WO2018176633A1

WO2018176633A1 - Smoke discharging assembly and range hood

Info

Publication number: WO2018176633A1
Application number: PCT/CN2017/088116
Authority: WO
Inventors: 蒋济武; 宋祖龙; 彭小康; 顾卓淳
Original assignee: 广东美的厨房电器制造有限公司; 美的集团股份有限公司
Priority date: 2017-03-31
Filing date: 2017-06-13
Publication date: 2018-10-04

Abstract

A smoke discharging assembly (100) and a range hood (300). The smoke discharging assembly (100) comprises a volute casing (102), a first blower (104), and a second blower (106); the volute casing (102) comprises a casing body (108) and a flow guide plate (110); the casing body (108) comprises a top plate (112) and a bottom plate (114) opposite to each other; the bottom plate (114) is provided with a first air inlet (116) and a second air inlet (118) at an interval; the top plate (112) is provided with an air outlet (120); the flow guide plate (110) is provided in the casing body (108); the flow guide plate (110) comprises a first arc-shaped surface (122) and a second arc-shaped surface (124); the first and second arc-shaped surfaces (122, 124) respectively face the wheels (123) of the first and second blowers (104, 106) and the top plate (112), and respectively guide the air flow exhausted by the first and second blowers (104, 106) to the air outlet (120) of the top plate (112). The range hood (300) comprises the smoke discharging assembly (100); the air flow in the smoke discharging assembly (100) smoothly flows out from the air outlet (120) along the arc-shaped surfaces (122, 124) of the flow guide plate (110), and no strong vortex is generated due to the opposed jet of back flow and subsequent air flow, so that an air output amount is ensured, and noise and resistance losses are also effectively reduced.

Description

Smoke exhaust unit and range hood

Priority information

The present application claims priority to and the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit of the benefit.

Technical field

The invention relates to the technical field of household appliances, and more particularly to a smoke exhausting assembly and a range hood.

Background technique

In the related art, the range hood product is in pursuit of a good smoke absorbing effect, and the oil absorbing machine has a double fan structure. The existence of the double motor structure will make the effect of the oil smoke on both sides smaller, and have a good effect of sucking smoke on both sides of the range hood.

At present, the structure of the double fan is placed in the volute, and the volute is provided with an air outlet. When designing the volute, the noise of the airflow of the two fans at the air outlet and the air volume of the air outlet should be considered. Therefore, how to make the range hood produce low noise and ensure the air volume of the air outlet is a problem to be solved when working on the range hood.

Summary of the invention

The present invention aims to at least solve one of the technical problems existing in the related art. To this end, embodiments of the present invention need to provide a smoke evacuation assembly and a range hood.

A smoke exhausting assembly for an extractor hood according to an embodiment of the present invention, the smoke exhausting assembly comprising: a volute, the volute includes a casing and a drainage plate, the casing includes an opposite top plate and a bottom plate, the bottom plate is provided with a first air inlet and a second air inlet, and the top plate is provided with an air outlet. The draining plate is disposed in the casing; the first fan is at least partially disposed in the casing and located at the first air inlet; and the second fan, the second fan is at least Partially disposed in the housing and located at the second air inlet; the drainage plate includes a first curved surface and a second curved surface, the first curved surface facing the wind of the first fan a wheel and the top plate, the first curved surface is configured to drain the airflow discharged by the wind wheel of the first fan to the air outlet of the top plate, and the second curved surface faces the second a wind wheel of the fan and the top plate, wherein the second curved surface is configured to drain the airflow discharged by the wind wheel of the second fan to the air outlet of the top plate.

In the above-mentioned smoke exhausting assembly, when the airflow on both sides of the deflector reaches the deflector, it smoothly flows out from the air outlet along the curved surface of the deflector, and does not form a strong vortex generated by the backflow and the subsequent airflow. Furthermore, under the premise of ensuring the air volume of the air outlet, the noise and resistance loss during the operation of the smoke exhausting assembly are effectively reduced.

In certain embodiments, the drain plate extends to the air outlet of the top plate.

