CN215723458U

CN215723458U - Smoke exhaust ventilator

Info

Publication number: CN215723458U
Application number: CN202122338709.0U
Authority: CN
Inventors: 董永森
Original assignee: Hisense Guangdong Kitchen and Bath System Co Ltd
Current assignee: Hisense Guangdong Kitchen and Bath System Co Ltd
Priority date: 2021-09-24
Filing date: 2021-09-24
Publication date: 2022-02-01
Anticipated expiration: 2031-09-24

Abstract

The utility model discloses a range hood, and relates to the technical field of range hoods. The utility model is a utility model which is invented for the purpose that the suction force of the desorption range hood is poor and the use performance of the range hood is influenced. The range hood comprises a shell, a volute, an air channel and a fan. The shell is provided with a shell air inlet and a shell air outlet. The volute is arranged in the shell and is provided with a volute air inlet and a volute air outlet. The volute air outlet is communicated with the shell air outlet. The air duct is arranged in the shell, one end of the air duct is communicated with the volute air inlet, and the end of the air duct far away from the volute is communicated with the shell air inlet. The fan is arranged in the volute. The range hood provided by the utility model is used for sucking oil smoke generated in the cooking process and discharging the oil smoke into a public flue.

Description

Smoke exhaust ventilator

Technical Field

The utility model relates to the technical field of range hoods, in particular to a range hood.

Background

A range hood is generally used to absorb oil smoke generated during cooking and discharge the oil smoke into a common flue. The inventor finds that at least the following problems exist in the prior art:

the range hood is limited in suction force to the oil smoke, so that the oil smoke is easy to diffuse around the range hood, the use performance of the range hood is reduced, and the user experience is influenced.

SUMMERY OF THE UTILITY MODEL

The embodiment of the utility model provides a range hood.

In order to achieve the above purpose, the embodiment of the utility model adopts the following technical scheme:

the utility model provides a range hood, which comprises a shell, wherein the shell is provided with a shell air inlet and a shell air outlet; the volute is arranged in the shell and provided with a volute air inlet and a volute air outlet, and the volute air outlet is communicated with the shell air outlet; the air channel is arranged in the shell, one end of the air channel is communicated with the volute air inlet, and the end of the air channel, far away from the volute, is communicated with the shell air inlet; and the fan is arranged in the volute.

The range hood provided by the utility model is communicated with the volute air inlet through the end provided with the air channel, the end of the air channel far away from the volute is communicated with the shell air inlet, and the volute air outlet is communicated with the shell air outlet, so that negative pressure can be formed by the volute and the air channel under the rotation action of the fan, oil smoke is driven to enter the air channel through the shell air inlet and enter the volute through the volute air inlet, the oil smoke in the volute can be discharged through the volute air outlet and the shell air outlet, the oil smoke does not need to pass through other positions in the shell, the air pressure loss in the shell is reduced, the suction force of the range hood on the oil smoke is improved, the diffusion quantity of the oil smoke to the periphery of the range hood is reduced, the use reliability of the range hood is improved, and the user experience is improved.

Moreover, through the arrangement mode, the effect of increasing the suction force of the range hood can be achieved without increasing the size or the rotating speed of the fan, the cost of the range hood is reduced, the size of the range hood is reduced, the applicability of the range hood is improved, and the noise generated when the fan rotates is reduced.

Simultaneously, through the above-mentioned mode of setting up, the oil smoke need not through all the other positions in the casing, can also avoid the greasy dirt in the oil smoke to pollute other components and parts in the casing, improves range hood's clean convenience, in addition, can also reduce the influence of high temperature oil smoke to other components and parts work in the casing, prolongs the life of other components and parts in the casing, further improves range hood's use reliability.

And the fan is arranged in the volute, so that the resistance of oil smoke flowing in the air channel is reduced, the volute can play a role in guiding the oil smoke, the driving effect of the fan on the oil smoke is improved, the efficiency of sucking and discharging the oil smoke of the range hood is improved, and the using performance of the range hood is further provided.

Furthermore, the casing air inlet comprises a first casing air inlet and a second casing air inlet, the volute air inlet comprises a first volute air inlet and a second volute air inlet, the air duct comprises a first air duct, one end of the first air duct is communicated with the first volute air inlet, and one end of the first air duct, which is far away from the volute, is communicated with the first casing air inlet; and one end of the second air duct is communicated with the second air inlet of the volute, and one end of the second air duct far away from the volute is communicated with the second air inlet of the shell.

