Range hood and range hood and stove all-in-one machine with inlet air rectification function

Abstract

The utility model discloses a range hood with an air inlet rectification function and a range hood and stove all-in-one machine, and belongs to the technical field of kitchen appliances. The range hood with the inlet air rectification function comprises an exhaust fume collecting hood and a rectification structure, the rectification structure comprises an arc-shaped piece and a rectification piece, the arc-shaped piece is suspended in an air guide channel and faces an air inlet, and at least part of the arc-shaped piece is higher than the lower edge of the air inlet; the multiple rectifying parts are arranged on the arc-shaped part at intervals in the extending direction of the arc-shaped part, the interval between every two adjacent rectifying parts forms a rectifying channel which tends to extend downwards, airflow at the air inlet can be rectified through the arc-shaped part and the rectifying parts, the phenomenon that vortexes are generated at the air inlet is reduced, and the air quality is improved. The influence of airflow turbulence on the oil smoke suction effect can be reduced, noise can be reduced, and the cooking mood of a user is improved. The range hood with the air inlet rectification function is applied to the range hood and stove all-in-one machine, the oil smoke suction effect can be improved, noise generated by airflow turbulence is reduced, and the cooking experience of a user is improved.

Description

Technical Field

[0001] The present application relates to the technical field of kitchen appliances, and in particular to a range hood and a range hood all-in-one with an air inlet rectification function. Background Art

[0002] A gas stove is a kitchen appliance used to provide direct fire heating for cooking, and a range hood is a kitchen appliance used to quickly extract the exhaust gas generated by the gas stove and the oil smoke generated during the cooking process and discharge them to the outside to purify the cooking air. As the name suggests, a range hood and range hood all-in-one refers to a kitchen appliance that integrates a gas stove and a range hood into one and has the functions of direct fire heating and cooking and purifying the cooking environment. A range hood and range hood all-in-one usually includes a stove, a gas stove and a range hood. The gas stove is installed on the countertop of the stove, and the range hood is installed at the end of the stove away from the user. The range hood has a smoke hood, a fan arranged in the smoke hood, and an air duct connected to the exhaust system. The fan is used to allow the oil smoke to enter the air duct of the smoke hood from the air inlet of the smoke hood and flow from the air duct to the exhaust system.

[0003] In the related art, researchers have conducted computer simulation analysis on the flow state of airflow entering the air inlet and in the air guide channel. The computer simulation results are shown in Figure 4 When oil smoke enters the air guide channel from the air inlet of the smoke hood, the airflow generates a large-scale vortex structure under the action of the suction of the main fan and the front wall of the smoke hood. The generation of vortex structure in the flow channel will increase the dissipation of flow field capacity and energy consumption, and the vortex will cause airflow turbulence, which is not only easy to have an adverse effect on the flow of airflow, but also to a certain extent will generate certain noise, affecting the user's cooking mood.

[0004] Therefore, there is an urgent need for a range hood and a range hood all-in-one with an air inlet rectification function to solve the above problems. Utility Model Content

[0005] One purpose of the present application is to provide a range hood and a range hood all-in-one with an air intake rectification function, which can rectify the incoming air and reduce the phenomenon of vortices generated at the air intake. It can not only reduce the impact of air flow turbulence on the oil fume absorption effect, but also reduce noise and improve the user's cooking mood.

[0006] In order to achieve the above objectives, this application adopts the following technical solutions:

[0007] In a first aspect, the present application provides a range hood with an air inlet rectification function, comprising:

[0008] A smoke collecting hood, wherein the smoke collecting hood has an air guiding passage, and the upper end of the front wall plate of the smoke collecting hood has an air inlet connected to the air guiding passage;

[0009] A rectification structure, the rectification structure includes an arc-shaped member and a rectification member, the arc-shaped member is suspended in the air guide channel and arranged toward the air inlet, at least part of the arc-shaped member is higher than the lower edge of the air inlet; a plurality of rectification members are arranged at intervals on the arc-shaped member along the extension direction of the arc-shaped member, and the interval between two adjacent rectification members forms a rectification channel with a downward extension tendency.

[0010] As an optional solution for the range hood with air inlet rectification function, the arc-shaped member is installed on the left wall plate and / or the right wall plate of the smoke collecting hood.

