Household appliance and its operation method and intelligent control method

Abstract

The present invention provides a household appliance and its operation method and intelligent control method. The household appliance includes a housing, and the household appliance also includes: a display panel, the display panel is arranged on the housing, the display panel has a display area, the display area has at least two stacked display interfaces, and multiple display marks of different sizes and / or numbers are arranged on different display interfaces, and the display marks on different display interfaces are displayed under the irradiation of light of different wavelengths; a light source module for irradiating the display panel; a control unit; a working state switching unit; a control switch, the control switch is connected to the control unit; at least one actuator used in the household appliance, the control unit is connected to the actuator, so that when the control switch is triggered, the actuator is controlled by a control program to perform corresponding operations. The household appliance in the present invention has the characteristics of beautiful interface and can meet the requirements of miniaturization.

Description

Technical Field

[0001] The present invention relates to the technical field of electrical products, and in particular to a household appliance and an operating method and an intelligent control method thereof. Background Art

[0002] With the development of science and technology, home appliances have entered the era of intelligence, and users have also put forward higher requirements for home appliances.

[0003] In order to improve the aesthetics, intelligence and interactive operation performance of household appliances, display screens are commonly used in household appliances to display the working status of the household appliances and facilitate user operation.

[0004] Currently, dot matrix screens are commonly used to light up display interfaces for users to view.

[0005] However, dot matrix screens have the problems of high cost, easy failure, and complicated operation. In addition, if the functions are complex, the required screen size will be large, which limits the requirements for miniaturization of home appliances. Summary of the invention

[0006] The main purpose of the present invention is to provide a household appliance with a beautiful interface, which can meet the requirements of miniaturization and provide more intelligent operation, and an operating method and an intelligent control method thereof.

[0007] To achieve the above-mentioned object, according to one aspect of the present invention, there is provided a household appliance, comprising a housing, the household appliance further comprising: a display panel, the display panel being arranged on the housing, the display panel having a display area, the display area having at least two stacked display interfaces, multiple display marks of different sizes and / or numbers being arranged on different display interfaces, the display marks on different display interfaces being displayed under the irradiation of light of different wavelengths; a light source module for irradiating the display panel, the light source module being capable of selectively emitting light of different wavelengths, so that display marks on the same layer are induced to display by light of corresponding wavelengths in the same time period; a control unit, the control unit being connected to the light source module to adjust the light emission wavelength of the light source module, and the control unit calling a control program corresponding to the light emission wavelength after determining the light emission wavelength of the light source module, the control program having a control logic corresponding to the display mark currently displayed; a working state switching unit, the working state switching unit adjusting the light emission wavelength of the light source module and calling a corresponding control program through the control unit; a control switch, the control switch being connected to the control unit; and at least one actuator used in the household appliance, the control unit being connected to the actuator, so that when the control switch is triggered, the actuator is controlled by the control program to perform a corresponding operation.

[0008] Furthermore, the display interface is two-layered, and the light source module can selectively display the first wavelength light and the second wavelength light, which are respectively used to display the two-layer display interface.

[0009] Further, the first wavelength light is blue light; and the second wavelength light is red light.

[0010] Furthermore, the first display interface is a simplified interface, the second display interface is a complex interface, and the number of display marks in the simplified interface is less than the number of display marks in the complex interface.

[0011] Further, the size of the display mark in the simplified interface is larger than the size of the display mark in the complex interface.

[0012] Furthermore, there are multiple control switches, and the multiple control switches are set in one-to-one correspondence with the multiple display marks. When the control switch is triggered, the control program controls the execution element corresponding to the corresponding display mark to perform corresponding operations.

[0013] Furthermore, the control switch selects one or more of the display marks to be in an activated state through the control unit, and when the control switch is triggered, the control program controls the actuator corresponding to the display mark in the activated state to perform corresponding operations.

[0014] Furthermore, the control switch includes a selection switch and an execution switch, the selection switch is used to select one or more of the display marks to be in an activated state, and the execution switch is used to execute the operation corresponding to the activated display mark.

[0015] Furthermore, the selection switch and the execution switch are two key switches.

[0016] Furthermore, the selection switch is a knob switch, and the execution switch is a button switch.

[0017] Furthermore, the push button switch is arranged at the center of the knob switch.

[0018] Furthermore, the control switch is a wireless control switch.

[0019] Furthermore, the wireless control switch includes a communication device, an intelligent device, and a voice control device.

[0020] Furthermore, the working state switching unit is a knob switch or a key switch.

[0021] Furthermore, the working state switching unit and the selection switch are the same knob switch. When the household appliance is powered on, the knob switch is rotated to adjust the light wavelength of the light source module and call the corresponding control program, and the selected light wavelength and the corresponding control program are fixed through the execution switch. Then the knob switch is rotated to select a display mark, and the function corresponding to the display mark is activated through the execution switch.

[0022] Furthermore, the control unit includes multiple control modules, each control module has a different control program, and when different control modules are called, the light emission wavelength of the light source module is different. The working state switching unit includes: a remote control device, which communicates with the wireless module built into the control unit through a wireless signal to select the control module to be called; and / or a human tissue recognition device, which is connected to the human component recognition module built into the control unit to select the control module to be called; and / or a voice-controlled switch, which is connected to the voice-controlled module built into the control unit to select the control module to be called.

[0023] Furthermore, the control unit includes multiple control modules, each control module has a different control program, and when different control modules are called, the light emission wavelength of the light source module is different. The working state switching unit includes: a weight detection element for detecting the weight of the cooked product, the weight detection element is arranged in the casing, the weight detection element sends a weight signal, and the control unit receives the weight signal to select the called control module; and / or a temperature detection element for detecting the temperature of the cooked product, the temperature detection element is arranged in the casing, the temperature detection element sends a temperature signal, and the control unit receives the temperature signal to select the called control module; and / or a solid-liquid ratio detection element for detecting the solid-liquid ratio of the cooked product, the solid-liquid ratio detection element is arranged in the casing, the solid-liquid ratio detection element sends a solid-liquid ratio signal, and the control unit receives the solid-liquid ratio signal to select the called control module.

[0024] Furthermore, the control unit includes multiple control modules, each control module has a different control program, and when different control modules are called, the light emission wavelength of the light source module is different. The working state switching unit includes an appliance type detection element for detecting the types of different cooking utensils carried by the household appliance. The appliance type detection element sends an appliance type signal, and the control unit receives the appliance type signal to select the control module to be called.

[0025] Furthermore, the cooking appliance has a trigger part and / or a sensing element and / or a microcontroller with a built-in wireless module, and the appliance type detection element includes: a trigger switch, when the cooking appliance is placed in the household appliance, after the trigger switch is triggered by the trigger part, the trigger switch sends a corresponding appliance type signal; and / or a sensing switch, when the cooking appliance is placed in the household appliance, after the sensing switch senses the sensing element, the sensing switch sends a corresponding appliance type signal; and / or a wireless receiving module, the microcontroller in the cooking appliance can set a marking program wirelessly, and the marking program records the appliance type signal to trigger the corresponding control module to be called.

