Range hood

Abstract

The present invention provides a range hood, comprising a fume collecting hood, wherein the fume collecting hood comprises a plurality of air inlets for sucking in oil fume, and the air inlets are located on the upper end surface of the fume collecting hood. In the process of sucking in oil fume, a part of the grease in the oil fume is separated by using deflection separation, thereby avoiding the problem that a large amount of grease enters the air inlet and causes blockage, thereby reducing the working efficiency of the range hood. Since the air inlet is located on the upper end surface of the air collecting hood and is in a relatively hidden state, it is avoided that a large amount of grease accumulates at the air inlet for a long time, and even the oil stains in the fume collecting hood drip out from the air inlet, thereby affecting the appearance of the product.

Description

Technical Field

[0001] The invention relates to the field of kitchen equipment, in particular to a range hood. Background Art

[0002] The air inlets of the range hoods currently sold on the market are basically facing downwards towards the stove top, and the oil nets at the air inlet are also facing downwards, so the fumes generated by cooking directly enter the fan through the mesh holes. With this structure, the grease separation effect is limited, and long-term use will affect the performance of the fan. At the same time, the oil inside the range hood or the oil on the oil net will drip onto the countertop, affecting the user experience and the reputation of the product. Summary of the invention

[0003] The object of the present invention is to provide a range hood to improve the grease separation degree of oil smoke during the inhalation process, while avoiding the defect of poor product appearance caused by long-term accumulation of a large amount of grease at the air inlet and even oil stains in the smoke hood dripping out of the air inlet.

[0004] The range hood provided by the present invention comprises a fume collecting hood, wherein the fume collecting hood comprises a plurality of air inlets for inhaling oil fume, and the air inlets are located on the upper end surface of the fume collecting hood.

[0005] Furthermore, an oil net for filtering oil stains is provided at the air inlet, and the oil net is detachably connected to the smoke collecting hood.

[0006] Furthermore, the air inlet is arranged along the edge of the upper end surface of the smoke collecting hood, and a plurality of the air inlets are arranged at intervals.

[0007] Furthermore, the plurality of air inlets are arranged in a U shape.

[0008] Furthermore, the range hood further comprises a baffle, wherein there is a gap between the baffle and the upper end surface of the fume collecting hood, and at least a portion of the baffle is located directly above the air inlet.

[0009] Furthermore, the range hood further comprises a box assembly, which comprises a box and a fan assembly located in the box, the air inlet is communicated with the fan assembly, and the box is fixedly connected to the upper end surface of the smoke hood.

[0010] Furthermore, a cavity is provided in the smoke hood, and the cavity is connected to the air inlet and the fan assembly respectively. The lower end surface of the smoke hood is provided with an oil leakage hole, and the oil leakage hole is connected to the cavity. The inner wall of the lower end surface of the cavity is inclined, and the oil leakage hole is located at the lowest point of the inner wall of the lower end surface of the cavity.

[0011] Furthermore, the lower end surface of the smoke collecting hood is inclined.

[0012] Furthermore, the lower end surface of the smoke collecting hood is parallel to the inner wall of the lower end surface of the cavity, and an oil cup for cooperating with the oil leakage hole is provided at a corresponding position of the lower end surface of the smoke collecting hood.

[0013] Furthermore, the range hood comprises a mounting end and an operating end, and the lower end surface of the fume hood gradually slopes downward from the mounting end to the operating end.

[0014] Furthermore, the length of the oil cup is equal to the width of the fume hood at the mounting end.

[0015] Beneficial effects:

[0016] The range hood provided by the present invention collides with the lower end surface of the smoke collecting hood during the process of oil smoke inhalation, and the oil smoke flow rate is reduced and the flow direction is changed, and it flows close to the lower end surface. During the flow process, part of the oil in the oil smoke adheres to the lower end surface of the smoke collecting hood, while the oil smoke continues to flow and eventually bypasses the smoke collecting hood and enters the air inlet. The part of the oil in the oil smoke is separated by the baffle separation principle, thereby avoiding the problem of a large amount of oil entering the air inlet and clogging it, causing the range hood to reduce its working efficiency. Since the air inlet is located on the upper end surface of the air collecting hood and is in a relatively hidden state, it is avoided that a large amount of oil accumulates at the air inlet for a long time, and even the oil in the smoke collecting hood drips out from the air inlet, affecting the appearance of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the specific implementation methods of the present invention or the technical solutions in the prior art, the drawings required for use in the specific implementation methods or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some implementation methods of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0018] Figure 1 A schematic diagram of the structure of a range hood provided by an embodiment of the present invention;

