Range hood

Abstract

The range hood comprises an exhaust fume collecting hood, a gesture lamp module is arranged at the bottom of the exhaust fume collecting hood, and the gesture lamp module comprises a seat body, an exhaust fume collecting hood, a gesture lamp module and a gesture lamp module, and an opening is formed in the bottom surface of the seat body; the gesture PCB and the lamp panel are arranged in two independent cavities in the seat body; the cover plate is arranged at the opening of the bottom surface of the seat body and corresponds to the lamp panel in position; and the sensor is used for recognizing gestures, is arranged on the lower surface of the cover plate and is electrically connected with the gesture PCB. Compared with the prior art, the utility model has the advantages that the gesture module and the lighting module are integrated, so that the cost is reduced, the assembly efficiency is improved, the damage to a mounting plane is reduced, and the overall strength is improved.

Description

Technical Field

[0001] The utility model relates to an oil fume purification device, in particular to an oil fume extractor. 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] For a lift-type range hood that needs to be fully enclosed in a cabinet, a gesture function module is generally provided at the bottom of the smoke hood to lower the range hood, so that the touch switch on the front side of the range hood is lowered to a state where the user can control it, and a lighting lamp as a basic function is generally provided separately at the bottom of the smoke hood. For example, a concealed range hood is disclosed in Chinese patent application number 202321037545.0.

[0004] In the above-mentioned existing range hood, the gesture sensing module and the lighting module are arranged separately, which is not conducive to cost saving. At the same time, in order to adapt to the gesture and lighting structure, a corresponding installation groove needs to be opened at the bottom of the smoke hood. On the one hand, the integrity of the bottom plane is destroyed and the refinement is reduced. On the other hand, the installation groove structure reduces the overall strength of the smoke hood, which is more obvious in particular for the smoke hood with a lower height. Utility Model Content

[0005] The technical problem to be solved by the utility model is to provide a range hood in view of the deficiencies in the above-mentioned prior art, which integrates a gesture module and a lighting module, reduces costs, improves assembly efficiency, and at the same time reduces damage to the installation plane and improves overall strength.

[0006] The technical solution adopted by the utility model to solve the above technical problems is: a range hood, including a fume hood, characterized in that: a gesture light module is provided at the bottom of the fume hood, and the gesture light module includes:

[0007] A seat body, the bottom surface of which is open;

[0008] The gesture PCB board and the light board are set in two independent cavities in the base body;

[0009] A cover plate, which is arranged at the opening of the bottom surface of the base body and corresponds to the position of the light board; and

[0010] The sensor for identifying gestures is arranged on the lower surface of the cover plate and is electrically connected to the gesture PCB board.

[0011] Integrating the gesture module and the lighting module can reduce costs and improve assembly efficiency, while reducing damage to the installation plane and improving overall strength.

[0012] To facilitate the independent setting of the gesture PCB board and the light board, the base body includes an upper cover plate and a lower cover plate, the upper cover plate is arranged on the lower cover plate, and an installation cavity is formed between the upper cover plate and the lower cover plate, the gesture PCB board is arranged in the installation cavity, a cavity is formed in the lower part of the lower cover plate, the cavity is independent of the installation cavity, the light board is arranged in the cavity, and the lower cover plate has an opening at a position corresponding to the bottom surface of the cavity.

[0013] Furthermore, the lower cover plate is formed with a boss on the top of the cavity, thereby preventing the lower cover plate of the lamp board from being tightly attached, which is beneficial to the avoidance and heat dissipation of the lamp board welding structure.

[0014] In order to make the light of the lamp board uniform, the gesture lamp module further includes a light emitting plate, and the light emitting plate is arranged between the lamp board and the cover plate.

[0015] In order to facilitate fixing the lamp board in the cavity, the upper surface of the light-distributing plate is recessed downward to form a groove, and the shape and size of the lamp board are respectively adapted to the groove, so that part of the lamp board is placed in the groove and limited by the groove.

[0016] Furthermore, a first buckle corresponding to the slot formed in the cavity of the lower cover is disposed around the light diffuser, so that the light diffuser is fixed to the lower cover by snapping, thereby the light diffuser can be installed without auxiliary fasteners.

[0017] In order to facilitate the fixation of the cover plate with the lower cover plate during installation, a circle of glue grooves for gluing is formed around the bottom of the lower cover plate, the outer peripheral wall of the glue groove is lower than the inner peripheral wall of the glue groove, and the cover plate is limited to the inner periphery of the outer peripheral wall of the glue groove, so that the lower cover plate and the cover plate are fixed by gluing in the glue groove.