[0011] As an optional solution for the range hood with air inlet rectification function, the left wall plate and / or the right wall plate of the smoke collecting hood has a first connection structure, and the arc-shaped member has a second connection structure connected to the first connection structure.

[0012] As an optional solution for the range hood with an air inlet rectification function, one of the first connecting structure and the second connecting structure is a mounting hole, and the other is a mounting protrusion that can be inserted into the mounting hole.

[0013] As an optional solution for the range hood with air inlet rectification function, there are two arc-shaped parts, one arc-shaped part is connected to the left side of the rectification part and installed on the left wall panel of the smoke hood, and the other arc-shaped part is connected to the right side of the rectification part and installed on the right wall panel of the smoke hood.

[0014] As an optional solution for the range hood with air inlet rectification function, the angle α between the tangent on the upper end of the outer arc surface of the arc-shaped member and the horizontal plane is 30°≤α≤40°; and / or, the distance h between the top of the arc-shaped member and the lower edge of the air inlet is 27mm≤h<42mm.

[0015] As an optional solution for the range hood with air inlet rectification function, the angle α is 33°, 35° or 37°; and / or the angle h is 30mm, 32mm or 34mm.

[0016] As an optional solution for the range hood with air inlet rectification function, it also includes an oil cup, which includes a mounting portion and a storage portion. The mounting portion is mounted on the front wall plate of the smoke hood and is located below the rectification structure, and the storage portion has a storage cavity with an opening facing upward.

[0017] As an optional solution for the range hood with air inlet rectification function, it also includes a main fan, and at least two main fans are arranged in the air guide channel in sequence and at intervals along the air flow direction.

[0018] In a second aspect, the present application provides a stove and hood integrated machine, comprising a stove, a gas stove and a hood as described above, wherein the gas stove is installed on the countertop of the stove and the hood is installed at the rear end of the stove.

[0019] The beneficial effects of this application are:

[0020] The range hood with air inlet rectification function provided in the present application comprises a smoke collecting hood and a rectification structure. The rectification structure can rectify the airflow at the air inlet and reduce the phenomenon of vortex generated at the air inlet. It can not only reduce the impact of airflow turbulence on the oil fume absorption effect, but also reduce noise and improve the user's cooking mood.

[0021] The integrated range hood and stove provided in the present application can improve the fume absorption effect, reduce the noise generated by air flow turbulence, and enhance the user's cooking experience by applying the above-mentioned range hood with air inlet rectification function. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following briefly introduces the drawings required for use in the description of the embodiments of the present application. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on the contents of the embodiments of the present application and these drawings without paying any creative work.

[0023] Figure 1 It is a structural schematic diagram of a smoke and stove integrated machine provided in an embodiment of the present application;

[0024] Figure 2 yes Figure 1 A cross-sectional schematic diagram of a central smoke and stove integrated machine;

[0025] Figure 3 yes Figure 2 Structural diagram of the middle rectifier structure;

[0026] Figure 4 yes Figure 2 Flow field simulation diagram of the central air conditioner without a rectifier structure;

[0027] Figure 5 yes Figure 2 Flow field simulation diagram of the rectifier structure of the central range hood at different installation angles;

[0028] Figure 6 yes Figure 2 Flow field simulation diagram of the rectifier structure of the central range hood at different installation heights;

[0029] Figure 7 yes Figure 2 Schematic cross-sectional view of the oil cup.

[0030] Reference numerals:

[0031] 100, range hood; 200, gas stove; 300, stove top;

[0032] 1. Smoke hood; 11. Front wall panel; 12. Rear wall panel; 13. Right wall panel; 10. Air guide channel; 101. Air inlet; 102. Exhaust air outlet;

[0033] 2. Main fan;

[0034] 3. Rectification structure; 31. Arc-shaped part; 32. Rectification part;

[0035] 4. Oil cup; 41. Mounting portion; 411. Clamping protrusion; 42. Storage portion. DETAILED DESCRIPTION

[0036] Before any embodiments of the application are explained in detail, it is to be understood that the application is not limited in its application to the details of construction and the arrangement of components set forth in the following description or illustrated in the above drawings.

