Gear detection method for kitchen range

Abstract

The invention discloses a stove gear detection method which comprises the following steps: starting a detection unit to rotate along with a body, and generating a starting signal; the controller starts one or more of a radial detection part and an axial detection part of the position detection unit according to the starting signal; the opened detection parts in the axial detection part and the radial detection part detect the axial position and the radial position of the body in real time and generate corresponding axial signals and radial signals; starting the detection unit to generate a rotation completion signal after the rotation of the body is completed; the controller obtains the current axial signal and the current radial signal according to the rotation completion signal and judges the current gear of the cooker according to the current axial signal and the current radial signal; or, the current radial signal is obtained, and the current gear of the cooker is judged according to the current radial signal. In the scheme, large power consumption caused by the fact that the position detection unit is in a working state for a long time is avoided; a detection signal of the position detection unit is accurately obtained, and the detection precision and accuracy are improved; the misjudgment condition is avoided, and the detection accuracy is further improved.

Description

Technical Field

[0001] The invention relates to a method for detecting a gear position of a stove. Background Art

[0002] With the development of technology, kitchen appliances are becoming more and more intelligent and convenient to use. Consumers are also accustomed to the convenience brought by intelligent technology, such as the linkage technology of smoke and stove. However, at present, the linkage function of the range hood is mostly limited to the linkage between the products of each manufacturer. It is difficult to achieve the linkage between smoke and stove between products of different brands. Although some manufacturers currently use image recognition technology (camera monitoring the position of the knob, etc.) to achieve the linkage between smoke and stove between products of different brands, it is difficult to truly commercialize it due to cost, energy efficiency (camera needs to work all the time) and other issues. Summary of the invention

[0003] The technical problem to be solved by the present invention is to provide a method for detecting the gear position of a stove in order to overcome the defects in the prior art that the gear position of a stove is difficult to detect and the cost is high.

[0004] The present invention solves the above technical problems through the following technical solutions:

[0005] A method for detecting a gear position of a stove, the stove comprising a knob and a power lever, the knob comprising a body, a controller, a start detection unit and a position detection unit, the body being connected to the power lever, the controller, the start detection unit and the position detection unit being all arranged on the body, the position detection unit comprising an axial detection part and a radial detection part; the method for detecting a gear position comprises:

[0006] The start detection unit rotates with the body and generates a start signal;

[0007] The controller starts one or more of the radial detection part and the axial detection part of the position detection unit according to the start signal;

[0008] The turned-on detection part among the axial detection part and the radial detection part detects the axial position and radial position of the body in real time, and generates corresponding axial signals and radial signals;

[0009] After the body has rotated, the start detection unit generates a rotation completion signal;

[0010] The controller obtains the current axial signal and the radial signal according to the rotation completion signal, and determines the current gear position of the cooker according to the current axial signal and the radial signal; or obtains the current radial signal and determines the current gear position of the cooker according to the current radial signal.

[0011] In this solution, whether to start the position detection unit is determined based on the detection signal of the start detection unit, thereby preventing the position detection unit from being in a working state for a long time, resulting in high power consumption. In addition, the start detection unit can also detect whether the rotation is completed, thereby accurately obtaining the detection signal of the position detection unit, and improving the precision and accuracy of the detection. In this process, axial detection is also performed through the axial detection part, so that it can be determined whether the cooker is in a firing state based on the axial direction, avoiding the erroneous judgment that the knob is not pressed down but is rotated to a certain angle, at which time the knob still outputs a detection signal and starts the range hood, further improving the accuracy of the detection.

[0012] Preferably, the controller starts one or more of the radial detection part and the axial detection part of the position detection unit according to the start signal, including:

[0013] The controller starts the axial detection unit according to the start signal;

[0014] The axial detection unit generates an axial signal after being started;

[0015] The controller determines whether to start the radial detection unit according to the axial signal;

[0016] If the axial signal determines that the body is pressed down, the controller activates the radial detection unit;

[0017] If the axial signal determines that the body is not pressed down, the controller keeps the radial detection unit dormant.

[0018] In this scheme, the axial detection part is started first according to the start signal, and the detection result of the axial detection part is used to determine whether the knob has been pressed down. If it is pressed down, the radial detection part is started to perform gear position detection to avoid erroneous detection that the knob is rotated without performing the ignition operation. At the same time, it can also avoid power consumption when starting the radial detection part, thereby further saving energy.

[0019] Preferably, the controller starts one or more of the radial detection part and the axial detection part of the position detection unit according to the start signal, including:

[0020] The controller starts the axial detection unit and the radial detection unit according to the start signal.

[0021] In this solution, the axial detection unit and the radial detection unit are simultaneously started according to the start signal, and detection is performed; in subsequent judgments, the gear position is judged based on the axial signal and the radial signal.