Furthermore, the range hood also comprises a sealing ring which is arranged between the air channel and the volute air inlet, and the air channel is communicated with the volute air inlet through the sealing ring.

Furthermore, the range hood also comprises a one-way control valve, the one-way control valve is connected with the air outlet of the shell, and the one-way valve is used for controlling the one-way conduction or the stop of the air outlet of the shell.

Furthermore, the range hood also comprises a support, the support is arranged in the shell, and the volute is connected with the shell through the support.

Furthermore, an oil outlet is formed in the volute, and the range hood further comprises an oil guide nozzle which is arranged at the oil outlet; the oil cup is connected with the shell, and the oil guide nozzle is used for guiding oil stains to flow into the oil cup.

Furthermore, the range hood also comprises an oil screen which is arranged at the air inlet of the shell.

Further, the shell comprises a body, and the body is covered with a volute and an air channel; the collection petticoat pipe, collection petticoat pipe and this body coupling, collection petticoat pipe enclose with the body and establish and form and hold the chamber, and spiral case and wind channel setting are holding the intracavity, and the casing air intake is seted up on collection petticoat pipe.

Furthermore, the range hood also comprises a lighting lamp which is arranged on the smoke collection cover.

Furthermore, the range hood also comprises a control device which is arranged on the shell.

Drawings

Fig. 1 is a schematic structural diagram of a range hood according to some embodiments of the present invention;

FIG. 2 is a schematic cross-sectional view taken along line B-B of FIG. 1;

FIG. 3 is a schematic view of a volute configuration according to some embodiments of the present invention;

FIG. 4 is a schematic view of an air duct according to some embodiments of the present invention;

fig. 5 is an exploded view of a range hood according to some embodiments of the present invention;

FIG. 6 is a second schematic view of an air duct according to some embodiments of the present invention;

fig. 7 is a second exploded view of a range hood according to some embodiments of the present invention;

fig. 8 is a second structural schematic diagram of a range hood according to some embodiments of the present invention;

fig. 9 is a third structural schematic diagram of a range hood according to some embodiments of the present invention;

fig. 10 is a fourth schematic structural view of a range hood according to some embodiments of the present invention;

FIG. 11 is a schematic view of an oil network configuration of some embodiments provided by the present invention;

fig. 12 is a schematic structural diagram of a housing of a range hood according to some embodiments of the present invention;

fig. 13 is a fifth structural schematic view of a range hood according to some embodiments of the present invention;

fig. 14 is a sixth schematic structural view of a range hood according to some embodiments of the present invention.

Detailed Description

Embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

In the description of the present invention, it is to be understood that the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present invention.

The terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless otherwise specified.

In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.

The embodiment of the utility model provides a range hood 100. As shown in fig. 1 and 2 (fig. 2 is a schematic cross-sectional view taken along a direction B-B in fig. 1), the range hood 100 includes a housing 110, a volute 120, an air duct 130, and a fan 140. The housing 110 defines a housing inlet 112 and a housing outlet 114. A volute 120 is disposed within the housing 110. As shown in fig. 3, the volute 120 is opened with a volute inlet 122 and a volute outlet 124. The volute outlet 124 is in communication with the housing outlet 114. The air duct 130 is disposed within the housing 110. As shown in fig. 4, one end of the air duct 130 communicates with the volute inlet 122, and one end of the air duct 130, which is away from the volute 120, communicates with the housing inlet 112. The fan 140 is disposed within the volute 120.

As will be appreciated, the range hood 100 is configured to draw in cooking fumes and discharge the cooking fumes into a common flue. In some embodiments, the range hood 100 may be a top-suction range hood 100 or a side-suction range hood 100.

The housing 110 is opened with a housing inlet 112 and a housing outlet 114, and it can be understood that the oil smoke enters the housing 110 through the housing inlet 112 and exits the housing 110 through the housing outlet 114.

In some embodiments, the number of the housing intake vents 112 and the housing exhaust vents 114 may be one or more. In some embodiments, the number of the housing air inlets 112 and the housing air outlets 114 may be the same or different. In some embodiments, the areas of the housing intake 112 and the housing exhaust 114 may be the same or different.

The housing 110 may be square or rectangular. The housing 110 encloses an accommodating cavity, and the volute 120 and the air duct 130 are arranged in the accommodating cavity, so that the housing 110 can protect the volute 120 and the air duct 130, and the service life of the range hood 100 is prolonged.

