Refrigerator

Abstract

The invention provides a refrigerator which comprises a storage chamber and a door for sealing the storage chamber, an infrared device, a camera device and a display device are arranged in the storage chamber, and the display device projects images into the air to form an image projection surface; the infrared device emits infrared rays; the camera device captures the position of an object irradiated by the infrared rays; and according to detection of the camera device, interaction is generated after the position of the object is in contact with the image projection surface. The image projection surface is formed by projecting the image into the air, then the contact between the object and the image projection surface is detected to realize interaction, the image projection surface has no entity in the air, on one hand, the internal space of the refrigerator is not occupied, on the other hand, water drops are not condensed on the image projection surface, and the detection and touch control of a user are not influenced. The position of the object is captured through the infrared device and the camera device, and then the contact point of the object relative to the image projection surface is judged, so that the image projection surface is controlled.

Description

TECHNICAL FIELD

[0001] The present application relates to the field of refrigerators, in particular to a refrigerator. BACKGROUND

[0002] For full-embedded and customized refrigerators, if the screen is arranged outside the refrigerator, the consistency of the refrigerator exterior and the overall decoration will be damaged, so it is not desirable to see the screen from the outside during the design process. However, when the screen is built-in inside the refrigerator, due to the relatively high temperature outside the refrigerator and the relatively low temperature inside the refrigerator, water droplets will condense on the screen after the refrigerator is opened. When the user directly touches the screen to control it, the touch function will be affected by the water vapor, and the screen may also be affected by the environment and oil stains. Furthermore, the screen built-in inside the refrigerator is further limited by the space inside the refrigerator. For smaller screens, it is more difficult to observe and control the condensed water droplets, and for larger screens, more water droplets will condense and occupy the use space. SUMMARY

[0003] The present application provides a refrigerator which can display and interact information without setting a physical screen.

[0004] A refrigerator, comprising a storage chamber and a cabinet door for enclosing the storage chamber, wherein the storage chamber is provided with an infrared device, a camera device, a display device and a processing unit, the display device projects an image to the air to form an image projection surface; the infrared device emits infrared rays; the camera device captures an object irradiated by the infrared rays, the processing unit is connected with the camera device and obtains first spatial information of the object; the processing unit is connected with the display device and obtains second spatial information of the image projection surface, the processing unit can determine whether the image projection surface and the object overlap according to the first spatial information and the second spatial information, and send a control instruction for controlling the operation of the refrigerator when the object and the image projection surface overlap.

[0005] Further, the camera device and the infrared device are connected with a three-dimensional circuit board assembly, the three-dimensional circuit board assembly comprises a first rigid circuit board, a second rigid circuit board and a first flexible circuit board, the camera device is connected with the first rigid circuit board, the infrared device is connected with the second rigid circuit board, and the two ends of the first flexible circuit board are connected with the first rigid circuit board and the second rigid circuit board respectively.

[0006] Further, the first flexible circuit board is folded in a U shape, so that the second rigid circuit board is located above the first rigid circuit board.

[0007] Further, the camera device comprises a camera array composed of a plurality of cameras.

[0008] Further, the light-in surface of the camera and the light-out surface of the infrared device are flush.

[0009] Further, the upper edge of the storage chamber is beveled, and the infrared device, the camera and the display device are arranged on the beveled surface.

[0010] Further, the display device comprises a display module and a microstructure transparent panel, and the light emitted by the display module is deflected by the microstructure transparent panel and forms an image projection surface in the air.

[0011] Further, the microstructure transparent panel is provided with a rotating shaft and an adjusting knob, the rotating shaft connects the bottom of the display module and the bottom of the microstructure transparent panel, the microstructure transparent panel is rotatably connected with the display module about the rotating shaft, and the adjusting knob drives the microstructure transparent panel to connect about the rotating shaft.

[0012] Further, the infrared device, the camera and the display device are associated with the door, and the infrared device, the camera and the display device start working when the door is opened and stop working when the door is closed.

[0013] Further, the camera is provided with a data interface, and the display device is also provided with a data interface.

