Range hood

Abstract

The invention relates to the technical field of kitchen appliances, in particular to a range hood. The range hood comprises a box body which comprises a front side wall and a rear side wall which are oppositely arranged in the first direction, and a containing cavity is formed; the smoke collecting hood is connected to one end of the box body, a smoke collecting cavity communicating with the containing cavity is formed in the smoke collecting hood, and a smoke inlet communicating with the smoke collecting cavity is formed in the side, away from the box body, of the smoke collecting hood; the partition plate is arranged in the exhaust fume collecting hood and at least used for dividing the exhaust fume collecting cavity into a first sub-cavity and a second sub-cavity which are arranged in the first direction, and the first sub-cavity is arranged close to the rear side wall; the draught fan assembly is arranged in the containing cavity, an air inlet of the draught fan assembly faces the rear side wall, and the draught fan assembly is at least used for driving airflow to directly flow into the first sub-cavity from the area, close to the rear side wall, of the smoke inlet and flow into the containing cavity from the first sub-cavity. According to the embodiment of the invention, the fan assembly drives the airflow to sequentially flow into the first sub-cavity and the accommodating cavity from the region, close to the rear side wall, of the smoke inlet, so that the problem that the airflow flies to a user can be improved or avoided.

Description

Technical Field

[0001] This application relates to the technical field of kitchen appliances, and particularly to a range hood. Background Art

[0002] Due to the limitations in the structural design of existing range hoods, during operation, the airflow is prone to escaping from the control of the negative pressure formed by the fan assembly and dispersing towards the user side, resulting in a situation where the airflow rushes towards the user, thus leading to a poor user experience. Summary of the Invention

[0003] In view of the above problems, this application provides a range hood that can improve or avoid problems such as the airflow rushing towards the user, thereby enhancing the user experience.

[0004] To solve the above technical problems, the concept of the technical solution adopted in this application is as follows: This application provides a range hood, which includes: a box body including a front side wall and a rear side wall oppositely arranged along a first direction and forming a receiving cavity; a smoke collecting hood connected to one end of the box body, the smoke collecting hood forming a smoke collecting cavity communicating with the receiving cavity, and having a smoke inlet communicating with the smoke collecting cavity on the side away from the box body; a partition plate disposed in the smoke collecting hood, at least for dividing the smoke collecting cavity into a first sub-cavity and a second sub-cavity arranged along the first direction, and the first sub-cavity is disposed close to the rear side wall; a fan assembly disposed in the receiving cavity, and the air inlet of the fan assembly faces the rear side wall, at least for driving the airflow to directly flow into the first sub-cavity from the area of the smoke inlet close to the rear side wall and flow into the receiving cavity from the first sub-cavity.

[0005] In some embodiments, one end of the partition plate is rotatably disposed on the fan assembly or the box body, and the other end of the partition plate extends towards the smoke inlet for adjusting the volumes of the first sub-cavity and the second sub-cavity.

[0006] In some embodiments, the box body further includes a first side wall and a second side wall oppositely arranged along a second direction, and the first side wall and the second side wall are respectively connected to the front side wall and the rear side wall to form the receiving cavity; the range hood further includes a rotating shaft extending along a third direction, and the rotating shaft is connected to one side of the partition plate close to the first side wall or the second side wall, wherein the rotating shaft is used to drive the partition plate to rotate clockwise or counterclockwise to reduce or increase the volume of the first sub-cavity, and the first direction, the second direction, and the third direction are perpendicular to each other.

[0007] In some embodiments, the range hood further includes a rotating shaft extending along the second direction; wherein the rotating shaft is used to drive the partition plate to swing along the first direction to reduce or increase the volume of the first sub-cavity, and the second direction is perpendicular to the first direction.

[0008] In some embodiments, the range hood further includes: a filtering assembly disposed in the smoke collecting cavity. The filtering assembly projects along a third direction away from the fan assembly to cover at least a part of the air inlet, and is inclined with respect to the first direction. The included angle between the extension line of the rear side wall towards the smoke collecting hood and the side of the filtering assembly facing away from the box body is set to be an acute angle. The third direction is perpendicular to the first direction; an oil cup assembly disposed in the smoke collecting cavity and connected to the side of the smoke collecting hood close to the front side wall, and at least a part of the filtering assembly extends to the side of the oil cup assembly close to the box body.

[0009] In some embodiments, the oil cup assembly includes: a connecting portion connected to the smoke collecting hood; a bottom portion connected to one end of the connecting portion facing away from the box body; a first guiding portion connected to one end of the bottom portion facing away from the connecting portion to form an oil collecting groove. The first guiding portion extends towards the filtering assembly and is inclined in a direction away from the connecting portion. The first guiding portion is used to guide the airflow to the filtering assembly.

[0010] In some embodiments, the oil cup assembly further includes a support disposed on the side of the first guiding portion facing away from the connecting portion.

[0011] In some embodiments, the included angle between the side of the first guiding portion facing away from the connecting portion and the filtering assembly is greater than or equal to 145° and less than 180°.

[0012] In some embodiments, the filtering assembly includes a first filter screen and a second filter screen. The first filter screen and the second filter screen are opposite and spaced apart, and the second filter screen is disposed closer to the fan assembly than the first filter screen.

[0013] In some embodiments, the range hood further includes an exhaust assembly disposed on the side of the box body away from the smoke collecting hood and close to the front side wall. The exhaust assembly connects the exhaust port of the fan assembly and the external environment.