[0022] Preferably, the gear position detection method further comprises: before the start detection unit generates the start signal, the axial detection part is in a start state.

[0023] In this solution, the axial detection unit is always in working state, and the radial detection unit is awakened according to the rotation situation, thereby saving power consumption and improving the stability of detection.

[0024] Preferably, the body comprises a stator, a rotor and a reset part, the start detection unit is arranged between the stator and the rotor, and is used to detect the relative rotation between the rotor and the stator, the reset part is arranged between the stator and the rotor, and is used to provide a force for the reverse rotation of the rotor; the gear position detection method further comprises:

[0025] The rotor is subjected to an external force and rotates in a positive direction until the start detection unit contacts the stator and is triggered, and sends a start signal to the controller;

[0026] The rotor is not subjected to external force and stops rotating in the forward direction, and the reset part drives the rotor to rotate in the reverse direction until the start detection unit is separated from the stator, and a rotation completion signal is sent to the controller.

[0027] In this solution, the reset part can drive the rotor to rotate in the opposite direction relative to the stator when the rotor stops being subjected to external force, so that the start detection unit generates a rotation completion signal, and then determines the gear position of the stove based on the current axis signal and radial signal.

[0028] Preferably, the gear position detection method further includes:

[0029] Detecting the axial signal and the radial signal by a posture sensor;

[0030] Alternatively, the axial signal is detected by a posture sensor, and the radial signal is detected by a flame sensor.

[0031] In this solution, the attitude sensor can detect both the axial signal and the radial signal, thereby improving the detection performance. The attitude sensor can detect the axial signal in advance, and the flame sensor can detect the radial signal while judging whether there is a flame.

[0032] Preferably, the controller obtains the current axial signal and the radial signal according to the rotation completion signal, and determines the current gear position of the cooker according to the current axial signal and the radial signal, including:

[0033] The controller acquires the current axial signal and the radial signal according to the rotation completion signal;

[0034] The controller determines whether to use the radial signal as a determination signal of the gear position of the cooker according to the axial signal;

[0035] If the axial signal determines that the body is pressed down, the controller uses the radial signal as a determination signal of the gear position of the cooker;

[0036] If the axial signal determines that the body is not pressed down, the controller does not determine the gear position of the cooker.

[0037] In this solution, when performing gear position judgment, the axial signal is judged first, and after it is determined that the stove is in the firing state, the gear position judgment is then performed, thereby improving the accuracy of gear position detection.

[0038] Preferably, the gear position detection method further includes:

[0039] After acquiring the current axial signal and the radial signal according to the rotation completion signal, the controller at least controls the radial detection unit to sleep.

[0040] In this solution, after a knob operation is completed, at least the radial detection unit is put into sleep mode, which can further reduce power consumption and extend the use time of the knob.

[0041] Preferably, the gear position detection method further includes:

[0042] The start detection unit rotates again with the body and generates a start signal again;

[0043] The controller again starts one or more of the radial detection part and the axial detection part of the position detection unit according to the start signal;

[0044] The opened detection part among the axial detection part and the radial detection part detects the axial position and radial position of the body again in real time, and generates corresponding axial signal and radial signal;

[0045] The body completes rotation again, and the start detection unit generates a rotation completion signal again;

[0046] The controller obtains the current axial signal and the radial signal again according to the rotation completion signal, and determines the current gear position of the cooker again according to the current axial signal and the radial signal; or obtains the current radial signal again, and determines the current gear position of the cooker again according to the current radial signal.

[0047] In this solution, after the detection of one operation of the knob is completed, the next operation of the knob can be detected again and the gear position can be determined, so as to adapt to the usage of the knob of the stove.

[0048] Preferably, the controller determines the current gear position of the cooker, including:

[0049] The controller determines a current gear position of the cooker according to the radial signal and preset gear position information of the cooker.

[0050] In this solution, the gear positions of various stoves can be matched to improve adaptability.

[0051] The positive and progressive effect of the present invention is that it is determined whether to start the position detection unit according to the detection signal of the start detection unit, thereby avoiding the position detection unit being in a working state for a long time, resulting in high power consumption. In addition, by starting the detection unit, it is also possible to detect whether the rotation is completed, thereby accurately obtaining the detection signal of the position detection unit, and improving the precision and accuracy of the detection. In this process, axial detection is also performed through the axial detection part, so that it is possible to determine whether the cooker is in a firing state according to the axial direction, avoiding the erroneous judgment that the knob is not pressed down but is rotated to a certain angle, at which time the knob still outputs a detection signal and starts the range hood, further improving the accuracy of the detection. BRIEF DESCRIPTION OF THE DRAWINGS

