Range hood with double air inlets

Abstract

The utility model provides a range hood with double air inlets, and relates to the technical field of kitchen appliances, the range hood with double air inlets comprises an exhaust fume collecting hood and an oil shield, the exhaust fume collecting hood is provided with a main suction port and an auxiliary suction port, the main suction port is arranged corresponding to the side of a stove, and the auxiliary suction port is arranged corresponding to the upper part of the stove; the oil shield is connected into the exhaust fume collecting hood, an auxiliary exhaust fume suction cavity is formed between the oil shield and the auxiliary exhaust fume suction port, the oil shield is provided with at least one ventilation opening communicated with the auxiliary exhaust fume suction cavity, and the total ventilation area of the ventilation opening is smaller than the air inlet area of the auxiliary exhaust fume suction port. According to the double-air-inlet range hood provided by the utility model, the air resistance of the auxiliary suction port can be increased, so that larger air pressure is obtained at the main suction port, and the double-air-inlet range hood has a better oil suction effect.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a range hood with double air inlets. Background Art

[0002] Range hoods can use negative pressure to draw cooking fumes into the fan, which is then exhausted to the outside through the fan and air duct or purified uniformly. To increase the suction area, some existing range hoods are equipped with air inlets on the top and sides, respectively, so that the fumes can be sucked in nearby. However, the air pressure at the top and side air inlets of existing range hoods is basically the same, which can easily lead to insufficient air pressure at the side air inlets. Since the top air inlet is usually limited by the size of the range hood casing and is usually smaller than the side air inlet, and the fumes first pass through the side air inlet and then escape to the top air inlet, the insufficient air pressure at the side air inlet will result in the range hood's poor oil suction effect. Utility Model Content

[0003] The purpose of the utility model is to provide a range hood with double air inlets, which can increase the wind resistance of the auxiliary suction port, so that the main suction port can obtain a larger wind pressure and have a better oil suction effect.

[0004] To achieve the above objectives, the present invention provides the following technical solutions:

[0005] The utility model provides a range hood with double air inlets, comprising a smoke collecting hood and an oil-proof hood, the smoke collecting hood having a main suction port corresponding to a side of a stove and an auxiliary suction port corresponding to an upper portion of the stove, the oil-proof hood being connected to the smoke collecting hood and forming an auxiliary smoking cavity between the auxiliary suction port, the oil-proof hood being provided with at least one ventilation port connected to the auxiliary smoking cavity, the total ventilation area of ​​the ventilation ports being smaller than the air inlet area of ​​the auxiliary suction port.

[0006] Furthermore, the ventilation openings are configured in plurality, and the plurality of ventilation openings are all opened on the side wall of the oil-proof cover.

[0007] Furthermore, the smoke hood includes a side panel and an upper bottom plate connected to the side panel, the side panel is arranged corresponding to the side of the stove and has the main suction port, the upper bottom plate is arranged corresponding to the top of the stove and has the auxiliary suction port, the height of the upper bottom plate gradually decreases as it approaches the side panel, the oil-proof hood is connected to the upper bottom plate, and the ventilation port is opened on the side of the oil-proof hood close to the side panel.

[0008] Furthermore, the oil-proof cover includes a bottom wall, a side wall and a top wall, the side wall is connected between the bottom wall and the top wall, the ventilation opening is provided on the side of the side wall close to the side plate, the bottom wall is connected to the upper bottom plate, and the bottom wall is provided with a notch from the edge to the ventilation opening that is connected to the ventilation opening, so that the condensed oil in the auxiliary smoking chamber can flow out of the oil-proof cover.

[0009] Furthermore, it also includes a rotating screen rotatably connected to the upper base plate, the rotating screen is located on the side of the oil-proof cover away from the side plate, and the rotating screen is at least partially hidden in the smoke collecting cover.

[0010] Furthermore, a scraper is connected to a side of the oil-proof cover close to the rotating screen, the scraper abuts against the surface of the rotating screen, and the extension direction of the scraper blade is parallel to the rotation axis of the rotating screen.

[0011] Furthermore, the oil-proof cover has a bent edge on one side close to the rotating screen toward the direction away from the upper base plate, one end of the scraper is clamped on the bent edge and connected to the bent edge through a connecting piece, and the other end of the scraper abuts against the surface of the rotating screen.

