Range hood

Abstract

The utility model relates to a range hood, which comprises a casing, an air inlet, an air outlet and a fan, the smoke baffle is rotationally arranged at the air inlet of the machine shell and can open and close the air inlet; the side smoke gathering plate assembly comprises two side smoke gathering plates located on the left side and the right side of the machine shell respectively, and the two side smoke gathering plates can deflect forwards and stretch out relative to the machine shell around the rotating axis extending left and right to correspondingly shield the left side and the right side of the smoke blocking plate in the state that the air inlet is opened. Each side smoke gathering plate comprises at least two smoke gathering plates which are sequentially arranged in the radial direction perpendicular to the rotating axis, and each smoke gathering plate can independently deflect forwards and stretch out relative to the shell and deflect backwards to be contained in the machine shell. According to different cooking conditions, opening and hiding of the corresponding smoke gathering plates can be adjusted according to the magnitude of oil smoke and air volume partial pressure, the smoke sucking effect is guaranteed, and the cooking experience is improved for a user.

Description

Technical Field

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

[0002] A range hood is a kitchen appliance that purifies the kitchen environment. Among them, side-suction range hoods are increasingly loved and pursued by more and more users due to their advantages such as good extraction effect, no head collision, and more suitable for Chinese families. However, the existing side-suction range hoods are prone to the problem of oil smoke escaping to both sides in a fierce cooking environment. In order to solve this problem, many people choose to add smoke collecting plates on both sides of the range hood to alleviate this problem. For example, "A Range Hood with Sliding Smoke Collecting Wings" with application number CN201920960368.0, "A Wind Guide Plate Assembly and Range Hood" with application number CN202210771470.2, "A Range Hood with Smoke Collecting Structure" with application number CN202222016552.4, and "A Range Hood" with application number CN201921493930.X all disclose a range hood structure with a side smoke collecting plate added to the side.

[0003] However, the existing range hoods with side smoke collecting plates added to the side still have certain shortcomings. First, the radial length (the length starting from its rotation center) of the side smoke collecting plates of the existing range hoods is basically fixed. If the smoke collecting plate is made too large, it is not only easy to block the lighting light, but also easy to cause airtight pressure to the user, affecting the cooking experience. If the smoke collecting plate is made too small, the smoke collecting effect is not obvious. In particular, since the radial length of this side smoke collecting plate is fixed, it is impossible to achieve flow regulation under different cooking conditions. For example, under stir-frying conditions, the smoke collecting plate should cover a large area, while under stewing conditions, the smoke collecting plate should cover a small area. Secondly, when a small amount of oil smoke escapes to the outside of the side smoke collecting plate, the side smoke collecting plate lacks a channel for the oil smoke to flow, which hinders the extraction of this part of the oil smoke, thereby increasing the risk of oil smoke escaping to the side to a certain extent.

[0004] Therefore, existing range hoods need further improvement. Utility Model Content

[0005] The first technical problem to be solved by the utility model is to provide a range hood which can ensure the brightness of the cooking environment to the greatest extent while ensuring the smoke-collecting effect, and avoid giving the user a sense of oppression due to a closed space, in view of the current status of the existing technology.

[0006] The second technical problem to be solved by the utility model is to provide a range hood with side smoke collecting plates having different opening sizes according to different cooking conditions in view of the current status of the prior art.

[0007] The third technical problem to be solved by the utility model is to provide a range hood that can effectively capture the oil smoke escaping laterally and ensure the overall smoking effect in view of the current status of the prior art.

[0008] The technical solution adopted by the utility model to solve any one of the first technical problem and the second technical problem is: a range hood, comprising:

[0009] The casing has an air inlet on its front side wall;

[0010] A smoke baffle, rotatably disposed at the air inlet of the housing, and capable of opening and closing the air inlet;

[0011] A side smoke collecting plate assembly, comprising two side smoke collecting plates respectively located on the left and right sides of the housing, wherein the two side smoke collecting plates can be deflected and extended forward relative to the housing around a rotation axis extending left and right to correspondingly cover the left and right sides of the smoke shield in the state where the air inlet is opened;

[0012] Each of the side smoke collecting plates comprises at least two smoke collecting plates which are arranged in sequence along a radial direction perpendicular to the rotation axis, and each of the smoke collecting plates can independently deflect forwardly and extend out relative to the shell body and deflect backwardly to be accommodated in the shell body.