[0014] The present application projects an image to form an image projection surface in the air, and then detects the contact between the object and the image projection surface to realize the interaction, the image projection surface has no entity in the air, on the one hand, it does not occupy the space inside the refrigerator, on the other hand, the image projection surface will not condense water droplets, and will not affect the detection and touch control of the user.

[0015] The present application captures the position of the object by the infrared device and the camera, and then judges the contact point of the object relative to the image projection surface to realize the control of the image projection surface. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 is the flow chart of the interaction between the gesture and the projection.

[0017] Figure 2 is the perspective view of the refrigerator.

[0018] Figure 3 is Figure 2 is the enlarged view of the display device, the infrared device and the camera part in

[0019] Figure 4 is the schematic view of the refrigerator.

[0020] Figure 5 yes Figure 4 Enlarged view of the display device and image projection surface.

[0021] Figure 6 It is a schematic diagram of a three-dimensional circuit board assembly.

[0022] Explanation of the accompanying drawings: 1. Refrigerator; 11. Storage compartment; 12. Door; 13. Slanted surface; 2. Infrared device; 3. Camera device; 4. Display device; 41. Display module; 42. Microstructured transparent flat panel; 43. Image projection surface; 5. Three-dimensional circuit board assembly; 51. First rigid circuit board; 52. Second rigid circuit board; 53. First flexible circuit board. DETAILED DESCRIPTION

[0023] Exemplary embodiments will be described in detail herein, examples of which are illustrated in the accompanying drawings. When the following description refers to the drawings, identical numbers in different figures represent identical or similar elements unless otherwise indicated. The embodiments described in the following exemplary embodiments are not intended to represent all embodiments consistent with the present application. Rather, they are merely examples of devices consistent with certain aspects of the present application, as detailed in the appended claims.

[0024] The terms used in this application are for the purpose of describing specific embodiments only and are not intended to limit this application. Unless otherwise defined, technical or scientific terms used in this application should have the ordinary meaning understood by a person of ordinary skill in the art to which this application belongs. The terms "first," "second," and similar words used in this specification and claims do not denote any order, quantity, or importance, but are simply used to distinguish different components. Similarly, the terms "a" or "an" and similar words do not denote a limitation of quantity, but rather denote the presence of at least one. The terms "plurality" or "several" mean two or more. Unless otherwise indicated, the terms "front," "rear," "lower," and / or "upper" and similar words are for convenience only and are not intended to limit to a single position or spatial orientation. The terms "include," "comprising," and similar words mean that the elements or objects preceding the term "include" or "comprising" include the elements or objects listed after the term and their equivalents, and do not exclude other elements or objects. The terms "connected," "connected," and similar words are not limited to physical or mechanical connections and can include electrical connections, whether direct or indirect. As used in this specification and the appended claims, the singular forms "a," "an," "said," and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It should also be understood that the term "and / or" as used herein refers to and encompasses any and all possible combinations of one or more of the associated listed items.

[0025] As shown in Figure 1 a gesture and projection interaction mode is shown, which comprises:

[0026] Step S1: the display device 4 projects an image to form an image projection plane 43 in the air;

[0027] Step S2: the infrared device 2 emits infrared rays;

[0028] Step S3: the camera 3 captures the position of the object irradiated by the infrared rays;

[0029] Step S4: according to the detection of the camera 3, when the position of the object and the image projection plane 43 contact, an interaction is generated.

[0030] In step S4, if the position of the object and the image projection plane 43 do not contact or overlap, no interaction is generated.

[0031] Further, the object includes a finger, a stylus, and any infrared ray markable object.

[0032] Further, the information is processed by using a processing unit, which receives the first spatial information of the object irradiated by the infrared rays captured by the camera 3, and the second spatial information of the image projection plane 43, i.e. determines the positions of the object and the image projection plane 43 in space, and when the processing unit determines that the object and the image projection plane 43 overlap, a control instruction for controlling the operation of the refrigerator is issued.

[0033] Preferably, the control instruction for controlling the operation of the refrigerator includes feeding back information to the display device 4, and then changing the content of the image projection plane 43.

