Range hood

Abstract

The range hood comprises a range hood body, a smoke collecting body and an oil cup, the range hood body comprises a fan assembly and a flue assembly, the fan assembly comprises a fan box and a fan contained in the fan box, and the fan box is provided with a first oil guide part, a second oil guide part and an air inlet penetrating through the first oil guide part; the first oil guide part is located on the rear side of the draught fan and located above the second oil guide part, the second oil guide part is located below the draught fan, the flue assembly is connected with the draught fan box and communicates with the air inlet, the smoke collecting body is connected with the flue assembly, and oil smoke passes through the smoke collecting body and the flue assembly and enters the draught fan box through the air inlet. According to the embodiment of the invention, the first oil guide part, the second oil guide part and the air inlet penetrating through the first oil guide part are arranged, so that the second oil guide part is used for receiving oil stains dropping from the first oil guide part and the fan and discharging the oil stains to the oil cup, the oil guide requirement of the range hood is met, and the suction efficiency of the range hood is kept.

Description

TECHNICAL FIELD

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

[0002] The range hood is one of the indispensable kitchen household appliances in modern families. The range hood works by using the principle of fluid dynamics. An oil smoke fan is usually installed in the casing to suck and exhaust oil smoke and filter some oil particles by using a filter screen.

[0003] In the related art, oil liquid is generated inside the range hood after the range hood works for a long time. If the oil liquid is not discharged from the inside of the range hood, that is, the oil liquid accumulates in the inside of the range hood for a long time, on the one hand, the suction effect of the range hood is affected, and on the other hand, the service life of the range hood is reduced. SUMMARY

[0004] The embodiment of the present application provides a range hood, which aims to meet the oil guiding demand of the range hood and keep the suction efficiency of the range hood.

[0005] The embodiment of the present application provides a range hood, which comprises a hood main body, a smoke collecting main body and an oil cup. The hood main body comprises a fan assembly and a flue assembly. The fan assembly comprises a fan box and a fan accommodated in the fan box. The fan box has a first oil guiding part, a second oil guiding part and an air inlet penetrating through the first oil guiding part. The first oil guiding part is located at the rear side of the fan, and the first oil guiding part is located above the second oil guiding part. The second oil guiding part is located below the fan. The flue assembly is connected with the fan box and communicates with the air inlet. The smoke collecting main body is connected with the flue assembly. Oil smoke enters the fan box through the smoke collecting main body, the flue assembly and the air inlet. Oil dirt dropped around the air inlet is drained to the second oil guiding part through the first oil guiding part. The second oil guiding part converges oil dirt dropped from the first oil guiding part and the fan to the oil cup.

[0006] Further, the hood main body further comprises a drainage assembly. The drainage assembly is connected at the bottom of the fan box and located above the oil cup. The fan box has an oil discharge hole communicating with the second oil guiding part. The second oil guiding part drains oil dirt to the oil cup through the oil discharge hole and the oil guiding channel.

[0007] Further, the flue assembly penetrates through the drainage assembly. The oil guiding channel has a first oil leakage hole located behind the flue assembly. The projection of the first oil leakage hole towards the lower side falls on the smoke collecting main body. The oil cup is connected at the bottom of the smoke collecting main body.

[0008] Further, the smoke duct assembly is arranged in the drainage assembly, the oil guide channel has a first oil leakage hole located at the rear of the smoke duct assembly, the oil cup includes a main oil cup and a secondary oil cup, the main oil cup is connected to the bottom of the smoke collection body, and the secondary oil cup is connected to the drainage assembly to receive oil discharged from the first oil leakage hole.

[0009] Further, the smoke duct assembly is arranged in the drainage assembly, the oil guide channel includes two oil guide grooves, the two oil guide grooves are respectively located at the left and right sides of the smoke duct assembly and extend in the front-rear direction, and the oil discharge holes are arranged in pairs, and each oil guide groove is in communication with one oil discharge hole.

[0010] Further, the drainage assembly includes an upper wall plate and a surrounding frame, the upper wall plate is connected to the bottom of the fan box, the upper wall plate is provided with the oil guide groove, the surrounding frame is connected to the circumferential side of the upper wall plate and extends towards the smoke collection body, the surrounding frame is provided with an oil collection channel inside the rear part of the smoke duct assembly, the surrounding frame is provided with a first oil leakage hole in communication with the oil collection channel, and the oil collection channel is in communication with the oil guide groove and the first oil leakage hole.

[0011] Further, the smoke machine body further includes a lifting drive assembly mounted on the fan box, the smoke duct assembly includes a fixed shell and a lifting shell arranged in each other, the fixed shell is fixedly connected to the fan box, the lifting shell is connected to the driving end of the lifting drive assembly and connected to the smoke collection body, the upper wall plate and the surrounding frame cooperate to form a receiving cavity, under the lifting drive of the lifting drive assembly, the smoke collection body has a first state of being at least partially located in the receiving cavity and a second state of extending out of the receiving cavity.

