Lighting device for range hood and range hood applying lighting device

Abstract

The lighting device for the extractor hood comprises a lampshade, a lamp panel and a lamp panel made of glass, the lampshade is in a box shape with an opening in the bottom, a mounting cavity is formed in the lampshade, the lamp panel is arranged in the mounting cavity, and the lamp panel is arranged in the mounting cavity. The lamp panel is fixed in the mounting cavity of the lampshade, and the lamp panel is fixedly arranged at the bottom of the lampshade through mucilage glue. Compared with the prior art, the LED lamp has the advantages that the lamp panel and the lampshade are fixed in an adhesive mode, so that additional mounting components are not needed, the number of parts can be reduced, additional mounting component machining procedures are not needed when the lamp panel is machined, the gluing procedure is convenient and easy to operate, and the comprehensive cost can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of lighting, in particular to a lighting device for a range hood and a range hood using the lighting device. Background Art

[0002] As an indispensable kitchen appliance in every family, the range hood sucks in oil fume from the air inlet through the high-speed rotating impeller in the volute, filters the oil fume with the impeller, and discharges the filtered oil fume from the air outlet to complete the kitchen air purification work. Reasonable air inlet setting is conducive to improving the oil fume absorption effect, reducing the escape of oil fume, and improving the air quality in the kitchen.

[0003] As a basic configuration of the range hood, the lighting lamp is generally arranged under the smoke hood, the side panel of the frame or the fan cover. Especially for those arranged close to the top of the stove, considering the temperature of the flame during cooking, the outer surface of the lighting lamp is generally provided with a glass panel (avoid the direct use of a plastic panel) to meet the temperature resistance requirements. Considering the lighting effect, a uniform light display is generally required, and considering the processing and appearance reliability, a metal frame is generally required to be added to the outermost side. For example, the applicant's application number 201921804151.7 discloses a lighting device for a range hood, including a substrate, a shadowless lighting component is provided on the substrate, and the shadowless lighting component includes an LED patch array, and the lighting device also includes a light-distributing plate arranged at intervals on the side of the LED patch array away from the substrate, and a single-transparent glass is provided on the side of the light-distributing plate away from the LED patch array, and a frame is provided on the edge of the substrate, the light-distributing plate and the single-transparent glass. On the one hand, the raw material cost and assembly process of this lighting lamp with an added metal frame and a light-distributing plate increase. In addition, the lighting lamp is an appearance part that can be perceived by the user. Due to factors such as cost, it is difficult to achieve a one-to-one match between the color of the lighting lamp frame and the color of the installation surface (such as parts such as smoke hoods), resulting in poor overall consistency and affecting the user experience.

[0004] To this end, there are now borderless lighting devices, such as a Chinese patent application number 202320967063.9, which discloses a lighting fixture with an integrated snap-on structure for use in range hoods. The lighting fixture comprises a lamp body including a bottom shell, a light board and a light cover, the bottom shell having a receiving groove, the light board being arranged on the bottom shell and located in the receiving groove, the light cover being located at the notch position of the receiving groove and being connected to the bottom shell, the bottom shell being provided with a buckle portion at the inner wall of the receiving groove, the light cover being provided with an installation protrusion on the surface close to one side of the receiving groove, the installation protrusion being able to enter the receiving groove, the installation protrusion being provided with a snap-on portion, the buckle portion being snapped with the snap-on portion so that the bottom shell is connected to the light cover.

[0005] This lighting fixture no longer has a frame, and its light-transmitting cover can be glass or acrylic. However, in order to process the above-mentioned mounting protrusions and bayonet holes for installation on the glass cover, it is necessary to separately provide elastic components, which still increases the number of parts and assembly processes, resulting in increased costs. Utility Model Content

[0006] The first technical problem to be solved by the present invention is to provide a lighting device for a range hood in view of the deficiencies in the above-mentioned prior art, so as to reduce the number of parts and components and lower the overall cost.

[0007] The second technical problem to be solved by the utility model is to provide a range hood with the above-mentioned lighting device.

[0008] The technical solution adopted by the utility model to solve the above-mentioned first technical problem is: a lighting device for a range hood, comprising a lampshade, a lamp board and a lamp panel made of glass, wherein the lampshade is in the shape of a box with an opening at the bottom, a mounting cavity is formed in the lampshade, and the lamp board is fixed in the mounting cavity of the lampshade, characterized in that:

[0009] The lamp panel is fixed on the bottom of the lampshade by adhesive.

[0010] By fixing the lamp panel and the lampshade with glue, there is no need to set up additional installation components, which can not only reduce the number of parts, but also eliminate the need to add additional processing and installation component processes when processing the lamp panel. The gluing process is convenient and easy to operate, which can reduce the overall cost.

