Mechanical knob switch, kitchen electric product, control method and related equipment

Abstract

The invention provides a mechanical knob switch, a kitchen electric product, a control method and related equipment, and relates to the technical field of kitchen electric product switch design. Comprising a mechanical part and an electronic part, the electronic part comprises a control panel, and the control panel is provided with electronic switches which are circularly arranged; the mechanical part is arranged on the surface of the control panel and comprises a rotary knob and a connecting rod which is fixedly connected with the rotary knob and can rotate along with the rotary knob, one end of the connecting rod is provided with a contact head, and the contact head keeps in contact with the control panel and can trigger all the electronic switches. According to the mechanical knob switch, the problems that an existing mechanical knob is low in safety and discomfort is caused to some people after an electronic switch is adopted are solved, and the effects of keeping the mechanical knob to meet user requirements and improving safety are achieved.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliance switch design, and in particular to a mechanical knob switch, a kitchen appliance, a control method and related equipment. Background Art

[0002] Traditional kitchen appliances, such as gas stoves, generally use mechanical knobs to control the flame intensity, and behind these knobs are actually connected to the air valve or electric switch. Therefore, considering safety and control accuracy, existing kitchen appliances gradually use electronic switches to replace traditional mechanical knobs for related control. However, although this electronic switch achieves higher precision and more intelligent control than the knob, the loss of the mechanical knob makes it difficult for some users (such as the elderly) to get used to it or even inconvenient to use.

[0003] There is currently no effective technical solution to the above problems. Summary of the invention

[0004] The purpose of the present invention is to provide a mechanical knob switch, kitchen appliance, control method and related equipment, which solves the problem that the existing mechanical knob has low safety and the use of electronic switches causes discomfort to some people, so as to achieve the effect of retaining the mechanical knob to meet user needs while improving safety.

[0005] In a first aspect, the present invention provides a mechanical knob switch, comprising a mechanical part and an electronic part, wherein the electronic part comprises a control panel, and the control panel is provided with electronic switches arranged in a circular shape; the mechanical part is arranged on the surface of the control panel and comprises a rotatable knob and a connecting rod fixedly connected to the knob and capable of rotating with the knob, wherein a contact head is provided at one end of the connecting rod, and the contact head maintains contact with the control panel and can trigger all the electronic switches.

[0006] The mechanical knob switch provided by the present invention combines a mechanical knob with an electronic switch, thereby satisfying the needs of users who are accustomed to using knobs and facilitating the improvement of safety, control accuracy and the realization of intelligent control.

[0007] Furthermore, the mechanical part also includes a sealing shell, all the knobs are mounted on the sealing shell and the sealing shell fully covers the control panel.

[0008] In a second aspect, the present invention provides a kitchen appliance product, comprising the above-mentioned mechanical knob switch.

[0009] In a third aspect, the present invention provides a control method based on the above-mentioned mechanical knob switch, comprising the following steps: S1. Obtaining the current temperature expansion coefficient of the contact head according to the ambient temperature and the material type of the contact head; S2. Obtaining the friction force between the contact head and the control panel according to the temperature expansion coefficient; S3. According to the friction force, obtaining an angle compensation value; S4. Obtaining a correction angle according to the angle compensation value and the current rotation angle of the knob; S5. Control the electronic switch according to the correction angle.

[0010] The hysteresis in the mechanical structure is compensated by controlling the parameters, thereby solving the hysteresis problem and achieving the effect of improving the control accuracy.

[0011] Furthermore, the specific steps in step S2 include: S21. Calculate the friction force according to the following formula: ; in, is the friction force, is the current temperature expansion coefficient of the contact head, is the friction coefficient between the contact head and the control panel, is the pressure between the contact head and the control panel.

[0012] Furthermore, the specific steps in step S3 include: S31. Calculate the angle compensation value according to the following formula: ; ; in, is the angle compensation value, is the preset compensation factor, is the current rotation angle of the knob, is the maximum angle compensation value.

[0013] Furthermore, the specific steps in step S4 include: S41. Calculate the correction angle according to the following formula: ; in, is the correction angle.

