Range hood and kitchen appliance

Abstract

The invention provides a range hood and a kitchen appliance, and relates to the technical field of kitchen appliances. The range hood comprises a case, a fan assembly, a check valve and a driving mechanism, the fan assembly is located in the case; the fan assembly comprises a shell and a fan, the shell is provided with a smoke suction channel, and the smoke suction channel communicates with the smoke collection cavity; the fan is positioned in the smoke suction channel; the check valve comprises a valve main body and a valve plate, the valve main body is located in the smoke collection cavity and located at the smoke outlet of the smoke suction channel, the inlet end of the valve main body is communicated with the shell, and the outlet end of the valve main body extends to the outer side of the case; the valve plate is movably arranged in the smoke exhaust channel. And the driving mechanism is connected with the check valve and is combined with the working mode of the fan to drive the valve plate to rotate so as to open and / or close the smoke exhaust channel. Through the arrangement, integral assembly of the range hood and the kitchen appliance is realized, the mounting difficulty of the check valve is reduced, and when the fan is shut down, the smoke exhaust channel is ensured to be closed, so that backflow of oil smoke and peculiar smell is avoided, and the use experience of a user is improved.

Description

Technical Field

[0001] This application relates to the technical field of kitchen appliances, in particular to a range hood and a kitchen appliance. Background Art

[0002] As a kitchen appliance, a range hood sucks out the cooking fumes in the kitchen during cooking to purify the air environment in the kitchen.

[0003] In the related art, the exhaust pipe of the range hood is arranged on the wall of the kitchen so that the exhaust port of the exhaust pipe communicates with the flue, and a check valve is arranged at the connection between the wall and the exhaust pipe, and the check valve is fixedly connected to the wall.

[0004] However, the installation of the check valve and the wall is difficult, resulting in poor installation efficiency of the range hood. In addition, after long-term use of the check valve, the check valve is prone to closing blockage, resulting in peculiar smell in the kitchen. Summary of the Invention

[0005] The range hood and the kitchen appliance provided by this application can at least solve the problems of the installation difficulty of the check valve and the peculiar smell in the kitchen caused by the closing blockage of the check valve.

[0006] To achieve the above object, this application adopts the following technical solutions:

[0007] This application provides a range hood, including:

[0008] A chassis, the chassis having a smoke collecting cavity;

[0009] A fan assembly, the fan assembly being located in the smoke collecting cavity; the fan assembly includes a housing and a fan, the housing having a smoke suction channel, the housing having a smoke suction port and a smoke exhaust port, the smoke suction port communicating the smoke suction channel and the smoke collecting cavity, the smoke exhaust port communicating with the smoke suction channel; the fan is located in the smoke suction channel;

[0010] A check valve, the check valve including a valve body and a valve flap, the valve body being located in the smoke collecting cavity and on the side where the smoke exhaust port is located, the valve body having a smoke exhaust channel, the inlet end of the valve body communicating with the housing through the smoke exhaust port, the outlet end of the valve body extending to the outside of the chassis; the valve flap is movably arranged in the smoke exhaust channel;

[0011] A driving mechanism, the driving mechanism being arranged on the check valve; the driving mechanism is used for, when the fan is working, driving the valve flap to open the smoke exhaust channel and adjusting the opening degree of the smoke exhaust channel, and / or, when the fan stops working, driving the valve flap to close the smoke exhaust channel.

[0012] In some embodiments, the range hood further includes a duct extension assembly, at least a part of the duct extension assembly is disposed in the cabinet and on the side where the outlet end is located, and the duct extension assembly is in communication with the outlet end.

[0013] In some embodiments, the duct extension assembly includes a first connecting member, the first connecting member is disposed on the outer wall of the cabinet, and the end of the first connecting member is sealingly connected to the outlet end.

[0014] In some embodiments, the duct extension assembly further includes a connecting extension pipe, the connecting extension pipe is disposed at the end of the first connecting member facing away from the cabinet; the end of the connecting extension pipe is sealingly connected to the end of the first connecting member.

[0015] In some embodiments, the duct extension assembly further includes a second connecting member, the second connecting member is disposed at the end of the connecting extension pipe facing away from the first connecting member; the end of the second connecting member is sealingly connected to the end of the connecting extension pipe.

[0016] In some embodiments, the driving mechanism includes a motor, the motor is disposed outside the valve body, and the motor is connected to the valve plate;

[0017] When the blower operates, the motor drives the valve plate to rotate to open the smoke exhaust passage and adjust the opening degree of the smoke exhaust passage;

[0018] When the blower stops operating, the motor drives the valve plate to rotate to close the smoke exhaust passage.

