Range hood

Abstract

The utility model discloses a range hood which comprises a fan frame, a fan cover and a fan cover, the exhaust fume collecting hood is connected with the fan frame and comprises a front plate and a back plate, the front plate comprises a first part and a second part, the upper end part of the second part corresponds to the lower end part of the first part, the first part is parallel to the back plate, the height of the first part is L1, and a fume inlet is formed in the second part; and a smoke barrier. The second part is obliquely arranged relative to the back plate, and the lower end part of the second part is closer to the back plate than the upper end part of the second part; the smoke barrier has a first state and a second state: when the smoke barrier is in the first state, the smoke barrier covers the second part of the front plate, the smoke inlet is covered by the smoke barrier, and the included angle between the smoke barrier and the first vertical plane is alpha; in the second state, the distance between the upper end of the smoke barrier and the lower end of the first part in the vertical direction is H, H is larger than 0.3 * L1, the included angle between the smoke barrier and the first vertical plane is beta, and beta is larger than alpha.

Description

Technical Field

[0001] The utility model relates to an oil fume purification device, in particular to a range hood. Background Art

[0002] Range hoods have become one of the indispensable kitchen appliances in modern families. Range hoods work based on the principle of fluid dynamics, using a fan system installed inside the range hood to absorb and exhaust oil fumes, and using a filter to filter out some grease particles.

[0003] In order to improve the fume extraction effect, a common method is to make the negative pressure area close to the fume source to form a low-suction range hood. For example, a low-suction range hood disclosed in Chinese patent application number 202221698830.2 includes a range hood body, an air duct assembly and a smoke baffle; the range hood body has a receiving cavity, and the front panel of the range hood body is provided with an air inlet connected to the receiving cavity; the air duct assembly is arranged in the receiving cavity, and the air duct inlet of the air duct assembly is arranged toward the air inlet.

[0004] In order to improve the smoke collection effect and reduce the escape of oil smoke, the range hood is usually equipped with a smoke shield. When the machine is turned off, the smoke shield closes the air inlet. When the machine is turned on, the smoke shield rotates to open the air inlet and plays the role of collecting smoke after opening. Then, when the low-suction range hood uses a smoke shield, because its own air inlet is at a low position, the position of the smoke shield after opening is also low, which is easy to hit the pot during the opening process and easily blocks the line of sight. In addition, the thickness of the smoke hood of the low-suction range hood is thin, and the air inlet at the connection between the smoke hood and the fan frame is small, which is easy to generate a lot of noise at the connection.

[0005] Therefore, there is room for further improvement. Utility Model Content

[0006] The first technical problem to be solved by the utility model is to provide a range hood to reduce the risk of a smoke baffle hitting a pot in view of the deficiencies in the above-mentioned prior art.

[0007] The second technical problem to be solved by the utility model is to provide a range hood to increase the air intake area at the connection between the smoke hood and the fan frame and reduce noise in view of the deficiencies in the above-mentioned prior art.

[0008] The technical solution adopted by the utility model to solve the above-mentioned first technical problem is: a range hood, comprising:

[0009] A fan frame, wherein a fan system is arranged inside the fan frame;

[0010] a smoke collecting hood connected to the fan frame, the smoke collecting hood comprising a front plate and a back plate arranged at intervals, the front plate comprising a first part and a second part arranged up and down, the upper end of the second part corresponds to the lower end of the first part, the first part is parallel to the back plate, the height of the first part is L1, and a smoke inlet is opened on the second part; and

[0011] Smoke shield;

[0012] Features:

[0013] The second portion of the front plate is arranged obliquely relative to the back plate, and the lower end of the second portion is closer to the back plate than the upper end of the second portion;

[0014] The smoke baffle has a first state and a second state:

[0015] When in the first state, the smoke shield covers the second part of the front plate, and the smoke inlet is covered by the smoke shield, and the angle between the smoke shield and the first vertical plane is α, and the first vertical plane is a plane parallel to the back plate;

[0016] When in the second state, the upper end of the smoke baffle is higher than the lower end of the first part of the front plate, the vertical distance from the upper end of the smoke baffle to the lower end of the first part is H, and satisfies H>0.3*L1, and the angle between the smoke baffle and the first vertical plane is β, and satisfies β>α.

