Range hood with smoke gathering structure

Abstract

The embodiment of the invention discloses a range hood with a smoke gathering structure, and relates to the technical field of kitchen wares, the range hood comprises a shell, and an air curtain assembly, an opening and closing panel, a sliding panel, a first driving device and a second driving device which are arranged on the shell; a smoke collecting cavity is formed in the shell, and an upper air inlet and a lower air inlet which are communicated with the smoke collecting cavity are formed in the shell; the air curtain assembly is provided with an air curtain air outlet, the sliding panel is slidably connected with the shell, and the air curtain air outlet and the upper air inlet are located in the two sides of the sliding panel correspondingly. The first driving device is connected with the sliding panel; and the second driving device is connected with the opening and closing panel. According to the range hood provided by the embodiment of the invention, when the gears are switched, the size of the range hood cannot be enlarged by the movement of the opening and closing panel and the sliding panel, so that the cooking operation space of a user cannot be occupied, and the sight of the user cannot be shielded.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, and in particular to a range hood with a smoke collecting structure. Background Art

[0002] In existing range hood technology, range hoods typically have multiple settings. To improve the efficiency of capturing cooking fumes in the higher settings, a common solution is to add a retractable panel (often called a smoke trap) to the hood's air inlet. This panel is typically powered by a power source to control its opening and closing. When the hood is turned on, the panel opens, creating a specific angle designed to expand the negative pressure coverage of the air inlet area. This, in theory, can guide fumes more effectively toward the air inlet, thereby improving overall extraction and exhaust efficiency.

[0003] However, this technical solution has obvious limitations in practical application. First, the smoke collecting plate needs to be kept in the open state during the operation of the range hood. This outward-folding structure will inevitably extend downward and forward, invading the cooking operation area above the stove, taking up valuable space, and causing physical obstacles to operations such as taking and placing pots and turning ingredients. Secondly, the position of the outward-folding panel happens to be in the operator's normal line of sight, forming a continuous visual obstruction to observing the status of the stove and the cooking process, affecting the convenience and safety of operation.

[0004] It can be seen that in the existing technology, when switching from a low gear to a high gear, the method of opening and closing the panel outwards improves the oil fume capture performance, but also brings negative problems such as limited operating space and blocked vision. It is urgently needed to optimize and improve to balance performance and user experience. Summary of the Invention

[0005] The technical problem to be solved by the embodiments of the present invention is that the smoke collecting plate of the existing range hood occupies the operating space and blocks the sight when opened.

[0006] In order to solve the above problems, an embodiment of the present invention provides a range hood with a smoke trapping structure, comprising a housing, an air curtain assembly, an opening and closing panel, a sliding panel, a first driving device, and a second driving device provided on the housing;

[0007] A smoke collecting chamber is provided in the shell, and an upper air inlet and a lower air inlet communicating with the smoke collecting chamber are opened in the shell;

[0008] The air curtain assembly is provided with an air curtain outlet, the sliding panel is slidably connected to the housing, the air curtain outlet and the upper air inlet are respectively located on both sides of the sliding panel; a first driving device is connected to the sliding panel, wherein the first driving device drives the sliding panel to slide toward the air curtain outlet to open the upper air inlet and close the air curtain outlet, or drives the sliding panel to slide toward the upper air inlet to open the air curtain outlet and close the upper air inlet;

[0009] The second driving device is connected to the opening and closing panel, wherein the second driving device drives the opening and closing panel to flip inward to open the lower air inlet, or drives the opening and closing panel to flip outward to close the lower air inlet.

[0010] Its further technical solution is that the shell includes a main body and a smoke collecting chamber top, and the main body and the top of the smoke collecting chamber form a 7 shape; the lower air inlet is arranged on the main body, and the upper air inlet is arranged at the junction of the main body and the top of the smoke collecting chamber; the air curtain outlet is arranged on the side of the top of the smoke collecting chamber away from the main body.

[0011] A further technical solution is that a slide rail is provided on the bottom side of the top of the smoke collecting chamber, and the sliding panel is provided with a slider, and the slider can be slidably embedded in the slide rail.

[0012] A further technical solution is that the first driving device includes a first motor and a first transmission assembly, and the first motor is connected to the sliding panel through the first transmission assembly.

[0013] A further technical solution is that the first transmission assembly includes a first driving rod and a first connecting rod, the first motor is connected to the first driving rod, the first driving rod is connected to the first connecting rod, and the first connecting rod is connected to the sliding panel.

