Smoke gathering structure and integrated cooker

Abstract

The utility model provides a smoke gathering structure and an integrated cooker, and relates to the technical field of kitchen appliances, the smoke gathering structure comprises an air inlet channel and a fan assembly, the fan assembly is arranged in the air inlet channel; from top to bottom, the air inlet channel comprises an inwards-contracted furling area and an inwards-contracted gathering area, the furling area and the gathering area are both used for guiding lampblack into the air inlet of the fan assembly, and the inwards-contracted degree of the gathering area is higher than that of the furling area. When air flow enters the gathering area, the air flow is slowly gathered to the center of the air inlet channel along the gathering slope and then enters the gathering area, the gathering area rapidly conveys the air flow on the two sides to the air inlet of the fan, the gathering area can slow down the downward diffusion speed of the air flow, and the air flow can be rapidly absorbed by the fan assembly. Therefore, fluid is in a laminar flow state when flowing through the inner shrinkage section, fluid stability is improved, air volume is increased, and noise is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to a smoke collection structure and an integrated stove. Background Art

[0002] The integrated stove includes a shell and a fan assembly. The fan assembly is arranged in the shell. The shell is provided with a smoke outlet. The fan assembly has an air inlet, which is connected to the smoke outlet.

[0003] When oil smoke flows from the smoke outlet to the air inlet, it will produce a lot of noise. Utility Model Content

[0004] The purpose of the utility model is to provide a smoke collecting structure and an integrated stove, so as to alleviate the technical problem of high internal noise in the existing smoke collecting structure.

[0005] In a first aspect, the utility model provides a smoke collecting structure comprising: an air inlet channel and a fan assembly, wherein the fan assembly is arranged in the air inlet channel;

[0006] From top to bottom, the air inlet channel includes an inward-retracted gathering area and an inward-retracted gathering area. Both the gathering area and the gathering area are used to guide the oil smoke into the air inlet of the fan assembly, and the degree of retraction of the gathering area is higher than that of the retraction area.

[0007] Furthermore, the air inlet channel includes a front side surface, a left side surface, a rear side surface and a right side surface connected in sequence along the circumferential direction; the air inlet faces the rear side surface;

[0008] From top to bottom, the left side includes the first and second sides connected in sequence, and correspondingly, the right side includes the fourth and fifth sides connected in sequence; in the left-right direction, a gathering area is formed between the first and fourth sides; and a gathering area is formed between the second and fifth sides;

[0009] From top to bottom, the distance between the first surface and the fourth surface, and the distance between the second surface and the fifth surface gradually decreases, and the angle between the first surface and the horizontal line is greater than the angle between the second surface and the horizontal plane.

[0010] Furthermore, the air inlet is located above the extension surface of the second surface and the extension surface of the fifth surface;

[0011] Alternatively, the lower edge of the air inlet is tangent to the extended surface of the second surface and the extended surface of the fifth surface respectively;

[0012] Alternatively, the lower edge of the air inlet is lower than the extension surface of the second surface and the extension surface of the fifth surface.

[0013] Furthermore, the angles α between the second surface and the fifth surface and the horizontal plane are both in the range of 5°≤α≤50°.

[0014] Furthermore, the length L of the second surface and the fifth surface in the left-right direction both ranges from 20 mm to 80 mm.

[0015] Furthermore, the left side includes a third side, the third side is connected to the bottom edge of the second side, and correspondingly, the right side includes a sixth side, the sixth side is connected to the bottom edge of the fifth side;

[0016] A gathering area is formed between the third surface and the sixth surface. In the left-right direction, the maximum length of the gathering area is less than or equal to the minimum length of the gathering area and is greater than the diameter of the air inlet.

[0017] Furthermore, from top to bottom, the distance between the third surface and the sixth surface gradually decreases.

[0018] Furthermore, from top to bottom, the value range of the angle β between the third surface and the sixth surface and the horizontal plane is 5°≤β≤35°.

[0019] Furthermore, from front to back, the front end of the second surface is higher than the rear end.

[0020] In a second aspect, the present invention provides an integrated stove comprising the above-mentioned smoke collecting structure.

