Exhaust assembly and range hood with same

Abstract

The utility model relates to the technical field of kitchen utensils, in particular to an exhaust assembly and a range hood with the same. The air exhaust assembly comprises an air duct shell and a smoke exhaust fan. The air duct shell is provided with a back plate, an air inlet and an air outlet; the smoke exhaust fan is detachably installed in the air duct of the air duct shell, the smoke exhaust fan is provided with an air suction port and a smoke exhaust port, the air suction port faces the air inlet and the back plate, the smoke exhaust port faces the air exhaust port, and the smoke exhaust port is matched with the air exhaust port in size; the back plate is provided with a through hole, the through hole is communicated with an air channel of the air channel shell, and the projection, facing the smoke exhaust fan, of the through hole is located outside the air suction opening. The utility model aims to solve the problem that an existing exhaust assembly cannot suck oil smoke and supplement air to an air duct, so that the oil smoke is gathered in a kitchen.

Description

Technical Field

[0001] The utility model relates to the technical field of kitchen appliances, in particular to an exhaust component and a range hood having the same. Background Art

[0002] A range hood is a kitchen appliance used to purify the kitchen environment. Typically installed above the kitchen stove, its primary function is to quickly extract and exhaust harmful cooking fumes from stove combustion and the cooking process. It also collects the condensed oil from the fumes. The range hood's operating principle involves three steps: fume intake, fume separation, and residual gas exhaust. When the range hood is powered on, the motor rotates at high speed, driving the impeller at the same time. This creates a vortex of negative pressure, drawing the fume into the hood. After passing through the filter and centrifugal force, the fume is separated and discharged through a check valve and exhaust pipe.

[0003] However, the area of ​​the smoke outlet of the existing oil suction component for absorbing oil smoke is limited, and the oil smoke in the kitchen cannot completely enter the smoke outlet of the oil suction component. The oil smoke easily flows to the exhaust component, and the existing exhaust component cannot absorb the oil smoke. At the same time, the air duct of the existing exhaust component cannot be replenished with air, causing the oil smoke to accumulate in the kitchen. Utility Model Content

[0004] The purpose of the utility model is to provide an exhaust assembly and a range hood having the same, so as to solve the problem that the existing exhaust assembly cannot absorb oil smoke, resulting in the accumulation of oil smoke in the kitchen.

[0005] In order to achieve the above-mentioned object, the present utility model adopts the following technical solution: an exhaust assembly for a range hood, comprising: an air duct housing and an exhaust fan;

[0006] The air duct housing has a back plate, an air inlet and an air outlet;

[0007] The smoke exhaust fan is detachably mounted in the air duct of the air duct housing, and has an air suction port and a smoke exhaust port, wherein the air suction port faces the air inlet and the back plate, and the smoke exhaust port faces the air outlet, and the size of the smoke exhaust port is adapted to that of the air outlet;

[0008] The back plate is provided with a through hole, the through hole being in communication with the air duct of the air duct housing, and the projection of the through hole facing the smoke exhaust fan is outside the air suction port.

[0009] According to one embodiment of the present invention, the air duct housing further comprises a front side panel, a left side panel and a right side panel, and the back panel, the front side panel, the left side panel and the right side panel together form an air duct of the air duct housing;

[0010] The air inlet is arranged at the bottom of the air duct of the air duct housing;

[0011] The air outlet is arranged at the top of the air duct of the air duct housing.

[0012] According to one embodiment of the present invention, a fan fixing structure is further included. The fan fixing structure is located in the air duct of the air duct housing, and two ends of the fan fixing structure are detachably connected to the smoke exhaust fan and the air duct housing respectively.

[0013] According to one embodiment of the present invention, the back plate has a first press-type portion and a second press-type portion convex outwardly;

[0014] The first press part and the second press part are both annular, the through hole is located at the outer edge of the first press part, and the inner ring radius of the first press part is 1.3-2 times the radius of the smoke exhaust fan;

[0015] The second pressing portion is eccentrically disposed in the first pressing portion.