[0012] Further, the fan box includes a mounting shell located at the bottom and an oil receiving disc, the mounting shell includes a wind port wall plate and a drainage plate connected to each other, the wind port wall plate is provided with the air inlet, and the drainage plate is connected between the wind port wall plate and the oil receiving disc in the front-rear direction; the wind port wall plate is inclined from top to bottom in the direction close to the oil receiving disc, and the bottom surface of the oil receiving disc is inclined from bottom to top in the direction away from the wind port wall plate, wherein the mounting shell constitutes the first oil guide part, and the oil receiving disc constitutes the second oil guide part.

[0013] Further, the wind port wall plate and the horizontal direction have a first included angle, the first included angle is not less than 5 degrees and not more than 10 degrees, and / or the bottom surface of the oil receiving disc and the horizontal direction have a second included angle, the second included angle is not less than 5 degrees and not more than 10 degrees.

[0014] Further, the fan comprises a volute abutting against the guide plate.

[0015] Further, the smoke collecting main body comprises a guide component and a condensing component, the guide component comprises a guide plate, a smoke inlet grid and an oil receiving member, the height of the smoke inlet grid gradually decreases along the direction close to the guide plate, so that the bottom end of the smoke inlet grid is connected with the guide plate, and the guide plate is connected with the oil receiving member; the condensing component is connected with the top end of the smoke inlet grid; wherein the flue component is connected with the condensing component, so that the oil stains drop on the guide plate through the flue component and the condensing component, and are guided from the guide plate to the oil receiving member.

[0016] Further, the oil receiving member is provided with a second oil leakage hole, and the projection of the oil guide channel towards the lower direction falls on the oil receiving member, the projection of the second oil leakage hole towards the lower direction falls on the oil cup, and the oil cup is connected at the bottom of the smoke collecting main body.

[0017] The first oil guide part, the second oil guide part and the air inlet penetrating through the first oil guide part are arranged, wherein the oil stains dropping on the periphery of the air inlet can be guided to the second oil guide part through the first oil guide part, and the oil stains on the fan can drop to the second oil guide part, so that the second oil guide part receives the oil stains dropped from the first oil guide part and the fan, the second oil guide part discharges the converged oil stains to the oil cup, so as to avoid the accumulation of oil stains in the range hood, thereby avoiding the decrease of the suction efficiency of the range hood due to too much oil stains, so that the oil guiding demand of the range hood can be met, and the suction efficiency of the range hood can be maintained. BRIEF DESCRIPTION OF DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the related art, the drawings needed to be used in the embodiments or the prior art description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0019] Figure 1 It is a structural schematic diagram of the range hood in an embodiment of the present application;

[0020] Figure 2 It is a structural schematic diagram of the range hood in an embodiment of the present application; Figure 1 It is a structural schematic diagram of the range hood in an embodiment of the present application;

[0021] Figure 3 It is a structural schematic diagram of the range hood in an embodiment of the present application; Figure 2 It is an enlarged structural schematic diagram of the position B in the range hood in an embodiment of the present application;

[0022] Figure 4 It is a structural schematic diagram of the range hood in an embodiment of the present application;

[0023] Figure 5 Structure diagram of a drainage assembly in an embodiment of the present application;

[0024] Figure 6 Structure diagram of a part of a smoke machine main body in an embodiment of the present application;

[0025] Figure 7 Structure diagram of a part of a smoke machine main body in an embodiment of the present application;

[0026] Figure 8 Structure diagram of a smoke machine in an embodiment of the present application.

[0027] Brief Description of the Drawings: 1 - smoke machine; 10 - smoke machine main body; 11 - fan assembly; 111 - fan box; 111A - fan cavity; 111B - air inlet; 111C - oil discharge hole; 1111 - first oil guide part; 11111 - air outlet wall plate; 11112 - drainage plate; 1112 - second oil guide part; 112 - fan; 12 - flue assembly; 12A - flue passage; 121 - flue shell; 1211 - lifting shell; 1212 - fixed shell; 13 - lifting drive assembly; 14 - check valve; 15 - drainage assembly; 15A - accommodation cavity; 151 - oil guide channel; 151A - first oil leakage hole; 151B - oil guide groove; 152 - upper wall plate; 153 - frame; 153A - oil collection channel; 20 - smoke collection main body; 20A - smoke collection cavity; 20B - smoke suction port; 20C - smoke discharge port; 21 - flow guide assembly; 211 - smoke inlet grid; 212 - flow guide plate; 212B - oil discharge hole; 213 - oil receiving part; 213A - second oil leakage hole; 22 - condensation assembly; 30 - oil cup; X - height direction; Y - horizontal direction. DETAILED DESCRIPTION

[0028] In order to make the purpose, technical solutions and advantages of the present application clearer, the present application will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and not to limit the present application.

