A shunt sealing structure of a range hood and the range hood

Abstract

This utility model discloses a diversion and sealing structure for a range hood and the range hood itself. The diversion and sealing structure includes a housing with an internal fume channel; at least one air inlet communicating with the fume channel is provided at the end of the housing; a diversion structure is disposed within the fume channel, dividing at least a portion of the fume channel into a first channel and a second channel. The range hood of this utility model includes the aforementioned diversion and sealing structure. By setting the diversion structure, the diversion and sealing structure of this utility model obstructs the airflow in the middle of the fume channel, allowing the airflow to pass through the first and second channels respectively, dispersing the negative pressure in the middle to both sides, making the suction force of the fume inlet more uniform, improving the fume extraction effect of the range hood, and enhancing the user experience.

Description

Technical Field

[0001] This utility model belongs to the field of home appliances, specifically, it relates to a diversion and sealing structure for a range hood and the range hood itself. Background Technology

[0002] Range hoods, as kitchen appliances used to purify the kitchen environment, are usually installed above cooking equipment. They can quickly remove, purify, and exhaust the fumes produced during food cooking. As an important kitchen appliance, range hoods have entered more and more homes.

[0003] Traditional top-mounted range hoods typically include a smoke collection hood, a fan housing located on the smoke collection hood, and a centrifugal fan installed inside the fan housing. For example, Chinese Patent Application No. 201310111282.8 discloses a range hood that includes a smoke collection chamber for gathering cooking fumes, a guide channel communicating with the smoke collection chamber, and an oil cup for collecting grease. The bottom of the smoke collection chamber is the air inlet, and the top of the smoke collection chamber has an air outlet. The guide channel is located above the air outlet. Existing range hoods usually utilize the high-speed rotation of a centrifugal fan to generate negative pressure for smoke extraction. Because the smoke extraction outlet of a range hood typically has a certain width to accommodate cooking equipment, it is easy to experience a phenomenon where the suction power is stronger in the middle and weaker on the sides, resulting in poor smoke extraction and affecting the user experience.

[0004] In view of this, this utility model is proposed. Utility Model Content

[0005] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art. The primary objective is to provide a flow-diverting and sealing structure for a range hood. By setting up the flow-diverting structure, the airflow in the middle of the fume channel is diverted, and the negative pressure in the middle is dispersed to both sides, so that the suction force of the fume extraction port is more uniform.

[0006] The second objective is to provide a range hood that improves smoke extraction efficiency and enhances user experience by installing a diversion and sealing structure that disperses negative pressure.

[0007] To solve the above-mentioned technical problems, the basic concept of the technical solution adopted by this utility model is as follows:

[0008] A diversion sealing structure for a range hood, comprising:

[0009] The housing has an internal fume duct and at least one air inlet at one end that communicates with the fume duct.

[0010] The end of the housing is provided with at least one air inlet that communicates with the fume duct;

[0011] A diversion structure is installed within the fume duct, dividing at least a portion of the fume duct into a first channel and a second channel.

[0012] Furthermore, the shunt structure includes

[0013] A fixing unit is installed on the inner wall of the housing;

[0014] A blocking unit is disposed on the fixing unit;

[0015] The blocking unit connects the first channel and the second channel to the air inlet, respectively.

[0016] Furthermore, the blocking unit is located in the middle of the fixing unit;

[0017] The first channel and the second channel are formed between the blocking unit and the fixing units on both sides.

[0018] Furthermore, the fixing unit includes

[0019] Top plate, connected to the housing;

[0020] There are two side plates, both of which are connected to the top plate and are located on both sides of the blocking unit;

[0021] The bottom plate is connected to the side of the side plate away from the top plate;

[0022] The base plate and the side plate correspond one-to-one;

[0023] The blocking unit is integrally bent and formed with the top plate;

[0024] The first channel and the second channel are formed between the side plate and the blocking unit, respectively.

[0025] Furthermore, the blocking unit is a flow divider;

[0026] The diverter plate extends from the middle towards the side plates on both sides;

[0027] The diversion plate extends from the fixing unit to the inner wall of the housing on the other side to block the airflow through the fume duct.

