Smoke collecting device and range hood

Abstract

The utility model provides a fume collecting device and a range hood, and relates to the technical field of kitchen appliances, the fume collecting device provided by the utility model comprises a fume collecting hood and a switch module, the bottom surface of the fume collecting hood is provided with an inward concave groove, and the inner wall of the groove is provided with a first air inlet communicated with the inner side and the outer side of the fume collecting hood in a penetrating manner; the switch module is rotationally connected with the exhaust fume collecting hood, so that the switch module can be switched between a first state and a second state, and in the first state, the switch module is located on the inner side of the groove and shields the first air inlet; and in the second state, the switch module is located on the outer side of the groove, and the first air inlet is opened.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a smoke collection device and a range hood. Background Technology

[0002] As an essential appliance in modern kitchens, range hoods primarily function to improve the cooking environment and reduce the health impact of cooking fumes by extracting and exhausting them. Current range hood technology typically includes a fume hood and a control module, which controls functions such as starting the range hood and adjusting the fan speed. For ease of operation, the control module is usually suspended from the bottom of the fume hood, which also has an air inlet located behind the control module to draw in the cooking fumes.

[0003] In practical use, the bottom surface of the range hood's fume collection hood easily accumulates grease and requires regular cleaning to ensure the equipment's normal operation and kitchen hygiene. However, because the switch module uses a suspended design, its position occupies part of the space under the fume collection hood. This not only affects the operating range of cleaning tools but may also cause accidental damage to the switch module during cleaning. Therefore, the suspended switch module makes cleaning the bottom surface of the fume collection hood inconvenient. Utility Model Content

[0004] The purpose of this utility model is to provide a smoke collection device and a range hood to alleviate the technical problem that the bottom surface of the smoke collection hood of existing range hoods with hanging switch modules is inconvenient to clean.

[0005] In a first aspect, the present invention provides a smoke collection device, comprising:

[0006] The smoke hood has an inwardly recessed groove on its bottom surface, and a first air inlet that runs through and connects the inside and outside of the smoke hood on the inner wall of the groove.

[0007] The switch module is rotatably connected to the smoke hood so that the switch module can switch between a first state and a second state. In the first state, the switch module is located inside the groove and blocks the first air inlet; in the second state, the switch module is located outside the groove and the first air inlet is open.

[0008] Furthermore, in the second state, the front of the switch module faces forward;

[0009] In the first state, the front of the switch module is flush with the bottom of the smoke hood.

[0010] Furthermore, the shape and size of the circumferential outer sidewall of the switch module are adapted to the shape and size of the circumferential inner sidewall of the groove.

[0011] Furthermore, the smoke collection device also includes a drive mechanism, the fixed part of which is connected to the smoke collection hood;

[0012] The moving part of the drive mechanism is connected to the switch module to drive the switch module to rotate relative to the smoke hood.

[0013] Furthermore, the switch module includes a rotating bracket, which is connected to the movable part of the drive mechanism;

[0014] The top outer wall of the rotating bracket is semi-circular so that the top of the switch module is always tangent to the inner wall of the groove during the flipping process.

[0015] Furthermore, the drive mechanism includes a drive motor, a connecting seat, and a rotating shaft, with the drive shaft of the drive motor connected to the switch module;

[0016] The connecting base is connected to the smoke hood, one end of the rotating shaft is rotatably connected to the connecting base, and the other end is connected to the switch module. The rotating shaft and the drive shaft are coaxially arranged.

[0017] Furthermore, both the drive shaft and the rotating shaft of the drive motor are provided with non-cylindrical sections; both ends of the switch module are provided with non-circular holes corresponding to the non-cylindrical sections, and the non-cylindrical sections are inserted into the non-circular holes so that the drive shaft, the rotating shaft of the drive motor and the switch module move synchronously in the rotation direction.

[0018] Furthermore, the switch module includes at least one of a hand gesture sensing module and a touch sensing module.

[0019] Furthermore, the inside of the smoke hood is equipped with an oil baffle plate located above the first air inlet.

[0020] Furthermore, the inner wall of the smoke hood is provided with an inwardly protruding flange, which surrounds the first air inlet.

[0021] Furthermore, from front to back, the bottom surface of the smoke hood slopes downwards.

[0022] Furthermore, the smoke hood includes a top and a side, with the side connected to the bottom of the top of the smoke hood, and the groove and switch module are both located on the top;

[0023] A second air inlet is provided on the side, as well as a flap assembly for opening and closing the second air inlet.