[0014] In a fourth aspect, the present invention provides a control device, comprising: A first acquisition module, used for acquiring a current temperature expansion coefficient of the contact head according to the ambient temperature and the material type of the contact head; A second acquisition module, used for acquiring the friction force between the contact head and the control panel according to the temperature expansion coefficient; A third acquisition module, used to acquire an angle compensation value according to the friction force; A fourth acquisition module, used to acquire a correction angle according to the angle compensation value and the current rotation angle of the knob; The control module is used to control the electronic switch according to the correction angle.

[0015] The control device provided by the present invention can solve the hysteresis problem in the mechanical structure, so that the contact head can accurately touch the corresponding electronic switch, thereby improving the overall control accuracy.

[0016] In a fifth aspect, the present invention provides an electronic device, comprising a processor and a memory, wherein the memory stores computer-readable instructions, and when the computer-readable instructions are executed by the processor, the steps in the control method provided in the third aspect are executed.

[0017] In a sixth aspect, the present invention provides a computer-readable storage medium having a computer program stored thereon, wherein when the computer program is executed by a processor, the steps of the control method provided in the third aspect are performed.

[0018] From the above, it can be seen that the mechanical knob switch provided by the present invention retains the traditional mechanical knob while combining an electronic switch. The knob simulates the process of human hand touch, thereby meeting the needs of users who are accustomed to using knobs and to a certain extent achieving higher precision and more intelligent control. At the same time, it can also avoid direct connection between the mechanical knob and the valve or electric switch, thereby effectively improving safety.

[0019] Other features and advantages of the present invention will be described in the following description, and partly become apparent from the description, or be understood by implementing the embodiments of the present invention. The purpose and other advantages of the present invention can be realized and obtained by the structures particularly pointed out in the written description and the drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 A partial exploded view of one of the kitchen appliances provided in an embodiment of the present invention.

[0021] Figure 2 An exploded view of a mechanical knob switch provided in an embodiment of the present invention.

[0022] Figure 3 for Figure 2 Schematic diagram of the local structure marked with a.

[0023] Figure 4 A flow chart of a control method provided by an embodiment of the present invention.

[0024] Figure 5 A schematic diagram of the structure of a control device provided in an embodiment of the present invention.

[0025] Figure 6 A schematic diagram of the structure of an electronic device provided by an embodiment of the present invention.

[0026] Description of labels: 100, control panel; 110, electronic switch; 210, knob; 220, connecting rod; 230, contact head; 240, sealing shell; 300, first acquisition module; 400, second acquisition module; 500, third acquisition module; 600, fourth acquisition module; 700, control module; 13, electronic device; 1301, processor; 1302, memory; 1303, communication bus. DETAILED DESCRIPTION

[0027] The embodiments of the present invention are described in detail below, examples of which are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0028] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0029] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or mutual communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0030] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0031] The disclosure below provides many different embodiments or examples to realize different structures of the present invention. In order to simplify the disclosure of the present invention, the parts and settings of specific examples are described below. Of course, they are only examples, and the purpose is not to limit the present invention. In addition, the present invention can repeat reference numbers and / or reference letters in different examples, and this repetition is for the purpose of simplicity and clarity, which itself does not indicate the relationship between the various embodiments and / or settings discussed. In addition, the present invention provides various specific examples of processes and materials, but those of ordinary skill in the art can be aware of the application of other processes and / or the use of other materials.

[0032] The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. The components of the embodiments of the present invention generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents the selected embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without making creative work belong to the scope of protection of the present invention.

[0033] It should be noted that similar numbers and letters represent similar items in the following figures, so once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined. At the same time, in the description of the present invention, the terms "first", "second", etc. are only used to distinguish the description and cannot be understood as indicating or implying relative importance.

[0034] Reference Figure 1 , Attachment Figure 2 and attached Figure 3 The present invention provides a mechanical knob switch, including a mechanical part and an electronic part. The electronic part includes a control panel 100, and the control panel 100 is arranged with electronic switches 110 arranged in a circular shape; the mechanical part is arranged on the surface of the control panel 100 and includes a rotatable knob 210 and a connecting rod 220 fixedly connected to the knob 210 and capable of rotating with the knob 210, and a contact head 230 is arranged at one end of the connecting rod 220, and the contact head 230 keeps in contact with the control panel 100 and can trigger all the electronic switches 110.