[0037] In this application, the terms "comprises", "includes", "has" or any other variations thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device that includes a series of elements includes not only those elements, but also includes other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of more restrictions, an element defined by the sentence "comprises a ..." does not exclude the presence of other identical elements in the process, method, article or device that includes the element.

[0038] In this application, the term "and / or" is a description of the association relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A exists alone, A and B exist at the same time, and B exists alone. In addition, the character " / " in this application generally indicates that the related objects before and after are in an "and / or" relationship.

[0039] In the present application, the terms "connect", "combine", "couple", and "install" may refer to direct connection, combination, coupling, or installation, or indirect connection, combination, coupling, or installation. For example, direct connection refers to two parts or components being connected together without the need for an intermediate piece, and indirect connection refers to two parts or components being connected to at least one intermediate piece respectively, and the two parts or components being connected via the intermediate piece. In addition, "connect" and "couple" are not limited to physical or mechanical connections or couplings, and may include electrical connections or couplings.

[0040] In the present application, it will be understood by those of ordinary skill in the art that relative terms (e.g., "about," "approximately," "substantially," etc.) used in conjunction with quantities or conditions include the values ​​and have the meaning indicated by the context. For example, the relative terms include at least the degree of error associated with the measurement of a specific value, the tolerances caused by manufacturing, assembly, and use associated with a specific value, and the like. Such terms should also be considered to disclose a range defined by the absolute values ​​of the two endpoints. Relative terms may refer to plus or minus a certain percentage (e.g., 1%, 5%, 10% or more) of the indicated value. Numerical values ​​that do not use relative terms should also be disclosed as specific values ​​with tolerances. In addition, "substantially" may refer to plus or minus a certain degree (e.g., 1 degree, 5 degrees, 10 degrees or more) on the basis of the indicated angle when expressing a relative angular position relationship (e.g., substantially parallel, substantially perpendicular).

[0041] In this application, it will be understood by those skilled in the art that the function performed by a component can be performed by one component, multiple components, one part, or multiple parts. Similarly, the function performed by a part can also be performed by one part, one component, or a combination of multiple parts.

[0042] In the present application, the terms "upper", "lower", "left", "right", "front", "back" and other directional words are described based on the orientation and positional relationship shown in the accompanying drawings, and should not be understood as limiting the embodiments of the present application. In addition, in the context, it is also necessary to understand that when it is mentioned that an element is connected to another element "upper" or "lower", it can not only be directly connected to another element "upper" or "lower", but also indirectly connected to another element "upper" or "lower" through an intermediate element. It should also be understood that directional words such as upper side, lower side, left side, right side, front side, back side, etc. not only represent the positive orientation, but can also be understood as the lateral orientation. For example, the bottom can include directly below, lower left, lower right, lower front, and lower back, etc.

[0043] In the present application, the terms “device”, “module” or “unit” may be implemented in the form of hardware or software to achieve specific functions.

[0044] In this application, the terms "calculate", "judge", "control", "determine", "identify", etc. refer to the operations and processes of a computer system or similar electronic computing device (e.g., controller, processor, etc.).

[0045] Figure 1 The schematic diagram of the structure of the smoke and stove integrated machine provided by the present application is shown. Figure 1As shown, the range hood integrated machine includes a stove 300, a gas stove 200, a range hood 100 and a main control system. The gas stove 200 is installed on the table of the stove 300, and the range hood 100 is erected at the end of the stove 300 away from the user. The main control system can be used to control the opening and closing of the range hood 100 and the working mode of the range hood 100 according to user instructions or control the opening and closing of the range hood 100 and the working mode of the range hood 100 according to monitoring data. The gas stove 200 is used to provide direct fire to facilitate user cooking, and the range hood 100 is used to absorb the exhaust gas generated by the gas stove 200 and the fumes generated during cooking and discharge them to other places outside the cooking environment, so as to purify the cooking environment and improve the user's cooking experience.

[0046] Next, for the sake of ease of understanding, the upper end of the overall smoke and stove integrated machine in the vertical direction is defined as the "upper end" or "above", and the lower end of the overall smoke and stove integrated machine in the vertical direction is defined as the "lower end" or "below"; the end of the overall smoke and stove integrated machine closer to the user is defined as the "front end", and the end of the overall smoke and stove integrated machine away from the user is defined as the "rear end"; the left side of the user when the user is facing the smoke and stove integrated machine is defined as the "left side", and the right side of the user when the user is facing the smoke and stove integrated machine is defined as the "right side".