[0024] Secondly, the present invention provides a range hood that includes the aforementioned smoke collection device.

[0025] This utility model has at least the following advantages or beneficial effects:

[0026] The smoke collection device provided by this utility model includes: a smoke collection hood and a switch module. The bottom surface of the smoke collection hood is provided with an inwardly recessed groove, and the inner wall of the groove is provided with a first air inlet that penetrates and connects the inner and outer sides of the smoke collection hood. The switch module is rotatably connected to the smoke collection hood so that the switch module can switch between a first state and a second state. In the first state, the switch module is located inside the groove and the switch module blocks the first air inlet. In the second state, the switch module is located outside the groove and the first air inlet is open.

[0027] When the range hood is working, the switch module is in its second state, with the first air inlet open. The switch module, located on the outside of the recess, is easily accessible for user control. When the range hood stops working, the switch module can be rotated to retract into the recess, effectively hiding it. Without the switch module obstructing the view, the bottom of the smoke collection hood can be cleaned more easily. Simultaneously, in its first state, the switch module blocks the first air inlet, preventing odors from spreading outwards from inside the smoke collection hood.

[0028] The range hood provided by this utility model includes the aforementioned smoke collection device. Because the range hood provided by this utility model incorporates the aforementioned smoke collection device, it also possesses the advantages of a smoke collection device. Attached Figure Description

[0029] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0030] Figure 1 A front view of a range hood provided in an embodiment of this utility model;

[0031] Figure 2 A side view of a range hood provided for an embodiment of this utility model;

[0032] Figure 3 A schematic diagram of a range hood provided for an embodiment of this utility model;

[0033] Figure 4 A side view of a cross-sectional view of a range hood provided in an embodiment of this utility model (with the flap assembly closed);

[0034] Figure 5 A side view of a cross-sectional view of a range hood provided in an embodiment of this utility model (with the flap assembly open);

[0035] Figure 6A schematic diagram of the internal structure of the smoke collection device provided in this embodiment of the utility model (drive mechanism not installed);

[0036] Figure 7 for Figure 6 A magnified view of a portion of position A in the middle;

[0037] Figure 8 for Figure 6 A magnified view of a portion of position B in the middle;

[0038] Figure 9 for Figure 6 A magnified view of the area at position C in the middle;

[0039] Figure 10 A schematic diagram of the switch module of the smoke collection device provided in the embodiment of this utility model;

[0040] Figure 11 The control logic flowchart of the smoke collection device provided in the embodiment of this utility model.

[0041] Icons: 1 - Smoke hood; 11 - Top; 111 - Recess; 112 - First air inlet; 113 - Bottom surface of the smoke hood; 12 - Side; 121 - Second air inlet; 122 - Flip panel assembly; 123 - Push rod motor;

[0042] 2 – Switch module; 21 – Rotating bracket; 211 – Circular hole; 212 – Non-circular hole; 22 – Glass panel; 23 – Switch box;

[0043] 31 – Drive motor; 32 – Connecting seat; 33 – Rotating shaft; 34 – Non-cylindrical section;

[0044] 41 – Hand gesture sensing module; 42 – Touch sensing module;

[0045] 5 - Oil baffle; 6 - Flanged edge;

[0046] 7 - Fan assembly; 8 - Oil cup. Detailed Implementation

[0047] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0048] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0049] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0050] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship commonly used when the product of this utility model is in use. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0051] Furthermore, terms such as "horizontal" and "vertical" do not imply that components must be absolutely horizontal or suspended, but rather that they can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0052] In the description of this utility model, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set," "install," "connect," and "link" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0053] like Figure 1 As shown, the smoke collection device provided by this utility model includes: a smoke collection hood 1 and a switch module 2.

[0054] like Figure 2As shown, in this embodiment, the smoke hood 1 is shaped like a "7", with a top 11 located at the top and a side 12 located at the bottom. The inner cavity of the top 11 and the inner cavity of the side 12 are connected. Under the action of the fan assembly 7, negative pressure can be generated in both the inner cavity of the top 11 and the inner cavity of the side 12.

