Range hood

Abstract

The utility model discloses a range hood, relates to the technical field of kitchen appliances, and aims to solve the problem that a user cannot accurately adjust the oil smoke extraction rate of the range hood. The extractor hood comprises an exhaust fume collecting hood, a rectifying plate, a driving part and a rocker arm, the exhaust fume collecting hood forms a containing cavity, and an exhaust inlet communicating the containing cavity with the exterior of the extractor hood is formed. The rectifying plate is arranged in the containing cavity and connected with the exhaust fume collecting hood, the rectifying plate and the exhaust fume collecting hood are arranged in a spaced mode in the first direction, the first direction is perpendicular to the axial direction of the exhaust fume collecting hood, and the rectifying plate can move in the direction close to the exhaust fume collecting hood. And the driving piece is connected with the exhaust fume collecting hood. The rocker arm is arranged in the containing cavity and connected with the driving piece, and the driving piece is used for driving the rocker arm to rotate so that the rocker arm can abut against the rectifying plate and push the rectifying plate to move in the direction close to the air suction opening. Therefore, the problem that a user cannot accurately adjust the oil smoke extraction speed of the range hood can be solved.

Description

Technical Field

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

[0002] The range hood is a kitchen appliance that purifies the kitchen environment. It is installed above the kitchen stove and can quickly remove the waste from stove combustion and the oil smoke generated during cooking that is harmful to the human body and discharge it outdoors. At the same time, it collects the oil droplets formed by the condensation of the oil smoke, reduces pollution, purifies the air, and has a safety guarantee function of anti-toxicity and explosion-proof.

[0003] However, as users adopt different cooking methods, the concentration of oil fumes generated during cooking will also be different. When faced with different oil fume concentrations, users usually adjust the exhaust effect of the range hood by adjusting the working gear of the fan component to meet their exhaust needs.

[0004] Since the range hood has a limited number of fan gears, the rate at which the range hood extracts oil fumes is also limited by the fan gears, and the user cannot accurately adjust the rate at which the range hood extracts oil fumes. Utility Model Content

[0005] The embodiment of the utility model provides a range hood, which solves the problem that the user cannot accurately adjust the rate at which the range hood extracts oil fumes.

[0006] In order to achieve the above object, the embodiment of the utility model adopts the following technical solution:

[0007] In a first aspect, an embodiment of the present application provides a range hood, comprising a smoke hood, a rectifying plate, a driving member, and a rocker arm, wherein the smoke hood forms a receiving chamber and forms an air suction port connecting the receiving chamber with the outside of the range hood. The rectifying plate is disposed in the receiving chamber, and the rectifying plate is connected to the smoke hood, the rectifying plate is spaced apart from the air suction port along a first direction, the first direction is perpendicular to the axial direction of the air suction port, and the rectifying plate can move toward the direction close to the air suction port. The driving member is connected to the smoke hood. The rocker arm is disposed in the receiving chamber, and the rocker arm is connected to the driving member, and the driving member is used to drive the rocker arm to rotate, so that the rocker arm abuts against the rectifying plate and pushes the rectifying plate to move toward the direction close to the air suction port.

[0008] The present application provides a rectifier plate at the air suction port, and can drive the rocker arm through a driving member to push the rectifier plate to move, so that the rectifier plate can move in a direction close to the air suction port. After the rectifier plate moves close to the air suction port, the radial size of the air suction channel formed on the rear side of the air suction port will be reduced. In this way, the flow rate of oil smoke after passing through the air suction port can be increased, thereby improving the air suction effect of the range hood.

[0009] Therefore, when the oil fume concentration increases in a small range, the user only needs to drive the rocker arm through the driving part to push the rectifier plate close to the air intake port, without adjusting the working gear of the fan assembly. This can more accurately adjust the rate at which the range hood extracts oil fume, improve the exhaust effect of the range hood, and further enhance the user experience.

[0010] In some embodiments, the range hood in the present application also includes a rebound member, one end of the rebound member is connected to the rectifier plate, and the other end of the rebound member is connected to the smoke hood and one of the driving member. In the process of the rocker arm pushing the rectifier plate to move toward the air intake port, the rebound member undergoes elastic deformation, and the rebound member generates an elastic force on the rectifier plate in the direction away from the air intake port.

[0011] In some embodiments, the rocker arm can push the rectifier plate to move from the first position to the second position; the range hood also includes a limit member, which is connected to the smoke hood and is located on one side of the rocker arm in the first direction, wherein when the rectifier plate is in the second position, the rocker arm abuts against the limit member.

