Firepower control system and control method for kitchen appliances

Abstract

The invention relates to a kitchen appliance fire control system and a control method. The control system comprises a force feedback knob and an integrated cooker, the integrated cooker is provided with a cooker main control board and kitchen appliances; the force feedback knob comprises a brushless motor, and the torque of the brushless motor is gradually increased along with the increase of the rotation angle; the force feedback knob is wirelessly connected to the cooker main control board and is used for detecting rotation data of the brushless motor and sending the rotation data to the cooker main control board; the cooker main control board is connected to the kitchen appliance and used for correspondingly controlling the firepower of the kitchen appliance according to the rotation data of the brushless motor. As the torque of the brushless motor is gradually increased along with the increase of the rotation angle, when a user rotates the force feedback knob, the torque of the brushless motor is also increased along with the increase of the rotation angle, and the user needs to pay more force to rotate the force feedback knob. Therefore, a user can have direct real-time feeling when adjusting the firepower of the kitchen electric appliance, and the perceptibility and cognition of an adjusting result in the firepower adjusting process are improved.

Description

Technical Field

[0001] The invention relates to the technical field of household appliances, and in particular to a firepower control system and a control method for kitchen appliances. Background Art

[0002] Integrated stove is a kitchen appliance that integrates multiple functions such as range hood, gas stove, disinfection cabinet, storage cabinet, etc. It has the advantages of saving space, good fume extraction effect, energy saving, low consumption and environmental protection. Integrated stove is an internationally leading kitchen appliance product developed to solve the problem that traditional range hoods cannot completely eliminate oil smoke and improve the kitchen and home environment. This product organically combines range hoods, stoves, disinfection cabinets, storage cabinets, etc. to reduce kitchen fumes.

[0003] In the traditional cooking environment, when users adjust the power of kitchen appliances through knob interaction, such as rotating the power knob of a gas stove, the torque of the power knob remains the same during rotation, and users can only know the power of the gas stove through visual observation. However, this is a delayed secondary feedback, which will make users feel unsure of the heat or unable to intuitively feel the adjustment range when using the knob for real-time interaction, resulting in insufficient perception and cognition of the adjustment results during the adjustment process, affecting the accuracy of the operation. Summary of the invention

[0004] In view of the problems existing in the prior art, the purpose of the present invention is to provide a kitchen appliance firepower control system and control method, which can provide a direct real-time feeling when adjusting the firepower of the kitchen appliance and improve the perception and cognition of the firepower adjustment results.

[0005] In order to achieve the above object, the present invention adopts the following technical solution: A kitchen appliance fire control system, comprising a force feedback knob and an integrated stove; The integrated stove is equipped with a stove main control panel and kitchen appliances; The force feedback knob includes a brushless motor, the torque of which gradually increases as the rotation angle increases; The force feedback knob is wirelessly connected to the cooker main control board to detect the rotation data of the brushless motor and send it to the cooker main control board; The stove main control board is connected to the kitchen appliance and is used to control the fire power of the kitchen appliance according to the rotation data of the brushless motor.

[0006] Furthermore, the force feedback knob also includes a motor main board, a knob main board and a communication element; The motor main board is used to obtain the rotation data of the brushless motor and send it to the knob main board; The knob main board is used to calculate the data for controlling the magnetic field and torque of the brushless motor according to the rotation data of the brushless motor and change the output torque of the brushless motor accordingly; The communication element is respectively connected to the knob main board and the stove main control board, and is used for sending the rotation data of the brushless motor to the stove main control board.

[0007] Furthermore, the motor main board is configured with a magnetic encoder, which is used to encode the magnetic field changes generated by the rotation of the brushless motor, so that the motor main board can obtain the rotation data of the brushless motor.

[0008] Furthermore, the kitchen appliance is provided with a fire solenoid valve, and the stove main control board is connected to the fire solenoid valve.