In some embodiments, the air outlet is located between the first air inlet and the second air inlet.

In some embodiments, the drainage plate includes a first drainage plate and a second drainage plate, the first drainage plate including the first curved surface and a first surface opposite the first curved surface The second drain plate includes the second curved surface and a second surface opposite the second curved surface, the first surface and the second surface forming the drainage toward the bottom plate The bottom of the board.

In some embodiments, one end of the first drainage plate is connected to the bottom plate, one end of the second drainage plate is connected to the bottom plate, and the other end of the first drainage plate is connected to the second drainage plate. another side.

In some embodiments, one end of the first drainage plate and the other end of the first drainage plate are flat, and one end of the second drainage plate and the other end of the second drainage plate are flat. .

In some embodiments, the drain plate includes a mounting portion through which the drain plate passes The portion is mounted within the housing.

In some embodiments, the mounting portion is disposed on a side of the first curved surface and the second curved surface.

In certain embodiments, the drainage plate is an integrally formed structure.

In some embodiments, the orthographic projection of the air outlet on the bottom plate is entirely on a portion of the bottom plate connecting the first air inlet and the second air inlet.

In some embodiments, the drainage plate is arranged such that the airflow discharged by the wind wheel of the first fan and the wind wheel of the second fan is directly directed from the wind wheel to the longitudinal direction of the wind wheel and is derived from the air outlet. .

In some embodiments, the top plate is provided with two recesses, and a connection terminal of the first motor of the first fan protrudes toward the housing through one of the grooves, the second fan A connection terminal of the second motor protrudes toward the housing via the other of the grooves.

A range hood according to an embodiment of the present invention includes the smoke exhausting assembly of any of the above embodiments.

In the above range hood, when the airflow on both sides of the deflector reaches the deflector, it smoothly flows out from the air outlet along the curved surface of the deflector, and does not form a strong vortex generated by the backflow and subsequent airflow. In addition, under the premise of ensuring the air volume of the air outlet, the noise is effectively reduced.

Additional aspects and advantages of the embodiments of the invention will be set forth in part in the description.

DRAWINGS

The above and/or additional aspects and advantages of the present invention will become apparent and readily understood from

1 is a schematic perspective cross-sectional view of a smoke evacuation assembly according to an embodiment of the present invention.

2 is a schematic plan cross-sectional view of a smoke evacuation assembly in accordance with an embodiment of the present invention.

3 is an exploded perspective view of the smoke evacuation assembly of the embodiment of the present invention.

4 is a schematic diagram showing the relationship between the air inlet and the air outlet of the smoke exhausting assembly according to the embodiment of the present invention.

Fig. 5 is a schematic view showing another relationship between the air inlet and the air outlet of the smoke exhausting assembly according to the embodiment of the present invention.

Fig. 6 is an exploded perspective view showing a drain plate of the smoke exhausting assembly of the embodiment of the present invention.

7 is a schematic view showing a processing process of a drain plate of a smoke exhausting assembly according to an embodiment of the present invention.

Fig. 8 is a schematic perspective view of a range hood according to an embodiment of the present invention.

detailed description

The embodiments of the present invention are described in detail below, and the examples of the embodiments are illustrated in the drawings, wherein the same or similar reference numerals indicate the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the drawings are intended to be illustrative of the invention and are not to be construed as limiting.

In the description of the present invention, it is to be understood that the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, features defining "first" or "second" may include one or more of the described features either explicitly or implicitly. In the description of the present invention, the meaning of "a plurality" is two or more unless specifically and specifically defined otherwise.

In the description of the present invention, it should be noted that the terms "installation", "connected", and "connected" are to be understood broadly, and may be fixed or detachable, for example, unless otherwise explicitly defined and defined. Connected, or integrally connected; may be mechanically connected, or may be electrically connected or may communicate with each other; may be directly connected or indirectly connected through an intermediate medium, may be internal communication of two elements or interaction of two elements relationship. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood on a case-by-case basis.