[0012] In some embodiments, the range hood includes a first rotating shaft, and the thickness direction of the rectifying plate is perpendicular to the axial direction of the first rotating shaft, and the axial direction of the first rotating shaft is consistent with the direction in which the air inlet is away from the accommodating chamber. The first rotating shaft is fixedly connected to the fume collecting hood, the rectifying plate is rotatably connected to the first rotating shaft, and the rotation axis of the rectifying plate coincides with the rotation axis of the first rotating shaft.

[0013] In some embodiments, the range hood includes a first rotating shaft, and the thickness direction of the rectifying plate is perpendicular to the axial direction of the first rotating shaft, and the axial direction of the first rotating shaft is consistent with the direction in which the air inlet is away from the accommodating chamber. The first rotating shaft is rotatably connected to the fume collecting hood, the rotation axis of the rectifying plate coincides with the rotation axis of the first rotating shaft, and the rectifying plate is fixedly connected to the first rotating shaft.

[0014] In some embodiments, the smoke collecting hood includes a smoke collecting plate and a back plate arranged opposite to each other along a second direction, the smoke collecting plate forms an air suction port, and the second direction is consistent with the thickness direction of the back plate. The side wall surface of the rectifier plate close to the smoke collecting plate along the second direction is parallel to the plane where the smoke collecting plate is located. The side wall surface of the rectifier plate close to the back plate along the second direction is parallel to the plane where the back plate is located.

[0015] In some embodiments, the driving member includes a driving motor, and an output shaft of the driving motor is connected to the rocker arm.

[0016] In some embodiments, the smoke hood forms two air suction ports, the rocker arm includes a connecting portion and two push rods, the connecting portion is connected to the driving member, one end of the two push rods is connected to the connecting portion, and the other ends of the two push rods are arranged at intervals. The rectifying plate is located between the two push rods, and when the driving member drives the connecting portion to rotate, one of the two push rods can push the rectifying plate to rotate toward one of the two air suction ports.

[0017] In some embodiments, the smoke hood forms two air suction ports. The range hood includes two rectifier plates, which are disposed between the two air suction ports, and the two rectifier plates are disposed at intervals, and one rectifier plate corresponds to one air suction port. The rocker arm is disposed between the two rectifier plates, and when the driving member drives the rocker arm to rotate, the rocker arm can push one of the two rectifier plates close to the corresponding air suction port.

[0018] In a second aspect, an embodiment of the present application provides a range hood, comprising a smoke hood, a rectifier plate, a driving member, and a rocker arm, wherein the smoke hood forms a receiving chamber and forms an air suction port connecting the receiving chamber with the outside of the range hood. The rectifier plate is disposed in the receiving chamber, and the rectifier plate is connected to the smoke hood. The rectifier plate is spaced apart from the air suction port along a first direction, and the first direction is perpendicular to the axial direction of the air suction port. The rectifier plate can move toward the direction close to the air suction port. The driving member is disposed in the container, and the driving member is connected to the smoke hood. The rocker arm is disposed in the receiving chamber, and the driving member is connected to the driving member, and the driving member is used to drive the rocker arm to rotate, so that the rocker arm abuts against the rectifier plate and pushes the rectifier plate to move toward the direction close to the air suction port.

[0019] The beneficial effects described in the second aspect of this application can be referred to the analysis of the beneficial effects of the first aspect, and will not be repeated here. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 One of the structural diagrams of a range hood provided in an embodiment of the present application;

[0021] Figure 2 A second structural diagram of a range hood provided in an embodiment of the present application;

[0022] Figure 3 A third structural diagram of a range hood provided in an embodiment of the present application;

[0023] Figure 4 A fourth structural diagram of a range hood provided in an embodiment of the present application;

[0024] Figure 5 A fifth structural diagram of a range hood provided in an embodiment of the present application;

[0025] Figure 6 A sixth structural diagram of a range hood provided in an embodiment of the present application;

[0026] Figure 7 The seventh structural diagram of a range hood provided in an embodiment of the present application;

[0027] Figure 8 An eighth structural diagram of a range hood provided in an embodiment of the present application;

[0028] Fig. 9A ninth structural diagram of a range hood provided in an embodiment of the present application;

[0029] Fig.10 A tenth structural diagram of a range hood provided in an embodiment of the present application;

[0030] Fig.11 The eleventh structural diagram of a range hood provided in an embodiment of the present application;

[0031] Fig.12 The twelfth structural diagram of a range hood provided in an embodiment of the present application;

[0032] Fig.13 The thirteenth structural diagram of a range hood provided in an embodiment of the present application;

[0033] Fig.14 This is the fourteenth structural diagram of a range hood provided in an embodiment of the present application.

[0034] Figure numerals: 100-smoke hood; 1001-smoke collecting plate; 1002-back plate; 101-accommodating chamber; 102-air inlet; 103-rectifier plate; 104-driving member; 105-rocker arm; 1051-connecting part; 1052-push rod; 106-rebound member; 107-limiting member; 108-first rotating shaft; 200-fan assembly. DETAILED DESCRIPTION

[0035] The embodiments of the utility model are described in detail below with reference to the accompanying drawings.