[0012] Furthermore, it also includes a driving mechanism installed on the upper base plate, and the driving mechanism is connected to the rotating screen to drive the rotating screen to rotate relative to the upper base plate.

[0013] Furthermore, the side panels extend vertically, and an angle between the upper base plate and the side panels is greater than 100°.

[0014] Furthermore, the total ventilation area of ​​the ventilation opening is 15%-30% of the air inlet area of ​​the auxiliary suction opening.

[0015] The double air inlet range hood provided by the utility model can produce the following beneficial effects:

[0016] In the above-mentioned double-inlet range hood, since the total ventilation area of ​​the ventilation ports on the oil shield is smaller than the air inlet area of ​​the auxiliary suction port, the wind resistance of the auxiliary suction port can be increased, thereby obtaining a greater wind pressure at the main suction port. During the cooking process, most of the rising oil smoke is sucked into the interior of the machine body from the main suction port, reducing the upward escape of oil smoke. If the oil smoke is too large, a small part of the oil smoke continues to rise and is sucked into the machine body through the auxiliary suction port, effectively reducing the escape of oil smoke and having a better oil absorption effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the utility model or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 A schematic diagram of the three-dimensional structure of a range hood with double air inlets provided in an embodiment of the present utility model;

[0019] Figure 2 A schematic diagram of a partial three-dimensional structure of a range hood with two air inlets provided in an embodiment of the present utility model;

[0020] Figure 3 A schematic diagram of the internal structure of a range hood with dual air inlets provided by an embodiment of the present utility model;

[0021] Figure 4 for Figure 3 A local enlarged schematic diagram of point A;

[0022] Figure 5 An exploded view of a rotating screen provided by an embodiment of the present utility model;

[0023] Figure 6 An exploded view of a rotating screen, a first bracket, a second bracket and a driving mechanism provided in an embodiment of the present utility model when they are in cooperation;

[0024] Figure 7 This is a control principle block diagram of a double-air inlet range hood provided by an embodiment of the utility model.

[0025] Icons: 1-Fume hood; 11-Side panel; 111-Main suction port; 12-Upper base plate; 121-Auxiliary suction port; 2-Oil hood; 21-Bottom wall; 211-Notch; 22-Side wall; 221-Ventilation port; 23-Top wall; 24-Bending edge; 3-Rotating screen; 31-Support shaft; 32-Sensing module; 33-Camera module; 34-Information processing module; 4-Scraper; 5-Drive mechanism; 6-Oil cup; 7-Flip plate; 8-First bracket; 9-Second bracket; 10-Oil baffle. DETAILED DESCRIPTION

[0026] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Obviously, the embodiments described are only some of the embodiments of the present invention, not all of them. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0027] 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., indicating positions or relationships, are based on the positions or relationships shown in the accompanying drawings and are intended solely to facilitate the description of this utility model and simplify the description. They do not indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0028] In the description of this utility model, it should be noted that, unless otherwise expressly specified or limited, the terms "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal communication between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on specific circumstances.

[0029] The following is a detailed description of the specific embodiments of the present invention in conjunction with the accompanying drawings. It should be understood that the specific embodiments described herein are only used to illustrate and explain the present invention and are not intended to limit the present invention.

[0030] This embodiment provides a range hood with two air inlets, such as Figures 1 to 4 As shown, it includes a smoke hood 1 and an oil-proof hood 2. The smoke hood 1 has a main suction port 111 corresponding to the side of the stove and an auxiliary suction port 121 corresponding to the top of the stove. The oil-proof hood 2 is connected to the smoke hood 1 and forms an auxiliary smoking cavity between the auxiliary suction port 121. The oil-proof hood 2 is provided with at least one ventilation port 221 connected to the auxiliary smoking cavity. The total ventilation area of ​​the ventilation port 221 is smaller than the air inlet area of ​​the auxiliary suction port 121.

