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 hoods, and in particular to a range hood. Background Art

[0002] The range hood is one of the indispensable kitchen appliances in modern families. The range hood works based on the principle of fluid dynamics. A range hood fan is usually installed in the casing to suck and exhaust oil fumes through the range hood fan, and use a filter to filter out some grease particles.

[0003] In the related art, when the range hood works for a long time, oil will be produced inside the range hood. If the oil is not discharged from the interior of the range hood, that is, the oil accumulates inside the range hood for a long time, it will affect the suction effect of the range hood on the one hand, and reduce the service life of the range hood on the other hand. Utility Model Content

[0004] An embodiment of the present application provides a range hood, which is intended to meet the oil guide requirements of the range hood and maintain the suction efficiency of the range hood.

[0005] The embodiment of the present application provides a range hood, which includes a range hood body, a smoke collecting body and an oil cup, the range hood body including a fan assembly and a flue assembly, the fan assembly including a fan box and a fan accommodated in the fan box, the fan box having a first oil guiding part, a second oil guiding part and an air inlet penetrating the first oil guiding part, the first oil guiding part being located at the rear side of the fan, and the first oil guiding part being located above the second oil guiding part, the second oil guiding part being located below the fan, the flue assembly being connected to the fan box and communicating with the air inlet, the smoke collecting body being connected to the flue assembly, and oil smoke entering the fan box via the smoke collecting body, the flue assembly and the air inlet, wherein oil stains dripping on the periphery of the air inlet are drained to the second oil guiding part via the first oil guiding part, the second oil guiding part converges with the first oil guiding part and the oil stains dripping from the fan, and are discharged to the oil cup.

[0006] Furthermore, the range hood body also includes a drainage assembly, which is connected to the bottom of the fan box and located above the oil cup, and the fan box has an oil drain hole connected to the second oil guide part, wherein the drainage assembly forms an oil guide channel, and the second oil guide part discharges oil to the oil cup through the oil drain hole and the oil guide channel.

[0007] Furthermore, the flue assembly is penetrated through the drainage assembly, the oil guide channel has a first oil leakage hole located behind the flue assembly, the downward projection of the first oil leakage hole falls on the smoke collecting body, and the oil cup is connected to the bottom of the smoke collecting body.

[0008] Furthermore, the flue assembly is penetrated by 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 and a secondary oil cup, the main oil cup is connected to the bottom of the smoke collecting body, and the secondary oil cup is connected to the drainage assembly to receive the oil discharged from the first oil leakage hole.

[0009] Furthermore, the flue assembly is penetrated through the drainage assembly, and the oil guide channel includes two oil guide grooves, which are respectively located on the left and right sides of the flue assembly and extend in the front-to-back direction. Two oil drainage holes are arranged at intervals, and one oil guide groove is connected to each oil drainage hole.

[0010] Furthermore, 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, and the upper wall plate is provided with the oil drainage groove; the surrounding frame is connected to the peripheral side of the upper wall plate and extends toward the smoke collecting body, wherein the surrounding frame is located inside the rear part of the flue assembly and is provided with an oil collecting channel, and the surrounding frame is provided with a first oil leakage hole connected to the oil collecting channel, and the oil collecting channel is connected to both the oil drainage groove and the first oil leakage hole.

[0011] Furthermore, the range hood body also includes a lifting drive assembly installed on the fan box, and the flue assembly includes a fixed shell and a lifting shell that are nested with each other, the fixed shell is fixedly connected to the fan box, and the lifting shell is connected to the driving end of the lifting drive assembly and to the smoke collecting body; the upper wall plate and the surrounding frame cooperate to form a receiving cavity, and under the lifting drive of the lifting drive assembly, the smoke collecting body has a first state in which it is at least partially located in the receiving cavity, and a second state in which it extends out of the receiving cavity.

[0012] Furthermore, the fan box includes a mounting shell and an oil collecting pan located at the bottom, the mounting shell includes an air outlet wall panel and a guide plate connected to each other, the air outlet wall panel is provided with the air inlet, and the guide plate is connected between the air outlet wall panel and the oil collecting pan in the front-to-back direction; the air outlet wall panel is inclined from top to bottom in the direction close to the oil collecting pan, and the bottom surface of the oil collecting pan is inclined from bottom to top in the direction away from the air outlet wall panel, wherein the mounting shell constitutes the first oil guiding portion, and the oil collecting pan constitutes the second oil guiding portion.

