Range hood

Abstract

The embodiment of the utility model provides a range hood which comprises a fan box and a lower cavity, and the lower cavity and the fan box are sequentially arranged in the flowing direction of smoke; the lower cavity comprises a transverse cavity part extending in the transverse direction and a longitudinal cavity part extending in the longitudinal direction which are connected, and the longitudinal cavity part is located below the transverse cavity part; the transverse cavity part is provided with a protruding part which protrudes relative to a front panel of the longitudinal cavity part, and the lower surface of the protruding part is provided with a light-emitting area capable of forming a preset pattern; the range hood or the lower cavity is provided with a reflecting plate, the position of the reflecting plate at least comprises a reflecting position, and when the reflecting plate is located at the reflecting position, at least part of the reflecting plate is located below the protruding part to reflect the preset pattern formed by the light-emitting area. According to the embodiment of the utility model, the preset atmosphere pattern formed by the light-emitting area can be presented to a user through the reflecting plate, so that a lamplight atmosphere can be conveniently created in front of the visual field of the user.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a range hood. Background Art

[0002] Range hoods are common kitchen appliances, installed above stoves to extract cooking fumes. Currently, some range hoods are equipped with lamps, which only provide illumination and are limited in functionality. Adding features like ambient lighting requires an additional light source. Utility Model Content

[0003] The purpose of the utility model is to provide a range hood that can present a preset atmosphere pattern such as one formed by a luminous area to a user through a reflector, thereby creating a lighting atmosphere in front of the user's field of vision.

[0004] The above-mentioned purpose of the present invention can be achieved by adopting the following technical solutions:

[0005] The utility model provides a range hood.

[0006] The range hood comprises: a fan box and a lower cavity, wherein the lower cavity and the fan box are sequentially arranged along the flow direction of the smoke;

[0007] The lower cavity includes a transverse cavity portion extending in the transverse direction and a longitudinal cavity portion extending in the longitudinal direction, wherein the longitudinal cavity portion is located below the transverse cavity portion;

[0008] The transverse cavity portion has a protruding portion that is protruding from the front panel of the longitudinal cavity portion, and the lower surface of the protruding portion has a luminous area that can form a preset pattern;

[0009] The range hood or the lower cavity has a reflector, and the position of the reflector includes at least a reflection position. When the reflector is located at the reflection position, at least part of the reflector is located below the protrusion, reflecting the preset pattern formed by the luminous area.

[0010] In a preferred embodiment, when the reflector is located at the reflecting position, the reflector extends downward and forward in a direction away from the front panel of the longitudinal cavity portion to reflect the preset pattern emitted by the light-emitting area to the space below.

[0011] In a preferred embodiment, when the reflective plate is located at the reflecting position, at least a portion of the reflective plate is located below the light-emitting area.

[0012] In a preferred embodiment, a projection of the reflective plate on the lower surface of the protrusion has an overlapping area with the light-emitting area.

[0013] In a preferred embodiment, the ratio of the area of ​​the overlapping region to the area of ​​the light-emitting region is not less than a first preset ratio value, and the first preset ratio value is between 20% and 100%.

[0014] In a preferred embodiment, the ratio of the area of ​​the overlapping region to the area of ​​the light-emitting region is smaller than a second preset ratio value, and the second preset ratio value is between 60% and 100%.

[0015] In a preferred embodiment, the ratio of the area of ​​the overlapping region to the area of ​​the light-emitting region is not less than a first preset ratio value and less than a second preset ratio value, the first preset ratio value is 30%, and the second preset ratio value is 90%.

[0016] In a preferred embodiment, the projection of the reflective plate on the lower surface of the protrusion completely covers the luminous area, or the projection of the reflective plate on the lower surface of the protrusion completely falls into the luminous area.

[0017] In a preferred embodiment, the length of the projection of the reflector on the lower surface of the protrusion is substantially the same as the length of the luminous area, and the width of the projection of the reflector on the lower surface of the protrusion is substantially the same as the width of the luminous area.

[0018] In a preferred embodiment, the projection of the reflective plate on the lower surface of the protrusion has two opposite projected long sides and projected wide sides located on both sides of the projected long sides, the boundary of the luminous area is close to the projected long sides or at least partially overlaps with the projected long sides, and / or the boundary of the luminous area is close to the projected wide sides or at least partially overlaps with the projected wide sides.

[0019] In a preferred embodiment, the boundary of the luminous area includes two opposite long sides of the area and a wide side of the area located on both sides of the long side of the area, the projected long side is close to the long side of the area or coincides with the long side of the area, and the projected wide side is close to the wide side of the area or coincides with the wide side of the area.

[0020] In a preferred embodiment, when the reflector is located in the reflecting position, the angle between the reflector and the portion of the lower surface having the luminous area is not greater than a first preset angle and not less than a second preset angle, the first preset angle is less than 90 degrees, and the second preset angle is greater than 0 degrees; or, when the reflector is located in the reflecting position, the angle between the reflector and the portion of the lower surface having the luminous area is between half of the angle between the lower surface and the vertical plane minus 15° and half of the angle between the lower surface and the vertical plane plus 15°.

[0021] In a preferred embodiment, the first preset angle is between 50° and 65°, and / or the second preset angle is between 25° and 50°.

[0022] In a preferred embodiment, the front panel of the longitudinal cavity portion has a smoking port, and the reflective plate is a smoke collecting plate, which is located at the smoking port. The smoke collecting plate has relative inner and outer surfaces, and the inner surface is closer to the smoking port than the outer surface. When the smoke collecting plate is located in the reflecting position, the inner surface is used to collect smoke, and the outer surface is used to reflect the preset pattern formed by the light-emitting area.

[0023] In a preferred embodiment, the position of the cigarette collecting plate further includes a closed position. When the cigarette collecting plate is located in the closed position, the smoking port is covered.

[0024] In a preferred embodiment, the front panel of the longitudinal cavity portion also has a condensation plate. Along the flow direction of the smoke, the smoke is condensed by the condensation plate and flows into the smoking port. The condensation plate has an upper end and a lower end. A light source is provided in the space above the condensation plate. The light emitted by the light source can be injected from the upper end of the condensation plate and emitted from the lower end of the condensation plate.

[0025] In a preferred embodiment, the lower end of the condensation plate is a rough end, and the light emitted by the light source is scattered at the rough end to form a light-emitting end.

[0026] In a preferred embodiment, a light-emitting element is provided in the transverse cavity portion, and the inner side of the lower surface of the protrusion or the light-emitting element has a preset pattern layer. Along the propagation direction of the light, the light emitted by the light-emitting element passes through the preset pattern layer and forms a light-emitting area with the preset pattern on the lower surface of the protrusion.

[0027] In a preferred embodiment, the preset pattern layer includes a silk screen layer and / or a color spray layer and / or a film layer. When the preset pattern layer is the color spray layer, the preset pattern layer is formed by spraying through a spraying process.

[0028] In a preferred embodiment, a light-emitting element with a preset pattern is disposed in the transverse cavity portion, and light emitted by the light-emitting element with a preset pattern forms the preset pattern in the light-emitting area.

[0029] In a preferred embodiment, the protrusion further has a soft light layer, and the light emitted by the light-emitting element passes through the preset pattern layer and the soft light layer to form a light-emitting area with the preset pattern on the lower surface of the protrusion.

[0030] In a preferred embodiment, a light-emitting element is provided in the transverse cavity portion, and the inner side of the lower surface of the protrusion or the light-emitting element has a preset pattern layer, and the preset pattern layer is provided with a plurality of light point transmission areas and / or a plurality of light spot transmission areas and / or a plurality of light segment transmission areas arranged at intervals, and the preset pattern is a plurality of light points and / or a plurality of light spots and / or a plurality of light segments arranged at intervals.

[0031] In a preferred embodiment, a touch button pattern is provided on the reflective plate, and the preset pattern projected on the reflective plate does not overlap with the touch button pattern.

[0032] In a preferred embodiment, the reflective plate is arranged in the longitudinal cavity portion.

[0033] In a preferred embodiment, the reflective plate is at least a portion of the front panel of the longitudinal cavity portion, and can move in a direction away from the front panel to the reflective position.

[0034] In a preferred embodiment, the reflective plate is arranged in the transverse cavity portion.

[0035] In a preferred embodiment, the reflective plate can move toward the space below the transverse cavity portion and move to the reflecting position.

[0036] In a preferred embodiment, the reflective plate is rotatably disposed in the transverse cavity portion, and the reflective plate can be rotated from the transverse cavity portion to the longitudinal cavity portion and rotated to the reflecting position.

[0037] In a preferred embodiment, the lower cavity is a thin lower cavity, which has a front panel and a rear panel that are relatively arranged and do not exceed a first preset spacing distance. The thin lower cavity also has a left panel and a right panel that are relatively arranged and do not exceed a second preset spacing distance. The front panel is connected to both the left panel and the right panel, and the rear panel is connected to both the left panel and the right panel.

[0038] In a preferred embodiment, the first preset spacing distance is between 40 mm and 160 mm, and the second preset spacing distance is between 890 mm and 900 mm.

[0039] In a preferred embodiment, the front panel of the thin lower cavity is an inclined panel with a preset angle to the vertical direction, and the preset angle is not greater than 20° and not less than 8°.

[0040] In a preferred embodiment, the distance between the top of the front panel of the thin lower cavity and the top of the rear panel is not less than 2 times the distance between the bottom of the front panel of the thin lower cavity and the bottom of the rear panel, and / or the distance between the top of the front panel of the thin lower cavity and the top of the rear panel is not more than 3 times the distance between the bottom of the front panel of the thin lower cavity and the bottom of the rear panel.

[0041] In a preferred embodiment, the distance between the bottom of the front panel of the thin lower cavity and the bottom of the rear panel is 50 mm-60 mm, and the distance between the top of the front panel of the thin lower cavity and the top of the rear panel is 120 mm-140 mm.

[0042] In a preferred embodiment, the range hood is a side-suction range hood, the lower cavity is a side-suction type lower cavity, the upper part of the side-suction type lower cavity is the transverse cavity part, and the lower part of the side-suction type lower cavity is the longitudinal cavity part.

[0043] The utility model provides a range hood, which includes: a fan box and a lower cavity, the fan box having a protrusion protruding from the lower cavity, the lower surface of the protrusion having a luminous area that can form a preset pattern; the range hood or the lower cavity has a reflector, the position of the reflector includes at least a reflection position, when the reflector is located at the reflection position, at least a portion of the reflector is located below the protrusion, reflecting the preset pattern formed by the luminous area.

[0044] In a preferred embodiment, when the reflective plate is located at the reflecting position, the reflective plate extends downward and forward in a direction away from the range hood.

[0045] In a preferred embodiment, the reflective plate is disposed at the upper portion or the middle portion of the lower cavity.

[0046] In a preferred embodiment, the lower cavity has a smoking port, the reflective plate is a smoke collecting plate, the smoke collecting plate is located at the smoking port, and the angle between the smoke collecting plate and the horizontal plane is no more than 45°.

[0047] In a preferred embodiment, the lower cavity has a smoking port, and the reflective plate is a smoke collecting plate, which is located at the smoking port. The smoke collecting plate has relative inner and outer surfaces, and the inner surface is closer to the smoking port than the outer surface. When the smoke collecting plate is located in the reflecting position, the inner surface is used to collect smoke, and the outer surface is used to reflect the preset pattern formed by the light-emitting area.

[0048] In a preferred embodiment, the position of the cigarette collecting plate further includes a closed position. When the cigarette collecting plate is located in the closed position, the smoking port is covered.

[0049] In a preferred embodiment, the lower cavity is a thin lower cavity, and the thin lower cavity has a front panel and a rear panel that are relatively arranged and do not exceed a first preset spacing distance. The thin lower cavity also has a left panel and a right panel that are relatively arranged and are not less than a second preset spacing distance. The front panel is connected to both the left panel and the right panel, and the rear panel is connected to both the left panel and the right panel. The protrusion is protruded compared to the front panel of the thin lower cavity. The first preset spacing distance is between 40mm-160mm, and the second preset spacing distance is between 890mm-900mm.