[0019] Figure 2 A schematic diagram of a fume suction path of a range hood provided by an embodiment of the present invention;

[0020] Figure 3 Another structural schematic diagram of a range hood provided by an embodiment of the present invention;

[0021] Figure 4 A top view of a range hood provided in an embodiment of the present invention.

[0022] Icons: 1-box; 2-air inlet; 3-baffle; 4-fume hood; 5-oil cup; 6-partition; 7-oil accumulation surface; 8-oil leakage hole; 9-fan assembly; 10-installation end; 11-operation end. DETAILED DESCRIPTION

[0023] The technical solution of the present invention will be clearly and completely described below in conjunction with the embodiments. Obviously, the described embodiments are part of the embodiments of the present invention, rather than all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the present invention.

[0024] Example

[0025] according to Figures 1 to 4 The range hood shown includes a fume hood 4, which includes a plurality of air inlets 2 for sucking oil smoke, and the air inlets 2 are located on the upper end surface of the fume hood 4. In this solution, the air inlet 2 is set on the upper end surface of the fume hood 4. When the oil smoke is subjected to the negative pressure at the air inlet 2 and is sucked from the bottom of the range hood to the air inlet 2, the oil smoke is separated by the principle of deflection, so that the oil smoke is left on the plane after hitting the lower end surface of the fume hood 4, and the oil smoke changes direction and diffuses around, and finally gathers at the upper end surface of the fume hood 4 and enters the air inlet 2. Compared with the traditional air inlet 2 located at the lower end surface of the fume hood 4, the oil smoke is directly sucked into the air inlet 2 by the negative pressure at the air inlet 2. In this solution, a part of the oil smoke is separated during the process of oil smoke inhalation, thereby avoiding the problem that a large amount of oil enters the air inlet 2 and is retained in the fume hood 4 and on the turbine that provides power as the temperature drops, causing the turbine to work less efficiently. Since the air inlet 2 is located at the upper end surface of the air collecting hood and is in a relatively hidden state, it avoids the defect that a large amount of grease accumulates at the air inlet 2 for a long time or even the oil in the smoke collecting hood 4 drips out from the air inlet 2, affecting the appearance of the product.

[0026] In an optional embodiment, an oil net for filtering oil stains is provided at the air inlet 2, and the oil net is detachably connected to the fume hood. The oil net can be repeatedly disassembled and assembled for easy replacement and cleaning.

[0027] In an optional embodiment, the air inlet 2 is arranged along the edge of the upper end surface of the smoke collecting hood 4, and a plurality of air inlets are arranged at intervals.

[0028] In an optional embodiment, a plurality of air inlets 2 are arranged in a U-shape. Since the oil smoke changes direction and diffuses around after hitting the lower end surface of the smoke hood 4, and one side of the range hood is close to the installed cavity, the oil smoke can only diffuse upward from the other three edges of the smoke hood 4. In this solution, the air inlets 2 are arranged near the three edges of the upper end surface of the smoke hood 4, which can increase the contact area between the air inlet 2 and the oil smoke, thereby improving the oil smoke suction efficiency of the air inlet 2.

[0029] In an optional embodiment, the range hood further comprises a baffle 3, and there is a gap 6 between the baffle 3 and the upper end surface of the smoke hood 4, and at least a portion of the baffle 3 is located directly above the air inlet 2. The baffle 3 is located above the smoke hood 4, and there is a gap 6 between the baffle 3 and the upper end surface of the smoke hood 4 to facilitate the passage of oil smoke. The function of the baffle 3 is to provide secondary deflection separation, and the oil smoke rises from the edge of the smoke hood 4 and hits the lower end surface of the baffle 3, and a part of the grease remains on the plane here, and the oil smoke changes direction and diffuses to the surroundings, and when it diffuses to the air inlet 2, it is sucked into the smoke hood 4.

