Oil filter net and range hood

Abstract

The present invention provides an oil filter and a range hood, which relate to the technical field of kitchen appliances. The oil filter comprises: a bottom plate, the bottom plate comprising a front side and a back side, the bottom plate being provided with through holes penetrating the front side and the back side, the number of the through holes being multiple, the back side of the bottom plate being provided with a shielding structure corresponding to the through holes, the shielding structure being aligned with the through holes; the shielding structure comprising a shielding portion spaced apart from the bottom plate, the gap between the side of the shielding portion and the bottom plate forming an air inlet; the opposite ends of the shielding portion being connected to connecting portions, respectively, the connecting portions being used to connect the shielding portion and the bottom plate. The shielding portion can shield the through holes, thereby reducing the noise transmitted from the through holes, achieving a certain noise reduction effect; under the shielding of the shielding portion, the user cannot directly observe the internal structure of the range hood from the front side of the filter.

Description

Technical Field

[0001] The present invention relates to the technical field of kitchen appliances, and in particular to an oil filter and a range hood. Background Art

[0002] A filter is installed on the range hood, and the mesh of the filter of the range hood generally adopts through holes of various shapes, such as circle, diamond, etc.

[0003] Since these mesh holes are all through holes, the internal structure of the range hood can be directly seen when looking from the front, which seriously affects the appearance experience and reduces product quality; moreover, the noise generated by the operation of the fan inside the range hood will inevitably be transmitted to consumers through the open filter. Summary of the Invention

[0004] The object of the present invention is to provide an oil filter and a range hood to alleviate the technical problem in the prior art that a user can directly observe the internal structure of the range hood through the through holes on the filter and that the through holes on the filter transmit noise.

[0005] In a first aspect, an embodiment of the present invention provides an oil filter, comprising: a bottom plate, the bottom plate comprising a front surface and a back surface, the bottom plate being provided with a plurality of through holes extending through the front surface and the back surface, and the back surface of the bottom plate being provided with a shielding structure corresponding one-to-one to each of the through holes;

[0006] The shielding structure includes a shielding portion spaced apart from the base plate, at least a portion of the projection of the shielding portion on the base plate falls within the through hole, and the gap between the side of the shielding portion and the base plate forms an air inlet; the opposite ends of the shielding portion are respectively connected to connecting portions, and the connecting portions are used to connect the shielding portion and the base plate.

[0007] Furthermore, there are at least two shielding structures, and the air inlet formed by one shielding structure has a different orientation from the air inlet formed by the other shielding structure.

[0008] Furthermore, the air inlets formed by the multiple shielding structures arranged along the first direction have the same orientation, and the air inlets formed by the multiple shielding structures arranged along the second direction have different orientations;

[0009] And / or, the oil filter net has multiple rows of shielding structures arranged at intervals along the third direction, and multiple shielding structures in each row are arranged along the first direction; and the air inlets formed by the multiple shielding structures in the same row have the same orientation, and the air inlets formed by the shielding structures in two adjacent rows in the third direction have different orientations.

[0010] Furthermore, there are at least two adjacent shielding structures, one of which is a first shielding structure and the other is a second shielding structure;

[0011] The first shielding structure and the bottom plate respectively form a first air inlet and a second air inlet, and the first air inlet and the second air inlet are respectively located on opposite sides of the first shielding structure; the second shielding structure includes a first connecting portion close to the first air inlet and a second connecting portion away from the first air inlet;

[0012] The first air inlet formed by the first shielding structure faces the first connecting portion of the second shielding structure.

[0013] Furthermore, a distance between the first air inlet formed by the first shielding structure and the first connecting portion of the second shielding structure is greater than a depth of the first air inlet.

[0014] Furthermore, along the forward and reverse directions, the distance between the shielding portion of the first shielding structure and the bottom plate is greater than the distance between the shielding portion of the second shielding structure and the bottom plate.

