Ignition mechanism for gas stove and gas stove

Abstract

The utility model discloses an ignition mechanism for a gas stove and the gas stove, and belongs to the technical field of kitchen electric appliances. The ignition mechanism comprises an ignition needle, a thermocouple, a shielding piece and a driving assembly, the ignition needle and the thermocouple are both installed between an inner fire cover and an outer fire cover of the gas stove, the shielding piece is movably arranged relative to the ignition needle, and the driving assembly is used for driving the shielding piece to move. The shielding piece is provided with an ignition position located over the ignition needle and the thermocouple in a spaced mode and an avoiding position avoiding the ignition needle and the thermocouple. During ignition, the driving assembly drives the shielding piece to move to the ignition position, the situation of poor ignition caused by different ignition positions of the ignition needle can be avoided, and meanwhile the shielding piece can protect the thermocouple, prevent ignition out-of-flame, ensure that the thermocouple can normally suck a valve and avoid accidental flameout; after ignition is completed, the driving assembly drives the shielding piece to move to the avoiding position, and the shielding piece is prevented from affecting the combustion efficiency. The gas stove is not prone to flame separation, accidental flameout can be avoided, and the ignition success rate is high.

Description

Technical Field

[0001] This application relates to the field of kitchen appliance technology, specifically to an ignition mechanism for a gas stove and a gas stove. Background Technology

[0002] In related technologies, gas stoves include a burner cap, a thermocouple, and an ignition needle. The burner cap has an ignition hole and a main burner hole. The ignition needle is positioned opposite the ignition hole, with the main burner hole located above it. After the ignition needle is activated, the main burner hole ignites the flame. However, due to installation errors or accidental impacts during use, the ignition needle may deviate from its optimal ignition position, resulting in poor ignition. Furthermore, flame lift-off can easily occur at the ignition hole, preventing the thermocouple from properly sensing and activating the valve.

[0003] Therefore, there is an urgent need for an ignition mechanism for gas stoves to solve the above problems. Utility Model Content

[0004] The purpose of this application is to solve or at least alleviate some or all of the aforementioned problems. Therefore, the purpose of this application is to provide an ignition mechanism and gas stove that is less prone to flame lift-off, avoids accidental flameout, and has a high ignition success rate.

[0005] To achieve the above objectives, this application adopts the following technical solution:

[0006] In a first aspect, this application provides an ignition mechanism for a gas stove, including a thermocouple and an ignition needle, wherein both the thermocouple and the ignition needle are located between the inner burner cap and the outer burner cap of the gas stove. The ignition mechanism for the gas stove further includes:

[0007] A shielding component, wherein the shielding component is movably disposed relative to the ignition needle;

[0008] A driving assembly for driving the blocking member to move, such that the blocking member has an ignition position spaced directly above the ignition needle and the thermocouple, and a clearance position avoiding the ignition needle and the thermocouple.

[0009] As an optional solution for the ignition mechanism of the gas stove, the shield is configured to be movably mounted on the inner burner cover in a horizontal direction, and the shield is located above the ignition needle and the thermocouple.

[0010] As an optional solution for the ignition mechanism of the gas stove, the drive assembly includes a driver, a first link and a second link. The first end of the second link is hinged to the blocking member, and its second end is hinged to the first end of the first link. The driver is driven to the second end of the first link and is used to drive the first link to move up and down in the vertical direction, so that the second link pulls the blocking member to switch between the ignition position and the avoidance position.

[0011] As an optional solution for the ignition mechanism of the gas stove, the drive assembly further includes a meshing worm gear and a worm. The worm gear is connected to the output end of the driver, and the worm is fixed to the second end of the first connecting rod. The driver is used to drive the worm gear to rotate so that the worm drives the first connecting rod to rise and fall in the vertical direction.

[0012] As an optional embodiment of the ignition mechanism for the gas stove, the ignition mechanism for the gas stove further includes a guide member having a horizontally extending groove, and a portion of the structure of the shielding member is slidably installed within the groove.

[0013] As an optional solution for the ignition mechanism of the gas stove, the shielding member includes a shielding part, a sliding part and a hinge part connected in sequence. The shielding part can be located directly above the ignition needle, the sliding part slides in cooperation with the slide groove, and the hinge part is located outside the slide groove and is hinged to the first end of the second connecting rod.

[0014] As an optional solution for the ignition mechanism of the gas stove, the slide has a guide portion and an opening communicating with the guide portion, and the width of the opening is smaller than the width of the guide portion. The sliding portion slides in cooperation with the guide portion, and the hinge portion extends out of the slide from the opening.