[0030] In an optional embodiment, the range hood further includes a box assembly, which includes a box 1 and a fan assembly 9 located in the box 1, the air inlet 2 is connected to the fan assembly 9, and the box 1 is fixedly connected to the upper end surface of the fume hood 4. The fan assembly 9 is arranged in the box 1, and a negative pressure state is provided at the air inlet 2 through the turbine in the fan assembly 9, so that the oil smoke is sucked in and discharged through the pipeline in the box 1.

[0031] In an optional embodiment, a cavity for accumulating oil dirt while passing through the airflow is provided in the smoke hood 4, and the cavity is connected to the air inlet 2 and the fan assembly 9 respectively. The lower end face of the smoke hood 4 is provided with an oil leakage hole 8, and the oil leakage hole 8 is connected to the cavity. The inner wall of the lower end face of the cavity is inclined, and the oil leakage hole 8 is located at the lowest point of the inner wall of the lower end face of the cavity. The function of the cavity is to pass the oil smoke and accumulate the oil in the oil smoke. The oil in the cavity is discharged from the oil leakage hole 8. Since the oil has a high viscosity and is not easy to flow, a certain inclination angle is set on the inner wall of the lower end face of the cavity. The angle between the lower end face of the cavity and the horizontal plane is 10°-30°, and the oil leakage hole 8 is located at the lowest point of the lower end face, so as to discharge the oil in the cavity in time.

[0032] In an optional embodiment, the lower end surface of the smoke hood 4 is inclined. The lower end surface of the smoke hood 4 is adhered to grease left over from the fume baffle separation process. In this solution, the lower end surface of the smoke hood 4 is set to be inclined so that the grease can be attracted by the adsorption force on the lower end surface of the smoke hood 4 and does not drip, but flows to the lowest point for easy cleaning.

[0033] In an optional embodiment, the lower end surface of the smoke hood 4 is parallel to the inner wall of the lower end surface of the cavity, and an oil cup 5 for matching the oil leakage hole 8 is provided at a corresponding position of the lower end surface of the smoke hood 4. The lower end surface of the smoke hood 4 is parallel to the lower end surface of the cavity, so that the grease inside and outside can flow to the same side of the smoke hood 4, the grease in the cavity flows from the oil leakage hole 8 to the oil cup 5, and the grease on the lower end surface of the smoke hood 4 flows from the corresponding opening of the oil cup 5 to the oil cup 5.

[0034] In an optional embodiment, the range hood includes a mounting end 10 that is attached to the mounting surface during installation and an operating end 11 that is close to the operator during operation, and the lower end surface of the fume hood 4 gradually tilts downward from the mounting end 10 to the operating end 11. The lower end surface of the fume hood 4 at the mounting end 10 close to the operator is higher than the other end, and the space left under the fume hood 4 is convenient for the operator to operate under the range hood. At the same time, the oil cup 5 is located at the mounting end 10 to avoid interference with the operator.

[0035] In an optional embodiment, the length of the oil cup 5 is equal to the width of the fume hood 4 at the mounting end 10, so as to facilitate the collection of grease flowing from the lower end surface of the entire fume hood 4 to the mounting surface.

[0036] When the range hood is running, oil smoke is generated from the cooking utensils below, and the operation of the fan assembly 9 makes the air inlet 2 in a negative pressure state. The airflow around the range hood is sucked into the air inlet 2, driving the oil smoke from below to the smoke collecting hood 4. When the oil smoke first hits the lower end surface of the smoke collecting hood 4, the lower end surface of the smoke collecting hood 4 serves as the main oil accumulation surface 7, causing the oil smoke to be deflected and separated. Part of the oil in the oil smoke remains on the lower end surface of the smoke collecting hood 4, and the other part of the oil changes direction with the oil smoke and diffuses around. Since the range hood includes an operating end 11 facing the operator and a mounting end 10 that is attached to the wall during installation, the mounting end 10 is attached to the wall, so the oil smoke cannot diffuse from the edge of this end, and the oil smoke from the other end is discharged. The three edges of the oil fume diffuse upward. When the oil fume hits the lower end face of the baffle 3 during the rising process, a second deflection separation occurs. At this time, part of the grease remains on the lower end face of the baffle 3, and the rest continues to change direction and diffuse around with the oil fume. There is a gap 6 between the baffle 3 and the upper end face of the smoke hood 4, thus forming a relatively closed space. The oil fume in this space is affected by the negative pressure in the air inlet 2 located at the upper end face of the smoke hood 4, and is sucked into the cavity in the air inlet 2. The oil fume hits the inner wall of the cavity in the cavity, and part of the grease remains on the inner wall of the cavity. The oil fume enters the pipeline in the box 1 from the cavity, and is finally sucked to the outside by the fan assembly 9, achieving the effect of exhausting oil fume. The grease remaining in the cavity flows from the inner wall of the lower end face of the cavity to the lower part near the mounting end 10, and finally drips from the oil leakage hole 8 into the oil cup 5. The grease remaining on the lower end face of the smoke hood 4 also flows to the side near the mounting end 10, and finally drips into the oil cup 5.