[0021] The present invention has at least the following advantages or beneficial effects:

[0022] The smoke collecting structure provided by the utility model includes: an air inlet channel and a fan assembly, and the fan assembly is arranged in the air inlet channel; from top to bottom, the air inlet channel includes an inward-retracted gathering area and an inward-retracted gathering area, and both the inward-retracted gathering area and the gathering area are used to guide the oil smoke into the air inlet of the fan assembly, and the inward-retracting degree of the gathering area is higher than the inward-retracting degree of the inward-retracting area.

[0023] When the airflow enters the convergence area, it slowly converges to the center of the air inlet channel along the convergence slope, and then enters the convergence area. The convergence area quickly transports the airflow on both sides to the fan inlet, and the convergence area can slow down the downward diffusion speed of the airflow, which is beneficial for the fan component to quickly absorb this airflow, so that the fluid is in a laminar state when flowing through the contraction section, improving fluid stability, increasing air volume and reducing noise.

[0024] The integrated stove provided by the present invention includes the above-mentioned smoke-collecting structure. Since the integrated stove provided by the present invention adopts the above-mentioned smoke-collecting structure, the integrated stove provided by the present invention also has the advantages of the smoke-collecting structure. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] 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 any creative work.

[0026] Figure 1 A rear view of the smoke-collecting structure provided by an embodiment of the present utility model;

[0027] Figure 2 A diagram showing the airflow direction in the rearward direction of the smoke-collecting structure provided by an embodiment of the present invention;

[0028] Figure 3 A schematic diagram of the effect of the second surface of the smoke-collecting structure on the airflow provided by an embodiment of the present utility model;

[0029] Figure 4 This is a schematic diagram of another smoke collecting area in the smoke collecting structure provided in an embodiment of the present utility model.

[0030] Icon: 100-fan assembly;

[0031] 210 - front side; 220 - left side; 230 - back side; 240 - right side;

[0032] 610 - first side; 620 - second side; 630 - third side;

[0033] 710 - fourth page; 720 - fifth page; 730 - sixth page. DETAILED DESCRIPTION

[0034] To make the purpose, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings of the embodiments of the present invention. Obviously, the described embodiments are only some embodiments of the present invention, not all embodiments. Generally, the components of the embodiments of the present invention described and shown in the drawings herein can be arranged and designed in various different configurations.

[0035] Therefore, the following detailed description of the embodiments of the present invention provided in the accompanying drawings is not intended to limit the scope of the claimed invention, but rather merely represents selected embodiments of the present invention. All other embodiments derived by persons of ordinary skill in the art based on the embodiments of the present invention without creative effort are also within the scope of protection of the present invention.

[0036] It should be noted that similar reference numerals and letters denote similar items in the following drawings, and therefore, once an item is defined in one drawing, it does not need to be further defined or explained in subsequent drawings.

[0037] In the description of this utility model, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer" and the like, indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the accompanying drawings, or are the orientations or positional relationships in which the utility model product is typically placed when in use. These terms are intended solely to facilitate the description of this utility model and to simplify the description, and are not intended to indicate or imply that the device or component referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on this utility model. Furthermore, the terms "first," "second," and "third," etc., are used solely to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0038] Furthermore, terms such as "horizontal" and "vertical" do not necessarily mean that a component must be absolutely horizontal or overhanging, but rather that it can be slightly tilted. For example, "horizontal" simply means that its direction is more horizontal than "vertical," and does not mean that the structure must be completely horizontal, but rather that it can be slightly tilted.

[0039] It should also be noted that, in the description of this utility model, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they can refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections; direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in this utility model based on the specific circumstances.

[0040] like Figure 1 - Figure 4 As shown, the smoke collecting structure provided by the present invention can be arranged in a smoke collecting hood. The smoke collecting structure includes: an air inlet channel and a fan assembly 100, both of which are arranged inside the shell of the smoke collecting hood.

[0041] The fan assembly 100 is disposed in the air inlet channel for generating an air flow from the smoke inlet of the housing to the air inlet of the fan assembly 100 , and the smoke inlet of the housing is located above the air inlet.