[0015] As an optional solution for the ignition mechanism of the gas stove, when the shielding member is in the ignition position, the distance between the shielding member and the ignition needle is 3mm to 5mm.

[0016] Secondly, this application provides a gas stove, comprising:

[0017] Base;

[0018] The burner head is mounted on the base;

[0019] An outer flame cover is provided over the outer ring ejector tube of the furnace head;

[0020] An inner flame cover is provided over the central ejector tube of the burner head, and the inner flame cover has an ignition hole and a main flame hole located above the ignition hole.

[0021] As described in any of the preceding claims, the ignition mechanism for a gas stove has an ignition needle installed on the base and located between the inner burner cap and the outer burner cap, and the ignition needle ignites the gas in the main burner hole through the ignition hole.

[0022] As an optional feature of the gas stove, the blocking component of the ignition mechanism of the gas stove is movably installed on the upper surface of the inner burner cover, and the gas stove also includes a cap that covers the blocking component.

[0023] The beneficial effects of this application are as follows:

[0024] The ignition mechanism provided in this application includes an ignition needle, a thermocouple, a shielding component, and a drive assembly. The ignition needle and thermocouple are both installed between the inner and outer burner caps of the gas stove. The shielding component is movably disposed relative to the ignition needle. The drive assembly drives the shielding component to move, so that the shielding component has an ignition position located directly above the ignition needle and thermocouple, and a clearance position avoiding the ignition needle and thermocouple. When ignition is required, the drive assembly drives the shielding component to the ignition position, which can prevent poor ignition caused by inconsistent ignition positions of the ignition needle. At the same time, the shielding component protects the thermocouple, preventing flame lift-off and ensuring that the thermocouple can properly draw the valve, avoiding accidental flameout. After ignition is completed, the drive assembly drives the shielding component to the clearance position, preventing the shielding component from affecting combustion efficiency.

[0025] The gas stove provided in this application, by applying the above-mentioned ignition mechanism, is less prone to flame lift-off, can avoid accidental flameout, and has a high ignition success rate. Attached Figure Description

[0026] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments of this application 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 the content of the embodiments of this application and these drawings without creative effort.

[0027] Figure 1 A schematic diagram of the structure of the gas stove in the first state provided in the embodiment of this application is shown.

[0028] Figure 2 A schematic diagram of the structure of the gas stove in the second state provided in the embodiment of this application is shown.

[0029] Figure 3 A cross-sectional schematic diagram of the gas stove in the first state provided in the embodiment of this application is shown.

[0030] Figure 4 A cross-sectional schematic diagram of the gas stove in the second state provided in the embodiment of this application is shown.

[0031] Figure 5 A schematic diagram of the structure of the driving component provided in an embodiment of this application is shown.

[0032] Figure 6 It shows Figure 4 A partial schematic diagram of the central blocking component.

[0033] Figure label:

[0034] 100, Base; 200, Burner head; 300, Outer burner cap; 400, Inner burner cap; 401, Ignition hole; 402, Main burner hole; 403, Support component; 500, Cap;

[0035] 1. Thermocouple;

[0036] 2. Ignition needle;

[0037] 3. Covering component; 31. Covering part; 32. Sliding part; 33. Hinge part;

[0038] 4. Drive assembly; 41. Driver; 42. First link; 43. Second link; 44. Worm gear; 45. Worm;

[0039] 5. Guide component; 51. Slide groove; 511. Guide section; 512. Opening. Detailed Implementation

[0040] Before explaining any implementation of this application in detail, it should be understood that this application is not limited to its application to the structural details and component arrangements set forth in the following description or shown in the above drawings.

[0041] In this application, the terms "comprising," "including," "having," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes that element.

[0042] In this application, the term "and / or" describes the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent three cases: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this application generally indicates that the preceding and following related objects have an "and / or" relationship.

[0043] In this application, the terms "connection," "combination," "coupling," and "installation" can refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, a direct connection refers to two parts or components being connected together without the need for an intermediary, while an indirect connection refers to two parts or components each being connected to at least one intermediary, with the connection achieved through the intermediary. Furthermore, "connection" and "coupling" are not limited to physical or mechanical connections or couplings, but can also include electrical connections or couplings.