The following disclosure provides many different embodiments or examples for implementing different structures of the present invention. In order to simplify the disclosure of the present invention, the components and settings of specific examples are described below. Of course, they are merely examples and are not intended to limit the invention. Furthermore, the present invention may repeat reference numerals and/or reference letters in different examples. This repetition is for simplicity and clarity. It does not itself indicate the relationship between the various embodiments and/or settings discussed. Moreover, the present invention provides examples of various specific processes and materials, but one of ordinary skill in the art will recognize the use of other processes and/or the use of other materials.

Referring to FIG. 1 to FIG. 3 , a smoke exhausting assembly 100 according to an embodiment of the present invention includes a volute 102 , a first fan 104 , and a second fan 106 .

The volute 102 includes a housing 108 and a drainage plate 110. The housing 108 includes an opposite top plate 112 and a bottom plate 114. The bottom plate 114 defines a first air inlet 116 and a second air inlet 118. The top plate 112 defines an air outlet 120. The drain plate 110 is disposed within the housing 108.

The first fan 104 is at least partially disposed within the housing 108 and is located at the first air inlet 116. The second blower 106 is at least partially disposed within the housing 108 and located at the second air inlet 118.

The drain plate 110 includes a first curved surface 122 facing the wind wheel and the top plate 112 of the first fan 104, and a second curved surface 122 for the first fan 104 The airflow discharged from the wind wheel 123 is diverted to the air outlet 120 of the top plate 112, the second curved surface 124 faces the wind wheel and the top plate 112 of the second fan 106, and the second curved surface 124 is used to wind the wind wheel 125 of the second fan 106. The discharged airflow is drained to the air outlet 120 of the top plate 112.

In the above-mentioned smoke exhausting assembly 100, when the airflow on both sides of the deflector 110 reaches the draining plate 110, it will smoothly flow out from the air outlet 120 along the curved surface of the deflector, and will not be formed by the backflow and subsequent airflow. The vortex is strongly vortexed, and the noise and resistance loss during the operation of the smoke exhausting assembly 100 are effectively reduced under the premise of ensuring the air volume of the air outlet 120.

Further, the curved surface of the drainage plate 110 faces the top plate 112, so that the drainage plate 110 directly guides the airflow discharged by the wind wheel 123 of the first fan 104 and the airflow discharged by the wind wheel 125 of the second fan 106 to the air outlet 120 of the top plate 112. Instead of directing the two air streams to the side panel 126 of the housing 108, the side panels 126 of the housing 108 or other components of the range hood are diverted to the air outlets 120 of the top panel 112. In other words, the arrangement of the drainage plate 110 is such that the airflow discharged from the wind wheel 123 of the first fan 104 and the wind wheel 125 of the second fan 106 is directly guided from the wind turbine lateral direction X to the longitudinal direction Y of the wind wheel and is derived from the air outlet 120, as shown in FIG. Shown.

This will make the wind more smooth and further reduce the noise.

In the embodiment of the present invention, the side plate 126 of the housing 108 connects the top plate 112 and the bottom plate 114. In some examples, the side panels 126 are vertically joined to the top panel 112 and the bottom panel 114, and the top panel 112 and the bottom panel 114 are parallel.

Specifically, the air outlet 120 is located on the upper side of the drainage plate 110 such that the airflow drawn through the drainage plate 110 is directly drained to the air outlet 120.

In the embodiment of the present invention, the first fan 104 includes a first motor 128, and the wind wheel 123 of the first fan 104 is fixedly coupled to the drive shaft 130 of the first motor 128. The exhaust unit 100 includes a fastener 132. The outer surface of the drive shaft 130 of the first motor 128 has a latching portion 134. The wind wheel 123 of the first fan 104 includes a fixing portion 136 and an exhaust portion 138. The exhaust portion 138 is connected. On the outer side of the fixing portion 136, the fixing portion 136 defines a shaft hole 140, and the inner surface of the shaft hole 140 defines a card slot 142. In the embodiment of the invention, the longitudinal direction Y of the wind wheel is parallel to the longitudinal direction of the drive shaft 130.