It will be appreciated that the volute 120 is a cylindrical housing. The volute 120 is opened with a volute inlet 122 and a volute outlet 124, and it can be understood that the oil smoke enters the volute 120 through the volute inlet 122 and exits the volute 120 through the volute outlet 124.

In some embodiments, the number of the volute air inlet 122 and the volute air outlet 124 may be one or more. In some embodiments, the number of volute air inlets 122 and volute air outlets 124 may be the same or different. In some embodiments, the areas of the volute inlet 122 and the volute outlet 124 may be the same or different.

It is to be appreciated that the air duct 130 is configured to communicate between the housing air inlet 112 and the volute air inlet 122. In some embodiments, the air duct 130 may be a rectangular parallelepiped, a cylinder, an irregular shape, or the like. Through holes are formed at both ends of the air duct 130, and oil smoke can enter or be discharged out of the air duct 130 through the through holes.

It is understood that one end of the air duct 130 communicates with the volute inlet 122, so that the oil smoke in the air duct 130 can enter the volute 120 through the volute inlet 122.

In some embodiments, one end of the air duct 130 may be detachably connected to the volute 120, so as to facilitate maintenance of the range hood 100. In some embodiments, one end of the air duct 130 may also be fixedly connected to the volute 120, so as to prevent the air duct 130 from deviating relative to the volute 120, which may affect the communication effect between the one end of the air duct 130 and the volute air inlet 122, and improve the reliability of the range hood 100.

It is understood that an end of the air duct 130 away from the volute 120 is communicated with the housing air inlet 112, so that the oil smoke outside the range hood 100 can enter the air duct 130 through the housing air inlet 112.

In some embodiments, an end of the air duct 130 remote from the volute 120 may be detachably connected to the housing 110, so as to facilitate maintenance of the range hood 100. In some embodiments, one end of the air duct 130 far away from the volute 120 may also be fixedly connected to the housing 110, so as to prevent the air duct 130 from deviating relative to the housing 110, which affects the communication effect between the end of the air duct 130 far away from the volute 120 and the housing air inlet 112, and improve the use reliability of the range hood 100.

It is understood that the volute air outlet 124 is in communication with the housing air outlet 114, so that the soot in the volute 120 can be discharged out of the range hood 100 through the volute air outlet 124 and the housing air outlet 114.

In some embodiments, the volute 120 may be removably coupled to the housing 110 to facilitate servicing of the range hood 100. In some embodiments, the volute 120 may also be fixedly connected to the housing 110, so as to prevent the volute 120 from deviating relative to the housing 110, which may affect the communication effect between the volute air outlet 124 and the housing air outlet 114, and improve the use reliability of the range hood 100.

A fan 140 is disposed within the volute 120, and in some embodiments, as shown in fig. 5, the fan 140 includes a motor 142 and an impeller 144. The motor 142 rotates to rotate the impeller 144, so that a negative pressure can be formed in the scroll casing 120. The volute inlet 122 is in communication with one end of the air duct 130, such that a negative pressure is also formed within the air duct 130. As shown by the arrow in fig. 4, the oil smoke enters the air duct 130 through the casing air inlet 112 and then enters the volute 120 through the volute air inlet 122 under the negative pressure. In addition, since the volute air outlet 124 is communicated with the housing air outlet 114, the fan 140 can drive the oil smoke in the volute 120 to be discharged out of the range hood 100 through the volute air outlet 124 and the housing air outlet 114, so that the oil smoke is sucked and discharged.

In some embodiments, the fan 140 may be fixed in the volute 120 by a bracket or the like, so as to prevent the fan 140 from shaking or shifting relative to the volute 120 when rotating, thereby improving the reliability of the range hood 100.

In some embodiments, the rotation speed of the fan 140 is adjustable, so as to meet different cooking requirements of users, and improve the flexibility of the range hood 100.

As shown in fig. 2 (fig. 2 is a schematic sectional view along the direction B-B in fig. 1), one end of the air duct 130 is disposed to be communicated with the volute inlet 122, one end of the air duct 130 away from the volute 120 is communicated with the casing inlet 112, and the volute outlet 124 is communicated with the casing outlet 114, so that the volute 120 and the air duct 130 can both form negative pressure under the rotation action of the fan 140, and oil smoke is driven to enter the air duct 130 through the casing inlet 112 and enter the volute 120 through the volute inlet 122, and the oil smoke in the volute 120 can be discharged through the volute outlet 124 and the casing outlet 114, so that the oil smoke does not need to pass through other positions in the casing 110, thereby reducing the wind pressure loss in the casing 110, improving the suction force of the range hood 100 on the oil smoke, reducing the diffusion amount of the oil smoke to the periphery of the range hood 100, and improving the use reliability of the range hood 100, thereby improving the user experience.