[0034] Preferably, the image projection plane 43 is provided with temperature rising virtual keys, temperature falling virtual keys, humidity adjusting keys and other common control keys of the refrigerator, which correspond to the temperature, humidity and other parameters of the refrigerator.

[0035] Further, the infrared device 2 is a device with the function of emitting infrared rays, which can generate infrared beams or infrared signals and transmit them to a specific target area. These infrared rays can be the visible part of infrared light or infrared radiation that cannot be seen by the human eye.

[0036] In a preferred embodiment, the infrared device 2 is composed of an infrared emitter component, which can generate infrared beams or signals and emit them. These emitters can use different technologies, such as infrared diodes (IRLED) or infrared laser diodes (IR Laser Diode), for emitting infrared light.

[0037] Further, the camera 3 is used to receive and process infrared rays. In a preferred embodiment, the camera 3 comprises an infrared sensor or infrared camera, which is capable of sensing and recording infrared images or videos. These images or videos can be used for analysis, monitoring, scanning, etc.

[0038] Further, the camera 3 is used to receive and process infrared rays and other light rays, and convert them into visualized images or videos. The camera 3 comprises the following components: an infrared sensor, an optical system, an image processing unit, and an output interface, among which the key part in the camera 3 is the infrared sensor, also known as the infrared camera, which is capable of sensing and receiving infrared rays and converting them into electrical signals. The type and characteristics of the infrared sensor can be an infrared array sensor, a thermal imager, etc. according to the requirements. The optical system is used to focus and guide the infrared light to the infrared sensor. The optical system comprises lenses, filters, and other optical elements to ensure that the infrared rays can be accurately transmitted to the sensor.

[0039] The camera 3 is equipped with an image processing unit or chip, which is used to receive the electrical signals output from the infrared sensor and process and convert them. These processing procedures can include signal amplification, noise filtering, image enhancement, color processing, etc. to generate clearer and visualized images or videos.

[0040] The camera 3 also has a data interface to transmit the processed images or videos to a display device or other system for input and output of audio-visual information. Specifically, the data interface can be an output interface including a digital interface such as HDMI, USB, or an analog interface such as a video output port, etc.

[0041] The display device 4 also has a data interface to allow the user to input the content to be projected through a transmission line connection.

[0042] In a preferred embodiment, the display device 4 projects images into the air to form an image projection surface 43 in the form of neon lights and laser projection, using high-brightness neon lights or lasers to form images in the air, which can create an impressive visual effect.

[0043] In another preferred embodiment, the display device 4 projects images into the air to form an image projection surface 43 in the form of light beam projection, using laser beams or other high-energy light sources to project images directly into the air.

[0044] In a preferred embodiment, when the display device 4 projects an image to form an image projection plane 43 in the air, the position of the image projection plane 43 in space can be known according to the parameters of the display device 4 or experimental data, and then in cooperation with the position of the object irradiated by the infrared rays captured by the camera 3, it can be identified whether the object contacts the image projection plane 43 and the position of the contact with the image projection plane 43, and further the interaction is realized according to the position of the object contacting the image projection plane 43, and the picture projected by the image projection plane 43 changes according to the interaction information.

[0045] Specifically, the processing unit is configured to perform operations including at least the following functions: determining the position of the image projection plane 43 in space according to the deflection angle of the image projection plane 43, receiving the information collected by the camera 3, and calculating the position of the detected object in space, combining the position of the object in space and the position of the image projection plane 43 in space, and judging whether the object contacts the image projection plane 43 and the position of the contact point on the picture of the image projection plane 43, and emitting instructions according to the position of the object contacting the image projection plane 43 to make the image projection plane 43 change.

[0046] In another preferred embodiment, the position of the image projection plane 43 is calibrated by the camera 3, which directly captures the position of the object contacting the camera 3 as a calibration of the operation result of the processing unit, further confirms the position of the object contacting the image projection plane 43, and feeds back to the display device 4 to realize the interaction, and the picture projected by the image projection plane 43 changes according to the interaction information.