[0018] In order to further fix the cover plate, an annular fixing plate is arranged at the bottom of the cover plate, and the fixing plate is fixed to the lower cover plate.

[0019] Furthermore, the fixing plate is provided with a second buckle along the periphery, and a avoidance groove is formed on the lower cover plate. The second buckle and the avoidance groove cooperate to enable the fixing plate and the lower cover plate to be clamped and fixed, thereby completing the installation of the fixing plate without auxiliary fasteners.

[0020] Furthermore, in order to facilitate the electrical connection between the sensor and the gesture PCB board and avoid affecting the light output of the light board, a wire threading hole is opened in the part of the lower cover plate located outside the periphery of the cavity, the position of the sensor corresponds to the wire threading hole, and the wire of the sensor passes through the wire threading hole and is electrically connected to the gesture PCB board.

[0021] Furthermore, in order to facilitate the wire outlet of the gesture PCB board and the light board, the lower cover plate is also provided with a first wire outlet and a second wire outlet, and the wires of the light board and the gesture PCB board are respectively led out from one of the wire outlets.

[0022] To facilitate installation of the gesture light module, a mounting hole for installing the gesture light module is provided at the bottom of the smoke collecting hood.

[0023] In order to facilitate the installation of the gesture light module to the installation hole, the gesture light module also includes a spring piece for installing the seat body, and the spring piece is fixed to the position of the smoke collecting hood located at the periphery of the installation hole.

[0024] Furthermore, the range hood includes an upper box and a lower box, the lower box is at least partially located below the upper box and can be raised and lowered relative to the upper box, and the smoke hood is arranged at the bottom of the lower box, thereby realizing gesture control of the raised state of the lower box.

[0025] Compared with the prior art, the advantages of the present invention are: integrating the gesture module and the lighting module, reducing costs, improving assembly efficiency, and reducing damage to the installation plane, thereby improving overall strength. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 A schematic diagram of a range hood according to an embodiment of the utility model;

[0027] Figure 2 It is an assembly cross-sectional view of a smoke collecting hood and a gesture light module of a range hood according to an embodiment of the utility model;

[0028] Figure 3 A schematic diagram of a gesture light module of a range hood according to an embodiment of the utility model;

[0029] Figure 4 It is a cross-sectional view of a gesture light module of a range hood according to an embodiment of the utility model;

[0030] Figure 5 This is a schematic diagram of the exploded structure of the gesture light module of the range hood according to an embodiment of the utility model;

[0031] Figure 6 It is a schematic diagram of the lower cover of the gesture light module of the range hood according to an embodiment of the utility model;

[0032] Figure 7 It is a schematic diagram of a light diffuser of a gesture light module of a range hood according to an embodiment of the utility model. DETAILED DESCRIPTION

[0033] 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.

[0034] 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.

[0035] See also Figure 1 to Figure 7 A range hood includes an upper box body 1 and a lower box body 2. The lower box body 2 can be raised and lowered relative to the upper box body 1. The lower box body 2 is at least partially located below the upper box body 1, and the lower box body 2 covers the outer periphery of the corresponding part of the upper box body 1. A fan system (not shown) can be arranged in the upper box body 1 to provide power for extracting oil smoke. A smoke hood 3 is arranged at the bottom of the lower box body 2. The smoke hood 3 is a flat rectangle, so that the lower box body 2 and the smoke hood 3 can be hidden in the cabinet when the machine is in the raised and closed state. An interactive control module 21, such as a touch screen, a button, etc., can be arranged on the front side of the lower box body 2.

[0036] An air inlet 31 is provided at the bottom of the smoke hood 3, and the range hood further comprises a gesture light module 4 arranged at the bottom of the smoke hood 3, and the gesture light module 4 is preferably located in front of the air inlet 31. The gesture light module 4 comprises a spring 41, an upper cover 42, a gesture PCB board 43, a lower cover 44, a light board 45, a light-diffusing board 46 and a fixing plate 47. The upper cover 42 is covered on the lower cover 44, and the upper cover 42 and the lower cover 44 cooperate to form an installation cavity 421, and the above-mentioned gesture PCB board 43 is installed in the installation cavity 421. The upper cover 42 and the lower cover 44 are provided with corresponding fixing structures, which can be fixed to each other by means of screws or the like. Considering the subsequent anti-mistake requirements, the position of the fixing structure is not completely symmetrical. The upper cover 42 and the lower cover 44 constitute a seat for installing other components. The spring piece 41 is installed on the upper cover plate 42 , and may be in a U-shape with its opening facing downward, and is buckled on both sides of the upper cover plate 42 in the width direction. The two bottoms of the spring piece 41 may be used for subsequent installation and fixation with the smoke collecting hood 3 .