[0013] The side smoke collecting plate of the range hood is designed to be a plurality of sections (smoke collecting plates) arranged in sequence along the radial direction perpendicular to the rotation axis. The multi-section smoke collecting plates can be adjusted according to different cooking conditions (such as the size of oil smoke, air volume and air pressure, etc.). For example, when the oil smoke and air volume and air pressure are small, only one smoke collecting plate adjacent to the rotation axis can be opened, while the other smoke collecting plates far away from the rotation axis are hidden, thereby ensuring the brightness of the cooking environment to the greatest extent and avoiding the user's sense of oppression of a closed space; when the oil smoke and air volume and air pressure gradually increase, the other smoke collecting plates far away from the rotation axis can also be gradually opened, thereby improving the smoke collecting effect and reducing the escape of oil smoke from the side. This type of segmented concealable smoke collecting plate can be used for different cooking conditions. The corresponding smoke collecting plate can be opened and hidden according to the size of the oil smoke and air volume pressure, which not only ensures the smoking effect, but also improves the cooking experience for users.

[0014] In order to simplify the matching structure between the side cigarette collecting plates, one of the two adjacent cigarette collecting plates arranged in sequence along the radial direction perpendicular to the rotation axis is adjacent to the rotation axis as the first cigarette collecting plate, and the other away from the rotation axis is the second cigarette collecting plate. The side edge of the first cigarette collecting plate away from the rotation axis is an arc-shaped edge centered on the position of the rotation axis, and the side edge of the second cigarette collecting plate adjacent to the rotation axis is also an arc-shaped edge centered on the position of the rotation axis. The arc-shaped edge of the first cigarette collecting plate in the extended state can be connected with the arc-shaped edge of the second cigarette collecting plate in the extended state to form a complete cigarette collecting plate structure. It is conceivable that the first cigarette collecting plate and the second cigarette collecting plate can be designed to fit together on the left and right, and the first cigarette collecting plate and the second cigarette collecting plate partially overlap.

[0015] In order to conveniently control the forward and backward deflection of each of the side cigarette collecting plates, each of the side cigarette collecting plates is driven by an independent motion mechanism to deflect forward and extend out relative to the casing or deflect backward and be stored in the casing.

[0016] In order to ensure the stability of the forward and backward deflection process of each side smoke collecting plate, the movement mechanism includes a mounting bracket fixed relative to the casing and having an arc-shaped slide, and an arc-shaped support arm slidably arranged in the arc-shaped slide of the mounting bracket, the end of the arc-shaped support arm is connected to the smoke collecting plate, and the arc-shaped slide is an arc shape with the position of the rotation axis as the center.

[0017] The forward and backward deflection of each side cigarette collecting plate can be achieved by manual operation or by a motion mechanism. Preferably, the motion mechanism also includes a driving motor and a telescopic rod with retractable length. The first end of the telescopic rod is connected to the output shaft of the driving motor and rotates under the drive of the driving motor. The second end of the telescopic rod is connected to the arc-shaped support arm.

[0018] As an improvement, the casing includes a left wall and a right wall opposite to each other, and a motion mechanism for driving each of the smoke collecting plates to move is correspondingly arranged on the left wall or the right wall of the casing.

[0019] In order to realize automatic control of the forward and backward deflection process of each smoke collecting plate and provide users with a better usage experience, it also includes an oil smoke sensor for detecting the size of the oil smoke. The driving motor of the motion mechanism for driving the movement of each smoke collecting plate and the oil smoke sensor are electrically connected to the control system of the range hood. The control system controls the action of the driving motor of the motion mechanism corresponding to each smoke collecting plate according to the oil smoke size signal transmitted by the oil smoke sensor.

[0020] In order to prevent oil smoke from escaping at the contact position between the smoke collecting plate and the smoke baffle plate, when each of the side smoke collecting plates is in a state of extending forward from the casing, the front edges of each of the side smoke collecting plates can be connected with the back side, left side edge or right side edge of the smoke baffle plate in the state of opening the air inlet.

[0021] The technical solution adopted by the utility model to solve the third technical problem is: a smoking hole is also provided on the side smoke collecting plate. After the smoking hole is provided on the side smoke collecting plate, the principle of airflow flowing from a high-pressure area to a low-pressure area can be used to enable the range hood to capture a small amount of oil smoke escaping laterally, thereby improving the overall smoke exhaust effect.

