CN113048521A

CN113048521A - Smoke exhaust ventilator

Info

Publication number: CN113048521A
Application number: CN201911364005.1A
Authority: CN
Inventors: 谢川川; 胡斯特
Original assignee: Midea Group Co Ltd; Guangdong Midea White Goods Technology Innovation Center Co Ltd
Current assignee: Midea Group Co Ltd; Guangdong Midea White Goods Technology Innovation Center Co Ltd
Priority date: 2019-12-26
Filing date: 2019-12-26
Publication date: 2021-06-29
Anticipated expiration: 2039-12-26
Also published as: CN113048521B

Abstract

The invention provides a range hood, comprising: a frame; the collection cigarette subassembly locates one side of frame, and the collection cigarette subassembly specifically includes: a main suction structure; locate the main at least one side of inhaling the structure, and main inhale and be equipped with the drainage plate between structure and the efflux subassembly, the efflux subassembly can drive the fluid and form the efflux along the drainage plate flow, and fluid and oil smoke can outwards be discharged through main structure of inhaling. According to the technical scheme, the main suction structure, the jet flow assembly and the drainage plate are matched, so that the oil smoke suction effect can be greatly improved, and the occurrence of smoke leakage and smoke leakage can be reduced.

Description

Smoke exhaust ventilator

Technical Field

The invention relates to the technical field of cooking equipment, in particular to a range hood.

Background

In order to reduce the oil smoke and fill up the interior space at the culinary art in-process, range hood has become the household electrical apparatus that present family is indispensable with its peculiar outside exhaust function of oil smoke that will cook in-process production, and among the prior art, range hood adopts the ceiling-mounted range hood usually, but the ceiling-mounted range hood is far away from the distance of pan, the oil smoke flows towards range hood under range hood's wind-force effect, because the distance is far away, can lead to appearing running the phenomenon emergence of cigarette and leaking the cigarette because of suction is not enough at the shrink in-process, and if adopt the mode that improves amount of wind or wind pressure, solve and run the phenomenon of cigarette and leaking the cigarette, then can noise and power increase at the operation in-process, influence user's normal use.

Disclosure of Invention

The present invention is directed to solving at least one of the problems of the prior art or the related art.

In view of the above, an object of the present invention is to provide a range hood.

In order to achieve at least one of the above objects, according to the technical solution of the present invention, there is provided a range hood, including: a frame; the collection cigarette subassembly locates one side of frame, and the collection cigarette subassembly specifically includes: a main suction structure; and the jet flow assembly is arranged on at least one side of the main suction structure, a drainage plate is arranged between the main suction structure and the jet flow assembly, the jet flow assembly can drive fluid to form jet flow flowing along the drainage plate, and the fluid and the oil smoke can be discharged outwards through the main suction structure.

According to the range hood provided by the invention, the smoke collection assembly is arranged on one side of the rack, so that oil smoke or air on one side of the smoke collection assembly, which is far away from the rack, can be sucked through the smoke collection assembly and discharged outwards.

The oil smoke that needs the emphasis is through setting up the drainage plate, with being connected between efflux subassembly and the main structure of inhaling and forming complete oil absorption cigarette route, the oil smoke that is located near the main structure of inhaling can directly realize adsorbing under the effect of main structure of inhaling, and the oil smoke far away from the main structure of inhaling can flow to the main structure of inhaling down in the combined action of drainage plate and efflux subassembly, greatly improves oil absorption cigarette effect, and the condition that the reduction ran the cigarette and leak the cigarette takes place.

Wherein, the fluidic component can locate one side or both sides of the main structure of inhaling, and the fluidic component can locate the left side and/or the right side of the main structure of inhaling on the horizontal direction, or the fluidic component can locate the upside and/or the downside of the main structure of inhaling on the vertical direction.

It should be noted that, the position that the drainage plate set up only need with main structure and the efflux subassembly of inhaling link to each other can, furtherly, locate the one side of keeping away from the user and carrying out the culinary art operation with the drainage plate, promptly, the culinary art space that the collection cigarette subassembly encloses, when fixing range hood in the kitchen, the back wall setting is pressed close to the drainage plate.