[0013] Furthermore, there is a first angle between the air outlet wall panel and the horizontal direction, the first angle is not less than 5 degrees and not more than 10 degrees, and / or there is a second angle between the bottom surface of the oil receiving pan and the horizontal direction, the second angle is not less than 5 degrees and not more than 10 degrees.

[0014] Furthermore, the fan comprises a volute, and the volute abuts against the guide plate.

[0015] Furthermore, the smoke collecting body includes a guide component and a condensation component, the guide component includes a guide plate, a smoke inlet grid and an oil receiving piece, and the height of the smoke inlet grid gradually decreases in the direction approaching the guide plate, so that the bottom end of the smoke inlet grid is connected to the guide plate, and the guide plate is connected to the oil receiving piece; the condensation component is connected to the top end of the smoke inlet grid; wherein the flue component is connected to the condensation component, so that oil stains drip onto the guide plate through the flue component and the condensation component, and are diverted from the guide plate to the oil receiving piece.

[0016] Furthermore, a second oil leakage hole is provided on the oil receiving piece, and the downward projection of the oil guide channel falls on the oil receiving piece, and the downward projection of the second oil leakage hole falls on the oil cup, and the oil cup is connected to the bottom of the smoke collecting body.

[0017] The embodiment of the present application provides a first oil guide portion, a second oil guide portion and an air inlet that passes through the first oil guide portion, wherein oil stains dripping on the periphery of the air inlet can be guided to the second oil guide portion via the first oil guide portion, and oil stains on the fan can drip onto the second oil guide portion, so that the second oil guide portion receives the oil stains dripping from the first oil guide portion and the fan, and the second oil guide portion discharges the converged oil stains to the oil cup to avoid oil stains accumulating in the range hood, thereby preventing the range hood from reducing the suction efficiency due to excessive oil stains. In this way, the oil guide requirements of the range hood can be met, and the suction efficiency of the range hood can be maintained. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] In order to more clearly illustrate the technical solutions in the embodiments of the present application or related technologies, the drawings required for use in the embodiments or descriptions of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For those skilled in the art, other drawings can be obtained based on these drawings without paying any creative work.

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

[0020] Figure 2 For along Figure 1 Schematic diagram of the cross-sectional structure along the AA line;

[0021] Figure 3 for Figure 2 A schematic diagram of the enlarged structure at B in the middle;

[0022] Figure 4 A schematic structural diagram of a range hood in one embodiment of the present application from another perspective;

[0023] Figure 5 This is a schematic diagram of the structure of a drainage component in one embodiment of the present application;

[0024] Figure 6 This is a partial structural diagram of a range hood body in one embodiment of the present application;

[0025] Figure 7 This is a schematic diagram of a partially exploded structure of a range hood body in an embodiment of the present application;

[0026] Figure 8 This is a schematic diagram of the exploded structure of a range hood in one embodiment of the present application.

[0027] Description of the accompanying drawings: 1-range hood; 10-range hood body; 11-fan assembly; 111-fan box; 111A-fan chamber; 111B-air inlet; 111C-oil drain hole; 1111-first oil guide portion; 11111-air outlet wall plate; 11112-drain plate; 1112-second oil guide portion; 112-fan; 12-smoke duct assembly; 12A-smoke exhaust channel; 121-smoke duct shell; 1211-lifting shell; 1212-fixed shell; 13-lifting drive assembly; 14-check valve; 15 - drainage assembly; 15A- receiving chamber; 151- oil guide channel; 151A- first oil leakage hole; 151B- oil guide groove; 152- upper wall plate; 153- surrounding frame; 153A- oil collection channel; 20- smoke collecting body; 20A- smoke collecting chamber; 20B- smoking port; 20C- smoke exhaust port; 21- drainage assembly; 211- smoke inlet grid; 212- guide plate; 212B- oil outlet hole; 213- oil receiving piece; 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 solution and advantages of the present application more clearly understood, the present application is further described in detail below in conjunction with the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application and are not used to limit the present application.

[0029] See also Figure 1-Figure 3 The embodiment of the present application provides a range hood 1, which includes a range hood body 10, a smoke collecting body 20 and an oil cup 30. The range hood body 10 includes a fan assembly 11 and a flue assembly 12, and the smoke collecting body 20 is connected to the flue assembly 12. It can be understood that a stove is usually arranged below the range hood 1, one end of the flue assembly 12 is connected to the fan assembly 11, and the other end of the flue assembly 12 is connected to the smoke collecting body 20, and the smoke collecting body 20 is arranged on a side of the range hood body 10 close to the stove.