[0022] Taking into account that the oil smoke escaping laterally will rise upward after passing over the bottom edge of the side smoke collecting plate, in order to further improve the effect of the range hood in capturing the oil smoke escaping laterally, the side smoke collecting plate has a plurality of smoking holes arranged in sequence along a radial direction perpendicular to the rotation axis, and each of the smoking holes is an arc-shaped hole centered on the position of the rotation axis.

[0023] Further improvement, the side smoke collecting plate has a first side facing the side where the air inlet of the housing is located and a second side facing away from the side where the air inlet of the housing is located, and the opening size of the smoking hole on the side smoke collecting plate gradually decreases from the first side to the second side. The smoking hole is designed to be larger on the inside and smaller on the outside, and the negative pressure principle of the airflow can be used to change the direction of the airflow, so that the escaping oil smoke can be captured into the smoke collecting chamber, and then discharged outdoors or to a public flue.

[0024] Compared with the prior art, the advantages of the utility model are as follows: the side smoke collecting plate of the range hood is designed to be arranged in multiple sections (smoke collecting plates) in sequence along the radial direction perpendicular to the rotation axis. The multiple sections of smoke collecting plates can be adjusted according to different cooking conditions (such as the size of oil smoke, air volume and air pressure, etc.). For example, when the oil smoke and air volume and air pressure are small, only one smoke collecting plate adjacent to the rotation axis can be opened, while the other smoke collecting plates far away from the rotation axis are hidden, thereby ensuring the brightness of the cooking environment to the greatest extent and avoiding the user's sense of oppression of a closed space; when the oil smoke and air volume and air pressure gradually increase, the other smoke collecting plates far away from the rotation axis can also be gradually opened, thereby improving the smoke collecting effect and reducing the escape of oil smoke from the side. This type of segmented concealable smoke collecting plate can adjust the opening and hiding of the corresponding smoke collecting plate according to the size of the oil smoke and air volume pressure for different cooking conditions, which not only ensures the smoking effect, but also improves the cooking experience for users. In the preferred solution, a smoking hole is opened on the side smoke collecting plate, and the negative pressure principle of airflow can be used to allow the range hood to successfully capture the oil smoke escaping sideways, further ensuring the overall smoking effect. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a three-dimensional structural schematic diagram of a range hood according to an embodiment of the utility model;

[0026] Figure 2 It is a three-dimensional structural schematic diagram of the range hood of the embodiment of the utility model from another angle;

[0027] Figure 3 This is a left view of the smoke collecting hood of the embodiment of the utility model (the left side plate is omitted, and only the first smoke collecting plate is in an extended state);

[0028] Figure 4 It is a left view of the smoke collecting hood of the embodiment of the utility model (the left side plate is omitted, and only the first and second smoke collecting plates are in the extended state);

[0029] Figure 5 It is a left view of the smoke collecting hood of the embodiment of the utility model (the left side plate is omitted, and the first, second and third smoke collecting plates are all in an extended state);

[0030] Figure 6 This is a sectional stereoscopic view of the first smoke collecting plate according to an embodiment of the utility model. DETAILED DESCRIPTION

[0031] The present invention will be described in further detail below in conjunction with the accompanying drawings.

[0032] In the specification and claims of the present invention, terms indicating directions, such as "front", "rear", "up", "down", "left", "right", "side", "top", "bottom", etc., are used to describe various exemplary structural parts and elements of the present invention, but these terms are used here only for the purpose of convenience of description and are determined based on the exemplary orientations shown in the accompanying drawings. Since the embodiments disclosed in the present invention can be arranged in different directions, these terms indicating directions are only used as explanations 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.

[0033] Figure 1-Figure 6A preferred embodiment of the range hood of the utility model is shown. The range hood is a side suction range hood, which includes a housing 10 and a centrifugal fan arranged in the housing 10. The housing 10 generally includes a fan frame 11 and a fume hood 12 arranged at the bottom of the fan frame 11. The inner cavity of the fan frame 11 is connected to the inner cavity of the fume hood 12. An air inlet 120 (not shown) is provided on the front side wall of the fume hood 12, and external smoke can enter the fume hood 12 through the air inlet 120. The centrifugal fan is arranged in the fan frame 11. When the centrifugal fan is running, negative pressure is generated, and external oil smoke can be sucked into the fume hood 12 through the air inlet 120. An oil net is also provided at the air inlet 120 of the fume hood 12 for filtering oil smoke. An oil cup 14 is provided at the bottom of the fume hood 12. The oil cup 14 is in the shape of a long strip extending left and right, and is used to receive the oil stains flowing down from the fume hood 12. The front part of the smoke hood 12 is also provided with a smoke shield 13 that can be deflected forward and backward relative to the smoke hood 12. The smoke shield 13 is connected to the main body of the smoke hood 12 through a hinge motion mechanism, and can be deflected forward to open the air inlet 120 and deflected backward to block and close the air inlet 120. The hinge motion mechanism used to drive the smoke shield 13 to deflect can adopt a conventional hinge motion mechanism in the prior art, which will not be described in detail here.

