Projection device for household electrical appliance and refrigerator
By designing built-in light source components and multiple reflectors in the refrigerator, the problem of small projection range is solved, the projection range is expanded and cost reduction is achieved, and the aesthetics and user experience of the refrigerator are improved.
Patent Information
- Application Number
- CN202410144743.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-31
- Publication Date
- 2025-08-01
AI Technical Summary
The existing projection device has limited installation position on the refrigerator, and the projection range is small, so it cannot be effectively projected to the front end of the shelf and the front panel of the drawer inside the refrigerator, and the projection area is small.
Using the design of a built-in light source assembly and multiple reflectors in the housing, the projected light is reflected to different display areas of the refrigerator through the first reflector and the second reflector respectively, increasing the projection range, and optimizing heat dissipation and imaging effects through fans and light-transmitting lenses.
The projection range is expanded, the cost and volume of the projection device is reduced, the adaptability is improved, and the aesthetics and user experience of the refrigerator are enhanced.
Smart Images
Figure CN120406035A_ABST
Abstract
Description
Technical Field
[0001] This application relates to the technical field of low-temperature storage, for example, a projection device and a refrigerator for household appliances. Background Art
[0002] With the development of projection technology, people have begun to explore ways to display refrigerator information other than in the form of a display screen. For example, in related technologies, a refrigerator with a projection device is disclosed, which includes a box body, a door body cooperating with the box body, a projection device installed on the door body, and a controller communicatively connected to the projection device. The door body has a projection area for displaying the content of the projection interface projected by the projection device and a receiving cavity recessed backward from the front side; the refrigerator further includes a push-pull seat that can switch between a pop-up state and a receiving state received in the receiving cavity. An opening is provided on the push-pull seat for the projection interface of the projection device to be projected onto the projection area. When the push-pull seat is in the receiving state, the projection device is located inside the door body; when the push-pull seat is in the pop-up state, the projection interface projected by the projection device is projected onto the projection area through the opening. Thus, when the projection device is not needed, the projection device can be received inside the door body, which does not affect the appearance of the door body and will not accumulate dust, facilitating the use of the user.
[0003] In the process of implementing the embodiments of the present disclosure, it is found that at least the following problems exist in related technologies:
[0004] Limited by the installation position and projection form of the projection device, the projection range of the projection device is small and the display content is less.
[0005] It should be noted that the information disclosed in the above background art section is only used to enhance the understanding of the background of the present application. Therefore, it may include information that does not constitute the prior art known to those of ordinary skill in the art. Summary of the Invention
[0006] To have a basic understanding of some aspects of the disclosed embodiments, a simple summary is given below. The summary is not a general review, nor is it intended to identify key / important constituent elements or delineate the protection scope of these embodiments. Instead, it serves as a preamble to the subsequent detailed description.
[0007] The embodiments of the present disclosure provide a projection device and a refrigerator for household appliances to increase the display range of the projection device.
[0008] In some embodiments, for the projection device of a household appliance, the projection device includes a housing, a light source assembly, a first reflector, and a second reflector. Among them, the housing is configured with an accommodation space; the light source assembly is disposed in the accommodation space, and the light source assembly is used to convert the information to be displayed into an image and emit projection light carrying the image. The image includes first display information and second display information; the first reflector is disposed corresponding to the light emitting direction of the light source assembly, and the first reflector is used to reflect the projection light carrying the first display information to the first display area of the household appliance; the second reflector is disposed corresponding to the light emitting direction of the light source assembly, and the second reflector is used to reflect the projection light carrying the second display information to the second display area of the household appliance.
[0009] In some embodiments, two opposite side walls of the housing are respectively provided with a first projection window and a second projection window; the first reflector is disposed in the accommodation space, and the projection light reflected by the first reflector passes through the first projection window; the second reflector is disposed in the accommodation space, and the projection light reflected by the second reflector passes through the second projection window.
[0010] In some embodiments, the first reflector and the second reflector are of an integral structure.
[0011] In some embodiments, the first reflector is rotatable relative to the light source assembly; and / or, the second reflector is rotatable relative to the light source assembly.
[0012] In some embodiments, the light source assembly includes a plurality of light source units, the plurality of light source units are arranged side by side, and each light source unit can be independently controlled to emit display light.
[0013] In some embodiments, a ventilation opening is provided at the rear side of the housing, and the accommodation space of the housing exchanges heat with the surrounding environment through the ventilation opening.
[0014] In some embodiments, the ventilation opening includes an air inlet and an air outlet, and the projection device further includes a fan, and the fan is used to drive air to enter the accommodation space from the air inlet or flow out of the accommodation space through the air outlet.
[0015] In some embodiments, the projection device further includes a first light-transmitting lens, the first light-transmitting lens is disposed in the accommodation space and divides the accommodation space into a projection area and a reflection area that are not communicated with each other. The light source assembly is disposed in the projection area, and the first reflector and the second reflector are disposed in the reflection area. The light emitted by the light source assembly passes through the light-transmitting lens and shines on the first reflector and the second reflector.
[0016] In some embodiments, the first light-transmitting lens is a Fresnel lens, and the first light-transmitting lens and the light source assembly are movable relative to each other to adjust the focal length.
[0017] In some embodiments, the refrigerator includes a cabinet, a first inner container, a second inner container, and the above-described projection device. The cabinet is configured with a storage space. The first inner container is disposed in the storage space and defines a first storage area. The second inner container is disposed side by side with the first inner container in the storage space and defines a second storage area. The projection device is disposed between the first inner container and the second inner container so as to be extendable and retractable. The first reflector of the projection device is configured to reflect the projection light carrying the first display information to the first storage area. The second reflector of the projection device is configured to reflect the projection light carrying the second display information to the second storage area.
[0018] The projection device and the refrigerator for household appliances provided by the embodiments of the present disclosure can achieve the following technical effects:
[0019] The projection device provided by the embodiments of the present disclosure projects simultaneously to different display areas of the household appliance through the first reflector and the second reflector, and has a large projection range. The projection device, as an independent module, can be applied to different household appliances such as refrigerators and washing machine-dryer sets, and has strong adaptability. By using a set of light source components and multiple reflectors to project to multiple areas, compared with the form of setting multiple sets of independent projection devices, the projection device has a lower cost and a smaller volume.
