Fire power adjusting assembly and gas stove

Abstract

This application provides a firepower adjustment component and a gas stove, relating to the field of stove technology. The firepower adjustment component includes a knob and a distance detection device spaced apart from the knob. The knob includes a firepower level recognition structure located at an off-center position on the knob. The firepower level recognition structure and the distance detection device are arranged opposite each other along a first direction, and the firepower level recognition structure extends along a second direction. The knob can drive the firepower level recognition structure to rotate relative to the distance detection device, so that different positions of the firepower level recognition structure are opposite to the distance detection device. The first direction is the extension direction of the knob's rotation axis, and the second direction is the rotation direction of the knob. The firepower level recognition structure includes a rack structure extending along the second direction, and the rack structure has multiple grooves recessed along the first direction and in a direction away from the distance detection device. This facilitates accurate and reliable acquisition of the gas stove's firepower level information.

Description

Technical Field

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

[0002] A gas stove is a common kitchen appliance that cooks food by producing flames. A gas stove includes a flame control unit, which allows you to adjust the size of the flame produced by the stove.

[0003] In related technologies, the flame control assembly may include a knob and a valve housing. The knob is rotatably connected to the valve housing, and the valve housing is fixedly connected to the gas stove panel. The user can adjust the size of the flame produced by the gas stove by rotating the knob. A potentiometer or microswitch may be provided between the knob and the valve housing. The gas stove's flame level information can be obtained by applying pressure to different parts of the potentiometer or microswitch.

[0004] However, in related technologies, the reliability of obtaining the firepower level information of a gas stove by applying pressure to different parts of a potentiometer or microswitch is poor.

[0005] Therefore, how to accurately and reliably obtain the firepower level information of a gas stove has become an urgent problem to be solved in the field of gas stove design. Utility Model Content

[0006] This application aims to provide a firepower adjustment component and a gas stove, which facilitates the accurate and reliable acquisition of firepower level information of the gas stove.

[0007] The first aspect of this application provides a fire control assembly, which includes a knob and a distance detection device spaced apart from the knob.

[0008] The knob includes a power level identification structure located at an off-center position on the knob. The power level identification structure and the distance detection device are arranged opposite each other along a first direction. The power level identification structure extends along a second direction. The knob can drive the power level identification structure to rotate relative to the distance detection device so that different positions of the power level identification structure are opposite to the distance detection device. The distance detection device is used to detect the distance between the power level identification structure and the distance detection device in the first direction.

[0009] The first direction is the extension direction of the knob's rotation axis, and the second direction is the rotation direction of the knob.

[0010] The power level recognition structure includes a rack structure that extends along a second direction and has multiple grooves that are recessed along a first direction and toward the distance detection device.

[0011] The knob can be rotated between the off position and the adjustment limit position.

[0012] When the knob is between the off position and the adjustment limit position, the distance detection device is opposite to the rack structure.

[0013] According to the firepower adjustment component of this application embodiment, the surface of the rack structure opposite to the distance detection device is an uneven surface extending in a second direction. During the process of the rack structure rotating past the distance detection device, the distance detected by the distance detection device will change with the arrangement of the teeth and grooves of the rack structure. The number of grooves of the distance detection device that the knob has rotated through can be obtained by the change in the distance between the firepower level identification structure and the distance detection device in the first direction. The rotation position of the knob can be obtained by the number of grooves of the distance detection device that the knob has rotated through, and thus the firepower level information of the gas stove can be obtained.

[0014] The distance detection device is a non-contact detection device that is separated from the knob. The detection of the distance detection device is not easily affected by the rotation of the knob, which is conducive to accurately and reliably obtaining the firepower level information of the gas stove.

[0015] In one possible implementation, the tooth groove has a first groove wall located on one side of the tooth groove in a second direction, the first groove wall being an inclined structure that is inclined to the first direction and extends along the second direction.

[0016] In this way, as the distance detection device passes the first groove wall, the value detected by the distance detection device will gradually change, making it easier to identify the first groove wall and thus easier to identify the tooth groove. The rotation position of the knob can be obtained by the number of times the knob passes the first groove wall of the distance detection device.

[0017] In one possible implementation, the tooth groove has a second groove wall, with the first groove wall and the second groove wall located on both sides of the tooth groove in a second direction, and the second groove wall being a vertical structure parallel to the first direction.