[0044] In this application, those skilled in the art will understand that relative terms (e.g., “about,” “approximately,” “basically,” etc.) used in conjunction with quantities or conditions are to include the values ​​and have the meaning indicated by the context. For example, such relative terms include at least the degree of error associated with the measurement of a particular value, tolerances associated with the particular value due to manufacturing, assembly, use, etc. Such terms should also be considered as disclosing a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​not using relative terms should also be disclosed as specific values ​​with tolerances. Furthermore, “basically” when expressing relative angular relationships (e.g., substantially parallel, substantially perpendicular) may refer to a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) added to or subtracted from the indicated angle.

[0045] In this application, those skilled in the art will understand that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0046] In this application, the directional terms "upper," "lower," "left," "right," "front," and "rear" are used to describe the orientation and positional relationships shown in the accompanying drawings and should not be construed as limiting the embodiments of this application. Furthermore, in the context, it should be understood that when an element is mentioned as being connected "upper" or "lower" to another element, it can be directly connected to the other element "upper" or "lower," or indirectly connected through an intermediate element. It should also be understood that directional terms such as upper side, lower side, left side, right side, front side, and rear side not only represent positive orientation but can also be understood as lateral orientation. For example, "below" can include directly below, lower left, lower right, lower front, and lower rear.

[0047] Figure 1 A schematic diagram of the structure of the gas stove in the first state provided in the embodiment of this application is shown. Figure 2 A schematic diagram of the structure of the gas stove in the second state according to an embodiment of this application is shown.Figures 1-2 As shown, the gas stove includes a base 100, a burner head 200, an outer burner cap 300, and an inner burner cap 400. The burner head 200 is mounted on the base 100. The outer burner cap 300 covers the outer ring injector tube of the burner head 200. The inner burner cap 400 covers the central injector tube of the burner head 200, and the inner burner cap 400 has an ignition hole 401 and a main burner hole 402 located above the ignition hole 401.

[0048] The gas stove provided in this application also includes an ignition mechanism, which includes an ignition needle 2 and a thermocouple 1. Both the ignition needle 2 and the thermocouple 1 are installed on the base 100 and located between the inner burner cap 400 and the outer burner cap 300. After the ignition needle 2 discharges, it ignites the gas in the main burner cap 402 through the ignition hole 401. The thermocouple 1, in conjunction with the solenoid valve, can realize the flameout protection of the gas stove to improve the safety of the gas stove.

[0049] The related technology has the following risks: due to installation errors of the ignition needle 2 or accidental collisions during use, the ignition needle 2 may deviate from the optimal ignition position, resulting in poor ignition. Furthermore, flame lift-off may easily occur at the ignition hole 401, causing the thermocouple 1 to fail to sense and draw the valve normally.

[0050] Figures 3 A cross-sectional schematic diagram of the gas stove in the first state provided in the embodiment of this application is shown. Figures 4 A cross-sectional schematic diagram of the gas stove in a second state according to an embodiment of this application is shown. Figures 3-4 As shown, to solve the above problems, the ignition mechanism provided in this application further includes a shield 3 and a drive assembly 4. The shield 3 is movably mounted on the inner ignition cap 400 relative to the ignition needle 2. The drive assembly 4 is used to drive the shield 3 to move as needed, so that the shield 3 has an ignition position spaced directly above the ignition needle 2 and the thermocouple 1, and a clearance position avoiding the ignition needle 2 and the thermocouple 1. When ignition is required, see... Figure 2 and Figure 4 As shown, the drive assembly 4 drives the shield 3 to move to the ignition position directly above the ignition needle 2 and thermocouple 1. This prevents poor ignition caused by inconsistent ignition positions of the ignition needle 2. Simultaneously, the shield 3 protects the thermocouple 1, preventing flame lift-off and ensuring proper valve intake for the thermocouple 1, thus preventing accidental flameout. After ignition is complete, see... Figure 1 and Figure 3 As shown, the drive assembly 4 drives the shield 3 to move to a position that avoids the ignition needle 2 and the thermocouple 1, so as to prevent the shield 3 from affecting the combustion efficiency.

[0051] In this embodiment, the shielding member 3 is movably mounted on the inner flame cap 400 in a horizontal direction, and the shielding member 3 is located above the ignition needle 2 and the thermocouple 1. The driving assembly 4 is used to drive the shielding member 3 to move in a horizontal direction, so that the shielding member 3 switches between the ignition position and the avoidance position.

[0052] In other embodiments, the shielding member 3 can also be rotatably mounted on the inner flame cap 400 in a horizontal plane, and the shielding member 3 is located above the ignition needle 2 and the thermocouple 1. The driving assembly 4 is used to drive the shielding member 3 to rotate, so that the shielding member 3 switches between an ignition position and an avoidance position. It is understood that the movement of the shielding member 3 is not limited to the two types of movement described above, such as moving horizontally or rotating in a horizontal plane. Any movement that allows the shielding member 3 to have an ignition position directly above the ignition needle 2 and the thermocouple 1 and an avoidance position that avoids the ignition needle 2 and the thermocouple 1 is acceptable, and will not be described in detail here.