[0050] In a preferred embodiment, the fan box has a light-emitting element, the light-emitting element has a preset pattern layer or the inner side of the lower surface of the protrusion has a preset pattern layer, along the propagation direction of the light, the light emitted by the light source of the light-emitting element passes through the preset pattern layer, and forms a light-emitting area with the preset pattern on the lower surface of the protrusion, the preset pattern layer includes a silk-screen layer and / or a color spray layer and / or a film layer, when the preset pattern layer is the color spray layer, the preset pattern layer is formed by spraying through a spray painting process.

[0051] In a preferred embodiment, the lower surface of the protrusion has a soft light layer or the light-emitting element has a soft light layer, and the light emitted by the light-emitting element passes through the preset pattern layer and the soft light layer to form a light-emitting area with the preset pattern on the lower surface of the protrusion.

[0052] In a preferred embodiment, when the reflector is located in the reflecting position, the angle between the reflector and at least the portion of the lower surface having the luminous area is not greater than a first preset angle and not less than a second preset angle, the first preset angle is between 50° and 65°, and the second preset angle is between 25° and 50°; or, when the reflector is located in the reflecting position, the angle between the reflector and the portion of the lower surface having the luminous area is between half of the angle between the lower surface and the vertical plane ±10° minus 15° to half of the angle between the lower surface and the vertical plane plus 15°.

[0053] In a preferred embodiment, when the reflective plate is located at the reflecting position, the reflective plate is arranged horizontally or substantially horizontally.

[0054] In a preferred embodiment, at least a portion of the lower surface having the light emitting area is tilted upward in a direction from the back to the front.

[0055] In a preferred embodiment, when the reflective plate is located at the reflecting position, an angle between at least a portion of the lower surface having the luminous area and the reflective plate is greater than 0 and not greater than 30°.

[0056] In a preferred embodiment, the reflective plate is disposed in the middle or lower portion of the lower cavity.

[0057] In a preferred embodiment, when the reflector is located at the reflecting position, at least a portion of the reflector is located below the luminous area, and a projection of the reflector on the lower surface of the protrusion overlaps with the luminous area.

[0058] The ratio of the area of ​​the overlapping region to the area of ​​the light-emitting region is not less than a first preset ratio value, and the first preset ratio value is between 20% and 100%.

[0059] Alternatively, the ratio of the area of ​​the overlapping region to the area of ​​the light-emitting region is less than a second preset ratio value, and the second preset ratio value is between 60% and 100%.

[0060] Alternatively, the ratio of the area of ​​the overlapping region to the area of ​​the light-emitting region is not less than a first preset ratio value and less than a second preset ratio value, the first preset ratio value is 30%, and the second preset ratio value is 90%.

[0061] In a preferred embodiment, the projection of the reflective plate on the lower surface of the protrusion completely covers the luminous area, or the projection of the reflective plate on the lower surface of the protrusion completely falls into the luminous area;

[0062] Alternatively, the length of the projection of the reflector on the lower surface of the protrusion is substantially the same as the length of the light-emitting area, and the width of the projection of the reflector on the lower surface of the protrusion is substantially the same as the width of the light-emitting area;

[0063] Alternatively, the projection of the reflective plate on the lower surface of the protrusion has two opposite projected long sides and projected wide sides located on both sides of the projected long sides, the boundary of the luminous area is close to the projected long sides or at least partially overlaps with the projected long sides, and / or the boundary of the luminous area is close to the projected wide sides or at least partially overlaps with the projected wide sides.

[0064] The utility model provides a range hood, which is a top-suction range hood, comprising: a fan box and a lower cavity, the range hood or the lower cavity having a reflector, the position of the reflector including at least a reflection position, the lower surface of the lower cavity having a light-emitting area capable of forming a preset pattern, when the reflector is located at the reflection position, at least a portion of the reflector is located below the light-emitting area, reflecting the preset pattern formed by the light-emitting area, the lower cavity having a light-emitting element, the inner side of the lower surface of the lower cavity or the light-emitting element having a preset pattern layer, along the propagation direction of the light, the light emitted by the light-emitting element passes through the preset pattern layer to form a light-emitting area with the preset pattern on the lower surface of the lower cavity, the preset pattern layer comprising a silk-screen layer and / or a color-sprayed layer and / or a film layer.

[0065] The features and advantages of this utility model are:

[0066] Under the action of the fan box, the oil smoke can be sucked into the lower cavity and continue to flow to the fan box. When the user is cooking, the light emitted by the luminous area can form a preset pattern. The preset pattern can be a figure with a preset shape after patterning the light emitted by the light-emitting element, such as a figure formed by the light of the light-emitting element passing through the preset pattern layer, which is similar to a painting that wants to be shown to the user; the preset pattern can also be formed by changing the light-emitting element, such as making the light-emitting element itself into a preset shape, and the light emitted by the light-emitting element forms a preset pattern. The light emitted by the luminous area propagates downward and is reflected by the reflector located at the reflection position. It can be transmitted to the user, so that the user can see the preset pattern from the reflector. The preset pattern can create a sense of atmosphere on the reflector. The preset atmosphere pattern such as that formed by the luminous area is presented to the user through the reflector 60, which is convenient for creating a lighting atmosphere in front of the user's field of vision. BRIEF DESCRIPTION OF THE DRAWINGS

[0067] In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the following briefly introduces the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0068] Figure 1 This is a structural diagram of an embodiment of a range hood provided by the present invention;

[0069] Figure 2 This is a schematic diagram of the range hood reflector provided by the present invention at an angle;

[0070] Figure 3 for Figure 2 Left view of;

[0071] Figure 4 This is a schematic diagram of the range hood reflector provided by the present invention at another angle;

[0072] Figure 5 for Figure 4 Left view of;

[0073] Figure 6 A cross-sectional view of the range hood provided by the present utility model;

[0074] Figure 7 for Figure 6 A local enlarged view of point A in FIG;

[0075] Figure 8 This is a schematic structural diagram of the condensing plate in the range hood provided by the present invention;

[0076] Figure 9 for Figure 6 A local enlarged view of point B in FIG;

[0077] Figure 10 A schematic structural diagram of a side-suction range hood provided by the present invention;

[0078] Figure 11 This is a structural schematic diagram of another embodiment of the range hood provided by the utility model;

[0079] Figure 12 This is a structural schematic diagram of another embodiment of the range hood provided by the utility model;

[0080] Figure 13 This is a structural schematic diagram of another embodiment of the range hood provided by the utility model;

[0081] Figure 14 This is a structural schematic diagram of another embodiment of the range hood provided by the utility model.

[0082] Description of Figure Numbers:

[0083] 11. Fan box;

[0084] 12. Lower cavity; 120. Side-suction lower cavity; 121. Horizontal cavity portion; 122. Longitudinal cavity portion;

[0085] 13. Front panel; 14. Smoke outlet; 15. Lower smoke outlet;

[0086] 20. protrusion; 21. lower surface of the protrusion;

[0087] 30. Luminous area; 31. Preset pattern;

[0088] 40. Light-emitting element; 41. Lamp beads; 42. Light guide column;

[0089] 51. Preset pattern layer; 52. Soft light layer; 53. Transparent part; 531. Upward inner surface;

[0090] 60. Reflector;

[0091] 61, smoke collecting plate; 611, outer surface; 612, inner surface;

[0092] 71. Condensation plate; 711. Rough end; 72. Light source; 73. Oil guide plate;

[0093] 81. Front and back direction; 82. Left and right direction. DETAILED DESCRIPTION

[0094] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0095] The utility model provides a range hood, such as Figures 1-6 As shown, the range hood includes: a fan box 11 and a lower cavity 12, the lower cavity 12 and the fan box 11 are arranged in sequence along the flow direction of the smoke; the lower cavity 12 includes a connected transverse cavity portion 121 extending along the transverse direction and a longitudinal cavity portion 122 extending along the longitudinal direction, and the longitudinal cavity portion 122 is located below the transverse cavity portion 121; the transverse cavity portion 121 has a protrusion 20 protruding from the front panel 13 of the longitudinal cavity portion 122, and the lower surface 21 of the protrusion has a luminous area 30 that can form a preset pattern 31; the lower cavity 12 or the range hood has a reflector 60, the position of the reflector 60 includes at least a reflection position, when the reflector 60 is in the reflection position, at least part of the reflector 60 is located below the protrusion 20, reflecting the preset pattern 31 formed by the luminous area 30.

[0096] Under the action of the fan housing 11, cooking fumes can be drawn into the lower cavity 12 and continue to flow toward the fan housing 11. When the user is in front of the lower cavity 12 while cooking, the light emitted from the luminous area 30 on the lower surface 21 of the protrusion can form a predetermined pattern 31. The predetermined pattern 31 can be a patterned image of a predetermined shape formed by patterning the light emitted by the light-emitting element 40. For example, the pattern formed by the light from the light-emitting element 40 passing through the predetermined pattern layer 51 resembles a painting intended for display to the user. The predetermined pattern 31 can also be formed by modifying the light-emitting element 40, such as by shaping the light-emitting element 40 itself into a predetermined shape, so that the light emitted by the light-emitting element 40 forms the predetermined pattern 31. The light emitted from the luminous area 30 propagates downward and, after being reflected by the reflector 60 at the reflection position, is transmitted to the user, allowing the user to see the predetermined pattern 31 on the reflector 60. The predetermined pattern 31 can create an atmosphere on the reflector 60. The predetermined atmosphere pattern, such as that formed by the luminous area 30, is presented to the user through the reflector 60, facilitating the creation of a lighting atmosphere in the user's field of vision.

[0097] The setting position of the reflector 60 is explained as follows:

[0098] In different embodiments, the reflector 60 can be disposed on the range hood or the lower cavity 12. When the reflector 60 is disposed on the range hood, the reflector 60 can be disposed on the fan box 11 or other components of the range hood. For example, one end of the reflector 60 is mounted on the fan box 11, and at least a portion of the reflector 60 can extend below the transverse cavity portion 121 and be located in front of the front panel 13, thereby reflecting light emitted from the light-emitting area 30. One end of the reflector 60 can be fixed to the fan box 11 or can be rotatably mounted on the fan box 11.

[0099] When the reflective plate 60 is set in the lower cavity 12, the reflective plate 60 can be set in the horizontal cavity portion 121 or in the longitudinal cavity portion 122. For example, one end of the reflective plate 60 can be installed in the horizontal cavity portion 121 through the installation structure, and one end of the reflective plate 60 can also be installed in the longitudinal cavity portion 122. The specific position of the reflective plate 60 is not limited.

[0100] When the reflector 60 is arranged in the transverse cavity portion 121, in one embodiment, the reflector 60 can be arranged close to the transverse cavity portion 121 or be a part of the transverse cavity portion 121 or be arranged at an angle to the transverse cavity portion 121, and / or the reflector 60 can move toward the space below the transverse cavity portion 121 and move to the reflecting position. Specifically, the reflector 60 is rotatably arranged in the transverse cavity portion 121, for example, the reflector 60 can be rotated from the transverse cavity portion 121 to the longitudinal cavity portion 122 and rotated to the reflecting position. More specifically, the upper end of the reflector 60 can be rotatably connected to the transverse cavity portion 121 via a rotating shaft, and the rotating shaft is installed in the transverse cavity portion 121. When the reflector 60 is in the initial position, the reflector 60 is close to the transverse cavity portion 121 or is a part of the transverse cavity portion 121, and the reflector 60 can rotate from the initial position to the reflecting position around the rotating shaft.

[0101] When the reflector 60 is disposed in the longitudinal cavity portion 122, in one embodiment, the reflector 60 may be at least a portion of the front panel 13 of the longitudinal cavity portion 122 and may be movable to a reflective position away from the front panel 13. For example, the reflector 60 may have two positions. When the reflector 60 is in one position, the reflector 60 may constitute the front panel of the longitudinal cavity portion 122. The reflector 60 may also be movable from the aforementioned position away from the longitudinal cavity portion 122 to a reflective position. In another embodiment, the reflector 60 can also be arranged close to the longitudinal cavity portion 122 or arranged at an angle to the longitudinal cavity portion 122. When the reflector 60 is arranged close to the longitudinal cavity portion 122, specifically, one end of the reflector 60 can be rotatably mounted on the front panel 13 or other components of the lower cavity 12; when the reflector 60 is arranged at an angle to the longitudinal cavity portion 122, one end of the reflector 60 can be rotatably mounted on the front panel 13 or other components of the lower cavity 12, or it can be fixed in the reflecting position.