[0014] A further technical solution is that the air curtain assembly includes an air curtain motor and an air curtain cover, an air curtain flow channel is provided in the air curtain cover, and the air curtain outlet is opened in the air curtain cover and communicated with the air curtain flow channel;

[0015] An air curtain air inlet is provided on the bottom side of the top of the smoke collecting chamber, and the air curtain motor is provided on the lower side of the air curtain air inlet. The air curtain motor is used for blowing air into the air curtain flow channel.

[0016] A further technical solution is that a lamp body is provided on the inner side of the sliding panel, and the sliding panel is made of a light-transmitting material.

[0017] A further technical solution is that a rotating base is provided on the shell, and the opening and closing panel is rotatably connected to the rotating base.

[0018] A further technical solution is that the second driving device includes a second motor and a second transmission assembly, and the second motor is connected to the opening and closing panel through the second transmission assembly.

[0019] A further technical solution is that the second transmission assembly includes a second driving rod and a second connecting rod, the second motor is connected to the second driving rod, the second driving rod is connected to the second connecting rod, and the second connecting rod is connected to the opening and closing panel.

[0020] Compared with the prior art, the embodiments of the present invention can achieve the following technical effects:

[0021] and a control panel comprising: a first control panel and a second control panel, wherein the control panel has a first control panel and a second control panel, wherein the control panel has a first control panel and a second control panel, wherein the control panel has a first control panel and a second control panel, wherein the control panel has a first control panel and a second control panel, wherein the control panel has a second control panel and a second control panel, wherein the control panel has a first control panel and a second control panel, wherein the control panel has a second control panel and a second control panel, wherein the control panel has a first control panel and a second control panel, wherein the control panel has a second control panel and a second control panel, wherein the control panel has a second control panel and a second control panel, wherein the control panel has a second control panel and a second control panel, wherein the control panel has a second control panel and a second control panel, wherein the control panel has a second control panel and a second control panel, wherein the control panel has a second control panel and a second control panel, wherein the control panel has a second control panel and a second control panel, wherein the control panel has a second control panel and a second control panel, wherein the control panel has a second control panel and a second control panel, wherein the control panel has a second control panel and a second control panel, wherein the control panel has a second control panel and a second control panel, wherein the control panel has a second control panel and a second control panel, wherein the control panel has a second control panel and a second control panel, wherein the control panel has a second control panel and a second control panel, wherein the control panel has a second control panel and a second control panel, wherein the control panel has a second control panel and a second control panel When the range hood provided in the embodiment of the present invention switches gears, the movement of the opening and closing panel and the sliding panel will not expand the volume of the range hood, and thus will neither occupy the user's cooking operation space nor block the user's sight. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the invention and, together with the description, serve to explain the principles of the invention.

[0023] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the embodiments or the description of the prior art. Obviously, for ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative labor.

[0024] One or more embodiments are exemplarily illustrated by pictures in the corresponding drawings. These exemplifications do not constitute limitations on the embodiments. Elements with the same reference numerals in the drawings are represented as similar elements. Unless otherwise stated, the figures in the drawings do not constitute proportional limitations.

[0025] Figure 1 This is a schematic structural diagram of a range hood with a smoke-collecting structure in a low gear position, as proposed in an embodiment of the present invention;

[0026] Figure 2 A cross-sectional schematic diagram of a range hood with a smoke trapping structure in a low gear position, as proposed in an embodiment of the present invention;

[0027] Figure 3 This is a schematic structural diagram of a range hood with a smoke trapping structure in a high position, as proposed in an embodiment of the present invention;

[0028] Figure 4 This is a cross-sectional schematic diagram of a range hood with a smoke trapping structure in a high position, as proposed by an embodiment of the present invention;

[0029] Figure 5 An exploded view of a range hood with a smoke-collecting structure proposed in an embodiment of the present invention;

[0030] Figure 6 A schematic diagram of the internal structure of a range hood with a smoke-collecting structure proposed in an embodiment of the present invention;

[0031] Figure 7 Another exploded view of a range hood with a smoke-collecting structure according to an embodiment of the present invention;

[0032] Figure 8 A partial schematic diagram of a range hood with a smoke-collecting structure proposed in an embodiment of the present invention when the lower air inlet is closed;

[0033] Figure 9 This is a partial schematic diagram of a range hood with a smoke-collecting structure proposed in an embodiment of the present invention when the lower air inlet is open.