[0011] Furthermore, in order to facilitate gluing to fix the lamp panel, the lampshade includes a cover body, the cover body is in the shape of a box with an open bottom, the installation cavity is formed in the cover body, the bottom of the cover body extends outward for a certain distance and then bends downward, thereby forming a first folded edge extending laterally and a second folded edge extending longitudinally, the bottom of the first folded edge extends downward to form a retaining rib, the lamp panel is at least partially inserted into the space enclosed by the second folded edge, and the outer periphery of the lamp panel abuts against the inner wall of the second folded edge, the first folded edge, the second folded edge and together constitute a glue groove for gluing, and the retaining rib is located above the lamp panel.

[0012] Furthermore, the bottom surface of the second folded edge is higher than the bottom surface of the lamp panel. On the one hand, it can minimize the impact of the leakage of the second folded edge on the appearance after installation on the whole machine. At the same time, the second folded edge plays a protective role in the overall installation of the lighting device, avoiding direct contact between the lamp panel and the installation base during the installation process, thereby preventing the risk of damage.

[0013] Furthermore, a glue overflow hole is provided on the first folded edge to ensure the reliability of gluing the lamp panel and the lampshade and at the same time avoid disorderly movement of the glue layer and overflow from the side to affect the exquisiteness of the appearance.

[0014] The first technical solution adopted by the utility model to solve the above-mentioned second technical problem is: a range hood, including a smoke hood, characterized in that: the lighting device as described above is installed on the smoke hood, a mounting hole is opened at the bottom of the smoke hood, and the mounting hole is a flanged hole. The lighting device also includes a spring fixed on the lampshade, the lampshade of the lighting device passes through the mounting hole, and the spring and the flange of the mounting hole are engaged and fixed.

[0015] Furthermore, to facilitate the cooperation between the flange and the spring sheet, the flange of the mounting hole includes an upwardly extending transition portion formed by the smoke hood at the edge of the mounting hole and a connecting portion extending laterally inward from the upper end of the transition portion, and an upwardly bent spring buckle is provided on the connecting portion, and the spring sheet is clamped on the outside of the spring buckle of the connecting portion.

[0016] The second technical solution adopted by the utility model to solve the above-mentioned second technical problem is: a range hood, including a smoke hood, characterized in that: the lighting device as described above is installed on the smoke hood, a mounting hole is opened at the bottom of the smoke hood, the lampshade of the lighting device passes through the mounting hole, and the inner surface of the lamp panel facing the lampshade has a light-homogenizing ink layer for homogenizing the light emitted by the lamp panel.

[0017] Therefore, the light-evening effect can be achieved by using light-evening ink without the need for a separate light-evening plate, which can further reduce costs.

[0018] In order to avoid the gluing track in the glue groove from being exposed, the inner surface of the lamp panel facing the lampshade also has a dark silk-screen layer whose color is darker than the glossy ink layer. The dark silk-screen layer extends inward from a position corresponding to the projection of the outer periphery of the glue groove on the lamp panel to cover a position corresponding to the projection of the inner periphery of the glue groove on the lamp panel. This ensures that when the lighting device is turned off, the lamp panel or the smoke hood looks integrated as a whole. When the lighting device is turned on, the gluing track is shielded, thereby improving the overall refinement and avoiding the track from affecting the lighting.

[0019] According to one aspect of the utility model, the light-distributing ink layer covers the entire surface of the lamp panel, and the dark silk-screen layer is located on the back side of the light-distributing ink layer away from the lamp panel.

[0020] According to another aspect of the utility model, the portion of the bottom of the smoke hood located around the mounting hole is formed as a mounting surface, and the mounting surface is a surface that is consistent with the color of the even-gloss ink layer or the color of the dark silk-screen layer;

[0021] When the mounting surface is a surface having the same color as the light-distributing ink layer, the inner surface of the lamp panel facing the inside of the lampshade further comprises a light-colored silk-screen layer having the same color as the mounting surface, the light-colored silk-screen layer extending inwardly from a position corresponding to the projection of the outer periphery of the glue groove on the lamp panel to cover a position corresponding to the projection of the inner periphery of the glue groove on the lamp panel, the dark-colored silk-screen layer being located on the back of the light-colored silk-screen layer away from the lamp panel, and the inner periphery of the dark-colored silk-screen layer being located on the outside of the inner periphery of the light-colored silk-screen layer, the light-distributing ink layer being located on the inner surface of the lamp panel facing the inside of the lampshade, the outer periphery of the light-distributing ink layer partially overlaps with the inner periphery of the dark-colored silk-screen layer, and the overlapping portion of the light-distributing ink layer and the dark-colored silk-screen layer being located on the back of the dark-colored silk-screen layer away from the lamp panel;

[0022] When the mounting surface is a surface with the same color as the dark silk-screen layer, the light-distributing ink layer is located on the inner surface of the lamp panel facing the lampshade, the outer periphery of the light-distributing ink layer partially overlaps with the inner periphery of the dark silk-screen layer, and the overlapping portion of the light-distributing ink layer and the dark silk-screen layer is located on the back of the dark silk-screen layer away from the lamp panel.