[0031] When the dual-inlet range hood provided in the above embodiment is in use, only the auxiliary inlet 121 can be operated when the amount of smoke is small or in the cooking state; in the case of heavy oil smoke, the main inlet 111 can be opened simultaneously or only the main inlet 111 can be opened. When the auxiliary inlet 121 and the main inlet 111 are opened simultaneously, since the total ventilation area of ​​the vents 221 on the oil shield 2 is smaller than the air inlet area of ​​the auxiliary inlet 121, the wind resistance of the auxiliary inlet 121 can be increased, thereby obtaining a greater wind pressure at the main inlet 111, allowing most of the rising oil smoke to be sucked into the machine body through the main inlet 111, reducing the upward escape of oil smoke. If the oil smoke is too heavy, a small portion of the oil smoke continues to rise and is sucked into the machine body through the auxiliary inlet 121, effectively reducing the escape of oil smoke and achieving a better oil suction effect; when only the main inlet 111 is opened, the main inlet 111 can obtain a greater wind pressure and a stronger suction force, effectively drawing the oil smoke into the fan.

[0032] In an optional embodiment, the total ventilation area of ​​the ventilation opening 221 is 15%-30% of the air inlet area of ​​the auxiliary suction opening 121, and specifically can be 15%, 18%, 20%, 25% or 30%.

[0033] Preferably, the total ventilation area of ​​the ventilation port 221 is 20% of the air inlet area of ​​the auxiliary suction port 121, which can effectively increase the wind resistance of the auxiliary suction port 121 and improve the wind pressure of the main suction port 111, while not causing excessive wind resistance of the auxiliary suction port 121 and affecting the smoking effect of the auxiliary suction port 121.

[0034] The number of the vent 221 may be one or more.

[0035] In an optional embodiment, if Figure 2 As shown, the ventilation openings 221 are configured in multiple numbers, which can increase the distribution area of ​​the ventilation openings 221 and ensure the consistency of wind pressure at various locations of the auxiliary air inlet 121 as much as possible.

[0036] Specifically, the number of the vents 221 may be two, three, four, five or even more.

[0037] In an optional embodiment, if Figure 2 As shown, a plurality of ventilation holes 221 are all opened on the side wall 22 of the oil-proof cover 2 .

[0038] The vent 221 is arranged on the side wall 22 of the smoke hood 1 relative to the top wall 23 of the smoke hood 1, which can avoid the top wall 23 from having a hole. When the oil smoke in the smoke hood 1 falls from a high place, it will not drip from the hole on the top wall 23 to the air inlet net at the auxiliary suction port 121, thereby extending the cleaning cycle of the air inlet net and preventing oil dripping onto the stove.

[0039] When multiple vents 221 are opened on the side wall 22 of the oil shield 2, the multiple vents 221 can be as follows: Figure 2As shown, they are distributed in sequence along the extension direction of the side wall 22 .

[0040] Of course, the multiple ventilation openings 221 may also be distributed in other ways, such as in a matrix distribution, in a ring distribution, etc.

[0041] In an optional embodiment, if Figure 1 As shown, the smoke hood 1 includes a side panel 11 and an upper bottom panel 12 connected to the side panel 11. The side panel 11 is arranged corresponding to the side of the stove and has a main suction port 111. The upper bottom panel 12 is arranged corresponding to the top of the stove and has an auxiliary suction port 121.

[0042] In the above embodiment, the side panels 11 and the upper bottom panel 12 form a "7" shape, which avoids most of the space above the stove and provides a larger operating space for the user.

[0043] In addition, the main suction port 111 corresponding to the side of the stove can preferentially absorb most of the oil smoke, and the auxiliary suction port 121 corresponding to the top of the stove can assist in absorbing the oil smoke that continues to rise. Even if the oil smoke cannot enter from the main suction port 111 for the first time, it will be sucked into the body for the second time from the auxiliary suction port 121, effectively reducing the escape of oil smoke.

[0044] like Figure 1 As shown, the main suction port 111 is equipped with a flap 7 , which has a smoke-collecting effect and can be automatically flipped to open and close the main suction port 111 .

[0045] Specifically, if Figure 2 As shown, an oil cup 6 may be installed at the bottom of the side panel 11 , and the condensed oil in the fume hood 1 may flow along the side panel 11 into the oil cup 6 .

