Range hood

Abstract

The utility model discloses a range hood. The range hood comprises a box body and an air inlet part, a containing cavity is formed in the box body, the box body comprises a smoke suction face, and an opening communicated with the containing cavity is formed in the smoke suction face; the air inlet part is arranged at the opening in a protruding mode and provided with an air inlet communicated with the containing cavity. According to the range hood, the air inlet part is convexly arranged on the smoke suction surface, smoke enters the accommodating cavity from the air inlet, and oil drops formed at the top end of the air inlet part can flow back into the range hood, so that the quantity of the smoke at the top end of the air inlet part does not need to be reduced, and the necessary air quantity of the range hood can be reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of household appliances, in particular to a range hood. BACKGROUND

[0002] With the improvement of living standards, people's demand for various household appliances is also getting higher and higher. Among them, the range hood is an important electrical equipment widely used in the kitchen. The performance of the range hood will directly affect the environment of the kitchen, and thus the health of people. With the development of modern science and technology, the range hood will have a wider application field, so it is particularly important to get a range hood with high performance. The low noise performance of the range hood has always been the goal pursued by the range hood industry.

[0003] For the same product, although a larger air volume can make the smoke suction effect of the range hood better, it will also bring greater noise and make the indoor gas quickly exhaust, leading to insufficient air supply, reverse smell and other phenomena. CONTENT OF THE UTILITY MODEL

[0004] The present application provides a range hood which can improve the smoke suction effect of the range hood through the design of the flow channel of the air inlet part of the range hood, so that it can achieve better smoke suction effect through smaller air volume.

[0005] To solve the above technical problems, one technical scheme adopted by the present application is to provide a range hood, which comprises a box body and an air inlet part, wherein the box body is formed with a containing cavity, the box body comprises a smoke suction surface, and the smoke suction surface is provided with an opening communicating with the containing cavity; the air inlet part is protruded at the opening, and the air inlet part is provided with an air inlet opening communicating with the containing cavity.

[0006] Further, the distance between the side of the air inlet opening of the air inlet part and the smoke suction surface gradually decreases along the direction from the front end to the rear end of the air inlet part.

[0007] Further, the distance between the top end of the air inlet part and the cooktop gradually increases along the direction from the front end to the rear end of the air inlet part.

[0008] Further, the first distance between the bottom end of the air inlet opening and the cooktop and the second distance between the end of the air inlet opening away from the containing cavity and the wall surface satisfy that the difference between the first distance and the second distance is less than 180 mm.

[0009] Further, the distance between the lower edge of the air inlet opening and the cooktop is less than or equal to 550 mm.

[0010] Further, the air inlet part comprises an oil baffle and a first side plate, a second side plate and a mesh plate connected to one side of the oil baffle, wherein one end of the mesh plate is connected to the first side plate, the other end of the mesh plate is connected to the second side plate, and a plurality of air inlet openings communicating with the containing cavity are arranged on the mesh plate.

[0011] Further, the upper end of the mesh plate is connected with the front end of the oil baffle, and the bottom end of the mesh plate is connected with the lower edge of the opening.

[0012] Further, the distance between the connection of the mesh plate and the oil baffle and the edge of the oil baffle is greater than 0, and the distance between the connection of the first side plate and the second side plate and the edge of the oil baffle is greater than 0.

[0013] Further, the oil baffle is movably connected with the box body, so as to open or block the opening, the oil baffle has an open state and a closed state, in the closed state, the oil baffle blocks the opening, and the mesh plate, the first side plate and the second side plate are accommodated in the accommodating cavity; in the open state, the mesh plate, the first side plate and the second side plate protrude at the opening.

[0014] Further, in the open state, the distance between the front end of the oil baffle and the wall surface is less than or equal to 400 mm.

[0015] The beneficial effects of the present application: Different from the prior art, the range hood provided by the present application comprises a box body and an air inlet part, wherein the box body forms an accommodating cavity, the accommodating cavity is part of the air duct of the range hood, the box body comprises a smoke suction surface, the smoke suction surface is provided with an opening communicating with the accommodating cavity; the air inlet part protrudes at the opening, and the air inlet part is provided with an air inlet communicating with the accommodating cavity. The flue gas enters the inside of the range hood through the air inlet of the air inlet part, after the oil is hung on the top of the air inlet part, the oil droplets are in the inside of the air inlet part and can flow back to the inside of the range hood, instead of directly falling, so the amount of flue gas at the top of the air inlet part does not need to be reduced, thereby the necessary air volume of the range hood can be made smaller, the range hood of the present application can use smaller air volume to achieve the same smoke suction effect, thereby the noise of the range hood can be reduced, and the occurrence of phenomena such as insufficient make-up air and reverse smell can be reduced. BRIEF DESCRIPTION OF DRAWINGS

[0016] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the drawings needed in the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0017] Figure 1 is a structural schematic diagram of an embodiment of the range hood provided by the present application;

[0018] Figure 2 is a structural schematic diagram of another state of the range hood provided by the present application.