[0055] like Figure 4 - Figure 6 and Figure 9 As shown, an inwardly recessed groove 111 is provided on the bottom surface of the top 11. The shape and size of the circumferential outer sidewall of the switch module 2 are adapted to the shape and size of the circumferential inner sidewall of the groove 111. That is, the shape and size of the circumferential outer sidewall of the groove 111 and the shape and size of the circumferential inner sidewall of the switch module 2 can be approximately the same. The size of the circumferential outer sidewall of the groove 111 is slightly larger than the size of the circumferential inner sidewall of the switch module 2. A certain amount of space is left between the groove 111 and the switch module 2 so that the switch module 2 can rotate into the groove 111, thereby making the gap between the groove 111 and the switch module 2 smaller after the switch module 2 is hidden. A first air inlet 112 is provided on the inner wall of the groove 111, which penetrates and connects the inner and outer sides of the smoke hood 1. There can be more than one first air inlet 112, and multiple first air inlets 112 are arranged in an array.

[0056] The switch module 2 is rotatably connected to the fume hood 1, allowing the switch module 2 to switch between a first state and a second state. In the first state, the switch module 2 is located inside the groove 111, and it blocks the first air inlet 112. In the second state, the switch module 2 is located outside the groove 111, and the user can trigger the switch module 2. At the same time, the first air inlet 112 opens, and under the action of the fan assembly 7, the first air inlet 112 can absorb the fumes.

[0057] like Figure 4 As shown, in this embodiment, the switch module 2 is roughly rectangular, and the groove 111 can also be rectangular. The opening of the groove 111 faces downward, and the bottom surface of the groove 111 (the side facing the opening of the groove 111) is provided with a first air inlet 112. The back of the switch module 2 in the first state blocks the first air inlet 112.

[0058] When the range hood is working, the switch module 2 is in its second state, with the first air inlet 112 open. The switch module 2, located outside the groove 111, is easily accessible for user control. When the range hood stops working, the switch module 2 can be rotated to retract into the groove 111, effectively hiding it. Without the switch module 2 obstructing the view, the bottom surface 113 of the smoke collection hood can be cleaned more smoothly. Simultaneously, in its first state, the switch module 2 blocks the first air inlet 112, preventing odors inside the smoke collection hood 1 from easily spreading outwards.

[0059] like Figure 10 As shown, in the second state, the front of the switch module 2 faces forward. The front of the switch module 2 can be set with the trigger area of ​​the hand gesture sensing module 41 and the trigger area of ​​the touch sensing module 42, so as to receive the instructions issued by the user and realize different functions according to different operation methods, thereby matching different usage scenarios.

[0060] like Figure 3 As shown, the thickness of the switch module 2 can be set to match the depth of the groove 111. In the first state, the front of the switch module 2 is flush with the bottom surface 113 of the smoke hood. When the switch module 2 is hidden, it is on the same surface as the bottom surface of the top 11, so there is no obstruction when cleaning and wiping.

[0061] In one feasible solution, the state of switch module 2 can be manually switched. In this embodiment, the smoke collection device also includes a drive mechanism. The fixed part of the drive mechanism is connected to the smoke collection hood 1, and the movable part of the drive mechanism is connected to the switch module 2 to drive the switch module 2 to rotate relative to the smoke collection hood 1, that is, the state of switch module 2 is automatically switched by the drive mechanism.

[0062] like Figure 6 - Figure 8 As shown, specifically, the drive mechanism includes a drive motor 31, a connecting seat 32, and a rotating shaft 33. The drive motor 31 and the connecting seat 32 can both be located inside the smoke hood 1, and are fixedly connected to the smoke hood 1. The drive motor 31 is located on the left side of the groove 111, while the connecting seat 32 is located on the right side of the groove 111. Mounting holes are provided on both the left and right walls of the groove 111. These mounting holes are circular. The drive shaft of the drive motor 31 passes through the mounting hole on the left side and connects to the connecting hole on the left side wall of the switch module 2. Correspondingly, one end of the rotating shaft 33 is rotatably connected to the connecting seat 32, and the other end is connected to the connecting hole on the right side wall of the switch module 2. The rotating shaft 33 and the drive shaft are coaxially arranged. The drive motor 31 actively drives the switch module 2 to rotate, and the rotating shaft 33 is driven by it. The function of setting the rotating shaft 33 and the connecting seat 32 is to maintain the stable rotation of the switch module 2.

[0063] Furthermore, limiting structures are provided at the ends of the drive shaft and rotating shaft 33 that are connected to the switch module 2. These limiting structures can be non-cylindrical segments 34. Taking the rotating shaft 33 as an example, the rotating shaft 33 and the non-cylindrical segment 34 are coaxially arranged, such as... Figure 8 As shown, the cross-sectional shape of the rotating shaft 33 is circular, while the cross-sectional shape of the non-cylindrical segment 34 is non-circular, such as square. Correspondingly, a circular hole 211 is provided on the groove 111 for the rotating shaft 33 and the non-cylindrical segment 34 to pass through. The mounting hole on the side wall of the switch module 2 is a non-circular hole 212 corresponding to the non-cylindrical segment 34. The circular hole 211 and the non-circular hole 212 are coaxially arranged, as shown... Figure 7As shown, during docking, the non-cylindrical segment 34 is inserted into the non-circular hole 212 and forms a limit. The two will not rotate relative to each other and have the same rotation state, ensuring the linkage stability between the drive motor 31 and the switch module 2.

