the moment of ignition and automatically retracts away from the high-temperature area immediately after ignition, it effectively avoids the problems of deformation, oxidation, and shortened lifespan caused by prolonged heating. Simultaneously, after automatically retracting, the ignition needle 154 remains close to the outer ring burner cap 143, located outside the burner head 110. Since this area is directly observable and operable by the user, there is no need for disassembly or flipping; the surface of the ignition needle 154 can be easily wiped clean with a cloth, soft brush, or water to remove oil stains, food residue, or water stains, simplifying maintenance. Especially during daily cooking, when oil droplets, soup, or debris splash onto the ignition needle 154, the user can immediately detect and clean it, preventing contaminants from adhering and carbonizing over time.

[0097] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0098] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the patent application. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims.

Claims

1. A burner, characterized in that, include: Stove head (110); The burner cap assembly (140) is located on the burner head (110) and includes an inner ring burner cap (141) and an outer ring burner cap (143) that surrounds the inner ring burner cap (141) in a circumferential direction. The ignition unit (150) is at least partially located in the gap between the inner ring flame cap (141) and the outer ring flame cap (143); The ignition unit (150) is movable along a first direction between a first position near the outer ring cap (143) and a second position near the inner ring cap (141), the first direction being parallel to a radial direction of the outer ring cap (143).

2. The burner according to claim 1, characterized in that, The burner also includes a drive assembly (160) which is tractively connected to the ignition unit (150) and is used to drive the ignition unit (150) to move from the first position to the second position.

3. The burner according to claim 2, characterized in that, The drive component (160) includes: The valve stem (161) is controllably rotatable about a second direction intersecting the first direction between a first angle and a second angle; The abutment (163) protrudes from the outer surface of the valve stem (161); and The push rod (165) has one end abutting against the ignition unit (150) and the other end located on one side of the valve stem (161); When the valve stem (161) is at the first angle, the abutment (163) moves away from the push rod (165) in the first direction; when the valve stem (161) is at the second angle, the abutment (163) moves towards the push rod (165) in the first direction.

4. The burner according to claim 3, characterized in that, The valve stem (161) can be controllably moved between a third position and a fourth position along the second direction; When the valve stem (161) is in the third position, the abutment (163) is misaligned with the push rod (165) in the first direction; when the valve stem (161) is in the fourth position, the abutment (163) is aligned with the push rod (165) in the first direction.

5. The burner according to claim 3, characterized in that, The burner also includes: ejector assembly (120); and A limiting bracket (180) is installed on the ejector tube assembly (120), and the push rod (165) is movably limited in the limiting bracket (180) along the first direction.

6. The burner according to claim 5, characterized in that, The limiting bracket (180) includes: Support body (181); A magnetic base (183) is connected to one end of the support body (181); and A limiting member (185) is connected to the other end of the bracket body (181). The limiting member (185) is provided with a limiting groove extending along the first direction. The push rod (165) is movably passed through the limiting groove along the first direction.

7. The burner according to claim 2, characterized in that, The burner also includes a reset member (170) which is located at the burner head (110) and abuts against the ignition unit (150) along the first direction. The reset member (170) is capable of generating recoverable deformation under external force to apply a force to the ignition unit (150) to move it from the second position to the first position.

8. The burner according to claim 1, characterized in that, The burner head (110) is provided with a limiting guide rail (112) extending along the first direction, and the ignition unit (150) is movably limited within the limiting guide rail (112) along the first direction.

9. The burner according to claim 8, characterized in that, The ignition unit (150) includes a slider (152) and an ignition needle (154). The slider (152) is movably limited within the limiting guide rail (112) along the first direction, and the ignition needle (154) is mounted on the slider (152).

10. A gas stove, characterized in that, Including the burner as described in any one of claims 1 to 9.

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