[0030] The fan assembly 11 includes 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. Among them, the fan 112 includes a motor and a wind wheel connected to the output shaft of the motor. The motor can adopt a fully enclosed single-phase capacitor-operated asynchronous motor, and the wind wheel can be a centrifugal wind wheel. When the motor drives the wind 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 air pressure of the external environment, so that the oil smoke can enter the fan assembly 11 through the smoke collecting body 20 and the flue assembly 12 in turn, and be discharged to the outside through the smoke exhaust pipe (not shown in the figure). It can be understood that in the process of exhausting smoke, in order to prevent the backflow of oil smoke, the range hood 1 is usually equipped with a check valve 14.

[0031] It is understandable 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 with 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 wind wheel, reduce the probability of damage to the motor and the wind wheel, and thus make the range hood 1 have a longer service life. After the surface of the fan box 111 is treated with phosphating and spraying, the fan box 111 can be smooth and easy to clean.

[0032] Furthermore, after the range hood 1 has been working for a long time, as the range hood 1 absorbs oil smoke and the oil smoke with heat flows to the fan chamber 111A, the temperature of the oil smoke will decrease, so that the inside of the range hood 1 will easily condense into oil stains. If the oil stains accumulate inside the range hood 1 for a long time, the suction efficiency of the range hood 1 will easily decrease.

[0033] See also Figure 2-Figure 3 To this end, 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 on the rear side of the fan 112, and the first oil guide part 1111 is arranged above the second oil guide part 1112, and the second oil guide part 1112 is arranged below the fan 112, so that the second oil guide part 1112 can receive the oil dripping from the first oil guide part 1111 and the fan 112.

[0034] The fan box 111 also has an air inlet 111B that passes through the first oil guide portion 1111. The flue assembly 12 is connected to the fan box 111 and to the air inlet 111B. It can be understood that the flue assembly 12 is formed with a smoke exhaust channel 12A, and the smoke exhaust channel 12A is used to guide the oil smoke to move toward the range hood body 10 through the smoke collecting body 20, that is, the oil smoke enters the fan chamber 111A through the smoke collecting body 20, the smoke exhaust channel 12A and the air inlet 111B, and is then discharged to the outside of the room from the smoke exhaust pipe.

[0035] It can be understood that when oil stains drip on the side around the air inlet 111B, the oil stains are guided to the second oil guiding portion 1112 via the first oil guiding portion 1111, so that the second oil guiding portion 1112 can receive the oil stains on the side around the air inlet 111B, and because the second oil guiding portion 1112 is located below the fan 112, the second oil guiding portion 1112 can also receive the oil stains dripping from the fan 112, that is, the second oil guiding portion 1112 converges the oil stains dripping from the first oil guiding portion 1111 and the fan 112, and discharges the oil stains to the oil cup 30 through the second oil guiding portion 1112, so as to avoid the accumulation of oil stains in the range hood 1, thereby meeting the oil guiding requirements of the range hood 1.

[0036] Furthermore, a rectifying component (not shown in the figure) can be provided in the smoke exhaust channel 12A, and the rectifying component can rectify the oil smoke entering the smoke exhaust channel 12A to reduce the probability of the oil smoke generating vortex in the smoke exhaust channel 12A, and can also reduce the probability of the oil smoke colliding with the inner wall of the smoke exhaust channel 12A, thereby reducing the noise of the oil smoke flowing through the smoke exhaust channel 12A, so as to reduce the noise of the range hood 1.

[0037] Furthermore, a muffler (not shown) may be provided on the inner wall of the smoke exhaust passage 12A to absorb the noise in the smoke exhaust passage 12A, thereby reducing the overall noise of the range hood 1 to improve the user experience. It is understandable that the range hood 1 may use a muffler material to make a rectifier, so that the rectifier has a muffler function and can reduce the overall noise of the range hood 1. Exemplarily, the muffler material includes but is not limited to natural plant fiber, glass fiber, rock wool, foam glass, foam metal, foam plastic, and polystyrene perlite. In other embodiments, the muffler material may also be other materials.