Further, the smoke collecting assembly can be arranged at the bottom side of the frame, namely in the vertical direction, the frame is arranged above the smoke collecting assembly.

It will be appreciated that the combination of the flow guide plate and fluidic assembly can produce a coanda effect.

In the above technical solution, the fluidic assembly specifically includes: the jet flow machine shell is provided with an air inlet and an air outlet; the jet flow wind wheel is arranged in the jet flow machine shell; wherein, the air outlet of efflux casing links to each other with the one end of drainage plate.

In this technical scheme, the efflux subassembly is when inhaling the structure to main and producing the efflux, the combined action through efflux casing and efflux wind wheel realizes, specifically, set up air intake and air outlet on the efflux casing, and be equipped with the efflux wind wheel in the efflux casing, the air can flow in by the air intake under the effect of efflux wind wheel, outwards flow out by the air outlet again, because the air outlet links to each other with the one end of drainage plate, so can inhale the structure in order to form the negative pressure through the main structure of inhaling of drainage plate flow direction by the outside air that flows out of air outlet, drive oil smoke one with the main structure of inhaling of flowing into.

Wherein, the jet flow wind wheel can be selected as a cross flow wind wheel, a centrifugal wind wheel or an axial wind wheel.

In the above technical scheme, the air inlet and the air outlet are arranged on two opposite sides of the jet flow machine shell.

In the technical scheme, the air inlet and the air outlet are respectively arranged on two opposite sides of the jet flow machine shell, so that the interference between the inlet air and the outlet air of the wind wheel during operation can be reduced.

Furthermore, the air outlet is arranged on one side facing the main suction structure, and the air inlet is arranged on one side far away from the main suction structure.

In the above technical solution, the jet casing includes: the volute plate is provided with an air inlet; the volute plate is arranged on one side of the volute plate, the volute plate and the volute plate are formed into a fan cavity for accommodating the jet flow wind wheel, and the drainage plate is connected with the air outlet end of the volute plate.

In the technical scheme, the jet flow casing is formed by surrounding a volute casing plate and a volute tongue plate, air can flow into the jet flow wind wheel from the air inlet by arranging the air inlet on the volute casing plate, and jet flow can be formed when the air is ejected outwards.

Wherein, the air outlet end of the volute tongue plate is the end which forms the volute tongue plate and is used for forming the air outlet.

The exhaust end of the drainage plate is connected with the exhaust end of the volute tongue plate, so that when air is exhausted outwards from the jet wind wheel, jet flow can be formed on the surface of the drainage plate under the action of the coanda effect, and the oil smoke adsorption is realized under the action of negative pressure.

In the technical scheme, at least part of the air guide surface of the drainage plate is arc-shaped, the other end of the drainage plate is connected to the main suction structure, wherein the fluid can be driven to flow to the main suction structure along the air guide surface of the drainage plate through the jet wind wheel, and the oil smoke can flow to the main suction structure under the negative pressure formed by the flow of the fluid.

In this technical scheme, personally submit the arc through the partial wind-guiding of injecing the drainage plate, at the reducible windage of air flow in-process, do benefit to the flow of air on the drainage plate in order to form the efflux, can change the air flow path to a certain extent through curved wind-guiding face simultaneously, play the effect of direction promptly, when the air outlet is unable direct corresponding with the air intake of main suction structure, can be better through curved wind-guiding face with the air transfer.

It can be understood that, because the space that the user cooks is carried out to one side that the wind guide surface is located in the culinary art process, so through the limited of curved wind guide surface, will compress owing to the depth direction size that fan self occupied and reduce to user's culinary art space can be increased.

Wherein, the wind-guiding face of drainage plate is the surface that the air that flows through by the air outlet flows through promptly.

The drainage plate can be all the wind guide surfaces arc, or the wind guide surfaces of the part close to the air outlet are arc, and the wind guide surfaces of other arbitrary parts can also be arc.

In the above technical solution, the method further comprises: and at least part of the air exhaust channel is arranged in the rack and is communicated with the main suction structure, so that the fluid in the main suction structure can be exhausted outwards through the air exhaust channel.