[0019] In some embodiments, the range hood further includes a controller, the controller is electrically connected to the motor and the blower respectively;

[0020] The controller is configured to obtain the operating mode of the blower and control the motor to start according to the operating mode to drive the valve plate to rotate.

[0021] In some embodiments, the check valve further includes a first stop member, the first stop member is disposed on the inner wall of the valve body, and when the smoke exhaust passage is closed, along the thickness direction of the valve plate, the first stop member stops on one side of the valve plate;

[0022] And / or, the check valve further includes a second stop member, the second stop member is disposed on the inner wall of the valve body, and when the smoke exhaust passage is open, along the thickness direction of the valve plate, the second stop member stops on one side of the valve plate.

[0023] In some embodiments, a seal is provided on the valve plate; when the smoke exhaust passage is closed, the seal is in sealing contact with the inner wall of the valve body.

[0024] In a second aspect, the present application provides a kitchen appliance, including the range hood provided in the first aspect.

[0025] The range hood and the kitchen appliance provided by the present application form a smoke exhaust path through the sequential connection of the chassis, the fan assembly, and the check valve, so as to exhaust the smoke when the fan assembly is working. Among them, the check valve is arranged inside the chassis, realizing the overall assembly of the range hood and the kitchen appliance, so as to adapt to various different user installation environments, reducing the installation difficulty of the check valve, facilitating the installation of the range hood and the kitchen appliance in the kitchen, and improving the installation efficiency of the range hood and the kitchen appliance. Furthermore, after the fan stops working, the valve plate is driven by the driving mechanism to close the smoke exhaust passage, which can avoid the situation of blocked closing rotation of the valve plate, thus ensuring the stable closing of the smoke exhaust passage, preventing the smoke from flowing back through the smoke path of the range hood and the kitchen appliance, and avoiding the situation of peculiar smell in the kitchen, thereby improving the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are some embodiments of the present application. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts.

[0027] Figure 1 Schematic diagram of a kitchen appliance provided by an embodiment of the present application;

[0028] Figure 2 Schematic diagram of a range hood provided by an embodiment of the present application;

[0029] Figure 3 Schematic diagram of a first perspective of the check valve in the range hood provided by an embodiment of the present application;

[0030] Figure 4 Schematic diagram of a second perspective of the check valve in the range hood provided by an embodiment of the present application;

[0031] Figure 5 Schematic diagram of a first perspective connection of the check valve and the air duct extension assembly in the range hood provided by an embodiment of the present application;

[0032] Figure 6 Schematic diagram of a first connection method between the range hood provided by an embodiment of the present application and a wall;

[0033] Figure 7Explosion diagram of the check valve and the air duct extension assembly in the range hood provided by the embodiment of the present application;

[0034] Figure 8 For Figure 7 Partial enlarged view of the structure of the dashed box part in;

[0035] Figure 9 Schematic diagram of the second connection method between the range hood and the wall provided by the embodiment of the present application;

[0036] Figure 10 Schematic diagram of the third connection method between the range hood and the wall provided by the embodiment of the present application;

[0037] Figure 11 Schematic connection diagram of the second perspective of the check valve and the air duct extension assembly in the range hood provided by the embodiment of the present application;

[0038] Figure 12 For Figure 11 Cross-sectional view of;

[0039] Figure 13 Cross-section of the check valve in the range hood provided by the embodiment of the present application Figure 1 ;

[0040] Figure 14 For Figure 13 Partial enlarged view of the structure of the elliptical dashed part in;

[0041] Figure 15 Cross-section of the check valve in the range hood provided by the embodiment of the present application Figure 2 ;

[0042] Figure 16 For Figure 14 Partial enlarged view of the structure of the elliptical dashed part in.

[0043] Explanation of reference numerals:

[0044] 100 - Range hood;

[0045] 110 - Chassis; 111 - Smoke collecting cavity;

[0046] 120 - Fan assembly;

[0047] 121 - Housing; 1211 - Smoking channel;

[0048] 122 - Fan;

[0049] 130 - Check valve;

[0050] 131 - Valve body; 1311 - Exhaust channel; 1312 - Inlet end; 1313 - Outlet end; 1314 - Annular groove;

[0051] 132 - Valve disc; 1321 - Valve disc body; 1322 - Rotating shaft;

[0052] 133 - Motor; 134 - First stop member; 135 - Second stop member; 136 - Seal;

[0053] 140 - Air duct extension assembly;

[0054] 141 - First connecting member; 1411 - Annular boss;

[0055] 142 - Connecting extension pipe; 143 - Second connecting member;

[0056] 150 - First preset position; 160 - Second preset position;

[0057] 200 - Integrated range hood;

[0058] 210 - Host computer;

[0059] 211 - Head component; 2111 - Air inlet channel;

[0060] 212 - Stove component;

[0061] 220 - Slave computer; 221 - Cooking box component;

[0062] 300 - Wall. Detailed implementation manners

[0063] To make the objectives, technical solutions, and advantages of the embodiments of the present application clearer, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present application. Apparently, the described embodiments are some but not all of the embodiments of the present application. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present application without creative efforts shall fall within the protection scope of the present application. Without conflict, the following embodiments and the features in the embodiments may be combined with each other.