[0017] Therefore, since the second part of the front plate is inclined relative to the back plate, and since the second part is located below the first part, it is closer to the cooker. This inclined setting makes the space on the front side of the second part relatively larger, so as to leave more placement space for the cooker and reduce the risk of interference. There is also a larger space for operating the cooker, which is convenient for placing larger cookers and expanding the usage scenarios. In addition, the overall position of the smoke shield in the second state is raised relative to that in the first state, and the smoke shield satisfies β>α in the two states. Therefore, the height of the smoke shield in the second state (when the range hood is working) along the vertical direction is less than the height in the first state, which is conducive to the lifting of the position of the lower end of the smoke shield in the second state, that is, the lower end of the smoke shield in the second state is higher than the lower end of the smoke shield in the first state, so as to further reduce the risk of hitting the pot. At the same time, due to the increase in the height of the lower end of the smoke shield in the second state, the obstruction of the user's field of vision can be reduced to facilitate cooking operations.

[0018] In order to further reduce the risk of pot breaking and reduce the obstruction of the user's line of sight, the height of the lower end of the smoke shield in the second state is higher than the height of the lower end of the smoke shield in the first state.

[0019] Preferably, in order to further reduce the risk of pot hitting and reduce obstruction of the user's line of sight, the difference between the height of the lower end of the smoke shield in the second state and the height of the lower end of the smoke shield in the first state is X, and satisfies X=H+(cosβ*L3-cosα*L3), where L3 is the length of the smoke shield.

[0020] More preferably, the above parameter X also satisfies the following relationship: X>1.1*H, thereby better ensuring that the opening angle of the smoke shield meets the required smoke-collecting effect, while reducing the risk of pot hitting and reducing the obstruction of the user's line of sight.

[0021] The technical solution adopted by the utility model to solve the above-mentioned second technical problem is: the upper end of the smoke hood is connected to the fan frame, the horizontal distance from the first part of the front plate of the smoke hood to the back plate is d1, the thickness of the fan frame is d3, and d1≥1 / 3*d3 is satisfied.

[0022] This ensures that the opening at the connection between the smoke hood and the fan frame has a larger size to prevent the noise caused by the faster flow rate due to a smaller opening size.

[0023] Further, a first cavity is formed between the first part of the front plate of the smoke collecting hood and the back plate;

[0024] The height of the smoke hood is H1, and satisfies the following relationship: L1 / H1≥1 / 4.

[0025] Therefore, the first cavity has sufficient width and height, thereby forming a larger space for accommodating oil smoke, so as to better play a role in stabilizing pressure, further reduce noise, and facilitate the oil smoke to be sucked into the fan frame.

[0026] Furthermore, the height of the smoke hood is H1, and the height of the second part of the front plate of the smoke hood is L2, and the following relationship is satisfied: L2 / H1≥1 / 2, thereby, the height of the second part is larger, and due to the inclined setting of the second part, when the inclination angle of the second part relative to the back plate is determined, when L2 has a larger size, the lower part of the second part has a larger avoidance space for cookware, and at the same time, the front side of the second part has sufficient smoke gathering space to promote the inhalation of oil smoke.

[0027] Preferably, the parameter β also satisfies the following relationship: β>30°, so that sufficient smoke-collecting space is formed between the smoke baffle plate and the front plate.

[0028] Preferably, the parameter α also satisfies the following relationship: 15°<α<30°, so that the front side of the second part of the front plate has sufficient smoke-collecting space.

[0029] In order to facilitate the smoke baffle to move relative to the smoke collecting hood to produce a state change, the smoke baffle is connected to the smoke collecting hood via a movement mechanism.

[0030] Furthermore, an air inlet passage is formed between the fan system and the rear side wall of the fan frame, and the air inlet passage is a main air inlet passage of the fan system;

[0031] When the smoke shield is in the second state, on a second vertical plane, the extension line of the smoke shield does not intersect with the fan system, and the intersection of the extension line and the rear side wall of the fan frame is located at the rear side of the fan system, and the second vertical plane is a plane perpendicular to the first vertical plane. Thus, the smoke shield can guide the oil smoke to the main air inlet channel of the fan system, which is conducive to the rapid inhalation of the oil smoke by the fan system and improves the oil smoke absorption effect.

[0032] Furthermore, a shell is provided on one side of the smoke baffle plate facing the inside of the smoke collecting hood, and an accommodation space is formed between the shell and the smoke baffle plate to facilitate the arrangement of electronic and electrical components such as a control panel and a lighting lamp.