In the technical scheme, an exhaust channel is arranged in the machine frame to provide an outward exhaust path for fluid sucked by the main suction structure, specifically, the exhaust channel is communicated with the main suction structure, air and oil smoke are sucked into the main suction structure under the combined action of the jet flow assembly and the main suction structure, and then the air-smoke mixture in the main suction structure is exhausted outwards together through the exhaust channel.

The fluid sucked by the main suction structure at least comprises air and oil smoke, and the air and the oil smoke are mixed in the main suction structure to form an air-smoke mixture.

In the above technical solution, the method includes: the supplementary subassembly of inhaling locates the frame towards the one side of collection cigarette subassembly, and the air outlet of assisting the subassembly of inhaling is linked together with the passageway of airing exhaust, and wherein, the one end of assisting the subassembly of inhaling links to each other with the one end of collection cigarette subassembly, and assists and inhale and form the culinary art space between subassembly and the collection cigarette subassembly, and the supplementary subassembly of inhaling can be close to in the culinary art space and assist the partial fluid absorption of inhaling the subassembly.

In the technical scheme, the auxiliary suction assembly communicated with the exhaust channel is arranged on one side of the rack facing the smoke collection assembly, so that oil smoke far away from the drainage plate can be sucked into the exhaust channel through the auxiliary suction assembly, the space for sucking the oil smoke can be effectively increased, and the auxiliary suction assembly can adsorb partial fluid close to the auxiliary suction assembly in the cooking space so as to reduce the possibility of smoke leakage and smoke leakage.

It should be noted that, the auxiliary suction assembly is connected with the smoke collection assembly, and a cooking space is formed between the auxiliary suction assembly and the smoke collection assembly, that is, the auxiliary suction assembly and the smoke collection assembly form a certain angle, specifically, an acute angle, an obtuse angle or a support leg is formed between the auxiliary suction assembly and the smoke collection assembly, and the auxiliary suction assembly and the smoke collection assembly are a cooking space for cooking and absorbing oil smoke for a user within an angle range.

In the above technical solution, the auxiliary suction assembly specifically includes: the smoke collection shell is communicated with the exhaust channel; the auxiliary suction flow guide plate is arranged on one side, facing the cooking space, of the smoke collection shell; and the auxiliary suction fan is arranged in the smoke collection shell, the air inlet of the auxiliary suction fan is arranged corresponding to the auxiliary suction flow guide plate, and the air outlet of the auxiliary suction fan is communicated with the smoke collection shell.

In this technical scheme, it is main through the collection cigarette casing to assist the absorption of subassembly to the oil smoke, assist inhaling the deflector and assist the suction fan combined action and realize assisting, specifically, collection cigarette casing and exhaust channel are linked together, set up in the collection cigarette casing and assist the suction fan, will assist the air intake that inhales the deflector and assist the suction fan simultaneously and correspond the setting for some oil smoke in the culinary art space leads to assisting the suction fan through assisting inhaling the deflector and assisting under the suction effect of suction fan, arrange the oil smoke in the collection cigarette casing through the air outlet afterwards, in order to do benefit to follow-up centralized processing to the oil smoke.

Furthermore, the surface of the auxiliary suction guide plate facing to one side of the cooking space, that is, the air guide surface of the auxiliary suction guide plate may be a cambered surface or a plane.

In the technical scheme, the main suction structure is communicated with the smoke collection shell, and fluid in the main suction structure can flow to the exhaust channel through the smoke collection shell.

In this technical scheme, through the intercommunication of injecing main structure and collection cigarette casing of inhaling, the passageway of airing exhaust can outwards discharge the oil smoke that the structure adsorbed is inhaled with the owner and the supplementary oil smoke that inhales the subassembly is together outwards discharged this moment, outwards discharges the adsorbed oil smoke through a passageway, can effectively reduce the outside quantity and the space that discharge fume of range hood and occupy.

In the above technical scheme, assist the suction fan and locate the collection cigarette casing and keep away from the one end of collection cigarette subassembly, and assist the air intake of suction fan and towards culinary art space.

In this technical scheme, locate the one end that collection cigarette subassembly was kept away from to collection cigarette casing through will assisting the suction fan, can be so that the oil smoke in the culinary art space is close to in one side of collection cigarette subassembly flows into the main structure of inhaling through the drainage plate, and one side of keeping away from collection cigarette subassembly then can inhale to collection cigarette casing in through assisting inhaling the subassembly to the whole adsorption efficiency to the oil smoke in the culinary art space of reinforcing range hood.