The drive shaft 130 of the first motor 128 passes through the shaft hole 140, and the card position 134 is caught in the card slot 142, so that the drive shaft 130 can drive the wind wheel 123 to rotate. The fastener 132 is fixedly coupled to a portion of the drive shaft 130 that protrudes from the shaft hole 140, thereby fixing the wind wheel 123 of the first fan 104 to the drive shaft 130 of the first motor 128.

When the first fan 104 is in operation, the first motor 128 drives the wind wheel 123 of the first fan 104 to rotate, and the air flow is sucked by the discharge portion 138 and discharged to the first curved surface 122 by the side of the discharge portion 138, and then the first arc The profile 122 is drained to the air outlet 120.

The second fan 106 includes the second motor 144. The fixing manner of the second motor 144 and the wind wheel 125 of the second fan 106 can also be referred to the fixing manner of the first motor 128 and the wind wheel 123 of the first fan 104. Expand in detail.

In addition, the top plate 112 of the housing 108 is provided with two recesses 146. The connecting terminal 148 of the first motor 128 protrudes through the one of the recesses 146 toward the housing 108, and the connecting terminal 150 of the second motor 144 passes through the other recess. The 146 extends toward the housing 108 such that the first motor 128 and the second motor 144 are facilitated to draw power from the exterior of the smoke evacuation assembly 100.

In some embodiments, the curved surface is formed by the surface of the deflector 110 opposite to the wind wheel being recessed from the outer direction of the drain plate 110 to the inner direction, and the shape of the curved surface may be a quadratic shape, for example, a circle. Curved, parabolic, and other shapes. Preferably, the curved surface has a circular arc shape and is easy to manufacture.

The drain plate 110 may be made of a metal material or made of a temperature resistant plastic. Metal materials include alloy materials.

Further, in the embodiment of the present invention, the outer surface of the top plate 112 is formed with an annular flange 152 continuously disposed at the edge of the air outlet 120. Thus, the airflow discharged through the air outlet 120 can be further rectified, thereby further reducing smoke exhaust. The noise of component 100 when it is working.

In some embodiments, the drain plate 110 extends to the air outlet 120 of the top plate 112. In this way, the airflow discharged by the wind wheel can be drained to the air outlet 120 by the drainage plate 110, which ensures the noise reduction effect of the drainage plate 110.

In some embodiments, the air outlet 120 is located between the first air inlet 116 and the second air inlet 118.

As such, the airflow drawn by the fan can reach the air outlet 120 in a shorter path, ensuring the suction of the smoke evacuation assembly 100.

Specifically, the air outlet 120 is located between the first air inlet 116 and the second air inlet 118. It can be understood that the orthographic projection 154 of the air outlet 120 of the top plate 112 on the bottom plate 114 is at least partially located at the first air inlet 116 and The bottom portion 114 of the second air inlet 118 is 156 as shown in FIG. In FIG. 4, the first air inlet 116, the second air inlet 118, and the air outlet 120 are illustrated in a circular shape. It can be understood that the first air inlet 116, the second air inlet 118, and the air outlet 120 may have other shapes. .

Preferably, the orthographic projection 154 of the air outlet 120 of the top plate 112 on the bottom plate 114 is entirely located on the bottom plate 114 portion 156 connecting the first air inlet 116 and the second air inlet 118 to further shorten the path, as shown in FIG.

In some embodiments, the drainage plate 110 includes a first drainage plate 157 and a second drainage plate 159. The first drainage plate 157 includes a first curved surface 122 and a first surface 158 opposite the first curved surface 122. The second drain plate 159 includes a second curved surface 124 and a second surface 160 opposite to the second curved surface 124. The first face 158 and the second face 160 form a bottom surface 162 of the drain plate 110 that faces the bottom plate 114.

