WO2018094784A1

WO2018094784A1 - Range hood

Info

Publication number: WO2018094784A1
Application number: PCT/CN2016/109661
Authority: WO
Inventors: 武秋红
Original assignee: 广东威灵电机制造有限公司; 美的威灵电机技术（上海）有限公司
Priority date: 2016-11-25
Filing date: 2016-12-13
Publication date: 2018-05-31

Abstract

A range hood (100), comprising a machine body (1), a fan system (2), an exhaust fume collecting hood (3), an auxiliary fan, an oil collecting and filtering hood (4), and an oil collecting member (5). The exhaust fume collecting hood (3) defines an air passage (34) communicated with the fan system (2); the exhaust fume collecting hood (3) comprises an inner hood (31) and an outer hood (32) which are provided in a separated fashion; an auxiliary air passage (33) is defined between the inner hood (31) and the outer hood (32). The auxiliary fan is provided within the auxiliary air passage (33) to generate an air flow. The oil collecting and filtering hood (4) is provided with an oil guide surface (41) for guiding oil to flow downwards. The oil collecting member (5) is provided below the oil collecting and filtering hood (4) to receive oil flowing from the oil guide surface (41).

Description

Range hood

Technical field

The invention relates to a range hood.

Background technique

The structure of the range hood of the prior art drives the fan to generate suction force to achieve the smoke extraction and the dirt absorption. Due to the high-speed motor noise and the size of the range hood fan, the motor speed is generally low and the suction is limited. .

Summary of the invention

The present invention aims to solve at least one of the technical problems in the related art to some extent. To this end, the present invention provides a range hood fan, which can have sufficient suction force during operation to achieve the purpose of sucking forward of the soot, and also make the stove and food clean and tidy without being contaminated.

A range hood according to an embodiment of the present invention includes: a body; a fan system, the fan system being connected to the body and adapted to generate an air flow; a hood, the hood being connected to the body, the set The oil hood defines an air duct in communication with the fan system, the oil collecting hood includes an inner cover and a outer cover that are spaced apart, and an auxiliary air passage is defined between the inner cover and the outer cover, and the outer cover is provided The air inlet is connected to the auxiliary air duct, and the bottom of the inner cover and the outer cover are spaced apart from an air outlet that is electrically connected to the air duct; and an auxiliary fan is disposed in the auxiliary wind a gas flow generating cover; the oil collecting filter cover is disposed in the air duct and located at the top of the air duct, and the oil collecting filter cover is provided with an oil guiding surface for guiding oil downward; And the oil collecting member is disposed under the oil collecting filter cover to receive the oil derived from the oil guiding surface.

According to the range hood of the embodiment of the present invention, the auxiliary fan works to generate an air flow, and the air flow is blown out through the air outlet, thereby driving the flow of the air flow surrounded by the oil collecting hood to cover the space surrounded by the inner cover of the oil collecting hood. The negative pressure is formed inside, which can promote the flow of the soot during the working of the oil collecting hood, so as to achieve the purpose of strong suction of the range hood and improve the soot effect of the range hood.

The oil collecting filter cover is provided with an oil guiding surface, and the oil collecting member is disposed under the oil collecting filter cover. After the oil smoke is separated and filtered by the oil collecting filter cover, the flue gas is sucked into the air outlet channel by the fan system, and is discharged to the air duct. Outdoorly, the filtered oil is guided by gravity along the oil guiding surface to the oil collecting member and can be stored in the oil collecting member, so that the cooking stove and the food are clean and tidy without being contaminated.

In addition, the range hood according to the embodiment of the present invention may further have the following additional technical features:

According to some embodiments of the invention, the hood is formed in a flared shape with an opening downward.

Optionally, the inner cover and the outer cover of the hood are rotated around an axis thereof by an angle of less than 360°.

Further, the inner cover and the outer cover extend 180° about their axes.

Optionally, the angle at which the outer cover is inclined with respect to the horizontal direction is θ, 0° ≤ θ ≤ 90°.

Optionally, a cross section of the lower end of the outer cover is formed into a superior arc shape, a cross section of the lower end of the inner cover is formed into a poor arc shape, and a lower end of the inner cover is disposed in a lower end of the outer cover and the outer cover The air outlets are formed to be spaced apart.

Further, an angle between the tangential direction of the air outlet and the horizontal plane is φ, 0° < φ ≤ 90°.

Optionally, the oil collecting filter cover is formed into an inverted cone shape, and a lower surface of the oil collecting filter cover is formed as the oil guiding surface.