[0014] Distinct from the prior art, the beneficial effects of the embodiments of the present application are as follows: The present application provides a range hood, which includes a box body, a smoke collecting hood, a partition board and a fan assembly. The box body includes a front side wall and a rear side wall oppositely arranged in a first direction, and forms a receiving cavity; the smoke collecting hood is connected to one end of the box body, the smoke collecting hood forms a smoke collecting cavity communicating with the receiving cavity, and an air inlet communicating with the smoke collecting cavity is formed on a side away from the box body; the partition board is arranged in the smoke collecting hood and is at least used for dividing the smoke collecting cavity into a first sub-cavity and a second sub-cavity arranged in the first direction, and the first sub-cavity is arranged close to the rear side wall; the fan assembly is arranged in the receiving cavity, and the air inlet of the fan assembly faces the rear side wall, and is at least used for driving air flow to directly flow into the first sub-cavity from an area of the air inlet close to the rear side wall, and flow from the first sub-cavity into the receiving cavity. By arranging the partition board in the smoke collecting hood, the partition board divides the smoke collecting cavity into a first sub-cavity and a second sub-cavity arranged in the first direction, and the first sub-cavity is arranged close to the rear side wall, and by arranging the fan assembly in the receiving cavity and the air inlet of the fan assembly facing the rear side wall, the negative pressure area formed by the suction force of the fan assembly is closer to the rear side wall of the box body, so that the fan assembly can drive air flow to directly flow into the first sub-cavity from an area of the air inlet close to the rear side wall, and flow from the first sub-cavity into the receiving cavity; moreover, by arranging the partition board, the negative pressure in the second sub-cavity can be weakened, and the air flow in the second sub-cavity can be blocked from flowing towards the first sub-cavity, so that the air intake of the second sub-cavity can be reduced, and the air flow can flow more directly into the first sub-cavity with stronger negative pressure, thereby reducing or avoiding the escape of the air flow towards the user side, and further improving or avoiding problems such as the air flow rushing towards the user, which helps to improve the user experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0015] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the following will briefly introduce the drawings required for the description of the embodiments. Obviously, the following drawings are only some embodiments of the present application. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings, where: Figure 1 FIG. 8 is a schematic structural diagram of an embodiment of the range hood provided by the present application; Figure 2 FIG. 11 is a sectional view of a perspective of the range hood provided by the present application; Figure 3 FIG. 14 is a sectional view of another perspective of the range hood provided by the present application; Figure 4 FIG. 17 is a schematic diagram of the air flow isoline simulation of the range hood provided by the present application with a partition board; Figure 5 FIG. 20 is a schematic diagram of the air fluid rendering simulation of the range hood provided by the present application with a partition board; Figure 6It is a schematic diagram of the air flow equivalent surface simulation after the partition of the range hood provided by this application; Figure 7 It is a schematic diagram of the air fluid rendering simulation after the partition of the range hood provided by this application; Figure 8 It is a bottom view of the range hood provided by this application; Figure 9 It is a schematic diagram of the structure of the oil cup assembly of the range hood provided by this application; Figure 10 It is a schematic diagram of the structure of another embodiment of the range hood provided by this application. Detailed implementation manners

[0016] Next, the technical solutions in the embodiments of this application will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of this application. It can be understood that the specific embodiments described herein are only used to explain this application, rather than limiting this application. Additionally, it should be noted that for the convenience of description, only parts related to this application rather than all structures are shown in the drawings. Based on the embodiments in this application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of protection of this application.

[0017] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings. They are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus cannot be understood as a limitation to this application. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly specifying the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the described features. In the description of this application, "a plurality" means two or more, unless otherwise specifically defined.

[0018] In the description of the present application, it should be noted that unless otherwise clearly defined and limited, the terms "installed", "connected", and "coupled" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection, an electrical connection, or a connection that allows mutual communication; it can be directly connected, or indirectly connected through an intermediate medium, and it can be the communication inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present application can be understood according to specific circumstances.

[0019] In the present application, unless otherwise clearly defined and limited, the first feature being "above" or "below" the second feature may include the direct contact between the first and second features, or may include the situation where the first and second features are not in direct contact but in contact through other features therebetween. Moreover, the first feature being "above", "over", and "on top of" the second feature includes the first feature being directly above and obliquely above the second feature, or simply indicating that the horizontal height of the first feature is higher than that of the second feature. The first feature being "below", "beneath", and "underneath" the second feature includes the first feature being directly below and obliquely below the second feature, or simply indicating that the horizontal height of the first feature is lower than that of the second feature.

[0020] The mention of "embodiment" in this document means that the specific features, structures, or characteristics described in connection with the embodiment may be included in at least one embodiment of the present application. The occurrence of this phrase at various positions in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment that is mutually exclusive with other embodiments. Those skilled in the art will explicitly and implicitly understand that the embodiments described herein can be combined with other embodiments.

[0021] Due to the limitations in the structural design of existing range hoods, during operation, the airflow is likely to escape from the control of the negative pressure formed by the fan assembly and disperse towards the user side, resulting in a situation where the airflow rushes towards the user, thus leading to a poor user experience.

[0022] To solve the above problems, the present application provides a range hood 100. The range hood 100 can be a wall-mounted range hood, a side-suction range hood, or an embedded range hood, but is not limited thereto. Please refer to Figures 1 to 3 , Figure 1 which is a schematic structural diagram of an embodiment of the range hood provided by the present application; Figure 2 which is a sectional view of the range hood provided by the present application from a perspective; Figure 3It is a sectional view of another perspective of the range hood provided by this application. The range hood 100 includes a box body 10, a smoke collecting hood 20, a partition 30 and a fan assembly 40. The box body 10 includes a front side wall 11 and a rear side wall 12 oppositely arranged along the first direction X-X, and forms a receiving cavity 10a. The smoke collecting hood 20 is connected to one end of the box body 10. The smoke collecting hood 20 forms a smoke collecting cavity 21 communicating with the receiving cavity 10a, and a smoke inlet 22 communicating with the smoke collecting cavity 21 is formed on the side away from the box body 10. The partition 30 is arranged in the smoke collecting hood 20 and is at least used to divide the smoke collecting cavity 21 into a first sub-cavity 211 and a second sub-cavity 212 arranged along the first direction X-X, and the first sub-cavity 211 is arranged close to the rear side wall 12. The fan assembly 40 is arranged in the receiving cavity 10a, and the air inlet 40a of the fan assembly 40 faces the rear side wall 12, and is at least used to drive the air flow to directly flow into the first sub-cavity 211 from the area of the smoke inlet 22 close to the rear side wall 12, and flow into the receiving cavity 10a from the first sub-cavity 211.