[0015] Furthermore, along the direction from the second shielding structure to the first shielding structure, the distance between the shielding portion of the second shielding structure and the bottom plate gradually decreases;

[0016] And / or, the distance between the shielding portion and the bottom plate gradually increases from one side to the other side of the shielding structure.

[0017] Furthermore, along the forward and reverse directions, the distance between the two connecting parts on the same shielding structure gradually decreases;

[0018] And / or, the connecting portion has a curved structure.

[0019] Furthermore, the oil filter includes a lower edge, and the air inlet formed by the shielding structure and the bottom plate is arranged at an angle to the lower edge.

[0020] In a second aspect, an embodiment of the present invention provides a range hood comprising the above-mentioned oil filter.

[0021] The oil filter provided by the embodiment of the present invention includes: a bottom plate, the bottom plate includes a front side and a back side, the bottom plate is provided with a through hole running through the front side and the back side, the number of the through holes is multiple, and the back side of the bottom plate is provided with a shielding structure corresponding to the through holes one by one; the shielding structure includes a shielding portion spaced apart from the bottom plate, at least a part of the projection of the shielding portion on the bottom plate falls within the through hole, and the gap between the side of the shielding portion and the bottom plate forms an air inlet; the opposite ends of the shielding portion are respectively connected with connecting portions, and the connecting portions are used to connect the shielding portion and the bottom plate. The shielding part is located behind the through hole, and both ends of the shielding part are respectively connected to the bottom plate, and the connection stability is high; the gap between the two side edges of the shielding part and the bottom plate forms an air inlet, and the oil smoke collides with the shielding part after passing through the through hole, and the smoke turns and flows out from the air inlet. On the one hand, the shielding part can block the through hole, thereby reducing the noise transmitted from the through hole, and has a certain noise reduction effect; on the other hand, under the shielding of the shielding part, the user cannot directly observe the internal structure of the range hood from the front of the filter; on the other hand, after the oil smoke collides with the shielding part, the collision will cool the oil smoke and absorb some oil, thereby improving the oil purification rate of the range hood.

[0022] The range hood provided by the embodiment of the present invention includes the above-mentioned oil filter. Since the range hood provided by the embodiment of the present invention uses the above-mentioned oil filter, the range hood provided by the embodiment of the present invention also has the advantages of the oil filter. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for use in the specific embodiments or the description of the prior art. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0024] Figure 1 A schematic diagram of the front side of the oil filter provided by an embodiment of the present invention;

[0025] Figure 2 A schematic diagram of the reverse side of an oil filter provided by an embodiment of the present invention;

[0026] Figure 3 for Figure 2 A partial enlarged view of position A in the middle;

[0027] Figure 4 A schematic diagram of the air inlet of the oil filter provided in an embodiment of the present invention;

[0028] Figure 5 A schematic diagram of another shielding structure of an oil filter provided in an embodiment of the present invention;

[0029] Figure 6 A schematic diagram of the front side of another oil filter provided by an embodiment of the present invention;

[0030] Figure 7 A schematic diagram of a range hood provided in an embodiment of the present invention.

[0031] Icon: 100-bottom plate; 200-through hole; 300-shielding structure; 310-shielding portion; 320-connecting portion; 330-air inlet; 410-first shielding structure; 411-first air inlet; 420-second shielding structure; 421-first connecting portion; 500-smoke hood. DETAILED DESCRIPTION

[0032] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0033] like Figure 1-Figure 7 As shown, the oil filter provided by the embodiment of the present invention can be installed on the smoke collecting hood 500, and the shape of the oil filter can be rectangular.