Moreover, through the above arrangement mode, the effect of increasing the suction force of the range hood 100 can be achieved without increasing the size or the rotating speed of the fan 140, the cost of the range hood 100 is reduced, the size of the range hood 100 is reduced, the applicability of the range hood 100 is improved, and the noise generated when the fan 140 rotates is reduced.

Simultaneously, through above-mentioned mode of setting up, the oil smoke need not through all the other positions in casing 110, can also avoid the greasy dirt in the oil smoke to pollute other components and parts in the casing 110, improves range hood 100's clean convenience, in addition, can also reduce the influence of high temperature oil smoke to other components and parts work in casing 110, the life of other components and parts in the extension casing 110, further improves range hood 100's reliability in utilization.

In addition, the fan 140 is disposed in the volute 120, so that the resistance of the oil smoke flowing in the air duct 130 is reduced, the volute 120 can also guide the oil smoke, the driving effect of the fan 140 on the oil smoke is improved, the efficiency of the range hood 100 for sucking and discharging the oil smoke is improved, and the use performance of the range hood 100 is provided.

In some embodiments, the volute 120 may be an injection-molded integrated structure, and the air duct 130 may also be an injection-molded integrated structure, so as to further improve the sealing effect between the volute 120 and the air duct 130, reduce the diffusion amount of the oil smoke to other positions in the housing 110, and reduce the wind pressure loss of the range hood 100.

Further, as shown in FIG. 2 (FIG. 2 is a schematic cross-sectional view taken along the direction B-B of FIG. 1), the housing intake vent 112 includes a housing first intake vent 116 and a housing second intake vent 118. As shown in fig. 3, the volute inlet 122 includes a volute first inlet 126 and a volute second inlet 128. As shown in fig. 5, the air duct 130 includes a first air duct 132 and a second air duct 134. One end of the first air duct 132 is communicated with the first volute inlet 126, and the end of the first air duct 132 away from the volute 120 is communicated with the first housing inlet 116. One end of the second air duct 134 is in communication with the volute second inlet 128, and an end of the second air duct 134 remote from the volute 120 is in communication with the housing second inlet 118.

It is understood that the first air channel 132 and the second air channel 134 may be the same length or different lengths.

In some embodiments, the areas of the first and second

housing air intakes

116, 118 may be the same or different. In some embodiments, the areas of the volute first air inlet 126 and the volute second air inlet 128 may be the same or different.

Through setting up first air intake 116 of casing and casing second air intake 118, increased the quantity of the last air intake of casing 110 to expanded range that range hood 100 can inhale the oil smoke, makeed range hood 100 can inhale the oil smoke of different positions, further reduced the oil smoke to range hood 100 diffusion volume all around, satisfied different culinary art demands, improved range hood 100's performance.

Furthermore, one end of the first air duct 132 is disposed to communicate with the first volute inlet 126, one end of the first air duct 132 away from the volute 120 is communicated with the first housing inlet 116, one end of the second air duct 134 is communicated with the first volute inlet 128, and one end of the second air duct 134 away from the volute 120 is communicated with the second housing inlet 118, so that when the fan 140 rotates, as shown by the arrow in fig. 6, the oil smoke can enter the first air duct 132 through the first housing inlet 116 or enter the second air duct 134 through the second housing inlet 118.

The oil smoke in the first air duct 132 and the second air duct 134 respectively enters the volute 120 through the first volute air inlet 126 and the second volute air inlet 128, so that the mutual influence between the first air duct 132 and the second air duct 134 is reduced, the first air duct 132 and the second air duct 134 can independently work, and the use reliability of the range hood 100 is further improved.

In some embodiments, the first housing air inlet 116 and the first volute air inlet 126, or the second housing air inlet 118 and the second volute air inlet 128 may be opened according to different cooking requirements, and the first housing air inlet 116, the first volute air inlet 126, the second housing air inlet 118, and the second volute air inlet 128 may also be opened simultaneously, which improves the flexibility of the range hood 100.

Further, as shown in fig. 5, the range hood 100 further includes a sealing ring 152. The sealing ring 152 is disposed between the air duct 130 and the volute inlet opening 122, and the air duct 130 is communicated with the volute inlet opening 122 via the sealing ring 152.