[0023] The third technical solution adopted by the utility model to solve the above-mentioned second technical problem is: a range hood, including a smoke hood, characterized in that: the lighting device as described above is installed on the smoke hood, and a mounting hole is opened at the bottom of the smoke hood, and the lampshade of the lighting device passes through the mounting hole; the lighting device also includes a light-distributing plate located above the lamp panel, and the light-distributing plate is arranged in the space surrounded by the retaining ribs.

[0024] To avoid exposure of the gluing track in the glue groove, the inner surface of the lamp panel facing the lampshade has a dark silk-screen layer whose color is darker than that of the light-diffusing plate. The dark silk-screen layer extends inward from a position corresponding to the projection of the outer periphery of the glue groove on the lamp panel to cover a position corresponding to the projection of the inner periphery of the glue groove on the lamp panel. The inner periphery of the dark silk-screen layer is located within the projection range of the light-diffusing plate. This ensures that when the lighting device is turned off, the lamp panel or the smoke hood looks integrated as a whole. When the lighting device is turned on, the gluing track is shielded, thereby improving the overall refinement and avoiding the track from affecting the lighting.

[0025] According to one aspect of the utility model, the inner surface of the lamp panel facing the lampshade also has a light-colored silk-screen layer whose color is consistent with that of the light-emitting plate, and the light-colored silk-screen layer extends inward from a position corresponding to the projection of the outer periphery of the glue groove on the lamp panel to cover a position corresponding to the projection of the inner periphery of the glue groove on the lamp panel, and the inner periphery of the light-colored silk-screen layer is located within the projection range of the light-emitting plate, and the dark-colored silk-screen layer is on the back side of the light-colored silk-screen layer away from the lamp panel, and the inner periphery of the dark-colored silk-screen layer is located outside the inner periphery of the light-colored silk-screen layer.

[0026] According to another aspect of the utility model, the portion of the bottom of the smoke hood located around the mounting hole is formed as a mounting surface, and the mounting surface is a surface that is consistent with the color of the light-diffusing plate or the color of the dark silk-screen layer;

[0027] When the mounting surface is a surface with the same color as the light-emitting plate, the inner surface of the lamp panel facing the lampshade also has a light-colored silk-screen layer with the same color as the mounting surface, and the light-colored silk-screen layer extends inward from a position corresponding to the projection of the outer periphery of the glue groove on the lamp panel to cover a position corresponding to the projection of the inner periphery of the glue groove on the lamp panel, and the inner periphery of the light-colored silk-screen layer is located within the projection range of the light-emitting plate, and the dark-colored silk-screen layer is located on the back of the light-colored silk-screen layer away from the lamp panel, and the inner periphery of the dark-colored silk-screen layer is located outside the inner periphery of the light-colored silk-screen layer.

[0028] Compared with the prior art, the advantages of the utility model are: by fixing the lamp panel and the lampshade by gluing, there is no need to set up additional mounting components, which can not only reduce the number of parts, but also eliminate the need to add additional processing and mounting component processes when processing the lamp panel, and the gluing process is convenient and easy to operate, which can reduce the overall cost; a dark silk screen layer is silk-screened on the lamp panel to cover the gluing track to prevent it from showing when the lighting device is turned on and affecting the lighting effect, and silk screen layers of different colors can also make the lamp panel adapt to the mounting surface of the smoke hood, thereby improving the installation compatibility of the lighting fixture and the smoke hood and enhancing the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of a range hood according to an embodiment of the utility model;

[0030] Figure 2 It is an assembly cross-sectional view of the smoke collecting hood and the lighting device of the range hood according to the embodiment of the utility model;

[0031] Figure 3 for Figure 2 A schematic diagram of the partial enlargement of Ⅰ;

[0032] Figure 4 A schematic diagram of a lighting device for a range hood according to an embodiment of the utility model;

[0033] Figure 5 Schematic diagram of the lighting device of the range hood according to the embodiment of the utility model (with Figure 4 different perspectives);

[0034] Figure 6 It is a schematic diagram of the exploded structure of the lighting device of the range hood according to an embodiment of the utility model;

[0035] Figure 7 A cross-sectional view of a lighting device for a range hood according to an embodiment of the utility model (connection lines are hidden);

[0036] Figure 8 A schematic diagram of a lampshade of a lighting device of a range hood according to an embodiment of the utility model;

[0037] Fig. 9 This is a schematic diagram of the silk screen printing on the light panel of the lighting device of the range hood according to the embodiment of the utility model (without the light scattering plate, the silk screen printing color is consistent with the light scattering ink);

