Island table smoke machine with adjustable air curtain angle

Abstract

The utility model discloses an island table fume exhaust machine with adjustable air curtain angle. The island table fume exhaust machine comprises: a table top provided with a cooking area; a fume collecting cavity arranged on the table top; a fume exhaust inlet of the fume exhaust machine arranged on the fume collecting cavity, the fume exhaust inlet facing the cooking area of the table top; an air curtain device arranged adjacent to the fume exhaust inlet of the fume exhaust machine; the air curtain device comprising an air curtain shell, a fan, a wind deflector and a rotating mechanism; the fan is arranged inside the air curtain shell, the air curtain shell is provided with an air curtain inlet and an air curtain outlet, the air curtain outlet faces the cooking area of the table top, and the wind deflector is rotatably connected to the edge of the air curtain outlet through the rotating mechanism. The utility model provides an island table fume exhaust machine with adjustable air curtain angle, solves the problem that the existing air curtain control process cannot match the corresponding state of the fume exhaust machine, realizes air curtain adaptation under different cooking conditions, improves the fume exhaust effect of the fume exhaust machine, ensures the comfort of users when working in the kitchen, and improves the user experience.

Description

Technical Field

[0001] This utility model relates to smoke machine air curtain technology, and more particularly to an island-style smoke machine with an adjustable air curtain angle. Background Technology

[0002] Open kitchens are a popular trend in modern residential design; however, their open structure also makes it easy for cooking fumes to spread to adjacent functional areas, posing a continuous challenge to air quality and living comfort.

[0003] To address this issue, island-style range hoods, with their recessed installation and top-mounted negative pressure exhaust structure, have become the mainstream fume control solution for open kitchens. To further improve fume capture efficiency, existing technologies also create a directional airflow barrier above the cooking surface to prevent fume escape and synergistically enhance the adsorption efficiency of the negative pressure zone.

[0004] However, the current control strategy of air curtain systems has significant limitations. In order to ensure the oil fume adsorption effect, the airflow angle and air volume are usually fixed parameters and cannot be dynamically adjusted according to the working status of the range hood. Utility Model Content

[0005] This invention provides an island-style range hood with an adjustable air curtain angle to solve the problem that the existing air curtain control process cannot match the corresponding state of the range hood.

[0006] This utility model embodiment provides an island-style smoke machine with an adjustable air curtain angle, including:

[0007] The countertop includes a cooking area;

[0008] The smoke collection chamber is located on the countertop; the smoke collection chamber is equipped with a range hood inlet, which faces the cooking area of ​​the countertop.

[0009] An air curtain device is installed near the smoke inlet of the smoke hood; the air curtain device includes an air curtain housing, a fan, a guide plate, and a rotating mechanism;

[0010] The fan is installed inside the air curtain housing, which has an air curtain inlet and an air curtain outlet. The air curtain outlet faces the cooking area on the countertop, and the air guide plate is rotatably connected to the edge of the air curtain outlet through a rotating mechanism.

[0011] Optionally, the rotating mechanism includes two rotating components and a push rod motor;

[0012] The rotating assembly includes a fixed arm, a rotating arm, and an arc-shaped rotating plate;

[0013] One end of the fixed arm is fixed to the edge of the air curtain outlet, and the other end is rotatably connected to one end of the rotating arm to form the first rotation node;

[0014] The other end of the rotating arm is fixedly connected to one end of the arc-shaped rotating plate;

[0015] The extension direction of the edge of the air curtain outlet fixed by the fixed arm is the first direction, and the other end of the arc-shaped rotating plate in the two rotating components is fixedly connected to different positions of the air guide plate in the first direction.

[0016] The telescopic rod of the push rod motor is rotatably connected to the rotating arm in a rotating assembly to form a second rotating node, and the second rotating node can move along the extension direction of the rotating arm; during the extension and retraction of the telescopic rod, the push rod motor drives the rotating arm to rotate around the first rotating node through the second rotating node, and drives the arc-shaped rotating plate and the air guide plate to rotate.

[0017] Optionally, a limiting hole is provided on the rotating arm, and the limiting hole has a preset length in the extension direction of the rotating arm; the telescopic rod of the push rod motor is rotatably connected to the rotating arm through a pin, and the pin passes through the limiting hole of the rotating arm.

[0018] Optionally, the air curtain device includes a first air curtain device, which is positioned above the smoke inlet of the smoke hood;

[0019] In the first air curtain device, the air guide plate is rotatably connected to the edge of the air curtain outlet away from the smoke inlet of the smoke machine.