[0023] The front side wall 11 and the rear side wall 12 are respectively located on opposite sides of the receiving cavity 10a along the first direction X-X. The front side wall 11 is located on the side of the range hood 100 close to the user, and the rear side wall 12 is located on the side of the range hood 100 away from the user. The range hood 100 can be installed in the pre-installation area through the rear side wall 12, wherein the pre-installation area can be located on the wall or on the back wall of the cabinet. The rear side wall 12 can be installed in the pre-installation area by means of bolt connection, anchor bolt connection, hanger connection, magnetic adsorption connection or suction cup connection, etc., but not limited thereto.

[0024] The smoke collecting hood 20 can be connected to one end of the box body 10 close to the cooking appliance. The smoke collecting hood 20 forms a smoke collecting cavity 21 and a smoke inlet 22 communicating with the smoke collecting cavity 21, wherein the smoke collecting cavity 21 communicates with the receiving cavity 10a of the box body 10, and the smoke inlet 22 is located at one end of the smoke collecting cavity 21 away from the receiving cavity 10a. The range hood 100 is used to absorb the cooking fumes, steam, hot air and combustion products of gas, etc. generated during the cooking process of the cooking appliance, but not limited thereto. In the embodiments of the present application, the cooking fumes, steam, hot air and combustion products of gas, etc. are collectively referred to as air flow.

[0025] In some embodiments, the smoke collecting hood 20 and the box body 10 can be combined together by means of fixed connection, wherein the fixed connection method between the smoke collecting hood 20 and the box body 10 includes welding, bolt connection, snap connection or magnetic adsorption connection, but not limited thereto. A sealing member (not shown in the figure) can be arranged between the smoke collecting hood 20 and the box body 10 to improve the connection strength and sealing performance between the smoke collecting hood 20 and the box body 10, and reduce or avoid the air flow from escaping between the sealing member and the box body 10.

[0026] In some embodiments, the smoke hood 20 and the housing 10 may also be an integrally formed structure, which can improve the connection strength and sealing between the smoke hood 20 and the housing 10 .

[0027] The partition 30 is arranged in the smoke collecting hood 20, and the partition 30 is a flat plate-like structure. The plane where the partition 30 is located can be perpendicular to the first direction XX, or intersect with the first direction XX, so as to separate the smoke collecting chamber 21 into a first sub-chamber 211 and a second sub-chamber 212 arranged along the first direction XX. The first sub-chamber 211 is arranged near the rear side wall 12 relative to the second sub-chamber 212, and the second sub-chamber 212 is arranged near the front side wall 11 relative to the first sub-chamber 211. The fan assembly 40 is arranged in the accommodating chamber 10a, that is, on the side of the partition 30 away from the smoke inlet 22, and the air inlet 40a of the fan assembly 40 is arranged toward the rear side wall 12.

[0028] See also Figures 4 to 7 , Figure 4 It is a simulation schematic diagram of the airflow isosurface of the range hood provided in the present application with a partition; Figure 5 It is a schematic diagram of airflow flow simulation of a range hood provided by the present application with a partition; Figure 6 It is a simulation schematic diagram of the airflow isosurface after the partition of the range hood is removed provided in the present application; Figure 7 This is a schematic diagram of the airflow flow simulation after the partition of the range hood provided by the present application is removed. Compared with the case where no partition 30 is provided between the second sub-chamber 212 and the first sub-chamber 211, a partition 30 is provided between the second sub-chamber 212 and the first sub-chamber 211. The partition 30 can weaken the suction of the fan assembly 40 on the second sub-chamber 212, and block the airflow in the second sub-chamber 212 from flowing toward the first sub-chamber 211, so that the negative pressure in the second sub-chamber 212 is weakened, and the air intake of the second sub-chamber 212 can be reduced, so that more airflow flows directly into the first sub-chamber 211 with a stronger negative pressure, so that the airflow is gathered back and sucked into the first sub-chamber 211, thereby reducing or avoiding the airflow from escaping toward the user side, and thus reducing the impact of the airflow on the user. It can be seen that the provision of a partition 30 in the smoke collecting chamber 21 can reduce or avoid the airflow from escaping toward the user side compared to not providing a partition 30.

[0029] By arranging the partition plate 30 inside the smoke collecting hood 20, the partition plate 30 divides the smoke collecting cavity 21 into a first sub-cavity 211 and a second sub-cavity 212 arranged along the first direction X-X. The first sub-cavity 211 is arranged close to the rear side wall 12. The fan assembly 40 is arranged inside the accommodation cavity 10a, and the air inlet 40a of the fan assembly 40 faces the rear side wall 12. The negative pressure area formed by the suction of the fan assembly 40 is closer to the rear side wall 12 of the box body 10, so that the fan assembly 40 can drive the air flow to directly flow into the first sub-cavity 211 from the area of the smoke inlet 22 close to the rear side wall 12 and flow into the accommodation cavity 10a from the first sub-cavity 211. Moreover, by arranging the partition plate 30, the negative pressure in the second sub-cavity 212 can be weakened, and the air flow in the second sub-cavity 212 can be blocked from flowing towards the first sub-cavity 211, thereby reducing the air intake of the second sub-cavity 212, enabling more air flow to directly flow into the first sub-cavity 211 with stronger negative pressure, thus reducing or avoiding the air flow from escaping towards the user side, and further improving problems such as the air flow hitting the user, which helps to enhance the user experience.

[0030] In some embodiments, please continue to refer to Figure 2 , the range hood 100 is formed with a main flow channel 100a and an auxiliary flow channel 100b. The path of the main flow channel 100a includes the area of the smoke inlet 22 close to the rear side wall 12, the first sub-cavity 211, and the area of the accommodation cavity 10a close to the rear side wall 12, which are arranged in sequence along the air flow direction. In some embodiments, the first sub-cavity 211 is communicated with the accommodation cavity 10a and the first sub-cavity 211 is isolated from the second sub-cavity 212. The path of the auxiliary flow channel 100b includes the area of the smoke inlet 22 close to the front side wall 11, the second sub-cavity 212, and the area of the accommodation cavity 10a close to the front side wall 11. Among them, the air flow flowing into the area of the accommodation cavity 10a close to the front side wall 11 through the area of the smoke inlet 22 close to the front side wall 11 and the second sub-cavity 212 will flow towards the area of the accommodation cavity 10a close to the rear side wall 12 to converge into the main flow channel 100a. In some other embodiments, the first sub-cavity 211 is not communicated with the accommodation cavity 10a, and a gap can be formed between the partition plate 30 and the inner wall of the smoke collecting hood 20 to enable the first sub-cavity 211 to be communicated with the second sub-cavity 212. The path of the auxiliary flow channel 100b includes the area of the smoke inlet 22 close to the front side wall 11 and the second sub-cavity 212 arranged in sequence along the air flow direction. Among them, the air flow flowing into the second sub-cavity 212 through the area of the smoke inlet 22 close to the front side wall 11 will flow towards the first sub-cavity 211 to converge into the main flow channel 100a.