[0052] Figure 1 A schematic diagram of the external structure of a knob provided in an embodiment of the present invention, wherein the rotor is sleeved on the outside of the stator;

[0053] Figure 2 for Figure 1 A bottom-up view of the middle knob;

[0054] Figure 3 for Figure 2 Schematic cross-sectional view at AA in the middle;

[0055] Figure 4 for Figure 2 A schematic cross-sectional view of the middle BB;

[0056] Figure 5 A schematic diagram of the internal structure of a knob provided by an embodiment of the present invention from one viewing angle, wherein the rotor is removed;

[0057] Figure 6 A schematic diagram of the internal structure of a knob provided by an embodiment of the present invention from another perspective, wherein the rotor is removed;

[0058] Figure 7 A schematic top view of a circuit board and a stator of a knob provided in an embodiment of the present invention;

[0059] Figure 8 A schematic flow chart of a method for detecting a gear position of a stove provided in an embodiment of the present invention.

[0060] Description of reference numerals:

[0061] Knob 1, rotor 10, driving part 110, stator 20, driving slot 210, protrusion 220, circuit board 30, electrical connection assembly 40, conductive part 410, main conductive track 411, first auxiliary conductive track 412, second auxiliary conductive track 413, electrical connection part 420, main contact 421, auxiliary contact 422, reset part 80, elastic sheet 81, stator axis Z, neutral line Y, fire control lever 2, forward rotation CW, reverse rotation CCW. DETAILED DESCRIPTION

[0062] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0063] The embodiment of the present invention also provides a method for detecting the gear position of a stove. The gear position detection method can be used as follows: Figure 1-Figure 7 The knob 1 shown is tested. Figure 8 As shown, the method comprises the following steps:

[0064] S10: The detection unit is started to rotate with the body and generates a start signal.

[0065] S20: The controller starts one or more of the radial detection part and the axial detection part of the position detection unit according to the start signal.

[0066] Specifically, after receiving the start signal, the controller can start one or more detection parts in the position detection unit, and determine whether to start the position detection unit according to the detection signal of the start detection unit, so as to avoid the position detection unit being in a working state for a long time, resulting in high power consumption.

[0067] S30: The turned-on detection part among the axial detection part and the radial detection part detects the axial position and radial position of the body in real time, and generates corresponding axial signals and radial signals.

[0068] Specifically, when both the axial detection portion and the radial detection portion are turned on, the axial detection portion and the radial detection portion can detect the axial position and the radial position of the stator 20 , respectively.

[0069] S40: The body is rotated to complete, and the detection unit is started to generate a rotation completion signal.

[0070] S50: The controller obtains the current axial signal and radial signal according to the rotation completion signal, and determines the current gear position of the cooker according to the current axial signal and radial signal; or obtains the current radial signal and determines the current gear position of the cooker according to the current radial signal.

[0071] Specifically, when the controller receives the rotation completion signal, it obtains the axial signal and the radial signal at that moment and makes a judgment.

[0072] During this process, axial detection is also performed through the axial detection unit, so that it can be determined whether the stove is in a firing state based on the axial direction, avoiding the erroneous judgment that the knob 1 is not pressed down but is rotated to a certain angle, at which time the knob 1 still outputs a detection signal and starts the range hood, thereby further improving the accuracy of the detection.

[0073] like Figure 1-Figure 7 As shown, an embodiment of the present invention provides a knob 1, which can be used in a stove and detect the gear position of the stove. The stove includes a knob 1 and a fire control lever 2. The knob 1 includes a body, a controller, a start detection unit and a position detection unit. The body is connected to the fire control lever 2. The controller, the start detection unit and the position detection unit are all arranged on the body. The position detection unit includes an axial detection part and a radial detection part. Among them, the detection direction of the axial detection part is the axial direction of the knob 1, that is, the vertical direction of the fire control lever 2 of the stove; the detection direction of the radial detection part is the rotation direction of the knob 1, that is, the direction in which the fire control lever 2 rotates to adjust the firepower.

[0074] like Figure 1-Figure 7 As shown, for the body, the knob 1 specifically includes a rotor 10 and a stator 20, the rotor 10 is connected to the stator 20, and there is a gap between the rotor 10 and the stator 20 along the rotation direction of the rotor 10; after the rotor 10 rotates through the gap, the rotor 10 contacts the stator 20 and drives the stator 20 to rotate. In a specific implementation, the rotor 10 and the stator 20 are connected in the Z direction of the stator axis, so that the rotor 10 forms a restriction with the stator 20 in the Z direction of the stator axis. When the rotor 10 rotates through the gap, the rotation of the rotor 10 can be transmitted to the stator 20, and the stator 20 is driven to rotate around its axis, thereby improving the reliability of the transmission.