[0029] Please refer to Figures 1-3 The embodiment of the present application provides a smoke machine 1, which comprises a smoke machine main body 10, a smoke collection main body 20 and an oil cup 30. The smoke machine main body 10 comprises a fan assembly 11 and a flue assembly 12, and the smoke collection main body 20 is connected with the flue assembly 12. It can be understood that a cooking bench is usually arranged below the smoke machine 1, one end of the flue assembly 12 is communicated with the fan assembly 11, the other end of the flue assembly 12 is communicated with the smoke collection main body 20, and the smoke collection main body 20 is arranged on the side of the smoke machine main body 10 close to the cooking bench.

[0030] The fan assembly 11 comprises a fan box 111 and a fan 112 accommodated in the fan box 111, that is, the fan box 111 has a fan cavity 111A, and the fan 112 is arranged in the fan cavity 111A. The fan 112 comprises a motor and a fan wheel connected with an output shaft of the motor. The motor can be a totally enclosed single-phase capacitor running asynchronous motor, and the fan wheel can be a centrifugal fan. When the motor drives the fan wheel to rotate, a negative pressure area is formed in the fan cavity 111A, that is, the internal air pressure of the fan cavity 111A is lower than the external air pressure, so that the oil fume can enter the fan assembly 11 from the smoke collecting body 20 and the flue assembly 12 in sequence, and be discharged to the outside of the room through the exhaust pipe (not shown in the figure). It can be understood that, in order to prevent the oil fume from flowing backward, the range hood 1 is usually equipped with a check valve 14 during the exhaust process.

[0031] It can be understood that the fan box 111 is usually made of metal. For example, the fan box 111 is generally made of A3 cold-rolled steel plate (or stainless steel plate) by stamping and welding, and the surface is treated by phosphating and spraying, so as to reduce the probability of rusting of the fan box 111, so that the fan box 111 can better protect the motor and the fan wheel, reduce the probability of damage of the motor and the fan wheel, and thus the range hood 1 can have a longer service life. After the surface of the fan box 111 is treated by phosphating and spraying, the fan box 111 has a smooth appearance and is easy to clean.

[0032] Further, after the range hood 1 works for a long time, the oil fume is absorbed by the range hood 1, and when the oil fume with heat flows to the fan cavity 111A, the temperature of the oil fume will decrease, so that the inside of the range hood 1 is easy to condense into oil stains. If the oil stains accumulate in the inside of the range hood 1 for a long time, the suction efficiency of the range hood 1 will be reduced.

[0033] Please refer to Figures 2-3 Therefore, the fan box 111 has a first oil guide part 1111 and a second oil guide part 1112. The first oil guide part 1111 is arranged at the rear side of the fan 112, and the first oil guide part 1111 is arranged above the second oil guide part 1112. The second oil guide part 1112 is arranged below the fan 112, so that the second oil guide part 1112 can receive the oil stains dropped from the first oil guide part 1111 and the fan 112.

[0034] The fan box 111 also has an air inlet 111B penetrating through the first oil guide part 1111. The flue assembly 12 communicates with the fan box 111 and the air inlet 111B. It can be understood that the flue assembly 12 is formed with an exhaust passage 12A for guiding the oil fume to move from the smoke collecting body 20 to the range hood body 10, that is, the oil fume enters the fan cavity 111A from the smoke collecting body 20, the exhaust passage 12A and the air inlet 111B, and is discharged to the outside of the room from the exhaust pipe.

[0035] It can be understood that when the oil stains drop on the periphery of the air inlet 111B, the oil stains are drained to the second oil guide part 1112 through the first oil guide part 1111, so that the second oil guide part 1112 can receive the oil stains on the periphery of the air inlet 111B, and since the second oil guide part 1112 is located below the fan 112, the second oil guide part 1112 can also receive the oil stains dropped by the fan 112, that is, the second oil guide part 1112 converges the oil stains dropped by the first oil guide part 1111 and the fan 112, and discharges the oil stains to the oil cup 30 through the second oil guide part 1112, so as to avoid the accumulation of oil stains in the range hood 1, thereby meeting the oil guiding requirement of the range hood 1.

[0036] Further, the smoke exhaust channel 12A can be provided with a flow regulating member (not shown in the figure), which can regulate the oil fume entering the smoke exhaust channel 12A, so as to reduce the probability of vortex of the oil fume in the smoke exhaust channel 12A, and also reduce the probability of collision of the oil fume with the inner wall of the smoke exhaust channel 12A, thereby reducing the noise of the oil fume flowing through the smoke exhaust channel 12A, so as to reduce the noise of the range hood 1.