[0009] Furthermore, the integrated stove is provided with a plurality of kitchen appliances and a plurality of Hall sensors corresponding one to one, the plurality of Hall sensors are respectively connected to a main control board of the stove, and the force feedback knob is provided with an induction magnet, wherein when the force feedback knob contacts any Hall sensor, the Hall sensor is triggered by the induction magnet of the force feedback knob, so that the kitchen appliance corresponding to the Hall sensor is connected to the main control board of the stove.

[0010] Furthermore, the integrated stove is provided with an integrated stove panel, and a plurality of Hall sensors are arranged in sequence on the integrated stove panel.

[0011] A method for controlling the firepower of a kitchen appliance, using the above-mentioned firepower control system of a kitchen appliance, comprises the following steps: The cooker main control board obtains the rotation data of the brushless motor when the force feedback knob is rotated; The cooker main control board is connected to the kitchen appliance and controls the fire power of the kitchen appliance accordingly according to the rotation data of the brushless motor; Among them, the torque of the brushless motor gradually increases with the increase of the rotation angle. When the firepower of the kitchen appliance is increased, the torque of the rotation force feedback knob needs to be increased.

[0012] Furthermore, the torque of the brushless motor gradually increases as the rotation angle increases. The motor main board obtains the rotation data of the brushless motor and sends it to the knob main board. The knob main board calculates the data for controlling the magnetic field and torque of the brushless motor based on the rotation data of the brushless motor and changes the output torque of the brushless motor accordingly.

[0013] Furthermore, the connection between the stove main control board and the kitchen appliance is achieved by: Putting a Hall sensor in contact with the force feedback knob, wherein the Hall sensor corresponds to the kitchen appliance to be controlled; The Hall sensor is triggered by the induction magnet of the force feedback knob, so that the kitchen appliance corresponding to the Hall sensor is connected to the stove main control board.

[0014] Furthermore, before rotating the force feedback knob, the knob main board obtains the torque curve of the brushless motor, and the torque curve of the brushless motor is used to limit the firepower adjustment range of the kitchen appliance, wherein the torque curve of the brushless motor is generated according to a preset cooking program.

[0015] In general, the present invention has the following advantages: The present invention uses a force feedback knob to replace a traditional kitchen appliance knob to adjust the firepower of the kitchen appliance. When the force feedback knob is rotated, the rotor of the brushless motor of the force feedback knob rotates a certain angle, and the rotation data is sent to the stove main control board, and the stove main control board controls the firepower of the kitchen appliance accordingly according to the rotation data of the brushless motor. Since the torque of the brushless motor gradually increases as the rotation angle increases, when the user rotates the force feedback knob, as the rotation angle increases, the torque of the brushless motor also increases accordingly, and the user needs to pay more force to turn the force feedback knob, so that the user can have a direct real-time feeling when adjusting the firepower of the kitchen appliance, without the need to use visual observation to know the firepower of the kitchen appliance, thereby improving the perception and cognition of the adjustment result during the firepower adjustment process. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 The present invention is a flow chart of a method for controlling the firepower of kitchen appliances.

[0017] Figure 2 This is a flow chart of using a force feedback knob to control the fire power of a gas stove.

[0018] Figure 3 This is a schematic diagram of the integrated stove panel.

[0019] Figure 4 This is the schematic diagram of the stove main control board.

[0020] Figure 5 This is a schematic diagram of the force feedback knob.

[0021] Figure 6 The figure is a schematic diagram of the rotation torque and rotation angle of the force feedback knob (taking 120 degrees as an example).

[0022] Figure 7 The figure is a schematic diagram of the rotation torque and rotation angle of the force feedback knob (taking 100 degrees as an example).

