EP3617386A1

EP3617386A1 - Interactive projection washing machine and control method

Info

Publication number: EP3617386A1
Application number: EP18790154.1A
Authority: EP
Inventors: Peishi Lv; Qiuying Gao; Yuling Chen
Original assignee: Qingdao Jiaonan Haier Washing Machine Co Ltd
Current assignee: Qingdao Jiaonan Haier Washing Machine Co Ltd
Priority date: 2017-04-26
Filing date: 2018-04-24
Publication date: 2020-03-04
Also published as: JP2020520688A; JP7012094B2; EP3617386A4; CN108797008B; CN108797008A; WO2018196722A1

Abstract

An interactive projection washing machine and a control method thereof, the interactive projection washing machine includes: a machine body (1), wherein the machine body (1) is provided with a door cover (2) for opening/closing, and the door cover (2) is provided with a color changeable display area (4); a projection device, disposed on the machine body (1) and/or the door cover (2), and used for projecting an operation display menu of the washing machine to the color changeable display area (4) for display; a touch operation device (5), disposed on the surface of the color changeable display area (4) and corresponding to the operation display menu; and a control device, electrically connected to the projection device and the touch operation device (5) respectively, wherein after receiving the touch signal of the user output by the touch operation device (5), the control device controls the projection device to perform projection to the color changeable display area (4) to display corresponding content. The washing machine of the present disclosure can perform direct touch operation in the color changeable display area (4), and the color changeable display area (4) is dark in projection, thereby improving display definition, and the color changeable display area (4) can change the color to be light or transparent, which is convenient for the user to observe the internal condition of the washing machine.

Description

TECHNICAL FIELD

The present disclosure belongs to the field of washing machines, and particularly relates to an interactive projection washing machine and a control method thereof.

BACKGROUND

The use of interactive projection display on the existing pulsator washing machines or cylinder washing machines can greatly enhance the user's experience. Currently, the infrared sensing detection method is often used to collect the operation signal of the user. Although this method can conveniently detect the operation signal of the user, this method requires no obstacles in the infrared sensing detection range. If there are obstacles, the detection signal will be affected, and therefore for some devices of which the structures cannot be greatly modified to meet the requirements of infrared sensing detection, the infrared sensing detection method will not be the optimal. If a button mode is adopted, the operability of the display area is lost.
A touch operation device is added in the display area to display the display content on the display area convenient for the user to view and operate, and when the user performs touch operations in the display area, the operation signal of the user is collected and analyzed to determine and respond to the operation behavior of the user. The door cover of the washing machine is an appearance component directly facing towards the user and can be used to set the display area. If the door cover is transparent, the user can observe the internal running state of the washing machine at any time, but the display content in the display area is low in definition, and is difficult to observe at a distance. If the door cover is not transparent, the display content in the display area is high in definition, but the internal state cannot be observed during running. The present disclosure provides a solution capable of improving the definition of the display area on the door cover and observing the internal running state of the washing machine at any time.
In view of this, the present disclosure is provided.