Optionally, the oil collecting filter cover is disposed coaxially with the oil collecting hood.

Optionally, the oil guiding surface is provided with a plurality of oil guiding grooves arranged along the circumferential direction thereof and extending along an inclined direction of the oil guiding surface.

Optionally, the oil collecting member is connected to the lower end of the oil collecting filter cover and disposed coaxially with the oil collecting filter cover, and the oil collecting member is formed in an open disk shape.

Optionally, the cross-sectional area of the auxiliary air duct gradually increases from the top to the bottom.

The additional aspects and advantages of the invention will be set forth in part in the description which follows.

DRAWINGS

1 is a schematic structural view of a range hood according to an embodiment of the present invention;

2 is a partial enlarged view of a hood of a range hood according to an embodiment of the present invention;

3 is a schematic structural view of a range hood according to an embodiment of the present invention;

4 is a perspective view of a range hood of another angle in accordance with an embodiment of the present invention.

Description of the reference signs:

100: Range hood;

1: body;

2: fan system;

3: oil hood, 31: inner cover, 32: outer cover, 321: air inlet, 33: auxiliary air duct, 331: air outlet, 34: air duct;

4: oil collecting filter cover, 41: oil guiding surface, 411: oil filtering hole, 412: oil guiding groove;

5: Oil collecting parts.

detailed description

Embodiments of the invention are described in detail below, examples of which are illustrated in the accompanying drawings. 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 "center", "longitudinal", "lateral", "upper", "lower", "front", "back", "left", "right", " The orientation or positional relationship of the indications of vertical, horizontal, top, bottom, inner, outer, axial, radial, circumferential, etc. The orientation or the positional relationship is merely for the purpose of describing the present invention and the simplified description, and is not intended to indicate or imply that the device or component referred to has a specific orientation, is constructed and operated in a specific orientation, and therefore is not to be construed as limiting the invention. .

Moreover, 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 at least one of the features, either explicitly or implicitly. In the description of the present invention, the meaning of "a plurality" is at least two, such as two, three, etc., unless specifically defined otherwise.

In the present invention, the terms "installation", "connected", "connected", "fixed" and the like shall be understood broadly, and may be either a fixed connection or a detachable connection, unless explicitly stated and defined otherwise. Or in one piece; it may be a mechanical connection, or it may be an electrical connection or a communication with each other; it may be directly connected or indirectly connected through an intermediate medium, and may be an internal connection of two elements or an interaction relationship between two elements. Unless otherwise expressly defined. 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.

A range hood 100 according to an embodiment of the present invention will now be described with reference to the accompanying drawings.

As shown in FIG. 1 to FIG. 4, the range hood 100 according to an embodiment of the present invention may include: a body 1, a fan system 2, a hood hood 3, an auxiliary fan (not shown), an oil collection filter cover 4, and a set. Oil 5 .

Specifically, the fan system 2 is connected to the body 1 and is adapted to generate an air flow, and the hood 3 is connected to the body 1. The hood 3 defines a duct 34 that communicates with the fan system 2, and the hood 3 includes spaced apart arrangements. The inner cover 31 and the outer cover 32 define an auxiliary air passage 33 between the inner cover 31 and the outer cover 32. The outer cover 32 is provided with an air inlet 321 which is electrically connected to the auxiliary air passage 33. The inner cover 31 and the bottom of the outer cover 32 are spaced apart from each other. The air outlet 331 is connected to the air duct 34, and the auxiliary fan is disposed in the auxiliary air duct 33 to generate airflow. The oil collecting filter cover 4 is disposed in the air duct 34 and located at the top of the air duct 34. The oil collecting filter cover 4 is disposed on the oil collecting filter cover 4. The oil guiding surface 41 of the oil guide oil is disposed downward, and the oil collecting member 5 is disposed below the oil collecting filter cover 4 to receive the oil derived from the oil guiding surface 41.

As shown in FIG. 1 to FIG. 4, the hood 3 may include an inner cover 31 and an outer cover 32. An auxiliary air passage 33 is defined between the inner cover 31 and the outer cover 32. The auxiliary fan is disposed in the auxiliary air passage 33, and the outer cover 32 is disposed. An air inlet 321 is provided, and the air inlet 321 communicates with the auxiliary passage. The bottom of the inner cover 31 and the bottom of the outer cover 32 are spaced apart to form an air outlet 331. The air outlet 331 communicates with the auxiliary air passage 33 and the air passage 34, respectively. Thus, the auxiliary air blower can generate an auxiliary air flow. Specifically, the auxiliary air flow flows from the air inlet 321 on the outer cover 32 to the auxiliary air passage 33, and is guided to the air outlet 331 through the auxiliary air passage 33, and finally blows out from the air outlet 331 to assist When the airflow is blown out from the air outlet 331, the flow of the air flowing to the hood 3 can be driven to form a negative pressure in the space surrounded by the inner cover 31 of the hood 3, thereby promoting the operation of the hood 3. The flow of the soot at the time to achieve the purpose of the strong suction of the range hood 100 to improve the soot effect of the range hood 100.

