Smoke collecting device and range hood

Abstract

This utility model provides a smoke collection device and a range hood, relating to the technical field of kitchen appliances. The smoke collection device includes: a cover, a smoke guide plate, and an oil collection box; the oil collection box is connected to the cover; the smoke guide plate is connected to the cover and located below the smoke inlet of the cover, and the downward projection of the smoke inlet is located inside the smoke guide plate; from front to back, the smoke guide plate is inclined downward, and the rear edge of the smoke guide plate extends backward to the top of the oil collection box, so that the downward projection of the rear edge of the smoke guide plate is located inside the oil collection box.

Description

Technical Field

[0001] This utility model relates to the field of kitchen appliance technology, and in particular to a smoke collection device and a range hood. Background Technology

[0002] With the widespread use of modern kitchen appliances and people's increasing demands for a better cooking environment, range hoods have become an indispensable piece of equipment in family kitchens. The main function of a range hood is to effectively collect and exhaust the fumes generated during cooking through the combined action of its casing and fume deflector, thereby maintaining clean air in the kitchen. Among these components, the fume deflector, as one of the key parts of the range hood, directly affects its extraction efficiency and user experience.

[0003] In existing technology, range hoods typically employ a combined structure of a casing and an oil fume deflector. The deflector, located below the casing, collects grease dripping from it. When grease accumulates to a certain level, the user needs to manually disassemble the deflector for cleaning. While this design effectively collects grease, the frequent disassembly and cleaning of the deflector not only increases the user's workload but may also affect the installation stability and lifespan of the deflector. Utility Model Content

[0004] The purpose of this invention is to provide a smoke collection device and a range hood to alleviate the technical problem of frequent cleaning of the smoke guide plate of existing range hoods.

[0005] In a first aspect, the present invention provides a smoke collection device, comprising: a cover, an oil fume guide plate, and an oil collection box;

[0006] The oil receiving box is connected to the cover;

[0007] The fume guide plate is connected to the cover and is located below the smoke inlet of the cover, and the downward projection of the smoke inlet is located inside the fume guide plate; from front to back, the fume guide plate is inclined downward, and the rear edge of the fume guide plate extends backward to the top of the oil receiving box, so that the downward projection of the rear edge of the fume guide plate is located inside the oil receiving box.

[0008] Furthermore, the rear edge of the fume guide plate is provided with a downwardly recessed platform.

[0009] Furthermore, the fume guide plate includes a flat plate, and the downward projection of the fume inlet is located on the inner side of the flat plate; the left and right edges of the flat plate are respectively provided with upwardly curved edges.

[0010] Furthermore, the side of the oil receiving box facing the fume guide plate has a clearance opening; the rear edge of the fume guide plate extends rearward into the clearance opening.

[0011] Furthermore, the left, right, and front edges of the fume guide plate are all provided with upward-folding folded edges.

[0012] Furthermore, the outer edge of the folded edge is provided with a flap that is flipped inward by 180°.

[0013] Furthermore, the angle α of the fume guide plate relative to the horizontal plane ranges from 3.5° to 4.5°.

[0014] Furthermore, the length of the smoke inlet is F in the left-right direction and G in the front-back direction;

[0015] The length of the fume guide plate is H in the left-right direction, and the length of the smoke inlet is I in the front-back direction; the distances of the leading edge and the trailing edge of the fume guide plate from the plane where the smoke inlet is located are X and Y, respectively.

[0016] 70<(HF) / 2<90, 30<(I·sinα-G) / 2<40, 35<X<40, 50<Y<60.

[0017] Furthermore, the cover is provided with a left hanging ring, a right hanging ring, a left locking hole, and a right locking hole;

[0018] The fume guide plate is equipped with a left hook, a right hook, a left insert, and a right insert.

[0019] The left hook and the right hook are respectively hooked and connected to the left hanging ring and the right hanging ring;

[0020] The left and right plugs are respectively engaged with the left and right card slots.

[0021] Secondly, the present invention provides a range hood that includes the aforementioned smoke collection device.