SUMMARY

A technical problem to be solved by the present disclosure is to overcome the deficiencies of the prior art and to provide an interactive projection washing machine. For the interactive projection washing machine of the present disclosure, the user can perform direct touch operation in the color changeable display area, and the color changeable display area is dark in projection, thereby improving the definition of display content, and the color changeable display area can change the color to be light or transparent, which is convenient for the user to observe the internal running state of the washing machine at any time.
To solve the above technical problem, the basic conception of the technical solution adopted by the present disclosure is as follows.
A first object of the present disclosure is to provide an interactive projection washing machine, including: a machine body, wherein the machine body is provided with a door cover for opening/closing, and the door cover is provided with a color changeable display area; a projection device, wherein the projection device is disposed on the machine body and/or the door cover, and projects an operation display menu of the washing machine to the color changeable display area for display;
a touch operation device, wherein the touch operation device is disposed on the surface of the color changeable display area and corresponds to the operation display menu; and a control device, wherein the control device is electrically connected to the projection device and the touch operation device respectively; and after receiving a user touch signal output by the touch operation device, the control device controls the projection device to perform projection to the color changeable display area to display the corresponding content.
In a further solution, the color changeable display area is provided with a color changeable structure, and when the projection device performs projection to the color changeable display area, the color changeable structure displays a dark color to improve the definition of the projection content; and when the running state of the internal washing cylinder of the washing machine needs to be observed, the color changeable structure shows a light color or is transparent.
In a further solution, the color changeable structure is an electrochromic structure electrically connected to the control device, and is disposed on a partial area or a whole area of the door cover, and can receive the projected light of the projection device and display the corresponding projection content.
Preferably, the electrochromic structure is conductive glass or conductive film.
In a further solution, the door cover is formed entirely of the conductive glass, and all the door cover is the color changeable display area; and the touch operation device is disposed on the outer surface of the door cover, and corresponds to the displayed operation display menu.
Preferably, the color changeable display area is provided with a projection trigger button for turning on the projection device.
More preferably, the color changeable display area is also provided with a conduction trigger button for triggering energization of the conductive glass.
In a further solution, the color changeable structure is a photochromic layer, the photochromic layer covers the color changeable display area, and when the projection device performs projection to the color changeable display area, the color of the photochromic layer is deepened; or when the projection device does not perform projection, the color of the photochromic layer becomes light or transparent.
Preferably, the door cover of the washing machine is provided with an enhanced light source which illuminates the photochromic layer and enhances the color changing effect of the photochromic layer.
In a further solution, the touch operation device is touch film or a touch screen disposed on the outer surface of the color changeable display area and corresponding to the displayed operation display menu, to receive an operation signal corresponding to the operation display menu.
Preferably, the area of the touch film is less than or equal to the area of the color changeable display area, thus partially covering or completely covering the color changeable display area.
In a further solution, the door cover is located at the top or the side of the washing machine, the door cover comprises a transparent visible portion and an opaque frame, the color changeable display area is disposed in the transparent visible portion, and when the projection device performs projection, the transparent visible portion is dark.
In a further solution, the projection device and the control device are disposed on the machine body and/or on the opaque frame of the door cover.
Preferably, the washing machine is a pulsator washing machine, the projection device is disposed on a panel base of the washing machine, and the control device is disposed on the opaque frame; alternatively, the projection device and the control device are both disposed on the opaque frame.
Alternatively, the washing machine is a cylinder washing machine, and the projection device and the control device are disposed on the opaque frame and/or a deck plate.
A second object of the present disclosure is to provide a control method of the interactive projection washing machine as described above. The washing machine controls the projection device to project the operation display menu to the color changeable display area for display based on whether the door cover is closed, and controls the color changeable display area to be dark; and then, the washing machine receives the operation signal of the user on the touch operation device, and controls the projection device to adjust the projection to display the corresponding content.
In a further solution, the control method includes the following steps: determining whether the door cover is closed by the washing machine; if the determination result is yes, controlling the projection device to project the operation display menu to the color changeable display area for display; at the same time, controlling the conductive glass to be in a power-off state, and the color changeable display area to be dark. When is the washing machine determines that the user does not operate for a certain period of time, or receives a conduction trigger signal, turning off the projection device, and controlling the conductive glass to be in a power-on state, wherein when the conductive glass is in a transparent state, the state inside the washing cylinder is easily observed; and if the determination result is no, controlling the projection device to be closed or controlling the projection device to perform projection to other positions for display, wherein the other positions comprise at least the panel base and a detergent box.
After adopting the above technical solution, the present disclosure has the following beneficial effects compared with the prior art:

1. In the present disclosure, a touch operation device is installed in the color changeable display area, and by using the projection device and the touch operation device, the operation display menu of the washing machine is displayed to the color changeable display area convenient for the user to view and operate, and when the user operates on the touch operation device of the color changeable display area, the control device detects the operation signal of the user and performs analysis to determine and respond to the operation behavior of the user.
2. The interactive projection washing machine of the present disclosure uses a projection display mode to set the touch operation device in the color changeable display area, while a color changeable structure such as an electrochromic structure is added in the color changeable display area. The content displayed in the color changeable display area corresponds to the corresponding position of the touch operation device, which is convenient for the user to perform accurate and sensitive touch operation. In addition, the electrochromic structure is dark in projection, which can greatly improve the definition of the display content, and can clearly observe the display content in the distance. At the same time, when the user needs to check the state in the cylinder, the electrochromic structure is energized to become transparent, which can provide a good transparent window, so that the user can observe the internal running state of the washing machine at any time.
3. In the present disclosure, there may be a plurality of color changeable display areas, and the surface of each color changeable display area is provided with a touch operation device. When the control device determines that the projection display content is projected to a certain color changeable display area, the corresponding touch operation device is powered on and can receive and respond to the touch operation of the user, and the non-operating touch operation devices are powered off. Therefore, display and operation can be performed at different locations as needed, thus saving energy.