[0033] Furthermore, when the smoke baffle is in the second state, a cavity is formed between the first part of the front plate of the smoke hood and the smoke baffle, and at least a part of the shell is located in the cavity, thereby reducing the volume of the cavity and preventing too much oil smoke from gathering in the cavity when the oil smoke rises upward, forming a vortex or causing the oil smoke to escape.

[0034] Furthermore, when the smoke baffle is in the second state, an opening is formed between the upper end of the shell near the first part and the first part, the width of the opening is d4, the maximum width of the cavity is d5, and d4<d5 is satisfied. This can further limit the entry of oil smoke into the cavity and further prevent the oil smoke from forming a vortex in the cavity or causing the oil smoke to escape.

[0035] Compared with the prior art, the utility model has the following advantages: since the second part of the front plate is inclined relative to the back plate, and since the second part is located below the first part, it is closer to the pot. This inclined setting makes the space on the front side of the second part relatively larger, so as to leave more placement space for the pot and reduce the risk of interference. In addition, there is a larger space for operating the pot, which is also convenient for placing larger pots and expanding the usage scenarios. In addition, the overall position of the smoke shield in the second state is raised relative to that in the first state, and the smoke shield satisfies β>α in the two states. Therefore, the height of the smoke shield in the second state (when the range hood is working) along the vertical direction is less than the height in the first state, which is conducive to the position of the lower end of the smoke shield in the second state. That is, the lower end of the smoke shield in the second state is higher than the lower end of the smoke shield in the first state, so as to further reduce the risk of hitting the pot. At the same time, due to the increase in the height of the lower end of the smoke shield in the second state, the obstruction of the user's field of vision can be reduced to facilitate cooking operations. BRIEF DESCRIPTION OF THE DRAWINGS

[0036] Figure 1 This is a three-dimensional structural schematic diagram of a range hood according to the first embodiment of the utility model (closed state);

[0037] Figure 2 This is a side view of the range hood of the first embodiment of the utility model (closed state);

[0038] Figure 3 This is a three-dimensional structural schematic diagram of a range hood according to the first embodiment of the utility model (in an open state);

[0039] Figure 4 This is a side view of the range hood of the first embodiment of the utility model (in the open state);

[0040] Figure 5 It is a side cross-sectional view of the range hood of the first embodiment of the utility model (in an open state);

[0041] Figure 6 This is a side sectional view of a range hood according to a second embodiment of the utility model (in an open state). DETAILED DESCRIPTION

[0042] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0043] In the description of the present utility model, 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", "axial", "radial", "circumferential" and the like indicate the orientation or position relationship based on the orientation or position relationship shown in the drawings, which is only for the convenience of describing the present utility model 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. Since the embodiments disclosed in the present utility model can be set in different directions, these terms indicating directions are only for illustration and should not be regarded as limitations. For example, "up" and "down" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, the features defined as "first" and "second" may explicitly or implicitly include one or more of such features.

[0044] Embodiment 1

[0045] See also Figure 1 to Figure 5 A range hood comprises a fume collecting hood 1 and a fan frame 2. A fan system 3 is arranged in the fan frame 2. The fan system 3 is preferably a centrifugal fan.

[0046] The smoke hood 1 is connected to the fan frame 2, and the two are fluidically connected. In this embodiment, the smoke hood 1 is connected below the fan frame 2. The smoke hood 1 includes a front plate 11 and a back plate 12, which are arranged in a front-to-back spacing. The front plate 11 refers to the plate close to the user side when in use, and the back plate 12 refers to the plate close to the wall side where the range hood is installed when in use. The front plate 11 includes a first part 111 and a second part 112 arranged up and down, and the lower end of the first part 111 corresponds to the upper end of the second part 112. The two parts can be an integral structure or a split structure. The first part 111 is parallel to the back plate 12. In the installed state, the first part 111 and the back plate 12 are both vertical. The height of the smoke hood 1 in the vertical direction is H1, preferably, H1>500mm. The height of the first part 111 in the vertical direction is L1, and L1 / H1≥1 / 4 is satisfied. When L1 meets the above conditions, since there is a greater distance between the first part 111 and the back plate 12, it can provide a larger pressure stabilization space and accommodation space, which can reduce noise on the one hand and improve the fume extraction effect on the other hand. Inside the fume hood 1, a first cavity 151 is formed between the first part 111 and the back plate 12.