[0064] Refer to Figure 1 , the embodiments of the present application provide a kitchen appliance, including a range hood 100.

[0065] Exemplarily, the kitchen appliance may be an integrated range hood 200, an integrated range hood 100, a central range hood, a range hood with stove linkage device, etc., and the embodiments of the present application do not limit this. It should be noted that the embodiments of the present application take the integrated range hood 200 as an example to illustrate the technical solutions provided by the present application.

[0066] The integrated stove 200 includes an upper computer 210 and a lower computer 220. Along the height direction of the integrated stove 200, the upper computer 210 is arranged at the top of the lower computer 220. Among them, the upper computer 210 includes a machine head assembly 211 and a cooking appliance assembly 212, and the cooking appliance assembly 212 and the machine head assembly 211 are arranged along the width direction of the integrated stove 200. The machine head assembly 211 has an air inlet passage 2111.

[0067] The lower computer 220 includes an oil fume machine 100 and a cooking box assembly 221, and the cooking box assembly 221 and the oil fume machine 100 are arranged along the width direction of the integrated stove 200. The smoke collecting cavity 111 of the oil fume machine 100 is communicated with the air inlet passage 2111, so that when the cooking appliance assembly 212 performs cooking operations, the oil fume outside the machine head assembly 211 is sucked into the smoke collecting cavity 111 through the air inlet passage 2111 and discharged into the flue of the kitchen under the action of the oil fume machine 100.

[0068] It should be noted that the cooking box assembly 221 in the embodiments of the present application can be used to cook food in different modes such as steaming, baking, steam baking, microwave heating, etc., and the present application does not limit this.

[0069] Combined Figure 1 and Figure 2 , in some embodiments, the oil fume machine 100 includes a machine case 110 and a fan assembly 120. The machine case 110 has a smoke collecting cavity 111. The fan assembly 120 is located in the smoke collecting cavity 111. The fan assembly 120 includes a housing 121 and a fan 122. The housing 121 has a smoke suction passage 1211. The housing 121 has a smoke suction port and a smoke exhaust port. The smoke suction port communicates the smoke suction passage 1211 and the smoke collecting cavity 111, and the smoke exhaust port is communicated with the smoke suction passage 1211; the fan 122 is located in the smoke suction passage 1211.

[0070] In this way, the air inlet passage 2111 of the machine head assembly 211, the smoke collecting cavity 111 of the machine case 110 and the smoke suction passage 1211 of the fan assembly 120 are sequentially communicated to form an oil fume flow path. After the fan 122 is started, the oil fume outside the machine head assembly 211 can be sucked to achieve the purpose of purifying the kitchen air, thereby improving the user experience and reducing the harm of oil fume to the user's body.

[0071] In some embodiments, the smoke exhaust port of the housing 121 extends to the outside of the machine case 110 and is communicated with the flue in the wall body 300. However, after the fan 122 stops working, there is a situation where the oil fume in the flue flows back along the oil fume flow path to the machine head assembly 211, resulting in peculiar smell in the user's kitchen.

[0072] To solve such problems, in some embodiments, the range hood 100 further includes a check valve 130. The check valve 130 includes a valve body 131 and a valve flap 132. The valve body 131 has an exhaust passage 1311. The inlet end 1312 of the valve body 131 communicates with the exhaust port of the housing 121. The outlet end 1313 of the valve body 131 is used to connect to the wall 300 to communicate the exhaust passage 1311 with the flue. The valve flap 132 is movably disposed in the exhaust passage 1311 and is used to open the exhaust passage 1311 and adjust the opening degree of the exhaust passage 1311 when the fan 122 is operating.

[0073] In this way, the check valve 130 only opens when the fan assembly 120 is operating, making the oil fume flow path unobstructed and facilitating the discharge of oil fume. When the fan assembly 120 stops operating, the check valve 130 disconnects the oil fume flow path from the flue, thus blocking the backflow of oil fume in the flue. In this way, the probability of the occurrence of peculiar smell in the kitchen can be reduced by the setting of the check valve 130, further enhancing the user experience.