[0035] This embodiment combines a mechanical knob 210 with an electronic switch 110, and utilizes a contact head 230 on the knob 210 to simulate a finger touching the electronic switch 110 to achieve indirect control. This not only retains the advantages of the current control panel 100 in terms of high precision and intelligent control, but also avoids direct connection between the knob 210 and the valve or electric switch while retaining the traditional knob 210. This not only caters to the user's usage habits, but also achieves many effects such as safety, reliability, intelligent control, and convenience of use. In addition, utilizing the contact head 230 instead of fingers to perform operations such as tapping or sliding is beneficial to reducing the risk of erroneous touches compared to manual operations, thereby making the control more precise.

[0036] It should be noted that the electronic switch 110 can be a touch switch or a light switch. Specifically, the touch switch is triggered to respond by contacting the contact head 230 , and the light switch is triggered to respond by light affected by the contact head 230 .

[0037] In certain embodiments, referring to Figure 1 The mechanical part also includes a sealing shell 240, all knobs 210 are mounted on the sealing shell 240 and the sealing shell 240 fully covers the control panel 100. By sealing the control panel 100 with the sealing shell 240, the protection effect of the control panel 100 in terms of waterproofing, moisture-proofing and oil fume-proofing can be improved.

[0038] In some embodiments, an LED display light (not shown) may also be provided on the knob 210 , so as to facilitate the user to determine the mode or gear position according to the light when operating the knob 210 .

[0039] Reference Figure 1 The present invention provides a kitchen appliance product, including the mechanical knob switch in the above embodiment.

[0040] Affected by the processing accuracy and assembly accuracy, there is inevitably a gap between the knob 210, the connecting rod 220 and the contact head 230. This gap allows the three to move relative to each other and affects the control accuracy of the knob 210. In actual applications, since the contact head 230 always keeps in contact with the control panel 100, and the contact head 230 is affected by the ambient temperature and expands and contracts, the friction between the contact head 230 and the control panel 100 changes. Affected by the friction and the above-mentioned gap, a hysteresis phenomenon occurs in the mechanical structure. For example, the knob 210 has been rotated to a certain angle but the contact head 230 still stays in place. This hysteresis phenomenon makes it impossible for the knob 210 to accurately control the movement of the contact head 230, so that the contact head cannot accurately touch the corresponding electronic switch 110, thereby reducing the overall control accuracy.

[0041] For this, please refer to the attached Figure 4 The present invention provides a control method of the mechanical knob switch based on the above embodiment, comprising the following steps: S1. Obtain the current temperature expansion coefficient of the contact head according to the ambient temperature and the material type of the contact head; S2. Obtaining the friction force between the contact head and the control panel according to the temperature expansion coefficient; S3. Obtaining an angle compensation value according to the friction force; S4. Obtain the correction angle according to the angle compensation value and the current rotation angle of the knob; S5. Control the electronic switch according to the correction angle.

[0042] Specifically, assuming that the angle between the positions where two adjacent electronic switches 110 can trigger a response is 30°, if there is no hysteresis in the mechanical structure, the knob 210 can directly trigger a response to the next electronic switch 110 by rotating 30° from the previous electronic switch 110 .

[0043] However, in actual applications, due to the hysteresis phenomenon, before compensation, when the knob 210 rotates 30°, the contact head 230 may only rotate 25°, and at this time, the contact head 230 fails to trigger the next electronic switch 110. After compensation in this embodiment, the contact head 230 is compensated by 5° from the parameter level (the contact head 230 does not actually move), thereby simulating a signal that the contact head 230 rotates 30°, and then triggering the next electronic switch 110. This embodiment compensates for the hysteresis in the mechanical structure by controlling the parameters, thereby solving the hysteresis problem and achieving the effect of improving the control accuracy.