[0020] The above general description and the following description are only exemplary and explanatory, and are not used to limit the present application. BRIEF DESCRIPTION OF THE DRAWINGS
[0021] One or more embodiments are exemplarily illustrated by corresponding drawings. These exemplary illustrations and the drawings do not constitute a limitation on the embodiments. Elements with the same reference numerals in the drawings are shown as similar elements. The drawings do not constitute a scale limitation, and:
[0022] Figure 1 is a schematic structural diagram of a refrigerator provided by an embodiment of the present disclosure;
[0023] Figure 2 is a schematic cross-sectional view of a refrigerator provided by an embodiment of the present disclosure;
[0024] Figure 3 is a schematic cross-sectional view of another refrigerator provided by an embodiment of the present disclosure;
[0025] Figure 4 is a schematic structural diagram of a projection device for a refrigerator provided by an embodiment of the present disclosure;
[0026] Figure 5 It is a schematic structural diagram of a projection device for a refrigerator after removing the top plate provided by an embodiment of the present disclosure;
[0027] Figure 6 It is a schematic structural diagram of another projection device for a refrigerator provided by an embodiment of the present disclosure;
[0028] Figure 7 It is a schematic structural diagram of another projection device for a refrigerator provided by an embodiment of the present disclosure;
[0029] Figure 8 It is a schematic structural diagram of another projection device for a refrigerator provided by an embodiment of the present disclosure;
[0030] Figure 9 It is a schematic structural diagram of another projection device for a refrigerator provided by an embodiment of the present disclosure;
[0031] Figure 10 It is a schematic structural diagram of another projection device for a refrigerator provided by an embodiment of the present disclosure;
[0032] Figure 11 It is a schematic structural diagram of an electronic tag of a projection device provided by an embodiment of the present disclosure;
[0033] Figure 12 It is a schematic diagram of the sliding track of a projection device cooperating with a sliding fitting part provided by an embodiment of the present disclosure.
[0034] Reference numerals:
[0035] 10: Projection device; 20: Cabinet; 21: First inner liner; 22: First door; 23: Second inner liner; 24: Second door; 25: First mounting plate; 26: Second mounting plate; 31: Shelf; 32: Drawer; 100: Housing; 110: Top plate; 111: First projection window; 120: Bottom plate; 121: Second projection window; 130: Rear plate; 131: Ventilation opening; 132: Air inlet; 133: Air outlet; 140: Fan; 200: Light source assembly; 210: Light source unit; 310: First reflector; 320: Second reflector; 400: First light-transmitting lens; 500: Middle beam assembly; 510: Avoidance window; 600: Image acquisition assembly; 610: First image acquisition unit; 620: Second image acquisition unit; 710: Gesture recognition module; 720: Voice recognition module; 730: Display touch module; 800: Accommodating groove; 810: Partition assembly; 820: Electronic tag; 821: First clamping part; 822: Second clamping part; 900: Driving device; 910: Sliding track; 911: Limiting part; 920: Sliding fitting part; 930: First driving unit; 940: Second driving unit. Detailed implementation manners
[0036] In order to more comprehensively understand the features and technical content of the embodiments of the present disclosure, the implementation of the embodiments of the present disclosure will be described in detail below with reference to the accompanying drawings. The accompanying drawings are for reference and illustration purposes only and are not used to limit the embodiments of the present disclosure. In the following technical descriptions, for the sake of explanation, numerous details are provided to provide a full understanding of the disclosed embodiments. However, one or more embodiments may still be implemented without these details. In other cases, well-known structures and devices may be shown in a simplified manner to simplify the drawings.
[0037] In the description of the embodiments of the present disclosure, the terms "first", "second", etc. in the specification, claims and the above-mentioned drawings are used to distinguish similar objects and do not necessarily describe a specific order or sequence. It should be understood that such data can be interchanged under appropriate circumstances. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusion.
[0038] In the embodiments of the present disclosure, the orientation or positional relationship indicated by the terms "upper", "lower", "inner", "middle", "outer", "front", "rear", etc. is based on the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the embodiments of the present disclosure and their embodiments, and are not used to limit that the indicated devices, elements or components must have a specific orientation or be constructed and operated in a specific orientation. And, in addition to being able to represent an orientation or positional relationship, some of the above terms may also be used to represent other meanings. For example, the term "upper" may also be used to represent a certain attachment relationship or connection relationship in some cases. For those of ordinary skill in the art, the specific meanings of these terms in the embodiments of the present disclosure can be understood according to specific circumstances.
[0039] In addition, the terms "arranged", "connected" and "fixed" should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral structure; it can be a mechanical connection or an electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or there can be internal communication between two devices, elements or components. For those of ordinary skill in the art, the specific meanings of the above terms in the embodiments of the present disclosure can be understood according to specific circumstances.
[0040] Unless otherwise specified, the term "plurality" means two or more.
[0041] In the embodiments of the present disclosure, the character " / " indicates that the objects before and after are in an "or" relationship. For example, A / B means: A or B.
[0042] The term "and / or" is an associative relationship describing objects and indicates that three relationships can exist. For example, A and / or B means: A or B, or, A and B these three relationships.
[0043] It should be noted that, without conflict, the embodiments in this disclosure and the features in the embodiments may be combined with each other.
[0044] With the development of projection technology, people have begun to explore information display methods for refrigerators other than the form of display screens. For example, in the related art, a refrigerator with a projection device is disclosed, which includes a box body, a door body cooperating with the box body, a projection device installed on the door body, and a controller communicatively connected to the projection device. The door body has a projection area for displaying the content of the projection interface projected by the projection device and a receiving cavity recessed backward from the front side; the refrigerator further includes a push-pull seat that can be switched between a pop-up state and a receiving state when received in the receiving cavity. An opening is provided on the push-pull seat for the projection interface of the projection device to be projected onto the projection area. When the push-pull seat is in the receiving state, the projection device is located inside the door body; when the push-pull seat is in the pop-up state, the projection interface projected by the projection device is projected onto the projection area through the opening. Thus, when the projection device is not needed, the projection device can be received inside the door body, which does not affect the appearance of the door body and will not accumulate dust, facilitating the use of the user. The problem of the related art is that the projection device is installed inside the door body of the refrigerator, and the skill can project towards the front side of the door body, and cannot project to positions such as the front end of the shelf inside the refrigerator and the front panel of the drawer; when the projection device projects, it protrudes outward from the refrigerator door body and can only project to one side of the projection device. If the projection area is increased, the projection pattern is severely distorted, so the projection area is relatively small.