The oil collecting filter cover 4 is disposed in the air duct 34 and located at the top of the air duct 34. Under the action of the fan system 2, the soot flows upward through the oil collecting filter cover 4 through the oil collecting filter cover 4 to separate and filter the soot. The oil filter cover 4 is provided with an oil guiding surface 41. The oil collecting member 5 is disposed below the oil collecting filter cover 4. The oil guiding surface 41 can guide oil in a direction from the top to the bottom and can guide the oil to the oil collecting member 5. The oil collecting member 5 can carry oil stains. That is, the soot is sucked into the air duct 34 by the fan system 2, separated and filtered by the oil collecting filter cover 4, and discharged to the outside, and the filtered oil stain is guided by gravity to the oil collecting member 5 along the oil guiding surface 41 and It can be stored in the oil collecting member 5.

According to the range hood 100 of the embodiment of the present invention, the auxiliary fan operates to generate an air flow, and the air flow is blown out through the air outlet 331, so that the flow of the air flow surrounded by the hood 3 can be driven to cover the inner cover of the hood 3. A negative pressure is formed in the space surrounded by 31, which can promote the flow of the soot during the operation of the oil collecting hood 3, so as to achieve the purpose of the strong suction of the range hood 100, and improve the soot effect of the range hood 100.

The oil collecting filter cover 4 is provided with an oil guiding surface 41. The oil collecting member 5 is disposed below the oil collecting filter cover 4. After the oil smoke is separated and filtered by the oil collecting filter cover 4, the flue gas is sucked out by the fan system 2. The air duct 34 is arranged side by side to the outside, and the filtered oil is guided by gravity along the oil guiding surface 41 to the oil collecting member 5 and can be stored in the oil collecting member 5, so that the cooking stove and the food are clean and tidy. Pollution.

In some embodiments of the invention, the hood 3 may be formed as a flared opening. In other words, the opening of the hood 3 shrinks in a downward-to-up direction, and the lower end opening of the hood 3 faces the stove. Under the action of the fan system 2, the soot generated by the stove can flow to the opening of the hood 3. The flue gas can be better sucked along the air duct 34 of the oil collecting hood 3 through the flared oil collecting hood 3. As shown in FIG. 1, FIG. 3 and FIG. 4, the inner cover 31 and the outer cover 32 of the hood 3 may be formed in a flared shape, and the outer cover 32 is disposed on the outer side of the inner cover 31 and defines an auxiliary wind between the inner cover 31 and the inner cover 31. Road 33.

Optionally, the oil collecting filter cover 4 is formed into an inverted cone shape, and the lower surface of the oil collecting filter cover 4 is formed as an oil guiding surface 41, thereby facilitating the oil stained by the oil collecting filter cover 4 to flow downward along the oil guiding surface 41. Oil collecting member 5. As shown in FIG. 4, the lower end of the inverted cone of the oil collecting filter cover 4 is connected to the oil collecting member 5, and the lower surface of the oil collecting filter cover 4 is formed as an inverted tapered surface, that is, the oil guiding surface 41 is formed as an inverted tapered surface. Therefore, the filtered oil flows along the oil guiding surface 41 and converges to the lower end of the oil collecting filter 4, and finally flows into the oil collecting member 5.

In the example shown in FIG. 4, the upper end of the oil collecting filter cover 4 can extend radially outward, and the oil collecting hood 3 is connected to the outer edge of the oil collecting filter cover 4, and can be arranged at the upper portion of the oil collecting filter cover 4. There are a plurality of rows of oil filtering holes 411, and each of the oil filtering holes 411 includes a plurality of oil filtering holes 411. The plurality of oil filtering holes 411 are spaced apart along the circumferential direction of the oil collecting filter cover 4, and the plurality of oil filtering holes 411 are along the oil collecting. The filter cover 4 extends in the radial direction. The soot flows upward through the plurality of oil filtering holes 411.