[0064] like Figure 10 As shown, the switch module 2 also includes a rotating bracket 21, a glass panel 22, and a switch box 23. The wave-sensing module 41 and the touch-sensing module 42 are both mounted on the switch box 23. The glass panel 22 is connected to the front of the switch box 23 and covers the sensing areas of the wave-sensing module 41 and the touch-sensing module 42. The rotating bracket 21 is connected to the top 11 of the switch box 23. A limiting hole is provided on the rotating bracket 21, and the outer wall of the top 11 of the rotating bracket 21 is set to be semi-circular, remaining tangent to the inner wall of the groove 111 during the rotation process.

[0065] like Figure 4 As shown, when the switch module 2 is opened to the second state, the angle b formed by the back of the switch module 2 and the bottom surface 113 of the smoke hood is less than 95°. Furthermore, this opening angle can be automatically adjusted according to height to achieve the optimal visual angle. The next time it is opened, the opening angle will default to the last angle state; alternatively, the scanning device inside the switch module 2 can scan the user's head contour and calculate the optimal visual angle between the eyes and the display screen based on the data.

[0066] like Figure 4 and Figure 9 As shown, the inside of the fume hood 1 is equipped with an oil baffle 5 located above the first air inlet 112. The oil baffle 5 can prevent dripping oil (such as oil generated by the fan assembly 7) from passing through the first air inlet 112 and falling onto the stove. The oil baffle 5 can completely cover all the first air inlets 112. Similarly, the oil baffle 5 is inclined at an angle parallel to the bottom surface of the groove 111, that is, from front to back, the oil baffle 5 is inclined downwards, and the oil on the oil baffle 5 flows backwards and is discharged from the oil baffle 5, and finally flows into the oil cup 8.

[0067] like Figure 9 As shown, the inner wall of the smoke hood 1 is provided with an inwardly protruding flange 6, which surrounds the first air inlet 112 to prevent oil stains on the inner surface of the smoke hood 1 from flowing out of the first air inlet 112.

[0068] like Figure 4 As shown, from front to back, the bottom surface 113 of the smoke hood slopes downward. The front of the side 12 of the smoke hood 1 is a vertical plate, perpendicular to the stove; the bottom surface of the top 11 of the smoke hood 1 is an inclined plane, and the included angle α between the two planes is greater than 100°. The first air inlet 112 is located at the front, and the oil stains falling on the inner wall of the bottom surface of the smoke hood 1 flow backward out of the bottom surface and finally enter the oil cup 8.

[0069] like Figure 3 As shown, a second air inlet 121 is provided on the side 12. The second air inlet 121 is located at the lower front of the side 12. A flap assembly 122 for opening and closing the second air inlet 121 is also provided on the side 12. A push rod motor 123 for driving the flap assembly 122 to open and close can be provided on the inner side of the side 12. When the push rod motor 123 extends, it drives the flap assembly 122 to open, and the second air inlet 121 on the fume hood 1 opens. This is mainly for the stir-fry mode. The fumes mainly enter from the second air inlet 121. If any fumes escape to the outside, they can be drawn out through the first air inlet 112.

[0070] When only the steamer is used, the amount of oil fumes is small. It can operate in single-on mode via switch module 2, with the flap assembly 122 remaining closed. The center of the steamer is approximately 275mm from the wall, perfectly aligned with the groove 111. As steam rises, the negative pressure created around the groove 111 traps the steam or oil fumes. Simultaneously, the vertical surface of the flap assembly 122 acts as a shield, preventing steam or oil fumes from escaping outwards. This mode is economical and practical, suitable for scenarios with low oil fumes such as simmering, steaming, and boiling.

[0071] like Figure 11 As shown, the hand gesture sensing module 41 and touch sensing module 42 on the switch module 2 can control the opening and closing of the first air inlet 112 and the second air inlet 121, as well as adjust the operating mode of the fan assembly 7. Specifically:

[0072] With a wave of the hand, switch module 2 flips outward to the second state, and fan assembly 7 runs at a low speed. With a hover gesture or by clicking the power on / off button, switch module 2 flips in the opposite direction to reset to the first state, fan assembly 7 is turned off, and the hand gesture is returned to the state.