[0023] In the figure: 1-Hall sensor, 2-stove main control board, 3-protective glass, 4-first connecting piece, 5-screen, 6-screen main control board, 7-knob body, 8-brushless motor, 9-second connecting piece, 10-motor main board, 11-knob main board, 12-battery, 13-induction magnet, 14-communication element, 15-knob base. DETAILED DESCRIPTION

[0024] The present invention relates to an integrated stove system. A user selects the type of dish and the processing procedure to be processed in a mobile phone application, and the system automatically adjusts the torque of a force feedback knob to achieve real-time control of the firepower. For example, during cooking, if the user adjusts the firepower too high, the system will prompt the user by increasing the torque required for the rotation of the force feedback knob, giving a direct real-time adjustment experience, guiding them to adjust the firepower to an appropriate size, helping to cultivate the user's sensitivity to firepower control, and reducing the difficulty of cooking high-quality dishes.

[0025] The present invention will be described in further detail below.

[0026] like Figure 1-Figure 5 As shown, a kitchen appliance fire control system includes a force feedback knob and an integrated stove; The integrated stove includes an integrated stove panel, on which a stove main control panel 2 and an interactive interface are provided. The interactive interface is provided with a plurality of Hall sensors 1, which are arranged in sequence on the interactive interface and are electrically connected to the stove main control panel 2 respectively.

[0027] The integrated stove includes a plurality of kitchen appliances, and the plurality of kitchen appliances and the plurality of Hall sensors 1 are respectively arranged in a one-to-one correspondence.

[0028] In the structure of the force feedback knob, the protective glass 3 is connected to the first connecting member 4, the first connecting member 4 is inserted above the screen 5, and the screen main control board 6 is placed under the screen 5, which together form the upper surface of the force feedback knob. The brushless motor 8 is connected to the motor main board 10 through the second connecting member 9 and then fixed on the knob base 15. The torque of the brushless motor 8 gradually increases with the increase of the rotation angle; the induction magnet 13, the battery 12 and the communication element 14 are all placed on the inner surface of the knob base 15, and the knob main board 11 is fixed at the half-depth position of the knob base 15. The knob body 7 is engaged with the knob base 15.

[0029] When the power of a kitchen appliance needs to be adjusted, the Hall sensor 1 corresponding to the kitchen appliance is first found on the integrated stove panel, and then the force feedback knob is brought into contact with the Hall sensor 1. The Hall sensor 1 is triggered by the induction magnet 13 of the force feedback knob, and the kitchen appliance to be adjusted communicates with the stove main control board 2 through the interactive interface. With this structure and method, the kitchen appliance to be adjusted can be conveniently switched, and one-to-many power adjustment can be achieved, which simplifies the operation process and improves the convenience and efficiency of use.

[0030] The motor main board 10 is equipped with a magnetic encoder. When the force feedback knob is turned, the rotor of the brushless motor 8 rotates. When the brushless motor 8 rotates, a magnetic field change will be generated. The motor main board 10 equipped with a magnetic encoder encodes and records the magnetic field information, thereby recording the rotation angle and state of the brushless motor 8. When the knob is turned, the motor main board 10 sends information such as the magnetic field and the rotation angle to the knob main board 11. According to the transmitted magnetic field and angle information, the knob main board 11 calculates the corresponding current value through a formula, and changes the current input to the brushless motor 8 into the calculated value. After conversion, it becomes data for controlling the magnetic field and controlling the torque, thereby changing the output torque of the brushless motor 8, completing the function of increasing the torque as the rotation angle increases, so that users can get a direct real-time experience when adjusting the firepower of kitchen appliances.

[0031] The force feedback knob is wirelessly connected to the stove main control board 2 through the communication element 14, and the rotation data of the brushless motor 8 is sent to the stove main control board 2; the stove main control board 2 is electrically connected to the kitchen appliance, and is used to control the fire solenoid valve of the kitchen appliance according to the rotation data of the brushless motor 8. The solenoid valve receives a signal from the stove main control board 2, and opens or closes according to the signal to adjust the amount of gas passing through (taking a gas stove as an example), thereby controlling the size of the fire.

[0032] In this embodiment, the communication element 14 is Bluetooth.