[0038] The embodiment of the present application is provided with a first oil guide portion 1111, a second oil guide portion 1112 and an air inlet 111B penetrating the first oil guide portion 1111, wherein oil stains dripping on the periphery of the air inlet 111B can be guided to the second oil guide portion 1112 via the first oil guide portion 1111, and the oil stains on the fan 112 can drip onto the second oil guide portion 1112, so that the second oil guide portion 1112 receives the oil stains dripping from the first oil guide portion 1111 and the fan 112, and the second oil guide portion 1112 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 preventing the range hood 1 from reducing the suction efficiency due to excessive oil stains. In this way, the oil guide requirements of the range hood 1 can be met, and the suction efficiency of the range hood 1 can be maintained.

[0039] See also Figure 3-Figure 4In some embodiments, the range hood body 10 further includes a drainage component 15, which is connected to the bottom of the fan box 111. The drainage component 15 may be formed with an oil guide channel 151, and the fan box 111 has an oil discharge hole 111C connected to the second oil guide portion 1112. At the same time, the drainage component 15 is located above the oil cup 30. It can be understood that when the oil from the first oil guide portion 1111 and the fan 112 drips onto the second oil guide portion 1112, the oil guide channel 151 is connected to the oil discharge hole 111C, so that the oil 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 the accumulation of oil in the range hood 1.

[0040] See also Figure 4-Figure 5 Further, in some embodiments, the flue assembly 12 is provided in the drainage assembly 15, so that the flue assembly 12 is connected to the fan box 111 and communicated with the air inlet 111B. The oil guide 151 has a first oil leakage hole 151A located at the rear of the flue assembly 12, that is, the flue assembly 12 has a flue shell 121, and the oil guide 151 is provided on the left and right sides and the rear side of the flue shell 121, so that the oil 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 151 has a first oil leakage hole 151A located at the rear of the flue assembly 12, so that the oil on the oil guide 151 is discharged to the oil cup 30 through the first oil leakage hole 151A, so as to meet the oil guide demand of the range hood 1.

[0041] Furthermore, the number of the first oil leakage holes 151A can be multiple, and the embodiment of the present application does not specifically limit this. The downward projection of the first oil leakage hole 151A falls on the smoke collecting body 20. At this time, the oil cup 30 is connected to the bottom of the smoke collecting body 20. It can be understood that when the oil is discharged to the oil cup 30 through the first oil leakage hole 151A, since the downward projection of the first oil leakage hole 151A falls on the smoke collecting body 20, and the oil cup 30 is connected to the bottom of the smoke collecting body 20, the downward projection of the first oil leakage hole 151A can fall into the oil cup 30, so that the oil cup 30 can receive the oil flowing out through the first oil leakage hole 151A, thereby preventing the oil from dripping to the outside of the range hood 1.

[0042] Based on the flue assembly 12, it is penetrated in the drainage assembly 15. In another embodiment, the oil cup 30 includes a main oil cup and a sub-oil cup, wherein the main oil cup is connected to the bottom of the smoke collecting body 20, so that the main oil cup is used to receive the oil 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 behind the flue assembly 12. It can be understood that the oil on the second oil guide part 1112 flows to the oil guide channel 151 through the oil discharge hole 111C, and on the rear side of the flue assembly 12, the oil guide channel 151 is provided with a first oil leakage hole 151A, so that the oil on the oil guide channel 151 flows to the sub-oil cup through the first oil leakage hole 151A, thereby meeting the oil guide demand of the range hood 1.

[0043] It should be noted that the projection of the auxiliary oil cup along the height direction X of the range hood 1 can fall on the main oil cup, so that the oil stains in the auxiliary oil cup can be discharged to the main oil cup. In this case, the user only needs to deal with the oil stains on the main oil cup. Of course, the projection of the auxiliary oil cup along the height direction X of the range hood 1 may not fall on the main oil cup. In this case, because the range hood 1 uses two oil cups 30, the oil stains are received by the two oil cups 30, and the user does not need to clean the oil cups 30 frequently.

[0044] See also Figure 5 , based on the flue assembly 12 passing through the drainage assembly 15. In some embodiments, the oil guide channel 151 includes two oil guide grooves 151B, the two oil guide grooves 151B are respectively located on the left and right sides of the flue assembly 12, and the two oil guide grooves 151B extend along the front and rear direction of the flue assembly 12. It can be understood that the number of oil drain holes 111C can be two, and the oil drain holes 111C are arranged at intervals on the left and right sides of the flue assembly 12, so that the oil guide groove 151B is connected to the oil drain hole 111C, that is, one oil guide groove 151B is connected to one oil drain hole 111C. When the oil from the first oil guide part 1111 and the fan 112 converge to the second oil guide part 1112, the oil on the second oil guide part 1112 can flow to the oil drain holes 111C arranged at intervals, and the oil guide groove 151B is connected to the oil drain hole 111C, so that the oil flows to the oil guide groove 151B, and the oil is drained to the rear side of the oil guide channel 151 through the oil guide groove 151B, so that the oil is discharged to the oil cup 30.