[0020] Optionally, in the first air curtain device, the air curtain inlet is located on the side surface of the air curtain housing away from the smoke collection chamber, and the air curtain inlet includes a plurality of strip-shaped sub-inlets extending along a second direction and arranged sequentially along a third direction; wherein, the second direction is the extension direction of the long side of the air curtain outlet, and the third direction is the direction perpendicular to the air curtain outlet.

[0021] Optionally, the air curtain device also includes two second air curtain devices, which are respectively located on opposite sides of the smoke inlet of the smoke hood in the horizontal direction;

[0022] In the second air curtain device, the air guide plate is rotatably connected to the edge of the air curtain outlet away from the smoke inlet of the smoke machine.

[0023] Optionally, in the second air curtain device, the air curtain inlet is located on the side surface of the air curtain housing away from the smoke collection chamber, and the air curtain inlet includes multiple evenly arranged perforated sub-inlets.

[0024] Optionally, it also includes an infrared ranging module and a controller;

[0025] The infrared ranging module is installed on the smoke collection chamber or air curtain device to detect the horizontal distance between the far end of the cookware on the cooking area of ​​the countertop and the smoke collection chamber. The far end is the point on the cookware that is farthest from the smoke collection chamber.

[0026] The controller is electrically connected to the infrared ranging module and the rotating mechanism respectively. It is used to control the rotating mechanism according to the horizontal distance between the point in the cookware that is far away from the smoke collection chamber and the smoke collection chamber, so as to drive the air guide plate to rotate until the far end point is located on or below the extension plane of the air guide plate.

[0027] Optional features also include the range hood housing and the induction cooktop;

[0028] The countertop is set on the range hood housing, and the induction cooker is set on the cooking area of ​​the countertop;

[0029] The inside of the range hood casing is equipped with an air duct, one end of which is connected to the smoke collection chamber;

[0030] The range hood vent is located on the side of the countertop opposite the cooking area, where the smoke collection chamber is located, and the other end of the duct is connected to the range hood vent.

[0031] Optionally, it also includes a lifting mechanism, and an integrated smoke collection chamber receiving groove is provided on the table and the smoke hood box, and the smoke collection chamber is set in the smoke collection chamber receiving groove through the lifting mechanism;

[0032] The lifting mechanism is used to drive the smoke collection chamber to switch between a first state and a second state; wherein, the top surface of the smoke collection chamber is provided with a cover plate, which is parallel to the table surface; in the first state, the smoke collection chamber is housed in the smoke collection chamber receiving groove, and the cover plate covers the air outlet of the smoke hood; in the second state, the smoke collection chamber rises to be exposed above the table surface.

[0033] This utility model provides an island-style range hood with an adjustable air curtain angle. The air curtain device forms an air barrier above the cooking area, while the smoke collection chamber absorbs cooking fumes; the two work together to prevent fumes from escaping. The air curtain angle is adjusted via a rotating air guide plate mechanism according to different cooking utensils and the intensity of fumes generated, meeting the diverse cooking conditions such as stir-frying and stewing. This solves the problem that existing air curtain control processes cannot match the corresponding states of the range hood, achieving air curtain adaptation for different cooking conditions, improving the range hood's smoke extraction effect, ensuring user comfort while working in the kitchen, and enhancing the user experience. Attached Figure Description

[0034] Figure 1 A schematic diagram of the structure of an island-style smoke machine with an adjustable air curtain angle, provided for an embodiment of this utility model;

[0035] Figure 2 A schematic diagram of airflow in an island-style smoke machine provided as an embodiment of this utility model;

[0036] Figure 3 A schematic diagram of airflow inside an island-style smoke machine provided for an embodiment of this utility model;

[0037] Figure 4A schematic diagram of the structure of an air curtain device provided in an embodiment of this utility model;

[0038] Figure 5 This is a schematic diagram of a rotating structure provided in an embodiment of the present utility model;

[0039] In the picture:

[0040] 1. Countertop; 11. Range hood exhaust vent; 2. Smoke collection chamber; 21. Range hood smoke inlet; 22. Cover plate; 23. Smoke collection chamber receiving groove; 3. Air curtain device; 301. First air curtain device; 302. Second air curtain device; 31. Air curtain housing; 311. Air curtain inlet; 3111. Strip-shaped air inlet; 3112. Perforated air inlet; 312. Air curtain exhaust vent; 32. Fan; 33. Air guide plate; 34. Rotating mechanism; 341. Rotating assembly; 3411. Fixed arm; 3412. Rotating arm; 3413. Arc-shaped rotating plate; 342. Push rod motor; 3421. Telescopic rod; 3422. Pin; 4. Infrared ranging module; 6. Range hood housing; 61. Air duct; 62. Range hood fan; 7. Induction cooker; 8. Lifting mechanism. Detailed Implementation

[0041] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present invention and not intended to limit it. Furthermore, it should be noted that, for ease of description, the accompanying drawings show only the parts relevant to the present invention, not the entire structure.