The air duct 34 is defined by the oil collecting hood 3, and the oil smoke flows through the air duct 34 to the fan system 2, and is separated and filtered through the oil collecting filter cover 4. Advantageously, the oil collecting filter cover 4 and the oil collecting hood 3 are coaxially disposed, thereby The structure of the oil collecting hood 3 and the oil collecting filter cover 4 is made more compact, and the oil smoke is also flowed along the air channel 34 to the oil collecting filter cover 4, so that the filtered oil is heavy. The force flows to the oil collecting member 5.

In some examples of the present invention, as shown in FIG. 4, the oil guiding surface 41 may be provided with a plurality of oil guiding grooves 412 which are spaced apart in the circumferential direction thereof and extend in the oblique direction of the oil guiding surface 41. In other words, the oil guiding surface 41 is provided with a plurality of oil guiding grooves 412, and the plurality of oil guiding grooves 412 are spaced apart in the circumferential direction of the oil guiding surface 41, and each of the oil guiding grooves 412 extends in the oblique direction of the oil guiding surface 41. Therefore, the filtered oil can flow into the oil groove 412 and can flow along the extending direction of the oil guiding groove 412. The oil guiding can be guided downward through the plurality of oil guiding grooves 412 and concentrated to the lower end of the oil collecting filter cover 4, and finally flow direction Oil collecting member 5.

As shown in FIG. 4, the oil collecting member 5 is connected to the lower end of the oil collecting filter cover 4 and coaxially disposed with the oil collecting filter cover 4, so that the oil collecting filter cover 4, the oil collecting hood 3 and the oil collecting member 5 can be further structured. Compact and stable, it also facilitates the flow of filtered oil to the oil collecting member 5. The oil collecting member 5 is formed in a disk shape with an opening upward, which is advantageous for carrying oil stains. As shown in FIG. 1 , FIG. 3 and FIG. 4 , the intermediate portion of the oil collecting member 5 is recessed downward to define a receiving chamber for containing oil, and the oil flows through the opening to the oil collecting member 5 and can be stored in the oil collecting member 5 by This can increase the receiving area of the oil collecting member 5 to receive the oil stain, so as to ensure that the oil stain falls on the oil collecting member 5, thereby further ensuring that the cooking pot and the food are clean and tidy without being contaminated.

Alternatively, the inner cover 31 and the outer cover 32 of the hood 3 may be rotated by an angle of less than 360° about their axes. That is, the angle of the range hood 3 extending in the circumferential direction is less than 360°. Thereby, the material cost of the oil collecting hood 3 can be reduced while ensuring the effect of the oil collecting smoke of the oil collecting hood 3, and the aesthetics of the oil collecting hood 3 can be ensured. Preferably, inner shroud 31 and outer shroud 32 are rotatable 180° about their axis. Therefore, the effect of the oil collecting smoke of the oil collecting hood 3 can be further ensured, and the material cost of the oil collecting hood 3 can be further reduced, and the aesthetics of the oil collecting hood 3 can be ensured.

Alternatively, the angle at which the outer cover 32 is inclined with respect to the horizontal direction may be θ, 0° ≤ θ ≤ 90°. In other words, the outer cover 32 is inclined with respect to the horizontal direction, and the outer cover 32 is inclined from the top to the bottom. Thereby, it is advantageous to form the hood 3 in a flared shape, and it is also advantageous to draw air from the air inlet 321 to form an air flow. Further, the angle θ at which the outer cover 32 is inclined with respect to the horizontal direction may satisfy 30° ≤ θ ≤ 60°.

Alternatively, the lower end of the outer cover 32 may be formed in a substantially arc shape, and the lower end of the inner cover 31 may be formed in a poor arc shape. The lower end of the inner cover 31 is disposed in the lower end of the outer cover 32 and spaced apart from the outer cover 32. Air outlet 331. As shown in FIG. 2, the lower end of the outer cover 32 is curved inwardly to form a superior arc shape, that is, the lower end of the outer cover 32 is formed in an arc shape and the arc of the arc is larger than the arc of the semicircle, and the lower end of the inner cover 31 is bent outward to form an arc. The curved arc of the shape is smaller than the arc of the semicircle, and the lower end of the inferior arc of the inner cover 31 is located in the lower end of the superior arc of the outer cover 32. Thereby, the lower end of the inner cover 31 and the lower end of the outer cover 32 are spaced apart to form the air outlet 331. When the airflow flows out of the air outlet 331, the airflow can flow along the inner wall of the inner cover 31, so that the oil smoke surrounded by the inner cover 31 can be driven. The flow.