[0046] In an optional embodiment, if Figures 1 to 4 As shown, the height of the upper base plate 12 gradually decreases as it approaches the side plate 11 , the oil-proof cover 2 is connected to the upper base plate 12 , and the vent 221 is opened on a side of the oil-proof cover 2 close to the side plate 11 .

[0047] In the above embodiment, since the height of the upper base plate 12 gradually decreases as it approaches the side plate 11, oil droplets dripping from the top of the smoke hood 1 to the upper base plate 12, or oil droplets on the oil-proof hood 2 and the upper base plate 12 itself can flow toward the side plate 11 under the action of gravity, and flow along the side plate 11 to the oil cup 6, which is convenient for the discharge and centralized storage of condensed oil.

[0048] The vent 221 is opened on the side of the oil shield 2 close to the side plate 11 to facilitate the condensed oil at the vent 221 to flow directly to the side plate 11, and to facilitate the oil at the vent 221 to be quickly discharged into the oil cup 6.

[0049] In an optional embodiment, the side panels 11 extend vertically, and the angle between the upper base plate 12 and the side panels 11 is greater than 100°, which is conducive to the oil stains on the upper base plate 12 being transferred to the side panels 11.

[0050] In an optional embodiment, if Figure 2 As shown, the oil-proof cover 2 includes a bottom wall 21, a side wall 22 and a top wall 23. The side wall 22 is connected between the bottom wall 21 and the top wall 23. A vent 221 is provided on the side of the side wall 22 close to the side plate 11. The bottom wall 21 is connected to the upper base plate 12. The bottom wall 21 has a notch 211 extending from the edge to the vent 221 and communicating with the vent 221.

[0051] The oil stains outside the oil shield 2 and the condensed oil stains at the auxiliary suction port 121 can flow out of the oil shield 2 through the gap 211 and flow along the inner surface of the side plate 11 to the oil cup 6, thereby reducing the oil stains from contaminating the structure of the oil shield 2 away from the side plate 11.

[0052] When there are multiple vents 221 , there can also be multiple gaps 211 correspondingly configured, and the multiple gaps 211 are connected to the multiple vents 221 in a one-to-one correspondence.

[0053] The bottom wall 21 and the upper base plate 12 may be connected in various ways, such as snap connection, screw connection, etc.

[0054] In an optional embodiment, if Figure 2 As shown, the double-air-inlet range hood further includes a rotating screen 3 rotatably connected to the upper base plate 12 , the rotating screen 3 is located on the side of the oil shield 2 away from the side plate 11 , and the rotating screen 3 is at least partially hidden in the fume hood 1 .

[0055] In the above embodiment, the rotating screen 3 is located on the side of the oil shield 2 away from the side plate 11 , and the upper base plate 12 gradually decreases in height as it approaches the side plate 11 , which can reduce the risk of oil contamination of the rotating screen 3 .

[0056] In addition, the rotating screen 3 is located on the side of the oil-proof cover 2 away from the side panel 11, which gets rid of the traditional machine switch setting method that needs to be fixed on the flap or fixed on the front side of the smoke hood head. It will not cause the smoke hood to be thicker, and there is no need to set the switch wiring on the moving mechanism of the flap, or to set a separate wire hole to pass through the smoke hood parts. The space of the range hood is less restricted and it is more economical.

[0057] In an optional embodiment, if Figure 5As shown, the rotating screen 3 includes a support shaft 31, a sensing module 32, a camera module 33 and an information processing module 34. The sensing module 32, the camera module 33 and the information processing module 34 are arranged circumferentially around the support shaft 31. The sensing module 32 is used to sense the sensing instructions issued by the user, and the camera module 33 is used to detect the usage of the stove and the sensing instructions issued by the user. The sensing module 32 and the camera module 33 are both connected to the information processing module 34.

[0058] During specific use, the sensing module 32 can sense the sensing instructions issued by the user and trigger the actual function through the information processing module 34; the camera module 33 can detect the temperature information of the first cooking utensil, the operating status information of the second cooking utensil and the sensing instructions issued by the user. The information processing module 34 can control the range hood to perform corresponding actions based on the above information and instructions, which is more convenient for the user to operate and realize the intelligent management of the range hood. The above sensing instructions can be but are not limited to gestures manually issued by the user.