[0042] This utility model embodiment provides an island-style smoke machine with an adjustable air curtain angle. Figure 1 This is a structural schematic diagram of an island-style smoke machine with an adjustable air curtain angle, provided as an embodiment of the present invention. Figure 2 This invention provides a schematic diagram of the airflow in an island-style smoke machine, representing an embodiment of the present invention. Figure 3 This is a schematic diagram of airflow inside an island-style smoke hood provided as an embodiment of the present invention. In the embodiment provided by the present invention, the first direction X1 and the second direction X2 are aligned, and the third direction Y is perpendicular to the second direction X2.

[0043] like Figures 1-3 As shown, the island-style smoke machine includes:

[0044] Countertop 1 has a cooking area for placing cooking utensils.

[0045] The smoke collection chamber 2 is located on the countertop 1 and can be an embedded structure. During operation, the smoke collection chamber 2 rises, exposing the range hood inlet 21, which faces the cooking area of ​​the countertop 1. The range hood inlet 21 is used to absorb cooking fumes through negative pressure, thereby improving the kitchen's fume conditions.

[0046] An air curtain device 3 is installed adjacent to the smoke inlet 21 of the range hood. The air curtain device 3 includes an air curtain housing 31, a fan 32, an air guide plate 33, and a rotating mechanism 34. The fan 32 is installed inside the air curtain housing 31. The air curtain housing 31 is provided with an air curtain inlet 311 and an air curtain outlet 312. The air curtain outlet 312 faces the cooking area of ​​the countertop 1. The rotation angle of the air guide plate 33 of the air curtain outlet 312 is maintained between 0-90°.

[0047] When the fan 32 is started, the air curtain outlet 312 sprays airflow towards the cooking area above the countertop 1 to form an air curtain, covering the cooking area to prevent the oil fumes generated in the cooking area from escaping into the kitchen. The air guide plate 33 is rotatably connected to the edge of the air curtain outlet 312 through the rotating mechanism 34. The air guide plate 33 is used to adjust the air outlet angle of the fan 32 to control the air outlet angle of the air curtain, thereby changing the direction and range of the air curtain's effect.

[0048] This utility model provides an island-style range hood with an adjustable air curtain angle. The air curtain device forms an air barrier above the cooking area, while the smoke collection chamber absorbs cooking fumes; the two work together to prevent fumes from escaping. The air curtain angle is adjusted via a rotating air guide plate mechanism according to different cooking utensils and the intensity of fumes generated, meeting the diverse cooking conditions such as stir-frying and stewing. This solves the problem that existing air curtain control processes cannot match the corresponding states of the range hood, achieving air curtain adaptation for different cooking conditions, improving the range hood's smoke extraction effect, ensuring user comfort while working in the kitchen, and enhancing the user experience.

[0049] Continue to refer to Figures 1-3 In an optional embodiment, the range hood further includes a range hood housing 6 and an induction cooker 7;

[0050] The countertop 1 is set on the range hood housing 6, and the induction cooker 7 is set in the cooking area of ​​the countertop 1;

[0051] The inside of the range hood casing 6 is equipped with an air duct 61, one end of which is connected to the smoke collection chamber 2;

[0052] A range hood outlet 11 is provided on the side of the smoke collection chamber 2 away from the cooking area on the countertop 1, and the other end of the air duct 61 is connected to the range hood outlet 11.

[0053] Specifically, when the induction cooker 7 is working, most of the cooking fumes it produces are confined to the cooking area by the air curtain. Subsequently, under the action of the range hood fan 62, the fumes enter the air duct 61. After being purified by adsorption, the airflow in the air duct 61 is discharged from the range hood outlet 11, thereby achieving the collection and purification of kitchen fumes and keeping the kitchen air fresh.

[0054] In an optional embodiment, the smoke collection chamber 2 of the island-style range hood has a concealed design, and in the non-working state (first state), the smoke collection chamber 2 is hidden inside the range hood housing 6. Conversely, in the working state (second state), the smoke collection chamber 2 rises from the range hood housing 6, exposing the range hood smoke inlet 21 and the air curtain outlet 312. According to user needs, the range hood is used to absorb oil fumes. When the oil fumes are large and the range hood cannot completely absorb them, the air curtain device 3 is activated to prevent the oil fumes from escaping.