Advantageously, the angle between the tangential direction of the air outlet 331 and the horizontal plane may be φ, 0° < φ ≤ 90°. That is, the tangential direction of the air outlet 331 is inclined with respect to the horizontal direction. When the airflow is blown out from the air outlet 331, the airflow is blown along the tangential direction of the air outlet 331, so that when the airflow is blown out from the air outlet 331, the flow of the soot surrounded by the inner cover 31 can be driven, and the oil smoke can be caused to flow toward the air passage 34 to enhance The smoking range of the range hood 100 is strong.

Alternatively, the cross-sectional area of the auxiliary duct 33 may gradually increase from the top to the bottom. Thereby, not only the formation of the flared structure of the hood hood 3 but also the cross-sectional area of the lower end of the auxiliary duct 33 is larger than the cross-sectional area of the upper end of the auxiliary duct 33, and thus, at the lower end of the auxiliary duct 33 The air is enlarged to facilitate the auxiliary fan to perform air amplification through the end structure of the lower end of the auxiliary air passage 33 to blow strong wind, and a negative pressure is formed on the soot area of the hood 3 to facilitate the suction of the soot.

In the present invention, the first feature "on" or "under" the second feature may be a direct contact of the first and second features, or the first and second features may be indirectly through an intermediate medium, unless otherwise explicitly stated and defined. contact. Moreover, the first feature "above", "above" and "above" the second feature may be that the first feature is directly above or above the second feature, or merely that the first feature level is higher than the second feature. The first feature "below", "below" and "below" the second feature may be that the first feature is directly below or obliquely below the second feature, or merely that the first feature level is less than the second feature.

In the description of the present specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" and the like means a specific feature described in connection with the embodiment or example. A structure, material or feature is included in at least one embodiment or example of the invention. In the present specification, the schematic representation of the above terms is not necessarily directed 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. In addition, various embodiments or examples described in the specification, as well as features of various embodiments or examples, may be combined and combined.

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 variations, modifications, substitutions and variations.

Claims

A range hood, characterized in that it comprises:

Body

a fan system coupled to the body and adapted to generate an air flow;

a hood, the hood is connected to the body, the hood defining a duct communicating with the fan system, the hood comprising an inner cover and a cover spaced apart, the inner An auxiliary air passage is defined between the cover and the outer cover, and the outer cover is provided with an air inlet communicating with the auxiliary air passage, and the inner cover and the bottom of the outer cover are spaced apart from the air guide Passing through the air outlet;

An auxiliary fan disposed in the auxiliary air duct to generate an air flow;

An oil collecting filter cover, the oil collecting filter cover is disposed in the air duct and located at the top of the air duct, and the oil collecting filter cover is provided with an oil guiding surface for guiding oil downward;

An oil collecting member is disposed under the oil collecting filter cover to receive oil derived from the oil guiding surface.
A range hood according to claim 1, wherein said hood is formed in a flared shape with an opening downward.
The range hood according to claim 2, wherein said inner shroud and said outer shroud of said hood are rotated about an axis thereof by an angle of less than 360°.
A range hood according to claim 3 wherein said inner shroud and said outer shroud extend 180° about their axis.
The range hood according to claim 2, wherein the angle at which the outer cover is inclined with respect to the horizontal direction is θ, 0° ≤ θ ≤ 90°.
A range hood according to claim 2, wherein a cross section of the lower end of the outer cover is formed in a superior arc shape, a cross section of the lower end of the inner cover is formed in a poor arc shape, and a lower end of the inner cover is provided at The air outlet is formed in the lower end of the outer cover and spaced apart from the outer cover.
The range hood according to claim 6, wherein an angle between a tangential direction of the air outlet and a horizontal plane is φ, 0° < φ ≤ 90°.
The range hood according to claim 2, wherein the oil collecting filter cover is formed in an inverted cone shape, and a lower surface of the oil collecting filter cover is formed as the oil guiding surface.
The range hood according to claim 8, wherein the oil collecting filter cover is disposed coaxially with the oil collecting hood.
A range hood according to claim 8, wherein said oil guiding surface is provided with a plurality of oil guiding grooves which are spaced apart in the circumferential direction and extend in the oblique direction of said oil guiding surface.
The range hood according to claim 8, wherein the oil collecting member is connected to a lower end of the oil collecting filter cover and disposed coaxially with the oil collecting filter cover, and the oil collecting member is formed as an opening. Upward disk shape.
A range hood according to any one of claims 2 to 11, wherein the sectional area of the auxiliary duct gradually increases from the top to the bottom.