[0075] For the start detection unit, the knob 1 specifically includes an electrical connection component 40, which is located between the rotor 10 and the stator 20. The electrical connection component 40 includes a conductive part 410 and an electrical connection part 420. One of the conductive part 410 and the electrical connection part 420 is connected to the rotor 10, and the other is connected to the stator 20. Before the rotor 10 rotates, and when the rotor 10 rotates and before the rotor 10 contacts the stator 20 or when the rotor 10 contacts the stator 20, the conductive part 410 and the electrical connection part 420 switch between being separated from each other and being connected to each other to form an electrical circuit.

[0076] The conductive part 410 and the electrical connection part 420 are connected to the rotor 10 and the stator 20 respectively. The relative rotation of the rotor 10 and the stator 20 drives the conductive part 410 and the electrical connection part 420 to move relative to each other, so that the conductive part 410 and the electrical connection part 420 are switched between two positions of being separated from each other and being connected to each other. The change in the connection state between the conductive part 410 and the electrical connection part 420 can form a transformation of an electrical signal, which can be identified so as to determine whether the rotor 10 moves relative to the stator 20. By identifying the rotation of the rotor 10, the position detection unit can be started for detection to prevent the position detection unit from being in a working state for a long time.

[0077] Further, in a specific implementation, the first method can be adopted, that is, when the conductive part 410 and the electrical connection part 420 are connected from being separated from each other, it can be judged that the rotor 10 rotates relative to the stator 20; the second method can also be adopted, that is, when the conductive part 410 and the electrical connection part 420 are connected from being separated from each other, it can be judged that the rotor 10 rotates relative to the stator 20. For the first method, before the rotor 10 rotates, the conductive part 410 and the electrical connection part 420 are separated from each other; when the rotor 10 rotates, and before the rotor 10 contacts the stator 20 or when the rotor 10 contacts the stator 20, the conductive part 410 and the electrical connection part 420 are connected to form an electrical circuit. For the second method, before the rotor 10 rotates, the conductive part 410 and the electrical connection part 420 are connected to form an electrical circuit; when the rotor 10 rotates, and before the rotor 10 contacts the stator 20 or when the rotor 10 contacts the stator 20, the conductive part 410 and the electrical connection part 420 are separated from each other. Among them, the power consumption of the first method is lower.

[0078] like Figure 3-Figure 7 As shown, the knob 1 also includes a circuit board 30 , and the conductive portion 410 is disposed on the surface of the circuit board 30 and electrically connected to the circuit board 30 ; the circuit board 30 is connected to the stator 20 , and the electrical connection portion 420 is connected to the rotor 10 .

[0079] The following will take method 1 as an example to further provide details of this embodiment.

[0080] like Figure 5 , Figure 6 and Figure 7 As shown, the conductive part 410 includes a main conductive track 411, a first auxiliary conductive track 412 and a second auxiliary conductive track 413, the first auxiliary conductive track 412 and the second auxiliary conductive track 413 are arranged along the radial direction of the rotor 10 or the stator 20 connected thereto, and are spaced apart from the main conductive track 411, and are located at the outer edge of the rotor 10 or the stator 20 connected thereto; the first auxiliary conductive track 412 and the second auxiliary conductive track 413 are spaced apart along the rotation direction of the rotor 10; the electrical connection part 420 includes a main contact 421 and an auxiliary contact 422, and the main contact 421 is in contact with the main conductive track 411;

[0081] Before the rotor 10 rotates, the auxiliary contact 422 is located between the first auxiliary electrical track 412 and the second auxiliary electrical track 413 ; after the rotor 10 rotates, and before the rotor 10 contacts the stator 20 or when the rotor 10 contacts the stator 20 , the auxiliary contact 422 is connected to the first auxiliary electrical track 412 or the second auxiliary electrical track 413 .

[0082] The main contact 421 can be connected to the main conductive track 411. After the rotor 10 rotates, the auxiliary contact 422 can be connected to the first auxiliary conductive track 412 or the second auxiliary conductive track 413, thereby forming an electrical circuit. The structure is simple and reliable.

[0083] Specifically, Figure 5 , Figure 6 and Figure 7 As shown, the conductive track is a conductive rail having a metal coating of a certain width, the width of which ranges from 2 to 5 mm. The length of the conductive track is configured such that when the rotor 10 drives the stator 20 to rotate to the maximum position of the stator 20, the conductive track is still connected to the electrical connection portion 420.