[0074] In some embodiments, the check valve 130 is disposed on the wall 300, and the exhaust port of the housing 121 is connected to the inlet end 1312 of the valve body 131 through an exhaust pipe. In this way, during the installation of the range hood 100 and the integrated stove 200, after drilling a hole in the wall 300 with a water drill, the check valve 130 is placed in the hole, and the valve body 131 is fixed to the wall 300. At the same time, the connection between the valve body 131 and the wall 300 needs to be sealed to prevent the backflow of oil fume in the flue from the connection between the valve body 131 and the wall 300.

[0075] However, the installation steps of the check valve 130 on the wall 300 are relatively complex and highly dependent on the installation skills of the installer, which increases the installation difficulty of the range hood 100 and the integrated stove 200 and reduces the installation efficiency of the range hood 100 and the integrated stove 200.

[0076] Therefore, referring to Figure 1 、 Figure 2 、 Figure 3 and Figure 4 In the embodiments of the present application, the check valve 130 is disposed in the smoke collecting cavity 111 of the chassis 110. Exemplarily, the valve body 131 is located in the smoke collecting cavity 111 and on the side where the exhaust port of the housing 121 is located. The inlet end 1312 of the valve body 131 is connected to the housing 121, and the smoke collecting cavity 111 of the valve body 131 is communicated through the exhaust port on the housing 121. The outlet end 1313 of the valve body 131 extends to the outside of the chassis 110. The valve flap 132 is movably disposed in the exhaust passage 1311.

[0077] Thus, by assembling the check valve 130 inside the chassis 110 in the embodiments of the present application, the overall assembly of the range hood 100 and the integrated stove 200 is achieved, thereby reducing the installation difficulty of the check valve 130 and facilitating the installation of the range hood 100 and the integrated stove 200 in the kitchen, and improving the installation efficiency of the range hood 100 and the integrated stove 200. Furthermore, the check valve 130 is arranged inside the chassis 110, which can adapt to various different user installation environments. During the installation process, only a hole needs to be opened on the wall 300 so that the outlet end 1313 of the check valve 130 is connected to the wall 300 and the smoke exhaust channel 1311 and the flue are communicated.

[0078] In some embodiments, the valve plate 132 is movably arranged in the smoke exhaust channel 1311. The valve plate 132 can be actuated by the power of the air flow induced by the fan 122 to open the smoke exhaust channel 1311. When the fan 122 stops, the valve plate 132 can return to its initial position through the elastic structure to close the smoke exhaust channel 1311.

[0079] However, with the long-term use of the range hood 100 and the integrated stove 200, problems such as the accumulation of oil stains on the valve plate 132 and the decrease in the elastic force of the elastic structure will occur, which will cause the closing of the valve plate 132 to be blocked, resulting in the problem that the smoke exhaust channel 1311 cannot be completely closed. In this way, the oil fume and peculiar smell in the flue flow back along the oil fume flow path to the user's kitchen, causing peculiar smell in the user's kitchen and deteriorating the user's experience.

[0080] To solve such problems, the range hood 100 in the embodiments of the present application further includes a driving mechanism. The driving mechanism is arranged on the check valve 130 and is used to drive the valve plate 132 to open the smoke exhaust channel 1311 and adjust the opening degree of the smoke exhaust channel 1311 when the fan 122 is working, and / or drive the valve plate 132 to close the smoke exhaust channel 1311 when the fan 122 stops.

[0081] It is not difficult to understand that when the fan 122 is working, the driving mechanism drives the valve plate 132 to rotate and open the smoke exhaust channel 1311 and adjust the opening degree of the smoke exhaust channel 1311 to smoothly discharge the oil fume into the flue and improve the smoke exhaust efficiency. Furthermore, when the fan 122 stops, the driving mechanism drives the valve plate 132 to close the smoke exhaust channel 1311, thereby avoiding the situation of blocked closing rotation of the valve plate 132 and ensuring the stable closing of the smoke exhaust channel 1311, so that the oil fume cannot flow back through the oil fume path of the range hood 100 and the integrated stove 200, avoiding the situation of peculiar smell in the kitchen, and thus improving the user's experience.

[0082] See Figure 2, in some embodiments, the range hood 100 further includes a duct extension assembly 140. At least a part of the duct extension assembly 140 is disposed in the cabinet 110 and on the side where the outlet end 1313 is located. The duct extension assembly 140 is in communication with the outlet end 1313. In this way, the duct extension assembly 140 forms an external extension section of the smoke exhaust passage 1311 outside the cabinet 110, facilitating the connection between the range hood 100, the integrated stove 200, and the wall 300, helping to improve the adaptability of the installation environment of the range hood 100 and the integrated stove 200, enabling the range hood 100 and the integrated stove 200 to adapt to various different installation environments, and thus improving the installation efficiency of the range hood 100 and the integrated stove 200.