[0034] like Figure 3 As shown, the oil filter includes a base plate 100, and the base plate 100 includes a front side and a back side. When in use, the front side faces the user, and the back side faces the inside of the smoke hood 500. The base plate 100 is provided with a through hole 200 that runs through the front and back sides, and the oil smoke passes through the base plate 100 from the through hole 200. There are multiple through holes 200, and the back side of the base plate 100 is provided with a shielding structure 300 that corresponds to the through holes 200 one by one. At least a part of the projection of the shielding portion on the base plate falls within the through hole, and the shielding portion plays the role of shielding the through hole. The shielding structure 300 includes a shielding portion 310 that is spaced apart from the base plate 100. The shielding portion 310 is located directly behind the through hole 200 and plays a role in blocking the oil smoke. The gap between the side of the shielding portion 310 and the base plate 100 forms an air inlet 330. Two opposite ends of the shielding portion 310 are respectively connected with connecting portions 320 , and the connecting portions 320 are used to connect the shielding portion 310 and the bottom plate 100 .

[0035] The specific principle is as follows: the shielding part 310 is located behind the through hole 200, and the two ends of the shielding part 310 are respectively connected to the bottom plate 100. The shielding part 310 is not easy to shake, the connection stability is high, and it is not easy to generate noise; the gap between the two side edges of the shielding part 310 and the bottom plate 100 forms an air inlet 330, and the oil smoke collides with the shielding part 310 after passing through the through hole 200, and the smoke turns and flows out from the air inlet 330 on both sides. On the one hand, the shielding part 310 can block the through hole 200, thereby reducing the noise transmitted from the through hole 200, which has a certain noise reduction effect; on the other hand, under the obstruction of the shielding part 310, the user cannot directly observe the internal structure of the range hood from the front of the filter; on the other hand, after the oil smoke collides with the shielding part 310, the collision will cool the oil smoke and absorb some grease, thereby improving the grease purification rate of the range hood.

[0036] The base plate 100 includes multiple through-holes 200 and multiple shielding structures 300, and the through-holes 200 can be evenly distributed in horizontal rows. In this embodiment, there are at least two shielding structures 300, and the air inlet 330 formed by one shielding structure 300 is oriented differently from the air inlet 330 formed by the other shielding structure 300. The different orientations of the two air inlets 330 result in different propagation directions for the exhaust fumes, effectively preventing collisions between the gases in the air inlets 330 and ensuring smoother air flow.

[0037] The air inlets 330 formed by the multiple shielding structures 300 arranged along the first direction have the same orientation, and the air inlets 330 formed by the multiple shielding structures 300 arranged along the second direction have different orientations.

[0038] In one implementation of this embodiment, Figure 1 As shown, the oil filter can be rectangular, with the lower edge being the long side, and the first direction can be parallel to the lower edge. In addition, in order to allow the oil stains on the shielding structure 300 to flow smoothly from top to bottom and enter the interior of the range hood, the air inlet 330 can be set at an angle to the lower edge, and the angle can be 45°-60°. The second direction can be parallel to the direction of the air inlet 330. The directions of the air inlets 330 formed by the multiple shielding structures 300 arranged along the first direction can all be at an angle of 45°-60° to the lower edge, without blocking each other. At the same time, the air inlets 330 formed by the multiple shielding structures 300 arranged in the second direction are staggered, and the airflows do not interfere with each other.

[0039] The oil filter net has multiple rows of shielding structures 300 arranged at intervals along the third direction, and multiple shielding structures 300 in each row of shielding structures 300 are arranged along the first direction; and the air inlets 330 formed by multiple shielding structures 300 in the same row have the same orientation, and the air inlets 330 formed by the shielding structures 300 in two adjacent rows in the third direction have different orientations.

[0040] In another embodiment of this embodiment, if Figure 6 As shown, in this embodiment, the first direction can be other directions set at an angle to the lower edge, and the third direction can be perpendicular to the first direction. The air inlets 330 formed by multiple shielding structures 300 in the same row have the same orientation, which can form a centralized air outlet structure in the first direction, which is conducive to the discharge of smoke. In addition, the air inlets 330 formed by the shielding structures 300 in two adjacent rows in the third direction have different orientations, which avoids mutual interference between the air inlets 330 formed by the shielding structures 300 in the two adjacent rows. In the two adjacent rows, among the corresponding two shielding structures 300, the air inlets 330 of the shielding structures 300 in one row are oriented toward the connecting portion of the shielding structures 300 in the other row. The connecting portion can play a guiding role, allowing the smoke to flow into the interior of the smoke hood.