[0018] Thus, when the second groove wall passes the distance detection device, the value detected by the distance detection device will change abruptly. By combining the pattern of the abrupt changes in the value detected by the distance detection device, it is beneficial to make an accurate determination of the distance of the tooth groove passing the distance detection device.

[0019] In one possible implementation, the rack structure further includes a first planar structure that is perpendicular to a first direction.

[0020] Along the second direction, the first planar structure and the tooth groove are arranged alternately, and two adjacent tooth grooves are connected by the first planar structure located between them.

[0021] In this way, the value obtained by the distance detection device remains constant as the first planar structure rotates past it. By combining this consistent value, accurate determination of the distance passing through the tooth groove is possible. Furthermore, the tooth grooves are spaced apart by the first planar structure, allowing for flexible groove arrangement and easier formation. Additionally, the flat tips of the teeth in the rack structure minimize the risk of detection issues caused by tooth wear.

[0022] In one possible implementation, the firepower level recognition structure further includes a second planar structure, with the rack structure and the second planar structure arranged along a second direction, and the second planar structure connected to the end of the rack structure in the second direction.

[0023] When the knob is in the off position, the distance detection device is opposite to the second plane structure.

[0024] This makes it easier to determine the ignition off position, which in turn makes it easier to determine the number of teeth on the distance detection device that the knob passes through when turning from the ignition off position to the adjustment limit position, and thus helps to determine the rotation position of the knob.

[0025] In one possible implementation, the second planar structure and the first planar structure of the rack structure are located on the same plane, making it easier to form the rack structure and the first planar structure.

[0026] In one possible implementation, the distance detection device is an infrared distance detection device, which makes the distance detection device less expensive and less susceptible to interference from the gas stove's operating environment, resulting in better detection reliability.

[0027] In one possible implementation, the knob also includes an outer ring structure located radially outside the fire level identification structure of the knob, and the outer ring structure surrounds the fire level identification structure in a second direction.

[0028] In this way, the outer ring structure can be used for user contact, making it less likely that the firepower level identification structure will affect the user's feel when using it.

[0029] A second aspect of this application provides a gas stove, which includes a panel and a fire control component as described in any of the above embodiments.

[0030] The knob of the fire control component is rotatably connected to the panel, and the distance detection device of the fire control component is fixedly connected to the panel.

[0031] In one possible implementation, the knob and the distance detection device are located on opposite sides of the panel in a first direction. The panel has a light-transmitting structure, and the distance detection device is opposite to the light-transmitting structure along the first direction.

[0032] This facilitates the acquisition of the gas stove's firepower level information by using optical devices such as infrared distance detection devices and laser distance detection devices, which are respectively arranged on both sides of the panel in the first direction, when the distance detection device is an optical device such as an infrared distance detection device or a laser distance detection device. Attached Figure Description

[0033] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0034] Figure 1 A schematic diagram of a gas stove provided in an embodiment of this application;

[0035] Figure 2 A schematic diagram of a knob provided in an embodiment of this application;

[0036] Figure 3 for Figure 2 Another diagram of the knob provided;

[0037] Figure 4 for Figure 2 A schematic diagram of the arrangement of the knobs and distance detection device provided in the document;

[0038] Figure 5 for Figure 2 A schematic diagram of the power level identification structure of the knob provided in the document;

[0039] Figure 6 for Figure 1 The diagram provided shows a gas stove with the knob not being pressed.

[0040] Figure 7 for Figure 1 The diagram provided shows a gas stove with the knob pressed.

[0041] Figure 8 for Figure 1 The graph provided shows the usage of a gas stove.

[0042] Explanation of reference numerals in the attached figures:

[0043] 10. Control panel; 20. Firepower adjustment assembly;

[0044] 100. Knob; 110. Power level identification structure; 111. Rack and pinion structure; 1111. First groove wall; 1112. Second groove wall; 1113. First planar structure; 112. Second planar structure; 120. Outer ring structure;

[0045] 200. Distance detection device;

[0046] 300. Valve stem;

[0047] 400. Light-transmitting structure;

[0048] X, first direction; Y, second direction;

[0049] G. Alveolar groove. Detailed Implementation

[0050] To make the objectives, technical solutions, and advantages of the embodiments of this application clearer, the technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application.

[0051] It should be noted that 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. Therefore, 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.