[0026] Furthermore, the household appliance is a cooking appliance, and the operation is a cooking operation.

[0027] Furthermore, the actuator includes one or more of a heating element, a pressure element, a steam element, a water injection element, a cooling element, a stirring element, a grinding element, an extrusion element, and a feeding element.

[0028] Furthermore, the display panel also includes a display film, and the display mark is coated on the display film.

[0029] Further, the display mark is located on a side of the display film close to the front surface of the display panel.

[0030] Furthermore, display marks are coated on both the front and rear surfaces of the display film.

[0031] Further, the control switch is located on a side of the display film facing away from the front surface of the display panel.

[0032] Furthermore, the display mark is directly coated on the surface of the display panel or embedded in the interior of the display panel.

[0033] Furthermore, the light source module has a plurality of LED lamps, and each display mark is correspondingly provided with one or more LED lamps.

[0034] Furthermore, the light source module is a light source panel, and the light source panel can adjust the wavelength.

[0035] Furthermore, the household appliance also includes a display screen, which is connected to the control unit and is used to display a corresponding control interface and / or a cooking status interface and / or a cooking guidance interface on the display screen according to a control program called by the control unit.

[0036] Furthermore, the display mark is formed by processing a photosensitive medium material, a filter medium material, or a chromophore material.

[0037] Furthermore, the household appliance further comprises at least one replacement display film, and the replacement display film can be replaced with the display film.

[0038] Furthermore, the display film and the replacement display film can be selectively plugged in and out of the display panel.

[0039] According to another aspect of the present invention, a method for operating a household appliance is provided, and the household appliance is the household appliance mentioned above, and the operating method includes: a working state switching unit sends a working state signal; a control unit receives the working state signal to adjust the light emission wavelength of the light source module so that a corresponding display mark is displayed; the control unit calls a control program corresponding to the light emission wavelength according to the light emission wavelength of the light source module; and according to the triggering condition of the control switch, the control unit calls the corresponding control program to control the execution element to perform the corresponding subsequent cooking operation.

[0040] Furthermore, the working state switching unit sends different working state signals to trigger a simplified interface or a complex interface, and all display marks in the simplified interface or the complex interface are displayed.

[0041] Furthermore, the working state switching unit sends different working state signals to trigger a simplified interface or a complex interface, and part or all of the display marks in the simplified interface or the complex interface are activated by the triggering condition of the control switch.

[0042] Furthermore, the working state switching unit is a push button switch, the control switch includes a selection switch and an execution switch, and the selection switch and the execution switch are two push button switches. When the working state switching unit is triggered, the working state switching unit sends a working state signal to adjust the light wavelength of the light source module, and determines to call the control module corresponding to the light wavelength, and the selection switch is used to select one or more of the display marks to be in an activated state, and the execution switch is used to execute the operation corresponding to the activated display mark.

[0043] Furthermore, the working state switching unit is a knob switch, the control switch includes a selection switch and an execution switch, the selection switch is a knob switch, the execution switch is a push switch, and the working state switching unit and the selection switch are the same knob switch. When the household appliance is powered on, the knob switch is rotated to adjust the light wavelength of the light source module and call the corresponding control program, and the selected light wavelength and the corresponding control program are fixed through the execution switch, and then the knob switch is rotated to select a display mark, and the function corresponding to the display mark is activated through the execution switch.

[0044] Furthermore, the control switch is a wireless control switch, which interacts with the control unit through a communication device, an intelligent device or a voice control device.

[0045] Further, when the working state switching unit is a remote control device, the remote control device communicates with the wireless module built into the control unit through wireless signals to determine the control module to be called according to the sent working state signal; and / or when the working state switching unit is a human tissue recognition device, the human tissue recognition device is connected to the human tissue recognition module built into the control unit to send a working state signal to determine the control module to be called according to the received recognition information; and / or when the working state switching unit is a voice-controlled switch, the voice-controlled switch is connected to the voice-controlled module built into the control unit to send a working state signal to determine the control module to be called according to the received voice command; and / or when the working state switching unit is a voice-controlled switch, the voice-controlled switch is connected to the voice-controlled module built into the control unit to send a working state signal to determine the control module to be called according to the received voice command; When the state switching unit is a weight detection element, the working state signal is a weight signal, and the control unit receives the weight signal to select the control module to be called; and / or when the working state switching unit is a temperature detection element, the working state signal is a temperature signal, and the control unit receives the temperature signal to select the control module to be called; and / or when the working state switching unit is a solid-liquid ratio detection element, the working state signal is a solid-liquid ratio signal, and the control unit receives the solid-liquid ratio signal to select the control module to be called; and / or when the working state switching unit is an appliance type detection element, the working state signal is an appliance type signal, and the control unit receives the appliance type signal to select the control module to be called.

[0046] Furthermore, the household appliance also includes a display screen, which is connected to the control unit and is used to display a corresponding control interface and / or a cooking status interface and / or a cooking guidance interface on the display screen according to a control program called by the control unit.

[0047] According to another aspect of the present invention, an intelligent control method for a household appliance is provided, and the household appliance is the household appliance of the above item, and the intelligent control method includes: providing a remote control device with a built-in wireless module; providing a wireless communication module in the household appliance that can communicate with the remote control device; the wireless module built into the control unit of the household appliance communicates and receives instructions from the remote control device to switch the interface display state of the household appliance and execute subsequent cooking operations accordingly.

[0048] Furthermore, the remote control device is a smart phone.

[0049] Furthermore, a remote server is provided, and the wireless modules built into the remote control device and the control unit can communicate with the remote server. The remote server stores a variety of control programs, and the remote control device and the control unit can selectively download and call the control programs; the intelligent control method also includes: the remote control device downloads the selected control program; the remote control device sends a control command to the household appliance; the household appliance receives the control program and causes the household appliance to perform corresponding cooking operations.

[0050] Furthermore, the remote control device is also provided with a program adjustment module, and is capable of uploading a new control program to a remote server; the intelligent control method also includes: the remote control device receives an input command to adjust the control program; the remote control device sends and uploads the adjusted control program to the remote server.

[0051] By applying the technical solution of the present invention, the working state switching unit can adjust the light emission wavelength of the light source module through the control unit. When the light emission wavelength of the light source module changes, the display marks on different display interfaces can be displayed, and the control program corresponding to the light emission wavelength is called. At this time, according to the triggering situation of the control switch, the corresponding actuator can perform corresponding operations.

[0052] It should be noted that the number and size of display marks on different display interfaces are inconsistent, so that multiple choices can be provided to users. It is possible to provide a display interface with rich functions for young people, and a display interface with simplified functions for the convenience of the elderly. Similarly, by changing the font size, a large font interface can be provided for the elderly, and a small font interface can be provided for the young.