[0016] According to one embodiment of the present invention, a plurality of through holes are provided, and the plurality of through holes are provided outside the first press-forming portion, and the plurality of through holes are respectively provided at intervals along the edge of the first press-forming portion.

[0017] According to one embodiment of the present invention, the diameter of the through hole is 3-6 mm, and the distance between the back plate and the air suction port is 2.5-8.5 cm.

[0018] According to one embodiment of the present invention, the fan is tilted in the air duct of the air duct housing, and openings are provided on both the left and right panels, and the openings are connected to the air suction port.

[0019] According to one embodiment of the present invention, the back plate is further provided with a hanging hole, and the hanging hole includes a hook hole, a limit screw hole and a push plate hole.

[0020] According to one embodiment of the present invention, the air duct housing further includes a top plate, the air outlet is provided on the top plate, a top plate hole is provided on the top plate, and the top plate hole is connected to the air duct of the air duct housing.

[0021] The utility model also provides a range hood, comprising the exhaust assembly, oil suction assembly, side baffle and oil cup described in any one of the above items;

[0022] The oil suction assembly is detachably mounted on the bottom of the oil suction assembly. The oil suction assembly is provided with a smoke inlet and a smoke outlet, and the smoke outlet is communicated with the air inlet.

[0023] There are two side baffles, which are detachably mounted on the left and right sides of the oil suction assembly respectively;

[0024] The oil cup is detachably mounted on the bottom of the oil suction assembly.

[0025] Compared with the prior art, the exhaust assembly of the present invention and the range hood having the same have the following advantages:

[0026] The utility model relates to an exhaust component, which is provided with a smoke exhaust fan of an air duct shell, and a through hole is provided on the back plate of the air duct shell. When the user is in use, the oil smoke enters the air intake port of the smoke exhaust fan from the air inlet, and the oil smoke is discharged from the smoke outlet of the smoke exhaust fan to the exhaust port and then discharged to the outside. At the same time, when the smoke exhaust fan is working, the airflow generated by the smoke exhaust fan drives the through hole to generate negative pressure, so that the gas containing oil smoke or air outside the through hole enters the air duct of the air duct shell, and the gas in the air duct of the air duct shell flows to the air intake port and then is discharged to the outside, thereby realizing the absorption of the oil smoke outside the exhaust component, realizing the air replenishment of the air duct, enhancing the exhaust effect of the oil smoke, avoiding the appearance of oil smoke outside the exhaust component, and being able to better discharge the oil smoke in the kitchen to the outside.

[0027] The utility model provides a range hood with an exhaust assembly, an oil suction assembly, a side baffle and an oil cup. When a user uses the range hood, the side baffle blocks the oil smoke to prevent the oil smoke from distributing to other places in the kitchen. When the exhaust assembly is working, negative pressure is generated in the smoke outlet, and the oil smoke enters the oil suction assembly from the smoke outlet, and the oil smoke in the oil suction assembly enters the exhaust assembly from the smoke outlet. In addition, the oil smoke near the exhaust assembly enters the exhaust assembly through the through hole, and the oil smoke is discharged to the outside from the exhaust outlet. At the same time, the oil in the exhaust assembly and the oil suction assembly flows back to the oil cup for collection, thereby preventing the accumulation of oil smoke in the kitchen. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific embodiments of the present invention, the following briefly introduces the drawings required for use in the specific embodiments. In all the drawings, each element or part is not necessarily drawn according to the actual scale.

[0029] Figure 1 This is a structural diagram of an exhaust assembly of the utility model;

[0030] Figure 2 This is another structural schematic diagram of an exhaust assembly of the utility model;

[0031] Figure 3 This is a schematic diagram of the overall structure of a range hood according to the present invention;

[0032] Figure 4This is another overall structural diagram of a range hood according to the present invention;

[0033] Figure 5 This is a cross-sectional view of a range hood according to the present invention.

[0034] In the figure: air duct housing 1, back plate 11, first press-formed portion 111, second press-formed portion 112, through hole 12, front side plate 13, left side plate 14, right side plate 15, hanging hole 16, hook hole 161, limit screw hole 162, push plate hole 163, top plate 17, top plate hole 171, smoke exhaust fan 2, oil suction assembly 3, side baffle 4, oil cup 5.