[0047] Figure 2 Shows Figure 1 A cross-sectional view of a central smoke and stove combination machine. Figure 2 Combination Figure 1 As shown, the smoke hood 100 includes a smoke hood 1, a main fan 2 and a smoke exhaust system (not shown in the figure), the smoke hood 1 includes a front wall plate 11, a rear wall plate 12, a left wall plate, a right wall plate 13 and an upper wall plate, the front wall plate 11 and the rear wall plate 12 are arranged at intervals in the front-to-back direction, the left wall plate and the right wall plate 13 respectively cover the interval between the front wall plate 11 and the rear wall plate 12 in the left-to-right direction, and the upper wall plate covers the interval between the front wall plate 11 and the rear wall plate 12 at the top. The smoke hood 1 has an air guide channel 10, the main fan 2 is installed in the air guide channel 10, the front wall plate 11 of the smoke hood 1 has an air inlet 101 connected to the air guide channel 10, and the lower end of the smoke hood 1 has an exhaust air outlet 102 connected to the air guide channel 10. When the main fan 2 is started, negative pressure will be generated in the air guide channel 10, which will draw the oil smoke into the air guide channel 10 from the air inlet 101, and then make the oil smoke enter the exhaust channel of the exhaust system through the exhaust outlet 102, and finally be discharged to other places under the action of the exhaust system.

[0048] exist Figure 2In the example, the number of main fans 2 is two, and the two main fans 2 are arranged at intervals along the airflow direction in the air guide channel 10, and the front wall surfaces of the two main fans 2 are in contact with the inner surface of the front wall plate 11 of the smoke hood 1, and the rear wall surfaces of the two main fans 2 are in contact with the inner surface of the rear wall plate 12 of the smoke hood 1. In other embodiments, the number of main fans 2 is not limited to one or two, and can also be three, four, five, etc., and can be specifically designed according to the relationship between the overall size of the range hood 100 and the size of the main fans 2 and the required oil fume suction power, which is not limited here. It can be understood that the more the number of main fans 2, the higher the oil fume suction efficiency of the range hood 100, but the higher the cost of the range hood 100.

[0049] In order to allow more oil smoke to enter the air guide channel 10 in the smoke hood 1 from the air inlet 101 of the smoke hood 1, the upper end of the front wall plate 11 has an arc-shaped air inlet portion that gradually extends forward from bottom to top, and the air inlet 101 is opened in the arc-shaped air inlet portion. When the user is cooking, the main fan 2 is started, and the oil smoke floats upward. When the oil smoke floats to the arc-shaped air inlet portion, it will stagnate and accumulate at the arc-shaped air inlet portion under the blocking effect of the arc-shaped air inlet portion. Since the main fan 2 generates negative pressure in the air guide channel 10, the oil smoke at the arc-shaped air inlet portion quickly enters the air guide channel 10 under the suction effect of the negative pressure, thereby improving the oil smoke suction efficiency of the range hood 100.

[0050] In one embodiment, the air inlet 101 is a long hole extending along the arc surface of the arc-shaped air inlet portion, and a plurality of long holes are arranged at intervals along the left and right directions of the arc-shaped air inlet portion to form a group of air inlet 101. Such an arrangement can not only improve the efficiency of the range hood 100 in absorbing oil fumes, but also prevent larger debris from being sucked into the air guide channel 10, thereby ensuring the normal operation of the air guide channel 10.

[0051] The range hood 100 also includes a rectifying structure 3, which is installed in the air guide channel 10 and arranged opposite to the air inlet 101. The rectifying structure 3 is used to comb and guide the airflow entering the air inlet 101, which can reduce the generation of vortices to a certain extent, reduce noise, and enhance the user's cooking experience.