[0053] In this way, the light source module and the display mark are used to realize color display, replacing the original dot matrix screen. In this way, it can not only effectively reduce the cost of household appliances, but also make the interface design of the appliance more miniaturized, and use its operation method and intelligent control method to greatly improve the interactive experience and intelligent requirements of small household appliances. At the same time, it can also greatly reduce the failure rate, effectively reduce the probability of maintenance, and improve user satisfaction. In addition, the display panel of the above structure can double, triple or even more the power menu in a limited display area, and the operation is simple, and the interactive experience is very good. BRIEF DESCRIPTION OF THE DRAWINGS

[0054] Figure 1 A schematic diagram of the structure of a household appliance in one embodiment of the present invention is shown;

[0055] Figure 2 A schematic diagram showing the display condition of a display panel of a household appliance under blue light irradiation in another embodiment of the present invention is shown;

[0056] Figure 3 Shows Figure 2 Schematic diagram of the display panel under red light;

[0057] Figure 4 A schematic diagram of the structure of a display panel in one embodiment of the present invention is shown;

[0058] Figure 5 A schematic diagram showing the structure of a display panel in another embodiment of the present invention is shown;

[0059] Figure 6 A schematic diagram showing the size relationship of two display marks at the same position of a display panel in one embodiment of the present invention is shown;

[0060] Figure 7 A schematic diagram showing the positional relationship between two display marks at the same position of a display panel in another embodiment of the present invention;

[0061] Figure 8 A control principle diagram of various components of a household appliance in one embodiment of the present invention is shown;

[0062] Fig. 9 Shows Figure 4 A schematic diagram of the connection relationship between the working state switching unit, the control unit and the light source module;

[0063] Fig.10 A flow chart showing an operating method of a household appliance in one embodiment of the present invention;

[0064] Fig.11 A schematic diagram showing an intelligent control method for household appliances in one embodiment of the present invention is shown;

[0065] Fig.12 A schematic diagram showing the structure of a household appliance in another embodiment of the present invention is shown;

[0066] Fig.13 A schematic structural diagram of a household appliance in another embodiment of the present invention is shown.

[0067] The above drawings include the following reference numerals:

[0068] 10. Casing; 20. Display panel; 21. Display film; 212. Display mark; 22. Control switch; 221. Selection switch; 222. Execution switch; 30. Light source module; 40. Control unit; 50. Working state switching unit; 60. Display screen. DETAILED DESCRIPTION

[0069] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0070] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by ordinary technicians in the technical field to which this application belongs.

[0071] In the present invention, unless otherwise specified, the directional words used, such as "up, down, top, bottom", usually refer to the directions shown in the drawings, or to the components themselves in the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "inside and outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directional words are not used to limit the present invention.

[0072] In order to solve the problems of poor interactive experience of operation interface, large size and lack of intelligence in household appliances in the prior art, especially cooking appliances, such as rice cookers, electric pressure cookers, food processors, induction cookers, etc., the present invention provides a household appliance and its operation method and intelligent control method. The following operation is a cooking operation.

[0073] like Figure 1 and Fig. 9 As shown, the household appliance includes a housing 10, a display panel 20, a control switch 22, a control unit 40, a working state switching unit 50, a light source module 30 for irradiating the display panel 20, and at least one actuator used in the household appliance. The display panel 20 is arranged on the housing 10, and the display panel 20 has a display area. The display area has at least two stacked display interfaces. Different display interfaces are provided with a plurality of display marks 212 of different sizes and / or numbers. The display marks 212 on different display interfaces are displayed under the irradiation of light of different wavelengths respectively; the light source module 30 can selectively emit light of different wavelengths to make the display marks of the same layer in the same time period The display mark 212 is displayed when it senses the light of the corresponding wavelength; the control unit 40 is connected to the light source module 30 to adjust the light emission wavelength of the light source module 30, and the control unit 40 calls the control program corresponding to the light emission wavelength after determining the light emission wavelength of the light source module 30, and the control program has a control logic corresponding to the display mark 212 currently displayed; the working state switching unit 50 adjusts the light emission wavelength of the light source module 30 and calls the corresponding control program through the control unit 40; the control switch 22 is connected to the control unit 40; the control unit 40 is connected to the actuator to control the actuator to perform corresponding operations through the control program when the control switch 22 is triggered.

[0074] It should be noted that the "color rendering" referred to here refers to "display color". That is, when the light source module 30 does not emit light, the display mark 212 cannot be seen by the naked eye. Only when the light of the corresponding wavelength illuminates the display mark 212, the display mark 212 can be seen by the naked eye.

[0075] In this way, the light source module 30 and the display mark 212 are used to realize color display, replacing the original dot matrix screen. In this way, it can not only effectively reduce the cost of household appliances, but also make the interface design of the appliance more miniaturized, and use its operation method and intelligent control method to greatly improve the interactive experience and intelligent requirements of small household appliances. At the same time, it can also greatly reduce the failure rate, effectively reduce the probability of maintenance, and improve user satisfaction. In addition, the display panel 20 of the above structure can double, triple or even more the power menu in a limited display area, and the operation is simple, and the interactive experience is very good.

[0076] Optionally, the display mark 212 is formed by processing a photosensitive medium material, a filter medium material, or a chromophore material. For a photosensitive medium, the corresponding light irradiated onto the medium can excite the medium to develop color to display a pattern. For a filter medium, due to the different wavelengths of light, through the principle of filtering, two or more optical materials are used at the same position, and the wavelengths of the light sources are different, so that different contents are displayed in color; for a chromophore material, the optical material is a coating material containing different chromophores, and this material is combined with a transparent material to only allow light of a specific wavelength to pass through and display color. Optionally, the display mark 212 includes display words and / or display patterns.

[0077] It should be noted that the number and size of the display marks 212 on different display interfaces are inconsistent, so that multiple choices can be provided to the user. A display interface with rich functions can be provided for young people, and a display interface with simplified functions can be provided for the convenience of the elderly. Similarly, a large font interface can be provided for the elderly and a small font interface can be provided for the young by changing the font size.

[0078] Specifically, the first display interface is a simplified interface, the second display interface is a complex interface, and the number of display marks 212 in the simplified interface is less than the number of display marks 212 in the complex interface.

[0079] Furthermore, the size of the display mark 212 in the simplified interface is larger than the size of the display mark 212 in the complex interface.

[0080] exist Figures 2 to 7 In the embodiment shown, the display interface is two layers, and the light source module 30 can selectively display the first wavelength light and the second wavelength light, respectively used to display the two layers of the display interface. When the light source module 30 emits the first wavelength light, the first display mark 212 at the same location is colored, and the second display mark 212 is hidden; when the light source module 30 emits the second wavelength light, the second display mark 212 at the same location is colored, and the first display mark 212 is hidden.

[0081] Specifically, the first wavelength of light can be set to blue light; the second wavelength of light can be set to red light. Taking the chromophore material as an example, when the light source module 30 emits a long wave (red light), the display mark 212 of the red chromophore material appears, and other parts are not colored. When the light source module 30 emits a short wave (blue light), the display mark 212 of the blue chromophore material appears, and other parts are not colored. "Heating" and "Cooling" are printed in the same place. When the red light is on, only "Heating" is displayed, and when the blue light is on, only "Cooling" is displayed. The interface is simple and easy to understand.