[0035] The realization of the functions and advantages of the present invention will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION

[0036] The following diagrams illustrate various embodiments of the present invention. For clarity, many practical details will be included in the following description. However, it should be understood that these practical details are not intended to limit the present invention. In other words, in some embodiments of the present invention, these practical details are not essential. Furthermore, to simplify the drawings, some commonly used structures and components are depicted in simplified schematic form.

[0037] It should be noted that all directional indications (such as up, down, left, right, front, back, etc.) in the embodiments of the present invention are only used to explain the relative position relationship, movement status, etc. between the various components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.

[0038] In addition, in the present invention, descriptions such as "first" and "second" are only used for descriptive purposes and do not specifically refer to the order or sequence, nor are they used to limit the present invention. They are only used to distinguish components or operations described with the same technical terms, and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one such feature. In addition, the technical solutions between the various embodiments can be combined with each other, but they must be based on the ability of ordinary technicians in this field to implement them. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the present invention.

[0039] In order to further understand the content, features and effects of the present invention, the following embodiments are given as examples and described in detail with reference to the accompanying drawings:

[0040] See also Figures 1 to 5The utility model provides an exhaust assembly for a range hood, comprising an air duct housing 1 and a smoke exhaust fan 2.

[0041] Specifically, the air duct housing 1 has a back plate 11, an air inlet and an air outlet. When the exhaust assembly is working, the smoke outlet generates negative pressure, the smoke enters the air inlet, and the smoke is discharged from the air outlet to the outside.

[0042] The smoke exhaust fan 2 is removably mounted within the air duct of the air duct housing 1. The smoke exhaust fan 2 has an air intake and a smoke exhaust port. The air intake port faces the air inlet and back panel 11, and the smoke exhaust port faces the exhaust port. The smoke exhaust port is sized to match the exhaust port. In this embodiment, the smoke exhaust fan 2 is removably mounted within the air duct of the air duct housing 1 by screws. During use, oil smoke enters the air intake of the smoke exhaust fan 2 from the air inlet, and then is discharged from the smoke exhaust port of the smoke exhaust fan 2 to the exhaust port, thereby exhausting the oil smoke to the outside.

[0043] The back panel 11 is provided with a through hole 12, which communicates with the air duct of the air duct housing 1. The projection of the through hole 12 facing the smoke exhaust fan 2 is outside the air intake port. When the smoke exhaust fan 2 is in operation, the airflow generated by the smoke exhaust fan 2 drives a negative pressure at the through hole 12, thereby allowing the gas outside the through hole 12 to enter the air duct of the air duct housing 1. The gas in the air duct of the air duct housing 1 then flows toward the air intake port and is discharged to the outside, thereby drawing in the oil smoke outside the exhaust assembly and enhancing the airflow within the air duct.

[0044] The utility model is provided with a smoke exhaust fan 2 of the air duct housing 1, and a through hole 12 is opened on the back plate 11 of the air duct housing 1. When the user is in use, the oil smoke enters the air suction port of the smoke exhaust fan 2 from the air inlet, and the oil smoke is discharged from the smoke outlet of the smoke exhaust fan 2 to the exhaust port and then discharged to the outside; at the same time, when the smoke exhaust fan 2 is working, the air flow generated by the smoke exhaust fan 2 drives the through hole 12 to generate negative pressure, so that the gas containing oil smoke or air outside the through hole 12 enters the air duct of the air duct housing 1, and the gas in the air duct of the air duct housing 1 flows to the air suction port and is discharged to the outside, thereby realizing the absorption of the oil smoke outside the exhaust component, realizing the air replenishment of the air duct, and enhancing the exhaust effect of the oil smoke; at the same time, avoiding the occurrence of oil smoke outside the exhaust component, so that the oil smoke in the kitchen can be better discharged to the outside.

[0045] Based on the above examples, please refer to Figure 4 and Figure 5 The air duct housing 1 of the present invention further includes a front side panel 13, a left side panel 14 and a right side panel 15. The back panel 11, the front side panel 13, the left side panel 14 and the right side panel 15 together form the air duct of the air duct housing 1.