[0052] Figure 3 Shows Figure 2 The structural diagram of the rectifier structure 3 is shown in FIG. Figure 3 Combination Figure 2As shown, the rectifying structure 3 includes an arc-shaped member 31 and a rectifying member 32. The arc-shaped member 31 is suspended in the air guide channel 10 and arranged toward the air inlet 101. At least part of the arc-shaped member 31 is higher than the lower edge of the air inlet 101. A plurality of rectifying members 32 are arranged at intervals on the arc-shaped member 31 along the extension direction of the arc-shaped member 31, and the interval between two adjacent rectifying members 32 forms a rectifying channel with a downward extension trend. When the oil smoke enters the air inlet 101 and encounters the rectifying structure 3, a part of the oil smoke will flow along the rectifying channel under the guidance of the rectifying member 32 of the rectifying structure 3, and another part of the oil smoke will bypass the arc-shaped member 31 of the rectifying structure 3 and continue to flow downward. Through the guiding effect of the rectifying channel and the guiding effect of the arc-shaped member 31 on the airflow, the airflow can be smoothly guided to the direction of the main fan 2, reducing the generation of vortices, reducing the poor airflow and noise caused by airflow turbulence, and improving the efficiency of oil smoke extraction and the user's cooking experience.

[0053] In one embodiment, the arc-shaped member 31 is installed on the left wall plate and / or the right wall plate 13 of the smoke hood 1. Specifically, two arc-shaped members 31 are respectively connected to the left and right sides of the fairing member 32, one of the arc-shaped members 31 is installed on the left wall plate of the smoke hood 1, and the other arc-shaped member 31 is installed on the right wall plate 13 of the smoke hood 1.

[0054] In order to facilitate the assembly between the arc-shaped member 31 and the smoke hood 1, the left wall plate and / or the right wall plate 13 of the smoke hood 1 has a first connection structure, and the arc-shaped member 31 has a second connection structure connected to the first connection structure to achieve the connection between the arc-shaped member 31 and the smoke hood 1. The first connection structure can be a mounting hole, and the second connection structure can be a mounting protrusion. Figure 5 In the example, the arc-shaped member 31 has a mounting protrusion, and the left wall plate and the right wall plate 13 of the smoke hood 1 both have mounting holes that match the mounting protrusion. When installing the arc-shaped member 31, the mounting protrusion of the arc-shaped member 31 is inserted into the mounting hole of the smoke hood 1, thereby achieving the installation of the arc-shaped member 31. In another embodiment, as long as one of the first connecting structure and the second connecting structure is a mounting hole and the other is a mounting protrusion that can be plugged into the mounting hole, the assembly between the arc-shaped member 31 and the smoke hood 1 can be achieved. Of course, in other embodiments, the connection method of the first connecting structure and the second connecting structure can also be snap-on, for example, the first connecting structure is a snap-on protrusion and the second connecting structure is a snap-on groove, which can also achieve the assembly between the arc-shaped member 31 and the smoke hood 1, and is not limited here.

[0055] Figure 4 Shows Figure 2 The flow field simulation diagram of the hood 100 without the rectifying structure 3 is shown in FIG. Figure 4As shown in FIG. 1 , the R&D personnel conducted a computer simulation analysis of the airflow entering the air inlet 101 and its flow state in the air guide channel 10 during the R&D and design process. It can be seen that when the oil smoke enters the air guide channel 10 from the air inlet 101 of the smoke hood 1, the airflow generates a large-scale vortex structure under the suction of the main fan 2 and the front wall plate 11 of the smoke hood 1 (see FIG. 1 ). Figure 3 In the A0 region, the generation of eddy flow structures in the flow channel will increase the dissipation of the flow field capacity and increase energy consumption, and the eddy flow will cause airflow turbulence, which will not only easily have an adverse effect on the flow of the airflow, but also generate certain noise to a certain extent, affecting the user's cooking mood. By setting the rectifying structure 3, the eddy flow phenomenon in the A0 region can be effectively improved, the noise generated by the eddy flow of the airflow can be reduced, and the user's cooking experience can be improved.

