Range hood with large-range illumination function

Abstract

The range hood comprises a range hood main body, the bottom of the range hood main body is provided with an air inlet and a panel lamp assembly located below the air inlet, the projection area of the panel lamp assembly in the gas suction direction completely covers the air inlet, and the range hood main body is provided with a shell part located on the periphery of the panel lamp assembly. An annular air inlet gap communicated with the air inlet is defined between the shell part and the panel lamp assembly. According to the range hood of the structure, the panel lamp assembly opposite to the air inlet is arranged at the bottom of the range hood body, when negative pressure suction force is generated in the range hood body, part of smoke flows upwards to make contact with the lower surface of the panel lamp assembly and then flows towards the air inlet gap, and part of smoke directly enters the air inlet gap so as to be sucked away through the air inlet; the panel lamp assembly serves as a flow guide plate of the range hood and also serves as a lighting lamp, the designable area of the panel lamp assembly is large, the irradiation range can be widened, and the large-area lighting function is achieved.

Description

TECHNICAL FIELD

[0001] The utility model relates to a large range lighting's range hood. BACKGROUND

[0002] At present, most of the range hoods on the market are equipped with lighting lamps, and generally, the lighting lamps are located at the lower end face of the front side edge of the range hood body to avoid the smoke inlet of the range hood body, since the smoke inlet occupies the main area of the range hood body, the size of the lighting lamp is small, and the irradiation area is small. Among them, the lighting lamp generally adopts the direct irradiation mode of LED light source to provide illumination, the position close to the LED light source has large brightness, and the position far away from the LED light source has small brightness, which easily leads to uneven light and insufficient illumination brightness, thereby causing poor user experience, and if the power of the LED light source is increased to increase the brightness, the problems of low energy efficiency and glaring light will occur. SUMMARY

[0003] The utility model aims at at least one of the technical problems existing in the prior art. To this end, the utility model provides a large range lighting's range hood, which uses a flat lamp assembly as a deflector and a lighting lamp, and can maximize the area of the flat lamp assembly to widen the irradiation range.

[0004] According to the large range lighting's range hood provided by the utility model, the bottom of the range hood body is provided with an air inlet and a flat lamp assembly located below the air inlet, the projection area of the flat lamp assembly along the direction of gas suction completely covers the air inlet, the range hood body has a shell part located at the outer periphery of the flat lamp assembly, and the shell part and the flat lamp assembly define an annular air inlet gap in communication with the air inlet.

[0005] The large range lighting's range hood provided by the utility model has at least the following beneficial effects:

[0006] The range hood with the above structure is provided with a flat lamp assembly opposite to the air inlet at the bottom of the range hood body, when the negative pressure suction force is generated in the range hood body, part of the smoke flows upward and contacts the lower surface of the flat lamp assembly and then flows toward the air inlet gap, and part of the smoke directly enters the air inlet gap and is then sucked away through the air inlet; the flat lamp assembly serves as both a deflector and a lighting lamp, the area of the flat lamp assembly can be designed to be large, which is beneficial to widening the irradiation range and realizing the function of large area illumination.

[0007] In some embodiments of the utility model, the flat lamp assembly comprises a back plate, a reflective paper, a light guide plate, a diffusion plate and a light transmission plate which are sequentially arranged from top to bottom, and the back plate and the diffusion plate accommodate a light emitting assembly therebetween.

[0008] In some embodiments of the utility model, the flat plate lamp assembly includes a circular ring support, the lower end of the circular ring support is provided with an annular supporting plate protruding from the inner circumferential wall thereof, the light emitting assembly is a ring-shaped side light emitting lamp strip arranged on the inner circumferential wall of the circular ring support, the back plate is mounted on the circular ring support to confine the reflective paper, the light guide plate and the diffusion plate between the back plate and the annular supporting plate, and the light emitted by the side light emitting lamp strip is horizontally directed to the outer circumferential wall of the light guide plate.

[0009] In some embodiments of the utility model, the surface of the light guide plate is uniformly covered with a plurality of rows and columns of spot-shaped light-transmitting recesses, the diameter of the light-transmitting recesses is d, 0.6mm≤d≤1mm is satisfied, and the distance between any two adjacent light-transmitting recesses is L, 1.5d≤L≤2.5d is satisfied.