[0047] The second portion 112 is inclined relative to the back plate 12 and gradually approaches the back plate 12 from top to bottom. Inside the smoke hood 1, a second cavity 152 is formed between the second portion 112 and the back plate 12. Figure 5The middle dotted line M2 is the boundary between the first cavity 151 and the second cavity 152. Therefore, the horizontal distance between the lower end of the first part 111 and the back plate 12 (since the first part 111 and the back plate 12 are parallel, this distance is also the horizontal distance between the first part 111 and the back plate 12) is d1, and the horizontal distance between the lower end of the second part 112 and the back plate 12 is d2, and d1>d2 is satisfied, that is, the lower end of the second part 112 is closer to the back plate 112 than the lower end of the first part 111. Since the second part 112 is located below the first part 111, during the cooking operation, the second part 112 is closer to the pot than the first part 111, and its inclined setting can make the space for placing the pot larger, so as to improve the adaptability to large-sized pots.

[0048] The height of the second part 112 in the vertical direction is L2, and L2 / H1≥1 / 2 is satisfied. After satisfying this relationship, when the inclination angle of the second part 112 relative to the back plate 12 is determined, when L2 has a larger size, the lower part of the second part 112 has a larger avoidance space for the pot, and at the same time, the front side of the second part 112 has sufficient smoke-collecting space to promote the inhalation of oil smoke.

[0049] The fan frame 2 has a front side wall 21 and a rear side wall 22 arranged in a front-to-back spacing. The thickness of the fan frame 2 (the horizontal distance between the front side wall 21 and the rear side wall 22 of the fan frame 2) is d3, and d1≥1 / 3*d3 is satisfied, so that the upper end of the smoke hood 1 and the fan frame 2 can have a larger opening 14 size at the connection, so as to prevent the opening 14 from being too small and causing noise due to the accelerated flow rate. Here, the opening 14 refers to Figure 5 The width of the opening 14 in the left-right direction is substantially equal to the horizontal distance between the first portion 111 and the back plate 12 .

[0050] Since the distance between the first part 111 and the back plate 12 is relatively large (d1≥1 / 3*d3), the first cavity 151 can provide a relatively large accommodation space to stabilize the pressure. Since the second part 112 is relatively high and inclined, a relatively large smoke collecting space can be provided in front of the second part 112, thereby reducing the escape of oil smoke.

[0051] A smoke inlet 13 is provided on the second part 112 for the smoke to be sucked in, and then enter the fan frame 2 upward and be discharged through the fan system 3. The range hood also includes a smoke baffle 4, which is connected to the smoke hood 1 through a motion mechanism (not shown), so that the smoke baffle 4 is constrained on the smoke hood 1 in a manner that it can move relative to the smoke hood 1. The motion mechanism is a prior art, so that the smoke baffle 4 can rotate relative to the smoke hood 1 without a fixed axis, that is, the smoke baffle 4 can achieve a compound movement of rotation and lifting. For example, reference may be made to the Chinese patents of the applicant with application numbers 202021637820.9, 202320250234.6, etc.

