CN215863595U - Box structure of range hood and range hood applying same - Google Patents

Abstract

The utility model discloses a box body structure of a range hood, which comprises a bottom plate positioned at the bottom and side plates positioned at two sides of the bottom plate, and is characterized in that: the lower end of each side plate is bent towards the interior of the box body structure to form a first flanging, the two ends of the bottom plate are respectively provided with a second flanging tightly attached to the first flanging, and the first flanging and the second flanging are fixedly connected through a fastening piece. Also discloses a range hood applying the box body structure. Compared with the prior art, the utility model has the advantages that: the side plates and the bottom plate are fixed from the inside, the number of the screws visible from the outside is small, the processing difficulty of the bottom plate and the side plates can be reduced, and meanwhile, the precision of the overall appearance of the whole machine is improved.

Description

Box structure of range hood and range hood applying same

Technical Field

The utility model relates to an oil fume purification device, in particular to a box body structure of a range hood and the range hood applying the box body structure.

Background

The range hood has become one of the indispensable kitchen household electrical appliances in modern families. The range hood works by utilizing the fluid dynamics principle, sucks and exhausts oil smoke through a centrifugal fan arranged in the range hood, and filters partial grease particles by using a filter screen. The centrifugal fan comprises a volute, an impeller arranged in the volute and a motor driving the impeller to rotate. When the impeller rotates, negative pressure suction is generated in the center of the fan, oil smoke below the range hood is sucked into the fan, accelerated by the fan and then collected and guided by the volute to be discharged out of a room.

Generally, the range hood comprises a top suction type and a side suction type, and a box body of the side suction type range hood, as disclosed in chinese patent application No. 201510756055.X, the box body comprises an integrally formed top back plate and two side plates arranged on two opposite sides of the top back plate, the top back plate comprises a top plate and a bottom plate which are oppositely arranged and a connecting plate for connecting the top plate and the bottom plate, the top back plate is fixedly connected with the two side plates through welding to form the box body, and the two side plates can also be fixedly connected with the top back plate through screw connection or other connection modes.

The existing box body splicing structure can cause oil drop leakage at the splicing position, has higher requirement on processing precision, and can influence the overall appearance due to more exposed screws when being fixed by the screws.

SUMMERY OF THE UTILITY MODEL

The first technical problem to be solved by the utility model is to provide a box body structure of a range hood aiming at the defects in the prior art, which can reduce the plate processing difficulty and improve the overall appearance consistency.

The second technical problem to be solved by the utility model is to provide a range hood with the box structure.

The technical scheme adopted by the utility model for solving the first technical problem is as follows: the utility model provides a range hood's box structure, is including the bottom plate that is located the bottom and the curb plate that is located the bottom plate both sides, its characterized in that: the lower end of each side plate is bent towards the interior of the box body structure to form a first flanging, the two ends of the bottom plate are respectively provided with a second flanging tightly attached to the first flanging, and the first flanging and the second flanging are fixedly connected through a fastening piece.

In order to guide oil drops flowing downwards and avoid the oil drops from flowing to a gap connecting the side plate and the bottom plate, one end, far away from the side plate, of the first flanging is provided with a bevel edge, and the bevel edge is formed by inclining the end part of the first flanging downwards gradually towards the direction far away from the side plate.

In order to further facilitate the oil drop to the gap for connecting the side plate and the bottom plate, the lower end of the bevel edge is lower than the second flanging.

Preferably, the two ends of the bottom plate are respectively bent upwards to form bent portions, the upper ends of the bent portions are bent towards the interior of the box structure to form the second flanges, and the upper ends of the bent portions are abutted to the lower ends of the side plates.

In order to enable the negative pressure area to be close to the smoke source and improve the smoke suction effect, the bottom plate is provided with an air inlet.

In order to guide the oil smoke to be sucked, at least part of the bottom plate is inclined downwards gradually from front to back, and the air inlet is formed in the inclined part of the bottom plate.

The technical scheme adopted by the utility model for solving the second technical problem is as follows: the utility model provides an applied range hood as above box structure which characterized in that: the fan system is arranged in the box body structure, and the side plates are located on the left side and the right side of the bottom plate.

Compared with the prior art, the utility model has the advantages that: the side plates and the bottom plate are fixed from the inside, the number of the screws visible from the outside is small, the processing difficulty of the bottom plate and the side plates can be reduced, and the precision of the overall appearance of the whole machine is improved; the oil drops can be guided to flow downwards by forming the bevel edge on the inner side of the flanging; the height of hypotenuse is less than the bottom plate turn-ups, prevents to drip to contact with the bottom plate back, along the edge infiltration gap, avoids dripping the oil and leaks.

Drawings

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

FIG. 2 is a side view of the structure of a range hood according to an embodiment of the present invention;

fig. 3 is a sectional view (front-rear section) of the range hood according to the embodiment of the present invention;

FIG. 4 is an enlarged view of a portion I of FIG. 3;

fig. 5 is a sectional view (left-right direction section) of the extractor hood according to the embodiment of the present invention;

fig. 6 is an enlarged view of a portion ii of fig. 5.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like or similar reference numerals refer to the same or similar elements or elements having the same or similar functions.