[0041] Specifically, there are at least two adjacent shielding structures 300, one of which is designated as a first shielding structure 410 and the other as a second shielding structure 420. The first shielding structure 410 and the base plate 100 respectively form a first air inlet 411 and a second air inlet, and the first air inlet 411 and the second air inlet are located on opposite sides of the first shielding structure 410. The second shielding structure 420 includes a first connecting portion 421 proximal to the first air inlet 411 and a second connecting portion distal to the first air inlet 411. The first air inlet 411 formed by the first shielding structure 410 faces the first connecting portion 421 of the second shielding structure 420. The air inlet 330 formed by the first shielding structure 410 and the air inlet 330 formed by the second shielding structure 420 form a 90-degree angle. The first shielding structure 410 and the second shielding structure 420 can be arranged sequentially in the second direction, and multiple shielding structures 300 can be neatly arranged on the back of the base plate 100.

[0042] The distance between the first air inlet 411 formed by the first shielding structure 410 and the first connecting portion 421 of the second shielding structure 420 is greater than the depth of the first air inlet 411 .

[0043] like Figure 4 As shown, after the smoke flows out of the through hole 200, it collides with the shielding part 310, then turns 90 degrees and flows out from the first air inlet 411, then flows between the first air inlet 411 and the first connecting part 421, and finally flows out to the inside from the opening between the first air inlet 411 and the first connecting part 421. The distance value between the first air inlet 411 and the first connecting part 421 of the second shielding structure 420 is greater than the depth value of the first air inlet 411, thereby avoiding the formation of an air intake bottleneck between the first air inlet 411 and the first connecting part 421 of the second shielding structure 420, thereby effectively improving the smoking effect.

[0044] Along the forward and reverse directions, the distance between the shielding portion 310 of the first shielding structure 410 and the bottom plate 100 is greater than the distance between the shielding portion 310 of the second shielding structure 420 and the bottom plate 100 .

[0045] The blocking effect of the second shielding structure 420 on the first air inlet 411 formed by the first shielding structure 410 is reduced, the gas flow resistance is reduced, and the smoke from the first air inlet 411 can flow out more smoothly.

[0046] Along the direction from the second shielding structure 420 to the first shielding structure 410 , the distance between the shielding portion 310 of the second shielding structure 420 and the bottom plate 100 gradually decreases.

[0047] like Figure 5 As shown, the shielding portion 310 of the second shielding structure 420 is an inclined plane or curved surface, which can play a role in guiding air flow. The height of the first connecting portion 421 can be lower than the upper edge of the first air inlet 411, which can reduce the blocking effect of the first connecting portion 421 on the air flow flowing out of the first air inlet 411.

[0048] It should be noted that the first shielding structure 410 and the second shielding structure 420 may differ only in the orientation of the air inlet 330, and their structures may be identical. In other words, the first shielding structure 410 in one staggered arrangement of the first and second shielding structures 410, 420 may serve as the second shielding structure 420 in another staggered arrangement of the first and second shielding structures 410, 420.

[0049] The distance between the shielding portion 310 and the bottom plate 100 gradually increases from one side to the other side of the shielding structure 300. The shielding structure 300 is tilted, and one air inlet 330 formed by the shielding structure 300 is larger than the other air inlet 330, thereby increasing the flow rate of smoke.

[0050] Along the forward and reverse directions, the distance between the two connecting portions 320 on the same shielding structure 300 gradually decreases.

[0051] The connecting portion 320 can be opposite to the air inlet 330 of another shielding structure 300. The smoke flowing out of the air inlet 330 can enter the fan assembly on the rear side of the oil filter under the guidance of the inclined connecting portion 320. The inclined connecting portion 320 reduces the gas flow resistance.