In this way, the positions of the first drainage plate 157 and the second drainage plate 159 can be respectively configured to optimize the drainage of the first exhaust fan 157 to the exhaust airflow of the first fan 104, and to make the second drainage plate 159 The drainage of the exhaust stream of the second fan 106 is optimized. Moreover, this also facilitates the repair and replacement of the drain plate 110.

Specifically, in the present embodiment, the first drainage plate 157 and the second drainage plate 159 can be separately fabricated. For example, the first drainage plate 157 and the second drainage plate 159 can be separately fabricated and then separately or simultaneously mounted to the casing. 108 inside. At the time of manufacture, a flat plate is bent by a tool to form a first draft plate 157 having a first curved surface 122. The second drainage plate 159 can also be fabricated in a manner similar to the manner in which the first drainage plate 157 is fabricated.

The first drainage plate 157 and the second drainage plate 159 may be spaced apart, or the first drainage plate 157 and the second drainage plate 159 may be connected.

In some embodiments, one end 164 of the first drainage plate 157 is connected to the bottom plate 114, and one end 166 of the second drainage plate 159 is connected to the bottom plate 114. The other end 168 of the first drainage plate 157 is connected to the other end 170 of the second drainage plate 159. .

In this way, the first drainage plate 157 and the second drainage plate 159 are connected, so that the overall size of the drainage plate 110 is small, and the space occupied by the drainage plate 110 for the smoke exhausting assembly 100 is small, which is advantageous in the case of ensuring the suction force of the smoke exhausting assembly 100. The miniaturization of the smoke evacuation assembly 100.

In the embodiment of the present invention, the first drainage plate 157 and the second drainage plate 159 are connected to form a substantially human-shaped drainage plate 110.

In some embodiments, one end 164 of the first drainage plate 157 and the other end 168 of the first drainage plate 157 have a flat shape, and one end 166 of the second drainage plate 159 and the other end 170 of the second drainage plate 159 have a flat shape. .

Thus, the flat end is advantageous for the connection of the plates, so that the connection interval between the plates is small, the flatness of the contact faces is ensured, and the crosstalk of the airflows is avoided to cause noise.

Preferably, the flat end 164 of the first drainage plate 157 can be made parallel to the bottom plate 114. The one end 166 of the second drainage plate 159 having a flat shape may be formed in parallel with the bottom plate 114, and the other end 168 of the first drainage plate 157 may be formed in parallel with the other end 170 of the second drainage plate 159. The connection interval between the plates can be basically eliminated, and the mounting of the first drain plate 157 and the second drain plate 159 is also easy to implement.

In one example, the flat end has a length of 5-10 mm. In this way, the overall size of the drain plate 110 can be optimized even when the flatness of the contact surface is ensured.

In certain embodiments, the drain plate 110 includes a mounting portion 172 that is mounted within the housing 108 by a mounting portion 172.

In this way, by installing the drain plate 110 through the mounting portion 172, the area of the curved surface can be ensured, thereby increasing the amount of air discharged from the smoke exhausting assembly 100.

Specifically, in the embodiment of the present invention, the mounting portion 172 is disposed on the sides of the first curved surface 122 and the second curved surface 124. In this way, the installation of the draining plate 110 is facilitated.

In the embodiment of the present invention, the mounting portion 172 has a plate shape and is parallel to the side plate 126 of the housing 108. When the mounting portion 172 is mounted, the degree of fit between the mounting portion 172 and the side plate 126 is good. Preferably, the mounting portion 172 is at an angle of 90 degrees to the curved surface.

In some embodiments, when the drainage plate 110 includes the first drainage plate 157 and the second drainage plate 159, the mounting portion 172 on the first drainage plate 157 can be integrally formed with the first drainage plate 157, and the second drainage The mounting portion 172 on the plate 159 can be integrally formed with the second drain plate 159.

In one example, the mounting portion 172 mounts the drain plate 110 to the side panels 126 of the housing 108 by screwing.

In certain embodiments, the drainage plate 110 is an integrally formed structure. As such, the drain plate 110 is easy to manufacture and low in cost.