[0038] Fig.10 This is a schematic diagram of the silk screen printing on the light panel of the lighting device of the range hood according to the embodiment of the utility model (without the light-diffusing plate, the silk screen printing color is consistent with the dark installation surface);

[0039] Fig.11 This is a schematic diagram of the silk screen printing on the light panel of the lighting device of the range hood according to the embodiment of the utility model (without the light-diffusing plate, the silk screen printing color is consistent with the light-colored installation surface);

[0040] Fig.12 This is a schematic diagram of the silk screen printing on the light panel of the lighting device of the range hood according to the embodiment of the utility model (with a light diffuser, the silk screen printing color is consistent with the light diffuser);

[0041] Fig.13 This is a schematic diagram of the silk screen printing on the light panel of the lighting device of the range hood according to the embodiment of the utility model (with a light-diffusing plate, the silk screen printing color is consistent with the dark installation surface);

[0042] Fig.14 This is a schematic diagram of the silk screen printing on the light panel of the lighting device of the range hood according to an embodiment of the utility model (with a light-diffusing plate, the silk screen printing color is consistent with the light-colored installation surface). DETAILED DESCRIPTION

[0043] Embodiments of the present utility model are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals represent the same or similar elements or elements with the same or similar functions.

[0044] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Since the embodiments disclosed in the present utility model can be set in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0045] See also Figure 1 to Figure 6 A range hood comprises a housing 1 and a fume collecting hood arranged at the bottom of the housing 1, wherein the fume collecting hood 2 is in a flat rectangular shape.

[0046] An air inlet 21 is provided at the bottom of the fume hood 2. The range hood further comprises an illuminating device 3 arranged at the bottom of the fume hood 2. In the present embodiment, the illuminating device 3 is preferably located at the left and right sides of the air inlet 21. The illuminating device 3 comprises a shrapnel 31, a lampshade 32, a lamp board 33, a lamp panel 34 and a connecting wire 35. The lampshade 32 is in the shape of a box body with an opening at the bottom, so that a mounting cavity 322 is formed in the lampshade 32, and the lamp board 33 is fixed in the mounting cavity 322 of the lampshade 32. A mounting column 321 can be formed by extending inward from the top of the lampshade 32, and a screw 331 is used to pass through the lamp board 33 and penetrate into the mounting column 321 to fix the lamp board 33. Alternatively, the lamp board 33 and the lampshade 32 can also be fixed by other existing technologies such as buckles. One end of the connecting wire 35 is electrically connected to the lamp board 33, and the other end is passed out of the lampshade 32 and electrically connected to the electrical box of the range hood, so as to supply power to the entire illuminating device.

[0047] The lamp panel 34 is arranged at the bottom opening of the lampshade 32, thereby closing the installation cavity 332. The lamp panel 34 is a glass panel, which can achieve light transmission and meet the temperature resistance requirements (avoid the use of commonly used plastic panels), and it can be fixed on the lampshade 32 by gluing. The spring piece 31 is installed on the lampshade 32, which can be in a U-shape with an opening downward, and snapped on both sides of the width direction of the lampshade 32. The spring piece 31 can be fixed to the top outer side of the lampshade 32 by screws, etc., and the two bottoms of the spring piece 31 can be used for subsequent installation and fixation with the smoke hood 2.

[0048] The lampshade 32 also includes a cover body 323, which is in the shape of a box with an opening at the bottom, and the above-mentioned installation cavity 322 is formed in the cover body 323. The bottom of the cover body 323 extends outward (toward the outside of the cover body 323) for a certain distance and then bends downward, thereby forming a first folded edge 324 extending laterally and a second folded edge 325 extending longitudinally. The bottom of the first folded edge 324 can extend downward to form a retaining rib 326, and the retaining rib 326 can be located at the inner end of the first folded edge 324 away from the second folded edge 325. The above-mentioned lamp panel 34 is at least partially inserted into the space surrounded by the second folded edge 325, and the outer periphery of the lamp panel 34 abuts against the inner wall surface of the second folded edge 325. Therefore, the second folded edge 325 plays a role of limiting and positioning when the lamp panel 34 is glued and fixed, which is convenient for manufacturing and processing. When the lamp panel 34 is installed, the bottom surface of the second folded edge 325 is higher than the bottom surface of the lamp panel 34. On the one hand, it can minimize the impact of the second folded edge 325 leakage on the appearance after installation on the whole machine. At the same time, the second folded edge 325 plays a protective role in the overall installation of the lighting device, avoiding direct contact between the lamp panel 34 (made of glass) and the connecting part 23 of the smoke hood 2 (to be described in detail below) during the installation process, thereby preventing the risk of damage.

[0049] The first folded edge 324 , the second folded edge 325 and the retaining rib 326 together form a glue groove 327 , and a glue overflow hole 3241 is opened on the first folded edge 324 to ensure the reliability of gluing the lamp panel 34 and the lampshade 32 and at the same time avoid disorderly movement of the glue layer and overflow from the side to affect the exquisite appearance.