[0033] A method for controlling the firepower of a kitchen appliance, using the above-mentioned firepower control system of a kitchen appliance, comprises the following steps: Obtaining rotation data of the brushless motor 8 when the force feedback knob is rotated; The fire power of the kitchen appliance is controlled accordingly according to the rotation data of the brushless motor; Since the torque of the brushless motor 8 gradually increases with the increase of the rotation angle, when increasing the firepower of the kitchen appliance, it is necessary to increase the torque of the rotation force feedback knob, so that the user can get a direct real-time feeling during the adjustment process, without having to observe the adjusted firepower with the eyes, thereby improving the perception and cognition of the adjustment results during the firepower adjustment process.

[0034] Among them, the torque of the brushless motor 8 gradually increases as the rotation angle increases. The motor main board 10 obtains the rotation data of the brushless motor 8 and sends it to the knob main board 11. The knob main board 11 calculates the data for controlling the magnetic field and torque of the brushless motor 8 based on the rotation data of the brushless motor 8 and changes the output torque of the brushless motor 8 accordingly.

[0035] The connection between the stove main control board 2 and the kitchen appliance is achieved by bringing the Hall sensor 1 into contact with the force feedback knob, and the Hall sensor 1 corresponds to the kitchen appliance to be controlled; the Hall sensor 1 is triggered by the induction magnet 13 of the force feedback knob, so that the kitchen appliance corresponding to the Hall sensor 1 is connected to the stove main control board 2.

[0036] Furthermore, before rotating the force feedback knob, the knob main board 11 pre-acquires the torque curve of the brushless motor 8, and the torque curve of the brushless motor 8 is used to limit the power adjustment range of the kitchen appliance, wherein the torque curve of the brushless motor 8 is generated according to a preset cooking program. With this step, different power control ranges can be formulated for different dishes and corresponding cooking programs, which is conducive to improving the quality of dishes prepared by users.

[0037] Specifically, when cooking different dishes, the force feedback mode of the force feedback knob is different. After the user selects the dish to be cooked and the cooking program on the APP, the system generates a corresponding torque curve based on this. The data is sent to the Bluetooth component 6 by the mobile phone Bluetooth, and then the Bluetooth component 6 transmits the data to the knob mainboard 11. The knob mainboard 11 automatically adjusts the gas supply range according to the preset torque curve to achieve precise control of the cooking firepower. When the user adjusts the firepower through the knob, he can feel the changes in torque feedback under different cooking modes, thereby achieving intuitive control of the cooking process.

[0038] Take stewing and stir-frying vegetables, which are common in home cooking, for example. The stewing process requires a high degree of fire stability, so it is suitable to use a small fire for slow stewing; while stir-frying vegetables requires a large fire for quick stir-frying to maintain the color and taste of the vegetables. Therefore, there is a significant difference in the torque adjustment range corresponding to the two cooking modes. Figure 6 As shown in the figure, in the stir-fry mode, the torque curve allows a larger adjustment range, the torque feedback felt by the user during the adjustment process is smaller, and the operation is smoother; while in the stewing mode, Figure 7 As shown, the adjustment range of the torque curve is limited, the torque feedback felt by the user is larger, and the operation is slower.

[0039] In addition, no matter which cooking mode, when the fire adjustment exceeds the preset torque curve range, the system will automatically lock the adjustment range to avoid unnecessary energy waste and food loss. Figure 6 As shown, the maximum rotation angle of the force feedback knob is 135°, and the maximum torque is M. When the force feedback knob is rotated from the initial position to 120°, the torque gradually increases from 0% to 100%, and the speed of change is from slow to fast. When the rotation angle is in the range of 120° to 135°, the torque is always the maximum torque M. At this time, twisting is more difficult and the firepower can be adjusted more accurately.