[0045] In order to increase the display range of the projection device, in combination with Figures 1-12 As shown, the embodiment of the present disclosure provides a projection device 10 for household appliances. The projection device 10 includes a housing 100, a light source assembly 200, a first reflector 310, and a second reflector 320. Among them, the housing 100 is configured with an accommodation space; the light source assembly 200 is disposed in the accommodation space. The light source assembly 200 is used to convert the information to be displayed into an image and emit projection light carrying the image. The image includes first display information and second display information; the first reflector 310 is disposed corresponding to the light emitting direction of the light source assembly 200, and the first reflector 310 is used to reflect the projection light carrying the first display information to the first display area of the household appliance; the second reflector 320 is disposed corresponding to the light emitting direction of the light source assembly 200, and the second reflector 320 is used to reflect the projection light carrying the second display information to the second display area of the household appliance.
[0046] The projection device 10 provided by the embodiment of the present disclosure is applicable to refrigerators such as double-door refrigerators, French refrigerators, and four-door refrigerators, the front side of the box body 20 of which can be divided into two parts, and can also be used for stacked washing machine and dryer sets.
[0047] The projection device 10 includes a housing 100. An accommodation space is defined inside the housing 100, and the accommodation space is used to arrange various components for implementing the projection function.
[0048] The projection device 10 further includes a light source assembly 200. The light source assembly 200 is arranged in the accommodation space, and the light source group can be controlled to emit projection light. Exemplarily, the light source assembly 200 can emit a planar pattern carrying projection information. Another exemplarily, the light source assembly 200 can emit a light beam, and different information prompts can be given to the user by whether to emit the light beam and the color of the light beam.
[0049] In the use state of the projection device 10, the light source assembly 200 is arranged inside the housing 100 and located at the rear side of the accommodation space. The first reflector 310 and the second reflector 320 are arranged at the front side of the projection device 10 and face the light emitting direction of the light source assembly 200. A part of the projection light emitted by the projection device 10 is reflected by the first reflector 310 to the first display area of the household appliance, and another part is reflected by the second reflector 320 to the second display area of the household appliance. Exemplarily, the household appliance is a two-door refrigerator. The projection device 10 is housed in the housing 20. The light emitted by the light source assembly 200 is respectively reflected by the first reflector 310 to the door of the upper part of the refrigerator and by the second reflector 320 to the door of the lower part of the refrigerator. It should be noted that when the projection light emitted by the light source assembly 200 is a planar pattern, the first reflector 310 reflects the first part of the planar pattern, and the second reflector 320 reflects the second part of the planar pattern.
[0050] The projection device 10 provided by the embodiment of the present disclosure projects onto different display areas of the household appliance simultaneously through the first reflector 310 and the second reflector 320, and the projection range is relatively large; the projection device 10 is an independent module and can be applied to different household appliances such as refrigerators and washing machine-dryer sets, with strong adaptability; by using a group of light source assemblies 200 and multiple reflectors to project onto multiple areas, compared with the form of setting multiple sets of independent projection devices 10, the projection device 10 has a lower cost and a smaller volume.
[0051] Optionally, the included angle between the first reflector 310 and the light emitting direction of the light source assembly 200 is greater than 90 degrees and less than 180 degrees.
[0052] In the case where the light source assembly 200 emits light horizontally from inside to outside, such a setting angle can better enable the first reflector 310 to reflect the projection pattern to the first area of the household appliance.
[0053] The included angle between the second reflector 320 and the light emitting direction of the light source assembly 200 is greater than 90 degrees and less than 180 degrees.
[0054] When the light source assembly 200 emits light horizontally from the inside outwards, such a setting angle can better enable the second reflector 320 to reflect the projection pattern to the second area of the household appliance.
[0055] Optionally, the docking position where the first reflector 310 and the second reflector 320 are docked faces the light source assembly 200.
[0056] This can reduce or avoid the light reflected by the first reflector 310 and the light reflected by the second reflector 320 from overlapping on the propagation path.
[0057] Optionally, two opposite side walls of the housing 100 are respectively provided with a first projection window 111 and a second projection window 121; the first reflector 310 is arranged in the accommodating space, and the projection light reflected by the first reflector 310 passes through the first projection window 111; the second reflector 320 is arranged in the accommodating space, and the projection light reflected by the second reflector 320 passes through the second projection window 121.
[0058] The housing 100 includes a top plate 110 and a bottom plate 120. The top plate 110 is provided with the first projection window 111, and the top plate 110 is provided with the second projection window 121. The first reflector 310 and the second reflector 320 are arranged in the accommodating space. The projection light emitted by the light source assembly 200 is reflected by the first reflector 310 and then transmitted through the first projection window 111 to the first display area of the household appliance, and the projection light emitted by the light source assembly 200 is reflected by the second reflector 320 and then transmitted through the second projection window 121 to the second display area of the household appliance.
[0059] With such a setting form, both the first reflector 310 and the second reflector 320 are located inside the housing 100, and the mirror surfaces are not easily contaminated. In addition, since both the first reflector 310 and the second reflector 320 are located inside the housing 100, the front end of the housing 100 can be used as the appearance part of the household appliance or an appearance decorative strip can be provided, which can improve the aesthetics of the household appliance after the projection device 10 is set.
[0060] Optionally, the first reflector 310 and the second reflector 320 are of an integral structure.
[0061] The first reflector 310 and the second reflector 320 are of an integral structure, which can improve the structural strength of the first reflector 310 and the second reflector 320. In addition, when the projection light emitted by the light source assembly 200 is a planar pattern, the first reflector 310 and the second reflector 320 of the integral structure can be docked more tightly at the docking position, which can reduce the area of the transition part between the first part and the second part of the projection pattern of the light source assembly 200, thereby improving the utilization rate of the imaging ability of the light source assembly 200.
[0062] Optionally, the first reflector 310 can rotate relative to the light source assembly 200; and / or, the second reflector 320 can rotate relative to the light source assembly 200.
[0063] The first reflector 310 can rotate relative to the light source assembly 200. By rotating the first reflector 310, the position of the projection light reflected by the first reflector 310 to the first area of the household appliance can be adjusted. In this way, during the production debugging process of the household appliance and during its use after delivery, the imaging position can be adjusted by rotating the first reflector 310, which facilitates the production and use of the household appliance.
[0064] The second reflector 320 can rotate relative to the light source assembly 200. By rotating the second reflector 320, the position of the projection light reflected by the second reflector 320 to the second area of the household appliance can be adjusted. In this way, during the production debugging process of the household appliance and during its use after delivery, the imaging position can be adjusted by rotating the second reflector 320, which facilitates the production and use of the household appliance.