[0034] Reference numerals

[0035] Shell 10, air curtain assembly 20, opening and closing panel 30, sliding panel 40, decorative strip 50, partition 60, smoke collection chamber 70, upper air inlet 80, lower air inlet 90, lamp body 100, air curtain air inlet 110, main body 11, smoke collection chamber top 12, slide rail 41, slider 42, first motor 43, first driving rod 44, first connecting rod 45, motor bracket 46, air curtain motor 21, air curtain cover 22, air curtain air outlet 23, rotating base 31, second motor 32, second driving rod 33, second connecting rod 34. DETAILED DESCRIPTION

[0036] The following will be combined with the accompanying drawings of the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments. Similar component numbers in the drawings represent similar components. Obviously, the embodiments described below 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 creative efforts are within the scope of protection of the present invention.

[0037] It will be understood that when used in this specification and the appended claims, the terms “comprises” and “comprising” indicate the presence of described features, integers, steps, operations, elements and / or components, but do not preclude the presence or addition of one or more other features, integers, steps, operations, elements, components and / or groups thereof.

[0038] It should also be understood that the terms used in this description of the embodiments of the present invention are only for the purpose of describing specific embodiments and are not intended to limit the embodiments of the present invention. As used in the description of the embodiments of the present invention and the appended claims, the singular forms "a", "an", and "the" are intended to include the plural forms unless the context clearly indicates otherwise.

[0039] See also Figures 1-9 The embodiment of the present invention provides a range hood with a smoke-collecting structure. The range hood with a smoke-collecting structure includes a housing 10, an air curtain assembly 20, an opening and closing panel 30, a sliding panel 40, a first driving device, and a second driving device provided on the housing 10. The specific structure is described as follows:

[0040] The housing 10 defines a smoke collection chamber 70. The housing 10 defines an upper air inlet 80 and a lower air inlet 90 that communicate with the smoke collection chamber 70. In this embodiment of the present invention, the range hood includes at least a low position and a high position. In the low position, oil smoke enters the smoke collection chamber 70 through the upper air inlet 80. In the high position, oil smoke enters the smoke collection chamber 70 through the lower air inlet 90.

[0041] The air curtain assembly 20 is provided with an air curtain outlet 23, through which the air curtain assembly 20 can blow air downward to form an air curtain to prevent the escape of oil smoke. In the embodiment of the present invention, the air curtain assembly 20 is opened at a high position.

[0042] The sliding panel 40 is slidably connected to the housing 10, and the air curtain outlet 23 and the upper air inlet 80 are respectively located on both sides of the sliding panel 40. A first driving device is connected to the sliding panel 40, wherein the first driving device drives the sliding panel 40 to slide toward the air curtain outlet 23 to open the upper air inlet 80 and close the air curtain outlet 23, or drives the sliding panel 40 to slide toward the upper air inlet 80 to open the air curtain outlet 23 and close the upper air inlet 80.

[0043] Specifically, in the low gear position, the first driving device drives the sliding panel 40 to slide toward the air curtain outlet 23 to open the upper air inlet 80 and close the air curtain outlet 23; in the high gear position, the first driving device drives the sliding panel 40 to slide toward the upper air inlet 80 to open the air curtain outlet 23 and close the upper air inlet 80.

[0044] The second driving device is connected to the opening and closing panel 30 , wherein the second driving device drives the opening and closing panel 30 to flip inward to open the lower air inlet 90 , or drives the opening and closing panel 30 to flip outward to close the lower air inlet 90 .

[0045] Specifically, in the low gear position, the second driving device drives the opening and closing panel 30 to flip outward to close the lower air inlet 90; in the high gear position, the second driving device drives the opening and closing panel 30 to flip inward to open the lower air inlet 90.

[0046] In an embodiment of the present invention, when the gear is switched, the movement of the opening and closing panel 30 and the sliding panel 40 will not expand the volume of the range hood, so it will not occupy the user's cooking operation space, nor will it block the user's line of sight. The range hood always maintains an ultra-thin and exquisite appearance.