[0052] The connecting portion 320 may be a curved structure, that is, both the inner surface and the outer surface of the connecting portion 320 may be curved surfaces, which may play a role in guiding flow and reducing gas flow resistance.

[0053] like Figure 7As shown, the range hood provided by the embodiment of the present invention includes the above-mentioned oil filter. Since the range hood provided by the embodiment of the present invention uses the above-mentioned oil filter, the range hood provided by the embodiment of the present invention also has the advantages of the oil filter.

[0054] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. An oil filter, characterized in that: include: A bottom plate (100), the bottom plate (100) comprising a front side and a back side, the bottom plate (100) being provided with through holes (200) penetrating the front side and the back side, the number of the through holes (200) being multiple, and the back side of the bottom plate (100) being provided with shielding structures (300) corresponding one-to-one to the through holes (200); The shielding structure (300) comprises a shielding portion (310) spaced apart from the bottom plate (100); at least a portion of a projection of the shielding portion (310) on the bottom plate (100) falls within the through hole (200); a gap between a side edge of the shielding portion (310) and the bottom plate (100) forms an air inlet (330); opposite ends of the shielding portion (310) are respectively connected to connecting portions (320), the connecting portions (320) being used to connect the shielding portion (310) and the bottom plate (100); There are at least two adjacent shielding structures (300), one of which is a first shielding structure (410) and the other is a second shielding structure (420); The first shielding structure (410) and the bottom plate (100) respectively form a first air inlet (411) and a second air inlet, and the first air inlet (411) and the second air inlet are respectively located on opposite sides of the first shielding structure (410); the second shielding structure (420) includes a first connecting portion (421) close to the first air inlet (411), and a second connecting portion away from the first air inlet (411); The first air inlet (411) formed by the first shielding structure (410) faces the first connecting portion (421) of the second shielding structure (420); The distance between the first air inlet (411) formed by the first shielding structure (410) and the first connecting portion (421) of the second shielding structure (420) is greater than the depth of the first air inlet (411).

2. The oil filter according to claim 1, characterized in that: There are at least two shielding structures (300), and the air inlet (330) formed by one shielding structure (300) has a different orientation from the air inlet (330) formed by the other shielding structure (300).

3. The oil filter according to claim 2, characterized in that: The air inlets (330) formed by the plurality of shielding structures (300) arranged along the first direction have the same orientation, and the air inlets (330) formed by the plurality of shielding structures (300) arranged along the second direction have different orientations; And / or, the oil filter net has multiple rows of shielding structures (300) arranged at intervals along a third direction, and multiple shielding structures (300) in each row of shielding structures (300) are arranged along a first direction; and the air inlets (330) formed by the multiple shielding structures (300) in the same row have the same orientation, while the air inlets (330) formed by the shielding structures (300) in two adjacent rows in the third direction have different orientations.

4. The oil filter according to claim 1, characterized in that: Along the forward and reverse directions, the distance between the shielding portion (310) of the first shielding structure (410) and the bottom plate (100) is greater than the distance between the shielding portion (310) of the second shielding structure (420) and the bottom plate (100).

5. The oil filter according to claim 1, characterized in that: Along the direction from the second shielding structure (420) to the first shielding structure (410), the distance between the shielding portion (310) of the second shielding structure (420) and the bottom plate (100) gradually decreases; And / or, along the direction from one side to the other side of the shielding structure (300), the distance between the shielding portion (310) and the bottom plate (100) gradually increases.

6. The oil filter according to any one of claims 1 to 5, characterized in that: Along the forward and reverse directions, the distance between the two connecting portions (320) on the same shielding structure (300) gradually decreases; And / or, the connecting portion (320) has a curved structure.

7. The oil filter according to any one of claims 1 to 5, characterized in that: The oil filter comprises a lower edge, and the air inlet (330) formed by the shielding structure (300) and the bottom plate (100) is arranged at an angle to the lower edge.

8. A range hood, characterized in that: The oil filter comprises the oil filter according to any one of claims 1 to 7.

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