[0073] A second wave of the hand, following the first wave, opens the flap assembly 122 and activates the fan assembly 7 at high speed. A second wave of the hand activates the fan assembly 7 at high speed. The fan speed changes repeatedly according to the wave of the hand. A hovering gesture or clicking the power on / off button resets the push rod motor 123 and drive motor 31. The flap assembly 122 and switch module 2 simultaneously close the first air inlet 112 and the second air inlet 121, returning to the wave command state.

[0074] Based on a wave of the hand, a button command is executed, and the air volume is manually controlled by the air volume icon on the switch module 2. The flap assembly 122 opens, and the fan assembly 7 switches its operating speed according to the manual command. When the command is turned off, the push rod motor 123 and the drive motor 31 reset. The flap assembly 122 and the switch module 2 simultaneously close the first air inlet 112 and the second air inlet 121, returning to the wave command state.

[0075] The range hood provided by this utility model includes the aforementioned smoke collection device. Because the range hood provided by this utility model incorporates the aforementioned smoke collection device, it also possesses the advantages of a smoke collection device.

[0076] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A smoke collection device, characterized in that, include: A smoke hood (1) is provided with an inwardly recessed groove (111) on the bottom surface of the smoke hood, and a first air inlet (112) is provided on the inner wall of the groove (111) that penetrates and connects the inner and outer sides of the smoke hood (1). A switch module (2) is rotatably connected to the smoke hood (1) so that the switch module (2) can switch between a first state and a second state. In the first state, the switch module (2) is located inside the groove (111) and the switch module (2) blocks the first air inlet (112). In the second state, the switch module (2) is located outside the groove (111) and the first air inlet (112) is open.

2. The smoke collection device according to claim 1, characterized in that, In the second state, the front of the switch module (2) faces forward; In the first state, the front of the switch module (2) is flush with the bottom of the smoke hood.

3. The smoke collection device according to claim 1, characterized in that, The shape and size of the circumferential outer sidewall of the switch module (2) are adapted to the shape and size of the circumferential inner sidewall of the groove (111).

4. The smoke collection device according to claim 1, characterized in that, The smoke collection device also includes a drive mechanism, the fixed part of which is connected to the smoke collection hood (1); The movable part of the drive mechanism is connected to the switch module (2) to drive the switch module (2) to rotate relative to the smoke hood (1).

5. The smoke collection device according to claim 4, characterized in that, The switch module (2) includes a rotating bracket (21), which is connected to the movable part of the drive mechanism; The outer wall of the top (11) of the rotating bracket (21) is semi-circular so that the top (11) and the inner wall of the groove (111) are always tangent during the flipping process of the switch module (2).

6. The smoke collection device according to claim 4, characterized in that, The drive mechanism includes a drive motor (31), a connecting seat (32), and a rotating shaft (33), and the drive shaft of the drive motor (31) is connected to the switch module (2); The connecting seat (32) is connected to the smoke hood (1), one end of the rotating shaft (33) is rotatably connected to the connecting seat (32), and the other end is connected to the switch module (2), and the rotating shaft (33) is coaxially arranged with the drive shaft.

7. The smoke collection device according to claim 6, characterized in that, The drive shaft of the drive motor (31) and the rotating shaft (33) are both provided with non-cylindrical sections (34); both ends of the switch module (2) are provided with non-circular holes (212) corresponding to the non-cylindrical sections (34), and the non-cylindrical sections (34) are inserted into the non-circular holes (212) so that the drive shaft of the drive motor (31), the rotating shaft (33) and the switch module (2) move synchronously in the rotation direction.

8. The smoke collection device according to claim 1, characterized in that, The switch module (2) includes at least one of a hand gesture sensing module (41) and a touch sensing module (42).

9. The smoke collection device according to any one of claims 1-8, characterized in that, The inner wall of the smoke hood (1) is provided with an inwardly protruding flange (6), which surrounds the first air inlet (112); And / or, The smoke collection hood (1) includes a top (11) and a side (12), the side (12) being connected below the top (11) of the smoke collection hood (1), and the groove (111) and the switch module (2) being disposed on the top (11); The side portion (12) is provided with a second air inlet (121) and a flap assembly (122) for opening and closing the second air inlet (121).

10. A range hood, characterized in that, Includes the smoke collection device according to any one of claims 1-9.

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