[0047] In the embodiment of the present invention, the operating principle of the range hood is as follows: When the range hood is in low gear, oil smoke enters the smoke collection chamber 70 through the upper air inlet 80. When water vapor flows through the upper air inlet 80, condensation water droplets are generated on the lower edge of the sliding panel 40. The upper air inlet 80 is elongated, which results in a high air velocity when the air flows through it. Most of the condensation water droplets are carried into the range hood by the airflow, preventing them from dripping directly. In addition, due to the elongated shape and small size of the upper air inlet 80, the airflow velocity is high when it passes through it. This not only helps prevent condensation water from dripping, but also reduces the outward radiation of the fan operating noise inside the range hood, effectively reducing noise.

[0048] When the range hood is in high mode, the lower air inlet 90 and the air curtain outlet 23 are open. The air curtain outlet 23 is located at the frontmost side of the range hood. By blowing out the air curtain, it intercepts escaping oil smoke and prevents it from escaping. The lower air inlet 90 is located at the lower front of the range hood, close to the oil smoke source. Once generated, stir-fry oil smoke is quickly absorbed and discharged by the lower air inlet 90, preventing the smoke from spreading. Because the lower edge of the sliding panel 40 approaches the decorative strip 50 after moving backward, a small amount of condensed water droplets on the lower edge of the sliding panel 40 flow along the decorative strip 50 to the lower air inlet 90, preventing the condensed water droplets from dripping directly onto the stovetop.

[0049] When the range hood is turned off, the lower air inlet 90 is closed, the air curtain outlet 23 is closed, and the upper air inlet 80 is opened to delay shutdown to absorb and exhaust residual smoke or to perform other ventilation and exhaust functions.

[0050] The embodiment of the present invention provides a range hood with a smoke-collecting structure, comprising a housing 10 and an air curtain assembly 20, an opening and closing panel 30, a sliding panel 40, a first driving device, and a second driving device arranged on the housing 10; a smoke collecting chamber 70 is provided in the housing 10, and an upper air inlet 80 and a lower air inlet 90 communicating with the smoke collecting chamber 70 are opened in the housing 10; the air curtain assembly 20 is provided with an air curtain outlet 23, the sliding panel 40 is slidably connected to the housing 10, and the air curtain outlet 23 and the upper air inlet 80 are respectively located on both sides of the sliding panel 40; the first driving device and The sliding panel 40 is connected, wherein the first driving device drives the sliding panel 40 to slide toward the air curtain outlet 23 to open the upper air inlet 80 and close the air curtain outlet 23, or drives the sliding panel 40 to slide toward the upper air inlet 80 to open the air curtain outlet 23 and close the upper air inlet 80; the second driving device is connected to the opening and closing panel 30, wherein the second driving device drives the opening and closing panel 30 to flip inward to open the lower air inlet 90, or drives the opening and closing panel 30 to flip outward to close the lower air inlet 90. When the range hood provided in the embodiment of the present invention switches gears, the movement of the opening and closing panel 30 and the sliding panel 40 does not expand the size of the range hood, thereby neither occupying the user's cooking operation space nor blocking the user's line of sight, and the range hood always maintains an ultra-thin and exquisite appearance.

[0051] Furthermore, in some preferred embodiments, the shell 10 includes a main body 11 and a smoke collecting chamber top 12, and the main body 11 and the smoke collecting chamber top 12 form a 7 shape; the lower air inlet 90 is arranged on the main body 11, and the upper air inlet 80 is arranged at the junction of the main body 11 and the smoke collecting chamber top 12; the air curtain outlet 23 is arranged on the side of the smoke collecting chamber top 12 away from the main body 11.

[0052] Specifically, the angle between the top 12 of the smoke collecting chamber and the horizontal plane is, for example, 8-10 degrees, to prevent the oil droplets from falling directly due to a too large angle.

[0053] Positioning the air curtain outlet forward ensures that its airflow barrier effectively covers the front edge of the cooking area. The extended structure 12 at the top of the smoke collection chamber optimizes the projection angle of the air curtain airflow, effectively covering the upper part of the cooking area, forming a physical boundary to isolate oil smoke from escaping, while also preventing interference with the main oil smoke intake airflow.

[0054] Furthermore, in some preferred embodiments, a slide rail 41 is provided on the bottom side of the smoke collecting chamber top 12 , and a slider 42 is provided on the sliding panel 40 . The slider 42 can be slidably embedded in the slide rail 41 .

[0055] Specifically, the embedded fit of the slide rail 41 and the slider 42 allows the sliding panel 40 to achieve highly stable linear motion. The design of the slide rail 41 extending along the underside of the smoke collection chamber top 12 ensures that the panel always has bottom support during horizontal sliding, effectively resisting deflection caused by airflow impact or mechanical vibration. The precise fit of the slider 42 and the slide rail 41 further suppresses shaking during panel displacement.