The further detailed description of the specific embodiments in the present disclosure will be described by combining with the following drawings.

BRIEF DESCRIPTION OF THE DRAWINGS

Drawings are a part of the present disclosure, and are intended to provide a further understanding of the present disclosure. Schematic embodiments and descriptions thereof of the present disclosure are intended to explain the present disclosure, but do not constitute a limitation to the present disclosure. Apparently, the drawings described in the following are merely some embodiments. For the persons with ordinary skills in the art, they can obtain other drawings according to these drawings under the premise of not contributing creative works. In the drawings:

FIG. 1 is a schematic structural diagram of a washing machine in which a door cover is located at the top according to the present disclosure;
FIG. 2 is a schematic structural diagram of a washing machine in which a door cover is located at the side according to the present disclosure;
FIG. 3 is a schematic diagram of a top structure of a washing machine of FIG. 2;
FIG. 4 is a schematic diagram showing the principle that a projection device performs projection to a color changeable display area according to the present disclosure; and
FIG. 5 is a schematic diagram of a stereostructure of a control panel-free washing machine.

In the drawings: 1- a machine body, 2- -a door cover, 3 --an electrochromic structure, 4- a color changeable display area, 5- a touch operation device.
It should be noted that the drawings and the text descriptions are not intended to limit the conception scope of the present disclosure in any way, but rather to illustrate the concept of the present disclosure for the skilled in the art by reference to particular embodiments.

DETAILED DESCRIPTION

To clarify objectives, technical solutions and advantages in the embodiments of the present disclosure, the technical solutions in the embodiments of the present disclosure will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present disclosure. The following embodiments are used to illustrate the present disclosure, but do not limit the scope of the present disclosure.
In the description of the present disclosure, it should be noted that the location or position relations indicated by the terms "up", "down", "front", "back", "left", "right", "vertical", "inside" and "outside" are based on the location or position relations shown in the accompanying drawings, which are merely used to facilitate the description of the present disclosure and simplify the description, rather than to indicate or imply that the referred devices or components must have a specific location, be configured in a specific orientation and operation, therefore, it cannot be interpreted as limiting the present disclosure.
In the description of the present disclosure, it should be noted that the terms "installation", "link" and "connection" shall be understood in a broad sense otherwise expressly stated and limited, for example, it can be fixedly connected, or detachable connected, or integrally connected, or mechanically connected, or electrically connected, or directly connected, or indirectly connected through an intermediary. For the persons with ordinary skills in the art, the specific meaning of the above terms in the present disclosure can be understood based on the specific situation.