In addition, through the air intake of injecing the auxiliary suction fan towards culinary art space, the suction of accessible auxiliary suction fan self inhales the oil smoke of keeping away from one side of collection cigarette subassembly in with culinary art space to the collection cigarette casing in.

In the above technical solution, in a direction from the smoke collection assembly to a position far away from the cooking space, the flow guide surface of the auxiliary suction flow guide plate gradually inclines upward.

In this technical scheme, through the slope shape of injecing the water conservancy diversion face of assisting inhaling the guide plate, can improve the guide plate to the water conservancy diversion effect of cooking space interior oil smoke, can guide the oil smoke to assist the suction fan to flow gradually at the in-process that upwards flows through the guide plate of slope promptly, under the suction effect of assisting the suction fan, strengthen flow efficiency simultaneously to promote the top and assist the adsorption efficiency of inhaling the subassembly to cooking space interior oil smoke.

In the above technical scheme, the main suction opening of the main suction structure faces the jet assembly.

In this technical scheme, through the main suction inlet that will mainly inhale the structure towards the efflux subassembly setting, can improve the efflux that the efflux subassembly sent along the drainage board and flow to the flow efficiency that the structure was inhaled to the main, particularly, because main suction inlet is towards the efflux subassembly, main suction inlet sets up with the efflux subassembly relatively promptly for the efflux can directly flow to the main structure of inhaling, reduces unnecessary negative pressure loss.

The main suction opening can be arranged along the height direction, so that the oil smoke can be adsorbed by the main suction structure when rising to any height.

In above-mentioned technical scheme, the quantity of efflux subassembly is two, and the both sides of structure are inhaled to main being located respectively to two efflux subassemblies, and one side that the structure is close to every efflux subassembly is inhaled to main is equipped with main suction inlet, and every efflux subassembly can form the efflux to main suction inlet flow.

In this technical scheme, inhale the both sides of structure at the owner and be equipped with a efflux subassembly respectively, the main suction inlet of inhaling the structure of owner sets up towards two efflux subassemblies respectively to for mainly inhaling the structure in the middle of forming, both sides are the collection cigarette subassembly of efflux subassembly, because every efflux subassembly homoenergetic forms the efflux, can inhale the main structure of inhaling respectively from two directions with the oil smoke in the culinary art space, increase range hood's effective absorption space.

Furthermore, the main suction structure is arranged in the middle, and the jet flow components are respectively arranged on the left side and the right side of the main suction structure.

Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention.

Drawings

Fig. 1 shows a schematic structural diagram of a range hood according to an embodiment of the present invention;

fig. 2 shows a schematic structural diagram of a range hood according to an embodiment of the present invention;

fig. 3 is a schematic structural diagram illustrating a smoke collection assembly in the range hood according to an embodiment of the invention;

FIG. 4 shows a schematic structural diagram of a fluidic assembly according to one embodiment of the present invention;

fig. 5 shows a schematic structural diagram of a range hood according to an embodiment of the present invention.

Wherein, the correspondence between the reference numbers and the part names in fig. 1 to 5 is:

10 machine frame, 12 exhaust channels, 20 smoke collecting component, 22 main suction structure, 222 main suction port, 24 jet flow component, 242 jet flow machine shell, 2422 volute plate, 2424 volute tongue plate, 2426 air inlet, 2428 air outlet, 244 jet flow wind wheel, 26 flow guide plate, 30 auxiliary suction component, 32 smoke collecting shell, 34 auxiliary suction flow guide plate and 36 auxiliary suction fan.

Detailed Description

So that the manner in which the above recited objects, features and advantages of the present invention can be understood in detail, a more particular description of the invention, briefly summarized above, may be had by reference to the embodiments thereof which are illustrated in the appended drawings. It should be noted that the embodiments and features of the embodiments of the present application may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention, however, the present invention may be practiced in other ways than those specifically described herein, and therefore the scope of the present invention is not limited by the specific embodiments disclosed below.