[0050] The smoke hood 2 is used as the installation base of the lighting device, and a mounting hole 22 is provided at the bottom thereof. The mounting hole 22 is a flanged hole. The flanged hole may include a transition portion 24 extending upward formed by the smoke hood 2 at the edge of the mounting hole 22 and a connecting portion 23 extending laterally inward from the upper end of the transition portion 24. The connecting portion 23 is provided with an upwardly bent snap 231. During installation, the spring piece 31 and part of the lampshade 32 may pass through the mounting hole 22 and enter the smoke hood 2. The glue groove 327 of the lampshade 32 is located in a range corresponding to the transition portion 24 and above the mounting hole 22. The spring piece 31 may be stuck on the outside of the snap 231 of the connecting portion 23, or on the transition portion 24, and the disassembly and assembly are very convenient. The bottom surface of the smoke hood 2 located at the periphery of the lower end of the transition portion 24 (the periphery of the mounting hole 22) constitutes the mounting surface 25. The lampshade 32 is in direct contact with or close to the transition portion 24 (in this embodiment, the mounting hole 22 , the transition portion 24 and the connecting portion 23 together constitute a mounting base), and the bottom surface of the lamp panel 34 preferably does not protrude from the mounting surface 25 .

[0051] The lighting device may not be provided with a light-distributing plate. In this regard, the light-distributing effect can be directly achieved by screen printing with light-distributing ink. At this time, the influence of the glue track (the track is formed on the inner periphery of the glue groove 327) needs to be considered: ① If the screen printing color is consistent with the light-distributing ink, that is, only the light-distributing ink is considered, see Fig. 9 , the dotted line represents the projection of the inner periphery of the glue groove 327 on the lamp panel 34. The light-uniform ink layer 341 can be obtained by directly screen-printing the entire inner surface of the lamp panel 34 facing the lampshade 32, and then the darker ink is screen-printed on the back of the light-uniform ink layer 341 away from the lamp panel 34 to obtain a dark screen-printed layer 342. The dark screen-printed layer 342 extends inward from the position corresponding to the projection of the outer periphery of the glue groove 327 on the lamp panel 34 (basically consistent with the outer periphery of the lamp panel 34) to cover the position corresponding to the projection of the inner periphery of the glue groove 327 on the lamp panel 34. Only the inner periphery of the dark screen-printed layer 342 is shown in the figure; the dark color refers to a color darker than the light-uniform ink color. For example, the light-uniform ink layer 341 is usually white or gray, while the dark screen-printed layer 342 can usually be dark gray or black; ② If the silk-screen color is close to the color of the mounting surface 25 of the smoke hood 2, then if: the mounting surface 25 is dark (such as dark gray or black), then refer to Fig.10 Similarly, the dotted line represents the projection of the inner periphery of the glue groove 327 on the lamp panel 34. First, a dark ink is screen-printed on the inner surface of the lamp panel 34 facing the lampshade 32 to obtain a dark screen-printed layer 342. The dark screen-printed layer 342 extends inward from a position corresponding to the projection of the outer periphery of the glue groove 327 on the lamp panel 34 to cover a position corresponding to the projection of the inner periphery of the glue groove 327 on the lamp panel 34. Only the inner periphery of the dark screen-printed layer 342 is shown in the figure. Then, a uniform light ink is screen-printed to obtain a uniform light ink layer 341. The uniform light ink layer 341 is located on the lamp panel 34 is toward the inner surface of the lampshade 32. Only the outer periphery of the light-distributing ink layer 341 is shown in the figure, and the outer periphery of the light-distributing ink layer 341 can overlap with the inner periphery of the dark silk-screen layer 342. The overlapping part of the light-distributing ink layer 341 and the dark silk-screen layer 342 is located on the back of the dark silk-screen layer 342 away from the lamp panel 34. Because the dark ink is silk-screened first, the light-colored light-distributing ink will basically not affect the front of the dark silk-screen layer 342 after covering it, which reduces the processing difficulty and improves the manufacturability of the product. For the light-colored mounting surface 25, see Fig.11Similarly, the dotted line represents the projection of the inner periphery of the glue groove 327 on the lamp panel 34. First, a circle of light-colored ink is silk-screened on the inner surface of the lamp panel 34 facing the inside of the lampshade 32 to obtain a light-colored silk-screen layer 343. The light-colored silk-screen layer 343 extends inward from a position corresponding to the projection of the outer periphery of the glue groove 327 on the lamp panel 34 to cover a position corresponding to the projection of the inner periphery of the glue groove 327 on the lamp panel 34. Only the inner periphery of the light-colored silk-screen layer 343 is shown in the figure. Then, a dark-colored ink is silk-screened on the back of the light-colored silk-screen layer 343 away from the lamp panel 34 to obtain a dark-colored silk-screen layer 342. The dark-colored silk-screen layer 342 extends inward from a position corresponding to the projection of the outer periphery of the glue groove 327 on the lamp panel 34 to cover a position corresponding to the projection of the inner periphery of the glue groove 327 on the lamp panel 34. The position extends inward to cover the position corresponding to the projection of the inner periphery of the glue groove 327 on the lamp panel 34. Only the inner periphery of the dark silk-screen layer 342 is shown in the figure, and the inner periphery of the dark silk-screen layer 342 is located outside the inner periphery of the light silk-screen layer 343. Finally, the light-evening ink is screen-printed to obtain the light-evening ink layer 341. Only the outer periphery of the light-evening ink layer 341 is shown in the figure. The light-evening ink layer 341 is located on the inner surface of the lamp panel 34 facing the inside of the lampshade 32, and the outer periphery of the light-evening ink layer 341 can overlap with the inner periphery of the dark silk-screen layer 342. The overlapping part of the light-evening ink layer 341 and the dark silk-screen layer 342 is located on the back of the dark silk-screen layer 342 away from the lamp panel 34. The light silk-screen layer 343 refers to a color that is lighter than the dark silk-screen layer 342, consistent with the color of the light-evening ink layer 341, and can also be white or gray.