[0083] Exemplarily, the duct extension assembly 140 is a tubular structural member, which may include: pipe joints, pipe fittings, etc. The embodiments of the present application do not make requirements in this regard.

[0084] See Figure 2 、 Figure 5 and Figure 6 , in some embodiments, the duct extension assembly 140 includes a first connector 141. The first connector 141 is disposed on the outer wall of the cabinet 110, and the end of the first connector 141 is sealingly connected to the outlet end 1313. In this way, the first connector 141 is disposed outside the cabinet 110. The first connector 141 has a first communication cavity. The end of the first connector 141 is connected to the outlet end 1313, enabling the smoke exhaust passage 1311 to communicate with the first communication cavity. Outside the cabinet 110, the arrangement of the first connector 141 can extend the smoke exhaust passage 1311 and play a compensating role in the connection between the range hood 100, the integrated stove 200, and the wall 300, so that the range hood 100 and the integrated stove 200 can adapt to different installation environments.

[0085] Exemplarily, the end of the first connector 141 facing away from the check valve 130 can be connected to the wall 300 to discharge the fumes into the flue.

[0086] See Figure 7 and Figure 8, in some embodiments, an annular groove 1314 is provided at the end of the valve body 131 facing the first connector 141, and an annular boss 1411 is provided at the end of the first connector 141 facing the valve body 131. The shapes of the annular boss 1411 and the annular groove 1314 match each other. When the ends of the first connector 141 and the valve body 131 are connected, the annular boss 1411 is inserted into the annular groove 1314, and the wall surfaces of the annular boss 1411 and the annular groove 1314 that face each other are in contact, realizing the sealed connection between the end of the first connector 141 and the end of the valve body 131, thereby preventing the leakage of oil fume at the connection between the first connector 141 and the valve body 131, and also avoiding the reflux of oil fume and peculiar smell in the flue from the connection between the first connector 141 and the valve body 131, reducing the probability of the occurrence of peculiar smell generated by the range hood 100 and the integrated stove 200, and enhancing the user experience.

[0087] See Figure 2 , Figure 5 , Figure 9 , in some embodiments, the air duct extension assembly 140 further includes a connecting extension pipe 142, and the connecting extension pipe 142 is provided at the end of the first connector 141 facing away from the chassis 110; the end of the connecting extension pipe 142 and the end of the first connector 141 are sealedly connected. In this way, outside the chassis 110, the smoke exhaust passage 1311 can be extended through the mutual cooperation of the first connector 141 and the connecting extension pipe 142, and a compensation effect is formed for the connection between the range hood 100 and the integrated stove 200 and the wall 300, so that the range hood 100 and the integrated stove 200 are adapted to different installation environments.

[0088] It should be noted that the connecting extension pipe 142 in the embodiments of the present application includes a plastic pipe, an aluminum foil pipe, etc., and the embodiments of the present application do not make requirements in this regard. Among them, the end of the connecting extension pipe 142 facing away from the first connector 141 can extend into the hole of the wall 300 and communicate with the flue. Furthermore, the end of the connecting extension pipe 142 and the end of the first connector 141 can be sealedly connected in the form of surface sealing such as bonding.

[0089] During the installation of the range hood 100 and the integrated stove 200, the length of the connecting extension pipe 142 can be adjusted by the telescopic transformation of the folds on the connecting extension pipe 142, or the length adjustment of the connecting extension pipe 142 can be achieved by cutting the connecting extension pipe 142, so that the range hood 100 and the integrated stove 200 can adapt to the installation environment with a large installation distance from the wall 300, and the installation efficiency of the range hood 100 and the integrated stove 200 is improved.

[0090] See Figure 2 , Figure 5 and Figure 10, in some embodiments, the air duct extension assembly 140 further includes a second connecting member 143 disposed at an end of the connecting extension pipe 142 facing away from the first connecting member 141; the end of the second connecting member 143 is sealingly connected to the end of the connecting extension pipe 142. Thus, outside the chassis 110, by providing the second connecting member 143, the smoke exhaust passage 1311 is further extended, and a further adjustment and compensation function for the installation distance between the range hood 100 and the integrated cooking stove 200 and the wall 300 is formed, so that the range hood 100 and the integrated cooking stove 200 can adapt to the situation of having a larger installation distance from the wall 300, thereby facilitating the installation of the range hood 100 and the integrated cooking stove 200 and improving the installation efficiency of the range hood 100 and the integrated cooking stove 200.