[0045] See also Figure 6-Figure 7 In some embodiments, the fan box 111 includes a mounting shell and an oil collecting pan, and the mounting shell and the oil collecting pan are both arranged at the bottom of the fan box 111 to receive the oil condensed in the fan cavity 111A, that is, the first oil guide part 1111 can be a mounting shell, and the second oil guide part 1112 can be an oil collecting pan.

[0046] Specifically, the mounting shell includes a connected tuyere wall plate 11111 and a guide plate 11112, the tuyere wall plate 11111 is provided with an air inlet 111B, and the guide plate 11112 is connected between the tuyere wall plate 11111 and the oil receiving pan in the front-to-back direction. It can be understood that the tuyere wall plate 11111 extends in the front-to-back direction, and the air inlet 111B is provided in the middle of the tuyere wall plate 11111, so that oil stains can drip on the surrounding side of the air inlet 111B, and the oil stains can also drip through the air inlet 111B to the smoke collecting body 20. The guide plate 11112 extends along the height direction X, and one end of the guide plate 11112 is connected to the air outlet wall plate 11111, and the other end of the guide plate 11112 is connected to the oil receiving pan, so that the oil stains dripping on the side of the air inlet 111B can flow out of the oil receiving pan through the air outlet wall plate 11111 and the guide plate 11112.

[0047] Furthermore, the tuyere wall plate 11111 is inclined from top to bottom in the direction close to the oil receiving pan, and the bottom surface of the oil receiving pan is inclined from bottom to top in the direction away from the tuyere wall plate 11111. This can make the oil stains flow more smoothly on the tuyere wall plate 11111 and the bottom surface of the oil receiving pan. 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, oil stains can be prevented from remaining on the tuyere wall plate 11111 and the oil receiving pan.

[0048] Furthermore, in some embodiments, there is a first angle between the air vent wall plate 11111 and the horizontal direction Y, and the first angle is not less than 5 degrees and not more than 10 degrees. For example, the first angle can be 5 degrees, 7 degrees, 9 degrees, or 10 degrees. In this way, the oil can flow more smoothly on the air vent wall plate 11111, so that the oil can flow to the oil pan.

[0049] If the first angle is less than 5 degrees, the oil stains will not flow smoothly on the vent wall plate 11111 due to the small first angle, which may easily cause the oil stains to accumulate on the vent wall plate 11111, and then cause the oil stains to accumulate inside the range hood 1, so that the smoke extraction efficiency of the range hood 1 is reduced. If the first angle is greater than 10 degrees, the first angle is large, which may easily cause the inclination angle of the air inlet 111B to the horizontal direction Y to be large, resulting in the connection between the fan box 111 and the flue assembly 12 being inclined. At this time, part of the oil smoke will be blocked by the vent wall plate 11111, so that the smoke extraction efficiency of the range hood 1 is reduced.

[0050] Furthermore, in some embodiments, there is a second angle between the bottom surface of the oil pan and the horizontal direction Y, and the second angle is not less than 5 degrees and not more than 10 degrees. For example, the second angle can be 5 degrees, 7 degrees, 9 degrees, or 10 degrees. In this way, the oil can flow more smoothly on the bottom surface of the oil pan, so that the oil can flow to the oil drain hole 111C.

[0051] If the second angle is less than 5 degrees, the oil does not flow smoothly on the bottom of the oil pan due to the small second angle, which easily leads to the accumulation of oil on the bottom of the oil pan, and then leads to the accumulation of oil inside the range hood 1, so that the extraction efficiency of the range hood 1 is reduced. If the second angle is greater than 10 degrees, the second angle is large, resulting in a larger overall size of the fan box 111, resulting in a larger overall size of the range hood 1, which is inconvenient to produce and install the range hood 1.

[0052] In some embodiments, the fan 112 further includes a volute, the function of which is to guide the gas leaving the impeller to the volute outlet and convert the local dynamic pressure into static pressure. The volute abuts against the guide plate 11112, that is, the volute part abuts against the guide plate 11112. On the one hand, the stability of the connection between the fan 112 and the guide plate 11112 is improved. On the other hand, since the air inlet 111B is arranged on the air outlet wall plate 11111 and the guide plate 11112 is connected to the air outlet wall plate 11111, when the volute part abuts against the guide plate 11112, the flow path of the oil smoke can be shortened, so that the oil smoke can quickly enter the fan chamber 111A.