[0052] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "fixation," 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 direct connection or an indirect connection through an intermediate medium; they can refer to the connection within 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 according to the specific circumstances.

[0053] 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 is in indirect contact with the second feature through 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. "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.

[0054] In the above description, the terms "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of this application. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0055] Figure 1 This is a schematic diagram of a gas stove provided in an embodiment of this application. In the diagram, the X direction is the first direction, and the Y direction is the second direction.

[0056] like Figure 1 As shown in the figure, this application embodiment provides a gas stove, which includes a firepower adjustment component 20 and a panel 10. The firepower adjustment component 20 is disposed on the panel 10, and the panel 10 is used to be fixedly installed on the stove in the kitchen.

[0057] The firepower adjustment assembly 20 includes a knob 100, which is rotatably connected to the panel 10. The user can adjust the firepower of the gas stove by rotating the knob 100. The first direction is the extension direction of the rotation axis of the knob 100 and the thickness direction of the panel 10, and the second direction is the rotation direction of the knob 100.

[0058] Specifically, the firepower adjustment assembly 20 also includes a valve housing and a valve stem 300. The valve housing is fixedly connected to the panel 10, and a valve core is provided inside the valve housing. The knob 100 is connected to the valve core through the valve stem 300. The knob 100 is rotatably connected to the valve housing and the panel 10 through the valve stem 300 and the valve core. Rotating the knob 100 can drive the valve core to move, so as to adjust the firepower of the gas stove.

[0059] The valve body and the knob 100 are located on opposite sides of the panel 10 in the first direction. The panel 10 has a mounting hole, which is a through hole. The valve stem 300 passes through the mounting hole and can rotate relative to the panel 10 within the mounting hole.

[0060] To facilitate the execution of corresponding operations based on the gas stove's firepower level information, enabling functions such as firepower level information display via the app cloud, anti-dry-burning recognition, and linkage with the range hood, some related technologies incorporate a potentiometer or microswitch between the knob and the valve housing. The knob's rotation position is determined by the pressure applied to different parts of the potentiometer or microswitch, thus obtaining the gas stove's firepower level information based on the knob's rotation position.

[0061] However, in related technologies, potentiometers and microswitches are prone to problems such as mechanical jamming, which leads to inaccurate firepower level information. This makes it unreliable to obtain the firepower level information of the gas stove by applying pressure to different parts of the potentiometer or microswitch, which in turn affects the realization of functions such as firepower level information cloud display on the APP, anti-dry burning recognition, and range hood linkage.

[0062] Based on this, such as Figure 1 As shown, the firepower adjustment assembly 20 also includes a distance detection device 200 spaced apart from the knob 100. The distance detection device 200 is fixedly connected to the panel 10, and the knob 100 can rotate relative to the distance detection device 200.

[0063] For example, the distance detection device 200 can be fixedly connected to the panel 10 via a valve housing. The distance detection device 200 can also be fixedly connected to the panel 10 via other fasteners.

[0064] Figure 2 A schematic diagram of a knob provided in an embodiment of this application. Figure 3 for Figure 2 Another diagram of the knob provided. Figure 4 for Figure 2 The diagram provided shows the arrangement of the knobs and distance detection device. Figure 5 for Figure 2 The diagram provided shows the power level identification structure of the knob.

[0065] like Figures 2-5 As shown, the knob 100 includes a power level identification structure 110, which is located at an off-center position. The power level identification structure 110 and the distance detection device 200 are arranged opposite each other along a first direction, and the power level identification structure 110 extends along a second direction. The knob 100 can drive the power level identification structure 110 to rotate relative to the distance detection device 200, so that different positions of the power level identification structure 110 are opposite to the distance detection device 200. Specifically, by rotating the power level identification structure 110, different positions of the power level identification structure 110 in the second direction can be made opposite to the distance detection device 200.

[0066] The distance detection device 200 is used to detect the distance between the fire level identification structure 110 and the distance detection device 200 in the first direction.

[0067] The distance between the firepower level identification structure 110 and the distance detection device 200 in the first direction refers to the distance between the position of the firepower level identification structure 110 relative to the distance detection device 200 along the first direction and the distance detection device 200.

[0068] The fire level recognition structure 110 includes a rack structure 111, which extends along a second direction and has multiple grooves G recessed along a first direction and toward the distance detection device 200.