[0091] In some embodiments, the valve plate 132 is movably disposed in the smoke exhaust passage 1311 of the valve body 131. Exemplarily, the valve plate 132 can rotate in the smoke exhaust passage to open or close the smoke exhaust passage 1311. For example: when the fan 122 is started, the air flow generated by the fan 122 drives the oil fume to flow, and the fluid acting forces of the air flow and the oil fume act on the valve plate 132, causing the valve plate 132 to rotate in the smoke exhaust passage 1311 and open the smoke exhaust passage 1311. When the fan 122 stops working and there is no air flow in the smoke exhaust passage 1311, the valve plate 132 returns to its initial position and closes the smoke exhaust passage 1311.

[0092] However, with the long-term use of the check valve 130, problems such as rotational jamming and incomplete closing of the valve plate 132 of the check valve 130 will occur, resulting in the backflow of oil fume in the flue, so that there is an odor in the user's kitchen and the user's experience becomes worse.

[0093] To solve such problems, in the embodiments of the present application, the driving mechanism includes a motor 133 disposed outside the valve body 131, and the motor 133 is connected to the valve plate 132; when the fan 122 is started, the motor 133 drives the valve plate 132 to rotate to open the smoke exhaust passage 1311 and adjust the opening degree of the smoke exhaust passage 1311; when the fan 122 stops, the motor 133 drives the valve plate 132 to rotate to close the smoke exhaust passage 1311. Thus, the rotation of the valve plate 132 in the smoke exhaust passage 1311 is driven by the motor 133 to achieve precise control of the rotation of the valve plate 132, ensure that the rotation of the valve plate 132 is in place, improve the smoke exhaust efficiency during the operation of the fan 122, and also ensure that the smoke exhaust passage 1311 can be completely closed through the mutual cooperation of the motor 133 and the valve plate 132 when the fan 122 stops, thereby preventing the backflow of oil fume and odor and improving the user experience.

[0094] See Figure 2 , Figure 3 , Figure 4, Exemplarily, the valve plate 132 includes a valve plate body 1321 and a rotating shaft 1322. The valve plate body 1321 is connected to the rotating shaft 1322. One end of the rotating shaft 1322 is connected to the output end of the motor 133. The motor 133 outputs a circular motion to drive the valve plate body 1321 to rotate through the rotating shaft 1322, and realizes the opening and closing of the smoke exhaust passage 1311. Furthermore, the motor 133 can adjust the rotation stroke of the valve plate 132, thereby adjusting the opening degree of the smoke exhaust passage 1311, and further improving the oil and smoke removal efficiency of the range hood 100 and the integrated stove 200.

[0095] In some embodiments, the driving mechanism further includes a transmission member. The transmission member is disposed between the motor 133 and the rotating shaft 1322 to transmit the motion of the motor 133 through the transmission member, and finally drive the valve plate body 1321 to rotate through the rotating shaft 1322, so that the smoke exhaust passage 1311 is opened and / or closed.

[0096] It is not difficult to understand that the cooking appliance assembly 212 can cook food in modes such as stir-frying and steaming. The oil fumes and steam generated in the stir-frying mode and the steaming mode can be sucked away by the range hood 100. Especially, the amount of oil fumes generated in the stir-frying mode is different. Therefore, the blower 122 has multiple different working modes, and in different working modes, the rotation speed of the blower 122 is different.

[0097] Furthermore, in order to facilitate the mutual cooperation between the blower and the check valve 130, in the embodiments of the present application, the range hood 100 further includes a controller, and the controller is electrically connected to the motor 133 and the blower 122 respectively; the controller is used to obtain the working mode of the blower 122, and control the motor 133 according to the working mode to drive the valve plate 132 to rotate. In this way, through the setting of the controller, the opening degree of the smoke exhaust passage 1311 is matched with the working mode of the blower 122, further improving the smoke exhaust efficiency of the range hood 100 and the integrated stove 200.

[0098] Combined with Figure 11 and Figure 12 , Exemplarily, the blower 122 has a first working mode. When the controller obtains that the blower 122 is working in the first working mode, the controller can control the motor 133 to drive the valve plate 132 to rotate to the first preset position 150 and open the smoke exhaust passage 1311.

[0099] In some embodiments, the blower 122 has a second working mode. When the controller obtains that the blower 122 is working in the second working mode, the controller can control the motor 133 to drive the valve plate 132 to rotate to the second preset position 160 to ensure that the smoke exhaust passage 1311 is opened.