[0065] Optionally, the light source assembly 200 includes a plurality of light source units 210 arranged side by side, and each light source unit 210 can be independently controlled to emit display light.
[0066] The projection device 10 is plate-shaped, and the length and width dimensions are much larger than the dimension in the thickness direction. This can reduce the space occupancy rate of the projection device 10, so that the light source assembly 200 is more suitable for household appliances with an upper and lower segmented structure.
[0067] The light source assembly 200 includes a plurality of light source units 210 arranged side by side, which can enable the projection device 10 to display more content. During use, the first reflector 310 can reflect some content of the plurality of light source units 210, or the first reflector 310 can reflect all the content of some light source units.
[0068] With such a setting, when the household appliance needs to display less content, only some of the light source units 210 can be activated to reduce the energy consumption of the projection device 10. In addition, when multiple light source assemblies 200 are combined or superimposed to emit projection light, the imaging effect of the projection device 10 is better.
[0069] Optionally, the light source unit 210 emits monochromatic light, and the monochromatic lights of the plurality of light source units 210 are superimposed to form the colored light arranged on the household appliance.
[0070] With such a setting, the cost of the light source assembly 200 can be reduced.
[0071] Optionally, a ventilation opening 131 is provided at the rear side of the housing 100, and the accommodation space of the housing 100 exchanges heat with the surrounding environment through the ventilation opening 131.
[0072] When the light source assembly 200 is working, it generates a lot of heat. If the heat dissipation is not timely, it will affect the lifespan of the light source assembly 200. A ventilation opening 131 is provided at the rear side of the housing 100, and the heat emitted by the light source assembly 200 can be carried away through air flow, so that the light source assembly 200 is in a suitable working temperature range. By adopting such a setting form, the service life of the projection device 10 can be improved.
[0073] Optionally, the ventilation opening 131 includes an air inlet 132 and an air outlet 133. The projection device 10 further includes a fan 140, and the fan 140 is used to drive air to enter the accommodation space from the air inlet 132 or flow out of the accommodation space through the air outlet 133.
[0074] With the fan 140 provided, when the natural convection effect of the air inside the projection device 10 is poor, the air can be driven to circulate by the fan 140. This can further reduce the temperature of the light source assembly 200 during operation, thereby improving the service life of the projection device 10.
[0075] Optionally, the projection device 10 further includes a first light-transmitting lens 400. The first light-transmitting lens 400 is disposed in the accommodation space and divides the accommodation space into a projection area and a reflection area that do not communicate with each other. The light source assembly 200 is disposed in the projection area, and the first reflector 310 and the second reflector 320 are disposed in the reflection area. The light emitted by the light source assembly 200 passes through the light-transmitting lens and shines on the first reflector 310 and the second reflector 320.
[0076] The first light-transmitting lens 400 allows light to pass through and serves to physically separate the accommodation space, so as to reduce the air circulation between the projection area and the reflection area of the accommodation space. When the fan 140 rotates, there is no air flow in the reflection area. On the one hand, this can reduce or avoid dust from falling on the first reflector 310 and the second reflector 320. On the other hand, it can avoid air leakage at the front end of the housing 100 when the fan 140 rotates. In addition, by providing the first light-transmitting lens 400, the noise of the fan 140 can be reduced to a certain extent, thereby improving the user experience.
[0077] Optionally, the first light-transmitting lens 400 is a Fresnel lens, and the first light-transmitting lens 400 and the light source assembly 200 can move relative to each other to adjust the focal length.
[0078] The first light-transmitting lens 400 is a Fresnel projection lens. The imaging focal length of the projection device 10 can be adjusted by moving the first light-transmitting lens 400, which can make the projection device 10 of household appliances easy to debug and use.
[0079] The first light-transmitting lens 400 is a Fresnel lens. The overall thickness of the first light-transmitting lens 400 is small, and it can be set in a shape such as a rectangle to fit the shape of the accommodation space.
[0080] Combined Figures 1-12 As shown, an embodiment of the present disclosure provides a refrigerator, which includes a box body 20, a first inner liner 21, a second inner liner 23, and the above-mentioned projection device 10. Among them, the box body 20 is configured with a storage space; the first inner liner 21 is disposed in the storage space, and the first inner liner 21 defines a first storage area; the second inner liner 23 is disposed side by side with the first inner liner 21 in the storage space, and the second inner liner 23 defines a second storage area; the projection device 10 is disposed between the first inner liner 21 and the second inner liner 23 in a retractable manner, and a first reflecting mirror 310 of the projection device 10 is used to reflect the projection light carrying the first display information to the first storage area; a second reflecting mirror 320 of the projection device 10 is used to reflect the projection light carrying the second display information to the second storage area.
[0081] In the embodiment of the present disclosure, the refrigerator is a refrigerator in an upper and lower segmented form such as a double-door refrigerator, a French refrigerator, or a four-door refrigerator. The refrigerator box body 20 and the first inner liner 21 and the second inner liner 23 disposed in the box body 20, and the first inner liner 21 is located above the second inner liner 23. The first inner liner 21 defines a first storage area, and the second inner liner 23 defines a second storage area.
[0082] The projection device 10 is disposed in the middle of the refrigerator. In the case where the refrigerator is a double-door refrigerator, the projection device 10 is disposed between the first inner liner 21 and the second inner liner 23. The projection device 10 is in a retractable form. When the projection device 10 extends, the front end extends outwards and exceeds the front end face of the box body 20. When the projection device 10 retracts, it is received in the accommodation space of the box body 20.
[0083] When the projection device 10 extends, it projects to both the first storage area and the second storage area at the same time. When the door of the first inner liner 21 is closed, the projection device 10 projects to the outer wall of the door of the first inner liner 21; when the door of the first inner liner 21 is opened, the projection device 10 projects to the front end face of the shelf 31 in the first inner liner 21. When the door of the second inner liner 23 is closed, the projection device 10 projects to the outer wall of the door of the second inner liner 23; when the door of the second inner liner 23 is opened, the projection device 10 projects to the front end face of the shelf 31 or the door in the second inner liner 23.
[0084] For the refrigerator provided by the embodiment of the present disclosure, since the projection device 10 is disposed between the first inner liner 21 and the second inner liner 23, the projection device 10 has a better projection angle, can project upwards and downwards at the same time, increases the projection area, and enriches the projection mode of the refrigerator.