[0031] During the operation of the range hood 100, driven by the fan assembly 40, most of the air flow flows along the main flow path 100a, and a small part of the air flow flows along the auxiliary flow path 100b. On the one hand, since the air inlet 40a of the fan assembly 40 is arranged towards the rear side wall 12, the main flow path 100a has a shorter flow path relative to the auxiliary flow path 100b and is more affected by the negative pressure formed by the fan assembly 40, so that most of the air flow is restricted to flow in the main flow path 100a, which can reduce the air flow rate in the area where the smoke inlet 22 is close to the front side wall 11. This can not only reduce or avoid the risk of air flow escaping from the user side, but also improve the suction utilization rate of the fan assembly 40, reduce energy consumption, and reduce the flow resistance of the air flow, which helps to improve the smoking efficiency of the range hood 100. On the other hand, by forming the auxiliary flow path 100b, the pressure of the main flow path 100a can be relieved when the air flow rate is large, and the risk of air flow escaping can be reduced.

[0032] In some embodiments, please continue to refer to Figures 2 to 3 , one end of the partition plate 30 is rotatably arranged on the fan assembly 40 or the box body 10, and the other end of the partition plate 30 extends towards the smoke inlet 22 for adjusting the volumes of the first sub-chamber 211 and the second sub-chamber 212.

[0033] Among them, the partition plate 30 can rotate relative to the fan assembly 40 or the box body 10 to increase or decrease the volume of the first sub-chamber 211 while decreasing or increasing the volume of the second sub-chamber 212. Specifically, when the partition plate 30 increases the volume of the first sub-chamber 211, the volume of the second sub-chamber 212 decreases; when the partition plate 30 decreases the volume of the first sub-chamber 211, the volume of the second sub-chamber 212 increases.

[0034] In some embodiments, the partition plate 30 can be adjusted according to the magnitude of the air flow rate on the side of the smoke collecting hood 20 facing away from the box body 10 to adjust the volume of the first sub-chamber 211. When the air flow rate on the side of the smoke collecting hood 20 facing away from the box body 10 is large, the volume of the first sub-chamber 211 can be reduced by the partition plate 30, which can increase the flow velocity of the air flow in the first sub-chamber 211, so that a low-pressure area is formed in the first sub-chamber 211, and more air flow can be attracted to quickly flow into the first sub-chamber 211 through the area where the smoke inlet 22 is close to the rear side wall 12, thereby suppressing the air flow from escaping towards the user side or other areas. When the air flow rate on the side of the smoke collecting hood 20 facing away from the box body 10 is small, the volume of the first sub-chamber 211 can be increased by the partition plate 30 to slow down the flow velocity of the air flow in the first sub-chamber 211, so as to reduce the impact of the air flow on components such as the fan assembly 40 and the rear side wall 12. This can not only play a role in suppressing noise, but also reduce the risk of damage to components such as the fan assembly 40 and the rear side wall 12.

[0035] In some embodiments, the box body 10 further includes a first side wall 13 and a second side wall 14 which are oppositely arranged along the second direction Y-Y. The first side wall 13 and the second side wall 14 are respectively connected to the front side wall 11 and the rear side wall 12 to form a receiving cavity 10a. The range hood 100 further includes a rotating shaft (not shown in the figure), the rotating shaft extends along the third direction Z-Z, and the rotating shaft is connected to one side of the partition 30 close to the first side wall 13 or the second side wall 14. Wherein, the rotating shaft is used to drive the partition 30 to rotate clockwise or counterclockwise to reduce or increase the volume of the first sub-cavity 211, and the first direction X-X, the second direction Y-Y and the third direction Z-Z are perpendicular to each other.

[0036] Wherein, the rotating shaft can drive the partition 30 to rotate counterclockwise or clockwise, so that the partition 30 rotates towards or away from the rear side wall 12. For example, when the rotating shaft drives the partition 30 to rotate counterclockwise, the partition 30 rotates towards the rear side wall 12; when the rotating shaft drives the partition 30 to rotate clockwise, the partition 30 rotates away from the rear side wall 12. When the rotating shaft drives the partition 30 to rotate towards the rear side wall 12, the volume of the first sub-cavity 211 decreases, and the volume of the second sub-cavity 212 increases; when the rotating shaft drives the partition 30 to rotate away from the rear side wall 12, the volume of the first sub-cavity 211 increases, and the volume of the second sub-cavity 212 decreases.

[0037] The rotation direction of the partition 30 can be adjusted according to the magnitude of the air flow. For example, when the air flow on the side of the smoke collecting hood 20 away from the box body 10 is large, the rotating shaft can be used to drive the partition 30 to rotate towards the rear side wall 12 to reduce the volume of the first sub-cavity 211, which can increase the flow rate of the air flow in the first sub-cavity 211, so as to achieve efficient absorption of the air flow and reduce the load on the fan assembly 40; when the air flow on the side of the smoke collecting hood 20 away from the box body 10 is small, the rotating shaft can be used to drive the partition 30 to rotate away from the rear side wall 12 to slow down the flow rate of the air flow in the first sub-cavity 211, thereby alleviating the impact of the air flow on components such as the fan assembly 40 and the rear side wall 12.