[0036] In the description of the present invention, it should be understood that the terms "center", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction, and therefore should not be understood as a limitation on the present invention.

[0037] The terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "plurality" means two or more.

[0038] In the description of the present utility model, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be internal communication between two components. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances. In addition, when describing pipelines or channels, the "connected" and "connected" used in this application have the meaning of conduction. The specific meaning needs to be understood in conjunction with the context.

[0039] In the embodiments of the present application, words such as "exemplary" or "for example" are used to indicate examples, illustrations or descriptions. Any embodiment or design described as "exemplary" or "for example" in the embodiments of the present application should not be interpreted as being more preferred or more advantageous than other embodiments or designs. Specifically, the use of words such as "exemplary" or "for example" is intended to present related concepts in a specific way.

[0040] As used herein, "about," "substantially," or "approximately" includes the stated value and an average value that is within an acceptable range of deviation from the particular value, where the acceptable range of deviation is determined by one of ordinary skill in the art taking into account the measurements in question and the errors associated with the measurement of the particular quantity (i.e., the limitations of the measurement system).

[0041] In daily cooking, the concentration of oil smoke produced by different cooking methods is usually different. For example, when cooking, the ingredients are cooked quickly at high temperature, which will produce a lot of oil smoke, which contains components such as oil and protein, and the oil smoke concentration is high; while when steaming, water vapor evaporates to produce water vapor, and there is no large amount of oil burning like cooking, so the concentration of oil smoke produced is relatively low.

[0042] In daily use of the range hood, users can usually only control the smoke exhaust effect of the range hood by adjusting the wind speed of the range hood fan assembly 200, but the fan assembly 200 corresponds to relatively few working gears, and users cannot accurately adjust the rate at which the range hood extracts oil smoke.

[0043] In addition, when the oil fume concentration is low and the concentration will change within a small range, if the fan assembly 200 is still in a low gear, the oil fume generated during cooking cannot be completely absorbed by the range hood; if the fan assembly 200 is adjusted to a high gear, that is, using a high-grade exhaust when the oil fume concentration is low, although it can improve the exhaust effect of the range hood, it will cause the range hood to produce unnecessary noise interference, and at the same time will cause excessive exhaust, exhausting the indoor air together, causing the indoor temperature to change, affecting the comfort.

[0044] In addition, when the fan assembly 200 is at the highest gear but cannot meet the user's smoke exhaust needs, the user can only use the range hood to extend the working time of the fan assembly 200 to exhaust the fumes generated during cooking, and the range hood cannot further improve the smoke exhaust effect.

[0045] In order to solve the above technical problems, an embodiment of the present application provides a range hood to solve the problem that the range hood cannot flexibly adjust the wind speed when facing a small range of oil fume concentration changes.

[0046] In some embodiments, see Figure 1 The range hood in the present application includes a fume hood 100, which can collect oil smoke and fumes to prevent the oil smoke generated during cooking from spreading to other areas of the kitchen, thereby keeping the kitchen air clean.

[0047] In some embodiments, see Figure 2 The smoke collecting hood 100 in the present application forms a accommodating cavity 101 , and the smoke collecting hood 100 forms an air inlet 102 connecting the accommodating cavity 101 with the outside of the range hood, and the oil smoke generated during cooking can enter the accommodating cavity 101 of the smoke collecting hood 100 through the air inlet 102 .

[0048] In this way, the range hood collects the oil smoke generated during cooking into the accommodating chamber 101, thereby being able to more easily discharge the oil smoke to the outside, thereby improving the exhaust efficiency of the range hood.

[0049] In some embodiments, see Figure 2 The range hood in the present application further includes a fan assembly 200, which is disposed inside the range hood. The fan assembly 200 can generate a strong suction force to discharge the fumes generated during the cooking process to the outside.

[0050] In some embodiments, see Figure 2 The range hood in the present application includes a rectifying plate 103, which is disposed in the accommodating chamber 101 and connected to the fume collecting hood 100. The rectifying plate 103 is spaced apart from the air inlet 102 along a first direction, the first direction being perpendicular to the axial direction of the air inlet 102, and the rectifying plate 103 can move toward the direction close to the air inlet 102. Figure 8 In the accommodating cavity 101, the rectifying plate 103, the smoke collecting plate 1001, the back plate 1002 and the side wall of the smoke collecting hood 100 form an air inlet channel after the oil smoke enters the air suction port 102, further improving the gathering effect of the oil smoke and improving the suction capacity of the range hood.