[0046] The air inlet is arranged at the bottom of the air duct of the air duct housing 1 so that the oil smoke can enter the air duct of the air duct housing 1 through the air inlet.

[0047] The air outlet is arranged at the top of the air duct of the air duct housing 1 .

[0048] By setting the front side panel 13, the left side panel 14 and the right side panel 15, the back panel 11, the front side panel 13, the left side panel 14 and the right side panel 15 together form an air duct of the air duct shell 1, which is convenient for the smoke exhaust fan 2 to be installed in the air duct, so that the range hood can better discharge the oil smoke to the outside world; at the same time, when the air duct or the smoke exhaust fan 2 needs to be repaired or maintained, the air duct or the smoke exhaust fan 2 can be exposed by removing the front side panel 13, the left side panel 14 or the right side panel 15, which is convenient for the staff to carry out repair or maintenance.

[0049] Based on the above examples, please refer to Figure 1 and Figure 2 The present invention further includes a fan fixing structure, which is located within the air duct of the air duct housing 1. The ends of the fan fixing structure are detachably connected to the smoke exhaust fan 2 and the air duct housing 1, respectively. Specifically, the fan fixing structure includes screws or a fixing structure consisting of bolts and nuts. The fan fixing structure allows the smoke exhaust fan 2 to be mounted on the air duct housing 1. When maintenance or cleaning of the smoke exhaust fan 2 is required, the smoke exhaust fan 2 can be quickly removed from the air duct housing 1 by removing the fan fixing structure.

[0050] Based on the above examples, please refer to Figure 1 and Figure 2 The back plate 11 of the present invention has a first press-type portion 111 and a second press-type portion 112 that are protruding outward. The first press-type portion 111 and the second press-type portion 112 are provided to facilitate installation of the smoke exhaust fan 2 by the installer. At the same time, the first press-type portion 111 and the second press-type portion 112 are both protruding outward. When the installer installs the air duct housing 1, the first press-type portion 111 and the second press-type portion 112 come into contact with the wall, leaving a gap between the through hole 12 and the wall, so that gas can better enter the air duct housing 1.

[0051] The first profiling portion 111 and the second profiling portion 112 are both annular, and the through hole 12 is located at the outer edge of the first profiling portion. The inner ring radius of the first profiling portion 111 is 1.3-2 times the radius of the smoke exhaust fan 2. Specifically, the inner ring radius of the first profiling portion 111 is 1.3 times the radius of the smoke exhaust fan 2; similarly, the inner ring radius of the first profiling portion 111 is 1.5 times or 2 times the radius of the smoke exhaust fan 2. The first profiling portion 111 and the second profiling portion 112 are both set to be annular to facilitate the installation and disassembly of the exhaust assembly by the staff, and at the same time, it can increase the amount of air entering the through hole 12.

[0052] The second profiled portion 112 is eccentrically disposed in the first profiled portion 111. By eccentrically disposing the second profiled portion 112, excessive compression of the first profiled portion 111 is prevented during installation, and the back panel 11 having the first and second profiled portions 111, 112 can be better installed on the wall.

[0053] Based on the above examples, please refer to Figure 1 The present invention provides a plurality of through holes 12, which are provided outside the first press-formed portion 111 and are spaced apart along the edge of the first press-formed portion 111. Specifically, four through holes 12 are provided, which are spaced apart along the outer edge of the first press-formed portion 111, so that external air can better enter the air duct housing 1.

[0054] Based on the above examples, please refer to Figure 1 and Figure 2 , the diameter of the through hole 12 of the present invention is 3-6 mm, and the distance between the back plate 11 and the air suction port is 2.5-8.5 cm. In this embodiment, the diameter of the through hole 12 is 4 mm, and the distance between the back plate 11 and the air suction port is 5 cm; similarly, the diameter of the through hole 12 is 2.5 mm or 6 mm, and the distance between the back plate 11 and the air suction port is 2.5 cm or 8.5 cm. Through the provision of the through hole 12, the external gas can enter the air duct housing 1 more smoothly, not only absorbing the oil smoke outside the air duct housing 1, but also enhancing the gas in the smoke exhaust fan 2.