[0037] Furthermore, the inner wall of the smoke exhaust channel 12A can be provided with a noise absorbing member (not shown in the figure), so as to absorb the noise in the smoke exhaust channel 12A, thereby reducing the overall noise of the range hood 1, improving the user experience, and it can be understood that the flow regulating member can be made of a noise absorbing material, so that the flow regulating member has the function of noise absorption, and can also reduce the overall noise of the range hood 1. Exemplarily, the noise absorbing material includes but is not limited to natural plant fiber, glass fiber, rock wool, foamed glass, foamed metal, foamed plastic and polystyrene perlite. In other embodiments, the noise absorbing material can also be other materials.

[0038] The embodiment of the present application sets the first oil guide part 1111, the second oil guide part 1112 and the air inlet 111B penetrating the first oil guide part 1111, wherein the oil stains dropped on the periphery of the air inlet 111B can be drained to the second oil guide part 1112 through the first oil guide part 1111, and the oil stains on the fan 112 can drop to the second oil guide part 1112, so that the second oil guide part 1112 receives the oil stains dropped by the first oil guide part 1111 and the fan 112, and discharges the converged oil stains to the oil cup 30, so as to avoid the accumulation of oil stains in the range hood 1, thereby avoiding the reduction of the suction efficiency of the range hood 1 due to too much oil stains, so that the oil guiding requirement of the range hood 1 can be met, and the suction efficiency of the range hood 1 can be maintained.

[0039] Please refer to Figures 3-4In some embodiments, the range hood main body 10 further comprises a drainage assembly 15 connected to the bottom of the fan box 111. The drainage assembly 15 can be formed with an oil guide channel 151, and the fan box 111 has an oil discharge hole 111C communicating with the second oil guide portion 1112. The drainage assembly 15 is located above the oil cup 30. It can be understood that when the oil dirt drops from the first oil guide portion 1111 and the fan 112 to the second oil guide portion 1112, the oil guide channel 151 communicates with the oil discharge hole 111C, so that the oil dirt on the second oil guide portion 1112 is discharged to the oil cup 30 through the oil discharge hole 111C and the oil guide channel 151, thereby avoiding accumulation of oil dirt in the range hood 1.

[0040] Referring to Figures 4-5 Further, in some embodiments, the flue assembly 12 is arranged in the drainage assembly 15, so that the flue assembly 12 is connected to the fan box 111 and communicates with the air inlet 111B. The oil guide channel 151 has a first oil leakage hole 151A located behind the flue assembly 12, i.e., the flue assembly 12 has a flue shell 121, and the oil guide channel 151 is arranged on the left and right sides and the rear side of the flue shell 121, so that the oil dirt flows from the left and right sides of the flue shell 121 to the rear side of the flue shell 121, and the oil guide channel 151 has the first oil leakage hole 151A located behind the flue assembly 12, so that the oil dirt on the oil guide channel 151 is discharged to the oil cup 30 through the first oil leakage hole 151A, thereby meeting the oil guide requirement of the range hood 1.

[0041] Furthermore, the number of the first oil leakage hole 151A can be multiple, which is not specifically limited in the embodiments of the present application. The projection of the first oil leakage hole 151A towards the downward direction falls on the smoke collection main body 20, and at this time, the oil cup 30 is connected to the bottom of the smoke collection main body 20. It can be understood that when the oil dirt is discharged to the oil cup 30 through the first oil leakage hole 151A, the projection of the first oil leakage hole 151A towards the downward direction falls in the oil cup 30, because the first oil leakage hole 151A is arranged towards the downward direction and the oil cup 30 is connected to the bottom of the smoke collection main body 20, so that the oil cup 30 can receive the oil dirt flowing out through the first oil leakage hole 151A, thereby avoiding the oil dirt from dropping outside the range hood 1.

[0042] The smoke duct assembly 12 is arranged in the drainage assembly 15. In another embodiment, the oil cup 30 comprises a main oil cup and a sub oil cup. The main oil cup is connected to the bottom of the smoke collecting body 20, so that the main oil cup is used to collect oil stains on the smoke collecting body 20. The sub oil cup is connected to the drainage assembly 15, and the oil guide channel 151 has a first oil leakage hole 151A located at the rear of the smoke duct assembly 12. It can be understood that the oil stains on the second oil guide part 1112 flow to the oil guide channel 151 through the oil discharge hole 111C, and the oil guide channel 151 is provided with the first oil leakage hole 151A at the rear of the smoke duct assembly 12, so that the oil stains on the oil guide channel 151 flow to the sub oil cup through the first oil leakage hole 151A. In this way, the oil guide requirement of the range hood 1 is met.

[0043] It should be noted that the projection of the sub oil cup along the height direction X of the range hood 1 can fall on the main oil cup, so that the oil stains of the sub oil cup can be discharged to the main oil cup. At this time, the user only needs to handle the oil stains on the main oil cup. Of course, the projection of the sub oil cup along the height direction X of the range hood 1 can also not fall on the main oil cup. At this time, because the range hood 1 uses two oil cups 30, the oil stains are collected by the two oil cups 30, and the user does not need to clean the oil cup 30 frequently.

