Gas stove

Abstract

The application relates to the technical field of kitchen utensils, in particular to a gas stove. The gas stove comprises a stove table, a knob, a magnetic structure, an induction coil, a detection piece and a control assembly; the stove table is provided with a table top, and an assembly space is arranged below the table top; the knob comprises a rotating rod and a rotating shell sleeved on the rotating rod, the rotating rod is rotationally connected to the stove table, and the rotating shell is arranged above the table top and is provided with a first accommodating cavity; the magnetic structure comprises at least two magnetic parts which are arranged in a circumferential direction of the knob and are spaced apart, and the magnetic force of each magnetic part is different; in the height direction of the stove table, the projection of the induction coil and the projection of one of the magnetic parts are arranged in an overlapping mode, the induction coil is configured to generate an induced current in response to the rotation of the knob, one of the induction coil and the magnetic structure is mounted in the first accommodating cavity, and the other is mounted in the assembly space. The knob is rotated to make the induction coil cut the magnetic field, generate currents of different sizes, and according to the current detection signal of the detection piece, the control assembly can accurately control the size of the fire.

Description

Technical Field

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

[0002] A gas stove consists of a cooktop, on which are mounted burners and knobs. Below the cooktop is a valve body. The knob is mechanically connected to a valve core within the valve body. Turning the knob controls the rotation of the valve core, thus controlling the flame intensity. However, the lever arm between the knob and the valve core is relatively long. Over time, this can cause structural deformation of both the knob and the valve core, resulting in a precision deviation when adjusting the flame intensity and making it impossible to accurately control the flame size. Utility Model Content

[0003] Therefore, it is necessary to provide a gas stove to improve the precision of firepower control.

[0004] A gas stove includes a cooktop, a knob, a magnetic structure, an induction coil, a detection element, and a control assembly. The cooktop has a surface, and an assembly space is constructed below the surface. The knob includes a rotating rod and a rotating housing sleeved on the rotating rod. The rotating rod is rotatably connected to the cooktop, and the rotating housing is located above the surface and has a first receiving cavity. The magnetic structure includes at least two magnetic parts spaced apart circumferentially along the knob, and each magnetic part has a different magnetic force. Along the height direction of the cooktop, the projection of the induction coil overlaps with the projection of one of the magnetic parts, and the induction coil is configured to generate an induced current in response to the rotation of the knob. The detection element is installed in the assembly space and electrically connected to the induction coil. The control assembly is installed in the assembly space and electrically connected to the detection element. One of the induction coil and the magnetic structure is installed in the first receiving cavity, and the other is installed in the assembly space.

[0005] Understandably, rotating the knob causes the magnetic structure to rotate relative to the induction coil. The rotation of the magnetic parts within the magnetic structure causes the induction coil to cut the magnetic field, generating an induced current. Since the magnetic forces of at least two magnetic parts are different, the current generated by the induction coil is also different. The detection element can detect the magnitude of the induced current and transmit this detection signal to the control component. The control component controls the flame intensity of the gas stove based on the detection signal. Different current magnitudes correspond to different flame intensity levels, making the flame intensity control more precise. Even after prolonged use, there will be no structural deformation, ensuring accurate flame intensity control over extended periods.

[0006] In one embodiment, along the circumference of the knob, the magnetic force of at least two of the magnetic parts increases or decreases sequentially.

[0007] In one embodiment, the materials and shapes of each of the magnetic parts are the same, and the volumes of at least two of the magnetic parts increase or decrease sequentially along the circumference of the knob; or, the volumes and shapes of each of the magnetic parts are the same, and the magnetic properties of the materials of each of the magnetic parts increase or decrease sequentially along the circumference of the knob.

[0008] In one embodiment, the magnetic poles on both sides of each of the magnetic parts are opposite along the circumference of the knob.

[0009] In one embodiment, the induction coil is arranged in a spiral shape along the circumference of the knob.

[0010] In one embodiment, along the radial direction of the knob, the magnetic portion gradually increases in size along the circumferential direction of the knob in a direction outward from the axis of the knob.