[0047] Further, the image projection plane 43 can display the food materials of the refrigerator 1 and update the quantity and shelf life of the food materials and the like.

[0048] Preferably, the food materials of the refrigerator 1 and the quantity of the food materials are collected by the camera 3; preferably, the food materials of the refrigerator 1, the quantity of the food materials, and the shelf life are input by the user.

[0049] More preferably, the identification storing information such as two-dimensional code or bar code of the food material can be scanned, and when the user puts the food material into the refrigerator 1, the camera 3 scans the identification, and further obtains the corresponding food material information such as: date of appearance, shelf life, manufacturer, quantity of food material, food energy, etc.

[0050] Further, in the process of inputting information, the image projection plane 43 displays the input content.

[0051] Further, the camera 3 uses a wide-angle lens and a high-resolution sensor to capture more subtle gestures, and can accurately identify even in insufficient light conditions.

[0052] Preferably, the image projection surface 43 can also display a menu generated based on the entered food information of the refrigerator 1. Specifically, the entered food information is compared with the required food materials of online recipes, and a menu that can be made is selected and displayed on the image projection surface 43, including the required food materials and cooking methods.

[0053] Preferably, the image projection surface 43 can also display a shopping list and reminders. Users can create a shopping list using the image projection surface 43 of the refrigerator 1 and display it on the image projection surface 43. In this way, when the user needs to buy food or other items, the list can be easily viewed. The image projection surface 43 can also display reminders such as birthdays, meetings or other important events.

[0054] Preferably, the image projection surface 43 can also display weather and time. The image projection surface 43 of the refrigerator 1 can display the current weather conditions and forecasts, allowing users to understand the weather conditions today and in the coming days. In addition, the current time and date can also be displayed on the image projection surface 43, providing real-time information.

[0055] Preferably, the image projection surface 43 can also display a family calendar and activity schedule. Through the image projection surface 43 of the refrigerator 1, users can view the schedules and activity plans of family members. This can coordinate the schedules of family members and ensure that everyone knows the upcoming activities and events.

[0056] Preferably, the image projection surface 43 can also display notes and messages. The image projection surface 43 of the refrigerator 1 can be used as a family message board, allowing family members to leave messages and communicate with each other. Users can write reminders, leave messages for family members or record important information.

[0057] Preferably, the image projection surface 43 can also display news and entertainment. The image projection surface 43 can display the latest news headlines, sports scores and other entertainment content, allowing users to stay up-to-date with the latest information at any time.

[0058] Preferably, the image projection surface 43 can also display health and fitness information. The image projection surface 43 of the refrigerator 1 can display healthy recipes, exercise suggestions and health tips to help users maintain a healthy lifestyle.

[0059] Preferably, the image projection surface 43 can also display a family photo album. The image projection surface 43 of the refrigerator 1 can display family photos and memories. Users can create a digital photo album to showcase family members, travel photos, special moments, etc., allowing everyone to review beautiful memories.

[0060] Preferably, the image projection surface 43 can also display health monitoring. Some smart refrigerators 1 are equipped with health monitoring functions and can display health indicators and data. Users can view body indicators such as weight, heart rate, blood pressure, etc. through the image projection surface 43 to help them manage their health.

[0061] Preferably, the image projection surface 43 can also display social media updates. The refrigerator 1 image projection surface 43 can be connected to a social media account to display the latest circle of friends updates, tweets, or photos on social media. In this way, users can always know the latest news of friends and family.

[0062] Preferably, the image projection surface 43 can also display educational and learning content. The refrigerator 1 image projection surface 43 can provide educational and learning resources. Users can access online courses, academic lectures, or learning applications to improve their knowledge and skills.

[0063] Preferably, the image projection surface 43 can also display home security monitoring. Some smart refrigerators 1 are equipped with security monitoring functions and can display real-time images of home security cameras. Users can view the security status of the home on the image projection surface 43 to ensure the safety of family and property.

[0064] In addition, preferably, the image projection surface 43 can also interact with voice assistants, or voice assistants can be integrated into the refrigerator 1 to achieve intelligent control and voice interaction. Users can control home devices, query information, and perform tasks through voice commands.