[0019] Fig. 10 is a schematic view of a range hood; Fig. 11 is a schematic view of a cabinet; Fig. 12 is a schematic view of an air inlet; Fig. 13 is a schematic view of a top plate; Fig. 14 is a schematic view of a smoke suction plate; Fig. 15 is a schematic view of a first baffle plate; Fig. 16 is a schematic view of a second baffle plate; Fig. 17 is a schematic view of a bottom plate; Fig. 18 is a schematic view of an oil baffle plate; Fig. 19 is a schematic view of a mesh plate; Fig. 20 is a schematic view of a first side plate; Fig. 21 is a schematic view of a second side plate; Fig. 22 is a schematic view of an air inlet; and Fig. 23 is a schematic view of a smoke suction surface. DETAILED DESCRIPTION

[0020] In order to make the above objectives, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application will be described in detail below with reference to the accompanying drawings. It can be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application. In addition, it should be noted that, for the purpose of description, only the parts related to the present application are shown in the drawings, rather than all the structures. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of the present application.

[0021] The terms "first", "second", and the like in the present application are used to distinguish different objects, rather than to describe a specific order. In addition, the terms "include" and "have" and any variations thereof are intended to cover non-exclusive inclusion. For example, a process, method, system, product or device including a series of steps or units is not limited to the listed steps or units, but optionally includes steps or units not listed, or optionally includes other steps or units inherent to the process, method, product or device.

[0022] Reference herein to "an embodiment" means that a particular feature, structure, or characteristic described in connection with the embodiment can be included in at least one embodiment of the present application. The appearance of the phrase in various places in the specification does not necessarily all refer to the same embodiment, nor is it necessarily independent or alternative embodiments to other embodiments. Those skilled in the art explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0023] The design purpose of the range hood is to collect and discharge the oil fume generated during cooking from the kitchen. The main working principle is that the oil fume is collected and discharged from the kitchen by being carried by the air discharged from the kitchen. For the range hood, although a larger air volume can make the smoke suction effect better, it will also bring larger noise and make the indoor gas be discharged quickly, resulting in insufficient air supply, reverse smell and other phenomena. That is, in order to avoid the oil baffle hanging oil, the traditional side suction range hood needs to provide a larger air volume at the air inlet to reduce or avoid the contact between the flue gas and the inner surface of the oil baffle. This way will cause the noise perceived by the user to be larger during the operation of the range hood.

[0024] To address the aforementioned problems, this application provides a range hood with an air inlet protruding from the smoke extraction surface. During operation, smoke enters the cavity formed by the air inlet through the air vent. Oil droplets may accumulate on the top of the air inlet; these droplets flow back into the range hood instead of dripping directly. Therefore, the range hood does not need to reduce the amount of smoke reaching the top of the air inlet during design, allowing for a smaller airflow. The range hood provided by this application achieves superior smoke extraction with a smaller airflow, reducing noise and minimizing issues such as insufficient air supply and backflow odors.

[0025] Please see Figure 1 As shown, Figure 1 This is a schematic diagram of an embodiment of a range hood provided in this application. The range hood 10 includes a housing 11 and an air inlet 13 disposed on the housing 11.

[0026] Specifically, the housing 11 has a receiving cavity (not shown in the figure), which is part of the air duct of the range hood 10. A fan (not shown in the figure) is installed in the air duct, and the fan draws the smoke out through the receiving cavity. The configuration of the fan is within the scope of what those skilled in the art can understand, and will not be described in detail here.

[0027] exist Figure 1 In the illustrated embodiment, the housing 11 includes a top plate 111, a first baffle 113, a second baffle 114, a smoke extraction plate 112, and a bottom plate 115. The top plate 111, first baffle 113, second baffle 114, smoke extraction plate 112, and bottom plate 115 form a receiving cavity. The first baffle 113 and second baffle 114 are trapezoidal in shape. In other embodiments, the housing 11 may have other shapes; for example, the housing 11 may not include the bottom plate 115, and the first baffle 113 and second baffle 114 may be triangular in shape.