[0085] Optionally, the refrigerator further includes a middle beam assembly 500 disposed between the first inner liner 21 and the second inner liner 23. An avoidance window 510 is formed on the front end face of the middle beam assembly 500. The projection device 10 is slidably disposed within the middle beam assembly 500 and can extend out from the avoidance window 510.
[0086] The middle beam assembly 500 is disposed between the first inner liner 21 and the second inner liner 23 as a structural member of the refrigerator. At the same time, the middle beam assembly 500 is in a hollow form to accommodate the projection device 10. An avoidance window 510 is provided at the front end of the middle beam assembly 500, and the avoidance window 510 is used to avoid the extension and retraction of the projection device 10.
[0087] The provision of the middle beam assembly 500 can improve the structural strength of the refrigerator. The projection device 10 extends and retracts from the avoidance window 510 of the middle beam, which can make the projection device 10 have a small fitting gap with its installation position, thereby improving the overall aesthetics of the refrigerator.
[0088] Optionally, the refrigerator further includes a first door 22 and a shelf 31. The first door 22 is used to open and close the first storage area, and the shelf 31 is disposed in the first storage area. When the first door 22 is closed, the projection light emitted by the projection device 10 is adapted to the first door 22, and when the first door 22 is opened, the light emitted by the projection device 10 is adapted to the front end of the shelf 31.
[0089] The first door 22 is hinged to the cabinet 20 and cooperates with the first inner liner 21, and the shelf 31 is disposed in the inner liner. When the door is opened, the projection light emitted by the projection device 10 is projected onto the front end face of the shelf 31. Exemplarily, the projection pattern can be a flashing light indicating the location of the food ingredients, or the projection pattern can be lights of different colors indicating the freshness of the food ingredients. When the door is closed, the light emitted by the projection device 10 is projected onto the outer wall of the first door 22. Exemplarily, the projection pattern can be a graphic display screen of the refrigerator, and the graphic display screen includes the operating information of the refrigerator.
[0090] With such a setting form, the projection device 10 of the refrigerator can project onto the outer wall of the first door 22 or onto the front end face of the shelf 31 in the inner liner. This further broadens the usage mode of the projection device 10, enables the refrigerator to have multiple display screens with only one set of projection device 10, improves the high-class sense of the refrigerator, and improves the user experience.
[0091] Optionally, the refrigerator further includes a second door 24 and a drawer 32. The second door 24 is used to open and close the second storage area, and the drawer 32 is slidably disposed in the second storage area. When the first door 22 is closed, the projection light emitted by the projection device 10 is adapted to the second door 24, and when the second door 24 is opened, the light emitted by the projection device 10 is adapted to the front end of the drawer 32.
[0092] The second door 24 is hinged to the cabinet 20 and cooperates with the second inner liner 23. The drawer 32 is arranged in the inner liner. When the door is opened, the projection light emitted by the projection device 10 is projected onto the front end face of the drawer 32. Exemplarily, the projection pattern can be a flashing light indicating the location of the food ingredients, or the projection pattern can be lights of different colors indicating the freshness of the food ingredients. When the door is closed, the light emitted by the projection device 10 is projected onto the outer wall of the second door 24. Exemplarily, the projection pattern can be a graphic display screen of the refrigerator, and the graphic display screen includes the operating information of the refrigerator.
[0093] With such a setting form, the projection device 10 of the refrigerator can project onto the outer wall of the second door 24 or onto the front end face of the shelf 31 in the inner liner. This further broadens the usage mode of the projection device 10, enables the refrigerator to have multiple display screens with only one set of projection device 10, improves the high-class sense of the refrigerator, and improves the user experience.
[0094] Optionally, the refrigerator further includes a door switch sensor and a control unit. The door switch sensor is used to detect the opening and closing state of the first door 22; the control unit is configured to control the projection device 10 to switch the projection information according to the opening and closing state of the first door 22.
[0095] When the door of the refrigerator is in different opening and closing states, the projection device 10 needs to have different projection strategies. For example, when the first door 22 is opened, the projection of the projection device 10 onto the first storage area is turned off or the projection information of the projection device 10 is changed, and the planar graphic is switched to the indicating light. The provision of the door switch sensor and the control unit can make the projection control of the projection device 10 more intelligent.
[0096] Optionally, the door switch sensor is further used to detect the opening angle of the first door 22, and the control unit is configured to control the projection device 10 not to project onto the first storage area when the first door 22 is opened and the opening angle is less than the first angle.
[0097] When the opening angle of the first door 22 is small, the projection light emitted by the projection device 10 towards the shelf 31 may be blocked by the door, and if the projection continues, the pattern will be deformed. Therefore, when the first door 22 is opened and the opening angle is less than the first angle, the projection of the projection device 10 onto the first storage area is turned off.
[0098] Optionally, the door switch sensor is further used to detect the opening and closing state of the second door 24; the control unit is further configured to control the projection device 10 to switch the projection information according to the opening and closing state of the second door 24.
[0099] When the refrigerator door is in different open / closed states, the projection device 10 needs to have different projection strategies. For example, when the second door 24 is opened, the projection of the projection device 10 to the second storage area is turned off or the projection information of the projection device 10 is changed to switch the planar graph to an indicating light. A door switch sensor and a control unit are provided, which can make the projection control of the projection device 10 more intelligent.
[0100] Optionally, the door switch sensor is further configured to detect the opening angle of the second door 24, and the control unit is configured to control the projection device 10 not to project to the second storage area when the second door 24 is opened and the opening angle is less than a second angle.
[0101] When the opening angle of the second door 24 is small, the projection light emitted by the projection device 10 towards the shelf 31 may be blocked by the door, and if projection continues, the pattern will be deformed. Therefore, when the second door 24 is opened and the opening angle is less than the second angle, the projection of the projection device 10 to the second storage area is turned off.
[0102] Optionally, the refrigerator body 20 is configured with a refrigeration air duct, and a ventilation opening 131 is formed at the rear side of the housing 100, and the ventilation opening 131 communicates with the refrigeration air duct.
[0103] The housing 100 includes a rear back plate 130, and the ventilation opening 131 is formed in the rear back plate 130. When the light source assembly 200 works, it generates a lot of heat. If the heat dissipation is not timely, it will affect the service life of the light source assembly 200. The ventilation opening 131 is formed at the rear side of the housing 100, and the heat emitted by the light source assembly 200 can be taken away through air flow, so that the light source assembly 200 is in a suitable working temperature range. By adopting such a setting form, the service life of the projection device 10 can be improved.