[0102] In one embodiment, when the reflector 60 is in the reflective position, it extends downward and forward from the front panel 13, away from the longitudinal cavity portion 122, and reflects the preset pattern 31 emitted from the luminous area 30 into the space below. Light emitted from the luminous area 30 travels downward, and the reflector 60 in the reflective position reflects the light forward, ensuring that the user in front of the lower cavity 12 can see the preset pattern 31 through the reflector 60. Furthermore, when cooking, the reflector 60 is positioned directly in front of the user, ensuring that the user can reliably see the preset pattern 31. On the other hand, the reflector 60 uses its outer surface 611 to reflect the light emitted by the luminous area 30. The outer surface 611 of the reflector 60 is away from the stove, and the oil smoke moving upward from the stove is blocked by the light-emitting panel. The outer surface 611 of the light-emitting panel and the space above it are less affected by the oil smoke, which is conducive to ensuring that the preset pattern 31 creates an atmosphere after being emitted by the reflector 60; moreover, the outer surface 611 of the reflector 60 is less exposed to oil smoke and is not easy to form oil stains, ensuring that the reflector 60 can still reliably reflect the preset pattern 31 after long-term use.

[0103] The reflector 60 can be fixed relative to the lower cavity 12, that is, the reflector 60 is fixed in the reflecting position. The reflector 60 can also be movably arranged relative to the lower cavity 12, with the reflector 60 having multiple positions and being able to move to the reflecting position. The movement of the reflector 60 can be rotation, movement, curvilinear motion, or a combination of multiple movement modes. When the reflector 60 is in the reflecting position, the reflector 60 can be located entirely in front of the front panel 13, or it can partially extend in front of the front panel 13, while still partially located within the lower cavity 12 or at other locations. When the reflector 60 is located entirely in front of the front panel 13, the reflector 60 can be in contact with the front panel 13, or it can be spaced apart from the front panel 13. There can be one or more reflecting positions. When there are multiple reflecting positions, the user can adjust the reflector 60 to move to any reflecting position.

[0104] In one embodiment, when the reflector 60 is in the reflecting position, at least a portion of the reflector 60 is located below the luminous area 30 . Light emitted from the luminous area 30 propagates downward and can propagate forward after being reflected by the reflector 60 .

[0105] Furthermore, the projection of the reflector 60 on the lower surface 21 of the protrusion has an overlapping area with the light emitting area 30, as shown in FIG. Figure 2 and Figure 4As shown, when the reflector 60 is in the reflecting position, the reflector 60 is projected onto the lower surface 21 of the protrusion in a direction perpendicular to the lower surface 21 of the protrusion. The projection of the reflector 60 and the light-emitting area 30 have an overlapping area. The preset pattern 31 emitted from the overlapping area of ​​the light-emitting area 30 can be transmitted downward to the reflector 60 in a direction perpendicular to the lower surface 21 of the protrusion, and reflected by the reflector 60 so as to be seen by the user located in front of the lower cavity 12.

[0106] The multiple elements in the preset pattern 31 are distributed according to the preset positions, and the elements cooperate to create an atmosphere. By ensuring that the user can see all or most of the preset pattern 31, the completeness of the preset pattern 31 is improved, thereby enhancing the atmosphere effect.

[0107] In one embodiment, the lower surface 21 of the protrusion may be arranged along a horizontal plane, and the direction perpendicular to the lower surface 21 of the protrusion is correspondingly a plumb direction.

[0108] In one embodiment, the ratio of the area of ​​the overlapping region to the area of ​​the light-emitting region 30 is not less than a first preset ratio value, ensuring that the overlapping region accounts for a sufficiently high proportion of the light-emitting region 30, thereby ensuring that the preset pattern 31 emitted by the light-emitting region 30 is completely visible to the user after being reflected by the reflector 60. Preferably, the first preset ratio value is between 20% and 100%, that is, the first preset ratio value can be any value between 20% and 100%. For example, if the first preset ratio value is equal to 20%, the ratio of the area of ​​the overlapping region to the area of ​​the light-emitting region 30 is not less than 20%; if the first preset ratio value is equal to 45%, the ratio of the area of ​​the overlapping region to the area of ​​the light-emitting region 30 is not less than 45%; if the first preset ratio value is equal to 70%, the ratio of the area of ​​the overlapping region to the area of ​​the light-emitting region 30 is not less than 70%; and if the first preset ratio value is equal to 100%, the ratio of the area of ​​the overlapping region to the area of ​​the light-emitting region 30 is not less than 100%.

[0109] In one embodiment, the ratio of the area of ​​the overlapping region to the area of ​​the light-emitting region 30 is less than a second predetermined ratio value, which is between 60% and 100%. This ensures that not all light emitted from the light-emitting region 30 is reflected by the reflector 60, and that some light can illuminate the stovetop to provide lighting. The second predetermined ratio value can be any value between 60% and 100%.

[0110] Furthermore, the ratio of the area of ​​the overlapping area to the area of ​​the luminous area 30 is not less than the first preset ratio value and less than the second preset ratio value, the first preset ratio value is 30%, and the second preset ratio value is 90%, thereby ensuring that the user can see a relatively complete and clear preset pattern 31, and can also serve as lighting, ensuring that the user can clearly see the stove and pots below when cooking.

[0111] In one embodiment, the projection of the reflector 60 on the lower surface 21 of the protrusion completely covers the light-emitting area 30, so that the preset pattern 31 emitted by the light-emitting area 30 can all be transmitted downward to the reflector 60 in a direction perpendicular to the lower surface 21 of the protrusion, and reflected by the reflector 60 to the user located in front of the lower cavity 12, so that the user can see the complete preset pattern 31.

[0112] In another embodiment, the projection of the reflector 60 on the lower surface 21 of the protrusion falls entirely into the luminous area 30, so that the preset pattern 31 emitted by the luminous area 30 can completely cover the reflector 60. In this way, the reflector 60 seen by the user is completely covered with the preset pattern 31, enhancing the sense of atmosphere.

[0113] In some embodiments, the light emitting area 30 is an area formed by the boundary of the preset pattern 31, for example Figure 1 As shown, the preset pattern 31 includes a pattern of stars and dots, and the rectangular area formed by the boundaries of these patterns is the luminous area 30; or, the preset pattern 31 is a cloud, and the luminous area 30 is a cloud-like area.

[0114] In one embodiment, the length of the projection of the reflector 60 on the lower surface 21 of the protrusion is substantially the same as the length of the luminous area 30, and the width of the projection of the reflector 60 on the lower surface 21 of the protrusion is substantially the same as the width of the luminous area 30. This ensures that when a user looks at the reflector 60, the reflector 60 is substantially covered by the preset pattern 31, and the preset pattern 31 is substantially complete. The user sees a high degree of completeness of the preset pattern 31, thereby improving the atmosphere created. The aforementioned "substantially the same" can specifically mean being the same or having a difference between the two within a preset range. The preset range can be: the difference between the two is no greater than a predetermined length value, for example, the predetermined length value can be any value between 0 and 10 cm; or the ratio of the difference between the two to the smaller of the two is no greater than a predetermined ratio, for example, the predetermined ratio can be any ratio between 0 and 40%.

[0115] In one embodiment, the width of the projection and the width of the light-emitting area 30 are respectively the dimensions of the front-to-back direction 81 on the lower surface 21 of the protrusion; the length of the projection and the length of the light-emitting area 30 are respectively the dimensions of the left-to-right direction 82 on the lower surface 21 of the protrusion.

[0116] In one embodiment, the projection of the reflector 60 on the lower surface 21 of the protrusion has two opposing projected long sides and projected wide sides located on either side of the projected long sides. The boundary of the luminous area 30 is close to or at least partially overlaps with the projected long sides, so that when the preset pattern 31 emitted by the luminous area 30 propagates downward in a direction perpendicular to the lower surface 21 of the protrusion, the boundary of the preset pattern 31 is close to or overlaps with the long sides of the reflector 60, facilitating a user to see a relatively complete preset pattern 31 on the reflector 60. In another embodiment, the boundary of the luminous area 30 is close to or at least partially overlaps with the projected wide sides, so that when the preset pattern 31 emitted by the luminous area 30 propagates downward in a direction perpendicular to the lower surface 21 of the protrusion, the boundary of the preset pattern 31 is close to or overlaps with the wide sides of the reflector 60, facilitating a user to see a relatively complete preset pattern 31 on the reflector 60.

[0117] Furthermore, the boundaries of the luminous area 30 include two opposing long sides and wide sides located on either side of the long sides. The projected long sides are adjacent to or coincide with the long sides, and the projected wide sides are adjacent to or coincide with the wide sides. This ensures that when the preset pattern 31 emitted from the luminous area 30 propagates downwardly in a direction perpendicular to the lower surface 21 of the protrusion, the long sides of the preset pattern 31 are adjacent to or coincide with the long sides of the reflector 60, and the wide sides of the preset pattern 31 are adjacent to or coincide with the wide sides of the reflector 60. This facilitates the user's viewing of the entire preset pattern 31 on the reflector 60 and ensures that the reflector 60 is substantially entirely covered by the preset pattern 31, thereby enhancing the sense of atmosphere. Specifically, the aforementioned proximity can be achieved by ensuring that the distance between the two is no greater than a predetermined length value, for example, the predetermined length value can be any value between 0 and 5 cm.

[0118] In one embodiment, the projected wide side and the area wide side are edges on the lower surface 21 of the protrusion in the front-to-back direction 81, respectively; the projected long side and the area long side are edges on the lower surface 21 of the protrusion in the left-to-right direction 82, respectively. The projection of the reflector 60 on the lower surface 21 of the protrusion and the luminous area 30 are both rectangular or substantially rectangular.

[0119] In one embodiment, when the reflector 60 is in the reflective position, the angle β between the reflector 60 and the portion of the lower surface having the luminous area 30 is no greater than a first predetermined angle and no less than a second predetermined angle. The predetermined pattern 31 emitted by the luminous area 30 is reflected by the reflector 60 and propagates forward. While cooking, users typically stand in front of the lower cavity 12, with their eyes generally above the reflector 60. Limiting the angle β helps ensure that the user can see the predetermined pattern 31 through the reflector 60. Preferably, the first predetermined angle is less than 90 degrees, and the second predetermined angle is greater than 0 degrees. For example, the first predetermined angle is 85 degrees and the second predetermined angle is 5 degrees; alternatively, the first predetermined angle is 60 degrees and the second predetermined angle is 15 degrees. Examples are not provided herein.

[0120] In one embodiment, the first preset angle is between 50° and 65°, and the first preset angle can be any value between 50° and 65°. The larger the angle β when the reflector 60 is in the reflecting position, the lower the height at which the preset pattern 31 propagates forward after being reflected by the reflector 60. Angle β not greater than the first preset angle prevents the user from having to be at an excessively low height to see a relatively complete preset pattern 31, making it easier for the user to see the preset pattern 31 through the reflector 60 while cooking.

[0121] In one embodiment, the second preset angle is between 25° and 50°, and the second preset angle can be any value between 25° and 50°. The smaller the angle β when the reflector 60 is in the reflecting position, the higher the height at which the preset pattern 31 propagates forward after being reflected by the reflector 60. The angle β is not less than the second preset angle, which can avoid the user's eyes having to be at too high a height to see a relatively complete preset pattern 31, making it easier for the user to see the preset pattern 31 through the reflector 60 when cooking.