[0053] To improve the effectiveness of the shielding component 3, when the shielding component 3 is in the ignition position, the distance between the shielding component 3 and the ignition needle 2 is 3mm to 5mm, such as 3mm, 3.5mm, 4mm, 4.5mm, 5mm, etc. This range of values ​​can ensure that the ignition needle 2 can perform high-quality ignition, and also protect the thermocouple 1, ensuring that the thermocouple 1 can draw the valve normally and avoid accidental flameout.

[0054] Figure 5 A schematic diagram of the structure of the driving component 4 provided in an embodiment of this application is shown. Figure 5 Combination Figure 4 As shown, the drive assembly 4 includes a driver 41, a first link 42, and a second link 43. The first end of the second link 43 is hinged to the blocking member 3, and its second end is hinged to the first end of the first link 42. The driver 41 is drively connected to the second end of the first link 42 and is used to drive the first link 42 to move vertically up and down, so that the second link 43 pulls the blocking member 3 between the ignition position and the avoidance position. For example, the driver 41 can be a servo motor, which can improve the control accuracy of the drive assembly 4 on the blocking member 3.

[0055] The drive assembly 4 also includes a meshing worm gear 44 and a worm 45. The worm gear 44 is connected to the output end of the driver 41, and the worm 45 is fixed to the second end of the first connecting rod 42. The driver 41 is used to drive the worm gear 44 to rotate so that the worm 45 drives the first connecting rod 42 to move up and down in the vertical direction.

[0056] To ensure the stable movement of the shielding component 3, the ignition mechanism also includes a guide component 5. The guide component 5 has a horizontally extending groove 51, and a portion of the shielding component 3 is slidably mounted within the groove 51. This design uses the groove 51 of the guide component 5 to limit and guide the movement trajectory of the shielding component 3, thereby ensuring the accuracy of the shielding component 3's movement position.

[0057] Figure 6 It shows Figure 4 A partial schematic diagram of the middle blocking component 3. (See attached diagram.) Figure 6 Combination Figure 5As shown, the shielding member 3 includes a shielding part 31, a sliding part 32, and a hinge part 33 connected in sequence. The shielding part 31 can be located directly above the ignition needle 2. The sliding part 32 is slidably engaged with the slide groove 51. The hinge part 33 is located outside the slide groove 51 and is hinged to the first end of the second connecting rod 43. This design ensures that the shielding member 3 can completely shield the ignition needle 2 and the thermocouple 1, can slidely engage with the slide groove 51 of the guide member 5, and can also facilitate the hinge connection between the shielding member 3 and the second connecting rod 43.

[0058] In this embodiment, the shielding part 31 is fan-shaped so that it can completely shield the ignition needle 2 and the thermocouple 1 directly above. The sliding part 32 is rectangular so that it can slide and engage with the groove 51 in a directional manner. The hinge part 33 is perpendicularly connected to the sliding part 32 so that it can be hinged to the second connecting rod 43.

[0059] Furthermore, the slide groove 51 has a guide portion 511 and an opening 512 communicating with the guide portion 511, and the width of the opening 512 is smaller than the width of the guide portion 511. In other words, the width of the sliding portion 32 is greater than the width of the hinge portion 33. The sliding portion 32 slides in conjunction with the guide portion 511, and the hinge portion 33 extends out of the slide groove 51 from the opening 512. This design can prevent the sliding portion 32 from disengaging from the guide portion 511 of the slide groove 51, thereby improving the stability of the movement of the blocking member 3.

[0060] The gas stove also includes a cap 500, which is placed on top of the shield 3. Specifically, the cap 500 is placed on the upper surface of the guide 5, which not only prevents debris from entering the inner burner cover 400, but also enhances the appearance of the gas stove.

[0061] Furthermore, the upper surface of the inner flame cap 400 has several support members 403, which are arranged around the guide member 5. The support members 403 support the cap 500 to improve its stability. In this embodiment, there are four support members 403 arranged in a rectangular shape. In other embodiments, the number of support members 403 is not limited to four; it can be three, five, six, seven, eight, or any other number, which is not limited here.