[0044] Please refer to Figure 5 , the smoke duct assembly 12 is arranged in the drainage assembly 15. In some embodiments, the oil guide channel 151 comprises two oil guide grooves 151B, which are respectively located at the left and right sides of the smoke duct assembly 12 and extend along the front-rear direction of the smoke duct assembly 12. It can be understood that the number of oil discharge holes 111C can be two, and the oil discharge holes 111C are arranged at the left and right sides of the smoke duct assembly 12 in a spaced manner, so that the oil guide grooves 151B are in communication with the oil discharge holes 111C, that is, one oil guide groove 151B corresponds to one oil discharge hole 111C. When the oil stains of the first oil guide part 1111 and the fan 112 flow to the second oil guide part 1112, the oil stains on the second oil guide part 1112 can flow to the spaced oil discharge holes 111C, and the oil guide grooves 151B are in communication with the oil discharge holes 111C, so that the oil stains flow to the oil guide grooves 151B. The oil stains are guided to the rear side of the oil guide channel 151 through the oil guide grooves 151B, so that the oil stains are discharged to the oil cup 30.

[0045] Please refer to Figures 6-7 In some embodiments, the fan box 111 comprises a mounting shell and an oil receiving disc, and the mounting shell and the oil receiving disc are arranged at the bottom of the fan box 111, so as to collect the oil stains condensed in the fan cavity 111A. That is, the first oil guide part 1111 can be the mounting shell, and the second oil guide part 1112 can be the oil receiving disc.

[0046] Specifically, the installation shell comprises a wind port wall plate 11111 and a flow guide plate 11112 connected to each other, the wind port wall plate 11111 is provided with an air inlet 111B, and the flow guide plate 11112 is connected between the wind port wall plate 11111 and the oil receiving disc in the front-rear direction. It can be understood that the wind port wall plate 11111 extends in the front-rear direction, and the middle of the wind port wall plate 11111 is provided with the air inlet 111B, so that the oil stains can drop on the side of the air inlet 111B, and the oil stains can also drop into the smoke collecting body 20 through the air inlet 111B. The flow guide plate 11112 extends along the height direction X, one end of the flow guide plate 11112 is connected with the wind port wall plate 11111, and the other end of the flow guide plate 11112 is connected with the oil receiving disc, so that the oil stains dropped on the side of the air inlet 111B flow out of the oil receiving disc through the wind port wall plate 11111 and the flow guide plate 11112.

[0047] Further, the wind port wall plate 11111 is inclined from top to bottom in the direction close to the oil receiving disc, and the bottom surface of the oil receiving disc is inclined from bottom to top in the direction away from the wind port wall plate 11111, so that the flow of oil stains on the wind port wall plate 11111 and the bottom surface of the oil receiving disc is more smooth. In this way, on the one hand, the efficiency of discharging oil stains to the oil cup 30 can be improved, and on the other hand, the oil stains can be prevented from remaining on the wind port wall plate 11111 and the oil receiving disc.

[0048] Further, in some embodiments, the wind port wall plate 11111 and the horizontal direction Y have a first included angle, the first included angle is not less than 5 degrees and not more than 10 degrees, for example, the first included angle can be 5 degrees, 7 degrees, 9 degrees or 10 degrees. In this way, the flow of oil stains on the wind port wall plate 11111 can be more smooth, so as to facilitate the flow of oil stains to the oil receiving disc.

[0049] If the first included angle is less than 5 degrees, since the first included angle is small, the flow of oil stains on the wind port wall plate 11111 is not smooth, which easily leads to the accumulation of oil stains on the wind port wall plate 11111, and further leads to the accumulation of oil stains in the range hood 1, so as to reduce the smoke suction efficiency of the range hood 1. If the first included angle is greater than 10 degrees, since the first included angle is large, the inclination angle of the air inlet 111B and the horizontal direction Y is large, which leads to the inclined connection of the fan box 111 and the flue assembly 12. At this time, part of the oil fume is blocked by the wind port wall plate 11111, so as to reduce the smoke suction efficiency of the range hood 1.

[0050] Further, in some embodiments, the bottom surface of the oil receiving disc and the horizontal direction Y have a second included angle, the second included angle is not less than 5 degrees and not more than 10 degrees, for example, the second included angle can be 5 degrees, 7 degrees, 9 degrees or 10 degrees. In this way, the flow of oil stains on the bottom surface of the oil receiving disc can be more smooth, so as to facilitate the flow of oil stains to the oil discharge hole 111C.

[0051] If the second included angle is less than 5 degrees, since the second included angle is small, the flow of oil stains on the bottom surface of the oil pan is not smooth, which can easily cause the oil stains to accumulate on the bottom surface of the oil pan, and then cause the oil stains to accumulate in the range hood 1, so as to reduce the smoke suction efficiency of the range hood 1. If the second included angle is greater than 10 degrees, since the second included angle is large, the overall size of the fan box 111 is large, which causes the overall size of the range hood 1 to be large, and is not convenient for the production and installation of the range hood 1.