[0037] A cavity 441 for installing the light board 45 is formed in the lower part of the lower cover 44. The cavity 441 is independent of the installation cavity 421 and can reduce light decay. The lower cover 44 corresponds to the bottom opening of the cavity 441. Considering the avoidance and heat dissipation of the welding structure on the rear side of the light board 45, the lower cover 44 is formed with a boss 442 at the top of the cavity 441 to prevent the top of the light board 45 and the wall of the lower cover 44 at the top of the cavity 441 from being tightly attached. The light-distributing plate 46 is concave in shape as a whole, that is, the light board 46 is concave downward from the upper surface to form a groove 461, and the shape and size of the light board 45 are respectively adapted to the groove 461. The overall size of the light board 46 is relatively small compared to the cavity 441 of the lower cover 44. During installation, the light board 45 is placed in the cavity 441 first, and then the light-distributing plate 46 is placed. The light board 45 corresponds to the groove 461 of the light-distributing plate 46, and is partially placed in the groove 461. The groove 461 can be used to limit the light board 45 and fix it in the cavity 441.

[0038] The light diffuser 46 is provided with a first buckle 462 corresponding to the slot 443 of the lower cover 44 in the cavity 441, so that the installation without auxiliary fasteners is realized. Considering the gluing and fixing of the lower cover 44 and the cover plate 48 (to be described in detail below), the bottom surface of the light diffuser 46 does not protrude downward from the bottom of the lower cover 44.

[0039] A ring-shaped glue groove 444 for gluing is formed around the bottom of the lower cover plate 44. The outer peripheral wall 445 of the glue groove 444 is lower than the inner peripheral wall 446 of the glue groove 444. The gesture light module 4 also includes a cover plate 48, which is arranged at the opening of the bottom surface of the lower cover plate 44, corresponding to the position of the light board 45. Its length can be longer than the light board 45, so as to set the sensor 49 (which will be described in detail below). The cover plate 48 is limited to the inner periphery of the outer peripheral wall 445 of the glue groove 444, ensuring the initial fixation of the cover plate 48 during gluing. At the same time, there is a certain gap between the side of the cover plate 48 and the outer peripheral wall 445. On the one hand, this gap realizes the overflow of glue during gluing and ensures the reliability of gluing. At the same time, the outer peripheral wall 445 forms a downward overflow glue guiding structure to guide the glue to the bottom, which does not affect the upper plane of the upper cover plate 42 and the subsequent installation flatness requirements of the whole machine, thereby improving the reliability of the installation. The cover plate 48 is in the form of a glass plate in this embodiment.

[0040] An annular fixing plate 47 structure is provided at the bottom of the cover plate 48, and the outer periphery of the fixing plate 47 completely wraps the outer side of the lower cover plate 44, and the fixing plate 47 is fixed to the lower cover plate 44, and further fixes the cover plate 48 and the lower cover plate 44. The fixing plate 47 can be fixed by a deformable second buckle 471 provided along the periphery and the avoidance groove 447 at the corresponding position of the lower cover plate 44. While ensuring the strength requirements of the overall installation structure, it does not affect the flatness requirements of the lower cover plate 44 and the whole machine installation.

[0041] The cover plate 48 can be used as a lampshade, and a sensor 49 for gesture recognition can be set on the lower surface of the cover plate 48. The sensor 49 can be an existing photoelectric sensor, distance sensor, etc. A threading hole 449 is provided in the portion between the glue groove 444 and the cavity 441 in the lower cover plate 44 (outside the periphery of the cavity 441) so that the wire of the sensor 49 can pass through the threading hole 449 and be electrically connected to the gesture PCB board 43. In this way, gestures can be recognized when the lower box 2 is in the upturned state. The position of the sensor 49 corresponds to the threading hole 449 to avoid affecting the light output of the lamp board 45.

[0042] The lower cover 44 is also provided with a first wire outlet 4481 and a second wire outlet 4482. The wires of the light board 45 and the gesture PCB board 43 are led out from one of the wire outlets to be connected to the electrical box usually arranged on the top of the range hood. Each wire outlet can be sealed by gluing after installation. The sealing and fixing of the upper cover 42 and the lower cover 44 can be achieved by ultrasonic welding or gluing.

[0043] A mounting hole 32 is provided at the bottom of the smoke hood 3. A mounting portion 33 extending laterally (such as horizontally) and a transition portion 34 extending downward from the periphery of the mounting portion 33 are formed at the edge of the mounting hole 32. The bottom of the transition portion 34 is integrated with other bottom portions of the smoke hood 3.