It will be appreciated that the sealing ring 152 can function as a seal. The air duct 130 is communicated with the volute air inlet 122 through the sealing ring 152, so that the amount of oil smoke diffusing to the casing 110 through the connecting position of the air duct 130 and the volute 120 is reduced, the influence of the oil smoke on other components in the casing 110 is further reduced, and the use reliability of the range hood 100 is improved.

Meanwhile, by the sealing ring 152, the amount of air in the casing 110 entering the air duct 130 and the volute 120 through the connecting position of the air duct 130 and the volute 120 can be reduced, the air pressure loss of the range hood 100 is further reduced, the suction force of the fan 140 to the oil smoke is improved, and the use performance of the range hood 100 is improved.

In some embodiments, the material of the sealing ring 152 may be rubber, so as to further ensure the sealing effect.

Further, as shown in fig. 5, the range hood 100 further includes a one-way control valve 154. The one-way control valve 154 is connected to the housing air outlet 114, and the one-way control valve 154 is used to control the one-way connection or disconnection of the housing air outlet 114.

It can be understood that the one-way control valve 154 is in one-way conduction along the direction from the housing air outlet 114 to the common flue, so that impurities or oil smoke in the common flue are prevented from entering the volute 120 or the air duct 130 through the housing air outlet 114, and the use reliability of the range hood 100 is improved.

In some embodiments, the one-way control valve 154 may be a one-way solenoid valve, which improves the automation performance of the range hood 100.

In some embodiments, the range hood 100 further includes a one-way control valve pad 158, and the one-way control valve 154 is connected to the housing air outlet 114 through the one-way control valve pad 158, so that the sealing performance between the one-way control valve 154 and the housing 110 is improved, further, the oil smoke or impurities in the common flue are prevented from entering the housing 110, and the use reliability of the range hood 100 is improved.

In some embodiments, the check valve pad 158 may be a rubber pad.

Further, as shown in fig. 7, the range hood 100 further includes a bracket 156. A bracket 156 is disposed within the housing 110, and the volute 120 is connected to the housing 110 by the bracket 156.

Through the arrangement of the bracket 156, the volute 120 and the housing 110 can be relatively fixed, so that the rotation of the fan 140 is avoided, the volute 120 is prevented from shaking or shifting relative to the housing 110, and the use reliability of the range hood 100 is further improved.

In some embodiments, the number of the brackets 156 may be two, and the brackets are respectively disposed in front of and behind the volute 120, so as to further improve the supporting effect of the brackets 156 on the volute 120.

Further, an oil outlet is formed on the volute casing 120. As shown in fig. 7, the extractor hood 100 further includes an oil guide nozzle 162 and an oil cup 164. The oil guide nozzle 162 is disposed at the oil outlet. As shown in fig. 8, the oil cup 164 is connected to the housing 110, and the oil guide 162 serves to guide the oil into the oil cup 164.

It is understood that the oil receiving port is opened below the scroll case 120. When oil smoke enters the volute 120 under the driving of the fan 140, oil stains in the oil smoke can be condensed on the impeller 144. The oil stain on the impeller 144 flows out of the volute 120 through the oil outlet under the action of gravity, so that the accumulation amount of the oil stain in the volute 120 is reduced, and the cleaning convenience of the volute 120 is improved.

In some embodiments, the number of oil outlets may be one or more. The shape and area of different oil outlets can be the same or different.

As shown in fig. 6, the oil guide nozzle 162 is disposed at the oil outlet and connected to the scroll case 120. As shown in fig. 9, the oil cup 164 is connected to the housing 110, and oil dirt can flow into the oil cup 164 along the inner wall of the housing 110 under the guidance of the oil guide nozzle 162, so that the collection of the oil dirt in the volute 120 is realized, the oil dirt is prevented from polluting the rest positions of the housing 110, and the cleaning convenience of the range hood 100 is improved.

In some embodiments, the oil guiding nozzle 162 may be fixedly connected to the volute 120, so as to improve the reliability of the range hood 100. In some embodiments, the oil delivery nozzle 162 may also be removably coupled to the volute 120 for easy cleaning by the user.

In some embodiments, the oil cup 164 and the housing 110 may be detachably connected through a sliding groove, a buckle, or a guide rail, which is convenient for a user to clean oil inside the oil cup 164, and improves the convenience of the range hood 100.

In some embodiments, the length of the oil cup 164 is the same as the length of the housing 110, which improves the collection of oil from the oil cup 164.