[0052] In some embodiments, the fan 112 further comprises a volute, which functions to guide the gas leaving the impeller to the volute outlet and convert the local dynamic pressure into static pressure. The volute is in abutment with the flow guide plate 11112, that is, the volute portion is in abutment with the flow guide plate 11112, which on the one hand improves the stability of the connection between the fan 112 and the flow guide plate 11112, and on the other hand, since the air inlet 111B is arranged on the air outlet wall plate 11111 and the flow guide plate 11112 is connected with the air outlet wall plate 11111, when the volute portion is in abutment with the flow guide plate 11112, the flow path of the oil fume can be shortened, which facilitates the rapid entry of the oil fume into the fan cavity 111A.

[0053] Please refer to Figure 5 and Figure 8 Further, in some embodiments, the flow guide assembly 15 comprises an upper wall plate 152 and a surrounding frame 153.

[0054] Specifically, the upper wall plate 152 is connected with the bottom of the fan box 111, and the upper wall plate 152 is further provided with an oil guide groove 151B, that is, the oil stains collected on the bottom surface of the oil pan flow from the oil discharge hole 111C to the oil guide groove 151B.

[0055] The surrounding frame 153 is connected to the circumferential side of the upper wall plate 152 and extends towards the direction of the smoke collecting main body 20, and the surrounding frame 153 is provided with an oil collecting channel 153A (as shown in Figure 4 that is, at the rear side of the flue assembly 12, the surrounding frame 153 is inwardly folded to form the oil collecting channel 153A, the first oil leakage hole 151A is in communication with the oil collecting channel 153A, and the oil collecting channel 153A is in communication with the oil guide groove 151B, at this time, the oil stains on the oil guide groove 151B flow to the oil collecting channel 153A, and then flow to the oil cup 30 through the first oil leakage hole 151A, so as to meet the oil guiding requirement of the range hood 1.

[0056] Please refer to Figure 8, The smoke machine main body 10 further comprises a lifting driving assembly 13, the lifting driving assembly 13 is installed in the fan cavity 111A, the smoke duct shell 121 comprises a fixed shell 1212 and a lifting shell 1211 which are nested with each other, the fixed shell 1212 is fixedly connected with the fan box 111, the lifting shell 1211 is connected with the driving end of the lifting driving assembly 13, that is, the fixed end of the lifting driving assembly 13 is connected with the fan box 111, the driving end of the lifting driving assembly 13 is connected with the lifting shell 1211, and the lifting shell 1211 is further connected with the smoke collecting main body 20; along the height direction X, the lifting driving assembly 13 can drive the smoke collecting main body 20 to move relative to the smoke machine main body 10, so that the smoke collecting main body 20 can adapt to different cooktop table top heights to meet different installation requirements; it can also adapt to different smoke suction purposes, so as to improve the smoke suction quality, for example, when the oil fume is large, the smoke collecting main body 20 can be driven by the lifting driving assembly 13 to move towards the cooktop table top, so as to reduce the movement path of the oil fume outside the smoke collecting main body 20, reduce the probability of oil fume escaping, and improve the smoke collecting effect of the smoke collecting main body 20, so as to improve the smoke extraction efficiency of the range hood 1; when the cooktop table top needs to be cleaned, the smoke collecting main body 20 can be driven by the lifting driving assembly 13 to move away from the table top, so as to increase the space above the cooktop table top, thereby facilitating the user to clean the cooktop table top. Exemplarily, the lifting driving assembly 13 can be but is not limited to an electric push rod, a linear motor, intermeshing gear racks and a wheel structure. In the embodiments of the present application, the specific form of the lifting driving assembly 13 is not limited.

[0057] Please refer to Figure 2 Further, the upper wall plate 152 and the surrounding frame 153 cooperate to form a containing cavity 15A, and the smoke collecting main body 20 can be contained in the containing cavity 15A, that is, when the user controls the lifting driving assembly 13 to rise, the smoke collecting main body 20 has a first state of being at least partially located in the containing cavity 15A; when the user controls the lifting driving assembly 13 to descend, the smoke collecting main body 20 has a second state of extending out of the containing cavity 15A, so that on the one hand, the user can clean the table top, and on the other hand, when the range hood 1 is in the second state, the smoke collecting main body 20 is contained in the containing cavity 15A, so that the smoke collecting main body 20 does not occupy the space below the cabinet.

[0058] It should be noted that the first state can be a state in which the range hood 1 works, and the second state can be a state in which the range hood 1 does not work.

[0059] Please continue to refer to Figure 2 In some embodiments, the smoke collecting main body 20 has a smoke collecting cavity 20A, and the smoke collecting main body 20 comprises a flow guide assembly 21 and a condensation assembly 22.