[0038] In some embodiments, the rotating shaft is connected to one side of the partition 30 close to one of the first sidewall 13 and the second sidewall 14, and a first sliding groove (not shown in the figure) is formed on the side of the cabinet 10 or the blower assembly 40 close to the other of the first sidewall 13 and the second sidewall 14. The first sliding groove can be arranged in an arc shape. A first sliding member (not shown in the figure) is provided on the side of the partition 30 close to the other of the first sidewall 13 and the second sidewall 14. The first sliding member is slidably arranged in the first sliding groove. When the rotating shaft drives the partition 30 to rotate clockwise or counterclockwise, the first sliding member can slide along the first sliding groove. The first sliding groove can not only fix the side of the partition 30 away from the rotating shaft, reducing the risk of the side of the partition 30 away from the rotating shaft falling off, etc., but also the first sliding groove is used to guide and limit the sliding of the first sliding member, making the process of adjusting the volumes of the first sub-chamber 211 and the second sub-chamber 212 more labor-saving and smooth.

[0039] In some embodiments, the range hood 100 further includes a rotating shaft, and the rotating shaft extends along the second direction Y-Y. Wherein, the rotating shaft is used to drive the partition 30 to swing along the first direction X-X to reduce or increase the volume of the first sub-chamber 211, and the second direction Y-Y is perpendicular to the first direction X-X.

[0040] The rotating shaft can be connected to one end of the partition 30 close to the blower assembly 40. When the rotating shaft drives the partition 30 to swing along the first direction X-X towards the direction close to the rear sidewall 12, the volume of the first sub-chamber 211 decreases, and the volume of the second sub-chamber 212 increases; when the rotating shaft drives the partition 30 to rotate along the first direction X-X towards the direction away from the rear sidewall 12, the volume of the first sub-chamber 211 increases, and the volume of the second sub-chamber 212 decreases.

[0041] In some embodiments, the range hood 100 further includes a driving assembly (not shown in the figure). The driving assembly is connected to the rotating shaft. The driving assembly is used to drive the rotating shaft to rotate to drive the partition 30 to rotate clockwise or counterclockwise, or drive the partition 30 to swing along the first direction X-X; so that the partition 30 rotates towards or away from the rear sidewall 12. By providing the driving assembly, the degree of automation of the range hood 100 can be improved, which is beneficial to improving the user experience.

[0042] In some embodiments, a sliding component is provided on one side of the fan assembly 40 facing the smoke collecting hood 20. The sliding component is formed with a second sliding groove (not shown in the figure); the second sliding groove is directly formed on one side of the fan assembly 40 facing the smoke collecting hood 20. The second sliding groove extends along the first direction X-X. One end of the partition plate 30 is provided with a second sliding member (not shown in the figure), and the second sliding member is embedded in the second sliding groove and can slide along the second sliding groove. By sliding the second sliding member along the second sliding groove, the volumes of the first sub-cavity 211 and the second sub-cavity 212 can be adjusted. Specifically, when the second sliding member slides along the first direction X-X towards the direction close to the rear side wall 12, the volume of the first sub-cavity 211 decreases and the volume of the second sub-cavity 212 increases; when the second sliding member slides along the first direction X-X towards the direction away from the rear side wall 12, the volume of the first sub-cavity 211 increases and the volume of the second sub-cavity 212 decreases. Among them, the second sliding member can be connected to a driving component to slide along the second sliding groove under the driving action of the driving component. The cooperation between the second sliding groove and the second sliding member can not only play a role in fixing the partition plate 30, but also the second sliding groove is used to guide and limit the sliding of the second sliding member, so that the process of adjusting the volumes of the first sub-cavity 211 and the second sub-cavity 212 is more labor-saving and smooth.

[0043] Please continue to refer to Figures 2 to 3 , and at the same time refer to Figure 8 , Figure 8 is the bottom view of the range hood provided by the present application. In some embodiments, the range hood 100 further includes a filtering component 50. The filtering component 50 is disposed in the smoke collecting cavity 21, and the projection of the filtering component 50 along the second direction Y-Y away from the fan assembly 40 covers at least a part of the air inlet 22. The filtering component 50 is used to filter the air flow flowing into the smoke collecting cavity 21, intercept impurities such as liquid, grease, and fine particles in the air flow, but not limited thereto. The air flow after filtration has no impurities or the impurities are reduced, which can reduce the deposition of impurities on components such as the inner wall of the fan assembly 40, the smoke collecting hood 20, and the inner wall of the box body 10. It can not only reduce or avoid the risks such as frictional loss or overheating of the fan assembly 40 caused by the deposition of impurities on the fan assembly 40, thereby extending the service life of the fan assembly 40, but also reduce or avoid the risks such as the flow channels inside the smoke collecting hood 20 and the box body 10 being blocked by impurities, thereby improving the stability and reliability of the range hood 100.

[0044] The filtering component 50 is inclined with respect to the first direction X-X, and the included angle between the extension line of the rear side wall 12 facing the smoke collecting hood 20 and the side of the filtering component 50 facing away from the box body 10 is set to be an acute angle. With such a setting, the side of the smoke collecting hood 20 close to the front side wall 11 is lower in height than the end of the smoke collecting hood 20 close to the rear side wall 12, so that the side of the smoke collecting hood 20 close to the front side wall 11 can block the air flow from escaping towards the user side, thereby further improving the user experience.

[0045] In some embodiments, the filtering component 50 includes a first filter screen 51 and a second filter screen 52. The first filter screen 51 and the second filter screen 52 are opposite to each other and arranged at intervals, and the second filter screen 52 is arranged closer to the blower component 40 than the first filter screen 51. By performing secondary filtration on the air flow through the first filter screen 51 and the second filter screen 52, the filtering effect of the filter screen component can be improved.

[0046] In some embodiments, the first filter screen 51 can be a coarse filter screen, and the second filter screen 52 can be a fine filter screen. The mesh holes of the second filter screen 52 are smaller than those of the first filter screen 51. Among them, the first filter screen 51 is used to filter large-particle impurities, and the second filter screen 52 is used to filter tiny particles, so as to achieve layered filtration according to the size of the impurities, and the filtering efficiency and filtering effect of the filtering component 50 can be improved.