[0051] Through the above arrangement, when the rectifying plate 103 moves closer to the air inlet 102, the opening of the air inlet passage becomes smaller, so that the flow rate of the oil smoke collected at the air inlet 102 is accelerated, thereby improving the oil smoke collection effect of the range hood.

[0052] On the one hand, when the oil fume concentration is low and the concentration will change in a small range, when the indoor oil fume concentration increases within a small range, the user does not need to adjust the working gear of the fan assembly 200. He only needs to move the rectifier plate 103 toward the air intake port 102 to improve the oil fume collection effect of the range hood while ensuring the comfort of the indoor environment.

[0053] On the other hand, when the fan assembly 200 is at the highest gear but still cannot meet the user's smoke exhaust needs, the smoke extraction capacity of the range hood can be further improved by moving the rectifier plate 103 toward the air intake port 102, thereby improving the user's experience.

[0054] In addition, the rectifying plate 103 guides the oil smoke from the air inlet 102, so that the oil smoke can smoothly enter the accommodating cavity 101. At the same time, through the guiding effect of the rectifying plate, the oil smoke can be evenly distributed when entering the air inlet channel, maintaining a uniform flow rate of the oil smoke.

[0055] It should be noted that the present application does not limit the shape of the rectifying plate 103 .

[0056] For example, the wall surface of the rectifying plate 103 is inclined close to the air inlet 102 , so that the oil smoke can flow into the accommodating cavity 101 more easily under the guidance of the inclined rectifying plate 103 , so that the range hood can more easily discharge the oil smoke to the outside.

[0057] For example, see Figure 3 The wall surface of the rectifying plate 103 is perpendicular to the plane where the air intake port 102 is located, that is, the end of the rectifying plate 103 away from the air intake port 102 is closer to the air intake port 102 than the end of the rectifying plate 103 close to the air intake port 102. In this way, the rectifying plate 103 can be more easily installed on the surface of the smoke collecting hood 100 of the range hood.

[0058] For example, see Figure 4 The rectifying plate 103 is an arc-shaped plate, and the surface of the rectifying plate 103 on one side close to the air inlet 102 is recessed in the direction away from the air inlet 102. The arc surface of the rectifying plate 103 is close to the air inlet 102. In this way, the rectifying plate 103 can be easily installed and can use the arc surface to guide the oil smoke.

[0059] In some embodiments, see Figure 2 The range hood in the present application further includes a driving member 104 , which is connected to the fume hood 100 .

[0060] Exemplarily, the driving member 104 is disposed in the accommodating cavity 101, further improving the overall aesthetics of the range hood.

[0061] Exemplarily, the driving member 104 is disposed outside the smoke collecting hood 100 , so that when the driving member 104 fails, the user can promptly repair the driving member 104 .

[0062] In some embodiments, see Figure 2 The range hood in the present application also includes a rocker arm 105, which is disposed in the accommodating chamber 101 and connected to a driving member 104. The driving member 104 is used to drive the rocker arm 105 to rotate so that the rocker arm 105 abuts against the rectifier plate 103 and pushes the rectifier plate 103 to move toward the direction close to the air intake port 102.

[0063] In this way, when the user needs to increase the oil fume flow rate at the air intake port 102, the driving member 104 can be used to drive the rocker arm 105 to rotate. During the rotation of the rocker arm 105, it can abut against the rectifier plate 103. When the rocker arm 105 continues to rotate, the rocker arm 105 can generate a thrust toward the air intake port 102 on the rectifier plate 103, thereby pushing the rectifier plate 103 to move in a direction close to the air intake port 102.

[0064] In some embodiments, see Figure 5 , Figure 5 The solid line in the middle shows the state where the rectifier plate 103 is in the first position. Figure 5 The middle dotted line shows the state when the rectifying plate 103 is in the second position. The rocker arm 105 in the present application can push the rectifying plate 103 to move from the first position to the second position.

[0065] It can be understood that the first position is the initial position of the rectifier plate 103. At this time, the rectifier plate 103 is far away from the air intake port 102, and the radial dimension of the air inlet channel formed by the rectifier plate 103 and the side wall of the accommodating cavity 101 on the rear side of the air intake port 102 (the side close to the accommodating cavity 101) is larger, and the wind speed passing through it is smaller.

[0066] Specifically, when the opening of the air inlet passage becomes smaller, according to the law of conservation of mass, the mass flow rate of the oil fume gas passing through the opening must remain constant (the gas mass flow rate refers to the amount of gas mass passing through a certain cross section per unit time). Therefore, when the opening of the air inlet passage becomes smaller, the oil fume gas must pass through the smaller opening of the air inlet 102 at a higher speed to keep the effective mass flow rate unchanged.