[0044] In some embodiments, the specific steps in step S2 include: S21. Calculate the friction force according to the following formula: ; in, is the friction force, is the current thermal expansion coefficient of the contact head, is the friction coefficient between the contact head and the control panel, It is the pressure between the contact head and the control panel.

[0045] It should be noted that the current temperature expansion coefficient of the contact head 230 and the friction coefficient between the contact head 230 and the control panel 100 are affected by the material types of the contact head 230 and the control panel 100. Therefore, the friction coefficient between the contact head 230 and the control panel 100 can be determined according to their material types, and their temperature expansion coefficient can be determined in combination with the current ambient temperature; and the pressure between the contact head 230 and the control panel 100 can be measured by setting a pressure sensor on the control panel 100.

[0046] In some embodiments, the specific steps in step S3 include: S31. Calculate the angle compensation value according to the following formula: ; ; in, is the angle compensation value, is the preset compensation factor, is the current rotation angle of the knob, is the maximum angle compensation value.

[0047] In some embodiments, the specific steps in step S4 include: S41. Calculate the correction angle according to the following formula: ; in, To correct the angle.

[0048] Please refer to Figure 5 , Figure 5 A control device in some embodiments of the present invention is integrated in a back-end control device in the form of a computer program, comprising: The first acquisition module 300 is used to acquire the current temperature expansion coefficient of the contact head according to the ambient temperature and the material type of the contact head; The second acquisition module 400 is used to acquire the friction force between the contact head and the control panel according to the temperature expansion coefficient; A third acquisition module 500 is used to acquire an angle compensation value according to the friction force; A fourth acquisition module 600, configured to acquire a correction angle according to the angle compensation value and the current rotation angle of the knob; The control module 700 is used to control the electronic switch according to the correction angle.

[0049] In some embodiments, when the second acquisition module 400 is used to acquire the friction force between the contact head and the control panel according to the temperature expansion coefficient, it executes: S21. Calculate the friction force according to the following formula: ; in, is the friction force, is the current thermal expansion coefficient of the contact head, is the friction coefficient between the contact head and the control panel, It is the pressure between the contact head and the control panel.

[0050] In some embodiments, the third acquisition module 500 performs the following when used to acquire the angle compensation value according to the friction force: S31. Calculate the angle compensation value according to the following formula: ; ; in, is the angle compensation value, is the preset compensation factor, is the current rotation angle of the knob, is the maximum angle compensation value.

[0051] In some embodiments, the fourth acquisition module 600 performs the following when acquiring the correction angle according to the angle compensation value and the current rotation angle of the knob: S41. Calculate the correction angle according to the following formula: ; in, To correct the angle.

[0052] Please refer to Figure 6 , Figure 6A structural schematic diagram of an electronic device provided in an embodiment of the present invention, the present invention provides an electronic device 13, including: a processor 1301 and a memory 1302, the processor 1301 and the memory 1302 are interconnected and communicate with each other through a communication bus 1303 and / or other forms of connection mechanisms (not marked), the memory 1302 stores computer-readable instructions executable by the processor 1301, when the electronic device is running, the processor 1301 executes the computer-readable instructions to execute the control method in any optional implementation of the above embodiment to achieve the following functions: according to the ambient temperature and the material type of the contact head, obtain the current temperature expansion coefficient of the contact head; according to the temperature expansion coefficient, obtain the friction between the contact head and the control panel; according to the friction, obtain the angle compensation value; according to the angle compensation value and the current rotation angle of the knob, obtain the correction angle; according to the correction angle, control the electronic switch.

[0053] An embodiment of the present invention provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the control method in any optional implementation of the above-mentioned embodiment is executed to achieve the following functions: obtaining the current temperature expansion coefficient of the contact head according to the ambient temperature and the material type of the contact head; obtaining the friction between the contact head and the control panel according to the temperature expansion coefficient; obtaining an angle compensation value according to the friction; obtaining a correction angle according to the angle compensation value and the current rotation angle of the knob; and controlling the electronic switch according to the correction angle.

