Oil drop dripping prevention structure and range hood

Abstract

The utility model relates to the technical field of range hoods, in particular to an oil drop dripping prevention structure and a range hood. The oil drop dripping prevention structure comprises an oil baffle plate and / or shutter holes. The oil baffle plate is obliquely arranged below a top plate of a case of the range hood, the lower second side of the oil baffle plate extends to a side plate of the case, and at least part of screw holes in the top plate are located in a projection area formed by the oil baffle plate, so that oil drops can fall on the oil baffle plate when the oil drops are gathered by screws located in the projection area; and the oil drops are prevented from falling on the exhaust fume collecting hood or the cooking bench. The shutter holes are formed in the top plate of the case of the range hood, one side of each screw hole is correspondingly provided with one shutter hole, and the opening of each shutter hole faces the corresponding screw, so that when the fan works, external air can flow into the case through the shutter holes and directly blow the screws at the corresponding screw holes, oil drops are prevented from being gathered at the tail edges of the screws, and the service life of the fan is prolonged. And oil smoke is prevented from adhering to the top plate.

Description

Technical Field

[0001] The present application relates to the technical field of range hoods, and in particular to an oil dripping prevention structure and a range hood. Background Art

[0002] A range hood generally includes a chassis, an air duct arranged in the chassis, and a fan arranged in the air duct. A power box assembly is usually provided on top of the chassis, and the power box assembly is fastened to the top plate of the chassis by screws. When the fan is working, the oil smoke below the range hood can be sucked into the chassis, and most of the oil smoke will be discharged through the air duct, but some of the oil smoke will still adhere to the top plate of the chassis, and the oil smoke can easily gather into oil droplets at the tail edge of the screw and drip onto the stove below. Utility Model Content

[0003] The utility model aims to provide an oil dripping prevention structure and a range hood, so as to prevent the oil dripping formed by the oil smoke gathering on the screw tail edge of the top plate of the chassis to a certain extent.

[0004] The utility model provides an oil dripping prevention structure for a cabinet of a range hood, wherein the oil dripping prevention structure comprises an oil baffle plate and / or a shutter hole;

[0005] The shutter hole is opened on the top plate of the chassis, and a plurality of screw holes are arranged on the top plate. A shutter hole is arranged on one side of each screw hole, and the opening of the shutter hole faces the corresponding screw hole inside the chassis;

[0006] The oil baffle plate is arranged below the top plate, and has a first side and a second side opposite to each other. The oil baffle plate is inclined so that the first side of the oil baffle plate is higher than the second side of the oil baffle plate, and the first side of the oil baffle plate extends toward the top plate, and the second side of the oil baffle plate extends toward the side plate of the chassis; the oil baffle plate forms a projection area on the top plate, and at least part of the multiple screw holes are located in the projection area.

[0007] Further, the top plate has a first side and a second side opposite to each other, the top plate is tilted, and the first side of the top plate is higher than the second side of the top plate.

[0008] Further, when the oil dripping prevention structure includes an oil baffle plate, the second side of the oil baffle plate is located on the same side as the second side of the top plate, the first side of the oil baffle plate extends toward the first side of the top plate, and at least a plurality of screw holes on the second side of the top plate are located within the projection area.

[0009] Furthermore, the downward tilt angle of the oil baffle plate is not less than the downward tilt angle of the top plate.

[0010] Furthermore, a first flange portion bent downward is provided on the second side of the oil baffle.

[0011] Furthermore, the oil baffle is arranged obliquely along a first direction, and second flange portions bent upward are provided on both sides of the oil baffle in a second direction perpendicular to the first direction.

[0012] Furthermore, the two second flange portions are each provided with a connecting piece, the connecting piece is parallel to and abuts against the top plate and is tightly connected thereto, and the connecting piece extends toward the inner side of the oil baffle plate.

[0013] Furthermore, the screw hole is a flanged screw hole protruding toward the inside of the chassis, and when the oil dripping prevention structure includes a louver hole, the width of the opening end of the louver hole is greater than or equal to the protruding length of the flanged screw hole.