[0065] Furthermore, the image projection surface 43 of the refrigerator 1 can display various different content according to individual needs and technical capabilities.

[0066] The image projection surface 43 provides a more natural interaction experience. Users can intuitively interact with the image projection surface 43 using gestures, just like operating real objects.

[0067] Further, the use of the image projection surface 43 reduces the dependence on physical buttons and controls. The image projection surface 43 and gesture interaction eliminate the need for physical buttons and controls, providing a more elegant appearance for the device.

[0068] Furthermore, the combination of the infrared device 2 and the camera device 3 is superior to a separate infrared transceiver and a separate camera. After the infrared device 2 emits infrared rays, the camera device 3 can capture spatial depth information by collecting data. Since the receiving and transmitting positions of the infrared rays are different, the spatial positional relationship can be calculated based on the received information. Compared with a separate infrared transceiver, the combination of the infrared device 2 and the camera device 3 is more clear; compared with a separate camera, spatial stereoscopic information can be obtained.

[0069] Further, the light entrance surface of the camera 3 and the light exit surface of the infrared device 2 are flush, specifically, the light entrance surface is the area that receives infrared radiation from the target, which is covered by the camera lens in the camera 3, focusing the infrared light onto the photosensitive element; the light exit surface is the area that emits infrared laser, which is composed of laser diodes or other light sources in the infrared device.

[0070] The flush of the light entrance surface of the camera 3 and the light exit surface of the infrared device 2 can improve the accuracy of gesture recognition, and the flush of the light entrance surface of the camera and the light exit surface of the infrared device ensures accurate detection of gestures and objects.

[0071] Regarding the capture of stereoscopic information of the camera 3, in a preferred embodiment, as shown in Figure 6 the camera 3 and the infrared device 2 are both connected to a stereoscopic circuit board assembly 5, which includes a first rigid circuit board 51, a first flexible circuit board 53, and a second rigid circuit board 52, the camera 3 is connected to the first rigid circuit board 51, the infrared device 2 is connected to the second rigid circuit board 52, and the two ends of the first flexible circuit board 53 are connected to the first rigid circuit board 51 and the second rigid circuit board 52 respectively.

[0072] Further, the first flexible circuit board 53 is folded in a U shape, so that the second rigid circuit board 52 is located above the first rigid circuit board 51.

[0073] The first flexible circuit board 53 enhances the flexibility of the device, the flexible cable can be bent and folded, so that the device can be installed on surfaces of various shapes and sizes, and the shock resistance of the device is improved, the flexible cable can absorb vibration and impact, protecting the device from damage, while simplifying the installation of the device, the flexible cable can easily pass through narrow spaces and openings, making the installation of the device more convenient.

[0074] Further, the stereoscopic circuit board assembly 5 is internally provided with an image processing chip, which calculates the spatial information according to the angle of the transmission and reception distance of the infrared rays.

[0075] The use of the stereoscopic circuit board assembly 5 improves the durability and reliability of the device, the integrated design integrates all necessary components into a module, reducing the possibility of loosening or damage, simplifying the assembly and maintenance of the device, and the pre-assembled module can be easily installed into the device, thereby shortening the production time and reducing the maintenance cost; optimizes the space utilization, the compact module design allows the device to be installed in a small space, making it suitable for various application scenarios.

[0076] In another preferred embodiment, the camera 3 includes a camera array composed of multiple cameras. By multiple cameras, multiple perspectives are obtained through multi-point shooting while collecting infrared data, and spatial information is calculated. The spatial information obtained by receiving infrared rays and the spatial information obtained by multi-point shooting are combined to obtain more accurate spatial information.

[0077] In addition, the camera array can also expand the field of view of the device, multiple cameras can cover a wider area, thereby reducing blind spots and improving the accuracy of gesture recognition; enhance the depth perception ability of the device, through triangulation, multiple cameras can determine the distance of the object, thereby realizing more accurate gesture interaction; improve the anti-interference ability of the device, multiple cameras can capture images from different angles, thereby reducing the influence of environmental light and reflection.