[0028] Furthermore, the top plate is fitted and connected to the front shell of the housing;

[0029] The bottom plate is fitted and connected to the rear plate of the housing;

[0030] The oil fume channel is formed between the inner wall of the top plate and the inner wall of the rear plate of the shell.

[0031] The end of the diverter plate abuts against the inner wall of the rear plate of the housing.

[0032] Furthermore, the side plate extends from the inner wall of the housing in a direction away from the air inlet;

[0033] The first channel and the second channel are both connected to a third channel;

[0034] The third channel is located on the side of the blocking unit away from the air inlet.

[0035] Furthermore, the two side plates gradually approach each other along the extension direction to form a tapering third channel.

[0036] Furthermore, the diversion structure is provided with an oil guide groove, which communicates with the inner wall of the housing, to guide the flow of condensed oil inside the range hood;

[0037] The oil guide groove extends along the edge of the top plate.

[0038] Furthermore, a range hood includes the aforementioned diversion and sealing structure.

[0039] By adopting the above technical solution, this utility model has the following beneficial effects compared with the prior art.

[0040] 1. The diversion sealing structure of this utility model divides at least part of the oil fume channel into a first channel and a second channel by setting a diversion structure. At the same time, the airflow in the middle of the oil fume channel is diverted, so that the airflow passes through the first channel and the second channel respectively, thereby achieving the diversion effect, dispersing the negative pressure in the middle to both sides, and making the suction of the oil fume outlet more uniform.

[0041] 2. The diversion sealing structure of this utility model has an oil guide groove, which also enables the diversion structure to prevent oil dripping. When the condensed oil drips down from above, the condensed oil at the front of the oil baffle will drip into the interior of the diversion structure, and then flow into the oil cup through the oil guide groove and the inner wall of the diversion structure.

[0042] 3. The range hood of this utility model improves the smoke extraction effect and enhances the user experience by installing a diversion and sealing structure that disperses negative pressure.

[0043] Meanwhile, this utility model has a simple structure, significant effects, and is suitable for widespread use.

[0044] The specific embodiments of this utility model will be described in further detail below with reference to the accompanying drawings. Attached Figure Description

[0045] The accompanying drawings, as part of this utility model, are used to provide a further understanding of the present utility model. The illustrative embodiments and descriptions of the present utility model are used to explain the present utility model, but do not constitute an undue limitation of the present utility model. Obviously, the drawings described below are merely some embodiments; those skilled in the art can obtain other drawings based on these drawings without creative effort. In the drawings:

[0046] Figure 1 This is an exploded view of the installation structure of the shell and the diversion structure in this utility model;

[0047] Figure 2 This is a schematic diagram of the diversion structure in this utility model;

[0048] Figure 3 This is a schematic diagram of the installation structure of the shell and the diversion structure in this utility model;

[0049] Figure 4 yes Figure 3 Enlarged view of point A in the middle;

[0050] Figure 5 This is a flow path diagram of the oil fume in this utility model.

[0051] In the diagram: 1. Housing; 11. Front housing; 12. Back housing; 13. Side housing; 14. Fume duct; 141. First duct; 142. Second duct; 143. Third duct; 15. Air inlet; 2. Diversion structure; 21. Fixing unit; 211. Top plate; 212. Side plate; 213. Bottom plate; 22. Blocking unit; 221. Diversion plate; 222. Flanged edge; 3. Oil guide groove.

[0052] It should be noted that these accompanying drawings and textual descriptions are not intended to limit the scope of the present invention in any way, but rather to illustrate the concept of the present invention to those skilled in the art by referring to specific embodiments. Detailed Implementation

[0053] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions in the embodiments will be clearly and completely described below with reference to the accompanying drawings. The following embodiments are used to illustrate this utility model, but are not intended to limit the scope of this utility model.

[0054] In the description of this utility model, it should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0055] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.

[0056] like Figures 1 to 5 As shown, this utility model discloses a range hood, which is a kitchen appliance used to purify the kitchen environment. It is usually installed above the cooking equipment (stove) and can quickly remove the oil fumes generated during the cooking process, purify the oil fumes and discharge them.