[0082] by Figure 2 and Figure 3 For example, when the red light is emitted, the display panel 20 is displayed as follows Figure 2 As shown, ai is only for illustration and can be set according to the actual product, such as "stirring". When the blue light is emitted, the display panel 20 is displayed as Figure 3 As shown, AD is only for illustration and can be set according to the actual product. Among them, a and A are located at the same or adjacent positions, and the displayed texts are usually different, but can also be the same individually.

[0083] Optionally, the display mark 212 may also be a progress display for each functional interface.

[0084] according to Figure 2 and Figure 3 As shown, by changing the wavelength of the light source module 30, the number of display marks 212 on different display interfaces of the display panel 20 is different. In this way, at the same position of the display panel 20, there are not necessarily two display marks 212 overlapping each other. Figure 2 , the number of display marks 212 is 9. Figure 3 In the example shown in FIG. 1 , the number of display marks 212 is 4. That is, the number of display marks 212 is inconsistent in different display interfaces.

[0085] Moreover, in Figure 2 and Figure 3 In the illustrated embodiment, not only are the numbers of display marks 212 on the two display interfaces different, but the sizes of the display marks 212 also vary.

[0086] exist Figure 6 In the embodiment shown, the number of display marks 212 in the two display interfaces is the same. However, the sizes of the display marks 212 in different display interfaces are different. The two display marks 212 are overlapped with each other. In this way, when the light emission wavelength of the light source module 30 is switched, the two display marks 212 can switch colors.

[0087] exist Figure 7In the illustrated embodiment, the number of display marks 212 of the two display interfaces is the same. However, in different display interfaces, the positions of the display marks 212 are slightly shifted, and the two are adjacent to each other. In this way, when the light emission wavelength of the light source module 30 is switched, the two display marks 212 can switch colors. The benefit of adjacent settings is that the coating difficulty is reduced, but the corresponding occupied size will become larger, and it needs to be selected according to the needs of the specific actual product. In addition, the sizes of the display marks 212 in different display interfaces may also be different.

[0088] In a specific embodiment not shown in the figure, the two display marks 212 at the same location are partially overlapped. Similarly, when the light wavelength of the light source module 30 is switched, the two display marks 212 can also switch colors.

[0089] It should be noted that in the above embodiments, Figure 3 For example, the function represented by AD can also be replaced by DG. The specific function can be adjusted according to the personalized needs of the user and can be selected or changed through operations.

[0090] exist Figure 4 In the specific implementation shown, the display panel 20 further includes a display film 21, and the display mark 212 is coated on the display film 21. In this way, a substrate is provided for coating the display mark 212, which is convenient for processing.

[0091] Specifically, the display mark 212 is located on a side of the display film 21 close to the front surface of the display panel 20 .

[0092] exist Figure 4 In the specific embodiment shown, the light source module 30 has a plurality of LED lamps, and one or more LED lamps are correspondingly arranged at each display mark 212. When there are a plurality of LED lamps, different LED lamps can light up different colors. When there is only one LED lamp, the LED lamp can switch to display different colors (i.e., switch to light of different wavelengths).

[0093] In an optional embodiment not shown in the figure, the display mark 212 is coated on both the front and rear surfaces of the display film 21. In this way, the display mark 212 can be processed on the front and rear surfaces of the display film 21 at the same time, thereby improving the processing efficiency.

[0094] exist Figure 5 In the specific embodiment shown, the display film 21 is not provided in the display panel 20, and the display mark 212 is directly coated on the surface of the display panel 20 or embedded in the interior of the display panel 20. The display panel 20 of such a structure has a higher integration degree and is more cost-effective.

[0095] exist Figure 5In the specific embodiment shown, the light source module 30 is a light source panel, and the light source panel can adjust the wavelength. Similar to LED lights that can display different colors, only one light source panel is required to achieve light switching, and assembly is simpler.

[0096] The household appliance of the present invention further includes at least one replacement display film, which can be replaced with the display film 21. By replacing different replacement display films, the interface display function of the display panel 20 is further expanded, making the functions of the household appliance more abundant.

[0097] Optionally, the display film 21 and the replacement display film can be selectively plugged in and out of the display panel 20. In this way, the disassembly and assembly operation of the replacement display film is facilitated.

[0098] exist Figure 2 and Figure 3 In the specific embodiment shown, there are multiple control switches 22, and the multiple control switches 22 are set in a one-to-one correspondence with the multiple display marks 212. When the control switch 22 is triggered, the corresponding display mark 212 corresponding to the actuator is controlled by the control program to perform a corresponding operation. In this way, when a certain display interface is lit, the control switch 22 corresponding to each display mark 212 is in an available state. At this time, triggering the corresponding control switch 22 can make the corresponding actuator perform a corresponding action.

[0099] It should be noted that, in this embodiment, the working state switching unit 50 sends different working state signals to trigger a simplified interface or a complex interface, and all display marks 212 in the simplified interface or the complex interface are displayed.

[0100] Optionally, the control switch 22 is located on a side of the display film 21 facing away from the front surface of the display panel 20 .

[0101] like Figure 8 In the specific embodiment shown, the household appliance further includes a display screen 60, which is connected to the control unit 40 and is used to display a corresponding control interface and / or a cooking status interface and / or a cooking guide interface on the display screen 60 according to the control program called by the control unit 40. In this way, by using the display screen 60 as an output device, the user can easily view the current operation status, understand the operation progress, and feel more intuitive. The display screen 60 is usually selected for some small household appliances that do not have too high requirements on size. If the requirements for small size are very high, there is no need to add the display screen 60.

[0102] Specifically, if Figure 8As shown, the control unit 40 includes a plurality of control modules, each of which has a different control program. When different control modules are called, the light wavelength of the light source module 30 is different. That is, when a certain control module is called, the control program of the control module enters the enabled state, and then the control switch 22 is triggered to enable the actuator to perform the corresponding operation according to the displayed function.

[0103] It should be noted that each control module has a different control program, and different control programs determine that different display interfaces can be displayed on the display screen 60. Of course, the display interface is not limited to the control interface and / or cooking status interface and / or cooking guidance interface listed above. It can also be a startup welcome interface, a fault alarm interface, etc.

[0104] From the above description, it can be known that the key point of enabling the light source module 30 to change the emission wavelength is that the working state switching unit 50 needs to give an instruction so that a certain control module in the control unit 40 is called. As for how to make the working state switching unit 50 give an instruction, multiple ways will be given below.

[0105] Method 1

[0106] The control module is selected by using a key switch or a knob switch.

[0107] In this way, the working state signal can be sent to adjust the luminous wavelength of the light source module 30 by triggering a key switch or rotating the knob switch, and the corresponding control module can be called. When the working state switching unit 50 is only a key switch or a knob switch, a control module can be called by default after powering on, and then switch to another control module after operating the key switch or the knob switch. The user can make a corresponding control module be called by pressing a button or turning a knob. For example, for an electric rice cooker, the control module corresponding to cooking can be called by default, and when the key switch or the knob switch represented by the working state switching unit 50 is triggered, it is switched to calling the control module corresponding to cooking porridge, and so on.