[0014] Further, when the oil dripping prevention structure includes louver holes, the distance between the corresponding screw holes and the louver holes is 5 mm-7 mm.

[0015] The utility model also provides a range hood comprising any one of the above-mentioned oil dripping prevention structures.

[0016] Compared with the prior art, the beneficial effects of the utility model are:

[0017] The oil dripping prevention structure provided by the utility model comprises an oil baffle plate and / or a shutter hole.

[0018] As for the oil baffle plate, it is obliquely arranged below the top plate of the chassis of the range hood, and the lower second side of the oil baffle plate extends to the side plate of one side of the chassis, and the oil baffle plate forms a projection area on the top plate, and the multiple screw holes arranged on the top plate are at least partially located in the projection area; for the screws at the screw holes in the projection area, when oil droplets gather on the rear edge of the screws, the oil droplets will eventually fall onto the oil baffle plate, thereby preventing the oil droplets on the rear edge of the screws from directly falling onto the smoke hood of the range hood or onto the stove below the range hood; and the oil droplets falling on the oil baffle plate, due to the inclined arrangement of the oil baffle plate, the oil droplets will flow along the oil baffle plate to the side plate opposite to the lower end of the oil baffle plate, and then flow downward along the side plate and finally flow into the oil collecting tank of the range hood.

[0019] As for the louver holes, the louver holes are provided on the top plate of the chassis of the range hood, and for the multiple screw holes on the top plate, louver holes are provided at intervals on one side of each screw, and the openings of the louver holes face the corresponding screw holes in the chassis. When the fan of the range hood located in the chassis is working, negative pressure is formed in the chassis, and the air outside the chassis can flow into the chassis through the louver holes and eventually be sucked into the fan, and the airflow flowing into the chassis from the louver holes will directly blow toward the screws at the corresponding screw holes, thereby preventing oil droplets from gathering at the trailing edges of the screws to a certain extent, and also preventing oil smoke from attaching to the top plate to a certain extent, so that when the oil smoke attaches upward to the top plate, it will be carried by the airflow flowing in from the louver holes from above and enter the fan together. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the specific implementation methods of the utility model 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 utility model. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 A schematic diagram of the structure of the oil dripping prevention structure (oil baffle) provided in the first embodiment of the utility model in the case of the range hood;

[0022] Figure 2 A schematic diagram of the structure of the oil dripping prevention structure (oil baffle plate) provided in the first embodiment of the utility model on the top plate of the chassis;

[0023] Figure 3 A schematic structural diagram of an oil dripping prevention structure (oil baffle) provided in Embodiment 1 of the present utility model;

[0024] Figure 4 A schematic diagram of the structure of the oil dripping prevention structure (louver hole) provided in the second embodiment of the utility model on the top plate of the chassis;

[0025] Figure 5 It is a partially enlarged schematic diagram of the oil dripping prevention structure (louver hole) provided in the second embodiment of the utility model.

[0026] Reference numerals:

[0027] 1-chassis, 11-top plate, 12-first side plate, 13-second side plate, 14-screw hole;

[0028] 2-oil baffle, 21-first flange portion, 22-second flange portion, 23-connecting piece;

[0029] 3- shutter holes;

[0030] a-first direction, b-second direction. DETAILED DESCRIPTION

[0031] The technical solution of the present utility model will be clearly and completely described below in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present utility model, rather than all of the embodiments.

[0032] The components of the embodiments of the present invention generally described and shown in the drawings herein can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present invention provided in the drawings is not intended to limit the scope of the claimed invention, but merely represents selected embodiments of the present invention.

[0033] Based on the embodiments of the present utility model, all other embodiments obtained by ordinary technicians in the field without making any creative work shall fall within the scope of protection of the present utility model.

[0034] 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.

[0035] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" 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 it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0036] Refer to the following Figures 1 to 5 An oil dripping prevention structure and a range hood according to some embodiments of the present application are described.

[0037] A first aspect of the present application provides an oil dripping prevention structure.