[0022] This utility model has at least the following advantages or beneficial effects:

[0023] The smoke collection device provided by this utility model includes: a cover, an oil fume guide plate, and an oil collection box; the oil collection box is connected to the cover; the oil fume guide plate is connected to the cover and is located below the smoke inlet of the cover, and the downward projection of the smoke inlet is located inside the oil fume guide plate; from front to back, the oil fume guide plate is inclined downward, and the rear edge of the oil fume guide plate extends backward to the top of the oil collection box, so that the downward projection of the rear edge of the oil fume guide plate is located inside the oil collection box.

[0024] The downward projection of the smoke inlet is located inside the fume guide plate, ensuring that all oil dripping from the smoke inlet is completely collected by the guide plate. The rear edge of the fume guide plate extends backward to the top of the oil collection box, so that the downward projection of the rear edge of the guide plate is located inside the oil collection box. The oil collected inside the guide plate will flow backward and enter the oil collection box, requiring only centralized cleaning of the oil collection box, eliminating the need for frequent disassembly and cleaning of the fume guide plate.

[0025] The range hood provided by this utility model includes the aforementioned smoke collection device. Because the range hood provided by this utility model incorporates the aforementioned smoke collection device, it also possesses the advantages of a smoke collection device. Attached Figure Description

[0026] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0027] Figure 1 A schematic diagram of the smoke collection device provided in an embodiment of this utility model;

[0028] Figure 2 A cross-sectional view of the smoke collection device provided in an embodiment of this utility model;

[0029] Figure 3 A schematic diagram of the fume guide plate of the fume collection device provided in the embodiment of this utility model (left hook, right hook, left insert and right insert are not shown).

[0030] Figure 4 for Figure 3 A magnified view of a portion of position A in the middle;

[0031] Figure 5 A schematic diagram of the fume guide plate of the fume collection device provided in the embodiment of this utility model;

[0032] Figure 6 A schematic diagram of the interior of the smoke collection device housing provided in an embodiment of this utility model;

[0033] Figure 7 A schematic diagram illustrating the installation process of the fume guide plate of the fume collection device provided in this embodiment of the utility model;

[0034] Figure 8 A schematic diagram of the oil receiving box of the smoke collection device provided in an embodiment of this utility model;

[0035] Figure 9 This is a bottom view of the smoke collection device provided in an embodiment of the present utility model.

[0036] Icons: 100 - Fume deflector; 101 - Curved edge; 102 - Folded edge; 103 - Flared edge; 104 - Recessed platform;

[0037] 200 - Left hook body; 300 - Right hook body; 440 - Left hanging ring; 450 - Right hanging ring; 500 - Left insert; 600 - Right insert; 710 - Left ball bearing seat; 720 - Right ball bearing seat; 800 - Cover; 801 - Smoke inlet; 900 - Oil collection box; 901 - Clearance opening. Detailed Implementation

[0038] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of the embodiments of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, and not all embodiments. The components of the embodiments of this utility model described and shown in the accompanying drawings can generally be arranged and designed in various different configurations.

[0039] like Figure 1 , Figure 2 and Figure 8 As shown, the smoke collection device provided by this utility model includes: a cover 800, an oil fume guide plate 100, and an oil collection box 900; the oil collection box 900 is connected to the cover 800, and the side of the oil collection box 900 facing the oil fume guide plate 100 has a clearance opening 901; the oil fume guide plate 100 is connected to the cover 800 and is located below the smoke inlet 801 of the cover 800; from front to back, the oil fume guide plate 100 is inclined downward, and the rear edge of the oil fume guide plate 100 extends backward into the clearance opening 901, so that the downward projection of the rear edge of the oil fume guide plate 100 is located inside the oil collection box 900.

[0040] The rear edge of the fume guide plate 100 extends rearward into the clearance opening 901, so that the downward projection of the rear edge of the fume guide plate 100 is located inside the oil collection box 900. The oil stains gathered inside the fume guide plate 100 will flow rearward and enter the oil collection box 900. Only the oil collection box 900 needs to be cleaned in a concentrated manner, without the need for frequent disassembly and cleaning of the fume guide plate 100.