[0078] As shown in Figure 2 , a refrigerator 1 is shown, which includes a storage compartment 11 and a box door 12 enclosing the storage compartment 11, wherein the infrared device 2, the camera 3 and the display device 4 are all arranged inside the storage compartment 11, solving the problem of water vapor generated after the built-in screen of the refrigerator 1 is turned on. By projecting an image into the air to form an image projection surface 43, and then detecting the contact between the object and the image projection surface 43 to realize interaction, the image projection surface 43 has no entity in the air, on the one hand, it does not occupy the space inside the refrigerator 1, on the other hand, the image projection surface 43 will not condense water droplets, which does not affect the detection and touch of the user.

[0079] Further, using this interaction method on the refrigerator allows users to easily access recipes, shopping lists and other information without having to leave the refrigerator. The improved user experience interaction method provides users with new and innovative ways to interact with the refrigerator, thereby improving the overall user experience.

[0080] As shown in Figure 3 , the upper edge of the storage compartment 11 is a slope 13, and the infrared device 2, the camera 3 and the display device 4 are all arranged on the slope 13. The slope 13 can increase the angle of the display device 4, and the slope 13 and the box door 12 fit together, also saving space for arranging the infrared device 2, the camera 3 and the display device 4.

[0081] In addition, the infrared device 2, the camera 3 and the display device 4 are all arranged on the slope 13, which optimizes the image projection effect. The slope of the upper edge of the storage compartment provides the best installation position for the projector, ensuring that the image is clear and sharp. The slope 13 also enhances the accuracy of gesture recognition, as the slope helps to reduce the blocking of gestures and objects, improving the accuracy of gesture recognition. The slope 13 also improves the durability and reliability of the device, as mounting the device on the slope can prevent the accumulation of dust and debris, thereby prolonging the service life of the device.

[0082] As shown in Figures 4-5 The display device 4 includes a display module 41 and a microstructure transparent panel 42, the light emitted by the display module 41 is deflected by the microstructure transparent panel 42 and forms an image projection plane 43 in the air.

[0083] The microstructure transparent panel 42 improves the clarity and brightness of the image, the microstructure transparent panel 42 deflects the light emitted by the display module to form a clear and sharp image, and good visibility can be obtained even in strong ambient light. The microstructure transparent panel 42 enhances the depth of field of the image, the microstructure transparent panel 42 can adjust the focal length of the image, and the depth of field of the image can be optimized as needed. The microstructure transparent panel 42 also widens the application scenarios of the image, and the microstructure transparent panel 42 can also be projected on the surface of various objects.

[0084] Specifically, the image projection plane 43 is symmetrical to the display module 41 with the microstructure transparent panel 42 as the reference, further, the microstructure transparent panel 42 is provided with a rotating shaft and an adjusting knob, the rotating shaft connects the bottom of the display module 41 and the bottom of the microstructure transparent panel 42, the microstructure transparent panel 42 is rotatably connected to the display module 41 with the rotating shaft as the axis, the adjusting knob drives the microstructure transparent panel 42 to connect with the rotating shaft, the angle of the microstructure transparent panel 42 relative to the display module 41 can be adjusted by the adjusting knob, and the angle and position of the image projection plane 43 can be changed to adapt to users with different heights and viewing angles.

[0085] Further, since the bottom of the display module 41 abuts against the bottom of the microstructure transparent panel 42, the bottom position of the image projection plane 43 is also at the bottom of the display module 41, and the adjusting knob actually adjusts the angle of the image projection plane 43 relative to the microstructure transparent panel 42 and the height of the upper end of the image projection plane 43.

[0086] The adjusting knob provides the adjustability of the image position, the rotating shaft and the adjusting knob allow the user to adjust the angle of the microstructure transparent panel as needed to optimize the position and clarity of the image projection. Further, the adjusting knob improves the user experience, and the user can easily adjust the image according to his own preferences and needs to obtain the best viewing experience. The setting of the adjusting knob also enhances the flexibility of the device, and the adjustable image position makes the device adaptable to different installation environments and use scenarios.