[0011] In one embodiment, the induction coil is located on the edge of the magnetic structure opposite to the axis of the knob, along the radial direction of the knob.

[0012] In one embodiment, the gas stove further includes a mounting housing located within the assembly space. The mounting housing is fixedly installed on the inner wall of the stove platform. The mounting housing is located below the rotating housing and has a second receiving cavity. One of the induction coil and the magnetic structure is installed in the first receiving cavity, and the other is installed in the second receiving cavity.

[0013] In one embodiment, the control components are arranged at intervals from the knob along its radial direction.

[0014] In one embodiment, the control component includes a drive element and a control valve connected to the drive element, the drive element being electrically connected to the detection element. Attached Figure Description

[0015] To more clearly illustrate the technical solutions in the embodiments of this application or the conventional technology, the drawings used in the description of the embodiments or the conventional technology will be briefly introduced below. Obviously, the 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.

[0016] Figure 1 This is a structural diagram of the gas stove provided in this application;

[0017] Figure 2 A partial structural diagram of the interior of the gas stove provided in this application;

[0018] Figure 3 A partial sectional view of the gas stove provided in this application;

[0019] Figure 4 A schematic diagram of the magnetic structure in the gas stove provided in this application;

[0020] Figure 5 This is a cross-sectional view of the control valve in the gas stove provided in this application.

[0021] Reference numerals: 100, gas stove; 10, stovetop; 11, countertop; 101, assembly space; 20, knob; 21, rotary rod; 22, rotating housing; 221, first receiving cavity; 30, magnetic structure; 31, magnetic part; 40, induction coil; 50, detection element; 60, control component; 61, driving element; 62, control valve; 621, valve body; 6211, valve cavity; 6212, air inlet; 6213, limiting protrusion; 622, valve core; 6221, air hole; 70, mounting housing; 71, second receiving cavity. Detailed Implementation

[0022] 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.

[0023] It should be noted that when a component is referred to as being "fixed to," "set on," or "properly placed on" another component, it can be directly on the other component or there may be an intermediate component. When a component is considered to be "connected to" another component, it can be directly connected to the other component or there may be an intermediate component present. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used in this application's specification are for illustrative purposes only and do not represent the only possible implementation.

[0024] Furthermore, the terms "first" and "second" are used 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 as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0025] In this application, unless otherwise expressly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature and the second feature are in indirect contact through an intermediate medium. Furthermore, "above," "over," and "on top" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply indicates that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply indicates that the first feature is at a lower horizontal level than the second feature.

[0026] Unless otherwise defined, all technical and scientific terms used in this application have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used in this application is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used in this application includes any and all combinations of one or more of the associated listed items.

[0027] Please see Figures 1 to 5 This application provides a gas stove 100, which includes a stove 10, a countertop 11, an assembly space 101 below the countertop 11, and a burner on the countertop 11 for placing and heating cookware.

[0028] like Figure 3 As shown, the gas stove 100 also includes a knob 20, which includes a rotating rod 21 and a rotating housing 22 sleeved on the rotating rod 21. The rotating rod 21 is rotatably connected to the stovetop 10, and the rotating housing 22 is located above the countertop 11 and has a first receiving cavity 221. Different sized flame indicators are provided on the knob 20 or the countertop 11. The user can switch the flame level by rotating the knob 20 to align it with the flame indicator. In a specific embodiment, a rotating support is installed between the rotating rod 21 and the stovetop 10 to support the rotation of the rotating rod 21; for example, the rotating support is a bearing.