[0057] The range hood in this embodiment includes a casing, a smoke collection hood, a centrifugal fan, and an air outlet duct. The smoke collection hood is installed at the bottom of the casing and has at least one smoke extraction port. The smoke extraction port is connected to the air inlet of the centrifugal fan, and the air outlet duct is connected to the air outlet of the centrifugal fan.

[0058] In this embodiment, the casing can be formed into a hollow cuboid shape, and the centrifugal fan is housed inside the casing. That is, the centrifugal fan is hidden inside the casing, thereby improving the appearance of the range hood. At the same time, the casing can also protect the centrifugal fan and reduce noise.

[0059] In this embodiment, the range hood can be a top-mounted range hood or a side-mounted range hood.

[0060] In this embodiment, the working process of the range hood is as follows: After the range hood is started, the impeller of the centrifugal fan rotates at high speed, forming a negative pressure zone at the fume extraction port, and the oil fumes and odors in the kitchen are drawn into the range hood. After the oil fumes enter the range hood, they first pass through the filter screen, where large oil droplets and impurities are intercepted; the remaining tiny oil droplets and smoke move with the airflow in the duct; the air that has undergone preliminary separation continues to flow along the duct, and is finally discharged outdoors through the exhaust duct or through a common flue.

[0061] Existing range hoods typically use centrifugal fans to generate negative pressure at high speed to remove smoke. Since the smoke extraction vent of the range hood needs to be aligned with the cooking equipment below, the smoke extraction vent usually has a certain width. During the smoke extraction process, the suction force in the middle of the vent is strong while the suction force on the sides is weak, causing the smoke to spread to the sides and escape, and cannot be removed in time.

[0062] To address the issue of strong suction in the center and weak suction on the sides of the range hood, this embodiment provides a diversion and sealing structure for the range hood. This structure disperses the negative pressure in the center of the range hood's exhaust port to both sides, resulting in more uniform suction, improved smoke extraction, and enhanced user experience.

[0063] Specifically, the diversion and sealing structure of the range hood of this utility model includes a housing 1 and a diversion structure 2. An oil fume channel 14 is formed inside the housing 1 to allow oil fumes to enter the air inlet 15 of the centrifugal fan from the range hood's exhaust port. At least one air inlet 15 communicating with the oil fume channel 14 is provided at the end of the housing 1. The diversion structure 2 is disposed within the oil fume channel 14 and is used to divide at least a portion of the oil fume channel 14 into a first channel 141 and a second channel 142.

[0064] By setting up the diversion structure 2, when the centrifugal fan is started, airflow is formed in the fume duct 14. The diversion structure 2 divides the airflow in the middle of the fume duct 14 and guides the airflow into the first duct 141 and the second duct 142 respectively. In this way, the negative pressure in the middle of the air inlet 15 is diffused to both sides under the action of the diversion structure 2, so that the negative pressure at the air inlet 15 is uniform, thereby making the suction force at the fume extraction port of the range hood basically uniform, that is, achieving the purpose of uniform suction force at the fume extraction port of the range hood.

[0065] In this embodiment, the diversion structure 2 extends along the length of the housing 1. Specifically, the diversion structure 2 is arranged to run through the housing 1, completely dividing the fume duct 14 into a first channel 141 and a second channel 142. Alternatively, it can be partially arranged within the housing 1. At the location where the diversion structure 2 is provided, the airflow is obstructed, resulting in diversion. The airflow enters the first channel 141 and the second channel 142 respectively. At the location where the diversion structure 2 is not provided, the airflow from the first channel 141 and the second channel 142 merges into a single exhaust stream. Because the airflow is obstructed at the location where the diversion structure 2 is provided, the goal of uniform negative pressure can still be achieved.

[0066] In this embodiment, the diversion structure 2 is located in the middle of the housing 1 to block the airflow in the middle of the fume channel 14 to achieve a diversion effect. Specifically, the diversion structure 2 can be a blocking block with a certain width and length or other components with blocking function.