[0069] The knob 100 can be rotated between the off position and the adjustment limit position. When the knob 100 is rotated to any position, the distance detection device 200 is opposite to the fire level identification structure 110.

[0070] For example, knob 100 can be rotated counterclockwise from the off position to the adjustment limit position until it reaches the adjustment limit position. Knob 100 can also be rotated clockwise from the adjustment limit position to the off position until it reaches the off position.

[0071] For example, the angle at which the knob 100 rotates between the off position and the adjustment limit position can be less than or equal to 180°. For instance, the angle at which the knob 100 rotates between the off position and the adjustment limit position can be approximately 160°, 165°, 170°, 175°, 180°, etc.

[0072] When the knob 100 is between the off position and the adjustment limit position, the distance detection device 200 is opposite to the rack structure 111.

[0073] Thus, the surface of the rack structure 111 facing the distance detection device 200 is an uneven surface extending in the second direction. As the rack structure 111 rotates past the distance detection device 200, the distance detected by the distance detection device 200 will change with the arrangement of the teeth and grooves G of the rack structure 111. By measuring the change in the distance between the fire level identification structure 110 and the distance detection device 200 in the first direction, the number of grooves G that the knob 100 rotates past the distance detection device 200 can be obtained. By measuring the number of grooves G that the knob 100 rotates past the distance detection device 200, the rotation position of the knob 100 can be obtained, and thus the fire level information of the gas stove can be obtained.

[0074] The distance detection device 200 is a non-contact detection device spaced apart from the knob 100. The detection of the distance detection device 200 is not easily affected by the rotation of the knob 100, which is conducive to accurately and reliably obtaining the firepower level information of the gas stove.

[0075] For example, the number of teeth G that rotate counterclockwise through the distance detection device 200 can be determined by the number of times the distance detection device 200 rotates counterclockwise and the number of times it rotates clockwise through the distance detection device 200. The set direction can be either counterclockwise or clockwise.

[0076] For example, the number of times the knob 100 rotates through the teeth G of the distance detection device 200 from the ignition off position toward the adjustment limit position can be obtained by rotating it counterclockwise and clockwise from the ignition off position. Alternatively, the rotation position of the knob 100 can be determined by subtracting the number of times it rotates clockwise from the ignition off position to the number of times it rotates counterclockwise from the ignition off position.

[0077] In some examples, the gas stove also includes a processor that interacts with the distance detection device 200. The processor can begin calculating the number of teeth G that pass through the distance detection device 200 based on the signal generated when the gas stove's ignition circuit is turned on. For example, when the knob 100 is in the off position, ignition of the gas stove can be achieved by pressing the knob 100 and rotating it towards its adjustment limit position. When the knob 100 is pressed and rotated from the off position towards its adjustment limit position, the gas stove's ignition circuit is turned on.

[0078] In some examples, the processor can also be used to interact with terminal devices such as mobile phones to display information such as the gas stove's firepower level and anti-dry burning alarm information via mobile phone terminal devices.

[0079] In some examples, the processor can also be used to interact with the range hood, allowing the range hood to adjust its fan speed based on the gas stove's heat setting. For instance, the range hood can automatically adjust to a high fan speed setting based on information that the gas stove is at a high heat setting.

[0080] In some possible implementations, the fire level identification structure 110 further includes a second planar structure 112, with the rack structure 111 and the second planar structure 112 arranged along a second direction, and the second planar structure 112 connected to the end of the rack structure 111 in the second direction. When the knob 100 is in the off position, the distance detection device 200 is opposite to the second planar structure 112.

[0081] This makes it easier to determine the ignition off position, which in turn makes it easier to determine the number of teeth G of the distance detection device 200 through which the knob 100 rotates from the ignition off position to the adjustment limit position, and thus helps to determine the rotation position of the knob 100.

[0082] For example, the rack structure 111 can rotate about half a turn around the knob 100 in the second direction. The second planar structure 112 can rotate about half a turn around the knob 100 in the second direction, and the second planar structure 112 can be a semi-circular torus. The two ends of the rack structure 111 in the second direction are respectively connected to the two ends of the second planar structure 112 in the second direction.

[0083] In some examples, the distance detection device 200 is an infrared distance detection device, which makes the distance detection device 200 less expensive and its detection is not easily affected by the gas stove's operating environment, resulting in better detection reliability.

[0084] For example, the distance detection device 200 can be an infrared ranging sensor.