[0034] Since the side-suction range hood is prone to the problem of oil smoke escaping to both sides under a severe cooking environment, the range hood of this embodiment further includes a side smoke collecting plate assembly 20. Specifically, the side smoke collecting plate assembly 20 includes two side smoke collecting plates respectively located on the left and right sides of the housing 10. The two side smoke collecting plates can be deflected and extended forward relative to the housing 10 around the rotation axis extending left and right to correspondingly block the left and right sides of the smoke baffle 13 in the state of opening the air inlet 120. Each side smoke collecting plate includes at least two smoke collecting plates arranged in sequence along the radial direction perpendicular to the rotation axis, and each smoke collecting plate can independently deflect and extend forward relative to the housing and deflect backward to be stored in the housing 10.

[0035] In this embodiment, each side smoke collecting plate includes three smoke collecting plates arranged in sequence. The three smoke collecting plates are arranged in sequence along the radial direction perpendicular to the rotation axis, and are respectively recorded as the first smoke collecting plate 21, the second smoke collecting plate 22 and the third smoke collecting plate 23, wherein the first smoke collecting plate 21 is adjacent to the rotation axis, the third smoke collecting plate 23 is away from the rotation axis, and the second smoke collecting plate 22 is located between the first smoke collecting plate 21 and the second smoke collecting plate 22. The first smoke collecting plate 21 is a triangular plate, and the second smoke collecting plate 22 and the third smoke collecting plate 23 are both fan-shaped. The side edge of the first cigarette collecting plate 21 away from the rotation axis is an arc-shaped edge centered on the position of the rotation axis, and the side edge of the second cigarette collecting plate 22 adjacent to the rotation axis is also an arc-shaped edge centered on the position of the rotation axis. The arc-shaped edge of the first cigarette collecting plate 21 in the extended state can be smoothly connected with the arc-shaped edge of the second cigarette collecting plate 22 in the extended state. Similarly, the side edge of the second cigarette collecting plate 22 away from the rotation axis is also an arc-shaped edge centered on the position of the rotation axis, and the side edge of the third cigarette collecting plate 23 adjacent to the rotation axis is also an arc-shaped edge centered on the position of the rotation axis. The arc-shaped edge of the second cigarette collecting plate 22 in the extended state can be smoothly connected with the arc-shaped edge of the third cigarette collecting plate 23 in the extended state, so that the three cigarette collecting plates can form a complete cigarette collecting plate structure.

[0036] When the side smoke collecting plates are in a state of extending forward from the housing 10, the front edges of the side smoke collecting plates can be in contact with the back side, left side edge or right side edge of the smoke baffle 13 in a state of opening the air inlet 120, thereby preventing the smoke from escaping at the contact position between the smoke collecting plates and the smoke baffle 13. The front and rear deflection angles of the smoke collecting plates can be achieved by controlling the motion stroke of the motion mechanism.