[0104] Further, the refrigerator body 20 is configured with a refrigeration air duct, and the refrigeration air duct communicates with the ventilation opening 131. The light source assembly 200 can be in a low-temperature environment through natural convection or forced air flow, which can improve the working stability of the light source assembly 200, and thus improve the service life of the projection device 10.
[0105] Optionally, the refrigerator further includes an image acquisition component 600, and the image acquisition component 600 is arranged on the projection device 10, and the image acquisition component 600 is used to acquire images of the first storage area and the second storage area.
[0106] For the refrigerator provided by the disclosed embodiment, the image acquisition component 600 is arranged on the projection device 10 of the refrigerator and can extend and retract with the projection device 10, and the appearance of the refrigerator is more beautiful; the projection device 10 is located in the middle of the refrigerator, and the image acquisition component 600 is relatively close to both the first storage area and the second storage area, so that the refrigerator can more accurately identify food ingredients.
[0107] Optionally, the projection device 10 includes a top plate 110 and a bottom plate 120; the image acquisition component 600 includes a first image acquisition unit 610 and a second image acquisition unit 620. The first image acquisition unit 610 is disposed on the top plate 110 and is used to acquire an image of the first storage area; the second image acquisition unit 620 is disposed on the bottom plate 120 and is used to acquire an image of the second storage area.
[0108] In order to simultaneously acquire images above and below the projection device 10, as an implementation manner, the image acquisition unit includes a first image acquisition unit 610 and a second acquisition unit. The first image acquisition unit 610 acquires an image of the first storage area upward, and the second image acquisition unit 620 acquires an image of the second storage area downward. The first image acquisition unit 610 is disposed on the top plate 110 and the second acquisition unit is disposed on the bottom plate 120. After the projection device 10 extends out, both the upper and lower surfaces are relatively flat, which can improve the aesthetics of the refrigerator.
[0109] Optionally, the image acquisition component 600 is disposed in the accommodation space, and the first reflector 310 is further configured to reflect the image of the first storage area to the image acquisition component 600; the second reflector 320 is further configured to reflect the image of the second storage area to the image acquisition component 600.
[0110] With such a setting form, only one image acquisition unit is needed to simultaneously acquire images above and below the projection device 10, reducing the hardware cost of the image acquisition component 600. In addition, since the image acquisition unit is located inside the projection device 10, the image acquisition unit is not easily damaged.
[0111] Optionally, the refrigerator further includes a gesture recognition module 710, and the gesture recognition module 710 is disposed on the projection device 10; the control unit is further configured to control the projection device 10 to extend or retract according to the signal of the gesture recognition module 710.
[0112] The setting of the gesture recognition module 710 can make the extension and retraction of the projection device 10 easier to control.
[0113] Optionally, the refrigerator further includes a voice recognition module 720, and the voice recognition module 720 is disposed on the refrigerator. The control unit is further configured to control the projection device 10 to extend or retract according to the signal of the voice recognition module 720.
[0114] The setting of the gesture recognition module 710 can make the extension and retraction of the projection device 10 easier to control.
[0115] Optionally, the refrigerator further includes a display touch module 730, and the display touch module 730 is disposed on the upward side of the projection device 10.
[0116] The projection device 10 is provided with a display touch module 730. The display content of the display touch module 730 can be used as a supplement or replacement for the projection content, and the user operates the refrigerator through the projection device 10. With such a setting form, the projection device 10 is more convenient to use. In addition, the highly integrated setting form of the projection device 10 is beneficial to the production and maintenance of the refrigerator.
[0117] Optionally, the upward-facing surface of the projection device 10 is configured with a receiving groove 800, and the receiving groove 800 is located behind the display module.
[0118] The refrigerator provided by the embodiment of the present disclosure is provided with a projection device 10 for accommodating an electronic tag 820. The projection device 10 is in a form of extending and retracting, and it is easy for the user to pick up and place the electronic tag 820; the projection device 10 is located between the first inner liner 21 and the second inner liner 23. The projection device 10 utilizes the space inside the cabinet 20 but does not occupy the refrigerating space or the freezing space of the refrigerator. The provision of the projection device 10 and the electronic tag 820 will not affect the refrigerating space of the refrigerator, and improves the storage and accommodation capacity of the refrigerator; the electronic tag 820 is located in the receiving groove 800, and the electronic tag 820 is not easily dropped.
[0119] Optionally, the projection device 10 includes a top plate 110 and a partition assembly 810. Among them, the top plate 110 is recessed downward to form a receiving groove 800; the partition assembly 810 is disposed in the receiving groove 800 to divide the receiving groove 800 into a plurality of receiving units, and the plurality of receiving units are adapted to place a plurality of electronic tags 820.
[0120] When a plurality of electronic tags 820 are arranged in the receiving groove 800, the electronic tags 820 need to be arranged according to a certain rule. Specifically, the top plate 110 of the projection device 10 is recessed downward to form a receiving groove 800, and a partition assembly 810 is disposed in the receiving groove 800 to divide the receiving groove 800 into a plurality of receiving units. With such a setting form, the electronic tags 820 can be neatly accommodated in the projection device 10, which is convenient for the user to use.
[0121] Optionally, the refrigerator further includes a reading and writing module. The reading and writing module is disposed on the projection device 10, and the reading and writing module is used to read the information of the electronic tag 820 or write information to the electronic tag 820.
[0122] Different users have different eating habits and different habits of storing food ingredients. If the information of the electronic tag 820 is fixed, there may be a situation where the tags indicating the first type of food ingredients are not enough for use while the tags indicating the second type of food ingredients are excessive. In order to enable the electronic tag 820 to meet the personalized food ingredient management needs of users, the refrigerator also sets a reading and writing module in the projection device 10. The reading and writing module can read the information of the electronic tag 820, and the reading and writing module can also write the information of the electronic tag 820. As a usage scenario, when the user stores food ingredients, the electronic tag 820 is created through the reading and writing module. The electronic tag 820 stores the type, weight, and purchase date of the food ingredient. The user puts the food ingredient and the electronic tag 820 into the refrigerator together. After the user actively rummages through the refrigerator to find the food ingredient, the information of the electronic tag 820 is read through the reading and writing module to know the type quantity and purchase date of the food ingredient. After the user takes out the food ingredient, the electronic tag 820 is put into the accommodating groove 800 of the projection device 10, and the reading and writing module erases the information stored in the electronic tag 820.