[0060] The flow guide assembly 21 has a smoke suction port 20B in communication with the smoke collection cavity 20A. The condensing assembly 22 is connected to the flow guide assembly 21. The condensing assembly 22 has a smoke exhaust port 20C in communication with the smoke collection cavity 20A. The smoke exhaust port 20C is in communication with the smoke exhaust passage 12A, so that the oil fume enters the fan cavity 111A through the smoke suction port 20B, the smoke collection cavity 20A, the smoke exhaust port 20C, the smoke exhaust passage 12A, and the air inlet 111B, and is discharged to the outdoor through the smoke exhaust pipe (not shown in the figure).

[0061] It can be understood that the flow guide assembly 21 includes a flow guide plate 212, a smoke inlet grid 211, and an oil receiving member 213. In the direction close to the flow guide plate 212, the height of the smoke inlet grid 211 gradually decreases, so that the bottom end of the smoke inlet grid 211 is connected to the flow guide plate 212. The flow guide plate 212 is connected to the oil receiving member 213. The condensing assembly 22 is connected to the top end of the smoke inlet grid 211. The condensing assembly 22 has a smoke exhaust port 20C in communication with the smoke collection cavity 20A. That is, the smoke inlet grid 211 has a smoke suction port 20B. The oil fume enters the smoke collection cavity 20A through the smoke suction port 20B, and is discharged to the smoke exhaust passage 12A through the smoke exhaust port 20C. When the oil fume flows into the fan cavity 111A, the temperature of the oil fume decreases, so that the oil fume is easy to form oil stains on the inner wall of the fan box 111. Since the smoke duct assembly 12 is connected to the condensing assembly 22, the smoke exhaust port 20C is in communication with the smoke exhaust passage 12A and the fan cavity 111A. At this time, part of the oil stains formed on the inner wall of the fan box 111 can drip onto the flow guide plate 212 through the air inlet 111B, the smoke exhaust passage 12A, and the smoke collection cavity 20A. The flow guide plate 212 is provided with an oil outlet hole 212B, so that the oil stains on the flow guide plate 212 are guided to the oil receiving member 213 through the oil outlet hole 212B, and then flow to the oil cup 30 through the oil receiving member 213. Furthermore, another part of the oil stains formed on the inner wall of the fan box 111 can drip on the oil stains around the air inlet 111B, and then be guided to the oil pan through the mounting shell, and then be discharged to the oil cup 30 through the oil discharge hole 111C and the oil guide channel 151. At this time, the oil stains in the range hood 1 are discharged to the oil cup 30 through two oil guide paths, so as to avoid the accumulation of oil stains in the range hood 1, and further avoid the decrease of the suction efficiency of the range hood 1 due to too much oil stains. In this way, the oil guide demand of the range hood 1 can be met, and the suction efficiency of the range hood 1 can be maintained.

[0062] Please continue to refer to Figure 2 , further, in some embodiments, the oil receiving member 213 is provided with a second oil leakage hole 213A. The projection of the oil guide channel 151 towards the downward direction falls on the oil receiving member 213. The projection of the second oil leakage hole 213A towards the downward direction falls on the oil cup 30. The oil cup 30 is connected to the bottom of the smoke collection main body 20.

[0063] Specifically, when the oil cup 30 is connected at the bottom of the smoke collection main body 20, the oil dirt is guided to the oil receiving disc through the air inlet wall plate 11111, and then flows to the oil guide groove 151B and the oil collecting channel 153A through the oil discharge hole 111C. The first oil leakage hole 151A is arranged on the oil collecting channel 153A, and the projection of the first oil leakage hole 151A downwardly falls on the oil receiving part 213. The second oil leakage hole 213A is arranged on the oil receiving part 213, and the projection of the second oil leakage hole 213A downwardly falls on the oil cup 30. Thus, the oil dirt drops from the first oil leakage hole 151A to the oil receiving part 213, and then drops from the second oil leakage hole 213A to the oil cup 30, so as to prevent the oil dirt from dropping outside the extractor hood 1.

[0064] The same or similar reference numerals in the drawings of the embodiments correspond to the same or similar components; in the description of the present application, it is understood that if the orientations or positional relationships indicated by the terms "upper", "lower", "left", "right" and the like are based on the orientations or positional relationships shown in the drawings, they are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, therefore the terms describing the positional relationships in the drawings are only used for exemplary illustration, and cannot be understood as a limitation on the present application. For those skilled in the art, the specific meanings of the above terms can be understood according to the specific circumstances.