[0028] Furthermore, the smoke extraction plate 112 includes a smoke extraction surface 101, which faces the stovetop surface. Figure 1 In the illustrated embodiment, the smoking surface 101 is a plane. In other embodiments, the smoking surface 101 may also be a curved surface, or a plane that is bent and connected, etc.

[0029] exist Figure 1In the embodiment shown, when the range hood 10 is in the installed state, the smoke suction surface 101 is a downwardly inclined plane, and the distance between the smoke suction surface 101 and the cooktop gradually increases in the direction away from the wall. That is, the distance between the front end of the smoke suction surface 101 and the cooktop is greater than the distance between the rear end of the smoke suction surface 101 and the cooktop. In this way, the user's operating space is increased, and the operator can better observe and wipe when cleaning the range hood. In other embodiments, the smoke suction surface 101 can also be inverted, that is, the distance between the smoke suction surface 101 and the cooktop gradually decreases in the direction away from the wall. In this way, the negative pressure area generated by the range hood can be increased, thereby improving the smoke suction effect.

[0030] As shown in Figure 1 The smoke suction surface 101 is provided with an opening 102 that is in communication with the accommodation cavity. The opening 102 is provided with an air inlet portion 13. The air inlet portion 13 is protrudingly arranged on the smoke suction surface 101. The air inlet portion 13 is formed with a cavity (not shown in the figure) that is in communication with the accommodation cavity, and the air inlet portion 13 is provided with an air inlet opening 103 that is in communication with the cavity. The flue gas enters the cavity and the accommodation cavity through the air inlet opening 103, and the flue gas entering the cavity through the air inlet opening 103 will hang oil droplets at the top end (inner top wall) of the air inlet portion 13. The oil stains at the top of the air inlet portion 13 will not drip out, and the oil droplets can flow back to the inside of the accommodation cavity. Therefore, there is no need to worry about the oil hanging problem of the oil blocking plate at the upper end of the air inlet portion 13, and the air volume of the range hood 10 can be designed to be smaller, thereby reducing the noise of the range hood 10.

[0031] Further, the outer edge of the air inlet portion 13 abuts against the edge of the opening 102 to block the opening 102 through the air inlet portion 13, so that the flue gas can only enter the inside of the range hood 10 through the air inlet opening 103 on the protrudingly arranged air inlet portion 13. The air inlet portion 13 can be fixedly connected with the box body 11, or movably connected with the box body 11. For specific embodiments of the movable connection between the air inlet portion 13 and the box body 11, please refer to the description below. When the air inlet portion 13 is fixedly connected with the box body 11, the air inlet portion 13 can be integrally formed with the box body 11 to improve the structural stability of the range hood 10.

[0032] Alternatively, as shown in Figure 1As shown, the angle between the side of the air inlet 13 with the air inlet 103 and the smoke extraction surface 101 is an acute angle. The distance between the side of the air inlet 13 with the air inlet 103 and the smoke extraction surface 101 gradually decreases from the front end to the rear end of the air inlet 13. That is, the side of the air inlet 13 with the air inlet 103 is inclined downwards. In this way, more smoke can enter the air inlet 103, and the oil droplets on the top of the air inlet 13 can flow back to the inside of the range hood 10 through the side with the air inlet 103. Specifically, an air intake mesh can be provided on the side of the air inlet 13 with the air inlet 103, so that the oil droplets on the top of the range hood 10 can flow back to the inside of the range hood 10 through the air intake mesh. Here, the front end of the air inlet 13 refers to the end of the air inlet 13 away from the wall when the range hood 10 is installed, and the rear end of the air inlet 13 is the end of the air inlet 13 close to the wall.

[0033] When the range hood 10 is installed, the distance between the top of the air inlet 13 and the cooktop surface increases gradually from the front to the rear of the air inlet 13; that is, the top of the air inlet 13 is inclined downwards. Specifically, the angle between the top of the air inlet 13 and the horizontal plane is greater than or equal to 5 degrees. In this way, oil droplets on the inner top wall of the air inlet 13 can flow along the inclined surface to the air inlet mesh, and then enter the interior of the range hood through the air inlet mesh.