[0059] Among them, the amount of oil smoke generated by the first cooking utensil during cooking is greater than that of the second cooking utensil. The first cooking utensil can be a utensil such as a wok that generates a large amount of oil smoke during the cooking process, and the second cooking utensil can be a steam-bake combination machine, a casserole pot, etc. that generates less oil smoke or even no oil smoke during the cooking process.

[0060] Among them, the sensing module 32 can sense the user's gestures through infrared, and trigger the actual function through the information processing module 34 according to different preset gesture rules.

[0061] The camera module 33 may include a built-in camera facing the cooktop. The camera, in conjunction with the thermopile module, detects the temperature of the first cooking utensil. After processing the information, the actual function is triggered. Furthermore, the camera module 33 may have a priority. Each time the range hood is turned off, the camera module 33 in the rotating screen 3 is reset to expose the smoke hood 1, i.e., the rotating screen 3 is reset to the camera module function.

[0062] The information processing module 34 can be connected to at least one of the motor driving the rotating screen 3, the fan in the range hood, and the motor driving the flap 7. The information processing module 34 primarily processes information and commands detected by the sensing module 32 and the camera module 33 to control the range hood to perform corresponding actions. For example, if the camera module 33 detects a steady increase in the temperature inside the first cooking vessel, the information processing module 34 controls the range hood to operate at a medium setting. If the camera module 33 detects a sharp increase in the temperature inside the first cooking vessel, the information processing module 34 controls the range hood to operate at a high setting. If the camera module 33 detects a continuous decrease in the temperature inside the first cooking vessel, the information processing module 34 controls the range hood to operate at a low setting. If the camera module 33 detects a temperature below a preset value, the information processing module 34 controls the range hood to automatically shut down. For another example, the information processing module 34 controls the rotating screen 3 to rotate based on a sensing command detected by the camera module 33, so that the sensing module 32 reveals the smoke hood 1. The sensing command can be a gesture command, a touch command, or the like.

[0063] Specifically, the information processing module 34 may include a plastic fan-shaped bracket connected to the support shaft 31, on which a PCBA (Printed Circuit Board Assembly) is arranged. The PCBA processes information from the sensing module 32 and the camera module 33, and communicates information with the control board. The outer surface of the bracket is bonded to curved glass to form a complete module.

[0064] There are many ways to arrange the sensing module 32, the camera module 33 and the information processing module 34, wherein any two modules can be arranged along the axial direction of the support shaft 31; or all three modules can be arranged along the axial direction of the support shaft 31; or any two modules can be arranged along the circumferential direction of the support shaft 31, and the other module and at least one of the above two modules can be arranged along the axial direction of the support shaft 31; or the three modules can be arranged in sequence along the circumference of the support shaft 31.

[0065] In a preferred embodiment, the three modules are sequentially arranged along the circumference of the support shaft 31 .

[0066] There are many ways to connect the sensing module 32 , the camera module 33 and the information processing module 34 to the support shaft 31 , such as screw connection, bonding, clamping and the like.

[0067] In an optional embodiment, the sensing module 32 and / or the camera module 33 and / or the information processing module 34 are snap-connected to the support shaft 31, that is, at least one of the sensing module 32, the camera module 33 and the information processing module 34 is snap-connected to the support shaft 31 to facilitate the installation of the above modules.

[0068] In an optional embodiment, to facilitate the installation of the sensing module 32 , the camera module 33 and the information processing module 34 , the sensing module 32 , the camera module 33 and the information processing module 34 are all snap-fitted to the support shaft 31 .

[0069] For example, Figure 5 As shown, the outer circumferential surface of the support shaft 31 is concavely provided with a plurality of card slots, and the plurality of card slots are distributed along the circumference of the support shaft 31. The extension direction of the card slots is parallel to the axial direction of the support shaft 31. The inner surfaces of the sensing module 32, the camera module 33 and the information processing module 34 are all convexly provided with card strips, and each card strip is connected to a card slot, thereby realizing that the sensing module 32, the camera module 33 and the information processing module 34 are installed on the support shaft 31.