[0056] Figure 5 yes Figure 2 The flow field simulation diagram of the rectifying structure of the hood 100 at different installation angles. Figure 5 As shown in FIG. 1 , the R&D personnel conducted a computer simulation analysis on the values ​​of the installation angle α of the arc-shaped installation plate between 0° and 50° during the R&D and design process. It can be seen that when the installation angle α of the arc-shaped member 31 is 50°, a larger eddy current area is generated on the side of the rectifier structure 3 (see FIG. 1 ). Figure 5 When the installation angle α of the arc-shaped member 31 is 40°, the eddy current zone generated by the rectifier structure 3 around the side becomes smaller than when α is 50° (see Figure 5 When the installation angle α of the arc-shaped member 31 is 30°, the eddy current zone generated on the 3 sides of the rectifying structure increases compared to when α is 40° (see Figure 5 When the installation angle α of the arc-shaped member 31 is 20°, 10°, and 0°, the eddy current zone generated by the 3 peripheral sides of the rectifying structure increases successively (see Figure 5 A14, A15, A16 in the figure). In short, when α is selected to be a value between 0° and 50°, as the installation angle α of the arc-shaped member 31 decreases, the vortex influence area of ​​the windward side area of ​​the rectifying structure 3 first decreases and then increases, and the vortex influence range of the leeward side area of ​​the rectifying structure 3 continues to decrease. According to the simulation results, when the angle α between the tangent line at the upper end of the outer arc surface of the arc-shaped member 31 and the horizontal plane is 30°≤α≤40°, the rectifying structure 3 has the best rectifying and guiding effect on the airflow, and the area and intensity of the vortex generated are minimized. In one embodiment, the range of α can also be 33°≤α≤37°, or α can be 33° or 34° or 35° or 36° or 37°, etc.

[0057] Figure 6 yes Figure 2 The flow field simulation diagram of the rectifier structure 3 of the central range hood at different installation heights. Figure 6As shown in FIG. 1 , the R&D personnel conducted a computer simulation analysis on the values ​​of the setting height h of the arc-shaped mounting plate between 12 mm and 42 mm during the R&D and design process. It can be seen that when the installation height h of the arc-shaped member 31 is 12 mm, a larger eddy current area is generated on the 3 sides of the rectifying structure (see FIG. 1 ). Figure 6 When the installation height h of the arc-shaped member 31 is 27 mm, compared with h of 12 mm, the eddy current zone generated by the 3-sided rectifier structure becomes smaller (see Figure 6 When the installation height h of the arc-shaped member 31 is 42 mm, the eddy current zone generated by the 3-sided rectifier structure is slightly increased compared to h of 27 mm (see Figure 6 A23 and A22), compared with h 12mm, the eddy current area generated on the 3rd side of the rectifying structure is reduced (see Figure 6 A23 and A21 in the figure). In short, when h is selected to have a value between 12mm and 42mm, as the installation height h of the arc-shaped member 31 increases, the vortex influence area of ​​the windward side area of ​​the rectifying structure 3 first decreases and then increases, and the vortex influence range of the leeward side area of ​​the rectifying structure 3 increases. According to the simulation results, when the distance h between the top of the arc-shaped member 31 and the lower edge of the air inlet 101 is 27mm≤h<42mm, the rectifying structure 3 has the best rectifying and guiding effect on the airflow, and the area and intensity of the vortex generated are minimized. In one embodiment, the range of h can also be 28mm≤h≤37mm, or h can be 30mm, or 32mm, or 34mm, or 35mm, or 36mm, or 37mm, etc.

[0058] The hood 100 further includes an oil cup 4, which is mounted on the front wall plate 11 of the fume hood 1 and is located below the rectifying structure 3. The oil cup 4 is used to initially collect and store the oil separated from the oil fume to prevent the oil separated from the oil from flowing freely, which is convenient for the subsequent cleaning of the hood 100. When the user performs cooking activities that generate a lot of oil fume, such as stir-frying and grilling, the oil fume contains a lot of oil. When the oil fume enters the air guide channel 10, part of the oil in the oil will be separated when the oil fume flows in the air guide channel 10. If the oil can flow into the oil cup 4, it is convenient for the subsequent cleaning of the hood 100.

[0059] Figure 7 Shows Figure 2 A cross-sectional view of the oil cup 4. Figure 7 Combination Figure 2As shown, the oil cup 4 includes a mounting portion 41 and a storage portion 42 connected to the mounting portion 41. The mounting portion 41 is detachably mounted on the front wall plate 11 of the smoke hood 1. The storage portion 42 has a storage cavity with an opening facing upward to collect and temporarily store oil stains. Furthermore, the mounting portion 41 has a clamping protrusion 411, and the front wall plate 11 of the smoke hood 1 has a mounting groove for the clamping protrusion 411 to be inserted, so as to achieve a detachable connection between the mounting portion 41 and the front wall plate 11. When the smoke hood 100 is subsequently cleaned, the oil cup 4 can be removed for cleaning to improve the cleaning efficiency.