[0029] like Figures 2 to 4As shown, the gas stove 100 includes a magnetic structure 30 and an induction coil 40. The magnetic structure 30 includes at least two magnetic parts 31 spaced apart circumferentially along the knob 20, and each magnetic part 31 has a different magnetic force. Along the height direction of the stove 10, the projection of the induction coil 40 overlaps with the projection of one of the magnetic parts 31, that is, when the knob 20 is rotated, the magnetic induction lines of the magnetic part 31 are cut by the induction coil 40, and the induction coil 40 is configured to generate an induced current in response to the rotation of the knob 20. One of the induction coil 40 and the magnetic structure 30 is installed in the first receiving cavity 221, and the other is installed in the assembly space 101. That is, one of the induction coil 40 and the magnetic structure 30 is installed in the rotating housing 22, and the other is located in the assembly space 101 of the stove 10. Thus, when the knob 20 is rotated, the magnetic structure 30 rotates relative to the induction coil 40. This rotation of the magnetic structure 30 allows for switching between different magnetic forces of the magnetic part 31 and the induction coil 40. During the rotation of the magnetic part 31, the induction coil 40 cuts magnetic field lines, thereby generating an induced current. The magnitude of the induced current generated by the induction coil 40 varies depending on the magnetic force of the magnetic part 31 when it overlaps with the projection of the induction coil 40. Through the cooperation of the magnetic structure 30 and the induction coil 40, when the user rotates the knob 20 to the corresponding fire level indicator, the induction coil 40 can generate a corresponding current for precise fire control.

[0030] In a specific embodiment, the gas stove 100 further includes a detection element 50 and a control component 60. The detection element 50 is installed in the assembly space 101 and electrically connected to the induction coil 40. The control component 60 is installed in the assembly space 101 and electrically connected to the detection element 50. The detection element 50 can detect the magnitude of the current generated by the induction coil 40 and feed the detection signal back to the control component 60, which then controls the flame intensity.

[0031] In summary, by rotating the knob 20, the magnetic parts 31 with different magnetic forces rotate relative to each other to cooperate with the induction coil 40, so that the induction coil 40 cuts the magnetic field lines to generate a current of corresponding magnitude, and the current magnitude signal is fed back to the control component 60 through the detection element 50, thereby achieving precise control of the firepower. Even after long-term use, there will be no deformation of the mechanical structure that would affect the accuracy.

[0032] In a specific embodiment, the magnetic force of at least two magnetic parts 31 increases or decreases sequentially along the circumference of the knob 20. This allows the magnetic force of the magnetic parts 31 to increase or decrease sequentially when the user rotates the knob 20 clockwise or counterclockwise, making the user's control of the firepower more regular and convenient. For example, when the user rotates the knob 20 clockwise, the magnetic force of at least two magnetic parts 31 increases sequentially. At this time, the current generated by the corresponding induction coil 40 also increases, corresponding to the user's need for greater firepower, making it easier for the control component 60 to control the increase in firepower.

[0033] In a specific embodiment, the materials and shapes of each magnetic part 31 are the same. Along the circumference of the knob 20, the volume of at least two magnetic parts 31 increases or decreases sequentially, that is, by changing the size of the volume of the magnetic parts 31, the magnetic force between at least two magnetic parts 31 is different.

[0034] In specific embodiments, all magnetic parts 31 have the same volume and shape, facilitating standardized processing and assembly. Simultaneously, the magnetic properties of the materials used in each magnetic part 31 increase or decrease sequentially along the circumference of the knob 20, allowing for different magnetic forces to be generated by using different materials. For example, the magnetic part 31 may use neodymium iron boron magnets to achieve a larger magnetic force; or, the magnetic part 31 may use ferrite magnets to achieve a lower magnetic force.

[0035] like Figure 4 As shown, in a specific embodiment, the magnetic part 31 is configured as a magnetic block, with at least two magnetic blocks spaced apart, which makes processing simple.

[0036] In a specific embodiment, along the circumference of the knob 20, the magnetic poles on both sides of each magnetic part 31 are opposite, that is, one side of the magnetic part 31 is the N pole and the other side is the S pole.

[0037] like Figure 2 As shown, in a specific embodiment, the induction coil 40 extends spirally along the circumference of the knob 20. When the magnetic part 31 rotates circumferentially along the knob 20 to the induction coil 40, since the direction of the magnetic field lines along the circumference of the knob 20 is from the N pole to the S pole, the induction coil 40 cuts the magnetic field lines in a direction perpendicular to the magnetic field lines, thereby generating a current in the induction coil 40. The spiral extension of the induction coil 40 helps to increase the tightness of the cut, resulting in a significant current induction that is easy to detect. In other embodiments, the induction coil 40 can also be configured as a single frame.