[0055] Based on the above examples, please refer to Figure 1 and Figure 5The fan of the present invention is arranged obliquely in the air duct of the air duct housing 1. The left side plate 14 and the right side plate 15 are both provided with openings, which are connected to the air intake port. By obliquely arranging the air duct of the air duct housing 1 and providing openings on the left side plate 14 and the right side plate 15, during use, the airflow generated by the smoke exhaust fan 2 drives the gas outside the openings into the air duct housing 1. Through the arrangement of the openings and the through-holes 12, air outside the air duct housing 1 can be sucked into the air duct housing 1 over a wider range, thereby preventing the appearance of oil smoke outside the exhaust component and better exhausting the oil smoke in the kitchen.

[0056] Based on the above examples, please refer to Figure 1 and Figure 2 The back panel 11 of the present invention also has a hanging hole 16, which includes a hook hole 161, a stop screw hole 162, and a push plate hole 163. The hanging hole 16 is located on the edge of the back panel 11 near the top, above the through hole 12. When securing the exhaust assembly, the hook hole 161 is used for hanging the hook, and the stop screw hole 162 is used for securing the stop screw. Simultaneously, the push plate hole 163 is used for hanging the push plate, thereby quickly securing the exhaust assembly and preventing it from falling off.

[0057] Based on the above examples, please refer to Figure 2 and Figure 3 The air duct housing 1 of the present invention further includes a top plate 17, on which the exhaust port is formed, and a top plate hole 171 is formed on the top plate 17, and the top plate hole 171 is communicated with the air duct of the air duct housing 1. By setting the top plate 17, the exhaust port and the top plate hole 171 are provided on the top plate 17, and when the user uses the range hood, oil smoke enters the air intake of the smoke exhaust fan 2 from the air inlet, and then is discharged from the smoke outlet of the smoke exhaust fan 2 to the exhaust port and then discharged to the outside. At the same time, when the smoke exhaust fan 2 is working, the airflow generated by the smoke exhaust fan 2 drives the top plate hole 171 to generate negative pressure, so that the gas containing oil smoke or air outside the top plate hole 171 enters the air duct of the air duct housing 1, thereby achieving the purpose of discharging the gas around the exhaust component to the outside.

[0058] The utility model also provides a range hood, please refer to Figure 3 、 Figure 4 and Figure 5 , including an oil suction component 3, a side baffle 4, an oil cup 5 and an exhaust component described in any of the above embodiments.

[0059] The oil suction assembly 3 is detachably mounted to the bottom of the oil suction assembly 3 . The oil suction assembly 3 defines an intake port and a smoke outlet, with the smoke outlet communicating with the air inlet. Specifically, the oil suction assembly 3 is detachably mounted to the bottom of the oil suction assembly 3 via screws. When the user uses the range hood, the exhaust assembly operates, creating negative pressure at the intake port. Oil smoke enters the oil suction assembly 3 from the intake port, and then enters the exhaust assembly from the smoke outlet.

[0060] The side baffles 4 are provided with two pieces, and the two side baffles 4 are detachably mounted on the left and right sides of the oil suction assembly 3. In the process of using the range hood, the two side baffles 4 block the oil smoke and prevent the oil smoke from emitting to other places in the kitchen.

[0061] The oil cup 5 is detachably mounted on the bottom of the oil suction assembly 3. The oil cup 5 is detachably mounted on the bottom of the oil suction assembly 3 by means of a snap. During use of the range hood, the oil cup 5 collects the oil condensed from the cooking fumes, preventing it from dripping onto the stovetop.

[0062] The utility model is provided with the exhaust component, the oil suction component 3, the side baffle 4 and the oil cup 5. When the user uses the range hood, the side baffle 4 blocks the oil smoke to prevent the oil smoke from distributing to other places in the kitchen. When the exhaust component is working, negative pressure is generated at the smoke outlet, and the oil smoke enters the oil suction component 3 from the smoke outlet, and the oil smoke in the oil suction component 3 enters the exhaust component from the smoke outlet; moreover, the oil smoke near the exhaust component enters the exhaust component through the through hole 12, and the oil smoke is discharged to the outside from the exhaust port; at the same time, the oil in the exhaust component and the oil suction component 3 flows back to the oil cup 5 for collection, thereby preventing the accumulation of oil smoke in the kitchen.