[0108] Of course, if the operating state switching unit 50 corresponds to a plurality of key switches, different key switches can directly call different control modules. For example, for an electric rice cooker, one key switch can call the control module corresponding to cooking rice, and another key switch can call the control module corresponding to cooking porridge, etc.

[0109] Method 2

[0110] The working state switching unit 50 includes a remote control device, which communicates with the wireless module built into the control unit 40 through wireless signals to determine the control module to be called according to the sent working state signal. In this way, the user can also communicate with the control unit 40 through the remote control device to select the working state of the household appliance by remote control.

[0111] Specifically, the remote control device is a device such as a smartphone or a remote control panel.

[0112] Method 3

[0113] In order to improve the intelligence of household appliances, avoid misoperation, and set operation permissions, the working state switching unit 50 includes a human tissue recognition device, which is connected to the human component recognition module built into the control unit 40, so as to send a working state signal to determine the control module to be called according to the received recognition information. In this way, only human information that can be recognized by the household appliance can have the authority to operate the household appliance, which can effectively avoid accidental injuries caused by children's mis-touch.

[0114] Specifically, the human tissue recognition device can use fingerprint recognition, iris recognition and other methods. Taking fingerprint recognition as an example, the index finger and middle finger can be used to call different control modules respectively to display different display interfaces. For example, for an electric rice cooker, the index finger can be used to call the control module for cooking rice, the middle finger can be used to call the control module for cooking porridge, and so on.

[0115] Method 4

[0116] In addition, the operating state switching unit 50 can also include a voice-activated switch, which is connected to the built-in voice-activated module of the control unit 40, so as to send a working state signal to determine the control module to be called according to the voice command received. Like this, according to the command of the voice, different control modules can be called to select the working state. For example, for an electric rice cooker, after the user sends the instruction of "cooking", the control module of cooking will be called by the household appliance, and the control program corresponding to cooking will be put into use.

[0117] Method 5

[0118] The working state switching unit 50 includes a weight detection element for detecting the weight of the product being cooked. The weight detection element is arranged in the housing 10. The working state signal is a weight signal. The weight detection element sends a weight signal. The control unit 40 receives the weight signal to select the control module to be called. In this way, according to the weight of the product being cooked, the control module suitable for cooking the product can be called so that the corresponding control program can be put into use. Taking the frying machine as an example, when performing the cooking operation of scrambling eggs or making pancakes, the same cooking mode cannot be used for cooking operations because the weights of the two are inconsistent. Through the weight detection element, the quality of the product being cooked can be detected. According to the quality, the corresponding control module and control program are selected, that is, the parameters such as cooking time and cooking temperature are selected to make the ingredients have a better cooking taste.

[0119] Method 6

[0120] The working state switching unit 50 includes a temperature detection element for detecting the temperature of the product being cooked. The temperature detection element is arranged in the housing 10. The working state signal is a temperature signal. The temperature detection element sends a temperature signal. The control unit 40 receives the temperature signal to select the control module to be called. In this way, the corresponding control module and control program are selected according to the temperature of the product being cooked. In a specific embodiment, when the temperature of the product being cooked is less than 20 degrees, the control module for heating is selected to heat the product to ensure that the user will not eat cold food and suffer from diarrhea.

[0121] Method 7

[0122] The working state switching unit 50 includes a solid-liquid ratio detection element for detecting the solid-liquid ratio of the cooked product. The solid-liquid ratio detection element is disposed in the housing 10. The working state signal is a solid-liquid ratio signal. The solid-liquid ratio detection element sends a solid-liquid ratio signal. The control unit 40 receives the solid-liquid ratio signal to select the control module to be called. In this way, the corresponding control module and control program can be selected according to the solid-liquid ratio of the cooked product. In a specific embodiment, when the solid-liquid ratio of the cooked product is too high, the control module for heating is selected to heat the product to reduce the solid-liquid ratio of the product.

[0123] Method 8

[0124] The working state switching unit 50 includes an appliance type detection element for detecting the types of different cooking appliances carried by the household appliance. The appliance type detection element sends an appliance type signal, and the control unit 40 receives the appliance type signal to select the control module to be called. That is, by detecting the type of the cooking appliance, the corresponding control module can be directly selected to perform the cooking operation according to the different types of the cooking appliances.

[0125] For example, cooking utensils may have different sizes, and different sizes of cooking utensils correspond to different cooking operations. Large-sized cooking utensils usually contain a large amount of ingredients, and when performing cooking operations, it is necessary to appropriately extend the cooking time and increase the cooking temperature; while in smaller cooking utensils, the amount of ingredients is usually small, and at this time, too long cooking time and cooking temperature are not required. Therefore, through the detection of the type of utensils, the control module suitable for the cooking utensils can be called, thereby improving the degree of intelligence.

[0126] According to different detection methods, there are several examples below for reference.

[0127] Embodiment 1

[0128] The cooking utensil has a trigger, and the utensil type detection element includes a trigger switch. The cooking utensil is placed in the household appliance. After the trigger switch is triggered by the trigger, the trigger switch sends a corresponding utensil type signal. In other words, a protruding structure can be provided on the cooking utensil as a trigger, and a trigger switch matching the trigger is provided in the household appliance. When the cooking utensil is placed in place, the trigger can press the trigger switch. If the match is successful, the trigger switch sends a corresponding utensil type signal, so that the corresponding control module is called.

[0129] Embodiment 2

[0130] The cooking utensil has a sensing element, and the utensil type detection element includes a sensing switch. The cooking utensil is placed in the household appliance. After the sensing switch senses the sensing element, the sensing switch sends a corresponding utensil type signal. Different sensing elements can be installed on pots and cups of different sizes. The sensing switch detects the control module and control program that the cooking utensil should call according to the different sensing elements, so as to improve the automation of the household appliance.

[0131] Example 1: A sensing element is provided on the cooker, the sensing element is a magnetic device, a magnetic sensing switch is provided on the cooker body, the type of the cooking utensil is determined by magnetic induction, and a corresponding control module is called.

[0132] Example 2: The cooker is provided with a resistance element, which is a sensing element. A resistance sensing switch for sensing resistance value is provided on the cooker body. The type of the cooking utensil is determined by sensing different resistance values, and the corresponding control module is called.

[0133] Embodiment 3

[0134] The cooking appliance has a microcontroller with a built-in wireless module, and the appliance type detection element includes a wireless receiving module. The microcontroller in the cooking appliance can set a marking program wirelessly, and the marking program records the appliance type signal to trigger the corresponding control module to be called. In other words, the microcontroller of the cooking appliance stores the appliance type signal, and the appliance type signal can be modified. The microcontroller communicates with the control unit 40 of the household appliance, so that the corresponding control module can be called. Since different control modules record different control programs, the interface display is also different according to the different control programs.