[0010] In some embodiments of the utility model, a sponge pad layer is arranged between the back plate and the reflective paper to make the reflective paper, the light guide plate and the diffusion plate tightly adhere in sequence, and the diffusion plate is tightly pressed against the annular supporting plate.

[0011] In some embodiments of the utility model, one side of the circular ring support is rotationally connected to the range hood body through a horizontally arranged rotating shaft assembly, and the rotating shaft assembly has a damping structure.

[0012] In some embodiments of the utility model, a first connecting frame is fixedly arranged at the bottom of the range hood body, a second connecting frame is fixedly arranged on the outer side wall of the circular ring support, the rotating shaft assembly includes two one-way rotation dampers coaxially arranged on the second connecting frame, rotating pins of the two one-way rotation dampers are arranged face to face, and two anti-rotation mounting holes are arranged on the first connecting frame for the rotating pins to pass through.

[0013] In some embodiments of the utility model, the back plate is made of iron material, and a magnetic attraction column for adsorbing and stabilizing the back plate is arranged outside the air inlet at the bottom of the range hood body.

[0014] In some embodiments of the utility model, the circular ring support includes an inner circular ring wall, an outer circular ring wall and a circular ring plate formed between the inner circular ring wall and the outer circular ring wall, a circular ring groove is formed between the circular ring plate, the inner circular ring wall and the outer circular ring wall, a gesture sensing unit is arranged in the circular ring groove, the circular ring plate is provided with a hollow area corresponding to the gesture sensing unit, and the light-transmitting plate is attached to the lower end surface of the circular ring plate.

[0015] In some embodiments of the utility model, the gesture sensing unit includes first photoelectric sensor and second photoelectric sensor arranged on the annular plate, the hollow area includes first through hole corresponding to the first photoelectric sensor and second through hole corresponding to the second photoelectric sensor, the first photoelectric sensor, the second photoelectric sensor, the light emitting assembly are connected with control module to control the opening and closing of the light emitting assembly.

[0016] The additional aspects and advantages of the utility model will be partially given in the following description, some will become obvious from the following description, or be understood by the practice of the utility model. BRIEF DESCRIPTION OF DRAWINGS

[0017] The above and / or additional aspects and advantages of the utility model will become apparent and more readily appreciated from the following description of the embodiments, with reference to the following drawings, in which:

[0018] Figure 1 It is a structural schematic view of one embodiment of the range lighting range hood of the utility model;

[0019] Figure 2 It is Figure 1 It is a schematic view of the flat lamp assembly of the embodiment opening the air inlet;

[0020] Figure 3 It is Figure 1 It is a partial schematic view of the flat lamp assembly and the smoke machine main body of the embodiment separating;

[0021] Figure 4 It is a structural exploded schematic view of one embodiment of the flat lamp assembly;

[0022] Figure 5 It is a partial cross-sectional schematic view of one embodiment of the flat lamp assembly.

[0023] REFERENCE NUMERALS:

[0024] Smoke machine main body 100;Air inlet 110;Housing portion 120;Air gap 130;Flat lamp assembly 200;Back plate 210;Reflective paper 220;Light guide plate 230;Diffuser plate 240;Light transmission plate 250;Light emitting assembly 260;Annular support 270;Annular supporting plate 271;Annular groove 272;Sponge pad layer 280;Rotating shaft assembly 300;Rotating pin 310;First connecting frame 400;Anti-rotation mounting hole 410;Second connecting frame 500;Magnetic attraction column 600;First photoelectric sensor 710;Second photoelectric sensor 720;First through hole 730;Second through hole 740. DETAILED DESCRIPTION

[0025] The embodiments of the present application are described below in detail, examples of the embodiments are shown in the drawings, wherein the same or similar notations represent the same or similar elements or elements having the same or similar functions throughout. The embodiments described below by referring to the drawings are exemplary, only for explaining the present application, and cannot be understood as a limitation of the present application.

[0026] In the description of the present application, it should be understood that, in relation to the orientation description, for example, the orientation or position relationship indicated by the terms "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as a limitation of the present application.

[0027] In the description of the present application, the meaning of several is one or more, and the meaning of multiple is two or more, greater than, less than, more than, etc. are understood as not including the number, above, below, etc. are understood as including the number. If it is described as first, second, it is only for the purpose of distinguishing technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of indicated technical features or the sequence of indicated technical features.