[0040] The above embodiments are preferred implementation modes of the present invention, but the implementation modes of the present invention are not limited to the above embodiments. Any other changes, modifications, substitutions, combinations, and simplifications that do not deviate from the spirit and principles of the present invention should be equivalent replacement methods and are included in the protection scope of the present invention.

Claims

1. A kitchen appliance fire control system, characterized in that: Includes force feedback knob and integrated cooktop; The integrated stove is equipped with a stove main control panel and kitchen appliances; The force feedback knob includes a brushless motor, the torque of which gradually increases as the rotation angle increases; The force feedback knob is wirelessly connected to the cooker main control board to detect the rotation data of the brushless motor and send it to the cooker main control board; The stove main control board is connected to the kitchen appliance and is used to control the fire power of the kitchen appliance according to the rotation data of the brushless motor.

2. A kitchen appliance fire control system according to claim 1, characterized in that: The force feedback knob also includes a motor main board, a knob main board and a communication component; The motor main board is used to obtain the rotation data of the brushless motor and send it to the knob main board; The knob main board is used to calculate the data for controlling the magnetic field and torque of the brushless motor according to the rotation data of the brushless motor and change the output torque of the brushless motor accordingly; The communication element is respectively connected to the knob main board and the stove main control board, and is used for sending the rotation data of the brushless motor to the stove main control board.

3. A kitchen appliance fire control system according to claim 2, characterized in that: The motor main board is equipped with a magnetic encoder, which is used to encode the changes in the magnetic field generated by the rotation of the brushless motor so that the motor main board can obtain the rotation data of the brushless motor.

4. A kitchen appliance fire control system according to claim 1, characterized in that: The kitchen appliance is provided with a fire solenoid valve, and the stove main control board is connected to the fire solenoid valve.

5. A kitchen appliance fire control system according to claim 1, characterized in that: The integrated stove is provided with a plurality of kitchen appliances and a plurality of Hall sensors corresponding to each other. The plurality of Hall sensors are respectively connected to a main control board of the stove. The force feedback knob is provided with an induction magnet. When the force feedback knob contacts any Hall sensor, the Hall sensor is triggered by the induction magnet of the force feedback knob, so that the kitchen appliance corresponding to the Hall sensor is connected to the main control board of the stove.

6. A kitchen appliance fire control system according to claim 5, characterized in that: The integrated stove is provided with an integrated stove panel, and a plurality of Hall sensors are arranged in sequence on the integrated stove panel.

7. A method for controlling the firepower of a kitchen appliance, characterized in that: The kitchen appliance fire control system according to any one of claims 1 to 6 comprises the following steps: The cooker main control board obtains the rotation data of the brushless motor when the force feedback knob is rotated; The cooker main control board is connected to the kitchen appliance and controls the fire power of the kitchen appliance accordingly according to the rotation data of the brushless motor; Among them, the torque of the brushless motor gradually increases with the increase of the rotation angle. When the firepower of the kitchen appliance is increased, the torque of the rotation force feedback knob needs to be increased.

8. The control method according to claim 7, characterized in that: The torque of the brushless motor gradually increases as the rotation angle increases. The motor main board obtains the rotation data of the brushless motor and sends it to the knob main board. The knob main board calculates the data for controlling the magnetic field and torque of the brushless motor based on the rotation data of the brushless motor and changes the output torque of the brushless motor accordingly.

9. The control method according to claim 7, characterized in that: The connection between the stove main control board and the kitchen appliances is achieved by: Putting a Hall sensor in contact with the force feedback knob, wherein the Hall sensor corresponds to the kitchen appliance to be controlled; The Hall sensor is triggered by the induction magnet of the force feedback knob, so that the kitchen appliance corresponding to the Hall sensor is connected to the stove main control board.

10. The control method according to claim 7, characterized in that: Before rotating the force feedback knob, the knob main board obtains the torque curve of the brushless motor, and the torque curve of the brushless motor is used to limit the fire power adjustment range of the kitchen appliance, wherein the torque curve of the brushless motor is generated according to a preset cooking program.

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