[0044] During installation, the spring piece 41, the upper cover plate 42 and the lower cover plate 44 can pass through the installation hole 32 and enter the smoke hood 3, and the glue groove 441 of the lower cover plate 44 is located below the installation portion 33. The spring piece 41 can be stuck on the installation portion 33 or the transition portion 34, and it is very convenient to disassemble and assemble. The periphery of the fixing plate 47 does not exceed the installation portion 33.

Claims

1. A range hood, comprising a fume collecting hood (3), characterized in that: A gesture light module (4) is provided at the bottom of the smoke collecting hood (3), and the gesture light module (4) comprises: A seat body, the bottom surface of which is open; The gesture PCB board (43) and the light board (45) are arranged in two independent cavities in the base body; A cover plate (48) is arranged at the opening of the bottom surface of the seat body and corresponds to the position of the light board (45); and A sensor (49) for identifying gestures is arranged on the lower surface of the cover plate (48) and is electrically connected to the gesture PCB board (43).

2. The range hood according to claim 1, characterized in that: The base body comprises an upper cover plate (42) and a lower cover plate (44); the upper cover plate (42) is covered on the lower cover plate (44); a mounting cavity (421) is formed between the upper cover plate (42) and the lower cover plate (44); the gesture PCB board (43) is arranged in the mounting cavity (421); a cavity (441) is formed in the lower part of the lower cover plate (44); the cavity (441) is independent of the mounting cavity (421); the lamp board (45) is arranged in the cavity (441); and the lower cover plate (44) is opened at a position corresponding to the bottom surface of the cavity (441).

3. The range hood according to claim 2, characterized in that: The lower cover plate (44) is formed with a boss (442) at the top of the cavity (441).

4. The range hood according to claim 2, characterized in that: The gesture light module (4) further comprises a light scattering plate (46), wherein the light scattering plate (46) is arranged between the light plate (45) and the cover plate (48).

5. The range hood according to claim 4, characterized in that: The upper surface of the light homogenizing plate (46) is recessed downward to form a groove (461), and the shape and size of the light board (45) are respectively adapted to the groove (461), so that part of the light board (45) is placed in the groove (461) and is limited by the groove (461).

6. The range hood according to claim 4, characterized in that: The light-dispersing plate (46) is provided with a first buckle (462) corresponding to a clamping groove (443) provided in the cavity (441) of the lower cover plate (44) around its periphery, so that the light-dispersing plate (46) is clamped and fixed to the lower cover plate (44).

7. The range hood according to claim 2, characterized in that: A circle of glue groove (444) for gluing is formed around the bottom periphery of the lower cover plate (44), the outer peripheral wall (445) of the glue groove (444) is lower than the inner peripheral wall (446) of the glue groove (444), and the cover plate (48) is limited to the inner periphery of the outer peripheral wall (445) of the glue groove (444), so that the lower cover plate (44) and the cover plate (48) are fixed by gluing in the glue groove (444).

8. The range hood according to claim 7, characterized in that: An annular fixing plate (47) is provided at the bottom of the cover plate (48), and the fixing plate (47) is fixed to the lower cover plate (44).

9. The range hood according to claim 8, characterized in that: The fixing plate (47) is provided with a second buckle (471) along the periphery, and a avoiding groove (447) is formed on the lower cover plate (44), and the second buckle (471) cooperates with the avoiding groove (447) to enable the fixing plate (47) and the lower cover plate (44) to be connected and fixed.

10. The range hood according to claim 2, characterized in that: A threading hole (449) is provided in a portion of the lower cover plate (44) located outside the periphery of the cavity (441); the position of the sensor (49) corresponds to the threading hole (449); and the wire of the sensor (49) passes through the threading hole (449) and is electrically connected to the gesture PCB board (43).

11. The range hood according to claim 2, characterized in that: The lower cover plate (44) is also provided with a first wire outlet (4481) and a second wire outlet (4482), and the wires of the light board (45) and the gesture PCB board (43) are led out from one of the wire outlets respectively.

12. The range hood according to claim 1, characterized in that: The bottom of the smoke collecting hood (3) is provided with a mounting hole (32) for mounting a gesture light module (4).

13. The range hood according to claim 12, characterized in that: The gesture light module (4) further comprises a spring piece (41) for mounting the seat body, and the spring piece (41) is fixed to the smoke collecting hood (3) at a position located on the periphery of the mounting hole (32).

14. The range hood according to any one of claims 1 to 13, characterized in that: The range hood further comprises an upper box body (1) and a lower box body (2); the lower box body (2) is at least partially located below the upper box body (1) and can be raised and lowered relative to the upper box body (1); and the fume collecting hood (3) is arranged at the bottom of the lower box body (2).

Images