[0037] The above three cigarette collecting plates of this embodiment are all driven by independent motion mechanisms and are deflected forward and extended relative to the housing 10 or deflected backward and stored in the housing 10. Among them, the motion mechanism used to drive the first cigarette collecting plate 21 to move is recorded as the first motion mechanism, the motion mechanism used to drive the second cigarette collecting plate 22 to move is recorded as the second motion mechanism, and the motion mechanism used to drive the third cigarette collecting plate 23 to move is recorded as the third motion mechanism. Each motion mechanism includes a mounting bracket 30, an arc-shaped support arm 31, a driving motor 41 and a telescopic rod 42, wherein the mounting bracket 30 is fixed relative to the housing 10, and has an arc-shaped slideway, which is arc-shaped and takes the position where the rotation axis is located as the center. The arc-shaped support arm 31 is slidably arranged in the arc-shaped slideway of the mounting bracket 30, and the curvature of the arc-shaped support arm 31 is substantially consistent with the arc-shaped slideway. The end of the arc-shaped support arm 31 is connected to the cigarette collecting plate, and when the arc-shaped support arm 31 gradually extends out of the arc-shaped slideway of the mounting bracket 30, it can drive the corresponding cigarette collecting plate to deflect forward and extend relative to the housing 10. When the arc-shaped support arm 31 gradually retracts into the arc-shaped slideway of the mounting bracket 30, the corresponding smoke collecting plate can be driven to deflect backward relative to the housing 10 and stored. The smoke collecting hood 12 of this embodiment includes a left side wall 121 and a right side wall 122 opposite to each other, and the motion mechanism for driving each smoke collecting plate to move is correspondingly arranged on the left side wall 121 or the right side wall 122 of the housing 10. The arc-shaped support arm 31 and the arc-shaped slideway matching structure between the mounting bracket 30 effectively ensure the stability of the front and rear deflection process of each smoke collecting plate of the side smoke collecting plate, and there is no need to set a corresponding rotating pin shaft, which simplifies the installation structure of the smoke collecting plate and does not occupy the installation space. The driving motor 41 cooperates with the telescopic rod 42 to drive the arc-shaped support arm 31 to move relative to the mounting bracket 30. Specifically, the telescopic rod 42 is telescopic in length, the first end of the telescopic rod 42 is connected to the output shaft of the driving motor 41, and rotates under the drive of the driving motor 41, and the second end of the telescopic rod 42 is connected to the arc-shaped support arm 31. When the cigarette collecting plate needs to be extended, the driving motor 41 drives the telescopic rod 42 to rotate forward, the arc-shaped support arm 31 gradually extends from the arc-shaped slideway of the mounting bracket 30, and the telescopic rod 42 also extends accordingly to compensate in the radial direction. When the cigarette collecting plate needs to be retracted, the driving motor 41 drives the telescopic rod 42 to rotate in the opposite direction, the arc-shaped support arm 31 also gradually retreats into the arc-shaped slideway of the mounting bracket 30, and the telescopic rod 42 also retracts accordingly.

[0038] Each of the side smoke collecting plates of the present embodiment is also provided with a smoking hole 200. Among them, the smoking holes 200 on the side smoke collecting plate are arranged in sequence along the radial direction perpendicular to the rotation axis, and each smoking hole 200 is an arc-shaped hole centered at the position where the rotation axis is located, and the length of the arc segment of each smoking hole 200 gradually increases from the position adjacent to the rotation axis to the position away from the rotation axis. After the smoking holes 200 are provided on the side smoke collecting plate, the principle of airflow flowing from the high-pressure area to the low-pressure area can be used to enable the range hood to capture a small amount of oil smoke escaping laterally, thereby improving the overall smoke exhaust effect. Considering that the oil smoke escaping laterally will rise upward after passing over the bottom edge of the side smoke collecting plate, the multiple smoking holes 200 arranged in sequence along the radial direction of the side smoke collecting plate can capture this part of the rising oil smoke, further improving the effect of the range hood in capturing the oil smoke escaping laterally.

[0039] See also Figure 6 The side smoke collecting plate has a first side surface 201 facing the side where the air inlet 120 of the housing 10 is located, and a second side surface 202 facing away from the side where the air inlet 120 is located. The opening size of the smoke-intake hole 200 on the side smoke-intake plate gradually decreases from the first side surface 201 to the second side surface 202, that is, the smoke-intake hole 200 is a tapered hole structure with a larger inner side and a smaller outer side. This design can utilize the negative pressure principle of airflow to change the direction of airflow, capture the escaping oil smoke into the smoke collecting chamber, and then discharge it outdoors or to a public flue.

[0040] The range hood of this embodiment also includes a fume sensor for detecting the size of the fume. The driving motor 41 of the motion mechanism for driving each fume collecting plate to move and the fume sensor are electrically connected to the control system of the range hood, and the control system controls the driving motor 41 of the motion mechanism corresponding to each fume collecting plate to move according to the fume size signal transmitted by the fume sensor. For example, when the fume is small and the air volume and air pressure are small, the first motion mechanism drives the first fume collecting plate 21 to open, and the second fume collecting plate 22 and the third fume collecting plate 23 are hidden; when the fume and air volume and air pressure are medium, the first motion mechanism and the second motion mechanism respectively drive the first fume collecting plate 21 and the second fume collecting plate 22 to open, and the third fume collecting plate 23 is hidden; when the fume and air volume and air pressure are large, the first fume collecting plate 21, the second fume collecting plate 22 and the third fume collecting plate 23 are all opened under the drive of the first motion mechanism, the second motion mechanism and the third motion mechanism respectively.