Some embodiments according to the invention are described below with reference to fig. 1 to 5.

Example 1

As shown in fig. 1, according to an embodiment of the present invention, there is provided a range hood, including: the cooking fume exhausting device comprises a rack 10 used for exhausting fume outwards and a fume collecting assembly 20 arranged on one side of the rack 10, wherein the fume collecting assembly 20 is used for adsorbing the fume and is realized through a main suction structure 22 and a jet flow assembly 24, the jet flow assembly 24 can be used for emitting jet flow outwards to form negative pressure, so that the fume generated by a user in cooking is passively adsorbed to the position near the main suction structure 22 under the action of the negative pressure, and the fume nearby can be sucked into the main suction structure 22 under the action of the main suction structure 22 at the moment so as to realize the effect of sucking the fume.

By disposing the jet assembly 24 on at least one side of the main suction structure 22, the jet assembly 24 can drive the fluid to form a jet flowing along the flow guide plate 26, and the fluid and the oil smoke can be discharged outwards through the main suction structure 22.

As shown in fig. 2, further, a flow guide plate 26 is further provided, the jet assembly 24 can drive the fluid to form a jet flowing to the main suction structure 22 along the flow guide plate 26 arranged between the main suction structure 22 and the jet assembly 24, and the oil smoke can be discharged outwards through the main suction structure 22 under the action of the jet. Through setting up drainage plate 26, with being connected between efflux subassembly 24 and the main structure 22 of inhaling and form complete oil absorption cigarette route, be located the main oil smoke of inhaling near structure 22 and can directly realize adsorbing under the effect of main structure 22 of inhaling, and the distance is main to inhale structure 22 oil smoke far away and can flow to the main structure 22 of inhaling under drainage plate 26 and efflux subassembly 24's combined action in, greatly improve the oil absorption cigarette effect, the condition that reduces the running cigarette and leak the cigarette takes place.

Further, the smoke collection assembly 20 may be provided at the bottom side of the frame 10, i.e., in the vertical direction, and the frame 10 is provided above the smoke collection assembly 20.

In addition, under the combined action of the drainage plate 26 and the jet assembly 24, the coanda effect can be generated, the flow of oil smoke can be better guided, and the adsorption is realized.

More specifically, frame 10 and collection cigarette subassembly 20 are the vertical orientation setting, and collection cigarette subassembly 20 locates under frame 10.

As shown in fig. 3 and 4, in one embodiment, the jet assembly 24 is composed of a jet casing 242 and a jet wind wheel 244, the jet casing 242 is used for protecting the jet wind wheel 244, an air inlet 2426 and an air outlet 2428 are arranged on the jet casing 242, and air can flow in from the air inlet 2426 and then flow out from the air outlet 2428 under the action of the jet wind wheel 244.

Specifically, since the air outlet 2428 is connected to one end of the flow guiding plate 26, the air flowing out from the air outlet 2428 can flow to the main suction structure 22 through the flow guiding plate 26 to form a negative pressure, so as to drive the oil smoke to flow into the main suction structure 22.

In one particular embodiment, jet vanes 244 are selected to be cross-flow vanes.

In another embodiment, jet rotor 244 is selected to be a centrifugal rotor.

In another embodiment, jet rotor 244 is selected to be an axial rotor.

Further, an air inlet 2426 and an air outlet 2428 are provided on opposite sides of the jet housing 242. By providing the air inlet 2426 and the air outlet 2428 on opposite sides of the jet casing 242, interference between wind entering and exiting the wind wheel during operation can be reduced.

Further, the air outlet 2428 is disposed on a side facing the main suction structure 22, and the air inlet 2426 is disposed on a side away from the main suction structure 22.

Further, the jet casing 242 is formed by enclosing a volute plate 2422 and a volute tongue plate 2424, by providing an air inlet 2426 on the volute plate 2422, air can flow into the jet wind wheel 244 from the air inlet 2426, and a jet flow can be formed when the air is emitted outward, it should be noted that the volute plate 2422 and the volute tongue plate 2424 are configured into a fan cavity, that is, a part of the volute plate 2422 serves as a volute, and a part of the volute tongue plate 2424 serves as a volute tongue, so that a fan cavity adapted to the jet wind wheel 244 is formed, wherein an air outlet end of the volute tongue plate 2424 is an end for forming the volute tongue plate 2424 and forming the air outlet 2428.