[0084] like Figure 5 and Figure 6 As shown, the electrical connection portion 420 is in a neutral position, that is, the rotor 10 is not rotated by an external force, and the main contact 421 and the auxiliary contact 422 of the electrical connection portion 420 are both located as shown in FIG. Figure 7 On the neutral line Y of the stator 20 shown in the figure, the main contact 421 is in contact with the main conductive track 411, and the auxiliary contact 422 is located between the first auxiliary conductive track 412 and the second auxiliary conductive track 413, and is equidistant from the first auxiliary conductive track 412 and the second auxiliary conductive track 413, that is, the rotation angle a of the auxiliary contact 422 to the proximal edge of the first auxiliary conductive track 412 when the rotor 10 rotates forward CW is equal to the rotation angle a' of the auxiliary contact 422 to the proximal edge of the second auxiliary conductive track 413 when the rotor 10 rotates reverse CCW.

[0085] like Figure 2 As shown, after the rotor 10 rotates by angle b, it contacts the stator 20 and drives the stator 20 to rotate in the later stage. The rotation angles a and a' between the electrical connection part 420 and the conductive part 410 are both greater than the rotation angle b between the rotor 10 and the stator 20, so that the electrical connection between the electrical connection part 420 and the conductive part 410 will precede the contact between the rotor 10 and the stator 20; or, the rotation angles a and a' between the electrical connection part 420 and the conductive part 410 are both equal to the rotation angle b between the rotor 10 and the stator 20, so that the electrical connection between the electrical connection part 420 and the conductive part 410 will occur simultaneously with the contact between the rotor 10 and the stator 20.

[0086] like Figure 7As shown, the rotation angle of the auxiliary contact 422 from the proximal edge to the distal edge of the first auxiliary current track 412 is p, and the rotation angle of the auxiliary contact 422 from the proximal edge to the distal edge of the second auxiliary current track 413 is p'. The rotation angles p and p' are greater than the rotation angle b between the rotor 10 and the stator 20.

[0087] like Figure 1 , Figure 3 and Figure 4 As shown, the rotor 10 is a housing, and along the axis direction of the knob 1, the housing is covered on the stator 20 and is spaced apart from the stator 20. A pre-tightening force can be applied to the electrical connection part 420 in the axis Z direction of the stator, so that the main contact 421 and the auxiliary contact 422 are respectively fitted with the corresponding conductive tracks. The conductive connection part 420 is made of a conductive material.

[0088] like Figure 2 and Figure 4 As shown, a driving portion 110 is provided on the inner surface of the rotor 10 facing the stator 20, and a driving slot 210 is provided on the stator 20, and the driving portion 110 extends into the driving slot 210; along the rotation direction of the rotor 10, a first interval is provided between the driving portion 110 and the driving slot 210, and a second interval is provided between the electrical connection portion 420 and the conductive portion 410; when the rotor 10 rotates through the first interval, the corresponding rotation angle b is not less than the corresponding rotation angles a and a' when the rotor 10 rotates through the second interval.

[0089] For the position detection unit, it can realize axial detection and radial detection by a single sensor, or by a combination of multiple sensors.

[0090] As an implementation mode, the position detection unit is a posture sensor. In a specific implementation, a 6-axis posture sensor (gyroscope + accelerometer) can be preferably selected. The posture sensor can detect the axial direction and the radial direction.

[0091] As another embodiment, the axial detection part in the position detection unit adopts a sensor or structure that can realize axial position detection, that is, a sensor or structure that can realize self-height detection or self-height change detection. For example, a posture sensor, an infrared sensor, a contact sensor, etc. can be used. The radial detection part is composed of at least one flame sensor, which determines the gear position of the cooker by comparing the current flame intensity with the preset flame intensity. Among them, there are preferably multiple flame sensors, and the multiple flame sensors are arranged on the circuit board along the circumferential direction of the stator, and the sum of the detection angles of the multiple flame sensors is not less than 360°.

[0092] For the above step S20, for the activation of the radial detection unit and the axial detection unit, a variety of implementation methods can be adopted in the specific implementation. Some feasible implementation methods will be provided below, but the protection scope of the present invention should not be limited to the following implementation methods.

[0093] As a preferred implementation, the above step S20 includes:

[0094] S211: The controller starts the axial detection unit according to the start signal;

[0095] S212: The axial detection unit generates an axial signal after being started;

[0096] S213: The controller determines whether to start the radial detection unit according to the axial signal;

[0097] S214: If the axial signal determines that the body is pressed down, the controller starts the radial detection unit;

[0098] S215: If the axial signal determines that the body is not pressed down, the controller keeps the radial detection unit dormant.

[0099] Specifically, the axial detection unit may use a posture sensor or other sensors capable of axial position detection, and the radial detection unit may use a flame sensor. Therefore, it is possible to first determine whether the knob 1 is pressed down by using a posture sensor or other sensors capable of axial position detection. For most stove knobs 1 on the market, when the stove is started, it is necessary to first press down the knob 1 and then rotate it to start it normally. If it is determined that the knob 1 is not pressed down, it means that the knob 1 may have only been rotated and no flame is generated by the stove. In this case, the radial detection unit may not be started first.