[0052] Alternatively, the lighting device 3 may further include a light-diffusing plate 36, which is inserted into the space surrounded by the retaining ribs 326, and the light-diffusing plate 36 is limited by the retaining ribs 326. After the light-diffusing plate 36 is installed, the bottom surface of the retaining ribs 326 is lower than the bottom surface of the light-diffusing plate 36, the light-diffusing plate 36 is located above the lamp panel 34, and the lamp panel 34 is located below the retaining ribs 326.

[0053] Similarly, the influence of the adhesive track (the track is formed on the inner periphery of the adhesive groove 327) needs to be considered at this time (the colors of the dark silk-screen layer and the light silk-screen layer described below can be the same as the corresponding silk-screen layer described when there is no diffuser): ① If the silk-screen color is similar to the diffuser 36, that is, only the diffuser 36 is considered, then refer to Fig.12, showing the outline of the projection of the light-diffusing plate 36 on the lamp panel 34, firstly, a light-colored ink is screen-printed on the inner surface of the lamp panel 34 facing the inside of the lampshade 32 to obtain a light-colored screen-printed layer 343, and the light-colored screen-printed layer 343 extends inward from a position corresponding to the projection of the outer periphery of the glue groove 327 on the lamp panel 34 to cover a position corresponding to the projection of the inner periphery of the glue groove 327 on the lamp panel 34. Only the inner periphery of the light-colored screen-printed layer 343 is shown in the figure, and the inner periphery of the light-colored screen-printed layer 343 is located within the projection range of the light-diffusing plate 36, and then a darker ink is screen-printed on the back of the light-colored screen-printed layer 343 away from the lamp panel 34 to obtain a dark-colored screen-printed layer 342. The dark silk-screen layer 342 extends inward from the position corresponding to the projection of the outer periphery of the glue groove 327 on the light panel 34 to cover the position corresponding to the projection of the inner periphery of the glue groove 327 on the light panel 34. The figure only shows the inner periphery of the dark silk-screen layer 342 to cover the glue track, and the inner periphery of the dark silk-screen layer 342 does not exceed the inner periphery of the light silk-screen layer 343, that is, the inner periphery of the dark silk-screen layer 342 is located outside the inner periphery of the light silk-screen layer 343, so that when the lighting device is turned off, the entire surface of the light panel 34 looks like a color similar to the light-diffusing plate 36. When the lighting device is turned on, the glue track is covered to improve the overall refinement. ② If the silk-screen color is similar to the color of the mounting surface 25 of the smoke hood 2, if the mounting surface 25 is dark, refer to Fig.13 , showing the outline of the projection of the light-diffusing plate 36 on the lamp panel 34, the dark-colored silk-printed layer 342 can be obtained by directly silk-printing the inner surface of the lamp panel 34 toward the lampshade 32, and the dark-colored silk-printed layer 342 extends inward from the position corresponding to the projection of the outer periphery of the glue groove 327 on the lamp panel 34 to cover the position corresponding to the projection of the inner periphery of the glue groove 327 on the lamp panel 34, and only the inner periphery of the dark-colored silk-printed layer 342 is shown in the figure, and the inner periphery of the dark-colored silk-printed layer 342 is located within the projection range of the light-diffusing plate 36; if the mounting surface 25 is light-colored, refer to Fig.14, showing the projection of the light scattering plate 36 on the lamp panel 34, it is necessary to screen-print light-colored ink on the inner surface of the lamp panel 34 facing the lampshade 32 to obtain a light-colored screen-printed layer 343, and then the light-colored screen-printed layer 343 extends inward from a position corresponding to the projection of the outer periphery of the glue groove 327 on the lamp panel 34 to cover a position corresponding to the projection of the inner periphery of the glue groove 327 on the lamp panel 34. The figure only shows the inner periphery of the light-colored screen-printed layer 343, and the inner periphery of the light-colored screen-printed layer 343 is located within the projection range of the light scattering plate 36, and then screen-print darker ink on the back of the light-colored screen-printed layer 343 away from the lamp panel 34 to obtain a dark-colored screen-printed layer 34 2. The dark silk-screen layer 342 extends inward from a position corresponding to the projection of the outer periphery of the glue groove 327 on the lamp panel 34 to cover a position corresponding to the projection of the inner periphery of the glue groove 327 on the lamp panel 34. Only the inner periphery of the dark silk-screen layer 342 is shown in the figure to shield the glue track, and the inner periphery of the dark silk-screen layer 342 does not exceed the inner periphery of the light silk-screen layer 343, that is, the inner periphery of the dark silk-screen layer 342 is located outside the inner periphery of the light silk-screen layer 343, so that when the lighting device is turned off, the silk-screen on all sides is integrated with the mounting surface 25, and when the lighting device is turned on, the glue track is shielded to improve the overall refinement.