Embodiment 1

As shown in FIG. 1 to FIG. 5, this embodiment provides an interactive projection washing machine, including: a machine body 1, wherein the machine body 1 is provided with a door cover 2 for opening/closing, and the door cover 2 is provided with a color changeable display area 4; a projection device, wherein the projection device is disposed on the machine body 1 and/or the door cover 2, and projects an operation display menu of the washing machine to the color changeable display area 4 for display; a touch operation device 5, wherein the touch operation device 5 is disposed on the surface of the color changeable display area 4 and corresponds to the operation display menu; and a control device, where the control device is electrically connected to the projection device and the touch operation device 5 respectively; and after receiving a user touch signal output by the touch operation device 5, the control device controls the projection device to perform projection to the color changeable display area 4 to display the corresponding content.
In the washing machine of this embodiment, the machine body 1 is provided with a clothing input opening, and the door cover 2 is movable disposed on the machine body 1 to open and close the clothing input opening. The clothing input opening may be disposed on the top of the machine body 1 or on the side of the machine body 1, that is, the washing machine may be a pulsator washing machine or a cylinder washing machine. The ordinary washing machine has a larger clothing input opening, the corresponding door cover 2 has a larger area, and the door cover 2 directly faces towards the user, so that it is suitable for performing display or setting an operation area on the door cover 2, so as to facilitate the user to observe and/or operate.
The color changeable display area 4 on the door cover 2 can respectively display a darker color and a lighter or be transparent under different conditions, and can be reversibly switched based on conditions. In this way, during projection, the control condition causes the color changeable display area 4 to display a darker color, which can greatly improve the definition of the display content, so that the user can clearly observe the display content at a distance. At the same time, when the user needs to view the inside state of the washing cylinder, the condition can be controlled to make the color changeable display area 4 display a lighter or be transparent, and it is also convenient for the user to observe the internal running state of the washing machine at any time.
In a further solution, the color changeable display area 4 is provided with a color changeable structure, and when the projection device performs projection to the color changeable display area 4, the color changeable structure displays a dark color to improve the definition of the projection content; and when it is necessary to observe the operation state of the internal washing cylinder of the washing machine, the color changeable structure shows a light or is transparent.
The color changeable structure may be an electrochromic structure 3, or a photochromic structure, or a temperature-controlled color-changing structure, or may be implemented by a combination of structures of various color-changing mechanisms. No matter what kind of the color changeable structure, when the projection device performs projection to the color changeable structure for display, the color changeable structure displays a darker color, preferably black, to improve the display definition; and when the projection display is not performed or it is necessary to view the running state in the washing cylinder of the washing machine, a lighter color is displayed or be transparent for observation.
The sensing contact of the touch operation device 5 corresponds to the operation display menu projected in the color changeable display area, so that the user can display the corresponding content when touching the corresponding menu, so as to realize the function of the touch control. The touch operation device 5 may be touch film, a touch screen, or the like that can realize touch control without obstructing the user from viewing the inside state of the cylinder after the color changeable display area has a light or transparent color.
The control device is electrically connected to the projection device and the touch operation device 5, and can receive the touch operation signal of the user in the touch operation device 5. After analyzing and determining the signal, the control device controls the projection device to adjust the display of the corresponding operation menu or display content, which is convenient for the user to perform accurate and sensitive touch operation, and can greatly enhance the user experience.
The washing machine of this solution can eliminate the need of a special control panel/operation panel, and does not need to use other buttons or a display screen. The function of projection display and operation can be realized on the door cover, with stronger visualization and operability, and the internal running state of the washing machine can also be observed.
In a further solution, the touch operation device 5 is touch film or a touch screen disposed on the outer surface of the color changeable display area 4 and corresponding to the displayed operation display menu, to receive an operation signal corresponding to the operation display menu.
The area of the touch film is less than or equal to the area of the color changeable display area 4, thus partially covering or completely covering the color changeable display area 4, and the touch film can correspond to the displayed operation display menu to receive an operation signal corresponding to the operation display menu.
In a further solution, the door cover 2 is located at the top or the side of the washing machine, the door cover 2 comprises a transparent visible portion and an opaque frame, the color changeable display area 4 is disposed in the transparent visible portion, and when the projection device performs projection, the transparent visible portion is dark.
The washing machine of this embodiment may be a top-open washing machine such as a pulsator washing machine, or a side-open washing machine such as a cylinder washing machine. It is possible to use the transparent visual window on the existing door cover 2, or to manufacture the door cover 2 with the transparent visible portion as needed. The material can be saved and the cost can be reduced by disposing the color changeable display area 4 only in the transparent visible portion.
In a further solution, the projection device and the control device are disposed on the machine body 1 and/or on the opaque frame of the door cover 2.
Preferably, the washing machine is a pulsator washing machine, the projection device is disposed on a panel base of the washing machine, and the control device is disposed on the opaque frame; alternatively, the projection device and the control device are disposed on the opaque frame.
Alternatively, the washing machine is a cylinder washing machine, and the projection device and the control device are disposed on the opaque frame and/or a deck plate.
The projection device may be disposed in the washing machine or may be disposed outside the machine, and may perform projection display toward the color changeable display area 4. In this solution, the projection device is preferably disposed on the panel base of the pulsator washing machine, the control device is disposed on the opaque frame of the door cover 2, or both are disposed on the opaque frame, which can shorten the projection distance of the projection device, further enhance the definition of the projection display, form a better display picture, and enhance the user experience.