[0085] Of course, the distance detection device 200 can also be other types of distance detection devices such as laser distance detection devices and ultrasonic distance detection devices.

[0086] In some examples, the knob 100 and the distance detection device 200 are located on opposite sides of the panel 10 in a first direction.

[0087] In this way, the panel 10 can protect the distance detection device 200, making the distance detection device 200 less prone to damage and helping to extend the service life of the distance detection device 200.

[0088] In some examples, panel 10 has a light-transmitting structure 400. Along a first direction, distance detection device 200 is opposite to light-transmitting structure 400, which allows light to pass through panel 10.

[0089] This makes it convenient to obtain the firepower level information of the gas stove by means of the distance detection device 200 and the knob 100 respectively arranged on both sides of the panel 10 in the first direction when the distance detection device 200 is a device that needs to acquire infrared, laser or other light for distance detection.

[0090] In some examples, the light-transmitting structure 400 can be a light-transmitting hole.

[0091] In other examples, the light-transmitting structure 400 can also be a transparent glass structure.

[0092] In some possible implementations, the knob 100 also includes an outer ring structure 120, which is located on the radially outer side of the power level identification structure 110 and surrounds the power level identification structure 110 in a second direction.

[0093] In this way, the outer ring structure 120 can be used for user contact, making the fire level recognition structure 110 less likely to affect the user's feel when using it.

[0094] like Figure 5 As shown, the tooth groove G has a first groove wall 1111 and a second groove wall 1112, which are located on both sides of the tooth groove G in a second direction. The first groove wall 1111 and the second groove wall 1112 are the tooth surfaces of the teeth of the rack structure 111.

[0095] In some possible implementations, the first groove wall 1111 is an inclined structure that is inclined to the first direction and extends along the second direction.

[0096] In this way, as the first groove wall 1111 rotates past the distance detection device 200, the value detected by the distance detection device 200 will gradually change, making it easier to identify the first groove wall 1111 and thus easier to identify the tooth groove G. The rotation position of the knob 100 can be obtained by the number of times the knob 100 rotates past the first groove wall 1111 of the distance detection device 200.

[0097] From one end of the first groove wall 1111 in the second direction to the other end of the first groove wall 1111 in the second direction, the distance between the first groove wall 1111 and the distance detection device 200 gradually changes in the first direction. When the first groove wall 1111 is opposite the distance detection device 200 at different positions in the second direction, the distance between the fire level identification structure 110 detected by the distance detection device 200 and the distance detection device 200 in the first direction is different.

[0098] In some possible implementations, the second groove wall 1112 is a vertical structure parallel to the first direction.

[0099] Thus, when the second groove wall 1112 rotates past the distance detection device 200, the value detected by the distance detection device 200 will undergo a sudden change. By combining the pattern of the sudden change in the value detected by the distance detection device 200, it is beneficial to make an accurate determination of the distance of the tooth groove G as it rotates past the distance detection device 200.

[0100] For example, in the same tooth groove G, one end of the first groove wall 1111 that is away from the distance detection device 200 along the first direction is connected to one end of the second groove wall 1112 that is away from the distance detection device 200 along the first direction.

[0101] In some possible implementations, the rack structure 111 further includes a first planar structure 1113, which is perpendicular to a first direction. Along a second direction, the first planar structure 1113 is arranged alternately with the tooth grooves G, and two adjacent tooth grooves G are connected by the first planar structure 1113 located between them.

[0102] Thus, as the first planar structure 1113 rotates past the distance detection device 200, the value obtained by the distance detection device 200 remains unchanged. By combining this consistent value obtained by the distance detection device 200, it is easier to accurately determine the distance of the tooth groove G as it rotates past the distance detection device 200. Furthermore, the tooth grooves G are spaced apart by the first planar structure 1113, allowing for flexible placement and easier formation. Additionally, the teeth of the rack structure 111 have gentle tips, reducing the likelihood of wear affecting detection.

[0103] For example, the first planar structure 1113 is the tooth tip surface of the rack structure 111.

[0104] For example, one end of the first planar structure 1113 is connected to the first groove wall 1111 of one of the two adjacent tooth grooves G, and the other end of the first planar structure 1113 is connected to the second groove wall 1112 of the other tooth groove G.

[0105] In some possible implementations, the second planar structure 112 and the first planar structure 1113 are located in the same plane, making it easier to form the rack structure 111 and the first planar structure 1113.