[0042] From top to bottom, the air inlet channel includes a retracted gathering area and a retracted gathering area, wherein the side walls of the retracted structure formed by the retracted gathering area and the gathering area can both be the left and right walls of the air duct assembly. The degree of retraction of the gathering area is higher than that of the retracted gathering area, that is, at the location of the retracted gathering area, the degree of inclination of the left and right wall portions relative to the vertical direction is lower, while at the location of the gathering area, the degree of inclination of the left and right wall portions relative to the vertical direction is higher, thereby forming a stronger guiding effect in the gathering area. The air inlet of the fan assembly 100 can be located above the retracted extension range of the gathering area, or slightly below the retracted extension range, or tangent to the retracted extension range. In this embodiment, the retracted extension range refers to the dividing surface formed by the upper surface of the left and right wall portions that form the gathering area extending toward the middle.

[0043] When the airflow enters the convergence area, the airflow slowly converges to the center of the air inlet channel along the convergence slope, and then enters the convergence area. The convergence area quickly transports the airflow on both sides to the fan inlet, and the convergence area can slow down the downward diffusion speed of the airflow, which is beneficial for the fan assembly 100 to quickly absorb this airflow, so that the fluid is in a laminar state when flowing through the retracted section, thereby improving fluid stability, increasing air volume and reducing noise.

[0044] like Figure 1 and Figure 2 As shown, the air inlet channel includes a front side surface 210, a left side surface 220, a rear side surface 230 and a right side surface 240 connected in sequence along the circumferential direction; the air inlet faces the rear side surface 230; from top to bottom, the left side surface 220 includes a first side 610 and a second side 620 connected in sequence, and correspondingly, the right side surface 240 includes a fourth side 710 and a fifth side 720 connected in sequence; in the left-right direction, a gathering area is formed between the first side 610 and the fourth side 710; a gathering area is formed between the second side 620 and the fifth side 720; from top to bottom , the distance between the first surface 610 and the fourth surface 710, as well as the distance between the second surface 620 and the fifth surface 720 gradually decreases, and the angle between the first surface 610 and the horizontal line is greater than the angle between the second surface 620 and the horizontal plane; the air inlet can be located above the extended surface of the second surface 620 and the extended surface of the fifth surface 720, or tangent to the two, or the lower edge of the air inlet can be slightly lower than the two. In short, the smoke guided inward along the extended surface of the second surface 620 and the extended surface of the fifth surface 720 can directly flow into the air inlet.

[0045] In the convergence area, the first surface 610 and the fourth surface 710 on the left and right sides gradually converge from top to bottom. When the airflow enters the upper part of the air inlet channel, the airflow slowly converges to the center of the volute along the convergence slopes on the left and right sides.

[0046] like Figure 1 and Figure 2As shown, in the rapid converging area, compared with the first surface 610 and the fourth surface 710, the second surface 620 and the fifth surface 720 are more inclined. Taking the second surface 620 as an example, the second surface 620 is inclined at a certain angle α to the horizontal, and the second surface 620 points to the bottom of the circular air inlet to form a tangent, which can quickly transport the airflow on both sides to the fan inlet, and the airflow diffused to the bottom of the air inlet channel can also slow down the downward diffusion speed of the airflow through this area, which is conducive to the fan to quickly absorb this airflow, and combine the Reynolds number calculation formula Re=ρvL / μ to optimize the flow state of the fluid when flowing through the rapid converging area, where v, ρ, and μ are the flow velocity, density, and viscosity coefficient of the fluid, respectively, and L is the length of the rapid converging area (left and right direction). The calculated Reynolds number is controlled to be lower than the critical Reynolds number. In summary, the optimal length of the rapid converging area is 20mm≤L≤80mm, and the horizontal inclination angle is 5°≤α≤50°, so that the fluid is in a laminar state when flowing through the rapid converging area, thereby improving fluid stability, increasing air volume, and reducing noise.

[0047] The left side 220 includes a third side 630, which is connected to the bottom edge of the second side 620. Correspondingly, the right side 240 includes a sixth side 730, which is connected to the bottom edge of the fifth side 720. A gathering area is formed between the third side 630 and the sixth side 730. In the left and right directions, the maximum length of the gathering area is less than or equal to the minimum length of the gathering area, and is greater than the diameter of the air inlet.

[0048] like Figure 2 As shown, the third section is the convergence area. In this embodiment, the distance between the third surface 630 and the sixth surface 730 remains constant from top to bottom. The left-right length dimension is smaller than that of the convergence area, but larger than the fan inlet diameter. By compressing the cavity area below the volute, the turbulent area is reduced, reducing interference with the airflow, stabilizing the airflow rate, and reducing noise.