Claims

1. A lighting device for a range hood, comprising a lampshade (32), a lamp board (33) and a lamp panel (34) made of glass, wherein the lampshade (32) is in the shape of a box with an open bottom, a mounting cavity (322) is formed in the lampshade (32), and the lamp board (33) is fixed in the mounting cavity (322) of the lampshade (32), characterized in that: The lamp panel (34) is fixed to the bottom of the lampshade (32) by means of adhesive.

2. The lighting device for a range hood according to claim 1, characterized in that: The lampshade (32) comprises a cover body (323), the cover body (323) is in the shape of a box with an open bottom, the installation cavity (322) is formed in the cover body (323), the bottom of the cover body (323) extends outward for a certain distance and then bends downward, thereby forming a first folded edge (324) extending transversely and a second folded edge (325) extending longitudinally, the bottom of the first folded edge (324) extends downward to form a retaining rib (326), the lamp panel (34) is at least partially inserted into the space surrounded by the second folded edge (325), and the outer periphery of the lamp panel (34) is in contact with the inner wall surface of the second folded edge (325), the first folded edge (324), the second folded edge (325) and together form a glue groove (327) for gluing, and the retaining rib (326) is located on the lamp panel (34).

3. The lighting device for a range hood according to claim 2, characterized in that: The bottom surface of the second folded edge (325) is higher than the bottom surface of the lamp panel (34).

4. The lighting device for a range hood according to claim 2, characterized in that: The first folded edge (324) is provided with a glue overflow hole (3241).

5. A range hood, comprising a fume collecting hood (2), characterized in that: The lighting device according to any one of claims 1 to 4 is installed on a smoke hood (2), a mounting hole (22) is provided at the bottom of the smoke hood (2), the mounting hole (22) is a flanged hole, the lighting device further comprises a spring sheet (31) fixed on the lampshade (32), the lampshade (32) of the lighting device passes through the mounting hole (22), and the spring sheet (31) and the flanged edge of the mounting hole (22) are engaged and fixed.

6. The range hood according to claim 5, characterized in that: The flange of the mounting hole (22) comprises an upwardly extending transition portion (24) formed by the smoke collecting hood (2) at the edge of the mounting hole (22) and a connecting portion (23) extending laterally inward from the upper end of the transition portion (24), the connecting portion (23) being provided with an upwardly bent snap button (231), the spring sheet (31) being clamped on the outer side of the snap button (231) of the connecting portion (23).

7. A range hood, comprising a fume collecting hood (2), characterized in that: The lighting device according to any one of claims 2 to 4 is installed on a smoke hood (2), a mounting hole (22) is provided at the bottom of the smoke hood (2), a lampshade (32) of the lighting device passes through the mounting hole (22), and the inner surface of the lamp panel (34) facing the lampshade (32) has a light-homogenizing ink layer (341) for homogenizing light emitted by the lamp panel (33).

8. The range hood according to claim 7, characterized in that: The inner surface of the lamp panel (34) facing the inside of the lampshade (32) also has a dark silk-screen layer (342) whose color is darker than the light-homogenizing ink layer (341), and the dark silk-screen layer (342) extends inward from a position corresponding to the projection of the outer periphery of the glue groove (327) on the lamp panel (34) to a position corresponding to the projection of the inner periphery of the glue groove (327) on the lamp panel (34) to cover a position corresponding to the projection of the inner periphery of the glue groove (327) on the lamp panel (34).

9. The range hood according to claim 8, characterized in that: The light-distributing ink layer (341) covers the entire surface of the lamp panel (34), and the dark silk-screen layer (342) is located on the back side of the light-distributing ink layer (341) away from the lamp panel (34).