Further, as shown in fig. 10, the range hood 100 further includes an oil net 166. The oil screen 166 is disposed at the housing air intake 112.

As shown in fig. 11, the oil screen 166 is provided with through holes, so that gas can pass through the through holes and enter the air duct 130, and impurities in the oil smoke cannot pass through the through holes, so that the oil screen 166 has a filtering effect on the oil smoke, and the impurities in the oil smoke are prevented from entering the air duct 130 or the scroll casing 120 to block the air duct 130 or the scroll casing 120, thereby further improving the use reliability of the range hood 100.

In some embodiments, the oil net 166 may be fixedly connected to the housing 110, so as to improve the reliability of the range hood 100. In some embodiments, the oil screen 166 may also be removably connected to the housing 110 to facilitate servicing and replacement.

In some embodiments, the number of the oil nets 166 is two, and the oil nets are respectively disposed at the first housing air inlet 116 and the second housing air inlet 118, so that the use reliability of the range hood 100 is improved.

Further, as shown in fig. 12, the housing 110 body includes a body 172 and a smoke collection cage 174. The body 172 houses the volute 120 and the air duct 130. The fume collecting hood 174 is connected with the body 172, and the fume collecting hood 174 and the body 172 enclose to form an accommodating cavity. The volute 120 and the air duct 130 are disposed in the accommodating chamber, and the housing air inlet 112 is opened on the smoke collecting hood 174.

It will be appreciated that the body 172 includes a top plate 176, a back plate 175 and a face plate 177, as shown in fig. 12. The top plate 176 includes a top portion and a bent portion, the top portion is disposed above the scroll casing 120, and the casing air outlet 114 is opened at the top portion of the top plate 176. The bent portion of the top plate 176 is disposed behind the volute 120, and as shown in fig. 13, the back plate 175 is connected to the bent portion of the top plate 176.

The panel 177 can surround the scroll 120 and the air duct 130 and is connected with the bent portion of the top plate 176, so that the body 172 can cover the scroll 120 and the air duct 130, the scroll 120 and the air duct 130 are protected, and the service lives of the scroll 120 and the air duct 130 are prolonged.

A fume collecting hood 174 is coupled to the body 172, and it will be appreciated that the fume collecting hood 174 serves to collect the fumes. The housing air inlet 112 is disposed on the smoke collecting hood 174, so that the oil smoke collected by the smoke collecting hood 174 can enter the air duct 130 through the housing air inlet 112, thereby further reducing the diffusion amount of the oil smoke to the periphery of the range hood 100 and improving the suction effect of the range hood 100 on the oil smoke.

Further, as shown in fig. 14, the range hood 100 further includes an illumination lamp 178. The illumination lamp 178 is provided on the smoke collecting cover 174.

It can be appreciated that the illumination lamp 178 is used for illumination, so that the user can cook at night or in a place with poor light, and the use performance of the range hood 100 is further improved.

In some embodiments, the illumination lamp 178 is disposed between the first housing air inlet 116 and the second housing air inlet 118, so that the shielding of the housing 110 from light is reduced, and the illumination effect of the illumination lamp 178 is improved.

In some embodiments, the illumination lamp 178 may be an LED illumination lamp, which reduces the power consumption of the range hood 100.

In some embodiments, the number of the lighting lamps 178 may be one or more, which improves the applicability of the range hood 100.

Further, as shown in fig. 8, the range hood 100 further includes a control device 190. The control device 190 is disposed on the housing 110.

Specifically, as shown in fig. 7, the control device 190 includes a control button 192, a control circuit board 194, and a control housing 196. The control button 192 is arranged at the front part of the smoke collecting hood 174, the control circuit board 194 is arranged on the outer wall of the shell 110, and the control shell 196 is connected with the shell 110 and used for covering the control circuit board 194, so that the control circuit board 194 is protected, and the service life of the control device 190 is prolonged.

It can be understood that, by pressing the control button 192, the control information can be transmitted to the control circuit board 194, so that the control circuit board 194 controls the operation of the range hood 100, and the use performance of the range hood 100 is improved.

In addition, the control device 190 is disposed on the casing 110, so that the influence of the oil smoke on the control device 190 can be reduced, the service life of the control device 190 is further prolonged, and the use reliability of the range hood 100 is improved.

In one embodiment, as shown in fig. 7, a range hood 100 is provided. The range hood 100 includes a housing 110, a volute 120, a first air duct 132, and a second air duct 134.