[0100] It should be noted that the rotational speed of the blower 122 when operating in the second operating mode is greater than that when operating in the first operating mode. During the operation of the range hood 100 and the integrated stove 200, the first operating mode and the second operating mode can be switched between each other. In this way, the controller can, according to the different operating modes of the blower 122, efficiently adjust the opening degree of the smoke exhaust passage 1311 by controlling the motor 133, thereby improving the smoke exhaust efficiency. During this process, by adjusting the opening degree of the smoke exhaust passage 1311, the power consumption of the range hood 100 and the integrated stove 200 can also be reduced, and the user experience can be improved.

[0101] It should still be noted that the operating modes of the blower 122 and the preset positions of the valve piece 132 rotating in the embodiments of the present application are not limited to the above two and the two positions shown in the accompanying drawings of the present application, and the embodiments of the present application do not limit this.

[0102] See Figure 13 and Figure 14 , in some embodiments, the check valve 130 further includes a first stop member 134. The first stop member 134 is disposed on the inner wall of the valve body 131. When the smoke exhaust passage 1311 is closed, along the thickness direction of the valve piece 132, the first stop member 134 stops on one side of the valve piece 132. In this way, when the smoke exhaust passage 1311 is closed, through the stop cooperation between the first stop member 134 and the valve piece 132, the rotational position of the valve piece 132 is restricted, thereby avoiding the situation where the smoke exhaust passage is not tightly closed due to excessive rotation of the valve piece 132. In this way, the reflux of oil fume and peculiar smell can be reduced, and the user experience can be enhanced.

[0103] It should be noted that when the smoke exhaust passage 1311 is closed, the first stop member 134 can stop on the side of the valve piece 132 facing the inlet end 1312 of the valve body 131, or the first stop member 134 can stop on the side of the valve piece 132 facing the outlet end 1313 of the valve body 131.

[0104] See Figure 15 and Figure 16 , in some embodiments, the check valve 130 further includes a second stop member 135. The second stop member 135 is disposed on the inner wall of the valve body 131. When the smoke exhaust passage 1311 is opened, along the thickness direction of the valve piece 132, the second stop member 135 stops on one side of the valve piece 132.

[0105] Exemplarily, when the valve plate 132 rotates to the second preset position 160, along the thickness direction of the valve plate 132, the second stopper 135 stops at one side of the valve plate 132. In this way, through the cooperative connection between the second stopper 135 and the valve plate 132, the maximum stroke angle of the valve plate 132 is limited to ensure the maximum opening degree of the smoke exhaust passage 1311, thereby improving the smoke exhaust efficiency of the range hood 100 and the integrated cooking stove 200. Furthermore, during the smoke exhaust process, the second stopper 135 forms a supporting effect on the valve plate 132 to prevent the valve plate 132 from vibrating, so as to reduce the working noise of the range hood 100 and the integrated cooking stove 200, and further improve the user experience.

[0106] It should be noted that the check valve 130 in the embodiments of the present application includes at least one of the first stopper 134 and the second stopper 135.

[0107] See Figure 13 and Figure 14 , in some embodiments, a seal 136 is provided on the valve plate 132; when the smoke exhaust passage 1311 is closed, the seal 136 is in sealing contact with the inner wall of the valve body 131.

[0108] Exemplarily, the seal 136 is provided on the circumferential edge of the valve plate body 1321. When the smoke exhaust passage 1311 is closed, a sealed connection is formed by the contact between the seal 136 and the inner wall of the valve body 131 to prevent the reflux of oil fume and peculiar smell, thereby improving the user experience.

[0109] It should be noted that the phrases such as "one embodiment", "embodiment", "exemplary embodiment", "some embodiments" mentioned in the specification indicate that the described embodiments may include specific features, structures or characteristics, but not necessarily every embodiment includes such specific features, structures or characteristics. In addition, such phrases do not necessarily refer to the same embodiment. In addition, when combining specific features, structures or characteristics in an embodiment, implementing such features, structures or characteristics in combination with other embodiments, whether explicitly or implicitly described, is within the knowledge scope of those skilled in the art.

[0110] Generally speaking, terms should be understood at least in part by their use in the context. For example, at least in part according to the context, the term "one or more" used in the text can be used to describe any feature, structure or characteristic in a singular sense, or can be used to describe a combination of features, structures or characteristics in a plural sense. Similarly, at least in part according to the context, terms such as "a" or "the" can also be understood as conveying a singular usage or conveying a plural usage.

[0111] It should be readily understood that the terms "on", "above", and "over" in this application should be construed in the broadest manner so that "on" not only means "directly on something", but also includes the meaning of "on something" with intervening features or layers therebetween, and "above" or "over" not only includes the meaning of "above" or "over something", but may also include the meaning of "above" or "over something" with no intervening features or layers therebetween (i.e., directly on something).