[0038] Embodiment 1

[0039] See also Figures 1 to 3 The present application provides an oil dripping prevention structure, including an oil baffle plate 2, which is used to be arranged in a chassis 1 of a range hood. The chassis 1 includes a top plate 11 at the top and side plates arranged around the top plate 11. The oil baffle plate 2 is arranged below the top plate 11 and has a predetermined inclination angle compared to a horizontal plane, and a higher side of the oil baffle plate 2, i.e., a first side of the oil baffle plate 2, extends toward the top plate 11 of the chassis 1, and a lower side of the oil baffle plate 2, i.e., a second side of the oil baffle plate 2, extends toward a side plate on one side of the chassis 1 (hereinafter referred to as a second side plate 13).

[0040] A plurality of screw holes 14 are provided on the top plate 11 of the chassis 1, and the screw holes 14 are used to insert screws for fixing other components of the range hood on the top plate 11; for example, the power box assembly of the range hood, the power box assembly is arranged above the top plate 11, the power box assembly includes a power box and a power board arranged in the power box, and the power box and the power board are both fixed to the top plate 11 of the chassis 1 by screws, so that a plurality of screws are distributed at intervals on the top plate 11 of the chassis 1.

[0041] The oil baffle plate 2 forms a projection area on the top plate 11 in the vertical direction, and all or part of the screw holes 14 on the top plate 11 are located in the projection area. For the screw holes 14 in the projection area and the screws in the screw holes 14, when the oil smoke attached to the top plate 11 gathers into oil droplets at the rear edge of the screw, the oil droplets will eventually fall onto the oil baffle plate 2, thereby preventing the oil droplets at the rear edge of the screw from directly falling down onto the fume hood of the range hood or onto the stove below the range hood; and the oil droplets falling on the oil baffle plate 2, due to the inclined setting of the oil baffle plate 2, the oil droplets will flow along the oil baffle plate 2 to the side plate opposite to the lower end of the oil baffle plate 2, and then flow downward along the side plate and finally flow into the oil collecting tank of the range hood.

[0042] In this embodiment, preferably, the side panels of the chassis 1 connected to the top plate 11 on opposite sides in the first direction a are respectively the first side panel 12 and the second side panel 13, the higher first side of the oil baffle plate 2 extends to the first side panel 12, and the lower second side of the oil baffle plate 2 extends to the second side panel 13, so that all the screw holes 14 on the top plate 11 and the screws in the screw holes 14 are located within the projection area formed by the oil baffle plate 2.

[0043] Alternatively, when the top plate 11 is tilted, the top plate has a higher first side and a lower second side, the first side plate 12 is located on the higher first side of the top plate 11, and the second side plate 13 is located on the lower second side of the top plate 11; a plurality of screws on the top plate 11, some of which are located on the higher first side of the top plate 11, and another part of which are located on the lower second side of the top plate 11, and the plurality of screws located on the higher first side of the top plate 11 are less likely to gather oil droplets than the plurality of screws located on the lower second side; at this time, the lower second side of the oil baffle plate 2 still extends to the second side plate 13, and the higher first side of the oil baffle plate 2 may not extend to the first side plate 12, but may extend to the middle area of ​​the top plate 11 or a position close to the first side plate 12, so that at least the plurality of screws located on the lower second side of the top plate 11 are located within the projection area formed by the oil baffle plate 2.

[0044] In this embodiment, preferably, for the inclined top plate 11, the oil baffle plate 2 thereunder has the same inclination direction as the top plate 11, that is, the higher first side of the top plate 11 faces the first side plate 12, and the lower second side of the top plate 11 faces the second side plate 13, the higher first side of the oil baffle plate 2 also faces the first side plate 12, and the lower second side of the oil baffle plate 2 faces the second side plate 13; at the same time, the oil baffle plate 2 is parallel to the top plate 11, or the oil baffle plate 2 is inclined downward at a greater angle than the top plate 11, so that the oil droplets falling on the oil baffle plate 2 can flow smoothly along the oil baffle plate 2 to the second side plate 13 connected to the lower end of the oil baffle plate 2.