[0055] Specifically, the island-style smoke hood also includes a lifting mechanism 8. An integrated smoke collection chamber receiving groove 23 is provided on the tabletop 1 and the smoke hood housing 6. The smoke collection chamber 2 can be an embedded structure and is set in the smoke collection chamber receiving groove 23 through the lifting mechanism 8. The lifting mechanism 8 is used to drive the smoke collection chamber 2 to switch between the first state and the second state.

[0056] The top surface of the smoke collection chamber 2 is provided with a cover plate 22. When not in operation, the cover plate 22 is parallel to the table surface 1, the smoke collection chamber 2 is stored in the smoke collection chamber receiving groove 23, and the cover plate 22 covers the air outlet 11 of the smoke machine (first state).

[0057] When the user is cooking in the cooking area, the smoke collection chamber 2 is raised above the countertop 1 by the lifting mechanism 8, and the smoke inlet 21 of the range hood is exposed (second state).

[0058] Figure 4 This is a structural schematic diagram of an air curtain device provided in an embodiment of the present invention. Figure 5 This is a schematic diagram of a rotating structure provided in an embodiment of the present invention, as shown below. Figure 4 and Figure 5 As shown, in an optional embodiment, the rotating mechanism 34 includes two rotating components 341 and a push rod motor 342. The rotating components 341 include a fixed arm 3411, a rotating arm 3412 and an arc-shaped rotating plate 3413.

[0059] One end of the fixed arm 3411 is fixed to the edge of the air curtain outlet 312, and the other end is rotatably connected to one end of the rotating arm 3412 to form the first rotation node P1. The other end of the rotating arm 3412 is fixedly connected to one end of the arc-shaped rotating plate 3413.

[0060] The edge of the air curtain outlet 312 fixed by the fixed arm 3411 extends in the first direction X1, and the other end of the arc-shaped rotating plate 3413 in the two rotating components 341 is fixedly connected to different positions of the air guide plate 33 in the first direction X1.

[0061] The telescopic rod 3421 of the push rod motor 342 is rotatably connected to the rotating arm 3412 in a rotating assembly 341 to form a second rotating node P2, and the second rotating node P2 can move along the extension direction of the rotating arm 3412; during the extension and retraction of the telescopic rod 3421, the push rod motor 342 drives the rotating arm 3412 to rotate around the first rotating node P1 through the second rotating node P2, and drives the arc-shaped rotating plate 3413 and the air guide plate 33 to rotate.

[0062] During operation, when the telescopic rod 3421 of the push rod motor 342 is in the retracted state, the rotating arm 3412, driven by the telescopic rod 3421, is positioned relatively close to the air curtain outlet 312. The connected arc-shaped rotating plate 3413 and air guide plate 33 are also closed, and no airflow exits from the air curtain outlet 312. As the telescopic rod 3421 of the push rod motor 342 extends, it pushes the connected rotating arm 3412. Since the second rotation node P2 can move along the rotating arm 3412, and the rotating arm 3412 is rotatably connected to the fixed arm 3411 via the first rotation node P1, the rotating arm 3412 rotates around the first rotation node P1 under the force of the telescopic rod 3421's extension. Simultaneously, the rotating arm 3412 rotates, causing the arc-shaped rotating plate 3413 and air guide plate 33, which are fixedly connected to it, to rotate.

[0063] During this process, the opening of the air curtain outlet 312 changes with the rotation of the air guide plate 33, and the opening of the outlet 312 directly affects the airflow angle of the air curtain. Based on the Coanda effect, the fluid (i.e., the air curtain airflow) tends to flow along the convex surface instead of its original flow direction. The airflow blown out of the air curtain outlet 312 adheres to the movable air guide plate 33. As the telescopic rod 3421 extends, the angle between the air guide plate 33 and the plane containing the air curtain outlet 312 becomes larger and larger. The degree to which the air curtain airflow changes direction along the air guide plate 33 also increases, ultimately causing the air curtain range to continuously expand, thereby achieving adjustment of the air curtain range.

[0064] In an optional embodiment, a limiting hole (not shown in the figure) is provided on the rotating arm 3412, and the limiting hole has a preset length in the extension direction of the rotating arm 3412; the telescopic rod 3421 of the push rod motor 342 is rotatably connected to the rotating arm 3412 through a pin 3422, and the pin 3422 passes through the limiting hole of the rotating arm 3412.