[0067] In addition, according to Bernoulli's principle, the sum of the kinetic energy, pressure energy and potential energy of the oil fume remains unchanged during the flow of the oil fume. When the opening of the air inlet channel becomes smaller, the kinetic energy of the oil fume gas increases when the oil fume gas passes through the air inlet channel with a smaller opening. According to the continuity equation, the flow velocity of the oil fume gas at the air inlet channel with a smaller opening increases, which will cause the pressure of the oil fume gas at the smaller opening to decrease. The combined effect of this kinetic energy increase and pressure reduction will cause the oil fume gas flow rate to accelerate.

[0068] Therefore, when the opening of the air inlet passage becomes smaller, the gas flow rate through the air inlet 102 will increase, which is caused by the combined effect of the law of conservation of mass and Bernoulli's principle.

[0069] In some embodiments, after the rectifier plate 103 moves a certain distance close to the air intake port 102, the rectifier plate 103 will block the air intake port 102 in the accommodating chamber 101. On the one hand, it will reduce the suction force generated by the fan assembly 200 at the air intake port 102, and on the other hand, it will affect the total amount of oil fume gas entering the accommodating chamber 101 from the air intake port 102. In order to avoid the influence of the rectifier plate 103 on the overall air intake effect of the range hood, the range hood in the present application also includes a limit member 107, which is connected to the smoke hood 100 and is located on one side of the rocker arm 105 in the first direction.

[0070] Specifically, when the rocker arm 105 rotates to the second position, the rocker arm 105 abuts against the limit piece 107, so that the rocker arm 105 cannot continue to push the rectifier plate 103 to move. As a result, the rectifier plate 103 can move within a certain range, and the limit piece 107 can ensure that the position of the rectifier plate 103 after movement will not block the air intake port 102, thereby further improving the reliability of the range hood.

[0071] In some embodiments, the driving member 104 in the present application may be a manual adjustment component. The user may determine whether the smoke flow rate at the smoke inlet needs to be adjusted. If the smoke flow rate at the target smoke inlet needs to be increased, the user may adjust it through the manual adjustment component.

[0072] In some embodiments, the manual adjustment component includes an adjustment knob and an adjustment arm. An adjustment hole is formed on the surface of the smoke hood 100. The adjustment arm passes through the adjustment hole and is connected to the rocker arm 105. The user can control the rocker arm 105 to rotate by rotating the adjustment arm, thereby driving the rectifier plate 103 to move.

[0073] In some embodiments, see Figure 6The driving member 104 in the present application can be a driving motor, which is connected to the smoke hood 100. The output shaft of the driving motor is connected to the rocker arm 105. The driving motor can control the rotation of the rocker arm 105 so that the rocker arm 105 pushes the rectifier plate 103 to rotate or slide in a direction close to the air intake port 102.

[0074] For example, Figure 6 The rocker arm 105 shown in the figure pushes the rectifying plate 103 to rotate in the direction close to the air inlet 102.

[0075] It should be noted that the translation of the rectifier plate 103 may be by rotating in a direction close to or away from the air inlet 102 or by sliding in a direction close to or away from the air inlet 102, and this application does not limit this.

[0076] In the following, some embodiments of the present disclosure are schematically described by taking the translation mode of the rectifying plate 103 being rotated in a direction close to or away from the air inlet 102 as an example.

[0077] In some embodiments, see Figure 7 The range hood in the present application includes a first rotating shaft 108 , and the thickness direction of the rectifying plate 103 is perpendicular to the axial direction of the first rotating shaft 108 , and the axial direction of the first rotating shaft 108 is consistent with the direction in which the air inlet 102 is away from the accommodating chamber 101 .

[0078] Exemplarily, the first rotating shaft 108 is fixedly connected to the smoke collecting hood 100 , and the rectifying plate 103 is rotatably connected to the first rotating shaft 108 , that is, one end of the rectifying plate 103 is sleeved on the first rotating shaft 108 , and the rotation axis of the rectifying plate 103 coincides with the rotation axis of the first rotating shaft 108 .

[0079] Exemplarily, the first rotating shaft 108 is rotatably connected to the smoke collecting hood 100 , one end of the rectifying plate 103 is fixedly connected to the first rotating shaft 108 , and the rotating axis of the rectifying plate 103 coincides with the rotating axis of the first rotating shaft 108 .

[0080] Therefore, when the rocker arm 105 pushes the rectifier plate 103 to rotate, the rectifier plate 103 can rotate around the rotation axis of the first rotating shaft 108, which can ensure the stability of the rectifier plate 103 during the rotation process on the one hand, and increase the flexibility of the rectifier plate 103 during the rotation process on the other hand.

[0081] In some embodiments, see Figure 6The range hood in the present application further includes a resilient member 106, one end of which is connected to the rectifier plate 103, and the other end of which is connected to the smoke hood 100 and one of the driving members 104. When the rocker arm 105 pushes the rectifier plate 103 toward the air inlet 102, the resilient member 106 undergoes elastic deformation, and the resilient member 106 generates an elastic force on the rectifier plate 103 in a direction away from the air inlet 102.