[0041] Of course, in other feasible solutions, the clearance opening 901 can be omitted, and the rear edge of the fume guide plate 100 can be located directly above the oil collection box 900. However, the clearance opening 901 serves a clearance function and facilitates the disassembly of the fume guide plate 100.

[0042] like Figure 3 and Figure 4 As shown, the center of the fume guide plate 100 is a flat plate, and the downward projection of the smoke inlet 801 is located on the inner side of the flat plate. The left and right edges of the flat plate are respectively provided with upwardly curved edges 101. The angle at which the curved edges 101 curve upward relative to the flat plate ranges from 10° to 20°, for example, 15°. The curved edges 101 can serve as a guide, directing the fumes below to adhere to the surface of the curved edges 101 and then flow into the smoke inlet 801 above the fume guide plate 100.

[0043] The fume guide plate 100 is provided with upward folded edges 102 on the left, right and front edges. The folded edges 102 form an obstruction, which can completely collect the oil stains dripping from the range hood inside the fume guide plate 100 and then discharge them to the rear.

[0044] The outer edge of the folded edge 102 is provided with a flap 103 that flips inward 180° to prevent the edge from scratching the user.

[0045] Furthermore, the angle α of the fume guide plate 100 relative to the horizontal plane ranges from 3.5° to 4.5°.

[0046] To improve the flow guiding efficiency, the rear side of the fume guide plate 100 does not have a folded edge 102, but has a vertically downward recessed platform 104. The oil flowing backward from the flat plate enters the recessed platform 104 through the lower stepped surface, and then quickly flows into the oil receiving box 900, which can further enhance the oil guiding effect.

[0047] like Figure 9As shown, the housing 800 is provided with a smoke inlet 801, which is horizontally positioned. The length of the smoke inlet 801 in the left-right direction is F, and the length in the front-back direction is G. The length of the fume guide plate 100 in the left-right direction is H, and the length of the smoke inlet 801 in the front-back direction is I. The pitch angle between the fume guide plate 100 and the plane containing the smoke inlet 801 in the front-back direction is α. Therefore, the width of the fume guide plate 100 projected onto the horizontal plane is I•sinα. After the fume guide plate 100 is installed, the distances from the leading edge and trailing edge of the fume guide plate 100 to the plane containing the smoke inlet 801 are X and Y, respectively. The effective air intake area of ​​the smoke collection chamber surrounding the fume guide plate 100 is the sum of the vertically projected air intake areas of the left, right, and front sides. The effective air intake area at the front of the smoke collection chamber is S1 = (H+F)•X•1 / 2; the effective air intake areas on the left and right sides of the smoke collection chamber are S2 = (GX+Y•I•cosα)•1 / 2; the total effective air intake area is S3 = S1 + 2•S2 = [1 / 2•(H+F)+G)]X+Y•I•cosα. The air intake area at the 800mm surface of the casing is S4 = GF. In this embodiment, S3 / S4 is named K: the air intake area coefficient of the negative pressure expansion smoke machine. Simulation and actual test results show that when 0.35 < K < 0.45, the negative pressure and wind speed at each air intake reach the optimal matching value, and the smoke machine achieves the best smoke extraction effect. Considering the appearance of the range hood and meeting the basic requirements of the oil circuit (the projected area of ​​the oil fume guide plate is greater than the area of ​​the air inlet, α=3.5°-4.5°), in this embodiment (G=275, F=400), the range hood achieves its optimal smoke extraction effect when 70<(HF) / 2<90, 30<I•cosα-G<40, 35<X<40, 50<Y<60).