As shown in fig. 12, the housing 110 includes a top panel 176, a back panel 175, a face panel 177, and a smoke collection cage 174. The top plate 176 includes a top portion and a bent portion, and the housing outlet vent 114 opens on the top portion of the top plate 176. The back plate 175 is connected to the bent portion of the top plate 176. The panel 177 is connected to the bent portion of the top plate 176 to form the body 172.

The fume collecting hood 175 is connected with the body 172 to form a receiving chamber. The first housing air inlet 116 and the second housing air inlet 118 are opened on the smoke collecting hood 174. The volute 120, the first air duct 132 and the second air duct 134 are disposed within the receiving chamber.

Specifically, the volute 120 is connected to the housing 110 by a bracket 156. The bracket 156 includes a front bracket disposed in front of the scroll case 120 and a rear bracket disposed behind the scroll case 120, which improves stability of connection between the scroll case 120 and the housing 110.

As shown in fig. 3, the volute 120 has a first volute air inlet 126, a second volute air inlet 128, and a second volute air outlet 124. One end of the first air duct 132 is communicated with the first volute inlet 126 via the sealing ring 152, and the end of the first air duct 132 away from the volute 120 is communicated with the first casing inlet 116. One end of the second air duct 134 is communicated with the second volute inlet 128 via a sealing ring 152, and the end of the second air duct 134 remote from the volute 120 is communicated with the second casing inlet 118. The volute outlet 124 is in communication with the housing outlet 114.

A fan 140 is disposed within the volute 120, and in particular, the fan 140 includes a motor 142 and an impeller 144. The impeller 144 can be driven by the motor 142 to rotate, so that a negative pressure is formed in the volute 120 and the air duct 130. When the fan 140 rotates, as shown by the arrow in fig. 6, the oil smoke can enter the first air duct 132 through the first housing air inlet 116 and enter the second air duct 134 through the second housing air inlet 118. The oil smoke in the first air duct 132 and the second air duct 134 enters the volute 120 through the volute first air inlet 126 and the volute second air inlet 128, respectively, and the oil smoke in the volute 120 is exhausted through the volute air outlet 124 and the housing air outlet 114, so that the oil smoke is sucked and exhausted.

Through the above arrangement, make the oil smoke need not to flow through other positions in the casing 110, the loss of wind pressure has been reduced, improve the suction of range hood 100 to the oil smoke, reduce the oil smoke to range hood 100 diffusion volume all around, and need not to increase the size of fan 140 or increase fan 140 rotational speed, can realize increasing range hood 100's suction, the cost of range hood 100 has been reduced, reduce range hood 100's volume, improve range hood 100's suitability, reduce fan 140's noise simultaneously, improve range hood 100's performance.

Meanwhile, oil stains in the oil smoke can be prevented from polluting other components in the shell 110, the influence of the high-temperature oil smoke on the work of other components in the shell 110 is reduced, and the use reliability of the range hood 100 is further improved.

In addition, the fan 140 is disposed in the volute 120, so that the fan 140 can be prevented from affecting the flow of the oil smoke in the air duct 130, and the volute 120 can guide the oil smoke, thereby improving the efficiency of the oil smoke entering and exiting the range hood 100 and improving the usability of the range hood 100.

Moreover, by arranging the sealing ring 152, the sealing performance of the communication between the volute 120 and the air duct 130 is further improved, the oil smoke is prevented from diffusing to other positions in the casing 110, and the use reliability of the range hood 100 is improved. Meanwhile, the amount of air in the housing 110 entering the air duct 130 and the volute 120 can be reduced, the air pressure loss of the fan 140 is further reduced, and the suction force of the range hood 100 is ensured.

In some embodiments, the air duct 130 may be formed by injection molding, so as to ensure the sealing property of the air duct 130 and improve the suction force of the range hood 100. In some embodiments, the volute 120 is also formed by injection molding, so that the sealing performance of the volute 120 is ensured, and the suction force of the range hood 100 is improved.

An oil outlet is formed at the bottom of the volute 120, and an oil guide nozzle 162 is arranged at the oil outlet and connected with the volute 120. The oil cup 164 is connected to the housing 110.

It will be appreciated that as the fan 140 rotates, oil from the oil soot can condense on the impeller 144. Under the action of gravity, oil stains flow to the oil guide nozzle 162 through the oil outlet, and flow into the oil cup 164 along the side wall of the shell 110 under the guide of the oil guide nozzle 162, so that the collection of the oil stains is realized, and the cleaning convenience of the range hood 100 is improved.