[0123] With such a setting form, the refrigerator can better play a role in assisting users in managing food ingredients.
[0124] Optionally, the partition assembly 810 includes a horizontal partition and a vertical partition. Among them, the horizontal partition is used to divide the accommodating groove 800 into multiple accommodating compartments; the vertical partition is arranged in the accommodating compartment to divide the accommodating compartment into multiple accommodating units.
[0125] The horizontal partition and the vertical partition divide the accommodating groove 800 into multiple rows and columns of accommodating units, which can further improve the storage capacity of the electronic tag 820 of the projection device 10.
[0126] Optionally, the refrigerator further includes an electronic tag 820. The electronic tag 820 is placed in the accommodating groove 800, and the thickness of the electronic tag 820 is greater than the depth of the accommodating groove 800.
[0127] Since the thickness of the electronic tag 820 is greater than the depth of the accommodating groove 800, it is easy for the user to take out the electronic tag 820 from the accommodating groove 800.
[0128] Optionally, the electronic tag 820 includes a first clamping portion 821, a second clamping portion 822, and a spring. Among them, the first clamping portion 821 is internally provided with a chip; the second clamping portion 822 is hinged to the first clamping portion 821; the spring is elastically connected between the first clamping portion 821 and the second clamping portion 822, and the spring makes the first clamping portion 821 and the second clamping portion 822 in a clamping state in the initial state.
[0129] The electronic tag 820 is in the form of a clip, and the electronic tag 820 can be clamped to the outer packaging bag of the food material so as to be physically bound to the food material. The electronic tag 820 is provided with a chip only at the first clamping portion 821, which can simplify the structure of the electronic tag 820 and thus reduce the cost of the electronic tag 820.
[0130] Optionally, the refrigerator further includes a driving device 900 for driving the projection device 10 to extend and retract. When the driving device 900 drives the projection device 10 to extend the first section, the touch display area is located outside the storage space of the box body 20, and the accommodating groove 800 is located inside the storage space of the box body 20. When the driving device 900 drives the projection device 10 to extend the second section, both the touch display area and the accommodating groove 800 extend outside the storage space of the box body 20.
[0131] With the driving device 900 provided, the projection device 10 can automatically extend and retract, which further facilitates the user's use. The driving device 900 is in the form of two-stage extension. It can extend only the touch display area, or extend both the touch display area and the accommodating groove 800 together. With such a setting form, the projection device 10 can be more beautiful in the use state, and the appearance of the refrigerator can be more beautiful.
[0132] With the driving device 900 provided, the projection device 10 can automatically extend and retract, which further facilitates the user's use. The driving device 900 is in the form of two-stage extension. It can extend only the touch display area, or extend both the touch display area and the accommodating groove 800 together. With such a setting form, the projection device 10 can be more beautiful in the use state, and the appearance of the refrigerator can be more beautiful.
[0133] The projection device 10 is arranged in the middle of the refrigerator. In the case of a double-door refrigerator, the projection device 10 is arranged between the first inner liner 21 and the second inner liner 23. The projection device 10 is in a form that can extend and retract. When the projection device 10 extends, the front end extends outwards and exceeds the front end face of the box body 20. When the projection device 10 retracts, it is received in the accommodating space of the box body 20.
[0134] The upward-facing surface of the projection device 10 is provided with a touch display area, and the projection device 10 is in a retractable form. After the projection device 10 extends, whether the refrigerator door is in the open state or the closed state, the user can observe and operate the touch display area of the projection device 10.
[0135] The refrigerator further includes a driving device 900 to drive the projection device 10 to extend and retract, which can make the extension and retraction of the projection device 10 more intelligent.
[0136] The refrigerator provided by the embodiments of the present disclosure has a touch display area disposed on the retractable projection device 10. Observation and operation of the touch display area are not affected by the opening and closing state of the refrigerator door, which is convenient for users. After the projection device 10 extends out, the upward plate surface can also be used as an area for temporarily storing items outside the touch display area, further facilitating user use. After the projection device 10 retracts, the front end surface of the refrigerator has a neat appearance. The driving device 900 drives the projection device 10 to extend and retract, making the use of the projection device 10 more intelligent and convenient.
[0137] Optionally, the refrigerator further includes a first mounting plate 25 and a second mounting plate 26. The first mounting plate 25 is disposed below the first inner container 21, and the second mounting plate 26 is disposed above the second inner container 23. The projection device 10 is disposed between the first mounting plate and the second mounting plate 26, and the driving device 900 is disposed between the first mounting plate 25 and the second mounting plate 26.
[0138] The first mounting plate 25 and the second mounting plate 26 of the refrigerator are oppositely disposed between the first inner container 21 and the second inner container 23. An installation space is formed between the first mounting plate 25 and the second mounting plate 26. The projection device 10 is slidably disposed in the installation space, and the driving device 900 is disposed in the installation space. Adopting such a setting form can reduce or avoid reducing the overall structural strength of the refrigerator due to the setting of the projection device 10. At the same time, the driving device 900 is housed inside the refrigerator, is not easily affected by the environment where the refrigerator is located or malfunction, and the refrigerator also has a beautiful appearance.
[0139] Optionally, the refrigerator further includes a sliding track 910 and a sliding fitting 920. The sliding track 910 is disposed on the second mounting plate 26, and the sliding fitting 920 is disposed at the bottom of the projection device 10 and is slidably disposed on the sliding track 910.
[0140] In order to make the projection device 10 extend and retract, the refrigerator further includes a sliding track 910 and a sliding fitting 920. The sliding fitting 920 is slidably disposed on the sliding track 910. The sliding track 910 is fixed inside the refrigerator, and the sliding fitting 920 is fixed to the projection device 10. The projection device 10 realizes a sliding connection with the sliding track 910 through the sliding fitting portion. The sliding track 910 is disposed on the second mounting plate 26, so that the sliding track 910 can better support the projection device 10.
[0141] To a certain extent, the sliding track defines a sliding path for the sliding of the projection device 10. Adopting such a setting form, the projection device 10 is not likely to skew in the left and right directions during sliding, and the sliding of the sliding plate is relatively smooth.
[0142] Optionally, the refrigerator includes at least two sliding tracks 910 and at least two sliding fittings 920, and the two sliding tracks 910 are disposed in parallel.
[0143] The refrigerator is provided with two sliding rails 910 and two sliding fittings 920 . During the sliding process, the left and right forces of the projection device 10 are relatively balanced, and the projection device 10 extends and retracts more smoothly.