[0037] In the description of the embodiments of the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal communication of two components. For those skilled in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0038] In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0039] Finally, it should be noted that the above embodiments are only specific implementations of the present invention, which are used to illustrate the technical solutions of the present invention, rather than to limit them. The protection scope of the present invention is not limited thereto. Although the present invention is described in detail with reference to the above embodiments, those skilled in the art should understand that any person skilled in the art can still modify the technical solutions recorded in the above embodiments within the technical scope disclosed by the present invention, or can easily think of changes, or make equivalent replacements for some of the technical features therein; and these modifications, changes or replacements do not make the essence of the corresponding technical solutions deviate from the spirit and scope of the technical solutions of the embodiments of the present invention, and should be included in the protection scope of the present invention. Therefore, the protection scope of the present invention shall be based on the protection scope of the claims.

Claims

1. A range hood, characterized in that: Comprising a smoke collecting hood (4), the smoke collecting hood (4) comprising a plurality of air inlets (2) for inhaling oil smoke, the air inlets (2) being located on the upper end surface of the smoke collecting hood (4), and the air inlets (2) being arranged along the edge of the upper end surface of the smoke collecting hood (4); The range hood further comprises a baffle (3), a gap (6) being present between the baffle (3) and an upper end surface of the fume collecting hood (4), and at least a portion of the baffle (3) being located directly above the air inlet (2); The baffle plate (3) is located above the smoke collecting hood (4), and there is a gap (6) between the baffle plate (3) and the upper end surface of the smoke collecting hood (4); The range hood further comprises a box assembly, the box assembly comprising a box (1) and a fan assembly (9) located in the box (1), the air inlet (2) being in communication with the fan assembly (9), and the box (1) being fixedly connected to the upper end surface of the fume collecting hood (4); A cavity is provided in the smoke collecting hood (4), the cavity is in communication with the air inlet (2), and the cavity is in communication with the fan assembly (9).

2. The range hood according to claim 1, characterized in that: An oil net for filtering oil stains is provided at the air inlet (2), and the oil net is detachably connected to the fume hood.

3. The range hood according to claim 1, characterized in that: The plurality of air inlets (2) are arranged at intervals.

4. The range hood according to claim 3, characterized in that: The plurality of air inlets (2) are arranged in a U shape.

5. The range hood according to claim 1, characterized in that: The lower end surface of the smoke collecting hood (4) is provided with an oil leakage hole (8), the oil leakage hole (8) is connected to the cavity, the lower end surface of the cavity is inclined, and the oil leakage hole (8) is located at the lowest point of the inner wall of the lower end surface of the cavity.

6. The range hood according to claim 5, characterized in that: The lower end surface of the smoke collecting hood (4) is inclined.

7. The range hood according to claim 6, characterized in that: The lower end surface of the smoke collecting hood (4) is parallel to the inner wall of the lower end surface of the cavity, and an oil cup (5) for cooperating with the oil leakage hole (8) is provided at a corresponding position of the lower end surface of the smoke collecting hood (4).

8. The range hood according to claim 7, characterized in that: The range hood comprises a mounting end (10) and an operating end (11), and a lower end surface of the fume collecting hood (4) gradually slopes downward from the operating end (11) to the mounting end (10).

9. The range hood according to claim 8, characterized in that: The length of the oil cup (5) is equal to the width of the smoke collecting hood (4) at the mounting end (10).

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