[0062] For ease of understanding, combined with Figures 1-5As shown, the working principle of the ignition mechanism provided in this application is as follows: In the initial state, the blocking member 3 is in a clearance position. When ignition is started, the drive assembly 4 drives the blocking member 3 to extend directly above the ignition needle 2 and thermocouple 1, and stops the blocking member 3 at its ignition position. At this time, the distance between the blocking member 3 and the ignition needle 2 is 3mm to 5mm, which can achieve high-quality ignition and avoid ignition problems caused by inconsistent ignition positions of the ignition needle 2. At the same time, the blocking member 3 can protect the thermocouple 1, prevent the main flame hole 402 from leaving the flame, ensure the normal valve intake of the thermocouple 1, and avoid accidental flameout. After ignition is completed, according to the valve intake signal of the thermocouple 1, the drive assembly 4 drives the blocking member 3 in the opposite direction to retract between the cap 500 and the inner flame cap 400, and stops at the clearance position that avoids the ignition needle 2 and thermocouple 1. At this time, the blocking member 3 can avoid affecting the combustion of the main flame hole 402 of the inner flame cap 400, thus improving thermal efficiency.

[0063] The foregoing has shown and described the basic principles, main features, and advantages of this application. Those skilled in the art should understand that the above embodiments do not limit this application in any way, and all technical solutions obtained by equivalent substitution or equivalent transformation fall within the protection scope of this application.

Claims

1. An ignition mechanism for a gas stove, characterized in that, The gas stove includes a thermocouple (1) and an ignition needle (2), both of which are located between the inner burner cap (400) and the outer burner cap (300). The ignition mechanism for the gas stove also includes: A shielding member (3) is movably disposed relative to the ignition needle (2); A drive assembly (4) is used to drive the shield (3) to move so that the shield (3) has an ignition position located directly above the ignition needle (2) and the thermocouple (1) and an avoidance position that avoids the ignition needle (2) and the thermocouple (1).

2. The ignition mechanism for a gas stove according to claim 1, characterized in that, The shield (3) is configured to be movably mounted on the inner flame cap (400) in a horizontal direction, and the shield (3) is located above the ignition needle (2) and the thermocouple (1).

3. The ignition mechanism for a gas stove according to claim 2, characterized in that, The drive assembly (4) includes a driver (41), a first link (42) and a second link (43). The first end of the second link (43) is hinged to the shield (3), and its second end is hinged to the first end of the first link (42). The driver (41) is connected to the second end of the first link (42) and is used to drive the first link (42) to move up and down in the vertical direction so that the second link (43) pulls the shield (3) to switch between the ignition position and the avoidance position.

4. The ignition mechanism for a gas stove according to claim 3, characterized in that, The ignition mechanism for the gas stove also includes a guide (5), which has a groove (51) extending in a horizontal direction, and a portion of the structure of the shield (3) is slidably installed in the groove (51).

5. The ignition mechanism for a gas stove according to claim 4, characterized in that, The shielding member (3) includes a shielding part (31), a sliding part (32) and a hinge part (33) connected in sequence. The shielding part (31) can be located directly above the ignition needle (2). The sliding part (32) is slidably engaged with the slide groove (51). The hinge part (33) is located outside the slide groove (51) and is hinged to the first end of the second connecting rod (43).

6. The ignition mechanism for a gas stove according to claim 5, characterized in that, The slide (51) has a guide portion (511) and an opening (512) communicating with the guide portion (511), and the width of the opening (512) is smaller than the width of the guide portion (511). The sliding portion (32) slides with the guide portion (511), and the hinge portion (33) extends from the opening (512) to the outside of the slide (51).

7. The ignition mechanism for a gas stove according to any one of claims 1-6, characterized in that, When the shield (3) is in the ignition position, the distance between the shield (3) and the ignition needle (2) is 3mm to 5mm.

8. A gas stove, characterized in that, include: Base (100); A burner head (200) is mounted on the base (100); An outer flame cap (300) is provided on the outer ring ejector tube of the furnace head (200); An inner flame cover (400) is provided on the outside of the central ejector tube of the burner head (200), and the inner flame cover (400) has an ignition hole (401) and a main flame hole (402) located above the ignition hole (401). According to any one of claims 1-7, the ignition needle (2) of the ignition mechanism for a gas stove is installed on the base (100) and located between the inner flame cap (400) and the outer flame cap (300), and the ignition needle (2) ignites the gas in the main flame hole (402) through the ignition hole (401).

9. The gas stove according to claim 8, characterized in that, The shielding member (3) of the ignition mechanism of the gas stove is movably installed on the upper surface of the inner flame cover (400). The gas stove also includes a cap (500) which covers the shielding member (3).

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