[0028] In the description of the present application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connecting", "connection" should be understood in a broad sense, for example, it can be fixed connection, or detachable connection, or integrally connected; it can be mechanical connection, or electrical connection; it can be directly connected, or indirectly connected through an intermediate medium, or the communication inside two elements. For ordinary skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0029] Referring to Figure 1 and Figure 2 , the oil fume exhaust fan of the present application for large-scale lighting, comprising: a smoke machine main body 100, the bottom of the smoke machine main body 100 is provided with an air inlet 110 and a flat plate lamp assembly 200 located below the air inlet 110, the projection area of the flat plate lamp assembly 200 along the direction of gas suction completely covers the air inlet 110, the smoke machine main body 100 has a shell part 120 located at the outer periphery of the flat plate lamp assembly 200, the shell part 120 and the flat plate lamp assembly 200 define an annular air inlet gap 130 which is communicated with the air inlet 110.

[0030] The oil fume exhauster with the above structure is provided with the flat lamp assembly 200 opposite to the air inlet 110 at the bottom of the exhauster main body 100, when the negative pressure suction force is generated inside the exhauster main body 100, part of the smoke flows upward and contacts the lower surface of the flat lamp assembly 200 and then flows toward the air inlet gap 130, and part of the smoke directly enters the air inlet gap 130 and is then sucked away through the air inlet 110; the flat lamp assembly 200 serves as both a deflector of the oil fume exhauster and a lighting lamp, and the flat lamp assembly 200 can be designed to have a large area, which is beneficial to widening the illumination range and realizing the function of large-area lighting.

[0031] Referring to Figure 4 and Figure 5 In some embodiments of the utility model, the flat lamp assembly 200 includes the back plate 210, the light-reflecting paper 220, the light guide plate 230, the diffusion plate 240 and the light-transmitting plate 250 which are sequentially arranged from top to bottom, and the light-emitting assembly 260 is accommodated between the back plate 210 and the diffusion plate 240. It can be understood that part of the light emitted by the light-emitting assembly 260 is refracted by the light guide plate 230 and emitted toward the diffusion plate 240, the diffusion plate 240 avoids the concentration and glare of light and provides softer and more uniform illumination, and at the same time, it helps to improve the illuminance of the lamp and reduce energy consumption, part of the light emitted by the light-emitting assembly 260 is reflected by the light-reflecting paper 220 and then sequentially passes through the diffusion plate 240 and the light-transmitting plate 250, and the light-reflecting paper 220 can reduce the waste of light energy.

[0032] Referring to Figure 4 and Figure 5 In some embodiments of the utility model, the flat lamp assembly 200 includes the circular ring support 270, the lower end of the circular ring support 270 is provided with the annular supporting plate 271 which protrudes from the inner peripheral wall thereof, the light-emitting assembly 260 is the annular side light-emitting lamp strip arranged on the inner peripheral wall of the circular ring support 270, the back plate 210 is mounted on the circular ring support 270 to limit the light-reflecting paper 220, the light guide plate 230 and the diffusion plate 240 between the back plate 210 and the annular supporting plate 271, and the light emitted by the side light-emitting lamp strip horizontally toward the outer peripheral wall of the light guide plate 230. The thickness dimension of the flat lamp assembly 200 with the above structure is relatively thin, so that the flat lamp assembly 200 has a good effect of serving as a deflector of the oil fume exhauster and forms a good effect of gathering oil fume.

[0033] In some embodiments of the utility model, the surface of the light guide plate 230 is evenly covered with multiple rows and columns of spot-shaped light transmission recesses, the diameter size of the light transmission recess is d, satisfies 0.6mm≤d≤1mm, the distance between any two adjacent light transmission recesses is L, satisfies 1.5d≤L≤2.5d. It needs to be explained that the light transmission recess is generally formed on the surface of the light guide plate 230 by laser etching, and through experiments, when the light transmission recess satisfies the above size and layout conditions, the light transmission recess is beneficial to improve the uniformity of light, improve the light guide effect and increase the brightness.

[0034] Referring to Figure 4 and Figure 5 In some embodiments of the utility model, the back plate 210 and the light reflection paper 220 are provided with a sponge pad layer 280 for driving the light reflection paper 220, the light guide plate 230 and the diffusion plate 240 to be in close contact in sequence, so that the diffusion plate 240 is tightly pressed on the annular supporting plate 271. It needs to be explained that the sponge pad layer 280 and the annular supporting plate 271 cooperate to clamp the light reflection paper 220, the light guide plate 230 and the diffusion plate 240, avoid relative movement between parts, and the sponge pad layer 280 can also prevent light leakage.