[0056] Furthermore, the first drive device includes a first motor 43 and a first transmission assembly, wherein the first motor 43 is connected to the sliding panel 40 via the first transmission assembly. The first transmission assembly includes a first drive rod 44 and a first connecting rod 45, wherein the first motor 43 is connected to the first drive rod 44, which is connected to the first connecting rod 45, and the first connecting rod 45 is connected to the sliding panel 40. Furthermore, the first motor 43 is fixed to a motor bracket 46.

[0057] Specifically, the first motor 43 converts rotational motion into precise linear displacement of the sliding panel 40 via a first transmission assembly (first drive rod 44 + first connecting rod 45). The rigid connection characteristics of the rod-based transmission eliminate idle travel errors in the drive chain, allowing the panel to precisely reach the preset open and closed positions. The leverage effect of the mechanical linkage allows the use of a low-torque motor to drive a large panel area, balancing energy efficiency with responsiveness.

[0058] Furthermore, in some preferred embodiments, the air curtain assembly 20 includes an air curtain motor 21 and an air curtain cover 22, an air curtain flow channel is provided in the air curtain cover 22, and the air curtain air outlet 23 is opened in the air curtain cover 22 and is connected to the air curtain flow channel; an air curtain air inlet 110 is provided on the bottom side of the top 12 of the smoke collecting chamber, and the air curtain motor 21 is provided on the lower side of the air curtain air inlet 110, and the air curtain motor 21 is used to blow air into the air curtain flow channel.

[0059] Specifically, the air curtain inlet 110 is used to supply air to the air curtain motor 21. The air curtain motor 21 is located below the air curtain inlet 110 and blows air directly into the air curtain flow channel, forming a short-path, low-loss airflow system. The integrated flow channel design of the air curtain cover 22 guides the high-speed airflow to the air curtain outlet 23, producing a uniform and stable flat air curtain.

[0060] Furthermore, in some preferred embodiments, a lamp body 100 is provided on the inner side of the sliding panel 40 , and the sliding panel 40 is made of a light-transmitting material, such as glass.

[0061] Specifically, a translucent sliding panel 40 integrates an inner lamp body 100, allowing light to penetrate the panel and directly illuminate the cooking area below. This design integrates lighting functionality with the panel structure, eliminating the extra space occupied by independent lamps. Furthermore, in the main fume extraction mode, it automatically provides task lighting, enhancing operational safety.

[0062] Furthermore, in some preferred embodiments, a rotating base 31 is provided on the housing 10, and the opening and closing panel 30 is rotatably connected to the rotating base 31. The second driving device includes a second motor 32 and a second transmission assembly, and the second motor 32 is connected to the opening and closing panel 30 via the second transmission assembly. The second transmission assembly includes a second driving rod 33 and a second connecting rod 34, and the second motor 32 is connected to the second driving rod 33, and the second driving rod 33 is connected to the second connecting rod 34, and the second connecting rod 34 is connected to the opening and closing panel 30.

[0063] Specifically, the rotating base 31 provides a stable pivot for the opening and closing panel 30. A second motor 32 controls its tilting angle via a second transmission assembly (a second drive rod 33 and a second connecting rod 34). The optimized lever arm design of the transmission system enables the motor to drive a large panel with minimal torque, overcoming gravity and achieving smooth tilting. Furthermore, the central axis positioning of the rotating base 31 ensures that the panel does not move radially during opening and closing, preventing interference with surrounding components.

[0064] Furthermore, a partition 60 is provided inside the upper air inlet 80 to separate the rear flow channel from the front space of the range hood to prevent oil smoke from contaminating the internal components. There is an air inlet hole on the partition 60 for the range hood to absorb and exhaust oil smoke when the range hood is in low gear.

[0065] In the above embodiments, the description of each embodiment has its own focus. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments.

[0066] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise" and the like to indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0067] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of the technical features being referred to. Thus, a feature identified as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, "plurality" means two or more, unless otherwise specifically defined.