[0053] See also Figure 5 as well as Figure 8 Furthermore, in some embodiments, the drainage assembly 15 includes an upper wall plate 152 and a surrounding frame 153 .

[0054] Specifically, the upper wall plate 152 is connected to the bottom of the fan box 111, and the upper wall plate 152 is also provided with an oil guide groove 151B, that is, the bottom surface of the oil receiving pan will receive the oil and dirt and flow from the oil drain hole 111C to the oil guide groove 151B.

[0055] The surrounding frame 153 is connected to the circumference of the upper wall plate 152 and extends toward the smoke collecting body 20, and the surrounding frame 153 is located at the rear side of the flue assembly 12 and is provided with an oil collecting channel 153A (such as Figure 4 As shown), that is, on the rear side of the flue assembly 12, the surrounding frame 153 is folded inward to form an oil collecting channel 153A, the first oil leakage hole 151A is connected to the oil collecting channel 153A, and the oil collecting channel 153A is connected to the oil guide groove 151B. At this time, the oil on the oil guide groove 151B flows to the oil collecting channel 153A, and flows to the oil cup 30 through the first oil leakage hole 151A to meet the oil guide demand of the range hood 1.

[0056] See also Figure 8The smoke machine body 10 also includes a lifting drive assembly 13, which is installed in the fan chamber 111A. The flue shell 121 includes a fixed shell 1212 and a lifting shell 1211 which are nested with each other. The fixed shell 1212 is fixedly connected to the fan box 111, and the lifting shell 1211 is connected to the driving end of the lifting drive assembly 13, that is, the fixed end of the lifting drive assembly 13 is connected to the fan box 111, and the driving end of the lifting drive assembly 13 is connected to the lifting shell 1211, and the lifting shell 1211 is also connected to the smoke collecting body 20. Along the height direction X, the lifting drive assembly 13 can drive the smoke collecting body 20 to move relative to the smoke machine body 10, so that The smoke collecting body 20 can be adapted to different stove countertop heights to meet different installation requirements; it can also be adapted to different smoking purposes, thereby improving the quality of smoking. For example, when the oil smoke is large, the smoke collecting body 20 can be driven by the lifting drive assembly 13 to move in the direction close to the stove countertop to reduce the movement path of the oil smoke outside the smoke collecting body 20 and reduce the probability of oil smoke escaping, thereby improving the smoke collecting effect of the smoke collecting body 20 to improve the smoke extraction efficiency of the range hood 1; when the stove countertop needs to be cleaned, the smoke collecting body 20 can be driven by the lifting drive assembly 13 to move in the direction away from the countertop to increase the space above the stove countertop, thereby facilitating the user to clean the stove countertop. Exemplarily, the lifting drive assembly 13 can be, but is not limited to, an electric push rod, a linear motor, a mutually meshing gear rack and a pulley structure. In the embodiment of the present application, the specific form of the lifting drive assembly 13 is not limited.

[0057] See also Figure 2 Furthermore, the upper wall plate 152 and the surrounding frame 153 cooperate to form a receiving cavity 15A, and the smoke collecting body 20 can be received in the receiving cavity 15A, that is, when the user controls the lifting drive assembly 13 to rise, the smoke collecting body 20 has a first state in which at least part of it is located in the receiving cavity 15A; when the user controls the lifting drive assembly 13 to descend, the smoke collecting body 20 has a second state in which it extends out of the receiving cavity 15A. In this way, on the one hand, it is convenient for the user to clean the countertop, and on the other hand, when the range hood 1 is in the second state, the smoke collecting body 20 is received in the receiving cavity 15A, so that the smoke collecting body 20 does not occupy the space under the cabinet.

[0058] It should be noted that the first state may be a state in which the range hood 1 is in operation, and the second state may be a state in which the range hood 1 is not in operation.

[0059] Please continue reading Figure 2 In some embodiments, the smoke collecting body 20 has a smoke collecting cavity 20A, and the smoke collecting body 20 includes a flow guide component 21 and a condensation component 22 .