It should be emphasized that, by defining the connection between the flow guide plate 26 and the air outlet end of the volute tongue plate 2424, when air is discharged outwards by the jet wind wheel 244, a jet flow can be formed on the surface of the flow guide plate 26 under the coanda effect, and thus the adsorption of oil smoke is realized under the negative pressure.

As shown in fig. 4, the wind guide surface of part of the flow guide plate 26 is arc-shaped, so that the wind resistance can be reduced in the air flowing process, the air flowing on the flow guide plate 26 can be facilitated to form jet flow, meanwhile, the air flow path can be changed to a certain extent through the arc-shaped wind guide surface, namely, the guiding effect is achieved, and when the air outlet 2428 and the main suction opening 222 of the main suction structure 22 cannot directly correspond to each other, namely, when deviation exists, the air can be better transferred through the arc-shaped wind guide surface.

In addition, by defining the other end of the flow guide plate 26 to be connected to the main suction structure 22, the fluid can be driven to flow along the air guide surface of the flow guide plate 26 directly to the main suction structure 22 through the jet wind wheel 244, and the oil smoke can flow to the main suction structure 22 under the negative pressure formed by the fluid flow.

The air guide surface of the drainage plate 26 is a surface through which air flowing out of the air outlet 2428 flows, and may be an arc-shaped air guide surface of a part close to the air outlet 2428, or an arc-shaped air guide surface of any other part.

In another embodiment, all of the air guide surfaces of the flow guide plate 26 may be arc-shaped.

As shown in fig. 1, on the basis of the above-mentioned embodiment, the exhaust channel 12 communicated with the main suction structure 22 is provided in the rack 10, so that the exhaust channel 12 is provided in the rack 10 to provide a path for the fluid sucked by the main suction structure 22 to be discharged outwards, specifically, air and soot are sucked into the main suction structure 22 by the cooperation of the jet assembly 24 and the main suction structure 22, and the mixture of the air and the soot in the main suction structure 22 is discharged outwards together through the exhaust channel 12.

The fluid sucked by the main suction structure 22 at least includes air and oil smoke, and the mixture in the main suction structure 22 can form an air-smoke mixture.

As shown in fig. 5, an auxiliary suction assembly 30 is disposed on one side of the frame 10 facing the smoke collecting assembly 20, an air outlet of the auxiliary suction assembly 30 is communicated with the air exhaust channel 12, and the oil smoke far away from the drainage plate 26 can be sucked into the air exhaust channel 12 through the auxiliary suction assembly 30, so that the space for sucking the oil smoke can be effectively increased, and the possibility of oil smoke leakage and leakage can be reduced.

In addition, one end of the auxiliary smoking assembly 30 is connected to one end of the smoke collection assembly 20, and a cooking space is formed between the auxiliary smoking assembly 30 and the smoke collection assembly 20.

It should be noted that, the auxiliary suction assembly 30 is connected to the smoke collection assembly 20, and a cooking space is formed between the two assemblies, that is, the auxiliary suction assembly 30 and the smoke collection assembly 20 form a certain angle, specifically, an acute angle, an obtuse angle or a support leg is formed between the two assemblies, and the cooking space for the user to cook and absorb the oil smoke is defined within the angle range.

Further, the auxiliary suction assembly 30 is composed of a smoke collection housing 32, an auxiliary suction guide plate 34 and an auxiliary suction fan 36 arranged in the smoke collection housing 32, so that the auxiliary suction assembly 30 can perform auxiliary suction on the oil smoke, wherein the smoke collection housing 32 is also communicated with the exhaust channel 12, an air inlet of the auxiliary suction fan 36 is arranged corresponding to the auxiliary suction guide plate 34, and an air outlet of the auxiliary suction fan 36 is communicated with the smoke collection housing 32, so that part of the oil smoke in the cooking space is guided to the auxiliary suction fan 36 under the suction effect of the auxiliary suction guide plate 34 and the auxiliary suction fan 36, and then the oil smoke is discharged into the smoke collection housing 32 through the air outlet, thereby facilitating the subsequent centralized treatment of the oil smoke.