[0065] Continue to refer to Figure 4 Because the telescopic rod 3421 of the push rod motor 342 moves in a straight line, while the rotating arm 3412 rotates around the first rotation node P1 and forms an arc-shaped trajectory, the two movements have geometric differences and cannot be directly driven. Therefore, this embodiment of the utility model adopts a design that combines a limiting hole and a pin 3422.

[0066] Specifically, when the telescopic rod 3421 extends or retracts, the linear thrust of the telescopic rod 3421 is transmitted to the rotating arm 3412. When subjected to force, the rotating arm 3412 rotates in an arc around the first rotation node P1, thereby controlling the adjustment of the air guide plate 33. Through the mechanical limiting cooperation between the limiting hole and the pin 3422, the pin 3422 can slide along the preset length direction within the limiting hole. This ensures the continuity and reliability of power transmission between the push rod motor 342 and the rotating arm 3412, and avoids connection failure or mechanical interference caused by the difference between the linear motion trajectory of the telescopic rod 3421 and the arc motion trajectory of the rotating arm 3412.

[0067] In an optional embodiment, in view of the characteristic of oil fumes flowing upward during cooking, the air curtain device 3 includes a first air curtain device 301, which is disposed above the smoke inlet 21 of the range hood, forming an air curtain interception layer above the smoke inlet 21 of the range hood, thereby reducing the upward dissipation of oil fumes.

[0068] In the first air curtain device 301, the air guide plate 33 is rotatably connected to the edge of the air curtain outlet 312 away from the smoke inlet 21 of the smoke machine. The air guide plate 33 can rotate up to 90° away from the smoke inlet 21 of the smoke machine, that is, it can make the air curtain blow out parallel to the table surface 1 at the maximum, and can close the air curtain at the minimum.

[0069] Figure 2 This is a schematic diagram of the airflow in the air curtain structure at the air outlet angle, such as... Figure 2 As shown in an optional embodiment, in the first air curtain device 301, the air curtain inlet 311 is located on the side surface of the air curtain housing 31 away from the smoke collection chamber 2, and the air curtain inlet 311 includes a plurality of strip-shaped sub-inlets 3111 extending along the second direction X2 and arranged sequentially along the third direction Y.

[0070] Wherein, the second direction X2 is the extension direction of the long side of the air curtain outlet 312, and the third direction Y is the direction perpendicular to the air curtain outlet 312.

[0071] Specifically, such as Figure 2As shown, outside air enters the air curtain housing 31 from the air curtain inlet 311 above the first air curtain device 301, and is blown out from the air curtain outlet 312 by the fan 32. The fan adopts a strip-shaped sub-inlet 3111, which is arranged at a certain angle to form a guiding angle with the axial air intake direction of the fan 32. This improves the uniformity of airflow velocity, reduces turbulence noise, and effectively prevents large-diameter foreign objects (such as fingers, tableware, etc.) from accidentally entering the housing, thus avoiding jamming of the fan impeller.

[0072] Continue to refer to Figure 2 In an optional embodiment, the air curtain device 3 further includes two second air curtain devices 302, which are respectively arranged on both sides of the smoke inlet 21 of the smoke machine to further intercept the lateral escape of oil fumes. In the second air curtain device 302, the air guide plate 33 is rotatably connected to the edge of the air curtain outlet 312 away from the smoke inlet 21 of the smoke machine.

[0073] First, it should be noted that the terms "air guide plate" and "air curtain outlet" in this article do not distinguish between the first and second air curtain devices; they are used as general concepts and are therefore illustrated using the same reference numerals. For example, the air guide plate 33 in the second air curtain device 302 and the air guide plate 33 in the first air curtain device 301 both belong to the same type of structure, but they cannot be considered the same physical air guide plate structure. Similarly, the air curtain outlet 312 in the first and second air curtain devices 301 and 302 cannot be considered the same physical air curtain outlet structure. The same applies to the air curtain inlet 311 mentioned below, which will not be elaborated upon further.

[0074] Specifically, when the first air curtain device 301 and the second air curtain devices 302 on both sides are activated simultaneously, the airflow of the three air curtains works together to form a semi-enclosed area with the range hood table 1 on three sides, which can block the oil fumes from escaping to the sides and top; thus ensuring that the oil fumes can only enter the range hood's smoke collection chamber 2 through the range hood's smoke inlet 21, thereby achieving effective smoke extraction.