[0135] From the above content, we can see that reference Fig.10 The operation method of the household appliance includes: the working state switching unit 50 sends a working state signal; the control unit 40 receives the working state signal to adjust the light emission wavelength of the light source module 30 so that the corresponding display mark 212 is displayed; the control unit 40 calls the control program corresponding to the light emission wavelength according to the light emission wavelength of the light source module 30; according to the triggering condition of the control switch 22, the control unit 40 calls the corresponding control program to control the execution element to perform the corresponding subsequent cooking operation.

[0136] In addition to the above embodiment in which each display mark 212 corresponds to one control switch 22 , the number of control switches 22 in use can be effectively controlled by changing the specific structure of the control switch 22 .

[0137] exist Figure 1 In the specific embodiment shown, the control switch 22 includes a selection switch 221 and an execution switch 222. The selection switch 221 is used to select one or more of the multiple display marks 212 to be in an activated state, and the execution switch 222 is used to execute the operation corresponding to the activated display mark 212. Figure 2 and 3 The main difference between the illustrated embodiments is that, in the same time period, in the same display interface, only all or part of the display marks 212 are colored; the control switch 22 is connected to the control unit 40 and one or more of them are selected to be in an activated state through the control unit 40; the control unit 40 is connected to the actuator so that when the control switch 22 is triggered, the corresponding actuator in the activated state is controlled by the control program to perform corresponding operations.

[0138] It should be noted that, in this embodiment, the work state switching unit 50 sends different work state signals to trigger a simplified interface or a complex interface, and part or all of the display marks 212 in the simplified interface or the complex interface are activated by the triggering of the control switch 22. According to the specific structure of the control switch 22, three reference embodiments are provided.

[0139] Reference Example 1

[0140] exist Figure 1 In the specific embodiment shown, the selection switch 221 and the execution switch 222 are two key switches, and the working state switching unit 50 is a key switch.

[0141] When the working state switching unit 50 is triggered, the working state switching unit 50 sends a working state signal to adjust the light emission wavelength of the light source module 30, and determines to call the control module corresponding to the light emission wavelength, and the selection switch 221 is used to select to make one or more of the display marks 212 in an activated state, and the execution switch 222 is used to execute the operation corresponding to the activated display mark 212.

[0142] Specifically, the button switch of the working state switching unit 50 can be used to select interface A or B. The button switch corresponding to the selection switch 221 is used to select a display mark 212 to display (such as brighter than other display marks 212) after a certain interface is selected, such as interface A is selected. The button switch corresponding to the execution switch 222 is used to confirm after a certain display mark 212 is selected. For example, after the "heating" display mark 212 is selected, pressing the button switch corresponding to the execution switch 222 executes the heating function, and pressing it again cancels the heating function, and so on.

[0143] Reference Example 2

[0144] And in Fig.12 In the specific embodiment shown, the selection switch 221 is a knob switch, and the execution switch 222 is a push button switch. The working state switching unit 50 is a knob switch. Optionally, the working state switching unit 50 and the selection switch 221 are the same knob switch. When the household appliance is powered on, the knob switch is rotated to adjust the light wavelength of the light source module 30 and call the corresponding control program, and the selected light wavelength and the corresponding control program are fixed through the execution switch 222, and then the knob switch is rotated to select a display mark 212, and the function corresponding to the display mark 212 is activated through the execution switch 222.

[0145] For example, after powering on, rotate the knob switch first to switch between interfaces A and B. When interface A is needed, press the button switch when it stays on interface A, and interface A will be fixed at this time (if you make a wrong selection, press the button switch again to rotate the interface again). If you make no wrong selection, rotate the knob switch again to activate a display mark 212. After confirmation, press the button switch again to activate its corresponding function.

[0146] Optionally, the push button switch is arranged in the center of the knob switch, which not only has a compact structure, but also has a beautiful appearance and is easy to install.

[0147] exist Fig.13 In the specific embodiment shown, the control switch 22 is a wireless control switch. In this way, the appearance of the household appliance can be made neater, and the problem of misoperation can be effectively avoided, which is conducive to improving the degree of intelligence.

[0148] Optionally, the wireless control switch includes a communication device, an intelligent device, or a voice control device, and interacts with the control unit 40 via the communication device, the intelligent device, or the voice control device.

[0149] Furthermore, the smart device may be a mobile phone, which controls the interface rotation, the display mark 212 selection, and the final cooking rotation.

[0150] The communication device can be a mobile phone or a remote control. Voice control equipment is more intelligent, and can realize intelligent operation of household appliances by recognizing the user's voice content. Considering that current electrical products have entered the era of intelligence, the intelligent control method of household appliances in the present invention includes: providing a remote control device with a built-in wireless module; a wireless communication module that can communicate with the remote control device is provided in the household appliance; the wireless module built into the control unit 40 of the household appliance communicates and receives instructions from the remote control device to switch the interface display state of the household appliance and execute subsequent cooking operations accordingly. Please refer to Fig.11 Here, the working principle is similar to the above-mentioned method 3, and the household appliance can be operated remotely or face-to-face. Optionally, the remote control device is a smart phone.

[0151] With the acceleration of the replacement of electrical appliances, electrical appliances must be continuously upgraded to make them popular with users. Therefore, in the present invention, a remote server is further provided, and the wireless modules built into the remote control device and the control unit 40 can communicate with the remote server. The remote server stores a variety of control programs, and the remote control device and the control unit 40 can selectively download and call the control program; the intelligent control method also includes: the remote control device downloads the selected control program; the remote control device sends a control command to the household appliance; the household appliance receives the control program and causes the household appliance to perform the corresponding cooking operation. In this way, a download channel can be established between the household appliance and the remote server, and the control program can be continuously updated, and the cooking mode can be enriched or modified to meet the different needs of users and improve user recognition of the product.

[0152] In addition, the remote control device is also provided with a program adjustment module, and can upload a new control program to a remote server; the intelligent control method also includes: the remote control device receives an input command to adjust the control program; the remote control device sends and uploads the adjusted control program to the remote server. In this way, it is convenient for the staff to correct the control program at any time, solve program failures, and improve the timeliness and intelligence of maintenance. In addition, users can also customize their own cooking modes and upload them to a remote server for other users to download and use, thus realizing cooking communication between users, that is, the kitchen appliance of the present invention can realize the popularization of various cooking modes required.

[0153] Optionally, the actuator includes one or more of a heating element, a pressure element, a steam element, a water injection element, a cooling element, a stirring element, a grinding element, an extrusion element, and a feeding element. When the categories of household appliances are different, the specific selection of the actuator is different.

[0154] Taking an electric cooker as an example, in the electric cooker, the actuator may be one or more of a heating element, a pressure element, a steam element, a water injection element, and a cooling element. More specifically, the electric cooker may be an electric rice cooker, an electric stew pot, and the like.

[0155] Taking a food processor as an example, inside the food processor, the actuator may be one or more of a stirring element, a grinding element, an extrusion element, and a feeding element.

[0156] Obviously, the above-described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0157] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, it indicates the presence of features, steps, operations, devices, components and / or combinations thereof.