[0106] For example, the rack structure 111 can be formed by creating a plurality of slots arranged in the second direction on the end face of the knob 100 opposite to the distance detection device 200, with each slot forming a tooth groove G. A portion of the end face of the knob 100 opposite to the distance detection device 200 forms a first planar structure 1113 and a portion forms a second planar structure 112.

[0107] For example, one of the two toothed grooves G located at both ends of the rack structure 111 is connected to one end of the second planar structure 112 through the first groove wall 1111, and the other is connected to the other end of the second planar structure 112 through the second groove wall 1112.

[0108] For example, the end face of the knob 100 opposite to the distance detection device 200 may include other structures besides the rack structure 111 and the second plane structure 112.

[0109] In some possible implementations, the tooth groove G may also have a third groove wall located between the first groove wall 1111 and the second groove wall 1112, which are connected by the third groove wall. The third groove wall can be a planar structure perpendicular to the first direction or an inclined structure inclined to the first direction. This can further improve the accuracy of tooth groove G identification.

[0110] In some possible implementations, each tooth groove G of the rack structure 111 has the same dimension in the first direction. This facilitates accurate determination of the rotation distance of the tooth groove G by the detection device 200.

[0111] For example, each tooth of the rack structure 111 has the same size in the first direction.

[0112] For example, the first groove wall 1111 of each tooth groove G has the same dimension in the first direction.

[0113] For example, the second groove wall 1112 of each tooth groove G has the same dimension in the first direction.

[0114] Figure 6 for Figure 1 The diagram provided shows the gas stove with the knob not being pressed. Figure 7 for Figure 1 The diagram provided shows the gas stove with the knob pressed. Figure 8 for Figure 1 The graph provided shows the usage of a gas stove.

[0115] like Figure 6 , Figure 7 As shown, the dimension of the tooth groove G in the first direction is E. The distance between the power level identification structure 110 and the distance detection device 200 in the first direction, as detected by the distance detection device 200, is d. When the button is not pressed, the distance between the end of the tooth groove G near the reference plane and the reference plane is A1, and the distance between the end of the tooth groove G away from the reference plane and the reference plane is B1. The reference plane is a plane perpendicular to the first direction and where the detection end of the distance detection device 200 is located. d is the distance between the relative positions of the power level identification structure 110 and the distance detection device 200 and the reference plane. When the button is pressed, the distance between the end of the tooth groove G near the reference plane and the reference plane is A2, and the distance between the end of the tooth groove G away from the reference plane and the reference plane is B2.

[0116] Specifically, the dimension of the first groove wall 1111 and the second groove wall 1112 in the first direction is E. When the button is not pressed, the distance between the end of the first groove wall 1111 and the second groove wall 1112 closest to the reference plane and the reference plane is A1, and the distance between the end of the first groove wall 1111 and the second groove wall 1112 furthest from the reference plane and the reference plane is B1. When the button is pressed, the distance between the end of the first groove wall 1111 and the second groove wall 1112 closest to the reference plane and the reference plane is A2, and the distance between the end of the first groove wall 1111 and the second groove wall 1112 furthest from the reference plane and the reference plane is B2.

[0117] like Figure 8As shown, when the gas stove is ignited, the knob 100, which is in the off position, is pressed and rotates towards its adjustment limit. When the knob 100 is pressed in the off position, the value detected by the distance detection device 200 can change from A1 to A2. When the tooth groove G rotates counterclockwise past the distance detection device 200, a first change curve S1 is formed. When the tooth groove G rotates clockwise past the distance detection device 200, a second change curve S2 is formed. The number of tooth grooves G that the knob 100 rotates from the off position to the adjustment limit position past the distance detection device 200 can be obtained based on the number of the first change curve S1 and the second change curve S2, thereby obtaining the gas stove's flame level information.

[0118] Since the position of the knob 100 may vary, when the knob 100 is pressed in the off position, the value detected by the distance detection device 200 may also be between A1 and A2.

[0119] In some examples, the number of tooth grooves G passing through the distance detection device 200 can be calculated based on a preset value abrupt change in the value detected by the distance detection device 200. The preset value is greater than E. The preset value can be δA, where δA = A1 - A2, or it can be less than δA.