[0122] In another embodiment, when the reflector 60 is in the reflective position, the angle between the reflector 60 and the portion of the lower surface having the luminous area 30 is between half the angle between the lower surface and a vertical plane minus 15° and half the angle between the lower surface and a vertical plane plus 15°. By ensuring that the angle between the reflector 60 and the portion of the lower surface having the luminous area 30 is no less than half the angle between the lower surface and a vertical plane minus 15°, the user can easily see the preset pattern 31 on the reflector 60, creating a good atmosphere, and can also facilitate user control of the touch button graphics or buttons provided on the reflector 60. By ensuring that the angle between the reflector 60 and the portion of the lower surface having the luminous area 30 is no greater than half the angle between the lower surface and a vertical plane plus 15°, the user can easily see the preset pattern 31 on the reflector 60, creating a good atmosphere, and can also effectively trap smoke when the reflector 60 serves as a smoke trap 61. Preferably, the angle between the reflective plate 60 and the portion of the lower surface having the light-emitting area 30 is half of the angle between the lower surface and the vertical plane.

[0123] Furthermore, the first preset angle is between 50° and 65°, and the second preset angle is between 25° and 50°, so that the user can see a relatively complete preset pattern 31 through the reflector 60 when cooking. Figure 2 and Figure 4 As shown, the angle β can be 40 degrees or 60 degrees.

[0124] In one embodiment, the front panel 13 of the longitudinal cavity portion 122 has a smoke outlet 14, and the reflector 60 is a smoke-collecting plate 61. The smoke-collecting plate 61 is located at the smoke outlet 14 and has an inner surface 612 and an outer surface 611 that oppose each other. The inner surface 612 is closer to the smoke outlet 14 than the outer surface 611. When the smoke-collecting plate 61 is in the reflective position, the inner surface 612 collects smoke, while the outer surface 611 reflects the preset pattern 31 formed by the luminous area 30. The smoke-collecting plate 61 not only collects smoke, guiding it toward the smoke outlet 14, but also serves as a reflector 60, allowing the user to see the preset pattern 31 on its outer surface 611. In other words, there is no need to set up a separate additional reflector 60. The outer surface 611 of the smoke collecting plate 61 of the range hood can be reused as the reflector 60. On the basis of ensuring the smoke absorption effect through the smoke collecting plate 61, the reflection of the preset pattern 31 such as the atmosphere pattern can be cleverly achieved. This is because, in order to achieve smoke collection, the smoke collecting plate 61 is extended forward relative to the lower cavity 12, but it is relatively abrupt from the user's perspective. The preset pattern 31 is emitted to the smoke collecting plate 61 by the light-emitting area 30, creating an atmosphere with a certain visual depth, which is conducive to improving the oppressive perception of the smoke collecting plate 61 that is abruptly set to the user. Figure 2As shown, when the smoke collecting plate 61 is located at the reflecting position, the upper surface of the smoke collecting plate 61 is its outer surface 611 , and the lower surface of the smoke collecting plate 61 is its inner surface 612 .

[0125] Furthermore, the smoke collecting plate 61 can move relative to the lower cavity 12, and the position of the smoke collecting plate 61 also includes a closed position. When the smoke collecting plate 61 is in the closed position, the smoke outlet 14 is blocked. The smoke collecting plate 61 is used to control the opening or closing of the smoke outlet 14 to regulate the smoke suction effect of the range hood.

[0126] In one embodiment, if Figure 6 As shown, the front panel 13 of the longitudinal cavity portion 122 also has a condensation plate 71. Along the flow direction of the smoke, the smoke condenses on the condensation plate 71 and flows into the smoking port 14. The condensation plate 71 has an upper end and a lower end. A light source 72 is provided in the space above the condensation plate 71. The light emitted by the light source 72 can enter from the upper end of the condensation plate 71 and be emitted from the lower end of the condensation plate 71. On the one hand, the condensation plate 71 plays the role of guiding and condensing the smoke. On the other hand, the light emitted by the light source 72 propagates in the condensation plate 71, forming a bright edge at the outline of the condensation plate 71. This bright edge cooperates with the preset pattern 31 reflected by the smoke collecting plate 61 to enhance the atmosphere effect.

[0127] Furthermore, the lower end of the condensation plate 71 is a rough end 711, such as Figure 6 and Figure 8 As shown, light emitted by light source 72 is scattered at roughened end 711 to form a luminous end. Light propagating through condenser plate 71 is scattered at roughened end 711, allowing the user to see a bright edge at the lower end of condenser plate 71. This scattering reduces the brightness of the bright edge to prevent glare from excessive brightness. Furthermore, this lower brightness facilitates the creation of a dual-ambiance lighting effect in conjunction with preset pattern 31. Specifically, roughened end 711 can appear as frosted glass.

[0128] In some embodiments, roughened ends 711 may be provided at other locations on the condenser plate 71 to form bright edges at corresponding locations. For example, the top and / or left and right ends of the condenser plate 71 may be provided with roughened ends 711 to form bright edges at the top and / or left and right ends of the condenser plate 71. To facilitate light penetration into the condenser plate 71 and to ensure that both ends of the bright edge at the bottom of the condenser plate 71 are visible, the top of the condenser plate 71 is preferably smooth.

[0129] In another embodiment, an oil guide plate 73 is provided, and a gap is provided between the oil guide plate 73 and the lower end surface of the condensation plate 71. The light emitted from the lower end of the condensation plate 71 can be reflected by the oil guide plate 73 and propagated forward through the gap, thereby being seen by the user to form a bright edge. In the case of providing the oil guide plate 73, the lower end of the condensation plate 71 does not need to be the rough end 711. Figure 6and Figure 9 As shown, the oil guide plate 73 is bent in shape, and at least part of the oil guide plate 73 extends to the bottom of the condensation plate 71. Part of its outer wall is located below the lower end surface of the condensation plate 71 and a gap is provided between the two. The oil guide plate 73 also serves to guide oil smoke or oil stains.

[0130] like Figure 6 As shown, the light source 72 can be arranged above the condensation plate 71. In one embodiment, the front panel 13 is further provided with a lower smoke outlet 15, and the condensation plate 71 is located between the smoke outlet 14 and the lower smoke outlet 15, and the upper end of the condensation plate 71 is close to the smoke outlet 14, and the lower end of the condensation plate 71 is close to the lower smoke outlet 15. After the light emitted by the light source 72 is transmitted through the condensation plate 71, a bright edge is formed on the upper edge of the lower smoke outlet 15. Preferably, as Figure 3 and Figure 5 As shown, the left-right dimension 82 of the lower smoke outlet 15 is smaller than the left-right dimension 82 of the condensation plate 71 , and the lower end of the condensation plate 71 further extends to the left and right sides of the lower smoke outlet 15 .

[0131] The lower chamber 12 includes a transverse chamber portion 121 and a longitudinal chamber portion 122. The transverse chamber portion 121 extends transversely, specifically, along a horizontal plane, or along a plane close to the horizontal plane. The longitudinal chamber portion 122 extends longitudinally, specifically, vertically, or along a direction close to the vertical plane. The transverse chamber portion 121 is connected to the fan housing 11. The two can be integral, directly connected, or connected via a pipe.

[0132] The transverse cavity portion 121 and the longitudinal cavity portion 122 are connected. Specifically, the transverse cavity portion 121 and the longitudinal cavity portion 122 can be separate structures or an integral structure. When the transverse cavity portion 121 and the longitudinal cavity portion 122 are an integral structure, the longitudinal cavity portion 122 is the entire portion of the lower cavity 12 extending in the longitudinal direction, and the transverse cavity portion 121 is the entire portion of the lower cavity 12 extending in the transverse direction.

[0133] The range hood is not limited to Figures 1-6 The range hood can also be a side suction range hood, such as Figure 10 As shown, the lower cavity 12 is a side-suction lower cavity 120 , the upper portion of the side-suction lower cavity 120 is a transverse cavity portion 121 , and the lower portion of the side-suction lower cavity 120 is a longitudinal cavity portion 122 . Figure 10In the side-suction range hood shown, the side-suction lower cavity 120 is an integral unit, with a transverse cavity portion 121 and a longitudinal cavity portion 122 forming an integral structure. The upper portion of the side-suction lower cavity 120 extends entirely in the transverse direction, serving as the transverse cavity portion 121; the lower portion of the side-suction lower cavity 120 extends entirely in the longitudinal direction, serving as the longitudinal cavity portion 122. The front portion of the transverse cavity portion 121 protrudes forward, serving as the protrusion 20.

[0134] The light-emitting area 30 in the present invention can form a preset pattern 31, which is different from the light-emitting surface formed by the light of the light-emitting element 40 in the related art without patterning. This type of light-emitting surface can only play a lighting role.

[0135] In one embodiment, if Figure 6 and Figure 7 As shown, a light-emitting element 40 is disposed within the transverse cavity portion 121. A predetermined pattern layer 51 is formed on the inner side of the lower surface of the protrusion 20 or on the light-emitting element 40. Light emitted from the light-emitting element 40 passes through the predetermined pattern layer 51 along the direction of light propagation, forming a light-emitting region 30 having a predetermined pattern 31 on the lower surface 21 of the protrusion. The predetermined pattern layer 51 defines a light-transmitting region with a predetermined pattern, so that light emitted from the light-emitting element 40 is partially blocked by the predetermined pattern layer 51, while light is partially transmitted through the predetermined pattern layer 51. As a result, the light emitted from the light-emitting region 30 forms the predetermined pattern 31.

[0136] The preset pattern layer 51 can be provided on the light emitting element 40. The light emitted by the light emitting element 40 passes through the preset pattern layer 51 to form the preset pattern 31. The preset pattern layer 51 can be provided on the inner side of the lower surface of the protrusion 20. The protrusion 20 includes an upper wall and a lower wall. A cavity is formed between the upper wall and the lower wall. The light emitting element 40 can be provided in the cavity. The downward outer surface of the lower wall is the lower surface of the protrusion 20, and the upward inner surface of the lower wall is the inner side of the lower surface of the protrusion 20. For example, Figure 7 As shown, at least a portion of the lower wall of the protrusion 20 is a transparent member 53 so that the light emitted by the light-emitting element 40 can propagate outward through the transparent member 53 . The preset pattern layer 51 can be provided on the upward inner surface 531 of the transparent member 53 .

[0137] The preset pattern layer 51 can be formed into a light-transmitting area with a pattern by silk-screen printing, color-spraying, or film application, so that the light emitted from the light-emitting area 30 forms the preset pattern 31. The preset pattern layer includes a silk-screen layer and / or a color-spraying layer and / or a film layer. Specifically, the preset pattern layer can include one of the silk-screen layer, the color-spraying layer, and the film layer, or a combination of at least two of the silk-screen layer, the color-spraying layer, and the film layer. When the preset pattern layer 51 is a color-spraying layer, the preset pattern layer 51 is formed by a spray-printing process, thereby facilitating the formation of a preset pattern 31 with a wide variety of colors and relatively complex shapes and lines.

[0138] Furthermore, the protrusion 20 also has a soft light layer 52. After the light emitted by the light-emitting element 40 passes through the preset pattern layer 51 and the soft light layer 52, it forms a light-emitting area 30 having a preset pattern 31 on the lower surface 21 of the protrusion. The light emitted by the light-emitting element 40 passes through the soft light layer 52, making the light more uniform and soft, ensuring that the preset pattern 31 creates a good atmosphere effect. There is no order in which the preset pattern layer 51 and the soft light layer 52 are arranged. The light emitted by the light-emitting element 40 can pass through the preset pattern layer 51 first and then the soft light layer 52, or it can pass through the soft light layer 52 first and then the preset pattern layer 51.

[0139] In one embodiment, the light emitting element 40 includes a lamp bead 41 and a light guide column 42. Figure 7 As shown, the light guide 42 can be planar and arranged along the light-emitting area 30. After the light emitted by the lamp beads 41 propagates through the light guide 42, it propagates downward in a planar shape, thereby passing through fewer lamp beads 41 to form a planar light source, which is beneficial for cost reduction. Preferably, the lamp beads 41 and the light guide 42 are both disposed on the protrusion 20, and the lamp beads 41 can be disposed on the periphery of the light guide 42.