[0049] In another possible implementation, Figure 4 As shown, the distance between the third surface 630 and the sixth surface 730 gradually decreases from top to bottom. Taking the third surface 630 as an example, a single-sided inclination angle of 5°≤β≤35° further compresses the cavity area below the volute, reduces the turbulent area, increases the airflow turning radius between the left side 220 and the bottom, reduces air volume loss, and accelerates airflow absorption by the fan.

[0050] Further, such as Figure 3 As shown, from front to back, the front end of the second surface 620 is higher than the rear end, which makes it easier for the airflow passing through the second surface 620 and the fifth surface 720 to turn, thereby reducing air volume loss and making it easier for the airflow escaping to the front side from both sides of the channel to be sucked back by the fan.

[0051] The integrated stove provided by the present invention includes the above-mentioned smoke-collecting structure. Since the integrated stove provided by the present invention adopts the above-mentioned smoke-collecting structure, the integrated stove provided by the present invention also has the advantages of the smoke-collecting structure.

[0052] 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 deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A smoke-collecting structure, characterized in that: include: An air inlet channel and a fan assembly (100), wherein the fan assembly (100) is arranged in the air inlet channel; From top to bottom, the air inlet channel includes an inwardly contracted gathering area and an inwardly contracted gathering area, both of which are used to guide the oil smoke into the air inlet of the fan assembly (100), and the degree of contraction of the gathering area is higher than the degree of contraction of the contraction area.

2. The smoke-collecting structure according to claim 1, characterized in that: The air inlet channel comprises a front side surface (210), a left side surface (220), a rear side surface (230), and a right side surface (240) connected in sequence end to end along the circumferential direction; the air inlet faces the rear side surface (230); From top to bottom, the left side (220) includes a first side (610) and a second side (620) connected in sequence, and correspondingly, the right side (240) includes a fourth side (710) and a fifth side (720) connected in sequence; in the left-right direction, the gathering area is formed between the first side (610) and the fourth side (710); and the gathering area is formed between the second side (620) and the fifth side (720); From top to bottom, the distance between the first surface (610) and the fourth surface (710), and the distance between the second surface (620) and the fifth surface (720) gradually decrease, and the angle between the first surface (610) and the horizontal line is greater than the angle between the second surface (620) and the horizontal plane.

3. The smoke-collecting structure according to claim 2, characterized in that: The air inlet is located above the extension surface of the second surface (620) and the extension surface of the fifth surface (720); Alternatively, the lower edge of the air inlet is tangent to the extension surface of the second surface (620) and the extension surface of the fifth surface (720), respectively; Alternatively, the lower edge of the air inlet is lower than the extension surface of the second surface (620) and the extension surface of the fifth surface (720).

4. The smoke-collecting structure according to claim 2, characterized in that: The angles α between the second surface (620) and the fifth surface (720) and the horizontal plane are both in the range of 5°≤α≤50°.

5. The smoke-collecting structure according to claim 2, characterized in that: The length L of the second surface (620) and the fifth surface (720) in the left-right direction both ranges from 20 mm to 80 mm.

6. The smoke-collecting structure according to claim 2, characterized in that: The left side (220) includes a third side (630), and the third side (630) is connected to the bottom edge of the second side (620). Correspondingly, the right side (240) includes a sixth side (730), and the sixth side (730) is connected to the bottom edge of the fifth side (720); A gathering area is formed between the third surface (630) and the sixth surface (730). In the left-right direction, the maximum length of the gathering area is less than or equal to the minimum length of the gathering area and is greater than the diameter of the air inlet.

7. The smoke trapping structure according to claim 6, characterized in that: From top to bottom, the distance between the third surface (630) and the sixth surface (730) gradually decreases.

8. The smoke trapping structure according to claim 7, characterized in that: From top to bottom, the value range of the angle β between the third surface (630) and the sixth surface (730) and the horizontal plane is 5°≤β≤35°.

9. The smoke-collecting structure according to claim 2, characterized in that: From front to back, the front end of the second surface (620) is higher than the rear end.

10. An integrated stove, characterized in that: The invention comprises the smoke-collecting structure according to any one of claims 1 to 9.

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