Control method:

The washing machine controls the projection device to project the operation display menu to the color changeable display area for display based on whether the door cover 2 is closed, and controls the color changeable display area to be dark; and then, the washing machine receives the operation signal of the user on the touch operation device 5, and controls the projection device to adjust the projection to display the corresponding content.
When the washing machine determines that the user does not operate for a certain period of time, the projection device is automatically turned off, and the color changeable display area is changed to be lighter or is transparent.

Embodiment 2

As shown in FIG. 1 to FIG. 5, this embodiment is the further definition of Embodiment 1, an electrochromic structure 3 is disposed in the color changeable display area 4 on the door cover 2 of the washing machine of this embodiment. The color changeable structure is an electrochromic structure 3 electrically connected to the control device, is disposed on a partial area or a whole area of the door cover 2, and can receive the projected light of the projection device and display the corresponding projection content.
As a preferred embodiment, the electrochromic structure 3 of this solution may be conductive glass or conductive film or other implemented devices, and a preferred solution is dark conductive glass. The conductive glass is dark in the power-off state and can become transparent in the power-on state.
The projection device is mounted on the machine body 1 and/or the door cover 2, and the projection opening of which can be toward the electrochromic structure 3 on the door cover 2. When the projection device projects the display content of the washing machine onto the electrochromic structure 3 for display, the power-off state of the electrochromic structure 3 can greatly improve the definition of the display content and the display content can be clearly observed in the distance. At the same time, when the user needs to check the state in the cylinder, the electrochromic structure 3 is energized to become transparent, which can provide a good transparent window, so that the user can observe the internal running state of the washing machine at any time.
In a further solution, the door cover 2 is formed entirely of the conductive glass, and all the door cover 2 is the color changeable display area 4; and the touch operation device 5 is disposed on an outer surface of the door cover 2, and corresponds to the displayed operation display menu.
The door cover 2 is entirely made of dark conductive glass, so that the appearance of the washing machine is beautiful and the texture is low-profile and high-end. The entire door cover 2 can be used as a display area, with a large area, a good display effect, and a good viewing field. The touch film can cover the door cover 2, and the sensing contact of the touch film corresponds to the display content projected on the door cover 2. After the user puts in the clothes and closes the door cover 2, the displayed operation menu can be observed on the door cover 2, and the program is selected as needed.
As a preferred embodiment, a projection trigger button for turning on the projection device is disposed in the color changeable display area 4.
The projection device can be temporarily turned off during the execution of each program by the washing machine, so as to reduce the consumption of energy. When the user needs to view the operation display menu of the washing machine, the projection device is triggered for display. In this solution, a projection trigger button for turning on the projection device may be disposed at a certain position of the touch film or the touch screen in the color changeable display area 4. When the washing machine determines that the user does not operate for a certain period of time, the projection device is automatically turned off. When the user needs to operate or view the display, the projection trigger button is triggered, the control device receives the operation signal, and the projection device is controlled to perform the projection display again.
The projection trigger button is not limited to a manual trigger button, and an automatic trigger sensor can be set. The sensor may be an infrared sensor or a distance sensor. When the sensor senses that the user is within the set distance range, is the sensor automatically feeds back the situation to the control device, and the control device controls the projection device to perform projection display. When the sensor detects that the user is out of the set distance range, is the sensor automatically feeds back the situation to the control device, and the control device controls the projection device to be turned off.
As another preferred implementation, the color changeable display area 4 is also provided with a conduction trigger button for triggering energization of the conductive glass.
The control device can automatically control the energization of the conductive glass after the projection device is turned off, so that the door cover 2 becomes transparent, and it is convenient to observe the running state in the washing cylinder during program execution of the washing machine. In addition, when the projection device performs projection to the color changeable display area for display, if the user needs to check the internal running state of the washing machine, the conduction trigger button can be directly triggered, and the conductive glass is immediately energized to enter a transparent state.
Control method: after the user puts into the clothes, the door cover 2 is closed; whether the door cover is closed is determined by the washing machine; if the determination result is yes, the projection device is controlled to project the operation display menu to the color changeable display area for display; at the same time, the conductive glass is controlled to be in a power-off state, the color changeable display area is dark, and the display content is clearer. When the washing machine determines that the user does not operate for a certain period of time, or receives a conduction trigger signal, the projection device is turned off, and the conductive glass is controlled to be in a power-on state, when the conductive glass is in a transparent state, the state inside the washing cylinder is easily observed; and if the determination result is no, the projection device is controlled to be closed or the projection device is controlled to perform projection to other positions for display; and the other positions comprise at least the panel base and a detergent box.