[0112] In addition, for ease of description, spatial relative terms may be used in the text, such as "below", "beneath", "under", "above", "over", etc., to describe the relationship of one element or feature to other elements or features as shown in the figures. Spatial relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation shown in the figures. The device may have other orientations (rotated 90° or at other orientations), and the spatial relative descriptive terms used in the text may be interpreted accordingly as well.

[0113] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application and are not intended to limit them; although the present application has been described in detail with reference to the foregoing embodiments, those of ordinary skill in the art should understand that they can still modify the technical solutions described in the foregoing embodiments, or perform equivalent replacements on some or all of the technical features; and these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. An oil fume extractor, characterized in that, Comprising: A chassis (110), the chassis (110) having a smoke collecting chamber (111); A fan assembly (120), the fan assembly (120) being located within the smoke collecting chamber (111); the fan assembly (120) includes a housing (121) and a fan (122), the housing (121) having a smoke suction passage (1211), the housing (121) having a smoke suction port and a smoke exhaust port, the smoke suction port communicating the smoke suction passage (1211) and the smoke collecting chamber (111), the smoke exhaust port and the smoke suction passage (1211) being in communication; the fan (122) is located within the smoke suction passage (1211); A check valve (130), the check valve (130) including a valve body (131) and a valve flap (132), the valve body (131) being located within the smoke collecting chamber (111) and on the side where the smoke exhaust port is located, the valve body (131) having a smoke exhaust passage (1311), an inlet end (1312) of the valve body (131) and the housing (121) being in communication through the smoke exhaust port, an outlet end (1313) of the valve body (131) extending to the outside of the chassis (110); the valve flap (132) is movably disposed within the smoke exhaust passage (1311); A driving mechanism, the driving mechanism being disposed on the check valve (130); the driving mechanism is configured to, when the fan (122) is operating, drive the valve flap (132) to open the smoke exhaust passage (1311) and adjust the opening degree of the smoke exhaust passage (1311), and / or, when the fan (122) stops operating, drive the valve flap (132) to close the smoke exhaust passage (1311).

2. The range hood according to claim 1, wherein, Further comprising an air duct extension assembly (140), at least a part of the air duct extension assembly (140) being disposed on the chassis (110) and on the side where the outlet end (1313) is located, the air duct extension assembly (140) and the outlet end (1313) being in communication.

3. The range hood according to claim 2, characterized in that, The air duct extension assembly (140) includes a first connector (141), the first connector (141) being disposed on the outer wall of the chassis (110), and an end of the first connector (141) being sealingly connected to the outlet end (1313).

4. The range hood according to claim 3, characterized in that, The air duct extension assembly (140) further includes a connecting extension pipe (142), the connecting extension pipe (142) being disposed at an end of the first connector (141) facing away from the chassis (110); an end of the connecting extension pipe (142) is sealingly connected to an end of the first connector (141).

5. The range hood according to claim 4, wherein, The air duct extension assembly (140) further includes a second connector (143), the second connector (143) being disposed at an end of the connecting extension pipe (142) facing away from the first connector (141); an end of the second connector (143) is sealingly connected to an end of the connecting extension pipe (142).

6. The range hood according to any one of claims 1-5, characterized in that, The driving mechanism includes a motor (133), the motor (133) is arranged outside the valve body (131), and the motor (133) is connected to the valve plate (132); When the fan (122) starts, the motor (133) drives the valve plate (132) to rotate to open the smoke exhaust passage (1311) and adjust the opening degree of the smoke exhaust passage (1311); When the fan (122) stops, the motor (133) drives the valve plate (132) to rotate to close the smoke exhaust passage (1311).

7. The range hood according to claim 6, characterized in that, It further includes a controller, and the controller is electrically connected to the motor (133) and the fan (122) respectively; The controller is used to obtain the working mode of the fan (122) and control the motor (133) according to the working mode to drive the valve plate (132) to rotate.

8. The range hood according to claim 7, characterized in that, The check valve (130) further includes a first stop member (134), the first stop member (134) is arranged on the inner wall of the valve body (131), and when the smoke exhaust passage (1311) is closed, along the thickness direction of the valve plate (132), the first stop member (134) stops on one side of the valve plate (132); And / or, the check valve (130) further includes a second stop member (135), the second stop member (135) is arranged on the inner wall of the valve body (131), and when the smoke exhaust passage (1311) is opened, along the thickness direction of the valve plate (132), the second stop member (135) stops on one side of the valve plate (132).

9. The range hood according to any one of claims 1-5, characterized in that, A seal (136) is arranged on the valve plate (132); when the smoke exhaust passage (1311) is closed, the seal (136) is in sealing contact with the inner wall of the valve body (131).

10. A kitchen appliance, characterized in that, It includes the range hood (100) according to any one of claims 1-9.

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