[0082] In this way, the rectifying plate 103 can automatically return to the first position under the elastic force of the rebound member 106, and the user does not need to manually return the rectifying plate 103 to its original position, which further improves the user's experience in using the range hood.

[0083] For example, the resilient member 106 may be a torsion spring sleeved on the first rotating shaft 108, or may be Figure 6 The spring shown in the figure is not limited to this application.

[0084] In some embodiments, see Figure 8 The smoke collecting hood 100 in the present application includes a smoke collecting plate 1001 and a back plate 1002 which are arranged opposite to each other along a second direction. The smoke collecting plate 1001 forms an air suction port 102 . The second direction is consistent with the thickness direction of the back plate 1002 .

[0085] The rectifier plate 103 is disposed between the smoke collecting plate 1001 and the back plate 1002, and the side wall surface of the rectifier plate 103 close to the smoke collecting plate 1001 along the second direction is parallel to the plane where the smoke collecting plate 1001 is located. The side wall surface of the rectifier plate 103 close to the back plate 1002 along the second direction is parallel to the plane where the back plate 1002 is located.

[0086] The above arrangement can prevent the rectifying plate 103 from colliding with the smoke collecting plate 1001 and the back plate 1002 during the rotation process, thereby further improving the stability and reliability of the rectifying plate 103 during the rotation process.

[0087] In some embodiments, see Figure 2 Combined with Figure 6 The smoke hood 100 in the present application forms two air inlets 102, and the rocker arm 105 includes a connecting portion 1051 and two push rods 1052, the connecting portion 1051 is connected to the driving member 104, one end of the two push rods 1052 is connected to the connecting portion 1051, and the other ends of the two push rods 1052 are arranged at intervals.

[0088] See also Fig. 9 The rectifying plate 103 is partially located between the two push rods 1052 , and when the driving member 104 drives the connecting portion 1051 to rotate, one of the two push rods 1052 can push the rectifying plate 103 to rotate toward one of the two air inlets 102 .

[0089] Furthermore, at this time, the limit members 107 are located on both sides of the rocker arm 105 in the first direction to limit the rotation angle of the rocker arm 105 when it approaches the two air inlets 102 respectively, thereby further improving the working reliability of the rectifier plate 103.

[0090] During the actual operation of the range hood, in most cases, users will not use two burners for cooking at the same time. Generally, users will only use one burner for cooking, and the other burner will not work or will be used for steaming. That is, the air intake port 102 for cooking or with a higher oil fume concentration is the target air intake port 102 where the oil fume flow rate needs to be increased.

[0091] Through the above arrangement, during the operation of the range hood, the driving member 104 drives the connecting portion 1051 of the rocker arm 105 and the two push rods 1052 to rotate. The push rods 1052 will abut against the rectifier plate 103 during the rotation, thereby driving the rectifier plate 103 to rotate in a direction close to the air intake port 102.

[0092] In this way, the rectifying plate 103 can rotate in the direction close to the air inlet 102 where the oil fume flow rate needs to be increased, so as to increase the oil fume concentration at the target air inlet 102. In this way, even if the two air inlets 102 in the present application use the same fan assembly 200, the oil fume flow rates at the air inlet 102 can be different, further improving the user experience.

[0093] It should be noted that the present application does not limit the number of push rods 1052 , and the following exemplary description is given with the number of push rods 1052 being two.

[0094] During the rotation of the rocker arm 105, one of the two push rods 1052 closer to the rectifier plate 103 first abuts against the rectifier plate 103. If the rocker arm 105 continues to rotate, the push rod 1052 abutting against the rectifier plate 103 will be separated from the rectifier plate 103, and the other push rod 1052 will abut against the rectifier plate 103 again.

[0095] It can be understood that in the process of the push rod 1052 abutting against the rectifier plate 103, as the rotation angle of the rocker arm 105 increases, the rotation angle of the rectifier plate 103 gradually increases. Furthermore, the adjustable range of the oil fume wind speed at the air intake port 102 is further refined, so that the user can further flexibly control the oil fume flow rate at the air intake port 102.

[0096] Specifically, see Figure 6The connecting portion 1051 of the rocker arm 105 is disposed between the two push rods 1052 . During the rotation of the rocker arm 105 , one of the two push rods 1052 abuts against the rectifier plate 103 , so that the rectifier plate 103 rotates between the two air inlets 102 .