[0070] Of course, the outer circumference of the support shaft 31 may also be provided with a plurality of protruding clips, and the inner surfaces of the sensing module 32, the camera module 33, and the information processing module 34 may all be provided with recessed slots for engaging with the clips. The clipping structure is not limited to a strip-shaped structure; any structure that can achieve clipping may be used.

[0071] In an optional embodiment, if Figure 5 As shown, the sensing module 32 , the camera module 33 and the information processing module 34 are all fan-shaped, so that the three can be arranged more orderly along the circumference of the support shaft 31 .

[0072] Specifically, the central angles corresponding to the sensing module 32 , the camera module 33 and the information processing module 34 may all be 120°, and the sensing module 32 , the camera module 33 and the information processing module 34 are continuously arranged around the circumference of the support shaft 31 .

[0073] Of course, when the rotating screen 3 also includes other modules, the central angles corresponding to the sensing module 32, the camera module 33 and the information processing module 34 can also be appropriately adjusted, for example, configured to 90°, 60°, 45°, etc. The central angles corresponding to the sensing module 32, the camera module 33 and the information processing module 34 can be the same or different.

[0074] In an optional embodiment, when the central angles corresponding to the sensing module 32, the camera module 33 and the information processing module 34 are all 120°, 1 / 3 of the rotating screen 3 can be exposed from the smoke hood 1, and 2 / 3 of the rotating screen can be hidden in the smoke hood 1. That is to say, when the corresponding module is in use, the rotating screen 3 can be rotated until the module exposes the smoke hood 1, and the other modules are hidden in the smoke hood 1.

[0075] In an optional embodiment, if Figure 5As shown, the outer surfaces of the sensing module 32, the camera module 33 and the information processing module 34 are in the same cylindrical surface, ensuring that the outer surfaces of the sensing module 32, the camera module 33 and the information processing module 34 are at the same axial distance from the support shaft 31, making the surface of the rotating screen 3 more beautiful and facilitating the removal of oil stains on the outer surface of the rotating screen 3 when the rotating screen 3 rotates.

[0076] In an optional embodiment, in order to facilitate the removal of oil stains on the outer surface of the rotating screen 3, as shown in FIG. Figure 4 As shown, a scraper 4 is connected to the side of the oil shield 2 close to the rotating screen 3 , the scraper 4 abuts against the surface of the rotating screen 3 , and the extension direction of the blade of the scraper 4 is parallel to the rotation axis of the rotating screen 3 .

[0077] As the rotating screen 3 rotates, the scraper 4 slides relative to the rotating screen 3 to scrape off oil stains on the surface of the rotating screen 3. In a preferred embodiment, the rotating screen 3 includes a plurality of modules sequentially arranged around the circumference of the support shaft 31, with adjacent modules in seamless contact with each other, so that the oil stains scraped off by the scraper 4 will not remain in the gaps between adjacent modules.

[0078] In order to prevent the scraper 4 from damaging the rotating screen 3 , the scraper 4 may be made of rubber.

[0079] In an optional embodiment, if Figure 4 As shown, the oil-proof cover 2 has a bent edge 24 on one side close to the rotating screen 3 toward the direction away from the upper base plate 12. The bent edge 24 can be L-shaped, with one end connected to the bottom wall 21 and the other end suspended and connected to the scraper 4. One end of the scraper 4 is clamped on the bent edge 24 and connected to the bent edge 24 through a connecting piece, and the other end of the scraper 4 abuts against the surface of the rotating screen 3.

[0080] In the above embodiment, the scraper 4 is directly connected to the bent edge 24 , which facilitates the arrangement of the scraper 4 and does not require an additional support structure for installing the scraper 4 .

[0081] like Figure 4 As shown, the angle θ between the above-mentioned bending edge 24 and the upper base plate 12 is greater than 90°, so that the suspended end of the bending edge 24 used to connect with the scraper 4 can extend upward as much as possible, providing a larger operating space for the maintenance and replacement of the scraper 4, which is convenient for personnel operation.