Claims

1. A range hood, comprising: The casing (10) has an air inlet (120) formed on its front side wall; A smoke baffle (13) is rotatably disposed at the air inlet (120) of the housing (10) and is capable of opening and closing the air inlet (120); A side smoke collecting plate assembly (20) comprises two side smoke collecting plates respectively located on the left and right sides of the housing (10), the two side smoke collecting plates being able to be deflected and extended forward relative to the housing (10) around a rotation axis extending left and right to correspondingly cover the left and right sides of the smoke shielding plate (13) in a state where the air inlet (120) is opened; The feature is that each of the side smoke collecting plates comprises at least two smoke collecting plates arranged in sequence along a radial direction perpendicular to the rotation axis, and each of the smoke collecting plates can independently deflect forward and extend relative to the shell body and deflect backward to be accommodated in the shell (10).

2. The range hood according to claim 1, characterized in that: Of the two adjacent smoke collecting plates arranged in sequence along a radial direction perpendicular to the rotation axis, the one adjacent to the rotation axis is recorded as a first smoke collecting plate (21), and the one away from the rotation axis is recorded as a second smoke collecting plate (22). The side edge of the first smoke collecting plate (21) away from the rotation axis is an arc-shaped edge centered on the position of the rotation axis, and the side edge of the second smoke collecting plate (22) adjacent to the rotation axis is also an arc-shaped edge centered on the position of the rotation axis. The arc-shaped edge of the first smoke collecting plate (21) in an extended state can be connected to the arc-shaped edge of the second smoke collecting plate (22) in an extended state to form a complete smoke collecting plate structure.

3. The range hood according to claim 1, characterized in that: Each of the side cigarette collecting plates is driven by an independent motion mechanism to be deflected forwards and extended out relative to the casing (10) or deflected backwards and accommodated in the casing (10).

4. The range hood according to claim 3, characterized in that: The motion mechanism comprises a mounting bracket (30) fixed relative to the casing (10) and having an arc-shaped slideway, and an arc-shaped support arm (31) slidably arranged in the arc-shaped slideway of the mounting bracket (30), the end of the arc-shaped support arm (31) being connected to the smoke collecting plate, and the arc-shaped slideway is in the shape of a circular arc and is centered on the position of the rotation axis.

5. The range hood according to claim 4, characterized in that: The motion mechanism further comprises a driving motor (41) and a telescopic rod (42) with a telescopic length, wherein a first end of the telescopic rod (42) is connected to an output shaft of the driving motor (41) and rotates under the drive of the driving motor (41), and a second end of the telescopic rod (42) is connected to the arc-shaped support arm (31).

6. The range hood according to claim 4, characterized in that: The casing (10) comprises a left side wall (121) and a right side wall (122) which are opposite to each other, and a motion mechanism for driving each of the smoke collecting plates to move is correspondingly arranged on the left side wall (121) or the right side wall (122) of the casing (10).

7. The range hood according to claim 4, characterized in that: It also includes an oil smoke sensor for detecting the size of the oil smoke. The drive motor (41) of the motion mechanism for driving each of the smoke collecting plates to move and the oil smoke sensor are both electrically connected to the control system of the range hood. The control system controls the action of the drive motor (41) of the motion mechanism corresponding to each of the smoke collecting plates according to the oil smoke size signal transmitted by the oil smoke sensor.

8. The range hood according to claim 1, characterized in that: When each of the side smoke collecting plates is in a state of extending forward from the housing (10), the front edges of each of the side smoke collecting plates can be connected to the back side, left side edge or right side edge of the smoke baffle (13) in a state of opening the air inlet (120).

9. The range hood according to any one of claims 1 to 8, characterized in that: The side smoke collecting plate is also provided with a smoking hole (200).

10. The range hood according to claim 9, characterized in that: The smoking holes (200) on the side smoking plate are arranged in sequence along a radial direction perpendicular to the rotation axis, and each of the smoking holes (200) is an arc-shaped hole centered at the position of the rotation axis.

11. The range hood according to claim 9, characterized in that: The side smoke collecting plate comprises a first side surface (201) facing the side where the air inlet (120) of the housing (10) is located, and a second side surface (202) facing away from the side where the air inlet (120) of the housing (10) is located, and the opening size of the smoking hole (200) on the side smoke collecting plate gradually decreases from the first side surface (201) to the second side surface (202).

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