[0100] The axial detection unit is first started according to the start signal, and the detection result of the axial detection unit is used to determine whether the knob 1 has been pressed down. If it is pressed down, the radial detection unit is started to perform gear position detection to avoid erroneous detection that the knob 1 is rotated without performing the ignition operation. At the same time, the power consumption of starting the radial detection unit can also be avoided, thereby further saving energy.

[0101] In specific implementation, the knob 1 is pressed down and rotated, but the cooker may still fail to ignite successfully. The fire power amplitude of the flame sensor can be used to determine the gear position and whether the cooker is successfully ignited, thereby further improving the accuracy of detection.

[0102] When the radial detection unit is activated in step S214, the axial detection unit can be dormant. For example, when the axial detection unit is a posture sensor and the radial detection unit is a flame sensor, the posture sensor is first activated according to the activation signal, and the posture sensor determines the axial position of the knob 1. When it is determined that the knob 1 is pressed down, the flame sensor is activated and the posture sensor is dormant.

[0103] In the subsequent step S50, the controller obtains the current radial signal according to the rotation completion signal, and determines the current gear position of the cooker according to the current radial signal. Specifically, when the radial detection unit is activated in step S214, the axial detection unit is dormant. In the subsequent step S50, the radial detection unit performs detection, such as detection by a flame sensor. The flame sensor can determine whether the ignition is successful and determine the gear position of the cooker according to the flame amplitude.

[0104] When it is determined in step S215 that the body is not pressed down, in addition to keeping the radial detection part in sleep mode, the activated axial detection part can also be put into sleep mode.

[0105] As another preferred implementation, the above step S20 includes:

[0106] S221: The controller starts the axial detection unit and the radial detection unit according to the start signal. The axial detection unit and the radial detection unit are started at the same time according to the start signal, and detection is performed; in subsequent judgments, the gear position is judged according to the axial signal and the radial signal. Specifically, when the position detection unit is a posture sensor with axial detection and radial detection functions, the controller starts the posture sensor after receiving the start signal.

[0107] As another preferred implementation manner, the gear position detection method further includes:

[0108] S1: Before the start detection unit generates a start signal, the axial detection unit is in the start state. The axial detection unit is always in the working state, and the radial detection unit wakes up according to the rotation situation, thereby saving power consumption and improving the stability of detection.

[0109] In the above embodiments, a variety of ways of starting the radial detection unit and the axial detection unit are provided, wherein the radial detection unit is started by the controller according to a start signal or a start signal and an axial signal; the axial detection unit can be started in the initial state, or can be started by the controller according to the start signal. After the radial detection unit is started, the axial detection unit can continue to be in a working state, or can be dormant. In specific implementation, any or a combination of implementations can be performed according to requirements.

[0110] As a preferred implementation, step S10 in the gear position detection method further includes:

[0111] S100: The rotor 10 is subjected to an external force and rotates forward until the start detection unit contacts the stator 20 and is triggered, and sends a start signal to the controller.

[0112] Specifically, when the rotor 10 rotates relative to the stator 20, the electrical connection part 420 rotates with the rotor 10 relative to the conductive part 410; when the rotor 10 drives the stator 20 to rotate, the electrical connection part 420 and the conductive part 410 rotate with the body relative to the fire control lever 2.

[0113] Further, when the main conductive trace 411 contacts the first auxiliary conductive trace 412 , or when the main conductive trace 411 contacts the second auxiliary conductive trace 413 , an activation signal is generated.

[0114] As a preferred implementation, step S40 in the gear position detection method further includes:

[0115] The rotor 10 is not subjected to external force and stops rotating in the forward direction, and the reset part 80 drives the rotor 10 to rotate in the reverse direction until the start detection unit is separated from the stator 20, and a rotation completion signal is sent to the controller.

[0116] Furthermore, the main body includes a stator 20, a rotor 10 and a reset part 80, the start detection unit is arranged between the stator 20 and the rotor 10, and is used to detect the relative rotation between the rotor 10 and the stator 20, and the reset part 80 is arranged between the stator 20 and the rotor 10, and is used to provide a force for the reverse rotation of the rotor 10.

[0117] Specifically, under the action of the reset part 80, when the main conductive track 411 and the first auxiliary conductive track 412 are separated, or when the main conductive track 411 and the second auxiliary conductive track 413 are separated, a rotation completion signal is generated. In addition, by starting the detection unit, it is also possible to detect whether the rotation is completed, thereby accurately obtaining the detection signal of the position detection unit, and improving the precision and accuracy of the detection.

[0118] like Figure 2 and Figure 6 As shown, the reset portion 80 extends along the axial direction of the stator 20 , one end of the reset portion 80 is fixedly connected to one of the rotor 10 and the stator 20 , and the other end of the reset portion 80 abuts against the other of the rotor 10 and the stator 20 .