[0052] Due to the provision of the above-mentioned movement mechanism, the smoke shield 4 can have a first state and a second state: when the smoke shield 4 is in the first state, it covers the second portion 112 of the front plate 11, and the smoke inlet 13 is also covered by it, and the upper end of the smoke shield 4 can be close to the lower end of the first portion 111 of the front plate 11. At this time, the angle between the smoke shield 4 and the first vertical plane S1 is α, and the first vertical plane S1 is a plane parallel to the back plate 12, such as Figure 3 Preferably, the value range of α satisfies 15°<α<30° (such as Figure 2 As shown, α here is determined based on the distance between the front of the smoke baffle 4 and the first vertical plane S1); when the smoke baffle 4 is in the second state, the upper end of the smoke baffle 4 is higher than the lower end of the first part 111, and the distance from the upper end of the smoke baffle 4 to the lower end of the first part 111 in the vertical direction is H, and H>0.3*L1 is satisfied. At this time, the smoke inlet 13 is no longer covered by the smoke baffle 4 and is open to absorb oil fumes. Therefore, in this second state, the overall position of the smoke baffle 4 is raised relative to the first state, which can reduce the risk of it hitting the pot. In addition, when the smoke baffle 4 is in the second state, the angle between the smoke baffle 4 and the first vertical plane S1 is β, preferably, β>30° (such as Figure 4 As shown, β here is determined based on the front or back side of the smoke baffle 4 and the above-mentioned first vertical plane S1. Regardless of whether it is based on the front or back side of the smoke baffle 4, the value of β is the same). In addition, β>α is also satisfied, so that the height of the smoke baffle 4 in the vertical direction in the second state is less than the height in the vertical direction in the first state, which is conducive to the position of the lower end of the smoke baffle 4 in the second state. That is, the lower end of the smoke baffle 4 in the second state is higher than the lower end of the smoke baffle 4 in the first state, so as to further reduce the risk of breaking the pot. At the same time, due to the increase in the height of the lower end of the smoke baffle 4 in the second state, the obstruction of the user's field of vision can be reduced to facilitate cooking operations. The difference between the height of the lower end of the smoke baffle 4 in the second state and the height of the lower end in the first state is X, and X=H+(cosβ*L3-cosα*L3), where L3 is the length of the smoke baffle 4. Preferably, X>1.1*H.

[0053] The fan system 3 is a single-inlet fan with the air inlet facing backwards, or a double-inlet fan with the rear side as the main air inlet and the front side as the auxiliary air inlet. An air inlet channel Q1 is formed between the fan system 3 and the rear side wall 22 of the fan frame 2, and the air inlet channel Q1 is the main air inlet channel of the fan system 3.

[0054] In a second vertical plane S2, the second vertical plane S2 is a plane intersecting the front plate 11 and the back plate 12, and is perpendicular to the first vertical plane S1. Figure 3 As shown in , when the smoke baffle 4 is in the second state, its extension line M1 (since the smoke baffle 4 is a flat plate with uniform thickness, the extension line M1 is the extension line of the surface of the smoke baffle 4 or the surface inside the smoke baffle 4 parallel to the surface in the second vertical plane S2) does not intersect with the fan system 3, and the intersection of the extension line M1 of the smoke baffle 4 and the rear side wall 22 of the fan frame 2 is located at the rear side of the fan system 3. Here, "not intersecting" means that on the projection of the first vertical plane S1, the portion of the extension line M1 corresponding to the fan system 3 is located below the fan system 3, and there is no intersection between the two. As a result, the smoke baffle 4 can guide the oil smoke to the air inlet channel Q1, which is conducive to improving the efficiency of oil smoke absorption.

[0055] Embodiment 2

[0056] See also Figure 6 In this embodiment, the difference from the above-mentioned embodiment 1 is that a shell 5 is provided on the back side of the smoke baffle 4 facing the inside of the smoke hood 1, and an accommodating space 51 is formed between the shell 5 and the smoke baffle 4 for arranging electronic and electrical components such as a control panel and a lighting lamp.

[0057] When the smoke baffle 4 is in the second state, a cavity 41 is formed between it and the first part 111 of the front plate 11 of the smoke hood 1, and the shell 5 is at least partially located in the cavity 41, thereby reducing the volume of the cavity 41 and preventing too much oil smoke from gathering in the cavity 41 to form a vortex or cause the oil smoke to escape. At the same time, a mouth 52 is formed between the upper end of the shell 5 close to the side of the first part 111 and the first part 111, and the width of the mouth 52 is d4. The maximum width of the cavity 41 is d5, and d4<d5 is satisfied, thereby further limiting the oil smoke from entering the cavity 41. The width here refers to Figure 6 Dimensions in the left-right direction are shown in .

[0058] The "fluid communication" referred to in the present invention refers to the spatial position relationship between two parts or parts (hereinafter collectively referred to as the first part and the second part), that is, the fluid (gas, liquid or a mixture of the two) can flow from the first part along the flow path or / and be transported to the second part. The first part and the second part can be directly connected, or the first part and the second part can be indirectly connected through at least one third party. The third party can be a fluid channel such as a pipe, channel, duct, guide member, hole, groove, etc., or it can be a chamber allowing fluid to flow through, or a combination of the above.