[0140] The protrusion 20 is also provided with a transparent member 53, which can protect or support the light-emitting element 40, the preset pattern layer 51, and the soft light layer 52. The transparent member 53, the preset pattern layer 51, the soft light layer 52, and the light guide 42 can be distributed vertically, and the relative positions of the transparent member 53, the preset pattern layer 51, and the soft light layer 52 can be interchanged; the preset pattern layer 51 can be provided above or below the transparent member 53, or above or below the soft light layer 52. Moreover, the preset pattern layer 51 can be a separate structural member, or molded on the transparent member 53, the soft light layer 52, or the light guide 42.

[0141] Preferably, the transparent member 53 , the preset pattern layer 51 , the soft light layer 52 and the light guide column 42 are sequentially distributed from bottom to top, and the preset pattern layer 51 is formed on the upper surface of the transparent member 53 .

[0142] like Figure 7 As shown, the transparent member 53, the predetermined pattern layer 51, the soft light layer 52, and the light-emitting element 40 are all disposed on the protrusion 20. The lower surface 21 of the protrusion forms the light-emitting area 30. The transparent member 53, the predetermined pattern layer 51, the soft light layer 52, and the light-emitting element 40 are all or at least mostly located within the protrusion 20, making the structure more compact, saving space, and facilitating assembly. Part or all of the lower surface 21 of the protrusion constitutes the light-emitting area 30.

[0143] In one embodiment, a light-emitting element 40 is provided in the transverse cavity portion 121, and the inner side of the lower surface of the protrusion 20 or the light-emitting element 40 has a preset pattern layer 51. The preset pattern layer 51 is provided with a plurality of light point light-transmitting areas and / or a plurality of light spot light-transmitting areas and / or a plurality of light segment light-transmitting areas arranged at intervals. The preset pattern 31 is a plurality of light points and / or a plurality of light spots and / or a plurality of light segments arranged at intervals. After the light emitted by the light-emitting element 40 passes through the light point light-transmitting area, a light point can be formed; after the light emitted by the light-emitting element 40 passes through the light spot light-transmitting area, a light spot can be formed; after the light emitted by the light-emitting element 40 passes through the light spot light-transmitting area, a light spot can be formed; after the light emitted by the light-emitting element 40 passes through the light segment light-transmitting area, a light segment can be formed. Multiple light points and / or multiple light spots and / or multiple light segments cooperate to form a preset pattern 31 with an atmospheric sense. For example, light points or light spots of different sizes can form a depth of field, creating an atmospheric sense with a certain visual depth.

[0144] In another embodiment, a light-emitting element 40 having a preset pattern 31 is disposed within the transverse cavity portion 121. Light emitted by the light-emitting element 40 having the preset pattern 31 forms the preset pattern 31 within the light-emitting region 30. For example, the light-emitting element 40 may include one or more lamps, each of which may have a preset shape, or a combination of multiple lamps may form the preset pattern 31. For example, a plurality of lamps may be disposed within the transverse cavity, collectively forming the preset pattern 31. Light emitted by these lamps is precisely formed within the light-emitting region 30. In one specific embodiment, the preset pattern 31 is a cloud, and the multiple lamps are distributed in a cloud-like pattern, thereby forming a cloud pattern within the light-emitting region 30.

[0145] In one embodiment, the light-emitting element 40 itself can display a preset pattern 31. For example, the light-emitting element 40 can be a digital tube that displays the preset pattern 31. The preset pattern 31 can include numbers that can reflect operating status information such as the range hood's air volume or time. The light-emitting element 40 can also be a display screen, specifically an LED display screen or a liquid crystal display screen. The display screen can display patterns, videos, or text, and the content displayed on the display screen can be reflected by the reflector 60 and displayed.

[0146] In one embodiment, a touch button pattern is provided on the reflector 60, and the preset pattern 31 illuminated on the reflector 60 does not overlap with the touch button pattern. The user can control the range hood by touching the touch button pattern. The preset pattern 31 illuminated on the reflector 60 does not overlap with the touch button pattern to avoid interference with user control and to ensure that the preset pattern 31 is displayed more completely and clearly.

[0147] In one embodiment, the lower cavity 12 is a thin lower cavity, such as Figures 1-6As shown, the thin lower cavity has a front panel 13 and a rear panel that are relatively set and do not exceed a first preset spacing distance, and the thin lower cavity also has a left panel and a right panel that are relatively set and do not exceed a second preset spacing distance, and the left panel and the right panel are respectively located at Figure 3 The left and right sides of the front panel 13 are connected to both the left and right panels, and the rear panel is connected to both the left and right panels. The distance between the front panel 13 and the rear panel does not exceed the first preset spacing distance, so that the overall thickness of the thin lower cavity is small, which is convenient for installation and more beautiful. Moreover, the preset pattern 31 emitted by the light-emitting area 30 creates a sense of atmosphere, which can better prevent the user from feeling depressed. The distance between the left and right panels is not less than the second preset spacing distance, so that the distance between the left and right panels is large enough, that is, the left-right size of the thin lower cavity is large enough, so that the flow cross-section of the upward flow of smoke in the lower cavity 12 is large enough, and the left-right coverage of the lower cavity 12 is increased, so that the range hood can produce a strong ability to extract smoke when the overall thickness of the lower cavity 12 is small. Preferably, the first preset spacing distance is between 40 mm and 160 mm, that is, the first preset spacing distance can be any value between 40 mm and 160 mm, for example, the first preset spacing distance can be 40 mm, 42 mm, 50 mm, 60 mm, 65 mm, 80 mm, 100 mm, 120 mm, 151 mm, or 160 mm. The second preset spacing distance is between 890 mm and 900 mm, that is, the second preset spacing distance can be any value between 890 mm and 900 mm, for example, the second preset spacing distance can be 890 mm, 891 mm, 896 mm, 898 mm, or 900 mm.

[0148] The first preset spacing distance is the minimum distance between the front panel 13 and the rear panel. When the front panel 13 tilts forward from bottom to top, the minimum distance between the front panel 13 and the rear panel is located at the bottom.

[0149] In one embodiment, the distance between the top of the front panel 13 of the thin lower cavity and the top of the rear panel is not less than twice the distance between the bottom of the front panel 13 of the thin lower cavity and the bottom of the rear panel. By making the top of the thin lower cavity have sufficient thickness, it is beneficial to ensure that the top of the inner cavity of the thin lower cavity has a sufficiently large smoke flow cross-section, which is beneficial to ensuring the ability of the smoking port 14 to draw smoke; and, reducing the thickness of the bottom of the thin lower cavity is beneficial to reducing the overall size of the lower cavity, achieving an ultra-thin effect while ensuring the effect of drawing smoke, thereby reducing the feeling of oppression brought to users.

[0150] In one embodiment, the distance between the top of the front panel 13 of the thin lower cavity and the top of the rear panel is no more than three times the distance between the bottom of the front panel 13 of the thin lower cavity and the bottom of the rear panel, thereby ensuring that the bottom of the inner cavity of the thin lower cavity also has a sufficiently large smoke flow cross-section so that the smoke entering the lower smoking port 15 can flow upward smoothly, thereby ensuring the ability of the lower smoking port 15 to extract smoke.

[0151] Preferably, the distance between the top of the front panel 13 of the thin lower cavity and the top of the rear panel is not less than twice the distance between the bottom of the front panel 13 of the thin lower cavity and the bottom of the rear panel, and the distance between the top of the front panel 13 of the thin lower cavity and the top of the rear panel is not greater than three times the distance between the bottom of the front panel 13 of the thin lower cavity and the bottom of the rear panel, for example: the thickness of the top of the thin lower cavity is 2 times, 2.3 times, 2.7 times or 3 times the thickness of the bottom of the thin lower cavity.

[0152] Furthermore, the distance between the bottom of the front panel 13 of the thin lower cavity and the bottom of the rear panel is 50mm-60mm. Even if the thickness of the bottom of the thin lower cavity is relatively thin, the distance between the bottom of the front panel 13 and the bottom of the rear panel of the thin lower cavity is limited to no less than 50mm to avoid the distance between the bottom of the front panel 13 and the bottom of the rear panel being too small, thereby ensuring that the bottom of the inner cavity of the thin lower cavity has a sufficiently large flow cross-section to ensure that the smoke entering the lower smoke outlet 15 can flow smoothly to the fan box 11. Furthermore, the distance between the top of the front panel 13 of the thin lower cavity and the top of the rear panel is 120mm-140mm, ensuring that the smoke entering the thin lower cavity from the smoke outlet 14 and the lower smoke outlet 15 can flow smoothly to the fan box 11, thereby achieving the range hood that can both ensure the smoke extraction effect and achieve an ultra-thin effect, reducing the sense of oppression caused to the user by the top of the thin lower cavity.

[0153] Furthermore, the front panel 13 of the thin lower cavity is an inclined panel with a preset angle to the vertical direction, the preset angle is not greater than 20 degrees and not less than 8 degrees, and the smoking port 14 and the lower smoking port 15 are arranged on the inclined panel to ensure that the top and bottom of the inner cavity of the thin lower cavity have a sufficiently large flow cross-section for the smoke to flow upward, and the smoke gradually diffuses as it moves upward. Figure 3 As shown, the smoking port 14 is located in front of the upper smoking port 15, and the smoking port 14 can collect the diffused smoke.

[0154] The utility model also provides a range hood, which includes: a fan box 11 and a lower cavity 12, such as Figure 11-13As shown, the fan box 11 has a protrusion 20 that is protruding compared to the lower cavity 12, and the lower surface 21 of the protrusion has a luminous area 30 that can form a preset pattern 31; the range hood or the lower cavity 12 has a reflector 60, and the position of the reflector 60 includes at least a reflection position. When the reflector 60 is at the reflection position, at least part of the reflector 60 is located below the protrusion 20, reflecting the preset pattern 31 formed by the luminous area 30.

[0155] The light emitted from the light-emitting area 30 on the lower surface 21 of the protrusion can form a preset pattern 31. The preset pattern 31 can be a graphic having a preset shape that is formed by patterning the light emitted by the light-emitting element 40. For example, the graphic formed by the light from the light-emitting element 40 passing through the preset pattern layer 51 is similar to a painting that is intended to be displayed to the user. The preset pattern 31 can also be formed by modifying the light-emitting element 40, such as making the light-emitting element 40 itself into a preset shape, so that the light emitted by the light-emitting element 40 forms the preset pattern 31. The light emitted by the light-emitting area 30 propagates downward and, after being reflected by the reflector 60 located at the reflection position, can be transmitted to the user, allowing the user to see the preset pattern 31 from the reflector 60. The preset pattern 31 can create a sense of atmosphere on the reflector 60. The preset atmosphere pattern formed by the light-emitting area 30 is presented to the user through the reflector 60, thereby facilitating the creation of a lighting atmosphere in the user's field of vision.

[0156] The location of the reflector 60 has been explained above and will not be repeated here.

[0157] In one embodiment, when the reflector 60 is in the reflective position, it extends downward and forward, away from the range hood, to reflect the preset pattern 31 emitted by the light-emitting area 30 into the space below. Light emitted from the light-emitting area 30 travels downward, and the reflector 60 in the reflective position reflects the light forward, ensuring that the user in front of the lower cavity 12 can see the preset pattern 31 through the reflector 60. If touch button graphics or buttons are provided on the reflector 60, this facilitates user manipulation of the touch button graphics or buttons provided on the reflector 60 while also allowing the user to see the preset pattern 31 through the reflector 60 during manipulation.

[0158] Furthermore, the reflector 60 is disposed at the upper part or the middle part of the lower cavity 12 , so as to facilitate the user to see the preset pattern 31 through the reflector 60 , while preventing the reflector 60 from interfering with the stove or pot.

[0159] In one embodiment, the lower chamber 12 has a smoke outlet 14, and the reflective plate 60 is a smoke trap 61 located at the smoke outlet 14. The smoke trap 61 serves to trap smoke, directing it toward the smoke outlet 14. Furthermore, as a reflective plate 60, the user can see the preset pattern 31 on its outer surface 611. Preferably, the angle between the smoke trap 61 and the horizontal plane is no greater than 45° to ensure that smoke can flow smoothly into the smoke outlet 14, thereby achieving a good smoke trapping effect.