[0119] A reset portion 80 is provided between the rotor 10 and the stator 20. When relative rotation occurs between the rotor 10 and the stator 20, the reset portion 80 is deformed to accumulate a restoring force to restore the rotor 10 and the stator 20 to their initial positions. When the rotor 10 receives a force applied by the user, the reset portion 80 is also subjected to the applied force and is in a force storage state; when the user does not apply a force, the reset portion 80 will provide a force to restore the rotor 10 and the stator 20 to their initial positions. Through the reset portion 80, the electrical connection portion 420 can be separated from the conductive portion 410, thereby reflecting that an operation has been completed.

[0120] like Figure 2 and Figure 6 As shown, the stator 20 is provided with a protrusion 220 protruding along its radial direction; one end of the elastic sheet 81 is fixedly connected to the rotor 10, and the other end of the elastic sheet 81 abuts against the protrusion 220; along the rotation direction of the rotor 10, both sides of the protrusion 220 abut against the elastic sheet 81. Specifically, the upper part of the reset portion 80 is provided with a mounting hole for connecting with the lower surface of the rotor 10. The reset portion 80 includes two elastic sheets 81 extending toward the stator.

[0121] As a preferred implementation, in step S50, when the controller obtains the current axial signal and radial signal according to the rotation completion signal, and determines the current gear position of the cooker according to the current axial signal and radial signal. Specifically, when the radial detection unit is started in the above step S214, the axial detection unit can still be in the working state; and when the axial detection unit and the radial detection unit are started according to the start signal in the above step S221; in the subsequent step S50, the radial detection unit and the axial detection unit are both in the detection state.

[0122] Step S50 also includes the following steps:

[0123] S510: The controller obtains the current axial signal and radial signal according to the rotation completion signal;

[0124] S520: The controller determines whether to use the radial signal as a determination signal of the gear position of the cooker according to the axial signal;

[0125] S530: If the axial signal determines that the body is pressed down, the controller uses the radial signal as a judgment signal of the gear position of the cooker;

[0126] S540: If the axial signal determines that the main body is not pressed down, the controller does not determine the gear position of the cooker.

[0127] When making a gear position judgment, first judge the axial signal, and then make a gear position judgment after confirming that the stove is in the firing state, thereby improving the accuracy of gear position detection.

[0128] As a preferred implementation, in step S50, the controller determines the current gear position of the cooker, including:

[0129] S550: The controller determines the current gear position of the cooker according to the radial signal and the preset gear position information of the cooker, so as to match the gear position of each cooker and improve the adaptability.

[0130] In specific implementation, the gear position of the stove can be preset according to the situation of the stove. For example, for the attitude sensor, the rotation angle of the fire control lever 2 can be divided, and each angle range corresponds to the corresponding gear position; when the gear position is judged, the angle information of the radial signal is compared with the preset angle range to determine the gear position. For the flame sensor, the amplitude of the stove flame can be divided, and each amplitude range corresponds to the corresponding gear position; when the gear position is judged, the flame amplitude of the radial signal is compared with the preset amplitude range to determine the gear position.

[0131] In the above process, through any of the above implementations, a gear position judgment can be completed. After a gear position judgment is completed, when the user performs the next operation, the knob 1 can be re-judged. Among them, the angle of the posture sensor can be accumulated based on the previous angle, and the flame sensor can be re-judged based on the latest amplitude.

[0132] As a preferred implementation manner, the gear position detection method further includes:

[0133] S60: After the controller obtains the current axial signal and radial signal according to the rotation completion signal, it controls at least the radial detection unit to sleep. When the knob 1 is operated once, at least the radial detection unit is put into sleep mode, which can further reduce power consumption and extend the use time of the knob 1.

[0134] As a preferred implementation manner, the gear position detection method further includes:

[0135] S710: The start detection unit rotates with the body again and generates a start signal again;

[0136] S720: The controller restarts one or more of the radial detection unit and the axial detection unit of the position detection unit according to the startup signal;

[0137] S730: The turned-on detection part among the axial detection part and the radial detection part detects the axial position and radial position of the body again in real time, and generates corresponding axial signals and radial signals;

[0138] S740: the body is rotated again and the detection unit is started to generate a rotation completion signal again;

[0139] S750: The controller obtains the current axial signal and radial signal again according to the rotation completion signal, and determines the current gear position of the cooker again according to the current axial signal and radial signal; or obtains the current radial signal again, and determines the current gear position of the cooker again according to the current radial signal.

[0140] After the detection of one operation of the knob 1 is completed, the next operation of the knob 1 can be detected again and the gear position can be determined, so as to adapt to the usage of the knob 1 of the cooker.