[0075] For example, when the pot is small or the heat is high, the air guide plate 33 rotates inward, and the second air curtain device 302 and the first air curtain device 301 together form an inward-facing conical air curtain range, further enhancing the interception effect of oil fumes.

[0076] Continue to refer to Figure 2 In an optional embodiment, in the second air curtain device 302, the air curtain inlet 311 is located on the side surface of the air curtain housing 31 away from the smoke collection chamber 2, and the air curtain inlet 311 includes a plurality of evenly arranged perforated sub-inlets 3111.

[0077] Specifically, during cooking, cooking fumes primarily tend to rise, with only a small amount spreading to the sides due to environmental disturbances (such as lateral airflow generated by people moving around). Therefore, the wind power control requirements for the second air curtain devices 302 located on both sides of the island range hood are relatively low. Meanwhile, because the air curtain inlets 311 on both sides are closer to the countertop 1 in height, they are more likely to draw in debris from the countertop 1 during use, thus affecting the normal operation of the fan 32. Therefore, the air curtain inlets 311 include multiple evenly arranged perforated sub-inlets 3112. These perforated sub-inlets 3112 can block larger debris from entering, while the evenly distributed perforation structure ensures the uniformity and stability of the airflow.

[0078] Continue to refer to Figure 4 In an optional embodiment, the island-style smoke machine further includes an infrared ranging module 4 and a controller;

[0079] Infrared ranging module 4 is installed on smoke collection chamber 2 or air curtain device 3 to detect the horizontal distance between the far end of the cookware on the cooking area of ​​countertop 1 and smoke collection chamber 2.

[0080] The distal end point can be understood as the point on the cookware that is furthest from the smoke collection chamber 2.

[0081] The controller is electrically connected to the infrared ranging module 4 and the rotating mechanism 34 respectively. It is used to control the rotating mechanism 34 according to the horizontal distance between the point in the cookware that is far away from the smoke collection chamber 2 and the smoke collection chamber 2, so as to drive the air guide plate 33 to rotate until the far end point is located on or below the extension plane of the air guide plate 33.

[0082] Specifically, the infrared ranging module 4 and the controller, together with the air curtain device 3, form a linkage control system to achieve dynamic capture of cooking fumes. When the infrared ranging module 4 detects that the cookware is too large or its position is off, the signal is transmitted to the controller in real time to adjust the height of the smoke collection chamber 2 and the angle of the air curtain, thereby ensuring that the air curtain extension plane always covers or is slightly higher than the far end of the cookware, so that the air curtain completely covers the cooking area.

[0083] For example, in the usage of this utility model embodiment, after the user places the cooking appliance on the cooking area of ​​the countertop 1 and starts the induction cooker 7, the smoke collection chamber 2 hidden in the range hood housing 6 starts to work under the drive of the lifting mechanism 8. The top cover 22 gradually detaches from the countertop 1, and the smoke collection chamber 2 rises from the smoke collection chamber receiving groove 23 until the smoke inlet 21 of the range hood is completely exposed above the cooking area, and enters the working state.

[0084] At the same time, the infrared ranging module 4 installed on the smoke collection chamber 2 or the air curtain device 3 is activated, emitting infrared rays to detect the horizontal distance between the far end of the cooking appliance and the smoke collection chamber 2, and transmitting the detection data to the controller. The controller obtains the power level signal (power parameters corresponding to low, medium, and high heat) from the induction cooker 7, and combines it with the infrared ranging data to generate control commands for the air curtain device 3.

[0085] The controller sends a command to the rotating mechanism 34 in the air curtain device 3. The telescopic rod 3421 of the push rod motor 342 begins to extend, and the pin 3422 slides along the preset length direction in the limiting hole of the rotating arm 3412, pushing the rotating arm 3412 to rotate around the first rotation node P1. This, in turn, drives the arc-shaped rotating plate 3413 and the air guide plate 33 to open outward. In the first air curtain device 301, the air guide plate 33 rotates upward, and in the two second air curtain devices 302 on both sides, the air guide plate 33 rotates away from the cookware. After ensuring that the air curtain covers the cookware, the rotation stops. At this time, outside air enters the air curtain housing 31 from the strip-shaped sub-inlet 3111 on the side of the first air curtain device 301 away from the smoke collection chamber 2 and the perforated sub-inlet 3112 on both sides of the second air curtain devices 302. After being accelerated by the fan 32, it is ejected from the air curtain outlet 312. Based on the Coanda effect, the airflow flows closely along the air guide plate 33, forming a three-sided enclosed semi-enclosed air curtain above the cooking area, maintained by the first air curtain device 301 above and the second air curtain devices 302 on both sides. The fumes within the air curtain are drawn in through the range hood inlet 21 of the smoke collection chamber 2. Under the action of the range hood fan 62, the fumes flow along the air duct 61 towards the range hood outlet 11. When they pass through the filter device (such as oil mesh, activated carbon, etc.) in the air duct 61, they are adsorbed and purified. Finally, the clean airflow is discharged from the range hood outlet 11 on the countertop 1, located on the side of the smoke collection chamber 2 away from the cooking area.