[0038] like Figure 4As shown, in a specific embodiment, along the radial direction of the knob 20, the magnetic part 31 gradually increases in size from the axis of the knob 20 outwards, so that the magnetic field area gradually increases from the radial direction of the knob 20 outwards, thereby making full use of the space inside the rotating housing 22. For example, the projection of the magnetic part 31 along the height direction is fan-shaped.

[0039] In a specific embodiment, along the radial direction of the knob 20, the induction coil 40 is disposed on the edge of the magnetic structure 30 away from the axis of the knob 20, so as to adapt to the structure of the magnetic part 31 gradually increasing in the radial direction of the knob 20 outward from the axis of the knob 20, so that the induction coil 40 can be set to a longer length for cutting magnetic field lines, which is conducive to quickly sensing changes in magnetic field lines and facilitating detection.

[0040] like Figure 2 and Figure 3 As shown, in a specific embodiment, the gas stove 100 further includes a mounting housing 70 located within the assembly space 101. The mounting housing 70 is fixedly installed on the inner wall of the stove 10. The mounting housing 70 is located below the rotating housing 22 and has a second receiving cavity 71. One of the induction coil 40 and the magnetic structure 30 is installed in the first receiving cavity 221, and the other is installed in the second receiving cavity 71. Thus, the mounting housing 70 is provided to facilitate the fixed assembly of the induction coil 40 or the magnetic structure 30. For example, the induction coil 40 is installed in the first receiving cavity 221 of the rotating housing 22, and the magnetic structure 30 is located in the second receiving cavity 71 of the mounting housing 70; or, the induction coil 40 is installed in the second receiving cavity 71 of the mounting housing 70, and the magnetic structure 30 is installed in the first receiving cavity 221 of the rotating housing 22.

[0041] like Figure 2 As shown, in a specific embodiment, the control component 60 is arranged at intervals from the knob 20 along the radial direction of the knob 20. When oil stains on the table 11 penetrate into the assembly space 101 from the knob 20, they will not directly enter and adhere to the control component 60, which helps to protect the control component 60 and extend its service life.

[0042] In a specific embodiment, the detection element 50 is provided with a current detection chip, which is used to detect the magnitude of the current.

[0043] like Figure 2 and Figure 3 As shown in the specific embodiment, the control component 60 includes a drive component 61 and a control valve 62 connected to the drive component 61. The drive component 61 is electrically connected to the detection component 50. After receiving the detection signal from the detection component 50, the drive component 61 can control the activity of the control valve 62, thereby further realizing the control of the firepower.

[0044] like Figure 5 As shown, in a specific embodiment, the drive unit 61 includes an output shaft; the control valve 62 includes a valve body 621 and a valve core 622. The valve body 621 is configured with an air inlet 6212, an air outlet, and a valve cavity 6211. The valve cavity 6211 has an axis. The air inlet 6212 and the air outlet are spaced apart around the axis and are respectively connected to the valve cavity 6211. The valve core 622 is located inside the valve cavity 6211 and connected to the output shaft. The valve core 622 is attached to the cavity wall of the valve cavity 6211 and extends circumferentially around the axis of the valve cavity 6211. The valve core 622 is configured with an air hole 6221 that communicates with the valve cavity 6211. The air hole 6221 is arranged radially through the valve core 622. The air inlet 6212 communicates with the air outlet through the air hole 6221. The communication state between the air hole 6221 and the air outlet is switched by the rotation of the valve core 622, thereby switching the communication state between the air inlet 6212 and the air outlet.