Claims

1. A range hood, comprising: A fan frame (2) having a fan system (3) disposed therein; A smoke collecting hood (1) connected to the fan frame (2), the smoke collecting hood (1) comprising a front plate (11) and a back plate (12) arranged at intervals, the front plate (11) comprising a first part (111) and a second part (112) arranged up and down, the upper end of the second part (112) corresponds to the lower end of the first part (111), the first part (111) is parallel to the back plate (12), the height of the first part (111) is L1, and the second part (112) is provided with a smoke inlet (13); and Smoke shield (4); Features: The second portion (112) of the front plate (11) is arranged obliquely relative to the back plate (12), and the lower end of the second portion (112) is closer to the back plate (12) than the upper end of the second portion (112); The smoke baffle has a first state and a second state: When in the first state, the smoke shield (4) covers the second portion (112) of the front plate (11), and the smoke inlet (13) is covered by the smoke shield (4), and the angle between the smoke shield (4) and the first vertical plane (S1) is α, and the first vertical plane (S1) is a plane parallel to the back plate (12); When in the second state, the upper end of the smoke shield (4) is higher than the lower end of the first part (111) of the front plate (11), the distance from the upper end of the smoke shield (4) to the lower end of the first part (111) in the vertical direction is H, and H>0.3*L1 is satisfied, and the angle between the smoke shield (4) and the first vertical plane (S1) is β, and β>α is satisfied.

2. The range hood according to claim 1, characterized in that: The height of the lower end portion of the smoke shield (4) in the second state is higher than the height of the lower end portion of the smoke shield (4) in the first state.

3. The range hood according to claim 2, characterized in that: The difference between the height of the lower end of the smoke shield (4) in the second state and the height of the lower end of the smoke shield (4) in the first state is X, and X=H+(cosβ*L3-cosα*L3), where L3 is the length of the smoke shield (4).

4. The range hood according to claim 3, characterized in that: The above parameter X also satisfies the following relationship: X>1.1*H.

5. The range hood according to claim 1, characterized in that: The upper end of the smoke hood (1) is connected to the fan frame (2), the horizontal distance from the first part (111) of the front plate (11) of the smoke hood (1) to the back plate (12) is d1, the thickness of the fan frame (2) is d3, and d1≥1 / 3*d3 is satisfied.

6. The range hood according to claim 5, characterized in that: A first cavity (151) is formed between the first part (111) of the front plate (11) of the smoke collecting hood (1) and the back plate (12); The height of the smoke hood (1) is H1, and satisfies the following relationship: L1 / H1≥1 / 4.

7. The range hood according to claim 1, characterized in that: The height of the smoke hood (1) is H1, the height of the second part (112) of the front plate (11) of the smoke hood (1) is L2, and the following relationship is satisfied: L2 / H1≥1 / 2.

8. The range hood according to claim 1, characterized in that: The above parameter β also satisfies the following relationship: β>30°.

9. The range hood according to claim 1, characterized in that: The above parameter α also satisfies the following relationship: 15°<α<30°.

10. The range hood according to claim 1, characterized in that: The smoke baffle (4) is connected to the smoke collecting hood (1) via a moving mechanism.

11. The range hood according to claim 1, characterized in that: An air inlet channel (Q1) is formed between the fan system (3) and a rear side wall (22) of the fan frame (2) located at the rear side, and the air inlet channel (Q1) is a main air inlet channel of the fan system (3); When the smoke shield (4) is in the second state, on a second vertical plane (S2), an extension line (M1) of the smoke shield (4) does not intersect with the fan system (3), and an intersection point between the extension line (M1) and the rear side wall (22) of the fan frame (2) is located at the rear side of the fan system (3), and the second vertical plane (S2) is a plane perpendicular to the first vertical plane (S1).

12. The range hood according to claim 1, characterized in that: A shell (5) is provided on one side of the smoke baffle (4) facing the inside of the smoke collecting hood (1), and an accommodating space (51) is formed between the shell (5) and the smoke baffle (4).

13. The range hood according to claim 12, characterized in that: When the smoke baffle (4) is in the second state, a cavity (41) is formed between the first portion (111) of the front plate (11) of the smoke hood (1) and the smoke baffle (4), and at least a portion of the shell (5) is located in the cavity (41).

14. The range hood according to claim 13, characterized in that: When the smoke baffle (4) is in the second state, a mouth (52) is formed between the upper end of the shell (5) close to the side of the first part (111) and the first part (111), the width of the mouth (52) is d4, the maximum width of the cavity (41) is d5, and d4<d5 is satisfied.

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