[0067] In this embodiment, the diversion structure 2 includes a fixing unit 21 and a blocking unit 22. The fixing unit 21 is installed on the inner side wall of the housing 1, and the blocking unit 22 is disposed on the fixing unit 21. The blocking unit 22 is located in the middle of the fixing unit 21, and the blocking unit 22 connects the first channel 141 and the second channel 142 to the air inlet 15 respectively. Preferably, the blocking unit 22 is located at the end of the fixing unit 21 near the air inlet 15. Furthermore, the blocking unit 22 is located near the air inlet 15, which can improve the negative pressure dispersion effect, make the suction of the fume extraction port more uniform, and improve the fume extraction effect of the range hood.

[0068] When the range hood is turned on, the airflow in the fume duct 14 is blocked by the blocking unit 22 and cannot pass through. Instead, it can only pass through the first channel 141 and the second channel 142 on both sides of the blocking unit 22. The negative pressure in the middle of the air inlet 15 diffuses to both sides under the action of the diversion structure 2, so that the negative pressure at the air inlet 15 is uniform.

[0069] In this embodiment, the housing 1 includes a front housing 11, a back housing 12, and two side housings 13. The front housing 11, the back housing 12, and the two side housings 13 form a fume duct 14. Preferably, the cross-section of the fume duct 14 is rectangular. The connection method of the front housing 11, the back housing 12, and the two side housings 13 is preferably a detachable connection, such as bolt connection, riveting connection, etc.

[0070] In this embodiment, the front housing 11 and the back housing 12 are the same plate, which does not represent the only installation form. The front housing 11 and the back housing 12 can be interchanged, that is, the front housing 11 can also be the back housing 12, and the back housing 12 can also be the front housing 11. In this embodiment, only one form is used as an example.

[0071] In this embodiment, the fixing unit 21 includes a top plate 211, which is connected to the front housing 11. A blocking unit 22 is mounted on the top plate 211 and extends from the top plate 211 toward the side near the back housing 12 until it abuts against the back housing 12. Preferably, the top plate 211 and the front housing 11 are arranged in parallel, and the upper surface of the top plate 211 abuts against the inner wall of the front housing 11, so that the fumes can only pass through from below the top plate 211. In this way, the blocking unit 22 forms a blocking surface between the front housing 11 and the back housing 12, thereby blocking the airflow in the middle of the fume channel 14.

[0072] In this embodiment, the fixing unit 21 further includes two side plates 212, both of which are connected to the top plate 211 and are located on both sides of the blocking unit 22. Preferably, the side plates 212 are arranged perpendicularly to the top plate 211. A first channel 141 and a second channel 142 are formed between the two side plates 212 and the blocking unit 22, respectively.

[0073] When the range hood is turned on, the airflow in the middle of the fume duct 14 is blocked by the blocking unit 22 and cannot pass through. Instead, it can only pass through the gap between the side plate 212 and the blocking unit 22, thus achieving the purpose of negative pressure dispersion.

[0074] In this embodiment, the fixing unit 21 also includes a base plate 213, and the base plate 213 and the side plate 212 are arranged in a one-to-one correspondence. The base plate 213 and the side plate 212 are connected to the side away from the top plate 211. Preferably, the base plate 213 and the side plate 212 are arranged vertically, that is, the base plate 213 and the top plate 211 are arranged in parallel.

[0075] In this embodiment, the base plate 213 and the back shell 12 are connected. Preferably, the base plate 213 and the back shell 12 are arranged in parallel, and the lower surface of the base plate 213 abuts against the inner wall of the back shell 12. By connecting the top plate 211 and the front shell 11, and by connecting the base plate 213 and the back shell 12, the flow divider structure 2 is fixed on the shell 1. The fixation on both sides can improve the connection strength, and under the suction force of the centrifugal fan, the stability and connection strength of the overall flow divider structure 2 can be guaranteed.

[0076] In this embodiment, the top plate 211, bottom plate 213, and side plate 212 can be integrally formed or welded in sections. In this embodiment, the blocking unit 22 and the top plate 211 are integrally formed. Specifically, the blocking unit 22 can be directly bent into shape, which is a simple forming method with high strength.