[0054] Among them, the computer-readable storage medium can be implemented by any type of volatile or non-volatile storage device or a combination thereof, such as static random access memory (SRAM), electrically erasable programmable read-only memory (EEPROM), erasable programmable read-only memory (EPROM), programmable red-only memory (PROM), read-only memory (ROM), magnetic storage, flash memory, magnetic disk or optical disk.

[0055] In the embodiments provided by the present invention, it should be understood that the disclosed devices and methods can be implemented in other ways. The device embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation. For example, multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be through some communication interfaces, and the indirect coupling or communication connection of devices or units can be electrical, mechanical or other forms.

[0056] In addition, the units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0057] Furthermore, the functional modules in the various embodiments of the present invention may be integrated together to form an independent part, or each module may exist independently, or two or more modules may be integrated to form an independent part.

[0058] In this document, relational terms such as first and second, etc. are used merely to distinguish one entity or operation from another entity or operation, but do not necessarily require or imply any such actual relationship or order between these entities or operations.

[0059] Descriptions with reference to the terms "one embodiment", "certain embodiments", "illustrative embodiments", "examples", "specific examples", or "some examples" are intended to mean that the specific features, structures, materials, or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

[0060] The above description is only an embodiment of the present invention and is not intended to limit the protection scope of the present invention. For those skilled in the art, the present invention may have various modifications and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A mechanical knob switch, characterized in that: The invention comprises a mechanical part and an electronic part, wherein the electronic part comprises a control panel (100), wherein the control panel (100) is provided with electronic switches (110) arranged in a circular shape; the mechanical part is arranged on the surface of the control panel (100) and comprises a rotatable knob (210) and a connecting rod (220) fixedly connected to the knob (210) and capable of rotating with the knob (210), wherein a contact head (230) is arranged at one end of the connecting rod (220), wherein the contact head (230) is in contact with the control panel (100) and capable of triggering all the electronic switches (110).

2. The mechanical knob switch according to claim 1, characterized in that: The mechanical part further comprises a sealing shell (240), all the knobs (210) are mounted on the sealing shell (240), and the sealing shell (240) completely covers the control panel (100).

3. A kitchen appliance, characterized in that: It comprises a mechanical knob switch as described in any one of claims 1-2.

4. A control method based on the mechanical knob switch according to any one of claims 1-2, characterized in that: The following steps are involved: S1. Obtaining the current temperature expansion coefficient of the contact head according to the ambient temperature and the material type of the contact head; S2. Obtaining the friction force between the contact head and the control panel according to the temperature expansion coefficient; S3. According to the friction force, obtaining an angle compensation value; S4. Obtaining a correction angle according to the angle compensation value and the current rotation angle of the knob; S5. Control the electronic switch according to the correction angle.

5. The control method according to claim 4, characterized in that: The specific steps in step S2 include: S21. Calculate the friction force according to the following formula: ； in, is the friction force, is the current temperature expansion coefficient of the contact head, is the friction coefficient between the contact head and the control panel, is the pressure between the contact head and the control panel.

6. The control method according to claim 5, characterized in that: The specific steps in step S3 include: S31. Calculate the angle compensation value according to the following formula: ； ； in, is the angle compensation value, is the preset compensation factor, is the current rotation angle of the knob, is the maximum angle compensation value.

7. The control method according to claim 6, characterized in that: The specific steps in step S4 include: S41. Calculate the correction angle according to the following formula: ； in, is the correction angle.

8. A control device, characterized in that: include: A first acquisition module, used for acquiring a current temperature expansion coefficient of the contact head according to the ambient temperature and the material type of the contact head; A second acquisition module, used for acquiring the friction force between the contact head and the control panel according to the temperature expansion coefficient; A third acquisition module, used to acquire an angle compensation value according to the friction force; A fourth acquisition module, used to acquire a correction angle according to the angle compensation value and the current rotation angle of the knob; The control module is used to control the electronic switch according to the correction angle.

9. An electronic device, characterized in that: The method comprises a processor and a memory, wherein the memory stores computer-readable instructions. When the computer-readable instructions are executed by the processor, the steps in the control method according to any one of claims 4 to 7 are executed.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the steps of the control method according to any one of claims 4 to 7 are executed.

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