[0120] For example, when the value detected by the distance detection device 200 first experiences a sudden change of magnitude E, then gradually decreases, and then remains constant, it is counted as one tooth groove G rotating counterclockwise through the distance detection device 200. When the value detected by the distance detection device 200 first remains constant, then gradually increases, and then experiences a sudden change of magnitude E, it is counted as one tooth groove G rotating clockwise through the distance detection device 200.

[0121] For example, the following settings can be defined: when the knob 100 is turned from the off position to the adjustment limit position, the distance detection device 200 can be rotated through 1 groove G to define the medium flame setting; when the knob 100 is turned from the off position to the adjustment limit position, the distance detection device 200 can be rotated through 2 grooves G to define the high flame setting; when the knob 100 is turned from the off position to the adjustment limit position, the distance detection device 200 can be rotated through 3 grooves G to define the medium flame setting; and when the knob 100 is turned from the off position to the adjustment limit position, the distance detection device 200 can be rotated through 4 grooves G to define the low flame setting.

[0122] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A fire regulation assembly (20) characterized by, Includes a knob (100) and a distance detection device (200) spaced apart from the knob (100). The knob (100) includes a power level identification structure (110), which is located at an off-center position on the knob (100). The power level identification structure (110) and the distance detection device (200) are arranged opposite each other along a first direction. The power level identification structure (110) extends along a second direction. The knob (100) can drive the power level identification structure (110) to rotate relative to the distance detection device (200) so that different positions of the power level identification structure (110) are opposite to the distance detection device (200). The distance detection device (200) is used to detect the distance between the power level identification structure (110) and the distance detection device (200) in the first direction. Wherein, the first direction is the extension direction of the rotation axis of the knob (100), and the second direction is the rotation direction of the knob (100); The firepower level identification structure (110) includes a rack structure (111) that extends along the second direction and has a plurality of grooves (G) that are recessed along the first direction and away from the distance detection device (200). The knob (100) can be rotated between the off position and the adjustment limit position; When the knob (100) is between the off position and the adjustment limit position, the distance detection device (200) is opposite to the rack structure (111).

2. The fire regulation assembly (20) according to claim 1, characterized in that The tooth groove (G) has a first groove wall (1111), which is located on one side of the tooth groove (G) in the second direction. The first groove wall (1111) is an inclined structure that is inclined to the first direction and extends along the second direction.

3. The fire regulation assembly (20) according to claim 2, characterized in that The tooth groove (G) has a second groove wall (1112), the first groove wall (1111) and the second groove wall (1112) are respectively located on both sides of the tooth groove (G) in the second direction, and the second groove wall (1112) is a vertical structure parallel to the first direction.

4. The flame adjustment assembly (20) of claim 1, wherein, The rack structure (111) further includes a first planar structure (1113), which is perpendicular to the first direction; Along the second direction, the first planar structure (1113) and the tooth groove (G) are arranged alternately, and two adjacent tooth grooves (G) are connected by the first planar structure (1113) located between them.

5. The fire regulation assembly (20) according to any one of claims 1-4, characterized in that The firepower level identification structure (110) further includes a second planar structure (112), the rack structure (111) and the second planar structure (112) are arranged along the second direction, and the second planar structure (112) is connected to the end of the rack structure (111) in the second direction; When the knob (100) is in the off position, the distance detection device (200) is opposite to the second planar structure (112).

6. The fire regulation assembly (20) according to claim 5, characterized in that The second planar structure (112) and the first planar structure (1113) of the rack structure (111) are located on the same plane.

7. The fire regulation assembly (20) according to any one of claims 1-4, characterized in that The distance detection device (200) is an infrared distance detection device.

8. The fire regulation assembly (20) according to any one of claims 1-4, characterized in that The knob (100) also includes an outer ring structure (120), which is located on the radial side of the fire level identification structure (110) of the knob (100) and surrounds the fire level identification structure (110) in the second direction.

9. A gas hob, characterized in that Includes a panel (10) and a fire control assembly (20) as described in any one of claims 1-8; The knob (100) of the firepower adjustment component (20) is rotatably connected to the panel (10), and the distance detection device (200) of the firepower adjustment component (20) is fixedly connected to the panel (10).

10. The gas hob according to claim 9, characterized in that The knob (100) and the distance detection device (200) are respectively located on both sides of the panel (10) in the first direction; The panel (10) has a light-transmitting structure (400). Along the first direction, the distance detection device (200) is opposite to the light-transmitting structure (400).

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