[0082] Specifically, the scraper 4 is U-shaped where it fits in with the bent edge 24. The scraper 4 is inserted into the suspended end of the bent edge 24. A small hole is provided on the U-shaped edge of the scraper 4, which runs through it from top to bottom and corresponds to the hole on the bent edge 24. The U-shaped edge and the bent edge 24 are fixed by a latch, which facilitates the replacement of the scraper 4. The other end of the scraper 4 is a thin sheet that abuts against the outer surface of the rotating screen 3. When the rotating screen 3 rotates, the scraper 4 removes condensed oil from the surface of the rotating screen 3, thereby cleaning the surface of the rotating screen 3.

[0083] In an optional embodiment, the range hood with dual air inlets further includes a driving mechanism 5 mounted on the upper base plate 12 , wherein the driving mechanism 5 is connected to the rotating screen 3 to drive the rotating screen 3 to rotate relative to the upper base plate 12 .

[0084] Compared with the manual rotation of the rotating screen 3 by the user, the provision of the driving mechanism 5 is more convenient for the user to operate, the range hood has a stronger automation capability, and also avoids the cleaning work at the manual operation site.

[0085] It should be noted that any structure that can drive the rotating screen to rotate can be the driving mechanism 5 mentioned in the above embodiment. In an optional implementation manner, the driving mechanism 5 includes a gear motor.

[0086] Specifically, if Figure 6 As shown, a first bracket 8 and a second bracket 9 are respectively provided at both ends of the rotating screen 3. The first bracket 8 and the second bracket 9 are both L-shaped, the lower plane is fixed to the smoke hood 1, the lateral vertical surface is fitted with the end surface of the rotating screen 3, and a circular hole is provided on the vertical surface, which corresponds to the axis of the rotating screen 3.

[0087] The drive mechanism 5 is disposed outside the first bracket 8. The end of the power output shaft of the drive mechanism 5 is designed to be hexagonal. The power output shaft passes through a circular hole in the vertical surface of the first bracket 8 and is connected to the support shaft 31 of the rotating screen 3. The above hexagonal shape prevents the support shaft 31 from rotating relative to the circumference of the power output shaft, thereby ensuring the rotational stability of the support shaft 31.

[0088] The other end of the rotating screen 3 is rotatably matched with the second bracket 9 , and the connecting wires inside the rotating screen 3 are led out through the wire outlet hole on the second bracket 9 .

[0089] When the power output shaft end of the driving mechanism 5 is designed to be hexagonal, as shown in FIG. Figure 5 As shown, a hexagonal mounting hole for the power output shaft end to extend into is provided at the axis center of the support shaft 31 .

[0090] Specifically, the driving mechanism 5 has forward and reverse rotation functions, thereby driving the rotating screen 3 to rotate forward and reverse relative to the smoke collecting hood 1 .

[0091] In an optional embodiment, if Figure 4 As shown, an oil baffle 10 is provided above the rotating screen 3. The oil baffle 10 is parallel to the upper base plate 12 of the smoke hood 1 and is also gradually lowered in height as it approaches the side plate 11, thereby blocking the oil stains dripping from the inside of the chassis. The oil stains on the dripping surface are extended to the top of the oil hood 2 through the inclined surface of the oil baffle 10.

[0092] When using, such as Figure 7As shown, after the whole machine is powered on, the rotating screen 3 is in the camera module 33, and the temperature of the first cooking utensil is detected by the thermopile module to determine whether there is a temperature fluctuation of the first cooking utensil, if so, the flap 7 is opened, and the main motor connected to the fan is operated to realize the functions of starting, adjusting the gear, and shutting down according to the different temperatures.

[0093] If the camera instruction detects that the second cooking appliance is operating while the first cooking appliance remains unchanged, the main motor begins operating at a low gear, flap 7 closes, and steam is drawn in and out solely through auxiliary suction port 121. If the first cooking appliance is detected to be warm and the second cooking appliance is operating simultaneously, the first cooking appliance is prioritized, flap 7 opens, the main motor operates, and main suction port 111 operates. At this point, the information processing module 34 can control the opening or closing of auxiliary suction port 121 as needed. If no temperature change is detected in the first cooking appliance and the second cooking appliance is in standby mode, real-time monitoring is performed. The first cooking appliance can be a stove or other appliance, while the second cooking appliance can be a combination steamer, oven, or other appliance.