Further, the surface of the auxiliary suction flow guide plate 34 facing the cooking space, that is, the air guide surface of the auxiliary suction flow guide plate 34 may be a curved surface or a flat surface.

In one embodiment, the main suction structure 22 is communicated with the smoke collecting housing 32, and the exhaust channel 12 can discharge the oil smoke absorbed by the main suction structure 22 and the oil smoke absorbed by the auxiliary suction assembly 30 outwards together, and discharge the absorbed oil smoke outwards through one channel, thereby effectively reducing the number of channels and the occupied space of the range hood for discharging the smoke outwards.

More specifically, the inside of the main suction structure 22 is formed with a tee joint connected to the smoke collection housing 32 and the discharge air duct 12, respectively.

Furthermore, the auxiliary suction fan 36 is disposed at the front end of the smoke collection housing 32, i.e. at a side close to the user, so that the oil smoke at the rear side in the cooking space can flow into the main suction structure 22 through the drainage plate 26, and the oil smoke at the front side can be sucked into the smoke collection housing 32 through the auxiliary suction assembly 30, so as to enhance the overall adsorption capacity of the range hood on the oil smoke in the cooking space.

In one embodiment, the air inlet of the auxiliary suction fan 36 is defined to face the cooking space, and the oil smoke on the side of the cooking space far away from the smoke collection assembly 20 can be sucked into the smoke collection housing 32 by the suction force of the auxiliary suction fan 36 itself.

In the above embodiment, the flow guide surface of the auxiliary suction flow guide plate 34 is gradually inclined upward in the horizontal plane direction from the inside to the outside. The guide plate through the slope can guide the oil smoke to flow to assisting the suction fan 36 gradually in the process of flowing upwards, and meanwhile, under the action of the suction force of assisting the suction fan 36, the flowing efficiency is enhanced, so that the adsorption capacity of the top auxiliary suction assembly 30 on the oil smoke in the cooking space is improved.

In any of the above embodiments, the main suction opening 222 of the main suction structure 22 faces the jet assembly 24, which can improve the flow efficiency of the jet flow emitted by the jet assembly 24 along the flow guide plate 26 to the main suction structure 22, and specifically, since the main suction opening 222 faces the jet assembly 24, that is, the main suction opening 222 is disposed opposite to the jet assembly 24, the jet flow can directly flow to the main suction structure 22, thereby reducing unnecessary negative pressure loss.

As shown in fig. 1 and fig. 2, a range hood of a specific embodiment is shown, which includes a frame 10 and an L-shaped air duct disposed below the frame 10, the air duct of the range hood is composed of an auxiliary suction assembly 30 and a smoke collection assembly 20, i.e., an L-shape is formed between the auxiliary suction assembly 30 and the smoke collection assembly 20, in addition, a main suction structure 22 is disposed at the center, two jet assemblies 24 are respectively disposed at the left and right sides of the main suction structure 22, main suction ports 222 corresponding to the jet assemblies 24 are also disposed at the left and right sides of the main suction structure 22, the main suction ports 222 are disposed along the height direction, and each jet assembly can form a jet flowing to the main suction ports 222.

The auxiliary suction assembly 30 is arranged above the range hood, the smoke collection assembly 20 is arranged behind the range hood, the auxiliary suction assembly 30 arranged above the auxiliary suction assembly can form a large negative pressure area in front of the range hood, and residual oil smoke which is not sucked by the smoke collection assembly 20 can be guided to the front edge along the flow guide surface of the auxiliary suction flow guide plate 34 and then is sucked by the cross-flow fan in the auxiliary suction assembly 30 and is discharged outwards.

According to the range hood provided by the invention, the main suction structure, the jet flow assembly and the drainage plate are matched, so that the oil smoke suction effect can be greatly improved, and the occurrence of smoke leakage and smoke leakage can be reduced.

In the present invention, the terms "first", "second", and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance; the term "plurality" means two or more unless expressly limited otherwise. The terms "mounted," "connected," "fixed," and the like are to be construed broadly, and for example, "connected" may be a fixed connection, a removable connection, or an integral connection; "coupled" may be direct or indirect through an intermediary. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.