[0047] In some embodiments, the first filter screen 51 can be a metal filter screen, and the second filter screen 52 can be an activated carbon filter screen. The metal filter screen can intercept visible impurities such as grease and dust in the fluid. The activated carbon in the activated carbon filter screen has a pore structure and can adsorb harmful gases and odors in the cooking fume, so that the filtering component 50 can filter out visible impurities and invisible substances in the cooking fume, effectively improving the filtering effect of the filtering component 50, and thus better improving the kitchen environment. In some other embodiments, the first filter screen 51 can be an electrostatic precipitator filter screen, and the second filter screen 52 can be an activated carbon filter screen. The electrostatic precipitator filter screen can adsorb impurities such as grease and dust in the fluid through the action of electrostatic adsorption. In cooperation with the activated carbon filter screen, the filtering effect of the filtering component 50 can be improved.

[0048] In some embodiments, please continue to refer to Figure 8 , the filtering component 50 further includes a frame body 53, and the frame body 53 is fixedly connected to the smoke collecting hood 20. The frame body 53 is formed with an installation opening 53a for installing the first filter screen 51 and the second filter screen 52. The frame body 53 includes a second air guiding portion 54, and the second air guiding portion 54 is located in other areas on the side of the frame body 53 facing away from the blower component 40 except for the area close to the front side wall 11. For example, the second air guiding portion 54 is located on the side of the frame body 53 facing away from the blower component 40 and in the area on the same side as the rear side wall 12, the first side wall 13 and / or the second side wall 14.

[0049] The second air guiding portion 54 extends in a direction away from the smoke collecting hood 20 and is inclined towards the first filter screen 51. The second air guiding portion 54 is used to guide the air flow to the first filter screen 51. The arrangement of the second air guiding portion 54 can change the direction of the air flow, forcing the air flow that might otherwise escape along the direction away from the first filter screen 51 of the frame body 53 to the peripheral area to turn and flow towards the first filter screen 51, so that more air flow is sucked into the smoke collecting cavity 21, and the smoke gathering effect of the range hood 100 can be improved.

[0050] In some embodiments, a diversion space 50a is formed between the first filter screen 51 and the second filter screen 52. The range hood 100 further includes an air curtain mechanism 90, which is disposed in the smoke collecting cavity 21 and is located at one end of the smoke collecting hood 20 close to the front side wall 11. The air outlet 91 of the air curtain mechanism 90 is communicated with the diversion space 50a.

[0051] Among them, when the air flow rate is large or the air intake volume of the range hood 100 is small, the air flow that is not sucked away in time may escape towards the user side, resulting in the air flow directly hitting the user, or directly rising to the area near the front side wall 11 of the accommodation cavity 10a, which is not easy to be captured by the fan assembly 40 and leaks into the room, causing air pollution. In the embodiment of the present application, the air curtain air flow formed by the air blown out by the air curtain mechanism 90 is used to timely carry the rising or escaping air flow towards the user side from the diversion space 50a to the area of the smoke collecting cavity 21 close to the rear side wall 12.

[0052] Moreover, since the air outlet 91 of the air curtain mechanism 90 is communicated with the diversion space 50a, the air blown out from the air outlet 91 of the air curtain mechanism 90 blows in the diversion space 50a from one end of the smoke collecting hood 20 close to the front side wall 11 to one end of the smoke collecting hood 20 close to the rear side wall 12, which can guide the air flow located at one end of the smoke collecting hood 20 close to the front side wall 11 to gather towards one end of the smoke collecting hood 20 close to the rear side wall 12, and can reduce or avoid the air flow escaping towards the user side, thereby being able to improve or avoid problems such as the air flow hitting the user, which helps to improve the user experience.

[0053] In addition, the air outlet 91 of the air curtain mechanism 90 is arranged between the first filter screen 51 and the second filter screen 52, and the air curtain air flow formed by the air blown out by the air curtain mechanism 90 can condense the oil stains, and then intercept the oil stains on the first filter screen 51 and the second filter screen 52, reducing the pollution of the interior of the range hood 100 by the oil stains, and preventing the oil stains from dripping into the pot or the stove top.

[0054] Please refer to Figure 9 , Figure 9 which is a schematic structural diagram of the oil cup assembly of the range hood provided by the present application. In some embodiments, the range hood 100 further includes an oil cup assembly 60. The oil cup assembly 60 is disposed in the smoke collecting cavity 21 and is connected to one side of the smoke collecting hood 20 close to the front side wall 11, and at least part of the filtering assembly 50 extends to one side of the oil cup assembly 60 close to the box body 10.

[0055] By connecting the oil cup assembly 60 to one side of the smoke collecting hood 20 close to the front side wall 11, it is convenient to install and disassemble the oil cup assembly 60, and the installation and disassembly efficiency of the oil cup assembly 60 can be improved. Moreover, since the side of the smoke collecting hood 20 close to the front side wall 11 is lower in height than the end of the smoke collecting hood 20 close to the rear side wall 12, by connecting the oil cup assembly 60 to the side of the smoke collecting hood 20 close to the front side wall 11 and extending at least part of the filtering assembly 50 to the side of the oil cup assembly 60 close to the box body 10, so that under the action of gravity, impurities such as liquid and grease intercepted by the filtering assembly 50 can slide along the side of the filtering assembly 50 towards the oil cup assembly 60 and drip into the oil cup assembly 60, so that the oil cup assembly 60 can collect more impurities, and the problem of impurities dripping onto the stove top can be improved or avoided, thereby improving the user experience.

[0056] In addition, by arranging the second diversion part 54 in other areas of the frame body 53 on the side facing away from the fan assembly 40 except the side close to the front side wall 11, it is possible to prevent the second diversion part 54 from redirecting impurities such as liquid and grease to the first filter screen 51, and the collection effect and reliability of the oil cup assembly 60 can be improved.

[0057] In some embodiments, the oil cup assembly 60 includes a connecting part 61, a bottom part 62 and a first diversion part 63. The connecting part 61 is connected to the smoke collecting hood 20. The bottom part 62 is connected to one end of the connecting part 61 facing away from the box body 10. The first diversion part 63 is connected to one end of the bottom part 62 facing away from the connecting part 61 to form an oil collecting groove 60a. The first diversion part 63 extends towards the filtering assembly 50 and is inclined in a direction away from the connecting part 61, and the first diversion part 63 is used to guide the air flow to the filtering assembly 50.