[0063] 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 aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some or all of the technical features therein. 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, and they should all be included in the scope of the claims and description of the present invention.

Claims

1. An exhaust assembly, characterized in that: Used for a range hood, comprising: an air duct housing (1) and a smoke exhaust fan (2); The air duct housing (1) has a back plate (11), an air inlet and an air outlet; The smoke exhaust fan (2) is detachably mounted in the air duct of the air duct housing (1), and the smoke exhaust fan (2) has an air suction port and a smoke exhaust port, the air suction port faces the air inlet and the back plate (11), and the smoke exhaust port faces the air outlet, and the size of the smoke exhaust port is adapted to the size of the air outlet; The back plate (11) is provided with a through hole (12), the through hole (12) is connected to the air duct of the air duct housing (1), and the projection of the through hole (12) facing the smoke exhaust fan (2) is outside the air suction port.

2. The exhaust assembly according to claim 1, characterized in that: The air duct housing (1) further comprises a front side panel (13), a left side panel (14) and a right side panel (15); the back panel (11), the front side panel (13), the left side panel (14) and the right side panel (15) together form an air duct of the air duct housing (1); The air inlet is arranged at the bottom of the air duct of the air duct housing (1); The air outlet is arranged at the top of the air duct of the air duct housing (1).

3. The exhaust assembly according to claim 2, characterized in that: It also includes a fan fixing structure, which is located in the air duct of the air duct housing (1), and two ends of the fan fixing structure are detachably connected to the smoke exhaust fan (2) and the air duct housing (1).

4. The exhaust assembly according to claim 2, characterized in that: The back plate (11) has a first press-type portion (111) and a second press-type portion (112) protruding outwards; The first press-type portion (111) and the second press-type portion (112) are both annular, the through hole (12) is located at the outer edge of the first press-type portion, and the inner ring radius of the first press-type portion (111) is 1.3-2 times the radius of the smoke exhaust fan (2); The second pressing portion (112) is eccentrically arranged in the first pressing portion (111).

5. The exhaust assembly according to claim 4, characterized in that: A plurality of through holes (12) are provided, and the plurality of through holes (12) are provided outside the first press-forming portion (111). The plurality of through holes (12) are respectively spaced apart along the edge of the first press-forming portion (111).

6. The exhaust assembly according to claim 1 or 5, characterized in that: The diameter of the through hole (12) is 3-6 mm, and the distance between the back plate (11) and the air suction port is 2.5-8.5 cm.

7. The exhaust assembly according to claim 2, characterized in that: The fan is arranged obliquely in the air duct of the air duct housing (1), and openings are provided on both the left side plate (14) and the right side plate (15), and the openings are communicated with the air suction port.

8. The exhaust assembly according to claim 1, characterized in that: The back plate (11) is further provided with a hanging hole (16), and the hanging hole (16) comprises a hook hole (161), a limiting screw hole (162) and a push plate hole (163).

9. The exhaust assembly according to claim 1, characterized in that: The air duct housing (1) further comprises a top plate (17), the top plate (17) being provided with the air outlet, the top plate (17) being provided with a top plate hole (171), and the top plate hole (171) being in communication with the air duct of the air duct housing (1).

10. A range hood, characterized in that: It comprises the exhaust assembly, oil suction assembly (3), side baffle (4) and oil cup (5) according to any one of claims 1 to 9; The oil suction assembly (3) is detachably mounted on the bottom of the oil suction assembly (3), and the oil suction assembly (3) is provided with a smoke inlet and a smoke outlet, and the smoke outlet is communicated with the air inlet; Two side baffles (4) are provided, and the two side baffles (4) are detachably mounted on the left and right sides of the oil suction assembly (3). The oil cup (5) is detachably mounted on the bottom of the oil suction assembly (3).

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