[0097] Exemplarily, the rectifying plate 103 in the present application can also be pushed to the third position by the rocker arm 105. It can be understood that the rectifying plate 103 can be rotated from the first position to the second position and the third position in sequence in the direction close to the air inlet 102. Specifically, Fig.10 The rectifying plate 103 is shown in a first position. Fig.11 The rectifying plate 103 is shown in the second position. Fig.12 The rectifying plate 103 is shown in the third position.

[0098] In some embodiments, see Figure 2 The smoke hood 100 in the present application forms two air inlets 102. The range hood includes two rectifier plates 103, which are arranged between the two air inlets 102, and the two rectifier plates 103 are arranged at intervals, one rectifier plate 103 corresponds to one air inlet 102, and a rocker arm 105 is arranged between the two rectifier plates 103, and when the driving member 104 drives the rocker arm 105 to rotate, the rocker arm 105 can push one of the two rectifier plates 103 close to the corresponding air inlet 102, that is, the rocker arm 105 can push the rectifier plate 103 corresponding to the target air inlet 102 to rotate.

[0099] In this way, each rectifier plate 103 can be arranged close to its corresponding air inlet 102, and the oil smoke flow rate at the corresponding air inlet 102 can be increased without rotating at a large angle. Figure 6 The connecting portion 1051 of the rocker arm 105 is disposed between the two push rods 1052 . When the rocker arm 105 rotates, one of the two push rods 1052 abuts against one of the two rectifier plates 103 , so that the rectifier plate 103 can rotate toward the direction close to the air inlet 102 .

[0100] Furthermore, the other ends of the two push rods 1052 are arranged at intervals, which can enable each push rod 1052 to be closer to the corresponding rectifier plate 103 , thereby facilitating the push rod 1052 to push the corresponding rectifier plate 103 .

[0101] In some embodiments, see Fig.13 The smoke collecting hood 100 in the present application forms two air suction ports 102 . The range hood includes two rectifying plates 103 , which are arranged between the two air suction ports 102 , and the two rectifying plates 103 are arranged at intervals, and one rectifying plate 103 corresponds to one air suction port 102 .

[0102] The range hood includes two driving members 104 and two rocker arms 105 , wherein one driving member 104 is connected to one rocker arm 105 , and the two rocker arms 105 are disposed between two rectifier plates 103 , and one rocker arm 105 corresponds to one rectifier plate 103 . During the rotation of the rocker arm 105 , the rectifier plate 103 can be pushed close to the corresponding air inlet 102 .

[0103] Through the above-mentioned setting, in the present application, each rectifier plate 103 can be driven simultaneously, so that the oil fume flow rate at each air intake port 102 can be adjusted in a small range, further improving the user experience.

[0104] For example, see Fig.14 , Fig.14 The figure shows a situation where a driving member 104 independently drives a rocker arm 105 to rotate.

[0105] In addition, the user can also drive the two rocker arms 105 to rotate at the same time through the two driving members 104. By controlling the two driving members 104 to drive the two rocker arms 105 to rotate at the same time, the two rectifier plates 103 can be driven to rotate close to the corresponding air inlet 102.

[0106] In some embodiments, the rocker arm 105 in the present application can be a cam or a Fig.14 The straight rod shown in Figure 6 The connecting rod with branches shown in the figure, the rocker arm 105 can push the rectifier plate 103 to move while rotating itself, and the present application does not limit the shape of the rocker arm 105.

[0107] Although the present application is described herein in conjunction with various embodiments, in the process of implementing the present application for which protection is sought, those skilled in the art may understand and implement other variations of the disclosed embodiments by viewing the drawings, the disclosure, and the appended claims. In the claims, the word "comprise" does not exclude other components or steps, and "one" or "an" does not exclude multiple components. A single processor or other unit may implement several functions listed in a claim. Certain measures are recorded in mutually different dependent claims, but this does not mean that these measures cannot be combined to produce good results.

[0108] Although the present application has been described in conjunction with specific features and embodiments thereof, it is obvious that various modifications and combinations may be made thereto without departing from the spirit and scope of the present application. Accordingly, this specification and the drawings are merely exemplary illustrations of the present application as defined by the appended claims, and are deemed to have covered any and all modifications, variations, combinations or equivalents within the scope of the present application. Obviously, those skilled in the art may make various modifications and variations to the present application without departing from the spirit and scope of the present application. Thus, if these modifications and variations of the present application fall within the scope of the claims of the present application and their equivalents, the present application is also intended to include these modifications and variations.

[0109] The above are only specific implementations of the present invention, but the protection scope of the present invention is not limited thereto. Any technician familiar with the technical field can easily think of changes or substitutions within the technical scope disclosed by the present invention, which should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention should be based on the protection scope of the claims.