In the description of the present invention, it is to be understood that the terms "central," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," "circumferential," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present invention and to simplify the description, but are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and that the directional terms are used for purposes of illustration and are not to be construed as limiting, for example, because the disclosed embodiments of the present invention may be oriented in different directions, "lower" is not necessarily limited to a direction opposite to or coincident with the direction of gravity. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Referring to fig. 1 to 6, a range hood includes a box structure 1 and a fan system 2 disposed in the box structure 1. Preferably, the fan system 2 employs a vertically arranged centrifugal fan.

The box structure 1 may be in the shape of a substantially hollow rectangular parallelepiped including a front panel 11 located on the front side, a bottom panel 12 located at the bottom, and side panels 13 located on the left and right sides, the bottom of the front panel 11 being connected to the front end of the bottom panel 12, the side panels 13 being respectively provided on the left and right sides of the front panel 11. The front panel 11, the bottom panel 12 and the side panels 13 may be an integral piece or separate panels connected to each other. An air inlet (not shown) is formed in the front panel 11, and a smoke baffle 3 capable of opening or closing the air inlet is arranged on the front side of the front panel 11.

The bottom plate 12 is inclined downward from front to rear, and may be continuously inclined at a rear side portion thereof, or may be a flat plate extending horizontally for facilitating arrangement of an oil cup (not shown). The bottom plate 12 is located at the front side of the oil cup, that is, the inclined part of the bottom plate 12 is provided with an air inlet 121, so that the range hood of the embodiment forms a double air inlet structure with forward air inlet and downward air inlet. A filter screen 122 is arranged at the air inlet 121. In this embodiment, in order to make the range hood better match the double-range kitchen range, the air inlets 121 are provided on the left and right sides of the bottom plate 12, and the middle of the bottom plate 12 is in a closed state, so that each air inlet 121 corresponds to one kitchen range, and the size of the air inlet 121 is enough to meet the air inlet requirement.

Because the area of the bottom plate 12 at the lower side of the box body structure 1 is large, and the distance from the forefront of the box body structure 1 to the wall is large, the oil smoke can collide the box body structure 1 with a large probability to escape to the two sides and the rear side of the range hood, and the oil smoke leakage is caused. The air inlet 121 is formed in the bottom plate 12, so that the problem can be effectively solved.

The shape of the lower end of the side plate 13 matches the bottom plate 12, so that the rear end of the inclined portion of the bottom plate 12 is the lowest point of the oil smoke (oil droplets) entering from the air inlet 121 sliding along the side plate 13. The lower end of each side plate 13 is bent towards the inside of the box structure 1 to form a first flange 131, the left end and the right end of the bottom plate 12 are bent upwards to form a bent part 123, and the upper end of the bent part 123 is bent towards the inside of the box structure 1 to form a second flange 124. The bending portion 123 may be substantially flush with the side plate 13 (i.e. vertically in the same plane), and an upper end of the bending portion 123 abuts against a lower end of the side plate 13. The bottom plate 12, the bent portion 123 and the second flange 124 may be integrally formed.

The lower surface of the first flange 131 is tightly attached to the upper surface of the second flange 124, and the first flange 131 and the second flange 124 are fixed by a fastener 3, such as a screw. One end of the first turned edge 131, which is far away from the side plate 13, is bent downwards to form a bevel edge 132, and the bevel edge 132 is formed by the end of the first turned edge 131 gradually inclining downwards in the direction far away from the side plate 13. The beveled edge 132 can function as a guide for oil. The distance between the lower end of the inclined edge 132 and the end of the second flange 124 is larger than the diameter of oil drops, and the lower end of the inclined edge 132 is lower than the second flange 124, so that oil drops are prevented from penetrating into the gap connecting the side plate 13 and the bottom plate 12 along the edge after contacting the bottom plate 13 (when flowing to the lowest point).

Claims (7)

1. The utility model provides a range hood's box structure, is including bottom plate (12) that are located the bottom and curb plate (13) that are located bottom plate (12) both sides, its characterized in that: the lower end of each side plate (13) is bent towards the interior of the box body structure to form a first flanging (131), two ends of the bottom plate (12) are respectively provided with a second flanging (124) tightly attached to the first flanging (131), and the first flanging (131) and the second flanging (124) are fixedly connected through a fastener (3).

2. The box structure of the range hood according to claim 1, characterized in that: one end of the first flanging (131) far away from the side plate (13) is provided with a bevel edge (132), and the bevel edge (132) is formed by inclining the end part of the first flanging (131) downwards gradually towards the direction far away from the side plate (13).

3. The box structure of the range hood according to claim 2, characterized in that: the lower end of the bevel edge (132) is lower than the second flange (124).

4. The box structure of the range hood according to any one of claims 1 to 3, wherein: the two ends of the bottom plate (12) are respectively bent upwards to form bent portions (123), the upper ends of the bent portions (123) are bent towards the interior of the box body structure to form second turned edges (124), and the upper ends of the bent portions (123) are tightly abutted to the lower ends of the side plates (13).

5. The box structure of the range hood according to any one of claims 1 to 3, wherein: an air inlet (121) is formed in the bottom plate (12).

6. The box structure of the range hood according to claim 5, characterized in that: the bottom plate (12) is at least partially inclined downwards from front to back, and the air inlet (121) is formed in the inclined part of the bottom plate (12).

7. A range hood applying the box structure as claimed in any one of claims 1 to 6, characterized in that: the air blower comprises a blower system (2) arranged in a box body structure, and side plates (13) are positioned on the left side and the right side of a bottom plate (12).

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