[0144] Optionally, the sliding track 910 is configured with a limiting portion 911 , and the sliding fitting 920 engages with the limiting portion 911 to prevent the sliding fitting 920 from escaping upward from the sliding track 910 .
[0145] For example, the cross section of the sliding track is an I-shape, and the sliding fitting portion engages with the upper portion of the sliding track. With this arrangement, the sliding track limits the vertical position of the projection device 10, and the projection device 10 is not prone to vertical movement.
[0146] Optionally, the driving device 900 includes a first driving unit 930 and a second driving unit 940, the first driving unit 930 is used to drive the projection device 10 to extend and retract; the second driving unit 940 is used to drive the first driving unit 930 to extend and retract; wherein, when only the first driving unit 930 is extended, the projection device 10 extends the first section, and when the first driving unit 930 and the second driving unit 940 are extended at the same time, the projection device 10 extends the first section and the second section.
[0147] In this case, the drive unit 900 adopts a two-stage drive configuration, allowing the projection device 10 to be partially or fully extended. In some cases, the projection device 10 only needs to be partially extended, in which case the first drive unit 930 drives the projection device 10 to extend. In other cases, the projection device 10 needs to be fully extended, in which case the first drive unit 930 drives the projection device 10 to extend, while the second drive unit 940 drives the first drive unit 930 to extend. This configuration allows the projection device 10 to have a variety of extension options and realize different functions. For example, the front half of the projection device 10 is a touch display area, and the back half is a storage area. When the storage area is not needed, the projection device 10 is controlled to extend only the touch display area.
[0148] Optionally, the first driving unit 930 includes an electric cylinder, and the second driving unit 940 includes a pneumatic cylinder.
[0149] When the first drive unit 930 extends the projection device 10, the required movement distance is relatively precise. Electric cylinders can precisely drive the projection device 10. When the second drive unit 940 extends the projection device 10, the required movement speed is relatively high. The second drive unit 940 includes a pneumatic cylinder, which can quickly fully extend the projection device 10.
[0150] Optionally, the driving device 900 includes a driving motor, a screw rod, and a threaded sleeve. Among them, the screw rod is connected to the output shaft of the driving motor; the threaded sleeve is connected to the projection device 10 and is screwed with the screw rod. When the driving motor rotates bidirectionally, the screw rod rotates bidirectionally to drive the projection device 10 to extend and retract.
[0151] When the driving motor drives the screw rod to rotate, the threaded sleeve moves along the axial direction of the screw rod. With such a setting form, the extending distance and extending speed of the projection device 10 are easy to adjust. When a projection component or a camera component is integrally provided on the projection device 10, the accurate extension of the projection device 10 is beneficial to the focusing of the projection component and the imaging of the camera component.
[0152] Optionally, the projection device 10 further includes a top plate 110, a bottom plate 120, and side plates. The top plate 110, the bottom plate 120, and the side plates enclose and define an accommodation space, and at least part of the driving device 900 extends into the accommodation space.
[0153] The projection device 10 has a hollow structure, and the threaded sleeve of the driving device 900 extends into the projection device 10. This can improve the connection strength between the driving device 900 and the projection device 10.
[0154] The above description and the drawings fully illustrate the embodiments of the present disclosure so that those skilled in the art can practice them. Other embodiments may include structural and other changes. The embodiments only represent possible variations. Unless explicitly required, the individual components and functions are optional, and the order of operations can vary. Parts and features of some embodiments may be included in or substituted for parts and features of other embodiments. The embodiments of the present disclosure are not limited to the structures already described and shown in the drawings, and various modifications and changes can be made without departing from its scope. The scope of the present disclosure is only limited by the appended claims.
Claims
1. A projection device for household appliances, characterized in that, The projection device includes: a housing configured with an accommodation space; a light source assembly disposed in the accommodation space, the light source assembly being configured to convert pre-display information into an image and emit projection light carrying the image, the image including first display information and second display information; a first reflector disposed corresponding to the light emitting direction of the light source assembly, the first reflector being configured to reflect the projection light carrying the first display information to a first display area of a household appliance; a second reflector disposed corresponding to the light emitting direction of the light source assembly, the second reflector being configured to reflect the projection light carrying the second display information to a second display area of the household appliance.
2. The projection device according to claim 1, wherein: two opposite side walls of the housing are respectively provided with a first projection window and a second projection window; the first reflector is disposed in the accommodation space, and the projection light reflected by the first reflector passes through the first projection window; the second reflector is disposed in the accommodation space, and the projection light reflected by the second reflector passes through the second projection window.
3. The projection device according to claim 1, wherein: the first reflector and the second reflector are of an integral structure.
4. The projection device according to claim 1, wherein: the first reflector is rotatable relative to the light source assembly; and / or the second reflector is rotatable relative to the light source assembly.
5. The projection device according to claim 1, wherein: the light source assembly includes a plurality of light source units arranged side by side, and each light source unit can be independently controlled to emit display light.
6. The projection device according to claim 1, wherein: a ventilation opening is provided at the rear side of the housing, and the accommodation space of the housing exchanges heat with the surrounding environment through the ventilation opening.
7. The projection device according to claim 6, wherein: the ventilation opening includes an air inlet and an air outlet, and the projection device further includes a fan configured to drive air to enter the accommodation space from the air inlet or flow out of the accommodation space through the air outlet.
8. The projection device according to any one of claims 1 to 7, characterized in that, It further includes: a first light-transmitting lens disposed in the accommodation space and separating the accommodation space into a non-communication projection area and a reflection area, the light source assembly being disposed in the projection area, the first reflector and the second reflector being disposed in the reflection area, and the light emitted by the light source assembly passes through the light-transmitting lens and irradiates the first reflector and the second reflector.
9. The projection device according to claim 8, wherein: the first light-transmitting lens is a Fresnel lens, and the first light-transmitting lens and the light source assembly can move relative to each other to adjust the focal length.
10. A refrigerator, characterized in that, It includes: a box body configured with a storage space; a first inner container disposed in the storage space, the first inner container defining a first storage area; a second inner container disposed side by side with the first inner container in the storage space, the second inner container defining a second storage area; and, The projection device according to any one of claims 1 to 9, wherein the projection device is disposed between the first inner container and the second inner container so as to be extendable and retractable, and a first reflector of the projection device is configured to reflect projection light carrying first display information to a first storage area, and a second reflector of the projection device is configured to reflect projection light carrying second display information to a second storage area.