[0141] Although the specific embodiments of the present invention are described above, it should be understood by those skilled in the art that this is only for illustration and the protection scope of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, but these changes and modifications all fall within the protection scope of the present invention.

Claims

1. A method for detecting the gear position of a stove, characterized in that: The cooker comprises a knob and a fire control lever, the knob comprises a body, a controller, a start detection unit and a position detection unit, the body is connected to the fire control lever, the controller, the start detection unit and the position detection unit are all arranged on the body, and the position detection unit comprises an axial detection part and a radial detection part; the gear position detection method comprises: The start detection unit rotates with the body and generates a start signal; The controller starts one or more of the radial detection part and the axial detection part of the position detection unit according to the start signal; The turned-on detection part among the axial detection part and the radial detection part detects the axial position and radial position of the body in real time, and generates corresponding axial signals and radial signals; After the body has rotated, the start detection unit generates a rotation completion signal; The controller obtains the current axial signal and the radial signal according to the rotation completion signal, and determines the current gear position of the cooker according to the current axial signal and the radial signal; or obtains the current radial signal and determines the current gear position of the cooker according to the current radial signal.

2. The method for detecting the gear position of a cooker according to claim 1, characterized in that: The controller starts one or more of the radial detection part and the axial detection part of the position detection unit according to the start signal, including: The controller starts the axial detection unit according to the start signal; The axial detection unit generates an axial signal after being started; The controller determines whether to start the radial detection unit according to the axial signal; If the axial signal determines that the body is pressed down, the controller activates the radial detection unit; If the axial signal determines that the body is not pressed down, the controller keeps the radial detection unit dormant.

3. The method for detecting the gear position of a cooker according to claim 1, characterized in that: The controller starts one or more of the radial detection part and the axial detection part of the position detection unit according to the start signal, including: The controller starts the axial detection unit and the radial detection unit according to the start signal.

4. The method for detecting the gear position of a cooker according to claim 1, characterized in that: The gear position detection method further includes: before the start detection unit generates the start signal, the axial detection portion is in a start state.

5. The method for detecting the gear position of a cooker according to any one of claims 1 to 4, characterized in that: The body comprises a stator, a rotor and a reset part, the start detection unit is arranged between the stator and the rotor, and is used to detect the relative rotation between the rotor and the stator, and the reset part is arranged between the stator and the rotor, and is used to provide a force for the reverse rotation of the rotor; The gear position detection method further includes: The rotor is subjected to an external force and rotates in a positive direction until the start detection unit contacts the stator and is triggered, and sends a start signal to the controller; The rotor is not subjected to external force and stops rotating in the forward direction, and the reset part drives the rotor to rotate in the reverse direction until the start detection unit is separated from the stator, and a rotation completion signal is sent to the controller.

6. The method for detecting the gear position of a cooker according to claim 1, characterized in that: The gear position detection method further includes: Detecting the axial signal and the radial signal by a posture sensor; Alternatively, the axial signal is detected by a posture sensor, and the radial signal is detected by a flame sensor.

7. The method for detecting the gear position of a cooker according to claim 1, characterized in that: The controller acquires the current axial signal and the radial signal according to the rotation completion signal, and determines the current gear position of the cooker according to the current axial signal and the radial signal, including: The controller acquires the current axial signal and the radial signal according to the rotation completion signal; The controller determines whether to use the radial signal as a determination signal of the gear position of the cooker according to the axial signal; If the axial signal determines that the body is pressed down, the controller uses the radial signal as a determination signal of the gear position of the cooker; If the axial signal determines that the body is not pressed down, the controller does not determine the gear position of the cooker.

8. The method for detecting the gear position of a cooker according to claim 1, characterized in that: The gear position detection method further includes: After acquiring the current axial signal and the radial signal according to the rotation completion signal, the controller at least controls the radial detection unit to sleep.

9. The method for detecting the gear position of a cooker according to claim 8, characterized in that: The gear position detection method further includes: The start detection unit rotates again with the body and generates a start signal again; The controller again starts one or more of the radial detection part and the axial detection part of the position detection unit according to the start signal; The opened detection part among the axial detection part and the radial detection part detects the axial position and radial position of the body again in real time, and generates corresponding axial signal and radial signal; The body completes rotation again, and the start detection unit generates a rotation completion signal again; The controller obtains the current axial signal and the radial signal again according to the rotation completion signal, and determines the current gear position of the cooker again according to the current axial signal and the radial signal; or obtains the current radial signal again, and determines the current gear position of the cooker again according to the current radial signal.

10. The method for detecting the gear position of a cooker according to claim 1, characterized in that: The controller determines the current gear position of the cooker, including: The controller determines a current gear position of the cooker according to the radial signal and preset gear position information of the cooker.

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