Claims

1. A range hood, characterized in that: include: A fume collecting hood forms a receiving cavity and an air suction port connecting the receiving cavity and the outside of the range hood; a rectifying plate, arranged in the accommodating cavity and connected to the smoke collecting hood, the rectifying plate being spaced apart from the air suction port along a first direction, the first direction being perpendicular to the axial direction of the air suction port, and the rectifying plate being able to move toward a direction close to the air suction port; A driving member connected to the smoke collecting hood; A rocker arm is disposed in the accommodating cavity and connected to the driving member, wherein the driving member is used to drive the rocker arm to rotate so that the rocker arm abuts against the rectifier plate and pushes the rectifier plate to move toward the air inlet.

2. The range hood according to claim 1, characterized in that: Also includes: A resilient member, one end of which is connected to the rectifier plate, and the other end of which is connected to the smoke hood and one of the driving members. When the rocker arm pushes the rectifier plate toward the air intake port, the resilient member undergoes elastic deformation, and the resilient member generates an elastic force on the rectifier plate in a direction away from the air intake port.

3. The range hood according to claim 1, characterized in that: The rocker arm is capable of pushing the rectifying plate to move from the first position to the second position; The range hood further comprises a limiting member, which is connected to the fume collecting hood and is located on one side of the rocker arm in the first direction, wherein when the rectifying plate is located at the second position, the rocker arm abuts against the limiting member.

4. The range hood according to any one of claims 1 to 3, characterized in that: The range hood comprises a first rotating shaft, and the thickness direction of the rectifying plate is perpendicular to the axial direction of the first rotating shaft, and the axial direction of the first rotating shaft is consistent with the direction in which the air suction port is away from the accommodating chamber; The first rotating shaft is fixedly connected to the smoke collecting hood, the rectifying plate is rotatably connected to the first rotating shaft, and the rotating axis of the rectifying plate coincides with the rotating axis of the first rotating shaft; or, The first rotating shaft is rotatably connected to the smoke collecting hood, the rotation axis of the first rotating shaft coincides with the axis of the first rotating shaft, and the rectifying plate is fixedly connected to the first rotating shaft.

5. The range hood according to any one of claims 1 to 3, characterized in that: The smoke collecting hood comprises a smoke collecting plate and a back plate which are arranged opposite to each other along a second direction, the smoke collecting plate forms the air suction port, and the second direction is consistent with the thickness direction of the back plate; The side wall surface of the rectifying plate close to the smoke collecting plate along the second direction is parallel to the plane where the smoke collecting plate is located; The side wall surface of the rectifying plate close to the back plate along the second direction is parallel to the plane where the back plate is located.

6. The range hood according to any one of claims 1 to 3, characterized in that: The driving member comprises a driving motor, and an output shaft of the driving motor is connected to the rocker arm.

7. The range hood according to any one of claims 1 to 3, characterized in that: The smoke collecting hood forms two air suction ports, the rocker arm comprises a connecting portion and two push rods, the connecting portion is connected to the driving member, one end of the two push rods is connected to the connecting portion, and the other ends of the two push rods are arranged at intervals; The rectifying plate portion is located between the two push rods, and when the driving member drives the connecting portion to rotate, one of the two push rods can push the rectifying plate to rotate toward one of the two air inlets.

8. The range hood according to any one of claims 1 to 3, characterized in that: The smoke collecting hood forms two air suction ports; The range hood comprises two rectifying plates, which are arranged between the two air inlets and spaced apart, and one rectifying plate corresponds to one air inlet; The rocker arm is arranged between the two rectifier plates, and when the driving member drives the rocker arm to rotate, the rocker arm can push one of the two rectifier plates to approach the corresponding air inlet.

9. The range hood according to any one of claims 1 to 3, characterized in that: The smoke collecting hood forms two air suction ports; The range hood comprises two rectifying plates, which are arranged between the two air inlets and spaced apart, and one rectifying plate corresponds to one air inlet; The range hood comprises two driving members and two rocker arms, and one driving member is connected to one rocker arm; The two rocker arms are arranged between the two rectifier plates, and one rocker arm corresponds to one rectifier plate. During the rotation of the rocker arm, the rectifier plate can be pushed to approach the corresponding air inlet.

10. A range hood, characterized in that: include: A fume collecting hood forms a receiving cavity and an air suction port connecting the receiving cavity and the outside of the range hood; a rectifying plate, arranged in the accommodating cavity and connected to the smoke collecting hood, the rectifying plate being spaced apart from the air suction port along a first direction, the first direction being perpendicular to the axial direction of the air suction port, and the rectifying plate being able to move toward a direction close to the air suction port; A driving member, disposed in the accommodating chamber and connected to the smoke collecting hood; A rocker arm is disposed in the accommodating cavity and connected to the driving member, wherein the driving member is used to drive the rocker arm to rotate so that the rocker arm abuts against the rectifier plate and pushes the rectifier plate to move toward the air inlet.

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