[0035] Referring to Figure 3 and Figure 4 In some embodiments of the utility model, one side of the circular ring support 270 is rotatably connected to the smoke machine body 100 through the horizontally arranged rotating shaft assembly 300, and the rotating shaft assembly 300 has a damping structure. It can be understood that when it is necessary to open the air inlet 110 for cleaning or to maintain the inside of the smoke machine body 100, the user exerts force on the flat lamp assembly 200 to rotate around the rotating shaft assembly 300, and the flat lamp assembly 200 can slowly swing downward relative to the smoke machine body 100 to open the air inlet 110, avoiding rapid opening to make the light transmission plate 250 of the flat lamp assembly 200 collide with the smoke machine body 100.

[0036] Referring to Figure 3 and Figure 4In some embodiments of the utility model, the bottom of the smoke machine body 100 is fixedly provided with a first connecting frame 400, the outer side wall of the circular ring support 270 is fixedly provided with a second connecting frame 500, the rotating shaft assembly 300 comprises two one-way rotation dampers coaxially arranged on the second connecting frame 500, the rotating pins 310 of the two one-way rotation dampers are arranged face to face, and the first connecting frame 400 is provided with two anti-rotation mounting holes 410 for the rotating pins 310. Specifically, the cross-sectional shape of the rotating pin 310 is non-circular, the shape of the anti-rotation mounting hole 410 is consistent with the cross-sectional shape of the rotating pin 310, when the rotating pin 310 of the one-way rotation damper rotates, the damping oil in the one-way rotation damper flows, and the viscosity of the damping oil generates resistance, thereby slowing down the rotation speed.

[0037] Referring to Figure 2 In some embodiments of the utility model, the back plate 210 is composed of iron material, and the bottom of the smoke machine body 100 is provided with a magnetic attraction column 600 outside the air inlet 110 for adsorbing and stabilizing the back plate 210. That is, when the flat lamp assembly 200 closes the air inlet 110, the magnetic attraction column 600 has a magnetic attraction effect on the back plate 210, avoiding the flat lamp assembly 200 from swinging downward under its own gravity, reducing the load of the one-way rotation damper, and being beneficial to prolonging the service life.

[0038] Referring to Figure 4 In some embodiments of the utility model, the circular ring support 270 comprises an inner circular ring wall, an outer circular ring wall and a circular ring plate formed between the inner circular ring wall and the outer circular ring wall, a circular ring groove 272 is surrounded between the circular ring plate, the inner circular ring wall and the outer circular ring wall, a gesture sensing unit is arranged in the circular ring groove 272, the circular ring plate is provided with a hollow area corresponding to the gesture sensing unit, and the light-transmitting plate 250 is attached to the lower end surface of the circular ring plate. The gesture sensing unit can be used to control the opening and closing of the light-emitting assembly 260, without the need for contact operation, convenient to use, and the gesture sensing unit is located in the circular ring groove 272, so that the structural compactness of the flat lamp assembly 200 can be improved.

[0039] Referring to Figure 4In some embodiments of the utility model, the gesture sensing unit includes first photoelectric sensor 710 and second photoelectric sensor 720 arranged at intervals on the annular plate, the hollow region includes first through hole 730 corresponding to the first photoelectric sensor 710 and second through hole 740 corresponding to the second photoelectric sensor 720, the first photoelectric sensor 710, the second photoelectric sensor 720, the light emitting assembly 260 are all connected with control module to control the opening and closing of the light emitting assembly 260. It can be understood that when the user's arm swings clockwise or counterclockwise, the user's palm will pass through the first photoelectric sensor 710 and the second photoelectric sensor 720 in turn or pass through the second photoelectric sensor 720 and the first photoelectric sensor 710 in turn, according to whether the first photoelectric sensor 710 is passed first or the second photoelectric sensor 720 is passed first, it can be judged that the user's arm produces which clockwise swing, and then the control module is used to control the light emitting assembly 260 to open or close.

[0040] The technical features of the above embodiments can be combined arbitrarily, to make the description simple, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combination of the technical features does not exist contradictory, it should be considered that the range of the present application is recorded.