[0034] When the range hood 10 is working, the smoke enters the cavity of the air intake section 13 through the air inlet 103. The smoke rises to the top of the cavity, where oil droplets are formed. Under the influence of gravity, the oil droplets flow to the air intake screen and then return to the interior of the range hood 10 with the air intake screen. The range hood 10 of this application has a good smoke extraction effect. Moreover, after the smoke enters the air intake section 13 through the air inlet 103, it does not drip out. Therefore, it is not necessary to reduce the amount of smoke reaching the top of the air inlet 103. The air volume of the range hood 10 can be designed to be smaller, that is, the necessary air volume of the range hood 10 can be reduced, thereby reducing the noise generated by the range hood 10.

[0035] Optionally, in Figure 1 In the illustrated embodiment, the air inlet 13 includes an oil baffle 134, a mesh plate 133, a first side plate 131, and a second side plate 132. The oil baffle 134 is located at the top of the opening 102 and is connected to the housing 11. The mesh plate 133, the first side plate 131, and the second side plate 132 are connected to one side of the oil baffle 134. The mesh plate 133, the first side plate 131, the second side plate 132, and the oil baffle 134 form a cavity that communicates with the receiving cavity formed by the housing 11. The mesh plate 133 has an air inlet 103 that communicates with the receiving cavity, and the air inlet 103 is elongated.

[0036] exist Figure 1In the shown embodiment, the oil baffle 134 is arranged at the top end of the opening 102, and the distance between the oil baffle 134 and the cooking top gradually increases from the front end to the rear end of the air inlet portion 13, that is, the oil baffle 134 is inclined downward. In the working state of the range hood 10, the angle between the oil baffle 134 and the horizontal plane is not less than 5 degrees. For example, the angle between the oil baffle 134 and the horizontal plane is 5 degrees, 6 degrees or 10 degrees, etc. In this way, the oil baffle 134 can have a certain slope, and the oil drops on the oil baffle 134 can flow to the connection between the oil baffle 134 and the mesh plate 133 under the action of gravity, so that the oil drops flow back to the inside of the range hood 10 through the mesh plate 133.

[0037] One side of the mesh plate 133 is connected with the oil baffle 134, and the other side of the mesh plate 133 abuts against the edge of the opening 102. The mesh plate 133 is also inclined downward, so that the oil drops can flow back to the accommodating cavity.

[0038] Specifically, the flue gas is sucked into the cavity through the air inlet 103 of the mesh plate 133, and is extracted through the accommodating cavity. Part of the flue gas rises and contacts the oil baffle 134, so that oil drops are formed on the oil baffle 134. The oil drops on the oil baffle 134 move to the connection between the oil baffle 134 and the mesh plate 133 under the action of gravity, and move along the mesh plate 133 to the inside of the range hood 10, so that the oil drops do not directly drop to the cooking top. The range hood 10 has good smoke suction effect, and in the design of the range hood 10, the amount of flue gas contacted by the oil baffle 134 does not need to be reduced, and the necessary air volume of the range hood can be small, so that the noise of the range hood 10 can be reduced, and the phenomena of insufficient air supply, reverse smell, etc. can be reduced.

[0039] In other embodiments, the oil baffle 134 can also be arranged upwardly inclined. That is, the distance between the oil baffle 134 and the cooking top gradually decreases from the front end to the rear end of the air inlet portion 13, so that the oil drops generated after the oil baffle 134 contacts the flue gas can also flow back to the inside of the range hood 10.

[0040] In Figure 1In the shown embodiment, the included angle between the mesh plate 133 and the smoke suction surface 101 is an acute angle, one end of the mesh plate 133 is connected with the oil blocking plate 134, and the other end of the mesh plate 133 is connected with the opening 102 on the smoke suction surface 101, so that the oil droplets can flow back to the inside of the range hood 10 along the mesh plate 133 through the opening 102. The first side plate 131 and the second side plate 132 are triangular in shape, so as to support the overall structure of the air inlet portion 13. In other embodiments, the first side plate 131 and the second side plate 132 can also be trapezoidal in shape, etc. The two ends of the first side plate 131 and the second side plate 132 opposite to the opening 102 abut against the bottom end of the opening 102, and the lower end of the mesh plate 133 abuts against the bottom end of the opening 102, so as to block the opening 102, and the oil fume can enter the inside of the range hood through the air inlet 103 on the mesh plate 133.