[0160] In one embodiment, the lower cavity 12 has a smoking port 14, and the reflective plate 60 is a smoke collecting plate 61. The smoke collecting plate 61 is located at the smoking port 14. The smoke collecting plate 61 has an inner surface 612 and an outer surface 611 relative to each other. The inner surface 612 is closer to the smoking port 14 than the outer surface 611. When the smoke collecting plate 61 is in the reflecting position, the inner surface 612 is used to collect smoke, and the outer surface 611 is used to reflect the preset pattern 31 formed by the light-emitting area 30, so that the range hood can be reused without the need for a separate additional reflective plate 60. The outer surface 611 of the smoke-collecting plate 61 serves as a reflector 60. While ensuring the smoke-absorbing effect through the smoke-collecting plate 61, it also cleverly reflects a preset pattern 31, such as an atmosphere pattern. This is because, in order to collect smoke, the smoke-collecting plate 61 extends forward relative to the lower cavity 12, which is relatively abrupt from the user's perspective. By emitting the preset pattern 31 toward the smoke-collecting plate 61 through the luminous area 30, an atmosphere with a certain visual depth is created, which helps to alleviate the oppressive perception of the smoke-collecting plate 61 that is abruptly positioned to the user. When the smoke-collecting plate 61 is in the reflective position, the upper surface of the smoke-collecting plate 61 is its outer surface 611, and the lower surface of the smoke-collecting plate 61 is its inner surface 612.

[0161] The smoke collecting plate 61 can be fixed, i.e., fixed in the reflective position. It can also be movable, with multiple positions and the ability to move to a reflective position. The movement of the smoke collecting plate 61 can include rotation, translation, curved motion, or a combination of these. In one embodiment, the positions of the smoke collecting plate 61 also include a closed position. When the smoke collecting plate 61 is in the closed position, the smoke outlet 14 is blocked.

[0162] In one embodiment, the lower cavity 12 is a thin lower cavity having a front panel 13 and a rear panel that are relatively arranged and separated by no more than a first predetermined distance. The thin lower cavity further has a left panel and a right panel that are relatively arranged and separated by no less than a second predetermined distance. The front panel 13 is connected to both the left and right panels, and the rear panel is connected to both the left and right panels. The protrusion 20 is arranged to protrude from the front panel 13 of the thin lower cavity. The distance between the front panel 13 and the rear panel does not exceed the first predetermined distance, resulting in a thin lower cavity having a smaller overall thickness, easier installation, and a more aesthetically pleasing appearance. Furthermore, the predetermined pattern 31 emitted by the luminous area 30 creates an atmosphere, which can better prevent users from feeling oppressed. The distance between the left side panel and the right side panel is not less than the second preset spacing distance, so that the distance between the left side panel and the right side panel is large enough, that is, the size of the thin lower cavity in the left and right directions 82 is large enough, so that the flow cross-section of the upward flow of smoke in the lower cavity 12 is large enough, and the coverage range of the left and right directions 82 of the lower cavity 12 is increased, so that the range hood can generate a stronger ability to extract smoke when the overall thickness of the lower cavity 12 is small.

[0163] Preferably, the first preset spacing distance is between 40 mm and 160 mm, that is, the first preset spacing distance can be any value between 40 mm and 160 mm, for example, the first preset spacing distance can be 40 mm, 42 mm, 50 mm, 60 mm, 65 mm, 80 mm, 100 mm, 120 mm, 151 mm, or 160 mm. The second preset spacing distance is between 890 mm and 900 mm, that is, the second preset spacing distance can be any value between 890 mm and 900 mm, for example, the second preset spacing distance can be 890 mm, 891 mm, 896 mm, 898 mm, or 900 mm.

[0164] The lower cavity 12 is a thin lower cavity, such as Figure 11-13 As shown, the protrusion 20 of the fan box 11 is longer than the protrusion of the lower cavity 12, and the area of ​​the lower surface 21 of the protrusion is also larger, so it is convenient to set a larger area of ​​the light-emitting area 30, and it is more convenient to use processes such as spray painting to construct a preset pattern 31 with a variety of colors and complex patterns, shapes and lines, so as to form a rich and diverse atmosphere effect.

[0165] In one embodiment, the fan box 11 has a light-emitting element 40, the light-emitting element 40 has a preset pattern layer 51 or the inner side of the lower surface 21 of the protrusion has a preset pattern layer 51, and along the propagation direction of the light, the light emitted by the light source of the light-emitting element 40 passes through the preset pattern layer 51 to form a light-emitting area 30 with a preset pattern 31 on the lower surface 21 of the protrusion.

[0166] The preset pattern layer 51 presets a light-transmitting area with a pattern, so that part of the light emitted by the light-emitting element 40 is blocked by the preset pattern layer 51 and part can pass through the preset pattern layer 51, so that the light emitted by the light-emitting area 30 forms a preset pattern 31.

[0167] The preset pattern layer 51 can be disposed on the light-emitting element 40. Light emitted by the light-emitting element 40 passes through the preset pattern layer 51 to form the preset pattern 31. The preset pattern layer 51 can be disposed on the inner side of the lower surface of the protrusion 20. The protrusion 20 includes a lower wall. The downward outer surface of the lower wall is the lower surface of the protrusion 20, and the upward inner surface of the lower wall is the inner side of the lower surface of the protrusion 20. For example, at least a portion of the lower wall of the protrusion 20 is a transparent member 53, so that light emitted by the light-emitting element 40 can be transmitted outward through the transparent member 53. The preset pattern layer 51 can be disposed on the upward inner surface of the transparent member 53.

[0168] The preset pattern layer 51 includes a silk-screen layer and / or a color-sprayed layer and / or a film layer. Specifically, the preset pattern layer 51 may include one of a silk-screen layer, a color-sprayed layer, and a film layer. The preset pattern layer 51 may also be a combination of at least two of these. When the preset pattern layer 51 is a color-sprayed layer, it is formed using an inkjet printing process, thereby facilitating the formation of a preset pattern 31 with a wide variety of colors and complex shapes and lines.

[0169] Furthermore, the lower surface 21 of the protrusion has a soft light layer 52, or the light-emitting element 40 has a soft light layer 52. Light emitted by the light-emitting element 40 passes through the preset pattern layer 51 and the soft light layer 52, forming a light-emitting area 30 having a preset pattern 31 on the lower surface 21 of the protrusion. The light emitted by the light-emitting element 40 passes through the soft light layer 52, making the light more uniform and soft, ensuring that the preset pattern 31 creates a better atmosphere. There is no order in which the preset pattern layer 51 and the soft light layer 52 are passed. Light emitted by the light-emitting element 40 can first pass through the preset pattern layer 51 and then the soft light layer 52, or it can first pass through the soft light layer 52 and then the preset pattern layer 51.

[0170] In one embodiment, if Figure 13 As shown, when the reflector 60 is in the reflecting position, the angle α between the reflector 60 and at least a portion of the lower surface having the luminous area 30 is not greater than a first preset angle and not less than a second preset angle, the first preset angle is between 50° and 65°, and the second preset angle is between 25° and 50°. The preset pattern 31 emitted by the luminous area 30 is reflected by the reflector 60 and propagates forward. When cooking, the user usually stands in front of the lower cavity 12, and the height of the user's eyes is generally above the reflector 60. By limiting the angle α, it is helpful to ensure that the user can see the preset pattern 31 through the reflector 60.

[0171] In one embodiment, the first preset angle is between 50° and 65°, and the first preset angle can be any value between 50° and 65°. The larger the angle α when the reflector 60 is in the reflecting position, the lower the height at which the preset pattern 31 propagates forward after being reflected by the reflector 60. Angle α not greater than the first preset angle prevents the user from having to be at an excessively low height to see a relatively complete preset pattern 31, making it easier for the user to see the preset pattern 31 through the reflector 60 while cooking.

[0172] In one embodiment, the second preset angle is between 25° and 50°, and the second preset angle can be any value between 25° and 50°. The smaller the angle α when the reflector 60 is in the reflecting position, the higher the height at which the preset pattern 31 propagates forward after being reflected by the reflector 60. The angle α is not less than the second preset angle, which can avoid the user's eyes having to be at too high a height to see a relatively complete preset pattern 31, making it easier for the user to see the preset pattern 31 through the reflector 60 when cooking.

[0173] In another embodiment, when the reflector 60 is in the reflective position, the angle between the reflector 60 and the portion of the lower surface having the luminous area 30 is between half the angle between the lower surface and a vertical plane minus 15° and half the angle between the lower surface and a vertical plane plus 15°. By ensuring that the angle between the reflector 60 and the portion of the lower surface having the luminous area 30 is no less than half the angle between the lower surface and a vertical plane minus 15°, the user can easily see the preset pattern 31 on the reflector 60, creating a good atmosphere, and can also facilitate user control of the touch button graphics or buttons provided on the reflector 60. By ensuring that the angle between the reflector 60 and the portion of the lower surface having the luminous area 30 is no greater than half the angle between the lower surface and a vertical plane plus 15°, the user can easily see the preset pattern 31 on the reflector 60, creating a good atmosphere, and can also effectively trap smoke when the reflector 60 serves as a smoke trap 61. Preferably, the angle between the reflective plate 60 and the portion of the lower surface having the light-emitting area 30 is half of the angle between the lower surface and the vertical plane.

[0174] In one embodiment, if Figure 12 As shown, when the reflector 60 is in the reflecting position, the reflector 60 is horizontally arranged or substantially horizontally arranged. Since the user needs to look at the pot when cooking, usually looking downward, it is more convenient for the user to see the preset pattern 31 through the reflector 60 when cooking.

[0175] Preferably, if Figure 11-13As shown, the reflector 60 is disposed in the middle or lower portion of the lower cavity 12 so that the reflector 60 is positioned relatively low, making it easier for the user to see the preset pattern 31 through the reflector 60 and avoiding the reflector 60 being too high and inconvenient for the user to see.

[0176] In one embodiment, if Figure 11 As shown, at least a portion of the lower surface of the light-emitting area 30 is tilted upward in the direction from back to front, so that compared with a horizontal setting, it is easier for the light emitted by the light-emitting area 30 to be reflected to the user through the reflective plate 60.

[0177] Furthermore, when the reflective plate 60 is in the reflecting position, the angle between at least part of the lower surface of the luminous area 30 and the reflective plate 60 is greater than 0 and not greater than 30°, which not only makes it convenient for the user to see the preset pattern 31 emitted by the luminous area 30 through the reflective plate 60, but also enables the reflective plate 60 to have a better smoke-collecting effect when used as a smoke-collecting plate 61.

[0178] In one embodiment, when the reflector 60 is in the reflecting position, at least a portion of the reflector 60 is located below the luminous area 30. Light emitted from the luminous area 30 propagates downward and then, after being reflected by the reflector 60, propagates forward. Furthermore, the projection of the reflector 60 on the lower surface 21 of the protrusion overlaps with the luminous area 30.

[0179] When the reflector 60 is in the reflecting position, the reflector 60 is projected onto the lower surface 21 of the protrusion in a direction perpendicular to the lower surface 21 of the protrusion. The projection of the reflector 60 overlaps with the light-emitting area 30. The preset pattern 31 emitted from the overlapping area of ​​the light-emitting area 30 propagates downward to the reflector 60 and is reflected by the reflector 60 so as to be seen by the user located in front of the lower cavity 12.

[0180] In one embodiment, the ratio of the area of ​​the overlapping region to the area of ​​the light-emitting region 30 is not less than a first preset ratio value, ensuring that the overlapping region accounts for a sufficiently high proportion of the light-emitting region 30, thereby ensuring that the preset pattern 31 emitted by the light-emitting region 30 is completely visible to the user after being reflected by the reflector 60. Preferably, the first preset ratio value is between 20% and 100%, that is, the first preset ratio value can be any value between 20% and 100%. For example, if the first preset ratio value is equal to 20%, the ratio of the area of ​​the overlapping region to the area of ​​the light-emitting region 30 is not less than 20%; if the first preset ratio value is equal to 45%, the ratio of the area of ​​the overlapping region to the area of ​​the light-emitting region 30 is not less than 45%; if the first preset ratio value is equal to 70%, the ratio of the area of ​​the overlapping region to the area of ​​the light-emitting region 30 is not less than 70%; and if the first preset ratio value is equal to 100%, the ratio of the area of ​​the overlapping region to the area of ​​the light-emitting region 30 is not less than 100%.