[0041] Although the embodiments of the utility model have been shown and described, those skilled in the art can understand that: without departing from the principles and purposes of the utility model, a variety of changes, modifications, replacements and variations can be made to these embodiments, the scope of the utility model is defined by the claims and its equivalents.

Claims

1. A large range lighting range hood, characterized by, The range hood comprises a range hood body (100) having an air inlet (110) and a flat lamp assembly (200) located below the air inlet (110), the flat lamp assembly (200) completely covering the projection area of the air inlet (110) along the direction of air suction, and the range hood body (100) having a housing portion (120) located at the outer periphery of the flat lamp assembly (200), the housing portion (120) and the flat lamp assembly (200) defining an annular air gap (130) in communication with the air inlet (110).

2. The range hood according to claim 1, wherein the flat lamp assembly (200) comprises a back plate (210), a reflective paper (220), a light guide plate (230), a diffusion plate (240) and a light transmission plate (250) arranged in sequence from top to bottom, and a light emitting assembly (260) is accommodated between the back plate (210) and the diffusion plate (240).

3. The range hood according to claim 2, wherein the flat lamp assembly (200) comprises a circular ring support (270) having an annular supporting plate (271) protruding from the inner peripheral wall thereof, and the light emitting assembly (260) is a ring-shaped side light emitting lamp strip arranged on the inner peripheral wall of the circular ring support (270), the back plate (210) is mounted on the circular ring support (270) to define the reflective paper (220), the light guide plate (230) and the diffusion plate (240) between the back plate (210) and the annular supporting plate (271), and the light emitted by the side light emitting lamp strip is horizontally directed to the outer peripheral wall of the light guide plate (230).

4. The range hood according to claim 3, wherein the surface of the light guide plate (230) is uniformly covered with a plurality of rows and columns of spot-shaped light transmission recesses, the diameter of the light transmission recesses is d, and 0.6mm≤d≤1mm, and the distance between any two adjacent light transmission recesses is L, and 1.5d≤L≤2.5d.

5. The range hood according to claim 3, wherein a sponge pad layer (280) is arranged between the back plate (210) and the reflective paper (220) to tightly press the reflective paper (220), the light guide plate (230) and the diffusion plate (240) in sequence, so that the diffusion plate (240) is tightly pressed against the annular supporting plate (271).

6. The range hood according to claim 3, wherein one side of the circular ring support (270) is rotatably connected to the range hood body (100) through a horizontal shaft assembly (300), and the shaft assembly (300) has a damping structure.

7. The range hood according to claim 6, wherein ​ ​ ​ ​ ​ ​ The bottom of the smoke machine body (100) is fixedly provided with a first connecting frame (400), and the outer side wall of the circular ring support (270) is fixedly provided with a second connecting frame (500). The rotating shaft assembly (300) comprises two one-way rotation dampers coaxially arranged on the second connecting frame (500). The rotating pins (310) of the two one-way rotation dampers are arranged face to face. The first connecting frame (400) is provided with two anti-rotation mounting holes (410) for the rotating pins (310) to pass through, respectively.

8. The smoke machine according to claim 7, characterized in that: The back plate (210) is made of iron material, and the bottom of the smoke machine body (100) is provided with a magnetic attraction column (600) outside the air inlet (110) for adsorbing and stabilizing the back plate (210).

9. The smoke machine according to claim 3, characterized in that: The circular ring support (270) comprises an inner circular ring wall, an outer circular ring wall, and a circular ring plate formed between the inner circular ring wall and the outer circular ring wall. The circular ring plate, the inner circular ring wall, and the outer circular ring wall form a circular ring groove (272) therebetween. A gesture sensing unit is arranged in the circular ring groove (272). The circular ring plate is provided with a hollow area corresponding to the gesture sensing unit. The light-transmitting plate (250) is attached to the lower end surface of the circular ring plate.

10. The smoke machine according to claim 9, characterized in that: The gesture sensing unit comprises a first photoelectric sensor (710) and a second photoelectric sensor (720) arranged at intervals on the circular ring plate. The hollow area comprises a first through hole (730) corresponding to the first photoelectric sensor (710) and a second through hole (740) corresponding to the second photoelectric sensor (720). The first photoelectric sensor (710), the second photoelectric sensor (720), and the light-emitting assembly (260) are connected to a control module to control the opening and closing of the light-emitting assembly (260).

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