Specifically, in some embodiments, the integrally formed structure of the drainage plate 110 includes a first drainage plate 157 and a second drainage plate 159. When the drainage plate 110 is manufactured, a single piece of material can be processed to interconnect the first drainage plate. 157 and the second drainage plate 159, the shape of the cavity can also be designed according to the shape of the first drainage plate 157 and the second drainage plate 159, and the material of the drainage plate 110 is injected into the film cavity, and the cavity is cold. Thereafter, the demolding process is performed to obtain the drain plate 110.

In some embodiments, the drainage plate 110 can also have other shapes of structure. For example, the rectangular plates may be machined along the two sides 200 in the longitudinal direction to machine the two drainage faces 122, 124 as shown in FIG. The bottom surface 162 of the drain plate 110 is the bottom surface 202 of the sheet material.

In addition, the outer surface of the bottom plate 114 of the volute 102 is provided with an illumination lamp 174 for the convenience of the user's operation during cooking.

Referring to FIG. 8, a range hood 300 according to an embodiment of the present invention includes the smoke exhausting assembly 100 of any of the above embodiments.

In the above range hood 300, when the airflow on both sides of the deflector 110 reaches the draining plate 110, it smoothly flows out from the air outlet 120 along the curved surface of the deflector, and does not form a collision due to backflow and subsequent airflow. The vortex is strongly vortexed, and the noise of the smoke exhausting assembly is effectively reduced under the premise of ensuring the air volume of the air outlet 120.

Specifically, the range hood 300 includes a hood casing 302 in which the hood assembly 100 is housed. Preferably, the bottom 304 of the hood casing 302 is of an open structure. For example, the bottom 304 of the hood casing 302 does not block the bottom plate 114 of the venting assembly 100, and the soot generated during cooking is directly introduced. The tuyere 116 and the second air inlet 118 are inhaled. In this way, the suction and thinning of the range hood 300 are ensured.

Further, the top plate 306 of the hood casing 302 is provided with a hood opening 308, and the hood opening 308 is opposite to and communicates with the air outlet 120, so that the airflow discharged from the smoke exhausting assembly 100 can be discharged to the outside of the range hood 300. In addition, in FIG. 8, the flange 152 of the smoke exhausting assembly 100 is disposed through the hood opening 308. Thus, the airflow discharged from the smoke exhausting assembly 100 can be directly led out to the range hood 300, thereby ensuring the effect of the range hood of the range hood 300 and Noise reduction effect.

In the description of the present specification, the description with reference to the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example", or "some examples", etc. The specific features, structures, materials or characteristics described in the embodiments or examples are included in at least one embodiment or example of the invention. In this specification, the schematic of the above terms The expression does not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in a suitable manner in any one or more embodiments or examples.

Although the embodiments of the present invention have been shown and described, it is understood that the above-described embodiments are illustrative and are not to be construed as limiting the scope of the invention. The embodiments are subject to changes, modifications, substitutions and variations.

Claims

A smoke exhausting assembly for a range hood, wherein the smoke exhausting assembly comprises:

a volute, the volute includes a casing and a drainage plate, the casing includes an opposite top plate and a bottom plate, the bottom plate is provided with a first air inlet and a second air inlet, and the top plate is provided with an air outlet. The drain plate is disposed in the housing;

a first fan, the first fan being at least partially disposed in the housing and located at the first air inlet; and

a second fan, the second fan being at least partially disposed in the housing and located at the second air inlet;