[0077] In this embodiment, the side plate 212 extends along the length of the housing 1. The end of the side plate 212 near the air inlet 15 abuts against or connects with the side housing 13. That is, there is no gap between the end of the side plate 212 and the side housing 13 to prevent airflow from passing between the end of the side plate 212 and the side housing 13.

[0078] In this embodiment, the length of the bottom plate 213 is much smaller than the length of the top plate 211, so as to simplify the overall diversion structure 2, reduce the space occupied by the bottom plate 213, and also reduce the influence of the bottom plate 213 on the airflow at the bottom of the fume duct 14, thereby further improving the stability of the structure.

[0079] In this embodiment, the blocking unit 22 is a diverter plate 221, which extends from the middle towards the side plates 212 on both sides. The diverter plate 221 extends from the fixing unit 21 to the inner wall of the housing 1 on the other side, that is, the diverter plate 221 is connected to the top plate 211 and extends towards the back housing 12 until it abuts against the inner wall of the back housing 12.

[0080] In this embodiment, the side of the diverter plate 221 away from the fixing unit 21 is provided with a flange 222, that is, the end of the diverter plate 221 away from the top plate 211 extends to form a flange 222. The flange 222 fits into the back shell 12. The flange 222 increases the contact area between the blocking unit 22 and the back shell 12, thereby improving stability.

[0081] In this embodiment, the blocking unit 22 is disposed at the end of the fixing unit 21 near the air inlet 15. At the end of the fixing unit 21 near the air inlet 15, a first channel 141 is formed between the blocking unit 22 and the left side plate 212, and a second channel 142 is formed between the blocking unit 22 and the right side plate 212. When the fixing unit 21 is no longer equipped with the blocking unit 22, a third channel 143 is formed between the two side plates 212. The third channel 143 is located on the side of the blocking unit 22 away from the air inlet 15, and both the first channel 141 and the second channel 142 communicate with the third channel 143.

[0082] Specifically, due to the obstruction of the blocking unit 22, the airflow passes through the first channel 141 and the second channel 142 on both sides, and then converges and is discharged in the third channel 143. This design improves the smoothness of airflow. In this embodiment, the two side plates 212 gradually approach each other along the extension direction to form a tapering third channel 143. As the side plates 212 extend, the third channel 143 gradually narrows, further improving the smoothness of airflow.

[0083] In this embodiment, taking the diverter plate 221 as an example, the first channel 141, the second channel 142, and the third channel 143 are further explained: The diverter plate 221 is located at one end of the top plate 211 near the air inlet 15, and the diverter plate 221 is perpendicular to the top plate 211. Because the diverter plate 221 is relatively thin, the first channel 141 is the vent between the left side plate 212 and the left end of the diverter plate 221, and the second channel 142 is the vent between the right side plate 212 and the right end of the diverter plate 221. The third channel 143 is the chamber formed by the two side plates 212 and the diverter plate 221. Due to the plate-like structure, the extension length is reduced, and the airflow quickly enters the third channel 143 after passing through the vents on both sides, and is discharged along the third channel 143.

[0084] In this embodiment, the diversion structure 2 is provided with an oil guide groove 3, which is connected to the inner wall of the housing 1. The oil guide groove 3 is located near the air inlet 15 and is used to guide the flow of condensed oil inside the range hood. Preferably, the housing 1 is provided with multiple oil leakage holes.

[0085] In this embodiment, the oil guide groove 3 is provided on the top plate 211, and the oil guide groove 3 extends along the edge of the top plate 211. Specifically, the top plate 211 and the side plates 212 on both sides respectively form a groove structure. The end of the top plate 211 where the diversion plate 221 is provided forms an outwardly flared structure extending along the length direction of the top plate 211. A groove structure is formed between the outwardly flared structure and the top plate 211. The groove structure in each section forms a continuous U-shaped oil guide groove 3.

[0086] When condensed oil drips from above, the oil at the front of the baffle plate will drip into the diversion structure 2, that is, onto the top plate 211, and flow along the top plate 211 into the oil guide groove 3, and then through the oil guide groove 3 and the inner wall of the housing 1 into the oil cup of the range hood. The oil at the rear of the baffle plate will drip directly into the housing 1, that is, into the fume duct 14, and flow into the oil cup of the range hood through the oil leakage hole on the housing 1, thus preventing oil dripping.