[0181] In one embodiment, the ratio of the area of ​​the overlapping region to the area of ​​the light-emitting region 30 is less than a second predetermined ratio value, which is between 60% and 100%. This ensures that not all light emitted from the light-emitting region 30 is reflected by the reflector 60, and that some light can illuminate the stovetop to provide lighting. The second predetermined ratio value can be any value between 60% and 100%.

[0182] Furthermore, the ratio of the area of ​​the overlapping area to the area of ​​the luminous area 30 is not less than the first preset ratio value and less than the second preset ratio value, the first preset ratio value is 30%, and the second preset ratio value is 90%, thereby ensuring that the user can see a relatively complete and clear preset pattern 31, and can also serve as lighting, ensuring that the user can clearly see the stove and pots below when cooking.

[0183] In one embodiment, the projection of the reflector 60 on the lower surface 21 of the protrusion completely covers the light-emitting area 30, so that the preset pattern 31 emitted by the light-emitting area 30 can all be transmitted downward to the reflector 60 in a direction perpendicular to the lower surface 21 of the protrusion, and reflected by the reflector 60 to the user located in front of the lower cavity 12, so that the user can see the complete preset pattern 31.

[0184] In another embodiment, the projection of the reflector 60 on the lower surface 21 of the protrusion falls entirely into the luminous area 30, so that the preset pattern 31 emitted by the luminous area 30 can completely cover the reflector 60. In this way, the reflector 60 seen by the user is completely covered with the preset pattern 31, enhancing the sense of atmosphere.

[0185] In one embodiment, the length of the projection of the reflector 60 on the lower surface 21 of the protrusion is substantially the same as the length of the luminous area 30, and the width of the projection of the reflector 60 on the lower surface 21 of the protrusion is substantially the same as the width of the luminous area 30. This ensures that when a user looks at the reflector 60, the reflector 60 is substantially covered by the preset pattern 31, and the preset pattern 31 is substantially complete. The user sees a high degree of completeness of the preset pattern 31, thereby improving the atmosphere created. The aforementioned "substantially the same" can specifically mean being the same or having a difference between the two within a preset range. The preset range can be: the difference between the two is no greater than a predetermined length value, for example, the predetermined length value can be any value between 0 and 10 cm; or the ratio of the difference between the two to the smaller of the two is no greater than a predetermined ratio, for example, the predetermined ratio can be any ratio between 0 and 40%.

[0186] In one embodiment, the width of the projection and the width of the light-emitting area 30 are respectively the dimensions of the front-to-back direction 81 on the lower surface 21 of the protrusion; the length of the projection and the length of the light-emitting area 30 are respectively the dimensions of the left-to-right direction 82 on the lower surface 21 of the protrusion.

[0187] In one embodiment, the projection of the reflector 60 on the lower surface 21 of the protrusion has two opposing projected long sides and projected wide sides located on either side of the projected long sides. The boundary of the luminous area 30 is close to or at least partially overlaps with the projected long sides, so that when the preset pattern 31 emitted by the luminous area 30 propagates downward in a direction perpendicular to the lower surface 21 of the protrusion, the boundary of the preset pattern 31 is close to or overlaps with the long sides of the reflector 60, facilitating a user to see a relatively complete preset pattern 31 on the reflector 60. In another embodiment, the boundary of the luminous area 30 is close to or at least partially overlaps with the projected wide sides, so that when the preset pattern 31 emitted by the luminous area 30 propagates downward in a direction perpendicular to the lower surface 21 of the protrusion, the boundary of the preset pattern 31 is close to or overlaps with the wide sides of the reflector 60, facilitating a user to see a relatively complete preset pattern 31 on the reflector 60.

[0188] Furthermore, the boundaries of the luminous area 30 include two opposing long sides and wide sides located on either side of the long sides. The projected long sides are adjacent to or coincide with the long sides, and the projected wide sides are adjacent to or coincide with the wide sides. This ensures that when the preset pattern 31 emitted from the luminous area 30 propagates downwardly in a direction perpendicular to the lower surface 21 of the protrusion, the long sides of the preset pattern 31 are adjacent to or coincide with the long sides of the reflector 60, and the wide sides of the preset pattern 31 are adjacent to or coincide with the wide sides of the reflector 60. This facilitates the user's viewing of the entire preset pattern 31 on the reflector 60 and ensures that the reflector 60 is substantially entirely covered by the preset pattern 31, thereby enhancing the sense of atmosphere. Specifically, the aforementioned proximity can be achieved by ensuring that the distance between the two is no greater than a predetermined length value, for example, the predetermined length value can be any value between 0 and 5 cm.

[0189] In one embodiment, the projected wide side and the area wide side are edges on the lower surface 21 of the protrusion in the front-to-back direction 81, respectively; the projected long side and the area long side are edges on the lower surface 21 of the protrusion in the left-to-right direction 82, respectively. The projection of the reflector 60 on the lower surface 21 of the protrusion and the luminous area 30 are both rectangular or substantially rectangular.

[0190] The utility model also provides a range hood, which is a top-suction range hood. Figure 14 As shown, the range hood includes: a fan box 11 and a lower cavity 12. The range hood or the lower cavity 12 has a reflector 60. The position of the reflector 60 includes at least a reflection position. The lower surface of the lower cavity 12 has a luminous area 30 that can form a preset pattern 31. When the reflector 60 is located at the reflection position, at least part of the reflector 60 is located below the luminous area 30, reflecting the preset pattern 31 formed by the luminous area 30.

[0191] The light emitted from the light-emitting area 30 on the lower surface of the lower cavity 12 can form a preset pattern 31. The preset pattern 31 can be a figure with a preset shape that is formed by patterning the light emitted by the light-emitting element 40. For example, the figure formed by the light of the light-emitting element 40 passing through the preset pattern layer 51 is similar to a painting that is intended to be shown to the user. The preset pattern 31 can also be formed by changing the light-emitting element 40. For example, the light-emitting element 40 itself is made into a preset shape, and the light emitted by the light-emitting element 40 forms the preset pattern 31. The light emitted by the light-emitting area 30 propagates downward and, after being reflected by the reflector 60 located at the reflection position, can be transmitted to the user, so that the user can see the preset pattern 31 from the reflector 60. The preset pattern 31 can create a sense of atmosphere on the reflector 60. The preset atmosphere pattern such as that formed by the light-emitting area 30 is presented to the user through the reflector 60, so as to facilitate the creation of a lighting atmosphere in front of the user's field of vision.

[0192] In one embodiment, the lower cavity 12 includes a light-emitting element 40. The inner side of the lower surface of the lower cavity 12 or the light-emitting element 40 has a predetermined pattern layer 51. Along the propagation direction of the light, light emitted by the light-emitting element 40 passes through the predetermined pattern layer 51, forming a light-emitting region 30 having a predetermined pattern 31 on the lower surface of the lower cavity 12. The predetermined pattern layer 51 has a predetermined patterned light-transmitting region, so that light emitted by the light-emitting element 40 is partially blocked by the predetermined pattern layer 51, while partially passing through the predetermined pattern layer 51, thereby forming the predetermined pattern 31 in the light emitted by the light-emitting region 30.

[0193] The preset pattern layer 51 can be disposed on the light-emitting element 40. Light emitted by the light-emitting element 40 passes through the preset pattern layer 51 to form the preset pattern 31. The preset pattern layer 51 can be disposed on the inner side of the lower surface of the lower cavity 12. The lower cavity 12 includes a lower wall. The downward outer surface of the lower wall is the lower surface of the lower cavity 12, and the upward inner surface of the lower wall is the inner side of the lower surface of the lower cavity 12. For example, at least a portion of the lower wall of the lower cavity 12 is a transparent member 53, so that light emitted by the light-emitting element 40 can be transmitted outward through the transparent member 53. The preset pattern layer 51 can be disposed on the upward inner surface of the transparent member 53.

[0194] The preset pattern layer 51 includes a silk-screen layer and / or a color-sprayed layer and / or a film layer. Specifically, the preset pattern layer 51 may include one of a silk-screen layer, a color-sprayed layer, and a film layer. The preset pattern layer 51 may also be a combination of at least two of these. When the preset pattern layer 51 is a color-sprayed layer, it is formed using an inkjet printing process, thereby facilitating the formation of a preset pattern 31 with a wide variety of colors and complex shapes and lines.

[0195] The location of the reflector 60 and the structure of the light-emitting area 30 have been previously described and will not be repeated here.

[0196] The above are only several embodiments of the present invention. Those skilled in the art may make various changes or modifications to the embodiments of the present invention based on the contents disclosed in the application documents without departing from the spirit and scope of the present invention.

Claims

1. A range hood, characterized in that: The range hood comprises: a fan box and a lower cavity, wherein the lower cavity and the fan box are sequentially arranged along the flow direction of the smoke; The lower cavity includes a transverse cavity portion extending in the transverse direction and a longitudinal cavity portion extending in the longitudinal direction, wherein the longitudinal cavity portion is located below the transverse cavity portion; The transverse cavity portion has a protruding portion that is protruding from the front panel of the longitudinal cavity portion, and the lower surface of the protruding portion has a luminous area that can form a preset pattern; The range hood or the lower cavity has a reflector, and the position of the reflector includes at least a reflection position. When the reflector is located at the reflection position, at least part of the reflector is located below the protrusion, reflecting the preset pattern formed by the luminous area.

2. The range hood according to claim 1, characterized in that: When the reflector is located at the reflecting position, the reflector extends downward and forward in a direction away from the front panel of the longitudinal cavity portion to reflect the preset pattern emitted by the light-emitting area to the space below.

3. The range hood according to claim 1 or 2, characterized in that: When the reflective plate is located at the reflecting position, at least a portion of the reflective plate is located below the light-emitting area.

4. The range hood according to claim 3, characterized in that: The projection of the reflective plate on the lower surface of the protrusion has an overlapping area with the light-emitting area.

5. The range hood according to claim 4, characterized in that: The ratio of the area of ​​the overlapping region to the area of ​​the light-emitting region is not less than a first preset ratio value, and the first preset ratio value is between 20% and 100%.

6. The range hood according to claim 4, characterized in that: The ratio of the area of ​​the overlapping region to the area of ​​the light-emitting region is smaller than a second preset ratio value, and the second preset ratio value is between 60% and 100%.

7. The range hood according to claim 4, characterized in that: The ratio of the area of ​​the overlapping region to the area of ​​the light-emitting region is not less than a first preset ratio value and less than a second preset ratio value, the first preset ratio value is 30%, and the second preset ratio value is 90%.

8. The range hood according to claim 3, characterized in that: The projection of the reflective plate on the lower surface of the protruding portion completely covers the luminous area, or the projection of the reflective plate on the lower surface of the protruding portion completely falls into the luminous area.

9. The range hood according to claim 3, characterized in that: The length of the projection of the reflector on the lower surface of the protrusion is substantially the same as the length of the light-emitting area. The width of the projection of the reflective plate on the lower surface of the protrusion is substantially the same as the width of the light-emitting area.

10. The range hood according to claim 3, characterized in that: The projection of the reflector on the lower surface of the protruding portion has two opposite projected long sides and projected wide sides located on both sides of the projected long sides. The boundary of the light-emitting area is close to the projected long side or at least partially overlaps with the projected long side, and / or the boundary of the light-emitting area is close to the projected wide side or at least partially overlaps with the projected wide side.

11. The range hood according to claim 10, characterized in that: The boundary of the light emitting area includes two opposite long sides of the area and wide sides of the area located on both sides of the long sides of the area. The projected long side is close to the long side of the region or coincides with the long side of the region, and the projected wide side is close to the wide side of the region or coincides with the wide side of the region.