[0086] Meanwhile, if the infrared ranging module 4 detects that the cookware is large, the far end is far away, or the induction cooker 7 is on high heat, the controller will take at least one of the following four measures to enhance the oil fume interception effect based on the detection data.

[0087] (1) The controller sends a command to the lifting mechanism 8 based on the detection data, driving the smoke collection chamber 2 to rise further, causing the air curtain device 3 to move upward, expanding the vertical height of the air curtain coverage area, and ensuring that the oil fume escape path above the far end is effectively covered.

[0088] (2) The controller controls the rotating mechanism 34, which drives the push rod motor 342 to increase the opening angle of the air guide plate 33 in the first air curtain device 301, so that the airflow of the upper air curtain extends to the far end at a gentler angle, covering the outer area of ​​the cookware edge. The air guide plates 33 in the second air curtain devices 302 on both sides rotate outward to a larger angle, so that the coverage area of ​​the air curtains on both sides is larger, forming a larger interception space with the upper air curtain, and enhancing the restraint of long-distance oil fumes.

[0089] (3) The controller increases the output power of the fan 32, increases the wind speed and pressure of the airflow in the air curtain, and ensures that even when the angle of the guide plate increases and the airflow diffuses, it can still maintain sufficient interception strength and avoid breaking through the air curtain barrier due to the accelerated rising speed of the oil fumes.

[0090] (4) The controller increases the output power of the range hood fan 62 and enhances the negative pressure suction of the range hood inlet 21 to ensure that the cooking fumes can be quickly sucked into the smoke collection chamber 2.

[0091] After cooking, the user turns off the induction cooker 7, the air curtain device 3's air guide plate 33 returns to its initial closed state, the smoke collection chamber 2 slowly descends under the action of the lifting mechanism 8, the top cover 22 is flush with the countertop 1, and the system enters standby mode.

[0092] Note that the above description is merely a preferred embodiment of the present invention and the technical principles employed. Those skilled in the art will understand that the present invention is not limited to the specific embodiments described herein, and various obvious changes, readjustments, combinations, and substitutions can be made without departing from the scope of protection of the present invention. Therefore, although the present invention has been described in detail through the above embodiments, the present invention is not limited to the above embodiments. Many other equivalent embodiments may be included without departing from the concept of the present invention, and the scope of the present invention is determined by the scope of the appended claims.

Claims

1. An island-style smoke machine with an adjustable air curtain angle, characterized in that, include: The countertop (1) is equipped with a cooking area; A smoke collection chamber (2) is provided on the countertop (1); a range hood inlet (21) is provided on the smoke collection chamber (2), and the range hood inlet (21) faces the cooking area of ​​the countertop (1); An air curtain device (3) is provided adjacent to the smoke inlet (21) of the smoke machine; the air curtain device (3) includes an air curtain housing (31), a fan (32), a guide plate (33) and a rotating mechanism (34); The fan (32) is installed inside the air curtain housing (31). The air curtain housing (31) is provided with an air curtain inlet (311) and an air curtain outlet (312). The air curtain outlet (312) faces the cooking area of ​​the countertop (1). The air guide plate (33) is rotatably connected to the edge of the air curtain outlet (312) through the rotating mechanism (34).

2. The island-style smoke machine according to claim 1, characterized in that, The rotating mechanism (34) includes two rotating components (341) and a push rod motor (342); The rotating assembly (341) includes a fixed arm (3411), a rotating arm (3412), and an arc-shaped rotating plate (3413); One end of the fixed arm (3411) is fixed to the edge of the air curtain outlet (312), and the other end is rotatably connected to one end of the rotating arm (3412) to form a first rotation node; The other end of the rotating arm (3412) is fixedly connected to one end of the arc-shaped rotating plate (3413); The extension direction of the edge of the air curtain outlet (312) fixed by the fixed arm (3411) is the first direction, and the other end of the arc-shaped rotating plate (3413) in the two rotating assemblies (341) is respectively fixedly connected to the air guide plate (33) at different positions in the first direction. The telescopic rod (3421) of the push rod motor (342) is rotatably connected to the rotating arm (3412) in one of the rotating components (341) to form a second rotating node, and the second rotating node can move along the extension direction of the rotating arm (3412); during the extension and retraction of the telescopic rod (3421), the push rod motor (342) drives the rotating arm (3412) to rotate around the first rotating node through the second rotating node, and drives the arc-shaped rotating plate (3413) and the air guide plate (33) to rotate.