[0094] When the camera module 33 detects a user-generated sensor command, the drive mechanism 5 activates, and the rotating screen 3 exposes the portion of the smoke hood 1 that forms the sensor module 32. Based on the user's gestures, the range hood is set to low, medium, or high gear, as well as turned on and off. When the range hood is manually turned off, the flap 7 and main motor are deactivated, and the drive mechanism 5 resets, returning to the camera module 33.

[0095] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A range hood with double air inlets, characterized in that: The invention comprises a smoke collecting hood (1) and an oil-proof hood (2), wherein the smoke collecting hood (1) has a main suction port (111) for being arranged on the side of a stove and an auxiliary suction port (121) for being arranged above the stove, and the oil-proof hood (2) is connected to the inside of the smoke collecting hood (1) and forms an auxiliary smoking cavity between the main suction port (121) and the auxiliary smoking cavity, and the oil-proof hood (2) is provided with at least one ventilation port (221) communicating with the auxiliary smoking cavity, and the total ventilation area of ​​the ventilation port (221) is smaller than the air inlet area of ​​the auxiliary suction port (121).

2. The double air inlet range hood according to claim 1, characterized in that: The ventilation openings (221) are configured in plurality, and the plurality of ventilation openings (221) are all opened on the side wall (22) of the oil-proof cover (2).

3. The range hood with double air inlets according to claim 1, characterized in that: The smoke hood (1) comprises a side panel (11) and an upper bottom panel (12) connected to the side panel (11); the side panel (11) is arranged corresponding to the side of the stove and has the main suction port (111); the upper bottom panel (12) is arranged corresponding to the top of the stove and has the auxiliary suction port (121); the height of the upper bottom panel (12) gradually decreases as it approaches the side panel (11); the oil-proof hood (2) is connected to the upper bottom panel (12); and the ventilation port (221) is opened on a side of the oil-proof hood (2) close to the side panel (11).

4. The double air inlet range hood according to claim 3, characterized in that: The oil-proof cover (2) includes a bottom wall (21), a side wall (22) and a top wall (23), the side wall (22) is connected between the bottom wall (21) and the top wall (23), the side wall (22) is provided with the ventilation opening (221) on the side close to the side plate (11), the bottom wall (21) is connected to the upper bottom plate (12), and the bottom wall (21) is provided with a notch (211) connected to the ventilation opening (221) from the edge to the ventilation opening (221), so that the condensed oil in the auxiliary smoking chamber can flow out of the oil-proof cover (2).

5. The range hood with double air inlets according to claim 3, characterized in that: It also includes a rotating screen (3) rotatably connected to the upper base plate (12), the rotating screen (3) being located on a side of the oil-proof cover (2) facing away from the side plate (11), and the rotating screen (3) being at least partially hidden in the smoke collecting cover (1).

6. The range hood with double air inlets according to claim 5, characterized in that: A scraper (4) is connected to the side of the oil-proof cover (2) close to the rotating screen (3), the scraper (4) abuts against the surface of the rotating screen (3), and the extension direction of the blade of the scraper (4) is parallel to the rotation axis of the rotating screen (3).

7. The range hood with double air inlets according to claim 6, characterized in that: The oil-proof cover (2) is bent with a bent edge (24) on a side close to the rotating screen (3) in a direction away from the upper base plate (12); one end of the scraper (4) is clamped on the bent edge (24) and connected to the bent edge (24) through a connecting piece; the other end of the scraper (4) abuts against the surface of the rotating screen (3).

8. The range hood with double air inlets according to claim 5, characterized in that: It also includes a driving mechanism (5) installed on the upper base plate (12), and the driving mechanism (5) is connected to the rotating screen (3) to drive the rotating screen (3) to rotate relative to the upper base plate (12).

9. The range hood with double air inlets according to claim 3, characterized in that: The side panels (11) extend vertically, and the angle between the upper base panel (12) and the side panels (11) is greater than 100°.

10. The range hood with double air inlets according to any one of claims 1 to 9, characterized in that: The total ventilation area of ​​the ventilation opening (221) is 15%-30% of the air inlet area of ​​the auxiliary suction opening (121).

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