[0060] The guide component 21 has a smoke inlet 20B connected to the smoke collecting chamber 20A, the condensation component 22 is connected to the guide component 21, the condensation component 22 has a smoke exhaust port 20C connected to the smoke collecting chamber 20A, and the smoke exhaust port 20C is connected to the smoke exhaust channel 12A, so that the oil smoke enters the fan chamber 111A through the smoke inlet 20B, the smoke collecting chamber 20A, the smoke exhaust port 20C, the smoke exhaust channel 12A and the air inlet 111B, and is discharged to the outside through the smoke exhaust pipe (not shown in the figure).

[0061] It can be understood that the guide assembly 21 includes a guide plate 212, a smoke inlet grid 211 and an oil receiving piece 213, wherein the height of the smoke inlet grid 211 gradually decreases in the direction approaching the guide plate 212, so that the bottom end of the smoke inlet grid 211 is connected to the guide plate 212, the guide plate 212 is connected to the oil receiving piece 213, the condensation assembly 22 is connected to the top end of the smoke inlet grid 211, and the condensation assembly 22 has a smoke exhaust port 20C connected to the smoke collecting chamber 20A, that is, the smoke inlet grid 211 has a smoke outlet 20B, and the oil smoke enters the smoke collecting chamber 20A through the smoke outlet 20B and is discharged into the smoke exhaust channel 12A through the smoke exhaust port 20C. When the oil smoke flows into the fan chamber 111A, the temperature of the oil smoke decreases, so that the oil smoke can easily form oil stains on the inner wall of the fan box 111. Since the flue assembly 12 is connected to the condensation assembly 22, the smoke exhaust port 20C is connected to the smoke exhaust channel 12A and the fan chamber 111A. At this time, a part of the oil stains formed on the inner wall of the fan box 111 can drip onto the guide plate 212 through the air inlet 111B, the smoke exhaust channel 12A and the smoke collecting chamber 20A, and the guide plate 212 is provided with an oil outlet hole 212B, so that the oil stains on the guide plate 212 can be guided to the oil receiving piece 213 through the oil outlet hole 212B, and then flow from the oil receiving piece 213 to the oil cup 30. Furthermore, another part of the oil formed on the inner wall of the fan case 111 can drip on the side of the air inlet 111B and be drained to the oil receiving pan through the mounting shell, and then discharged from the oil receiving pan to the oil cup 30 through the oil discharge hole 111C and the oil guide channel 151. At this time, the oil in the range hood 1 is discharged to the oil cup 30 through two oil guide paths to avoid the accumulation of oil in the range hood 1, thereby preventing the range hood 1 from reducing the suction efficiency due to excessive oil. 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 reading Figure 2 Furthermore, in some embodiments, a second oil leakage hole 213A is provided on the oil receiving piece 213, the downward projection of the oil guide channel 151 falls on the oil receiving piece 213, and the downward projection of the second oil leakage hole 213A falls on the oil cup 30, which is connected to the bottom of the smoke collecting body 20.

[0063] Specifically, when the oil cup 30 is connected to the bottom of the smoke collecting body 20, the oil is guided to the oil receiving pan through the air vent wall plate 11111, and then flows from the oil receiving pan to the oil guide groove 151B and the oil collecting channel 153A through the oil drain hole 111C. The oil collecting channel 153A is provided with a first oil leakage hole 151A, and the downward projection of the first oil leakage hole 151A falls on the oil receiving piece 213, while the oil receiving piece 213 is provided with a second oil leakage hole 213A, and the downward projection of the second oil leakage hole 213A falls on the oil cup 30, so that the oil drips from the first oil leakage hole 151A to the oil receiving piece 213, and then drips from the second oil leakage hole 213A to the oil cup 30, so as to prevent the oil from dripping outside the range hood 1.

[0064] The same or similar numbers in the drawings of this embodiment correspond to the same or similar parts; in the description of this application, it should be understood that if the terms "up", "down", "left", "right", etc. indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing this application and simplifying the description, and does not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on this application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0065] The above are only preferred embodiments of the present application and are not intended to limit the present application. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present application should be included in the protection scope of the present application.

Claims

1. A range hood, characterized in that: It includes a smoke machine body, a smoke collector 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 accommodated in the fan box, the fan box comprises a first oil guide portion, a second oil guide portion and an air inlet penetrating the first oil guide portion, the first oil guide portion is located at the rear side of the fan and above the second oil guide portion, and the second oil guide portion is located below the fan; the flue assembly is connected to the fan box and communicated with the air inlet; The smoke collecting body is connected to the flue assembly, and the oil smoke enters the fan box through the smoke collecting body, the flue assembly and the air inlet; The oil stains dripping on the peripheral side of the air inlet are guided to the second oil guide part via the first oil guide part, and the second oil guide part merges the oil stains dripping from the first oil guide part and the fan and discharges to the oil cup.