[0041] The distance between the connection of the mesh plate 133 and the oil blocking plate 134 and the edge of the oil blocking plate 134 is greater than 0, and the distance between the connection of the first side plate 131 and the second side plate 132 and the oil blocking plate 134 and the edge of the oil blocking plate 134 is greater than 0. That is, as shown in the figure, the edge of the oil blocking plate 134 is protrudingly arranged, in this way, the blocking effect of the oil blocking plate 134 on the oil fume can be improved, and more smoke gas can enter the inside of the range hood 10 through the mesh plate 133. In this way, the smoke suction effect of the range hood 10 can be improved. Figure 1

[0042] Further, the air inlet portion 13 can be movably connected with the box body 11, so that the air inlet portion 13 can be pulled out during use and accommodated in the accommodating cavity formed by the box body 11 when not in use.

[0043] Specifically, the oil blocking plate 134 of the air inlet portion 13 is movably connected with the box body 11, so as to open or block the opening 102. The oil blocking plate 134 can be connected with the box body 11 through a rotating shaft, and a driving portion drives the rotating shaft to rotate to drive the opening and closing of the oil blocking plate 134, so that the oil blocking plate 134 has an open state and a closed state.

[0044] The oil blocking plate 134 in the closed state, as shown in the figure, Figure 2 Figure 2 is Figure 1 ​​The structure diagram of another state of the shown range hood, at this time the oil baffle 134 blocks the opening 102, and the mesh plate 133, the first side plate 131 and the second side plate 132 are accommodated in the accommodating cavity. When the range hood 10 is in a non-working state, the oil baffle 134 of the range hood 10 can be in a closed state, so that the appearance of the range hood 10 is more neat, the user can clean the range hood 10 more conveniently, and the smell in the range hood can be effectively returned to the kitchen. The range hood 10 can automatically close the oil baffle 134 based on the user's operation of closing the fan, such as when the user's operation of closing the fan of the range hood 10 is detected, the oil baffle 134 is automatically closed, or the oil baffle 134 is automatically closed after a preset interval. Alternatively, the range hood 10 can be provided with a separate opening and closing switch of the oil baffle 134 to control the opening and closing of the oil baffle 134.

[0045] In the opened state of the oil baffle 134, the air inlet portion 13 is provided at the opening 102, so that the smoke generated by the stove can enter the inside of the range hood 10 through the air inlet 103 of the protruding air inlet portion 13. Specifically, when the user uses the range hood, the fan of the range hood 10 is opened, the oil baffle 134 can be opened together with the fan, the air inlet portion 13 is pulled out of the accommodating cavity, the mesh plate 133, the first side plate 131 and the second side plate 132 are pulled out of the accommodating cavity, and the outer edge of the air inlet portion 13 abuts against the edge of the air inlet 103. The smoke generated by the stove enters the cavity of the air inlet portion 13 and the accommodating cavity through the air inlet 103 of the mesh plate 133. The smoke rising touches the oil baffle 134 and is blocked by the oil baffle 134, forming oil droplets on the inner wall of the oil baffle 134. The oil droplets flow to the mesh plate 133 along the inclined oil baffle 134 under the action of gravity, and flow back to the accommodating cavity through the air inlet mesh of the mesh plate 133.

[0046] In the above embodiment, the air inlet portion 13 is arranged at the opening 102 in a manner that can be opened and closed, and the opening and closing of the air inlet portion 13 can be controlled according to the needs of use, so that the state of the range hood 10 meets the needs of the user. When the range hood 10 is not needed to be used, the oil baffle 134 can be in a closed state, at this time, the oil baffle 134 swings downward to accommodate the mesh plate 133, the first side plate 131 and the second side plate 132 in the accommodating cavity, and the oil baffle 134 is arranged at the opening 102 to block the opening 102, so that the odor in the range hood will not be dispersed to the space of the kitchen, and the appearance of the range hood is more neat. When the range hood is used, the oil baffle 134 swings upward to pull out the mesh plate 133, the first side plate 131 and the second side plate 132 from the accommodating cavity, so that the air inlet portion 13 protrudes at the opening 102. The flue gas enters the range hood through the air inlet 103 of the mesh plate 133, and if the oil baffle 134 contacts the oil fume and hangs oil, it will flow back to the inside of the range hood 10 along the mesh plate 133, instead of dripping, so that when the range hood 10 is designed, the amount of flue gas to the oil baffle 134 does not need to be considered, so that the necessary air volume of the range hood can be reduced.