[0045] In a specific embodiment, the valve body 621 has at least two air outlets spaced apart around the axis of the valve cavity 6211, and the valve core 622 has at least two air holes 6221 spaced apart around the axis of the valve cavity 6211 with gradually increasing or decreasing sizes. By connecting the air outlets with air holes 6221 of different sizes, the flame intensity can be adjusted. For example, if the air outlet is connected to a larger air hole 6221, the air inlet 6212 can output more gas to the air outlet, so that the flame intensity can be adjusted to be greater; conversely, if the air outlet is connected to a smaller air hole 6221, less gas is output from the air outlet, so that the flame intensity can be reduced. By setting air holes 6221 spaced apart around the axis of the valve cavity 6211 with gradually increasing or decreasing sizes, the flame intensity can be switched step by step when the valve core 622 rotates.

[0046] like Figure 5 As shown, in a specific embodiment, the cavity wall of the valve cavity 6211 is provided with a limiting protrusion 6213, which is used to limit the rotation of the valve core 622 and realize the stop at the beginning and end of the firepower adjustment.

[0047] In a specific embodiment, the air inlet 6212 is connected to a gas source via a pipeline to facilitate gas supply, and the air outlet is connected to a nozzle to deliver gas to the burner.

[0048] 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.

[0049] 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 scope of protection of this application. Therefore, the patent protection scope of this application should be determined by the appended claims.

Claims

1. A gas stove, characterized in that, include: The stove (10) has a countertop (11) and an assembly space (101) is constructed below the countertop (11). The knob (20) includes a rotating rod (21) and a rotating housing (22) sleeved on the rotating rod (21). The rotating rod (21) is rotatably connected to the stove (10). The rotating housing (22) is located above the countertop (11) and has a first receiving cavity (221). The magnetic structure (30) includes at least two magnetic parts (31) arranged circumferentially spaced along the knob (20), and the magnetic force of each magnetic part (31) is different; An induction coil (40) is provided along the height direction of the stove (10), with the projection of the induction coil (40) overlapping the projection of one of the magnetic parts (31), and the induction coil (40) is configured to generate an induced current in response to the rotation of the knob (20). The detection component (50) is installed in the assembly space (101) and electrically connected to the induction coil (40); A control component (60) is installed in the assembly space (101) and electrically connected to the detection component (50); One of the induction coil (40) and the magnetic structure (30) is installed in the first receiving cavity (221), and the other is installed in the assembly space (101).

2. The gas stove according to claim 1, characterized in that, Along the circumference of the knob (20), the magnetic force of at least two of the magnetic parts (31) increases or decreases sequentially.

3. The gas stove according to claim 1, characterized in that, All of the magnetic parts (31) are made of the same material and have the same shape. Along the circumference of the knob (20), the volume of at least two of the magnetic parts (31) increases or decreases sequentially; or, all of the magnetic parts (31) are made of the same material and have the same shape. The magnetic properties of the material of each of the magnetic parts (31) increase or decrease sequentially along the circumference of the knob (20).

4. The gas stove according to claim 1, characterized in that, Along the circumference of the knob (20), the magnetic poles on both sides of each of the magnetic parts (31) are opposite.

5. The gas stove according to claim 4, characterized in that, The induction coil (40) extends in a spiral shape along the circumference of the knob (20).

6. The gas stove according to claim 1, characterized in that, Along the radial direction of the knob (20), the magnetic part (31) gradually increases in size in the direction outward from the axis of the knob (20) along the circumferential dimension of the knob (20).

7. The gas stove according to claim 6, characterized in that, Along the radial direction of the knob (20), the induction coil (40) is located on the edge of the magnetic structure (30) opposite to the axis of the knob (20).

8. The gas stove according to claim 1, characterized in that, The gas stove also includes an installation housing (70) located in the assembly space (101). The installation housing (70) is fixedly installed on the inner wall of the stove (10). The installation housing (70) is located below the rotating housing (22) and has a second receiving cavity (71). One of the induction coil (40) and the magnetic structure (30) is installed in the first receiving cavity (221), and the other is installed in the second receiving cavity (71).

9. The gas stove according to claim 1, characterized in that, Along the radial direction of the knob (20), the control component (60) is arranged at intervals from the knob (20).

10. The gas stove according to claim 1, characterized in that, The control component (60) includes a drive element (61) and a control valve (62) connected to the drive element (61), the drive element (61) being electrically connected to the detection element (50).

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