[0087] In a preferred embodiment, the microstructure transparent panel 42 is a transparent glass body.

[0088] Further, the infrared device 2, the camera device 3 and the display device 4 are all associated with the box door 12, and the infrared device 2, the camera device 3 and the display device 4 start to work when the box door 12 is opened, and stop to work when the box door 12 is closed.

[0089] The infrared device 2, the camera device 3 and the display device 4 are all associated with the box door 12, which saves energy, and the interactive mode will automatically close when the refrigerator door is closed, thereby saving energy; and prolongs the service life of the equipment, and the automatic on-off function can prevent the equipment from running for a long time, thereby prolonging the service life of the equipment. It also improves the safety of the equipment, and the interactive mode will automatically close when the refrigerator door is closed, preventing others from using the equipment without authorization.

[0090] The above is only the preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as the above preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content without departing from the scope of the technical solution of the present application, and any simple modification, equivalent change and modification of the above embodiment made according to the technical essence of the present application shall still fall within the scope of the technical solution of the present application.

Claims

1. A refrigerator, said refrigerator (1) comprising a storage compartment (11) and a cabinet door (12) closing said storage compartment (11), characterized in that, The storage chamber (11) is provided with an infrared device (2), a camera device (3), a display device (4) and a processing unit, the display device (4) projects an image to the air to form an image projection plane (43); the infrared device (2) emits infrared rays; the camera device (3) captures the object irradiated by the infrared rays, the processing unit is connected with the camera device (3) and obtains the first spatial information of the object; the processing unit is connected with the display device (4) and obtains the second spatial information of the image projection plane (43), the processing unit can judge whether the image projection plane (43) and the object overlap according to the first spatial information and the second spatial information, and when the object and the image projection plane (43) overlap, a control instruction for controlling the operation of the refrigerator is sent.

2. The refrigerator according to claim 1, characterized in that, The camera device (3) and the infrared device (2) are connected with a three-dimensional circuit board assembly (5), the three-dimensional circuit board assembly (5) includes a first hard circuit board (51), a second hard circuit board (52) and a first flexible circuit board (53), the camera device (3) is connected with the first hard circuit board (51), the infrared device (2) is connected with the second hard circuit board (52), and the two ends of the first flexible circuit board (53) are connected with the first hard circuit board (51) and the second hard circuit board (52) respectively.

3. The refrigerator according to claim 2, characterized in that, The first flexible circuit board (53) is folded in a U shape, so that the second hard circuit board (52) is located above the first hard circuit board (51).

4. The refrigerator according to claim 1, characterized in that, The camera device (3) includes a camera array composed of multiple cameras.

5. The refrigerator according to claim 1, characterized in that, The light entrance surface of the camera device (3) and the light exit surface of the infrared device (2) are flush.

6. The refrigerator according to claim 1, characterized in that, The upper edge of the storage chamber (11) is a slope (13), and the infrared device (2), the camera device (3) and the display device (4) are arranged on the slope (13).

7. The refrigerator according to claim 1, characterized in that, The display device (4) includes a display module (41) and a microstructure transparent flat plate (42), the light emitted by the display module (41) is deflected by the microstructure transparent flat plate (42) and forms an image projection plane (43) in the air.

8. The refrigerator according to claim 7, characterized in that, A rotating shaft and an adjusting button are arranged on the microstructure transparent flat plate (42), the rotating shaft connects the bottom of the display module (41) and the bottom of the microstructure transparent flat plate (42), the microstructure transparent flat plate (42) is rotatably connected with the display module (41) with the rotating shaft as the axis, and the adjusting button drives the microstructure transparent flat plate (42) to be connected with the rotating shaft.

9. The refrigerator according to claim 1, characterized in that, The infrared device (2), the camera device (3) and the display device (4) are associated with the box door (12), the infrared device (2), the camera device (3) and the display device (4) start working when the box door (12) is opened, and the infrared device (2), the camera device (3) and the display device (4) stop working when the box door (12) is closed.

10. The refrigerator according to claim 1, characterized in that, The camera (3) is provided with a data interface, and the display device (4) is also provided with a data interface.

Images