The drain plate includes a first curved surface facing the wind wheel of the first fan and a top curved surface, the first curved surface for The airflow discharged from the wind wheel of the first fan is led to the air outlet of the top plate, the second curved surface faces the wind wheel of the second fan and the top plate, and the second curved surface is used for The airflow discharged from the wind wheel of the second fan is drained to the air outlet of the top plate.
The smoke evacuation assembly of claim 1 wherein said drain plate extends to said air outlet of said top plate.
A smoke evacuation assembly according to claim 1, wherein said air outlet is located between said first air inlet and said second air inlet.
A smoke evacuation assembly according to claim 1, wherein said drainage plate comprises a first drainage plate and a second drainage plate, said first drainage plate comprising said first curved surface and said first a first surface opposite the curved surface, the second drainage plate including the second curved surface and a second surface opposite the second curved surface, the first surface and the second surface forming A bottom surface of the drain plate facing the bottom plate.
The smoke evacuation assembly according to claim 4, wherein one end of the first drainage plate is connected to the bottom plate, one end of the second drainage plate is connected to the bottom plate, and the other end of the first drainage plate Connecting the other end of the second drain plate.
The smoke evacuation assembly according to claim 5, wherein one end of the first drainage plate and the other end of the first drainage plate are flat, one end of the second drainage plate and the second The other end of the drainage plate has a flat shape.
A smoke evacuation assembly according to claim 1, wherein said flow guide plate includes a mounting portion through which said drain plate is mounted in said housing.
A smoke evacuating assembly according to claim 7, wherein said mounting portion is disposed at a side of said first curved surface and said second curved surface.
The smoke evacuation assembly of claim 1 wherein said drainage plate is an integrally formed structure.
A smoke evacuation assembly according to claim 1, wherein an orthographic projection of said air outlet on said bottom plate is entirely located on a portion of said bottom plate connecting said first air inlet and said second air inlet .
The smoke evacuation assembly according to claim 1, wherein the drainage plate is disposed such that the airflow discharged from the wind wheel of the first fan and the wind wheel of the second fan directly guides the wind wheel from the lateral direction of the wind wheel Longitudinal and derived from the air outlet.
A smoke evacuating assembly according to claim 1, wherein said top plate is provided with two recesses, and a connecting terminal of said first motor of said first fan extends through said one of said grooves toward said housing The connection terminal of the second motor of the second fan projects toward the housing via another of the grooves.
A range hood, comprising: a smoke exhausting assembly, the smoke exhausting component comprising:

a volute, the volute includes a casing and a drainage plate, the casing includes an opposite top plate and a bottom plate, the bottom plate is provided with a first air inlet and a second air inlet, and the top plate is provided with an air outlet. The drain plate is disposed in the housing;

a first fan, the first fan being at least partially disposed in the housing and located at the first air inlet; and

a second fan, the second fan being at least partially disposed in the housing and located in the second At the air inlet;

The drain plate includes a first curved surface facing the wind wheel of the first fan and a top curved surface, the first curved surface for The airflow discharged from the wind wheel of the first fan is led to the air outlet of the top plate, the second curved surface faces the wind wheel of the second fan and the top plate, and the second curved surface is used for The airflow discharged from the wind wheel of the second fan is drained to the air outlet of the top plate.
The range hood according to claim 13, wherein said drain plate extends to said air outlet of said top plate.
A range hood according to claim 13, wherein said air outlet is located between said first air inlet and said second air inlet.
The range hood according to claim 13, wherein said drainage plate comprises a first drainage plate and a second drainage plate, said first drainage plate comprising said first curved surface and said first a first surface opposite the curved surface, the second drainage plate including the second curved surface and a second surface opposite the second curved surface, the first surface and the second surface forming A bottom surface of the drain plate facing the bottom plate.
The range hood according to claim 16, wherein one end of the first drainage plate is connected to the bottom plate, one end of the second drainage plate is connected to the bottom plate, and the other end of the first drainage plate Connecting the other end of the second drain plate.
The range hood according to claim 17, wherein one end of the first drainage plate and the other end of the first drainage plate are flat, one end of the second drainage plate and the second The other end of the drainage plate has a flat shape.
The range hood according to claim 13, wherein the draining plate is disposed such that the airflow discharged from the wind wheel of the first fan and the wind wheel of the second fan is directly directed to the wind wheel from the lateral direction of the wind wheel Longitudinal and derived from the air outlet.
A range hood according to claim 13, wherein said top plate is provided with two recesses, and a connecting terminal of said first motor of said first fan passes said one of said grooves toward said casing The body extends, and the connection terminal of the second motor of the second fan projects toward the housing via the other of the grooves.