[0045] In this embodiment, preferably, the lower second side of the oil baffle plate 2, i.e., the side of the oil baffle plate 2 facing the second side plate 13, is provided with a downwardly bent first flange portion 21, so that the oil droplets flowing to the bottom end of the oil baffle plate 2 are guided through the first flange portion 21, so that the oil droplets flow out of the oil baffle plate 2 and continue to flow downward along the second side plate 13.

[0046] In this embodiment, the first flange portion 21 can be parallel to the second side plate 13, or the first flange portion 21 can be gradually inclined from top to bottom (from the main body of the oil baffle 2 to the second side plate 13), and it is only necessary to ensure that a gap is left between the first flange portion 21 and the second side plate 13 for oil dripping out.

[0047] In this embodiment, preferably, the higher first side and the lower second side of the oil baffle plate 2 are two opposite sides in the first direction a, and the oil baffle plate 2 is provided with upwardly bent second flange portions 22 on both sides of the second direction b perpendicular to the first direction a, so that the oil droplets falling on the oil baffle plate 2 can be stopped in the second direction b by the two second flange portions 22, so that the oil droplets falling on the oil baffle plate 2 can flow to the second side plate 13 along the first direction a under the guidance of the oil baffle plate 2.

[0048] In this embodiment, preferably, connecting pieces 23 are provided on the two second flange portions 22, and connecting holes are provided on the two connecting pieces 23; when the oil baffle plate 2 is installed under the top plate 11, the two connecting pieces 23 are abutted against the top plate 11, and corresponding connecting holes are also provided at positions of the top plate 11 relative to the connecting holes of the two connecting pieces 23, so that fasteners can be passed between the connecting pieces 23 and the top plate 11 for fixing.

[0049] Preferably, the two connecting pieces 23 both extend toward the inner side of the oil baffle plate 2 , so that the screws on the two connecting pieces 23 are also within the projection area formed on the oil baffle plate 2 .

[0050] Embodiment 2

[0051] See also Figure 4 and Figure 5The present application provides an oil dripping prevention structure, including a louver hole 3, which is opened on the top plate 11 of the chassis 1 of the range hood. As described in the first embodiment above, a plurality of screw holes 14 are provided on the top plate 11 of the chassis 1 for passing screws to fix other components (such as a power box assembly) on the top plate 11; louver holes 3 are provided at intervals on one side of each screw hole 14, and the openings of the louver holes 3 are located inside the chassis 1 and face the corresponding screw holes 14.

[0052] When the fan of the range hood located in the chassis 1 is working, negative pressure is formed in the chassis 1, and the air outside the chassis 1 can flow into the chassis 1 through the louver holes 3 and be finally sucked into the fan. The airflow flowing into the chassis 1 from the louver holes 3 will directly blow toward the screws at the corresponding screw holes 14, thereby preventing oil droplets from gathering at the trailing edges of the screws to a certain extent, and also preventing oil smoke from attaching to the top plate 11 to a certain extent, so that when the oil smoke attaches upward to the top plate 11, it will be carried into the fan together with the airflow flowing in from the louver holes 3 from above.

[0053] In this embodiment, preferably, the spacing between each screw hole 14 and the corresponding louver hole 3 is 5mm-7mm, so as to facilitate the opening of the louver hole 3 near the screw hole 14 and enable the airflow flowing into the chassis 1 from the louver hole 3 to blow directly to the screw at the corresponding screw hole 14, thereby avoiding the accumulation of oil droplets at the trailing edge of the screw.

[0054] In this embodiment, preferably, Figure 5 As shown, the screw hole 14 on the top plate 11 is a flanged screw hole protruding toward the inside of the chassis 1, and its flange height is h. The louver hole 3 is formed inside the chassis 1 with an opening width d, wherein d is greater than or equal to h, so that the screw hole 14 and the screw in the screw hole 14, especially the trailing edge of the screw, are completely within the direct action range of the airflow blown in by the louver hole 3 to avoid the accumulation of oil droplets at the trailing edge of the screw.

[0055] Embodiment 3

[0056] The present application provides an oil dripping prevention structure, comprising the oil baffle plate 2 of the above-mentioned embodiment 1 and the louver hole 3 of the above-mentioned embodiment 2. The arrangement of the oil baffle plate 2 and the louver hole 3 is referred to above and will not be repeated here.