[0158] It should be noted that the terms "first", "second", etc. in the specification and claims of the present application and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the numbers used in this way can be interchanged where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than those illustrated or described herein.

[0159] The above description is only a preferred embodiment of the present invention and is not intended to limit 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 household appliance, comprising a housing (10), characterized in that: The household appliance further comprises: A display panel (20), the display panel (20) being arranged on the housing (10), the display panel (20) having a display area, the display area having at least two stacked display interfaces, a plurality of display marks (212) of different sizes and numbers being arranged on different display interfaces, the display marks (212) on different display interfaces being displayed under illumination of light of different wavelengths; A light source module (30) for illuminating the display panel (20), the light source module (30) being capable of selectively emitting light of different wavelengths, so that the display marks (212) on the same layer are induced to display light of corresponding wavelengths in the same time period; a control unit (40), the control unit (40) being connected to the light source module (30) to adjust the light emission wavelength of the light source module (30), and the control unit (40) calling a control program corresponding to the light emission wavelength after determining the light emission wavelength of the light source module (30), the control program having control logic corresponding to the display mark (212) currently displayed; A working state switching unit (50), the working state switching unit (50) adjusting the light emission wavelength of the light source module (30) and calling the corresponding control program through the control unit (40); A control switch (22), the control switch (22) being connected to the control unit (40); At least one actuator used in the household appliance, the control unit (40) being connected to the actuator so as to control the actuator to perform corresponding operations through the control program when the control switch (22) is triggered; The display interface has two layers, the first display interface is a simplified interface, and the second display interface is a complex interface, the number of display marks (212) in the simplified interface is less than the number of display marks (212) in the complex interface; The display panel (20) further comprises a display film (21), wherein the display film (21) is pluggably connected to the display panel (20); The working state switching unit (50) sends different working state signals to trigger the simplified interface or the complex interface, and part or all of the display marks (212) in the simplified interface or the complex interface are activated by the triggering condition of the control switch (22); The control switch (22) selects one or more of the display marks (212) to be in an activated state through the control unit (40), and when the control switch (22) is triggered, the control program controls the actuator corresponding to the display mark (212) in the activated state to perform a corresponding operation; The control switch (22) comprises an execution switch (222), and the execution switch (222) is used to execute an operation corresponding to the activated display mark (212); The execution switch (222) is a key switch; The display mark (212) is formed by processing a photosensitive medium material, a filter medium material, or a chromophore material; The household appliance further comprises at least one replacement display film, wherein the replacement display film can be replaced with the display film (21); The display film (21) and the replacement display film can be selectively plugged into and removed from the display panel (20); The size of the display mark (212) in the simplified interface is larger than the size of the display mark (212) in the complex interface.

2. The household appliance according to claim 1, characterized in that: The light source module (30) can selectively display light of a first wavelength and light of a second wavelength, respectively used to display the two layers of the display interface.

3. The household appliance according to claim 2, characterized in that: The first wavelength light is blue light; the second wavelength light is red light.

4. The household appliance according to any one of claims 1 to 3, characterized in that: There are a plurality of control switches (22), and the plurality of control switches (22) are arranged in one-to-one correspondence with the plurality of display marks (212). When the control switch (22) is triggered, the control program controls the corresponding execution element of the corresponding display mark (212) to perform a corresponding operation.

5. The household appliance according to claim 1, characterized in that: The control switch (22) further comprises a selection switch (221), wherein the selection switch (221) is used to select one or more of the display marks (212) to be in an activated state.

6. The household appliance according to claim 5, characterized in that: The selection switch (221) is a push button switch.

7. The household appliance according to claim 5, characterized in that: The selection switch (221) is a knob switch.

8. The household appliance according to claim 7, characterized in that: The push button switch is arranged at the center of the knob switch.

9. The household appliance according to any one of claims 1 to 3, characterized in that: The control switch (22) is a wireless control switch.

10. The household appliance according to claim 9, characterized in that: The wireless control switch includes a communication device, an intelligent device, and a voice control device.

11. The household appliance according to any one of claims 1 to 3, characterized in that: The working state switching unit (50) is a knob switch or a key switch.

12. The household appliance according to claim 7 or 8, characterized in that: The working state switching unit (50) and the selection switch (221) are the same rotary switch. When the household appliance is powered on, the rotary switch is rotated to adjust the light emission wavelength of the light source module (30) and call the corresponding control program, and the selected light emission wavelength and the corresponding control program are fixed through the execution switch (222). The rotary switch is then rotated to select a display mark (212), and the function corresponding to the display mark (212) is activated through the execution switch (222).

13. The household appliance according to any one of claims 1 to 3, characterized in that: The control unit (40) comprises a plurality of control modules, each of the control modules having a different control program, and when different control modules are called, the light emission wavelength of the light source module (30) is different, and the working state switching unit (50) comprises: A remote control device, the remote control device communicating with a wireless module built into the control unit (40) via a wireless signal to select the control module to be called; and / or A human tissue recognition device, the human tissue recognition device being connected to a human component recognition module built into the control unit (40) to select the control module to be called; and / or A voice-controlled switch, the voice-controlled switch being connected to a voice-controlled module built into the control unit (40) to select the control module to be called.

14. The household appliance according to any one of claims 1 to 3, characterized in that: The control unit (40) comprises a plurality of control modules, each of the control modules having a different control program, and when different control modules are called, the light emission wavelength of the light source module (30) is different, and the working state switching unit (50) comprises: a weight detection element for detecting the weight of the product being cooked, the weight detection element being arranged in the housing (10), the weight detection element sending a weight signal, the control unit (40) receiving the weight signal to select the control module to be called; and / or a temperature detection element for detecting the temperature of the cooked product, the temperature detection element being arranged in the housing (10), the temperature detection element sending a temperature signal, the control unit (40) receiving the temperature signal to select the control module to be called; and / or A solid-liquid ratio detection element is used to detect the solid-liquid ratio of the cooked product, the solid-liquid ratio detection element is arranged in the housing (10), the solid-liquid ratio detection element sends a solid-liquid ratio signal, and the control unit (40) receives the solid-liquid ratio signal to select the control module to be called.

15. The household appliance according to any one of claims 1 to 3, characterized in that: The control unit (40) comprises a plurality of control modules, each of the control modules having a different control program; when different control modules are called, the light emission wavelength of the light source module (30) is different; the working state switching unit (50) comprises an appliance type detection element for detecting the types of different cooking appliances carried by the household appliance; the appliance type detection element sends an appliance type signal; the control unit (40) receives the appliance type signal to select the control module to be called.

16. The household appliance according to claim 15, characterized in that: The cooking utensil has a trigger and / or a sensing element and / or a microcontroller with a built-in wireless module, and the utensil type detection element includes: A trigger switch, wherein the cooking utensil is placed in the household appliance, and after the trigger switch is triggered by the trigger member, the trigger switch sends a corresponding signal of the utensil type; and / or An induction switch, wherein the cooking utensil is placed in the household appliance, and after the induction switch senses the induction element, the induction switch sends a corresponding signal of the utensil type; and / or A wireless receiving module, a microcontroller in the cooking appliance can set a marking program wirelessly, and the marking program records the appliance type signal to trigger the corresponding control module to be called.