Embodiment 3

This embodiment is the further definition to Embodiment 1. There are a plurality of color changeable display areas 4 on the door cover 2 of this embodiment, and the surface of each color changeable display area 4 is provided with a touch operation device 5. When the control device determines that the projection device performs projection to a certain color changeable display area 4, the corresponding touch operation device 5 is energized by the control device to make it in an operating state and receive and respond to the touch operation of the user.
When the projection device performs projection to the color changeable display area 4 of a certain position, the control device controls the conductive film or the conductive glass of the position to be powered off, thereby enhancing the display definition; and simultaneously, the conductive glass or the conductive film is controlled to be energized at other positions to become transparent, so as to observe the running situation inside the cylinder.

Embodiment 4

This embodiment is the further definition of Embodiment 1. The color changeable display area 4 on the door cover 2 of this embodiment is provided with a color changeable structure, the color changeable structure is a photochromic layer, the photochromic layer covers the color changeable display area 4, and when the projection device performs projection to the color changeable display area 4, the color of the photochromic layer is deepened; and when the projection device does not perform projection, the color of the photochromic layer becomes light or the photochromic layer becomes transparent.
The photochromic layer is made of a photochromic material, which has a lighter or transparent color when there is no light or the light is weak, and has a darker color when irradiated with strong light. The photochromic layer can be coated and adhered to the transparent area of the door cover 2, that is, the color changeable display area 4 is formed. When the projection device is turned on and performs projection toward the door cover 2, the strong light irradiation of the projection device causes the photosensitive material to be darkened, which can enhance the display definition. When the projection device is turned off, the strong light disappears, and the color changeable display area gradually shows a lighter or transparent color, which is convenient for observing the internal state.
As another preferred implementation, the door cover 2 of the washing machine is provided with an enhanced light source which illuminates the photochromic layer and enhances the color changing effect of the photochromic layer.
The enhanced light source may be disposed on the door cover 2 or on the inner panel base, and illuminates the photochromic layer. The closing and opening of the enhanced light source is consistent with that of the projection device, so that when the projection is turned on, the photochromic layer is changed to a darker color, and the display definition is enhanced. When there is no projection, the photochromic layer has a lighter or transparent color.
The control method includes the following steps: whether the door cover 2 is closed is determined by the washing machine; if the determination result is yes, the projection device is controlled to project the operation display menu to the color changeable display area for display; at the same time, the enhanced light source is controlled to be turned on, and the color changeable display area becomes dark to enhance the display definition.
When the washing machine determines that the user does not operate for a certain period of time, the projection device is turned off, and the enhanced light source is controlled to be turned off, when the color changeable display area is in a transparent state, the state inside the washing cylinder is easily observed; and if the determination result is no, the projection device is controlled to be closed or the projection device is controlled to perform projection to other positions for display; and the other positions comprise at least the panel base and a detergent box.
The solutions of the above embodiments may be implemented separately or in combination. The above descriptions are only preferred embodiments of the present disclosure, and are not intended to limit the present disclosure in form. Although the present disclosure has been disclosed in the above preferred embodiments, it is not intended to limit the present disclosure. Those skilled in the art can make little changes or modifications as would equal to equivalent embodiments by using the above indicated technical content without deviating from the technical scope of the present disclosure. But, for the content without deviating from the technical solution of the present disclosure, any simple changes, equivalent variations and modifications made to the above embodiments based on the technical essence of the present disclosure are still within the scope of the present disclosure.