[0065] The above is only a preferred embodiment of the present application, and does not limit the present application. Any modification, equivalent replacement and improvement made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A range hood characterized by, The smoke machine body, the smoke collection body and the oil cup are included. The smoke machine body includes a fan assembly and a flue assembly, the fan assembly includes a fan box and a fan accommodated in the fan box, the fan box has a first oil guide part, a second oil guide part and an air inlet penetrating through the first oil guide part, the first oil guide part is located at the rear side of the fan and above the second oil guide part, and the second oil guide part is located below the fan; the flue assembly is connected with the fan box and communicates with the air inlet; The smoke collection body is connected with the flue assembly, and the oil fume enters the fan box through the smoke collection body, the flue assembly and the air inlet; Wherein, the oil stains dropped on the periphery of the air inlet are drained to the second oil guide part through the first oil guide part, the second oil guide part converges to the oil stains dropped on the first oil guide part and the fan, and is discharged to the oil cup.

2. The hood as claimed in claim 1, wherein, The smoke machine body further includes a drainage assembly connected at the bottom of the fan box and located above the oil cup, and the fan box has an oil discharge hole communicating with the second oil guide part; Wherein, the drainage assembly is formed with an oil guide channel, and the second oil guide part discharges the oil stains to the oil cup through the oil discharge hole and the oil guide channel.

3. The hood as claimed in claim 2, wherein, The flue assembly is arranged in the drainage assembly, the oil guide channel has a first oil leakage hole located behind the flue assembly, the projection of the first oil leakage hole towards the lower side falls on the smoke collection body, and the oil cup is connected at the bottom of the smoke collection body.

4. The hood as claimed in claim 2 wherein, The flue assembly is arranged in the drainage assembly, the oil guide channel has a first oil leakage hole located behind the flue assembly; The oil cup includes a main oil cup connected to the bottom of the smoke collection body and a secondary oil cup connected with the drainage assembly for receiving the oil stains discharged from the first oil leakage hole.

5. The hood as claimed in claim 2 wherein, The flue assembly is arranged in the drainage assembly, the oil guide channel includes two oil guide grooves, the two oil guide grooves are respectively located on the left and right sides of the flue assembly and extend in the front-rear direction, and the oil discharge hole is spaced apart from two oil guide grooves, and each oil guide groove communicates with the oil discharge hole.

6. The hood as claimed in claim 5, wherein, The drainage assembly includes an upper wall plate connected with the bottom of the fan box and provided with the oil guide groove; The surrounding frame is connected to the periphery of the upper wall plate and extends towards the smoke collection body, wherein the surrounding frame is provided with an oil collection channel inside the rear side part of the flue assembly, and the surrounding frame is provided with a first oil leakage hole communicating with the oil collection channel, and the oil collection channel communicates with the oil guide groove and the first oil leakage hole.

7. The hood as claimed in claim 6, wherein, The smoke machine body further includes a lifting drive assembly mounted on the fan box, the flue assembly includes a fixed shell and a lifting shell arranged in each other, the fixed shell is fixedly connected with the fan box, the lifting shell is connected with the driving end of the lifting drive assembly and connected with the smoke collection body; The upper wall plate and the surrounding frame cooperatively form a receiving cavity, under the lifting drive of the lifting drive assembly, the smoke collection body has a first state of being at least partially located in the receiving cavity and a second state of extending out of the receiving cavity.

8. The hood according to any of the claims from 1 to 7, characterized in that, The fan box comprises a mounting shell at the bottom and an oil receiving disc, the mounting shell comprises a wind port wall plate and a flow guide plate connected together, the wind port wall plate is provided with the air inlet, and the flow guide plate is connected between the wind port wall plate and the oil receiving disc in the front-rear direction; The wind port wall plate is inclined from top to bottom in the direction close to the oil receiving disc, and the bottom surface of the oil receiving disc is inclined from bottom to top in the direction away from the wind port wall plate; The mounting shell constitutes the first oil guide part, and the oil receiving disc constitutes the second oil guide part.

9. The hood according to claim 8, characterized in that The wind port wall plate has a first included angle with the horizontal direction, the first included angle is not less than 5 degrees and not more than 10 degrees; and / or, The bottom surface of the oil receiving disc has a second included angle with the horizontal direction, the second included angle is not less than 5 degrees and not more than 10 degrees.

10. The hood according to claim 8, wherein The fan comprises a volute, and the volute abuts against the flow guide plate.

11. The hood as claimed in any one of claims 2 to 7, wherein, The smoke collecting main body comprises: A flow guide assembly comprising a flow guide plate, a smoke inlet grid and an oil receiving part, in the direction close to the flow guide plate, the height of the smoke inlet grid gradually decreases, so that the bottom end of the smoke inlet grid is connected with the flow guide plate, and the flow guide plate is connected with the oil receiving part; and A condensation assembly connected with the top end of the smoke inlet grid; The flue assembly and the condensation assembly are connected, so that the oil stains drop on the flow guide plate through the flue assembly and the condensation assembly, and are guided from the flow guide plate to the oil receiving part.

12. The hood according to claim 11, characterized in that The oil receiving part is provided with a second oil leakage hole, and the downward projection of the oil guide channel falls on the oil receiving part, the downward projection of the second oil leakage hole falls on the oil cup, and the oil cup is connected at the bottom of the smoke collecting main body.

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