The range hood 100 further includes a one-way control valve 154, and the one-way control valve 154 is connected to the housing outlet 114 through a one-way control valve pad 158. It can be understood that the one-way control valve 154 is in one-way conduction along the direction from the housing air outlet 114 to the common flue, so as to prevent impurities or oil smoke in the common flue from entering the volute 120 or the air duct 130 through the housing air outlet 114, thereby improving the use reliability of the range hood 100. Meanwhile, by arranging the one-way control valve gasket 158, the sealing effect between the one-way control valve 154 and the top plate 176 is further improved, impurities or oil smoke in the common flue are prevented from entering the shell 110, and the use reliability of the range hood 100 is improved.

Extractor hood 100 also includes oil screen 166 and illumination lamp 178. The number of the oil nets 166 is two, and the two oil nets are respectively arranged at the first air inlet 116 of the housing and the second air inlet 118 of the housing, so as to filter the oil smoke, prevent impurities from entering the air duct 130 or the volute casing 120, and prevent the air duct 130 or the volute casing 120 from being blocked, thereby improving the use reliability of the range hood 100. The lighting lamp 178 is disposed between the first air inlet 116 of the housing and the second air inlet 118 of the housing, so as to provide lighting function, which is convenient for the user to cook in poor light, thereby improving the applicability of the range hood 100.

The range hood 100 further includes a control device 190, and the control device 190 includes a control button 192, a control circuit board 194, and a control housing 196. The control button 192 is arranged in front of the fume collecting hood 174, and the control button 192 can send control information to the control circuit board 194, so that control over the range hood 100 is achieved, and the use performance of the range hood 100 is improved.

Specifically, the control circuit board 194 is disposed on an outer wall of the housing 110, and the control circuit board 194 is covered by the control housing 196, so as to protect the control circuit board 194 and prolong the service life of the control device 190. Meanwhile, the control circuit board 194 is arranged on the outer wall of the casing 110, so that the influence of oil smoke on the control device 190 can be reduced, and the use reliability of the range hood 100 is further improved.

In the description herein, particular features, structures, materials, or characteristics may be combined in any suitable manner in any one or more embodiments or examples.

The above description is only for the specific embodiments of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art can easily conceive of the changes or substitutions within the technical scope of the present invention, and all the changes or substitutions should be covered within the scope of the present invention. Therefore, the protection scope of the present invention shall be subject to the protection scope of the appended claims.

Claims

1. A range hood, comprising:

the shell is provided with a shell air inlet and a shell air outlet;

the volute is arranged in the shell and provided with a volute air inlet and a volute air outlet, and the volute air outlet is communicated with the shell air outlet;

the air channel is arranged in the shell, one end of the air channel is communicated with the volute air inlet, and the end of the air channel, far away from the volute, is communicated with the shell air inlet;

a fan disposed within the volute.

2. The range hood of claim 1, wherein the housing inlet includes a first housing inlet and a second housing inlet, the volute inlet includes a first volute inlet and a second volute inlet, and the air duct includes:

one end of the first air duct is communicated with the first air inlet of the volute, and one end of the first air duct, which is far away from the volute, is communicated with the first air inlet of the shell;

and one end of the second air duct is communicated with the second air inlet of the volute, and one end of the second air duct, which is far away from the volute, is communicated with the second air inlet of the shell.

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

the sealing ring is arranged between the air duct and the volute air inlet, and the air duct is communicated with the volute air inlet through the sealing ring.

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

and the one-way control valve is connected with the shell air outlet and is used for controlling the one-way conduction or stop of the shell air outlet.

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

the support is arranged in the shell, and the volute is connected with the shell through the support.

6. The range hood of claim 1, wherein the volute has an oil outlet, the range hood further comprising:

the oil guide nozzle is arranged at the oil outlet;

the oil cup is connected with the shell, and the oil guide nozzle is used for guiding oil stains to flow into the oil cup.

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

the oil net is arranged at the air inlet of the shell.

8. The range hood of any one of claims 1 to 7, wherein the housing comprises:

the body covers the volute and the air duct;

the collection petticoat pipe, the collection petticoat pipe with this body coupling, the collection petticoat pipe with the body encloses to establish and forms and holds the chamber, the spiral case with the wind channel sets up hold the intracavity, the casing air intake is seted up collection petticoat pipe is last.

9. The range hood of claim 8, further comprising:

the illuminating lamp is arranged on the smoke collection cover.

10. The range hood of any one of claims 1 to 7, further comprising:

a control device disposed on the housing.