Claims

An interactive projection washing machine, characterized in that, the washing machine comprises:
a machine body, wherein the machine body is provided with a door cover for opening/closing, and the door cover is provided with a color changeable display area;

a projection device, wherein the projection device is disposed on the machine body and/or the door cover, and projects an operation display menu of the washing machine to the color changeable display area for display;

a touch operation device, wherein the touch operation device is disposed on a surface of the color changeable display area and corresponds to the operation display menu; and

a control device, wherein the control device is electrically connected with the projection device and the touch operation device respectively; and after receiving a user touch signal output by the touch operation device, the control device controls the projection device to project corresponding a projection content to the color changeable display area to displays.
The interactive projection washing machine according to claim 1, characterized in that the color changeable display area is provided with a color changeable structure, and when the projection device performs projection to the color changeable display area, the color changeable structure displays a dark color to improve a definition of the projection content; and when a running state of an washing cylinder in the washing machine is observed, the color changeable structure displays a light color or becomes transparent.
The interactive projection washing machine according to claim 1 or 2, characterized in that the color changeable structure is an electrochromic structure electrically connected with the control device, and is disposed on a partial area or a whole area of the door cover, and the color changeable structure receives a projected light of the projection device and displays the projection content; and
preferably, the electrochromic structure is a conductive glass or a conductive film.
The interactive projection washing machine according to claim 3, characterized in that the door cover is formed entirely of the conductive glass, and the whole area of the door cover is the color changeable display area; the touch operation device is disposed on an outer surface of the door cover, and corresponds to the operation display menu;
preferably, the color changeable display area is provided with a projection trigger button for turning on the projection device; and
more preferably, the color changeable display area is also provided with a conduction trigger button for triggering energization of the conductive glass.
The interactive projection washing machine according to claim 1 or 2, characterized in that the color changeable structure is a photochromic layer, the photochromic layer covers the color changeable display area,
when the projection device performs projection to the color changeable display area, a color of the photochromic layer is deepened; and
when the projection device does not perform projection, the color of the photochromic layer becomes lighter or transparent;
preferably, the door cover of the washing machine is provided with an enhanced light source to illuminate the photochromic layer and to enhance the color changing effect of the photochromic layer.
The interactive projection washing machine according to any one of claims 1 to 5, characterized in that the touch operation device is a touch film or a touch screen disposed on an outer surface of the color changeable display area;
the touch operation device corresponds to the operation display menu displayed and receives an operation signal corresponding to the operation display menu;
preferably, an area of the touch film is less than or equal to an area of the color changeable display area for partially covering or completely covering the color changeable display area.
The interactive projection washing machine according to any one of claims 1 to 6, characterized in that the door cover is located at a top or a side of the washing machine, the door cover comprises a transparent visible portion and an opaque frame, the color changeable display area is disposed on the transparent visible portion, and when the projection device performs projection, the transparent visible portion is dark.
The interactive projection washing machine according to claim 7, characterized in that the projection device and the control device are disposed on the machine body and/or on the opaque frame of the door cover;
preferably, the washing machine is a pulsator washing machine, the projection device is disposed on a panel base of the washing machine, and the control device is disposed on the opaque frame; alternatively, the projection device and the control device are both disposed on the opaque frame; and
alternatively, the washing machine is a cylinder washing machine, and the projection device and the control device are disposed on the opaque frame and/or a deck plate.
A control method of the interactive projection washing machine according to any one of claims 1 to 8, characterized in that the washing machine controls the projection device to project the operation display menu to the color changeable display area for display based on whether the door cover is closed, and controls the color changeable display area to be dark; and then, the washing machine receives the operation signal from the touch operation device operated by user, and controls the projection device to adjust the projection to display the projection content.
The control method of the interactive projection washing machine according to claim 9, characterized in that the control method comprises the following steps:
the washing machine determining whether the door cover is closed;

if the door cover is determined to be closed, controlling the projection device to project the operation display menu to the color changeable display area for display; at the same time, controlling the conductive glass to be in a power-off state, and the color changeable display area to be dark; and controlling the projection device to adjust and display the corresponding content based on the touch operation by the user;

when the washing machine determines that the user does not operate for a certain period of time or receives a conduction trigger signal, turning off the projection device, and controlling the conductive glass to be in a power-on state, so that the conductive glass is in a transparent state and the running state inside the washing cylinder is easily observed; and

if the door cover is determined to be open, controlling the projection device to be closed or controlling the projection device to perform projection to other positions for display, wherein the other positions comprise at least the panel base and a detergent box.