[0058] Among them, the first diversion part 63 is arranged corresponding to the connecting part 61 to form an oil collecting groove 60a between the first diversion part 63 and the connecting part 61, and the oil collecting groove 60a is used to collect impurities such as liquid and grease. The connecting part 61 can be connected to the smoke collecting hood 20 in a detachable manner. The detachable connection manner between the connecting part 61 and the smoke collecting hood 20 can be a sliding groove connection, a bolt connection, a snap connection, a magnetic adsorption connection, a suction cup connection, a magic tape connection or an adhesive connection, but is not limited thereto.

[0059] By making the first diversion part 63 extend towards the filtering assembly 50 and be inclined in a direction away from the connecting part 61, so that the first diversion part 63 can change the direction of the air flow, the air flow that might otherwise escape towards the side close to the front side wall 11 can be forced to turn towards the filtering assembly 50, and the smoke control effect of the range hood 100 can be improved.

[0060] In some embodiments, the oil cup assembly 60 further includes a support 64, and the support 64 is arranged on the side of the first diversion part 63 facing away from the connecting part 61.

[0061] Among them, the support 64 can be an independent structure. The support 64 can be arranged on one side of the first diversion part 63 facing away from the connection part 61 in a fixed connection manner. The fixed connection manner between the support 64 and the first diversion part 63 can be bolt connection, snap connection, magnetic adsorption connection, suction cup connection, magic tape connection or adhesive connection, but not limited thereto. Of course, the support 64 can also be integrally formed on the first diversion part 63.

[0062] By arranging the support 64 on one side of the first diversion part 63 facing away from the connection part 61, when the oil cup assembly 60 is disassembled and placed on a certain bearing surface, the oil cup assembly 60 will not tilt towards the side of the first diversion part 63, which can avoid the impurities loaded in the oil collecting groove 60a from tilting and improve the loading effect of the oil cup assembly 60.

[0063] In some embodiments, the included angle between one side of the first diversion part 63 facing away from the connection part 61 and the filter assembly 50 is greater than or equal to 145° and less than 180°.

[0064] Among them, the included angle between one side of the first diversion part 63 facing away from the connection part 61 and the filter assembly 50 can be 145°, 146.5°, 147°, 148.2°, 149.5°, 150°, 152°, 154.5°, 155°, 157.8°, 158.5°, 159.2°, 160°, 162.5°, 164°, 165°, 166.8°, 168°, 170°, 175°, etc., but not limited thereto, and can be selected according to actual situations.

[0065] Please refer to Figure 10 , Figure 10 which is a schematic structural diagram of another embodiment of the range hood provided by the present application. In some embodiments, the smoke collecting hood 20 has a receiving groove 20a. The range hood 100 further includes a connection assembly 80, at least part of the connection assembly 80 is arranged in the receiving groove 20a, and the connection assembly 80 includes an elastic lock 81. The oil cup assembly 60 is connected to the connection assembly 80 through the elastic lock 81. The elastic lock 81 is configured such that when the oil cup assembly 60 is assembled in the receiving groove 20a, the oil cup assembly 60 is locked with the connection assembly 80 through the elastic lock 81, and one side of the oil cup assembly 60 close to the opening of the receiving groove 20a is flush with the end surface of the front end of the smoke collecting hood 20. The elastic lock 81 is further configured to release the lock between the oil cup assembly 60 and the connection assembly 80 when the oil cup assembly 60 is in a pressed state.

[0066] The oil cup assembly 60 is detachably arranged in the accommodating groove 20a through the connecting component 80. On the one hand, when the oil cup assembly 60 is assembled to the smoke collecting hood 20, the side of the oil cup assembly 60 close to the opening of the accommodating groove 20a is flush with the end face of the smoke collecting hood 20 away from the cabinet body 10, which can realize the concealment of the oil cup assembly 60 and reduce the impact of the oil cup assembly 60 on the aesthetics of the range hood 100. On the other hand, the setting of the elastic lock 81 can realize the simple assembly and extraction of the oil cup assembly 60. When it is necessary to pour out the impurities in the oil collecting tank 60a of the oil cup assembly 60 or clean the oil collecting tank 60a, the oil cup assembly 60 can be ejected through the elastic lock 81, which is convenient for the user to extract the oil cup assembly 60.

[0067] In some embodiments, the range hood 100 further includes a fixing block (not shown in the figure), and the fixing block is arranged in the accommodating groove 20a. Wherein, one end of the elastic lock 81 is movably connected to the fixing block, and the other end of the elastic lock 81 abuts against the oil cup assembly 60 when the oil cup assembly 60 is in a pressed state, providing an ejection force for the oil cup assembly 60.

[0068] Wherein, the elastic lock 81 can elastically expand and contract.

[0069] The fixing block is formed with a movable groove (not shown in the figure). When the oil cup assembly 60 is assembled to the accommodating groove 20a, the elastic lock 81 is compressed, and at least part of the elastic lock 81 is locked in the movable groove of the fixing block, and the end of the elastic lock 81 away from the movable groove abuts against the oil cup assembly 60.

[0070] When the oil cup assembly 60 is in a pressed state, the elastic lock 81 will also receive a pressing force transmitted through the oil cup assembly 60. The elastic lock 81 recovers under the action of the pressing force, and at least part of the elastic lock 81 pops out from the movable groove of the fixing block to provide a force opposite to the direction of the pressing force to the oil cup assembly 60, so that the locking between the oil cup assembly 60 and the connecting component 80 is released.

[0071] In some embodiments, the smoke collecting hood 20 may include a front plate, a back plate and side plates. One end of the side plate is connected to the front plate, and the other end of the side plate is connected to the back plate. The front plate, the back plate and the side plates surround to form a smoke collecting cavity 21. The whole range hood 100 can be hidden in the cabinet, that is, the front plate, the side plates and the back plate of the range hood 100 are all hidden in the cabinet, and only the oil cup assembly 60 is left outside to facilitate the user to disassemble the oil cup assembly 60 to pour out the waste oil. Optionally, the oil cup assembly 60 can also be made into a lifting type, and the whole range hood 100 (including the oil cup assembly 60) is completely embedded in the cabinet. When it is necessary to maintain the oil cup assembly 60, the oil cup assembly 60 is lowered to improve the cleanliness of the kitchen.