12. The range hood according to claim 2, characterized in that: When the reflector is in the reflecting position, the angle between the reflector and the portion of the lower surface having the luminous area is not greater than a first preset angle and not less than a second preset angle, the first preset angle is less than 90 degrees, and the second preset angle is greater than 0 degrees; Alternatively, when the reflector is in the reflecting position, the angle between the reflector and the portion of the lower surface having the luminous area is between half of the angle between the lower surface and the vertical plane minus 15° and half of the angle between the lower surface and the vertical plane plus 15°.

13. The range hood according to claim 12, characterized in that: The first preset angle is between 50° and 65°, and / or the second preset angle is between 25° and 50°.

14. The range hood according to claim 1, characterized in that: The front panel of the longitudinal cavity portion has a smoking port, The reflective plate is a smoke collecting plate, and the smoke collecting plate is located at the smoking port. The smoke collecting plate has relative inner and outer surfaces, the inner surface being closer to the smoking port than the outer surface. When the smoke collecting plate is located at the reflecting position, the inner surface is used to collect smoke, and the outer surface is used to reflect the preset pattern formed by the light-emitting area.

15. The range hood according to claim 14, characterized in that: The position of the cigarette collecting plate also includes a closed position. When the cigarette collecting plate is located at the closed position, the smoking port is covered.

16. The range hood according to claim 14, characterized in that: The front panel of the longitudinal cavity portion also has a condensation plate. Along the flow direction of the smoke, the smoke condenses on the condensation plate and then flows into the smoke outlet. The condensation plate has an upper end close to the smoking port and a lower end away from the smoking port. A light source is provided in the space above the condensation plate. Light emitted by the light source can enter from the upper end of the condensation plate and be emitted from the lower end of the condensation plate.

17. The range hood according to claim 16, characterized in that: The lower end of the condensation plate is a rough end, and the light emitted by the light source is scattered at the rough end to form a light-emitting end.

18. The range hood according to claim 1, characterized in that: A light-emitting element is provided in the transverse cavity portion, and the inner side of the lower surface of the protrusion or the light-emitting element has a preset pattern layer. Along the propagation direction of the light, the light emitted by the light-emitting element passes through the preset pattern layer and forms a light-emitting area with the preset pattern on the lower surface of the protrusion.

19. The range hood according to claim 18, characterized in that: The preset pattern layer includes a silk screen layer and / or a color spray layer and / or a film layer. When the preset pattern layer is the color spray layer, the preset pattern layer is formed by spraying through a spraying process.

20. The range hood according to claim 18, wherein: The protrusion also has a soft light layer. The light emitted by the light-emitting element passes through the preset pattern layer and the soft light layer, and forms a light-emitting area with the preset pattern on the lower surface of the protrusion.

21. The range hood according to claim 1, characterized in that: A light-emitting element with a preset pattern is disposed in the transverse cavity portion, and light emitted by the light-emitting element with a preset pattern forms the preset pattern in the light-emitting area.

22. The range hood according to claim 1, characterized in that: The transverse cavity portion has a light-emitting element, and the inner side of the lower surface of the protrusion or the light-emitting element has a preset pattern layer, and the preset pattern layer is provided with a plurality of light point light-transmitting areas and / or a plurality of light spot light-transmitting areas and / or a plurality of light segment light-transmitting areas arranged at intervals, and the preset pattern is a plurality of light points and / or a plurality of light spots and / or a plurality of light segments arranged at intervals.

23. The range hood according to claim 1, characterized in that: A touch button pattern is provided on the reflective plate, and the preset pattern irradiated on the reflective plate does not overlap with the touch button pattern.

24. The range hood according to claim 1, characterized in that: The reflective plate is arranged in the longitudinal cavity portion.

25. The range hood according to claim 24, characterized in that: The reflective plate is at least a portion of the front panel of the longitudinal cavity portion and can move in a direction away from the front panel to the reflecting position.

26. The range hood according to claim 1, characterized in that: The reflective plate is arranged in the transverse cavity portion.

27. The range hood according to claim 26, characterized in that: The reflective plate can move toward the space below the transverse cavity portion and move to the reflecting position.

28. The range hood according to claim 27, characterized in that: The reflective plate is rotatably arranged in the transverse cavity portion. The reflective plate can be rotated from the transverse cavity portion to the longitudinal cavity portion and rotated to the reflecting position.

29. The range hood according to claim 1, characterized in that: The lower cavity is a thin lower cavity, and the thin lower cavity has a front panel and a rear panel that are relatively arranged and do not exceed a first preset spacing distance. The thin lower cavity also has a left panel and a right panel that are relatively arranged and do not exceed a second preset spacing distance. The front panel is connected to both the left panel and the right panel, and the rear panel is connected to both the left panel and the right panel.

30. The range hood according to claim 29, characterized in that: The first preset spacing distance is between 40 mm and 160 mm, and the second preset spacing distance is between 890 mm and 900 mm.

31. The range hood according to claim 29, characterized in that: The front panel of the thin lower cavity is an inclined panel with a preset angle to the vertical direction, and the preset angle is not greater than 20° and not less than 8°.

32. The range hood according to claim 29, characterized in that: The distance between the top of the front panel of the thin lower cavity and the top of the rear panel is not less than 2 times the distance between the bottom of the front panel of the thin lower cavity and the bottom of the rear panel, and / or the distance between the top of the front panel of the thin lower cavity and the top of the rear panel is not more than 3 times the distance between the bottom of the front panel of the thin lower cavity and the bottom of the rear panel.

33. The range hood according to claim 32, characterized in that: The distance between the bottom of the front panel of the thin lower cavity and the bottom of the rear panel is 50 mm-60 mm, and the distance between the top of the front panel of the thin lower cavity and the top of the rear panel is 120 mm-140 mm.

34. The range hood according to claim 1, characterized in that The range hood is a side-suction range hood, the lower cavity is a side-suction type lower cavity, the upper part of the side-suction type lower cavity is the transverse cavity part, and the lower part of the side-suction type lower cavity is the longitudinal cavity part.

35. A range hood, characterized in that: The range hood includes: a fan box and a lower cavity, the fan box has a protrusion that is arranged to protrude compared to the lower cavity, and the lower surface of the protrusion has a luminous area that can form a preset pattern; the range hood or the lower cavity has a reflector, and the position of the reflector includes at least a reflection position. When the reflector is located at the reflection position, at least part of the reflector is located below the protrusion, reflecting the preset pattern formed by the luminous area.

36. The range hood according to claim 35, characterized in that: When the reflector is located at the reflecting position, the reflector is extended downward and forward in a direction away from the range hood.

37. The range hood according to claim 36, characterized in that: The reflective plate is arranged at the upper part or the middle part of the lower cavity.

38. The range hood according to claim 36, characterized in that: The lower cavity has a smoking port. The reflective plate is a smoke collecting plate, and the smoke collecting plate is located at the smoking port. The angle between the smoke collecting plate and the horizontal plane is not greater than 45°.

39. The range hood according to claim 35, characterized in that: The lower cavity has a smoking port. The reflective plate is a smoke collecting plate, and the smoke collecting plate is located at the smoking port. The smoke collecting plate has relative inner and outer surfaces, the inner surface being closer to the smoking port than the outer surface. When the smoke collecting plate is located at the reflecting position, the inner surface is used to collect smoke, and the outer surface is used to reflect the preset pattern formed by the light-emitting area.

40. The range hood according to claim 39, characterized in that: The position of the cigarette collecting plate also includes a closed position. When the cigarette collecting plate is located at the closed position, the smoking port is covered.

41. The range hood according to claim 35, characterized in that: The lower cavity is a thin lower cavity, and the thin lower cavity has a front panel and a rear panel that are relatively arranged and do not exceed a first preset spacing distance. The thin lower cavity also has a left panel and a right panel that are relatively arranged and do not exceed a second preset spacing distance. The front panel is connected to both the left panel and the right panel, and the rear panel is connected to both the left panel and the right panel. The protrusion is arranged to protrude from the front panel of the thin lower cavity. The first preset spacing distance is between 40 mm and 160 mm, and the second preset spacing distance is between 890 mm and 900 mm.

42. The range hood according to claim 35, characterized in that: The fan box has a light-emitting element, and the light-emitting element has a preset pattern layer or the inner side of the lower surface of the protrusion has a preset pattern layer. Along the propagation direction of the light, the light emitted by the light source of the light-emitting element passes through the preset pattern layer and forms a light-emitting area with the preset pattern on the lower surface of the protrusion. The preset pattern layer includes a silk screen layer and / or a color spray layer and / or a film layer. When the preset pattern layer is the color spray layer, the preset pattern layer is formed by spraying through a spraying process.

43. The range hood according to claim 42, characterized in that: The lower surface of the protrusion has a soft light layer or the light-emitting element has a soft light layer. The light emitted by the light-emitting element passes through the preset pattern layer and the soft light layer to form a light-emitting area with the preset pattern on the lower surface of the protrusion.

44. The range hood according to claim 36, characterized in that When the reflective plate is located at the reflecting position, the angle between the reflective plate and at least a portion of the lower surface having the luminous area is not greater than a first preset angle and not less than a second preset angle. The first preset angle is between 50° and 65°, and the second preset angle is between 25° and 50°; Alternatively, when the reflector is in the reflecting position, the angle between the reflector and the portion of the lower surface having the luminous area is between half of the angle between the lower surface and the vertical plane minus 15° and half of the angle between the lower surface and the vertical plane plus 15°.

45. The range hood according to claim 35, characterized in that When the reflector is located at the reflecting position, the reflector is arranged horizontally or substantially horizontally.

46. ​​The range hood according to claim 36 or 45, characterized in that: At least a portion of the lower surface having the light emitting area is tilted upward in a direction from rear to front.

47. The range hood according to claim 46, characterized in that: When the reflective plate is located at the reflecting position, an angle between at least a portion of the lower surface having the luminous area and the reflective plate is greater than 0 and not greater than 30°.

48. The range hood according to claim 45, characterized in that The reflective plate is arranged at the middle or lower part of the lower cavity.

49. The range hood according to claim 35, characterized in that When the reflector is located at the reflecting position, at least a portion of the reflector is located below the luminous area, and a projection of the reflector on the lower surface of the protrusion overlaps with the luminous area. The ratio of the area of ​​the overlapping region to the area of ​​the light-emitting region is not less than a first preset ratio value, and the first preset ratio value is between 20% and 100%. Alternatively, the ratio of the area of ​​the overlapping region to the area of ​​the light-emitting region is less than a second preset ratio value, and the second preset ratio value is between 60% and 100%. Alternatively, the ratio of the area of ​​the overlapping region to the area of ​​the light-emitting region is not less than a first preset ratio value and less than a second preset ratio value, the first preset ratio value is 30%, and the second preset ratio value is 90%.

50. The range hood according to claim 35, characterized in that The projection of the reflective plate on the lower surface of the protruding portion completely covers the luminous area, or the projection of the reflective plate on the lower surface of the protruding portion completely falls into the luminous area; Alternatively, the length of the projection of the reflector on the lower surface of the protrusion is substantially the same as the length of the light-emitting area, and the width of the projection of the reflector on the lower surface of the protrusion is substantially the same as the width of the light-emitting area; Alternatively, the projection of the reflective plate on the lower surface of the protrusion has two opposite projected long sides and projected wide sides located on both sides of the projected long sides, the boundary of the luminous area is close to the projected long sides or at least partially overlaps with the projected long sides, and / or the boundary of the luminous area is close to the projected wide sides or at least partially overlaps with the projected wide sides.

51. A range hood, characterized in that: The range hood is a top-suction range hood, comprising: a fan box and a lower cavity; the range hood or the lower cavity has a reflector, the position of the reflector includes at least a reflection position; the lower surface of the lower cavity has a luminous area capable of forming a preset pattern; When the reflective plate is located at the reflecting position, at least a portion of the reflective plate is located below the luminous area, reflecting the preset pattern formed by the luminous area. The lower cavity has a light-emitting element, and the inner side of the lower surface of the lower cavity or the light-emitting element has a preset pattern layer. Along the propagation direction of the light, the light emitted by the light-emitting element passes through the preset pattern layer and forms a light-emitting area with the preset pattern on the lower surface of the lower cavity. The preset pattern layer includes a silk screen layer and / or a color spray layer and / or a film layer.

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