[0060] In one embodiment, the oil cup 4 is preferably made of metal material, which can not only improve the structural strength of the oil cup 4 and extend the service life of the oil cup 4, but also the metal has oil repellency, so that the adhesion of oil stains on the surface of the oil cup 4 is poor, which is convenient for subsequent cleaning. In another embodiment, the oil cup 4 can also be made of polytetrafluoroethylene material, which is also oil repellent and convenient for subsequent cleaning.

[0061] The above shows and describes the basic principles, main features and advantages of the present application. Those skilled in the art should understand that the above embodiments do not limit the present application in any form, and any technical solution obtained by equivalent replacement or equivalent transformation falls within the protection scope of the present application.

Claims

1. A range hood with air inlet rectification function, characterized in that: include: A smoke collecting hood (1), wherein the smoke collecting hood (1) has an air guide channel (10) therein, and the upper end of the front wall plate (11) of the smoke collecting hood (1) has an air inlet (101) connected to the air guide channel (10); A rectifying structure (3), the rectifying structure (3) comprising an arc-shaped member (31) and a rectifying member (32), the arc-shaped member (31) being suspended in the air guide channel (10) and arranged toward the air inlet (101), at least a portion of the arc-shaped member (31) being higher than a lower edge of the air inlet (101); a plurality of the rectifying members (32) being arranged at intervals on the arc-shaped member (31) along an extension direction of the arc-shaped member (31), and the interval between two adjacent rectifying members (32) forming a rectifying channel having a tendency to extend downward.

2. The range hood with air inlet rectification function according to claim 1, characterized in that: The arc-shaped member (31) is mounted on the left wall plate and / or the right wall plate (13) of the smoke collecting hood (1).

3. The range hood with air inlet rectification function according to claim 2, characterized in that: The left wall plate and / or the right wall plate (13) of the smoke collecting hood (1) has a first connection structure, and the arc-shaped member (31) has a second connection structure connected to the first connection structure.

4. The range hood with air inlet rectification function according to claim 3, characterized in that: One of the first connection structure and the second connection structure is a mounting hole, and the other is a mounting protrusion that can be inserted into the mounting hole.

5. The range hood with air inlet rectification function according to claim 2, characterized in that: The number of the arc-shaped parts (31) is two, one of the arc-shaped parts (31) is connected to the left side of the rectifying part (32) and is installed on the left wall plate of the smoke hood (1), and the other arc-shaped part (31) is connected to the right side of the rectifying part (32) and is installed on the right wall plate (13) of the smoke hood (1).

6. The range hood with air inlet rectification function according to claim 1, characterized in that: The angle α between the tangent line at the upper end of the outer arc surface of the arc-shaped member (31) and the horizontal plane is 30°≤α≤40°; and / or the distance h between the top of the arc-shaped member (31) and the lower edge of the air inlet (101) is 27mm≤h<42mm.

7. The range hood with air inlet rectification function according to claim 6, characterized in that: The α is 33°, 35° or 37°; and / or, the h is 30mm, 32mm or 34mm.

8. The range hood with air inlet rectification function according to any one of claims 1 to 7, characterized in that: It also includes an oil cup (4), the oil cup (4) comprising a mounting portion (41) and a storage portion (42), the mounting portion (41) being mounted on the front wall plate (11) of the smoke hood (1) and located below the rectification structure (3), and the storage portion (42) having a storage cavity with an opening facing upward.

9. The range hood with air inlet rectification function according to any one of claims 1 to 7, characterized in that: It also comprises a main fan (2), at least two of the main fans (2) being arranged in sequence and spaced apart in the air guide channel (10) along the air flow direction.

10. A smoke and stove integrated machine, characterized in that: It comprises a stove (300), a gas stove (200) and a range hood with an air inlet rectification function as claimed in any one of claims 1 to 9, wherein the gas stove (200) is installed on the tabletop of the stove (300) and the range hood is installed at the rear end of the stove (300).

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