2. The range hood according to claim 1, characterized in that: The range hood body further comprises a drainage assembly, the drainage assembly is connected to the bottom of the fan box and is located above the oil cup, and the fan box has an oil drain hole connected to the second oil guide portion; The drainage assembly is formed with an oil guide channel, and the second oil guide portion discharges the oil to the oil cup via the oil discharge hole and the oil guide channel.

3. The range hood according to claim 2, characterized in that: The flue assembly is passed through the drainage assembly, the oil guide passage has a first oil leakage hole located behind the flue assembly, the downward projection of the first oil leakage hole falls on the smoke collecting body, and the oil cup is connected to the bottom of the smoke collecting body.

4. The range hood according to claim 2, characterized in that: The flue assembly is arranged through the drainage assembly, and the oil guide passage has a first oil leakage hole located behind the flue 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 collecting body, and the secondary oil cup is connected to the drainage component to receive the oil discharged from the first oil leakage hole.

5. The range hood according to claim 2, characterized in that: The flue assembly is penetrated by the drainage assembly, and the oil guide passage includes two oil guide grooves, which are respectively located on the left and right sides of the flue assembly and extend in the front-to-back direction. Two oil drain holes are arranged at intervals, and one oil guide groove is connected to each oil drain hole.

6. The range hood according to claim 5, characterized in that: The drainage assembly includes an upper wall plate and a surrounding frame, wherein the upper wall plate is connected to the bottom of the fan box and is provided with the oil drainage groove; The surrounding frame is connected to the peripheral side of the upper wall plate and extends toward the direction of the smoke collecting body, wherein an oil collecting channel is arranged inside the rear part of the surrounding frame located at the flue assembly, and the surrounding frame is provided with a first oil leakage hole connected to the oil collecting channel, and the oil collecting channel is connected to the oil guide groove and the first oil leakage hole.

7. The range hood according to claim 6, characterized in that: The smoke collector body also includes a lifting drive assembly installed on the fan box, and the flue assembly includes a fixed shell and a lifting shell that are nested with each other, the fixed shell is fixedly connected to the fan box, and the lifting shell is connected to the driving end of the lifting drive assembly and connected to the smoke collector body; The upper wall plate and the surrounding frame cooperate to form a receiving cavity. Under the lifting and driving of the lifting and driving assembly, the smoke collecting body has a first state in which it is at least partially located in the receiving cavity, and a second state in which it extends out of the receiving cavity.

8. The range hood according to any one of claims 1 to 7, characterized in that: The fan box includes a mounting shell and an oil receiving pan at the bottom, the mounting shell includes a tuyere wall plate and a guide plate connected to each other, the tuyere wall plate is provided with the air inlet, and the guide plate is connected between the tuyere wall plate and the oil receiving pan in the front-to-back direction; The tuyere wall plate is tilted from top to bottom in a direction close to the oil receiving pan, and the bottom surface of the oil receiving pan is tilted from bottom to top in a direction away from the tuyere wall plate; Wherein, the mounting shell constitutes the first oil guide portion, and the oil receiving pan constitutes the second oil guide portion.

9. The range hood according to claim 8, characterized in that: There is a first angle between the tuyere wall plate and the horizontal direction, and the first angle is not less than 5 degrees and not more than 10 degrees; and / or, A second angle is formed between the bottom surface of the oil receiving pan and the horizontal direction, and the second angle is not less than 5 degrees and not more than 10 degrees.

10. The range hood according to claim 8, characterized in that: The fan comprises a volute, and the volute abuts against the guide plate.

11. The range hood according to any one of claims 2 to 7, characterized in that: The smoke collecting body comprises: A guide assembly, comprising a guide plate, a smoke inlet grid and an oil receiving member, wherein the height of the smoke inlet grid gradually decreases in a direction close to the guide plate, so that the bottom end of the smoke inlet grid is connected to the guide plate, and the guide plate is connected to the oil receiving member; and A condensation assembly connected to the top of the smoke inlet grid; The flue assembly is connected to the condensation assembly so that oil stains drip onto the guide plate through the flue assembly and the condensation assembly, and are directed from the guide plate to the oil receiving piece.

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

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