[0047] Further, the bottom end of the air inlet 103 and the cooktop have a first distance, and the end of the air inlet 103 away from the accommodating cavity and the wall have a second distance, wherein the difference between the first distance and the second distance is less than 180mm, and the wall herein refers to the installation surface of the range hood 10, which is located at the back of the stove, and can be a solid wall or a blocking plate. For example, the difference between the first distance and the second distance is 170mm, 160mm, 150mm, etc. That is, the distance between the air inlet 103 and the cooktop and the distance between the air inlet 103 and the wall are small, so as to reduce the air volume under the same smoke absorption effect.

[0048] Further, the distance L between the lower edge of the air inlet 103 and the cooktop satisfies the following formula: L≤550mm, and preferably, L is less than or equal to 500mm. For example, the distance between the lower edge of the air inlet 103 and the cooktop is 550mm, 545mm, 530mm, 520mm, 500mm, 400mm, etc., which can be set according to actual needs. The lower edge of the air inlet 103 refers to the side of the air inlet 103 close to the cooktop. After the oil baffle 134 is opened, the distance D between the front end of the oil baffle 134 and the wall satisfies the following formula: D≤400mm, and preferably, D≤350mm. For example, the distance D between the front end of the oil baffle 134 and the wall can be 400mm, 350mm, 300mm, 250mm, 200mm or 100mm, etc.

[0049] The distance between the air inlet 103 and the oil baffle 134 can reduce the air volume required to meet the same smoke absorption effect.

[0050] In summary, the structure of the range hood 10 of the present application is simple and low in cost. By setting the air inlet 103 to protrude from the smoke suction surface 101, the oil drops hanging on the inner side wall of the oil baffle can flow back to the inside of the range hood 10 along the mesh plate 133 instead of directly dropping to the outside. In this way, the necessary air volume of the range hood 10 can be reduced, thus reducing the noise generated by the range hood 10, and reducing the occurrence of phenomena such as insufficient air supply, reverse smell, etc.

[0051] The above is only an embodiment of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation using the content of the specification and drawings, or direct or indirect application in other related technical fields, is also included in the patent protection scope of the present application.

Claims

1. A range hood characterized by, The range hood comprises: a box body formed with a receiving cavity, the box body comprising a smoke suction surface provided with an opening communicating with the receiving cavity; an air inlet portion, wherein the air inlet portion is protruded at the opening, and the air inlet portion is provided with an air inlet opening communicating with the receiving cavity.

2. The hood according to claim 1, characterized in that, The distance between the side of the air inlet portion provided with the air inlet opening and the smoke suction surface gradually decreases along the direction from the front end to the rear end of the air inlet portion.

3. The hood according to claim 2, characterized in that, The distance between the top end of the air inlet portion and the cooktop gradually increases along the direction from the front end to the rear end of the air inlet portion.

4. The hood according to any one of claims 1-3, characterized in that, The first distance between the bottom end of the air inlet opening and the cooktop and the second distance between the end of the air inlet opening away from the receiving cavity and the wall surface satisfy the condition that the difference between the first distance and the second distance is less than 180 mm.

5. The hood according to claim 4, characterized in that, The distance between the lower edge of the air inlet opening and the cooktop is less than or equal to 550 mm.

6. The hood according to claim 1, characterized in that, The air inlet portion comprises an oil baffle and a first side plate, a second side plate and a mesh plate connected to one side of the oil baffle, wherein one end of the mesh plate is connected to the first side plate, the other end of the mesh plate is connected to the second side plate, and the mesh plate is provided with a plurality of air inlet openings communicating with the receiving cavity.

7. The hood according to claim 6, characterized in that The upper end of the mesh plate is connected to the front end of the oil baffle, and the bottom end of the mesh plate is connected to the lower edge of the opening.

8. The hood according to claim 6, characterized in that, The distance between the connection of the mesh plate and the oil baffle and the edge of the oil baffle is greater than 0, and the distance between the connection of the first side plate and the second side plate and the oil baffle and the edge of the oil baffle is greater than 0.

9. The hood according to claim 6, characterized in that, The oil baffle is movably connected to the box body to open or block the opening, and the oil baffle has an open state and a closed state. In the closed state, the oil baffle blocks the opening, and the mesh plate, the first side plate and the second side plate are accommodated in the receiving cavity; in the open state, the mesh plate, the first side plate and the second side plate are protruded at the opening.

10. The hood according to claim 9, characterized in that, In the open state, the distance between the front end of the oil baffle and the wall surface is less than or equal to 400 mm.

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