17. The household appliance according to any one of claims 1 to 3, characterized in that: The household appliance is a cooking appliance, and the operation is a cooking operation.

18. The household appliance according to any one of claims 1 to 3, characterized in that: The actuator includes one or more of a heating element, a pressure element, a steam element, a water injection element, a cooling element, a stirring element, a grinding element, an extrusion element, and a feeding element.

19. The household appliance according to claim 1, characterized in that: The display mark (212) is coated on the display film (21).

20. The household appliance according to claim 19, characterized in that: The display mark (212) is located on a side of the display film (21) close to the front surface of the display panel (20).

21. The household appliance according to claim 19, characterized in that: The display mark (212) is coated on both the front and rear surfaces of the display film (21).

22. The household appliance according to any one of claims 19 to 21, characterized in that: The control switch (22) is located on a side of the display film (21) that is away from the front surface of the display panel (20).

23. The household appliance according to any one of claims 1 to 3, characterized in that: The display mark (212) is directly coated on the surface of the display panel (20) or embedded in the interior of the display panel (20).

24. The household appliance according to any one of claims 1 to 3, characterized in that: The light source module (30) has a plurality of LED lights, and one or more of the LED lights are correspondingly arranged at each display mark (212).

25. The household appliance according to any one of claims 1 to 3, characterized in that: The light source module (30) is a light source panel, and the wavelength can be adjusted.

26. The household appliance according to any one of claims 1 to 3, characterized in that: The household appliance further comprises a display screen (60), wherein the display screen (60) is connected to the control unit (40) and is used for displaying a corresponding control interface and / or a cooking status interface and / or a cooking guidance interface on the display screen (60) according to the control program called by the control unit (40).

27. A method for operating a household appliance, characterized in that: The household appliance is a household appliance according to any one of claims 1 to 26, and the operating method comprises: The working state switching unit (50) sends a working state signal; The control unit (40) receives the working state signal to adjust the light emission wavelength of the light source module (30) so that the corresponding display mark (212) is displayed; The control unit (40) calls a control program corresponding to the light emission wavelength according to the light emission wavelength of the light source module (30); According to the triggering condition of the control switch (22), the control unit (40) calls the corresponding control program to control the execution element to perform the corresponding subsequent cooking operation.

28. The operating method according to claim 27, characterized in that: The working state switching unit (50) can trigger a simplified interface or a complex interface by sending different working state signals, and all display marks (212) in the simplified interface or the complex interface are displayed.

29. The operating method according to claim 27, characterized in that: The working state switching unit (50) can trigger a simplified interface or a complex interface by sending different working state signals, and part or all of the display marks (212) in the simplified interface or the complex interface are activated by the triggering condition of the control switch (22).

30. The operating method according to claim 27, characterized in that: The working state switching unit (50) is a push switch, the control switch (22) comprises a selection switch and an execution switch, and the selection switch and the execution switch are two push switches. When the working state switching unit (50) is triggered, the working state switching unit (50) sends the working state signal to adjust the light emission wavelength of the light source module (30), and determines to call the control module corresponding to the light emission wavelength, and the selection switch is used to select so that one or more of the display marks (212) are in an activated state, and the execution switch is used to execute the operation corresponding to the activated display mark (212).

31. The operating method according to claim 27, characterized in that: The working state switching unit (50) is a knob switch, the control switch (22) comprises a selection switch and an execution switch, the selection switch is a knob switch, the execution switch is a push button switch, and the working state switching unit (50) and the selection switch are the same knob switch. When the household appliance is powered on, the knob switch is rotated to adjust the light wavelength of the light source module (30) and call the corresponding control program, and the selected light wavelength and the corresponding control program are fixed through the execution switch, and the knob switch is then rotated to select a display mark (212), and the function corresponding to the display mark (212) is activated through the execution switch.

32. The operating method according to claim 27, characterized in that: The control switch (22) is a wireless control switch, and interacts with the control unit (40) via a communication device, an intelligent device or a voice control device.

33. The operating method according to claim 27, characterized in that: When the working state switching unit (50) is a remote control device, the remote control device communicates with a wireless module built into the control unit (40) via a wireless signal, so as to determine the control module to be called according to the working state signal sent; and / or When the working state switching unit (50) is a human tissue recognition device, the human tissue recognition device is connected to a human tissue recognition module built into the control unit (40) to send the working state signal to determine the control module to be called based on the received recognition information; and / or When the working state switching unit (50) is a voice-controlled switch, the voice-controlled switch is connected to a voice-controlled module built into the control unit (40) so as to send the working state signal to determine the control module to be called according to the received voice command; and / or When the working state switching unit (50) is a weight detection element, the working state signal is a weight signal, and the control unit (40) receives the weight signal to select a control module to be called; and / or When the working state switching unit (50) is a temperature detection element, the working state signal is a temperature signal, and the control unit (40) receives the temperature signal to select a control module to be called; and / or When the working state switching unit (50) is a solid-liquid ratio detection element, the working state signal is a solid-liquid ratio signal, and the control unit (40) receives the solid-liquid ratio signal to select a control module to be called; and / or When the working state switching unit (50) is an appliance type detection element, the working state signal is an appliance type signal, and the control unit (40) receives the appliance type signal to select a control module to be called.

34. The operating method according to claim 27, characterized in that: The household appliance further comprises a display screen (60), wherein the display screen (60) is connected to the control unit (40) and is used for displaying a corresponding control interface and / or a cooking status interface and / or a cooking guidance interface on the display screen (60) according to the control program called by the control unit (40).

35. An intelligent control method for household appliances, characterized in that: The household appliance is a household appliance according to any one of claims 1 to 26, and the intelligent control method comprises: Provide a remote control device with a built-in wireless module; A wireless communication module capable of communicating with the remote control device is provided in the household appliance; The wireless module built into the control unit (40) of the household appliance communicates and receives instructions from the remote control device to switch the interface display state of the household appliance and execute subsequent cooking operations accordingly.

36. The intelligent control method according to claim 35, characterized in that: The remote control device is a smart phone.

37. The intelligent control method according to claim 35, characterized in that: A remote server is further provided, the wireless modules built into the remote control device and the control unit (40) are both capable of communicating with the remote server, the remote server stores a plurality of control programs, and the remote control device and the control unit (40) are capable of selectively downloading and calling the control programs; The intelligent control method further comprises: The remote control device downloads the selected control program; The remote control device sends a control command to the household appliance; The home appliance receives the control program and enables the home appliance to perform a corresponding cooking operation.

38. The intelligent control method according to claim 37, characterized in that: The remote control device is also provided with a program adjustment module, and is capable of uploading a new control program to the remote server; the intelligent control method further comprises: The remote control device receives input commands to adjust the control program; The remote control device sends and uploads the adjusted control program to the remote server.

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