In the description of the present invention, it is to be understood that the terms "upper", "lower", "left", "right", "front", "rear", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or unit must have a specific direction, be constructed in a specific orientation, and be operated, and thus, should not be construed as limiting the present invention.

In the description herein, the description of the terms "one embodiment," "some embodiments," "specific embodiments," etc., means that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

The above is only a preferred embodiment of the present invention, and is not intended to limit the present invention, and various modifications and changes will occur to those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

1. A range hood, comprising:

a frame;

the collection cigarette subassembly is located one side of frame, just the collection cigarette subassembly includes:

a main suction structure; and

the jet assembly is arranged on at least one side of the main suction structure, a drainage plate is arranged between the main suction structure and the jet assembly, the jet assembly can drive fluid to form jet flow flowing along the drainage plate, and the fluid and oil smoke can be discharged outwards through the main suction structure.

2. The range hood of claim 1, wherein the jet assembly comprises:

the jet flow machine shell is provided with an air inlet and an air outlet;

the jet flow wind wheel is arranged in the jet flow machine shell;

and the air outlet of the jet flow machine shell is connected with one end of the drainage plate.

3. The range hood of claim 2, wherein the air inlet and the air outlet are disposed on opposite sides of the jet housing.

4. The range hood of claim 2, wherein the jet housing comprises:

the volute casing plate is provided with the air inlet;

the volute tongue plate is arranged on one side of the volute plate, the volute plate and the volute tongue plate are constructed into a fan cavity for accommodating the jet flow wind wheel,

wherein, the drainage plate is connected with the air outlet end of the volute tongue plate.

5. The range hood of claim 2, wherein at least a portion of the air guide surface of the flow guide plate is curved, and the other end of the flow guide plate is connected to the main suction structure,

the jet flow wind wheel can drive fluid to flow to the main suction structure along the wind guide surface of the drainage plate, and oil smoke can flow to the main suction structure under the negative pressure formed by the fluid flow.

6. The range hood of claim 1, further comprising:

and at least part of the air exhaust channel is arranged in the rack and is communicated with the main suction structure, so that the fluid in the main suction structure can be exhausted outwards through the air exhaust channel.

7. The range hood of claim 6, comprising:

an auxiliary suction component which is arranged on one side of the machine frame facing the smoke collecting component, and the air outlet of the auxiliary suction component is communicated with the air exhaust channel,

wherein, assist the one end of inhaling the subassembly with the one end of collection cigarette subassembly links to each other, just assist inhale the subassembly with form the culinary art space between the collection cigarette subassembly, assist and inhale the subassembly can with be close to in the culinary art space assist the partial fluid adsorption of inhaling the subassembly.

8. The range hood of claim 7, wherein the auxiliary suction assembly specifically comprises:

the smoke collection shell is communicated with the exhaust channel;

the auxiliary suction diversion plate is arranged on one side, facing the cooking space, of the smoke collection shell;

and the auxiliary suction fan is arranged in the smoke collection shell, the air inlet of the auxiliary suction fan is arranged corresponding to the auxiliary suction flow guide plate, and the air outlet of the auxiliary suction fan is communicated with the smoke collection shell.

9. The range hood of claim 8,

the main suction structure is communicated with the smoke collection shell, and fluid in the main suction structure can flow to the exhaust channel through the smoke collection shell.

10. The range hood of claim 8, wherein the auxiliary suction fan is disposed at an end of the smoke collection housing away from the smoke collection assembly, and an air inlet of the auxiliary suction fan faces the cooking space.

11. The range hood of claim 10, wherein the flow guiding surface of the auxiliary suction flow guiding plate is inclined gradually upward in a direction from the smoke collecting assembly to a position away from the cooking space.

12. The range hood of any one of claims 1 to 11, wherein the primary suction opening of the primary suction structure faces the jet assembly.

13. The range hood of claim 12, wherein the number of the jet assemblies is two, two of the jet assemblies are respectively disposed on two sides of the main suction structure, one side of the main suction structure adjacent to each jet assembly is provided with the main suction port, and each jet assembly is capable of forming a jet flowing toward the main suction port.