[0048] like Figures 5-7 As shown, the cover 800 is provided with a left hanging ring 440, a right hanging ring 450, a left locking hole, and a right locking hole; the fume guide plate 100 is provided with a left hook 200, a right hook 300, a left insert 500, and a right insert 600; the left hook 200 and the right hook 300 are hooked and connected to the left hanging ring 440 and the right hanging ring 450 respectively; the left insert 500 and the right insert 600 are engaged with the left locking hole and the right locking hole respectively.

[0049] The smoke collection device includes a left ball bearing seat 710 and a right ball bearing seat 720 mounted on the housing 800. The left ball bearing seat 710 and the right ball bearing seat 720 form a left locking hole and a right locking hole, respectively. The left insert 500 includes a left ball bearing; the right insert 600 includes a right ball bearing. The left and right ball bearings are symmetrically arranged. The left hanging ring 440 and the right hanging ring 450 have the same structure, forming a U-shaped cylinder.

[0050] During installation, first align the slots of the left hook 200 and the right hook 300 with the left hanging ring 440 and the right hanging ring 450 simultaneously. The fume guide plate 100 moves inward along the arc of the slot. Then rotate the fume guide plate 100 upward, and the left and right actuating ball shafts are engaged in the left actuating ball shaft seat 710 and the right actuating ball shaft seat 720, respectively. The installation of the fume guide plate 100 is now complete.

[0051] The range hood provided by this utility model includes the aforementioned smoke collection device. Because the range hood provided by this utility model incorporates the aforementioned smoke collection device, it also possesses the advantages of a smoke collection device.

[0052] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and are not intended to limit it. Although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A fume extraction device, characterized in that, include: Cover (800), fume baffle (100) and oil collection box (900); The oil receiving box (900) is connected to the cover (800); The fume guide plate (100) is connected to the cover (800) and is located below the smoke inlet (801) of the cover (800), and the downward projection of the smoke inlet (801) is located inside the fume guide plate (100); from front to back, the fume guide plate (100) is inclined downward, and the rear edge of the fume guide plate (100) extends backward to the top of the oil receiving box (900), so that the downward projection of the rear edge of the fume guide plate (100) is located inside the oil receiving box (900).

2. The smoke device of claim 1, wherein, The rear edge of the fume guide plate (100) is provided with a downwardly recessed platform (104).

3. The air management device of claim 1, wherein, The fume guide plate (100) includes a flat plate, and the downward projection of the fume inlet (801) is located on the inner side of the flat plate; The left and right edges of the flat plate are respectively provided with upward-curved edges (101).

4. The smoke device of claim 1, wherein, The oil collection box (900) has a clearance opening (901) on the side facing the fume guide plate (100); the rear edge of the fume guide plate extends rearward into the clearance opening.

5. The air management device of claim 1, wherein, The fume guide plate (100) is provided with upward folded edges (102) on the left, right and front edges.

6. The air management device of claim 5, wherein, The outer edge of the folded edge (102) is provided with a flap edge (103) that is flipped inward by 180°.

7. The air management device of claim 1, wherein, The angle α of the fume guide plate (100) relative to the horizontal plane is in the range of 3.5°-4.5°.

8. The air management device of claim 7, wherein, The length of the smoke inlet (801) is F in the left-right direction and G in the front-back direction; In the left-right direction, the length of the fume guide plate (100) is H, and in the front-back direction, the length of the smoke inlet (801) is I; the front edge and rear edge of the fume guide plate (100) are respectively X and Y distances from the plane where the smoke inlet (801) is located; 70<(HF) / 2<90, 30<(I·sinα-G) / 2<40, 35<X<40, 50<Y<60.

9. The smoke device of claim 1, wherein, The cover (800) is provided with a left hanging ring (440), a right hanging ring (450), a left locking hole and a right locking hole; The fume guide plate (100) is provided with a left hook (200), a right hook (300), a left insert (500) and a right insert (600). The left hook (200) and the right hook (300) are respectively hooked and connected to the left hanging ring (440) and the right hanging ring (450); The left plug-in (500) and the right plug-in (600) are respectively engaged with the left card slot and the right card slot.

10. A range hood characterized by Includes the smoke collection device according to any one of claims 1-9.

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