3. The island-style smoke machine according to claim 2, characterized in that, The rotating arm (3412) is provided with a limiting hole, and the limiting hole has a preset length in the extending direction of the rotating arm (3412); The telescopic rod (3421) of the push rod motor (342) is rotatably connected to the rotating arm (3412) via a pin (3422), and the pin (3422) passes through the limiting hole of the rotating arm (3412).

4. The island-style smoke machine according to claim 1, characterized in that, The air curtain device (3) includes a first air curtain device (301), which is disposed above the smoke inlet (21) of the smoke machine; In the first air curtain device (301), the air guide plate (33) is rotatably connected to the side edge of the air curtain outlet (312) away from the smoke inlet (21) of the smoke machine.

5. The island-style smoke machine according to claim 4, characterized in that, In the first air curtain device (301), the air curtain inlet (311) is located on the side surface of the air curtain housing (31) away from the smoke collection chamber (2). The air curtain inlet (311) includes a plurality of strip-shaped sub-inlets (3111) extending along a second direction and arranged sequentially along a third direction. The second direction is the extension direction of the long side of the air curtain outlet (312), and the third direction is the direction perpendicular to the air curtain outlet (312).

6. The island-style smoke machine according to claim 4, characterized in that, The air curtain device (3) further includes two second air curtain devices (302), which are respectively arranged on opposite sides of the smoke inlet (21) of the smoke machine in the horizontal direction; In the second air curtain device (302), the air guide plate (33) is rotatably connected to the side edge of the air curtain outlet (312) away from the smoke inlet (21) of the smoke machine.

7. The island-style smoke machine according to claim 6, characterized in that, In the second air curtain device (302), the air curtain inlet (311) is located on the side surface of the air curtain housing (31) away from the smoke collection chamber (2), and the air curtain inlet (311) includes a plurality of evenly arranged perforated sub-inlets (3112).

8. The island-style smoke machine according to claim 1, characterized in that, It also includes an infrared ranging module (4) and a controller; The infrared ranging module (4) is set on the smoke collection chamber (2) or the air curtain device (3) to detect the horizontal distance between the far end point of the cookware on the cooking area of ​​the countertop (1) and the smoke collection chamber (2). The far end point is the point on the cookware that is farthest from the smoke collection chamber (2). The controller is electrically connected to the infrared ranging module (4) and the rotating mechanism (34) respectively, and is used to control the rotating mechanism (34) according to the horizontal distance between the point in the cookware that is far away from the smoke collection chamber (2) and the smoke collection chamber (2), so as to drive the air guide plate (33) to rotate until the far end point is located on or below the extension plane of the air guide plate (33).

9. The island-style smoke machine according to claim 1, characterized in that, It also includes the range hood housing (6) and the induction cooker (7); The countertop (1) is set on the range hood housing (6), and the induction cooker (7) is set in the cooking area of ​​the countertop (1); The smoke machine casing (6) is provided with an air duct (61), one end of which is connected to the smoke collection chamber (2); A range hood outlet (11) is provided on the side of the smoke collection chamber (2) away from the cooking area on the countertop (1), and the other end of the air duct (61) is connected to the range hood outlet (11).

10. The island-style smoke machine according to claim 9, characterized in that, It also includes a lifting mechanism (8), and an integral smoke collection chamber receiving groove (23) is provided on the platform (1) and the smoke machine box (6). The smoke collection chamber (2) is set in the smoke collection chamber receiving groove (23) through the lifting mechanism (8); The lifting mechanism (8) is used to drive the smoke collection chamber (2) to switch between a first state and a second state; wherein, the top surface of the smoke collection chamber (2) is provided with a cover plate (22), and the cover plate (22) is parallel to the table surface (1); in the first state, the smoke collection chamber (2) is housed in the smoke collection chamber receiving groove (23), and the cover plate (22) covers the air outlet (11) of the smoke machine; in the second state, the smoke collection chamber (2) rises to be exposed above the table surface (1).

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