[0057] Therefore, the louver holes 3 on the top plate 11 can prevent oil smoke from adhering to the top plate 11 to a certain extent, and can also prevent oil droplets from gathering on the trailing edges of the screws on the top plate 11 to a certain extent. At the same time, the oil baffle plate 2 is used to strengthen protection to prevent oil smoke from gathering into oil droplets at the trailing edges of the screws and falling directly onto the smoke hood of the range hood, or directly falling out of the range hood and onto the platform below the range hood.

[0058] The second aspect of the present application provides a range hood, comprising the oil dripping prevention structure of any of the above embodiments, so the range hood has all the beneficial effects of the oil dripping prevention structure, which will not be described in detail here.

[0059] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model has been described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solution deviate from the scope of the technical solution of the embodiments of the utility model.

Claims

1. An oil dripping prevention structure, used for a housing (1) of a range hood; characterized in that: The oil dripping prevention structure comprises an oil baffle plate (2) and / or a shutter hole (3); The shutter hole (3) is opened on the top plate (11) of the chassis (1), and a plurality of screw holes (14) are provided on the top plate (11), and one side of each screw hole (14) is correspondingly provided with the shutter hole (3), and the opening of the shutter hole (3) is inside the chassis (1) and faces the corresponding screw hole (14); The oil baffle plate (2) is arranged below the top plate (11), and has a first side and a second side opposite to each other. The oil baffle plate (2) is arranged tilted so that the first side of the oil baffle plate (2) is higher than the second side of the oil baffle plate (2), and the first side of the oil baffle plate (2) extends toward the top plate (11), and the second side of the oil baffle plate (2) extends toward the side plate of the chassis (1); the oil baffle plate (2) forms a projection area on the top plate (11), and at least part of the plurality of screw holes (14) are located in the projection area.

2. The oil dripping prevention structure according to claim 1, characterized in that: The top plate (11) has a first side and a second side opposite to each other. The top plate (11) is arranged tilted, and the first side of the top plate (11) is higher than the second side of the top plate (11).

3. The oil dripping prevention structure according to claim 2, characterized in that: When the oil-drip-preventing structure includes the oil baffle plate (2), the second side of the oil baffle plate (2) and the second side of the top plate (11) are located on the same side, the first side of the oil baffle plate (2) extends toward the first side of the top plate (11), and at least a plurality of screw holes (14) on the second side of the top plate (11) are located within the projection area.

4. The oil dripping prevention structure according to claim 3, characterized in that: The downward tilt angle of the oil baffle plate (2) is not less than the downward tilt angle of the top plate (11).

5. The oil dripping prevention structure according to claim 1, characterized in that: The second side of the oil baffle plate (2) is provided with a first flange portion (21) bent downward.

6. The oil dripping prevention structure according to claim 1, characterized in that: The oil baffle plate (2) is arranged obliquely along a first direction (a), and the oil baffle plate (2) is provided with second flange portions (22) bent upward on both sides in a second direction (b) perpendicular to the first direction (a).

7. The oil dripping prevention structure according to claim 6, characterized in that: A connecting piece (23) is provided on each of the two second flange portions (22), the connecting piece (23) is parallel to and abuts against the top plate (11) and is tightly connected thereto, and the connecting piece (23) extends toward the inner side of the oil baffle plate (2).

8. The oil dripping prevention structure according to claim 1, characterized in that: The screw hole (14) is a flanged screw hole (14) protruding toward the inside of the chassis (1); when the oil dripping prevention structure includes the louver hole (3), the width of the open end of the louver hole (3) is greater than or equal to the protruding length of the flanged screw hole (14).

9. The oil dripping prevention structure according to claim 1, characterized in that: When the oil dripping prevention structure includes the louver hole (3), the distance between the corresponding screw hole (14) and the louver hole (3) is 5 mm-7 mm.

10. A range hood, characterized in that: The invention comprises the oil dripping prevention structure according to any one of claims 1 to 9.

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