[0072] In some embodiments, the fan assembly 40 includes a fan main body 41 and a volute 42. The volute 42 extends along the first direction X-X, and one end of the volute 42 is connected to the front side wall 11, and the other end is spaced apart from the rear side wall 12. The volute 42 may have a hollow cylindrical structure, and the fan main body 41 is disposed inside the volute 42. The fan main body 41 includes a motor 411 and a fan blade 412. The fan blade 412 is disposed on the side of the motor 411 facing the rear side wall 12, so that the fan main body 41 can drive the air flow to directly flow into the first sub-chamber 211 from the area of the smoke inlet 22 close to the rear side wall 12, and flow from the first sub-chamber 211 into the accommodation chamber 10a.

[0073] In some embodiments, the exhaust port 40b of the fan assembly 40 is disposed on the top wall 15 of the box body 10 and is close to the front side wall 11. The range hood 100 further includes an exhaust smoke assembly 70. The exhaust smoke assembly 70 is disposed on the side of the box body 10 away from the smoke collecting hood 20 and is close to the front side wall 11. The exhaust smoke assembly 70 communicates with the exhaust port 40b of the fan assembly 40 and the external environment. The exhaust smoke assembly 70 is used to discharge the air flow sucked by the fan assembly 40 to the external environment. Among them, the external environment may be the outdoors.

[0074] The exhaust smoke assembly 70 includes a check valve 71 and a pipeline (not shown in the figure). One end of the pipeline communicates with the exhaust port 40b of the fan assembly 40, and the other end communicates with the external environment. The check valve 71 is disposed between the exhaust port 40b and the pipeline. The check valve 71 can close the exhaust port 40b when the fan assembly 40 stops operating to prevent the air flow in the pipeline from flowing back.

[0075] The above is only the implementation manner of the present application, and does not limit the patent scope of the present application. Any equivalent structure or equivalent process transformation made by using the content of the specification and drawings of the present application, or directly or indirectly applied in other related technical fields, is equally included in the patent protection scope of the present application.

Claims

1. An oil fume suction machine, characterized in that, The range hood comprises: The box body comprises a front side wall and a rear side wall which are arranged opposite to each other along a first direction and form a receiving cavity; A smoke collecting hood connected to one end of the box body, the smoke collecting hood is formed with a smoke collecting cavity connected to the accommodating cavity, and a smoke inlet connected to the smoke collecting cavity is formed on a side away from the box body; a partition plate, arranged in the smoke collecting hood, at least used to divide the smoke collecting chamber into a first sub-chamber and a second sub-chamber arranged along the first direction, and the first sub-chamber is arranged close to the rear side wall; A fan assembly is arranged in the accommodating cavity, and the air inlet of the fan assembly is arranged toward the rear side wall, at least for driving the airflow to flow directly from the area of ​​the smoke inlet close to the rear side wall into the first sub-cavity, and then flow from the first sub-cavity into the accommodating cavity.

2. The range hood according to claim 1, wherein One end of the partition is rotatably arranged on the fan assembly or the box body, and the other end of the partition extends toward the smoke inlet to adjust the volume of the first sub-cavity and the second sub-cavity.

3. The range hood according to claim 2, wherein, The box body further comprises a first side wall and a second side wall which are arranged opposite to each other along a second direction, wherein the first side wall and the second side wall are respectively connected to the front side wall and the rear side wall to form the accommodating cavity; The range hood also includes a rotating shaft, which extends along a third direction and is connected to a side of the partition close to the first side wall or the second side wall, wherein the rotating shaft is used to drive the partition to rotate clockwise or counterclockwise to reduce or increase the volume of the first sub-chamber, and the first direction, the second direction and the third direction are perpendicular to each other.

4. The range hood according to claim 2, wherein, The range hood further comprises a rotating shaft, and the rotating shaft is extended along the second direction; The rotating shaft is used to drive the partition to swing along the first direction to reduce or increase the volume of the first sub-chamber, and the second direction is perpendicular to the first direction.

5. The range hood according to any one of claims 1 to 4, characterized in that, The range hood further comprises: A filter assembly is arranged in the smoke collecting chamber, the projection of the filter assembly along the third direction facing away from the fan assembly covers at least a portion of the smoke inlet, and is arranged obliquely relative to the first direction, the angle between the extension line of the rear side wall toward the smoke collecting hood and the side of the filter assembly facing away from the box body is arranged at an acute angle, and the third direction is perpendicular to the first direction; The oil cup assembly is arranged in the smoke collecting chamber and connected to a side of the smoke collecting hood close to the front side wall. At least a part of the filter assembly extends to a side of the oil cup assembly close to the box body.

6. The range hood according to claim 5, characterized in that, The oil cup assembly comprises: A connecting portion connected to the smoke collecting hood; A bottom portion connected to an end of the connecting portion away from the box body; The first guide portion is connected to one end of the bottom away from the connecting portion to form an oil collecting trough. The first guide portion extends toward the filter assembly and is inclined in a direction away from the connecting portion. The first guide portion is used to guide the airflow to the filter assembly.

7. The range hood according to claim 6, wherein, The oil cup assembly further includes a support, and the support is arranged on a side of the first guide portion facing away from the connecting portion.

8. The range hood according to claim 6, wherein, An angle between the side of the first guide portion facing away from the connecting portion and the filter assembly is greater than or equal to 145° and less than 180°.

9. The range hood according to claim 5, wherein, The filtering component includes a first filter screen and a second filter screen. The first filter screen and the second filter screen are opposite to each other and arranged at intervals, and the second filter screen is arranged closer to the fan component than the first filter screen.

10. The range hood according to claim 5, wherein, The range hood further includes an exhaust component. The exhaust component is arranged on a side of the box body away from the smoke collecting hood and close to the front side wall. The exhaust component communicates the exhaust port of the fan component with the external environment.

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