10. The range hood according to claim 8, characterized in that: The portion of the bottom of the smoke collecting hood (2) located around the mounting hole (22) is formed as a mounting surface (25), and the mounting surface (25) is a surface having the same color as the light-homogenizing ink layer (341) or the same color as the dark silk-screen layer (342); When the mounting surface (25) is a surface having the same color as the light-homogenizing ink layer (341), the inner surface of the lamp panel (34) facing the inside of the lampshade (32) further comprises a light-colored silk-screen layer (343) having the same color as the mounting surface (25), wherein the light-colored silk-screen layer (343) extends inwardly from a position corresponding to the projection of the outer periphery of the glue groove (327) on the lamp panel (34) to a position corresponding to the projection of the inner periphery of the glue groove (327) on the lamp panel (34), and the dark-colored silk-screen layer (342) is located on the light-colored silk-screen layer. (343) is away from the back of the lamp panel (34), and the inner periphery of the dark silk-printed layer (342) is located outside the inner periphery of the light silk-printed layer (343), the light-uniform ink layer (341) is located on the inner surface of the lamp panel (34) facing the inside of the lampshade (32), the outer periphery of the light-uniform ink layer (341) partially overlaps with the inner periphery of the dark silk-printed layer (342), and the overlapping portion of the light-uniform ink layer (341) and the dark silk-printed layer (342) is located on the back of the dark silk-printed layer (342) away from the lamp panel (34); When the mounting surface (25) is a surface having the same color as the dark silk-screen layer (342), the light-uniform ink layer (341) is located on the inner surface of the lamp panel (34) facing the lampshade (32), the outer periphery of the light-uniform ink layer (341) partially overlaps with the inner periphery of the dark silk-screen layer (342), and the overlapping portion of the light-uniform ink layer (341) and the dark silk-screen layer (342) is located on the back side of the dark silk-screen layer (342) away from the lamp panel (34).

11. A range hood, comprising a fume collecting hood (2), characterized in that: The lighting device according to any one of claims 2 to 4 is installed on a smoke hood (2), a mounting hole (22) is provided at the bottom of the smoke hood (2), and a lampshade (32) of the lighting device passes through the mounting hole (22); the lighting device also includes a light-distributing plate (36) located above the lamp panel (34), and the light-distributing plate (36) is arranged in a space surrounded by retaining ribs (326).

12. The range hood according to claim 11, characterized in that: The inner surface of the lamp panel (34) facing the lampshade (32) has a dark silk-printed layer (342) whose color is darker than that of the light-diffusing plate (36); the dark silk-printed layer (342) extends inward from a position corresponding to the projection of the outer periphery of the glue groove (327) on the lamp panel (34) to cover a position corresponding to the projection of the inner periphery of the glue groove (327) on the lamp panel (34); and the inner periphery of the dark silk-printed layer (342) is located within the projection range of the light-diffusing plate (36).

13. The range hood according to claim 12, characterized in that: The inner surface of the lamp panel (34) facing the lampshade (32) also has a light-colored silk-printed layer (343) whose color is consistent with that of the light-diffusing plate (36); the light-colored silk-printed layer (343) extends inward from a position corresponding to the projection of the outer periphery of the glue groove (327) on the lamp panel (34) to cover a position corresponding to the projection of the inner periphery of the glue groove (327) on the lamp panel (34); the inner periphery of the light-colored silk-printed layer (343) is located within the projection range of the light-diffusing plate (36); the dark-colored silk-printed layer (342) is on the back side of the light-colored silk-printed layer (343) away from the lamp panel (34); and the inner periphery of the dark-colored silk-printed layer (342) is located outside the inner periphery of the light-colored silk-printed layer (343).

14. The range hood according to claim 13, characterized in that: The portion of the bottom of the smoke collecting hood (2) located around the mounting hole (22) is formed as a mounting surface (25), and the mounting surface (25) is a surface having the same color as the light-diffusing plate (36) or the same color as the dark silk-screen layer (342); When the mounting surface (25) is a surface having the same color as the light-diffusing plate (36), the inner surface of the lamp panel (34) facing the inside of the lampshade (32) also has a light-colored silk-screen layer (343) having the same color as the mounting surface (25), and the light-colored silk-screen layer (343) extends inward from a position corresponding to the projection of the outer periphery of the glue groove (327) on the lamp panel (34) to cover a position corresponding to the projection of the inner periphery of the glue groove (327) on the lamp panel (34), the inner periphery of the light-colored silk-screen layer (343) is located within the projection range of the light-diffusing plate (36), the dark-colored silk-screen layer (342) is located on the back side of the light-colored silk-screen layer (343) away from the lamp panel (34), and the inner periphery of the dark-colored silk-screen layer (342) is located outside the inner periphery of the light-colored silk-screen layer (343).

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