[0068] In the present invention, unless otherwise expressly specified or limited, terms such as "mounted," "connected," "connect," and "fixed" should be understood broadly. For example, they may refer to connection, detachable connection, or integration; mechanical connection or electrical connection; direct connection or indirect connection through an intermediate medium; and internal communication between two components or interaction between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0069] In the present invention, unless otherwise expressly specified or limited, a first feature being "above" or "below" a second feature may include the first and second features being in direct contact, or may include the first and second features being in contact not directly but through another feature between them. Furthermore, a first feature being "above," "above," and "above" a second feature may include the first feature being directly above or obliquely above the second feature, or may simply mean that the first feature is higher in level than the second feature. A first feature being "below," "below," and "below" a second feature may include the first feature being directly below or obliquely below the second feature, or may simply mean that the first feature is lower in level than the second feature.

[0070] In the description of this specification, the reference terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic expressions of the above terms should not be understood as necessarily referring to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification.

[0071] Obviously, those skilled in the art may make various changes and modifications to the present invention without departing from the spirit and scope of the present invention. Thus, to the extent such changes and modifications fall within the scope of the claims and their equivalents, the present invention is intended to encompass such changes and modifications.

[0072] The above description is a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and such modifications or substitutions are intended to be within the scope of protection of the present invention. Therefore, the scope of protection of the present invention shall be subject to the scope of protection of the claims.

Claims

1. A range hood with a smoke collecting structure, characterized in that: It comprises a shell and an air curtain assembly, an opening and closing panel, a sliding panel, a first driving device and a second driving device arranged on the shell; A smoke collecting chamber is provided in the shell, and an upper air inlet and a lower air inlet communicating with the smoke collecting chamber are opened in the shell; The air curtain assembly is provided with an air curtain outlet, the sliding panel is slidably connected to the housing, the air curtain outlet and the upper air inlet are respectively located on both sides of the sliding panel; a first driving device is connected to the sliding panel, wherein the first driving device drives the sliding panel to slide toward the air curtain outlet to open the upper air inlet and close the air curtain outlet, or drives the sliding panel to slide toward the upper air inlet to open the air curtain outlet and close the upper air inlet; The second driving device is connected to the opening and closing panel, wherein the second driving device drives the opening and closing panel to flip inward to open the lower air inlet, or drives the opening and closing panel to flip outward to close the lower air inlet.

2. The range hood with a smoke trapping structure according to claim 1, characterized in that: The shell includes a main body and a smoke collecting chamber top, and the main body and the smoke collecting chamber top form a 7 shape; the lower air inlet is arranged on the main body, and the upper air inlet is arranged at the junction of the main body and the smoke collecting chamber top; the air curtain outlet is arranged on the side of the smoke collecting chamber top away from the main body.

3. The range hood with a smoke trapping structure according to claim 2, characterized in that: A slide rail is provided on the bottom side of the top of the smoke collecting chamber, and a slider is provided on the sliding panel. The slider can be slidably embedded in the slide rail.

4. The range hood with a smoke trapping structure according to claim 3, characterized in that: The first driving device includes a first motor and a first transmission assembly, and the first motor is connected to the sliding panel through the first transmission assembly.

5. The range hood with a smoke trapping structure according to claim 4, characterized in that: The first transmission assembly includes a first driving rod and a first connecting rod. The first motor is connected to the first driving rod. The first driving rod is connected to the first connecting rod. The first connecting rod is connected to the sliding panel.

6. The range hood with a smoke trapping structure according to claim 2, characterized in that: The air curtain assembly includes an air curtain motor and an air curtain cover, an air curtain flow channel is provided in the air curtain cover, and the air curtain outlet is opened in the air curtain cover and communicated with the air curtain flow channel; An air curtain air inlet is provided on the bottom side of the top of the smoke collecting chamber, and the air curtain motor is provided on the lower side of the air curtain air inlet. The air curtain motor is used for blowing air into the air curtain flow channel.

7. The range hood with a smoke trapping structure according to claim 1, characterized in that: A lamp body is provided on the inner side of the sliding panel, and the sliding panel is made of a light-transmitting material.

8. The range hood with a smoke trapping structure according to claim 1, characterized in that: A rotating base is provided on the shell, and the opening and closing panel is rotatably connected to the rotating base.

9. The range hood with a smoke trapping structure according to claim 8, characterized in that: The second driving device includes a second motor and a second transmission assembly, and the second motor is connected to the opening and closing panel through the second transmission assembly.

10. The range hood with a smoke trapping structure according to claim 9, characterized in that: The second transmission assembly includes a second driving rod and a second connecting rod. The second motor is connected to the second driving rod. The second driving rod is connected to the second connecting rod. The second connecting rod is connected to the opening and closing panel.

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