[0087] In this embodiment, taking a side-suction range hood as an example, the working process of the diversion sealing structure is explained in detail as follows: When the range hood is turned on, a negative pressure is formed at the air inlet 15 of the housing 1. The fumes generated by the stove enter the fume channel 14 inside the housing 1 through the smoke inlet below the front housing 11. The fumes are blocked by the diversion plate 221 and pass through the first channel 141 and the second channel 142 on both sides of the diversion plate 221, and finally converge and are discharged in the third channel 143. Because the diversion plate 221 diverts the fumes, the fumes pass through the first channel 141 and the second channel 142 on both sides of the diversion plate 221, and the negative pressure in the middle diffuses to both sides, making the negative pressure at the air inlet 15 uniform. This makes the suction force at the fume outlet of the range hood basically uniform, that is, achieving the purpose of uniform suction force at the fume outlet of the range hood.

[0088] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to preferred embodiments, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-described technical content to create equivalent embodiments without departing from the scope of the present utility model. The implementation schemes in the above embodiments can also be further combined or replaced. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A split seal structure of a range hood, characterized by, include: The housing (1) has an internal oil fume channel (14) and at least one air inlet (15) at the end that communicates with the oil fume channel (14); A diversion structure (2) is provided in the fume duct (14) to divide at least part of the fume duct (14) into a first channel (141) and a second channel (142).

2. The flow-diverting sealing structure of the range hood according to claim 1, characterized in that: The diversion structure (2) includes A fixing unit (21) is installed on the inner wall of the housing (1); A blocking unit (22) is disposed on the fixing unit (21); The blocking unit (22) connects the first channel (141) and the second channel (142) to the air inlet (15) respectively.

3. The flow-diverting sealing structure of the range hood according to claim 2, characterized in that: The blocking unit (22) is located in the middle of the fixing unit (21); The first channel (141) and the second channel (142) are formed between the blocking unit (22) and the fixing units (21) on both sides.

4. The flow-diverting sealing structure of the range hood according to any one of claims 2-3, characterized in that: The fixing unit (21) includes Top plate (211) is connected to the housing (1); There are two side plates (212), both of which are connected to the top plate (211) and are located on both sides of the blocking unit (22); The bottom plate (213) is connected to the side of the side plate (212) away from the top plate (211); The base plate (213) and the side plate (212) correspond one-to-one; The blocking unit (22) and the top plate (211) are integrally bent and formed; The first channel (141) and the second channel (142) are formed between the side plate (212) and the blocking unit (22), respectively.

5. The flow-diverting sealing structure of the range hood according to claim 4, characterized in that: The blocking unit (22) is a flow divider (221); The diverter plate (221) extends from the middle towards the side plates (212) on both sides; The diverter plate (221) extends from the fixing unit (21) to the inner wall of the housing (1) on the other side to block the airflow through the fume duct (14).

6. The flow-diverting sealing structure of the range hood according to claim 5, characterized in that: The top plate (211) is fitted and connected to the front shell (11) of the shell (1); The base plate (213) is attached to the rear plate of the housing (1); The oil fume channel (14) is formed between the inner wall of the top plate (211) and the inner wall of the rear plate of the shell (1); The end of the diverter plate (221) abuts against the inner wall of the rear plate of the housing (1).

7. The flow-diverting sealing structure of the range hood according to claim 4, characterized in that: The side plate (212) extends from the inner wall of the housing (1) in a direction away from the air inlet (15); The first channel (141) and the second channel (142) are simultaneously connected to the third channel (143); The third channel (143) is located on the side of the blocking unit (22) away from the air inlet (15).

8. The flow-diverting sealing structure of the range hood according to claim 7, characterized in that: The two side plates (212) gradually approach each other along the extension direction to form a tapering third channel (143).

9. The flow-diverting sealing structure of the range hood according to claim 5, characterized in that: The diversion structure (2) is provided with an oil guide groove (3), which is connected to the inner wall of the housing (1) to guide the flow of condensed oil in the range hood; The oil guide groove (3) extends along the edge of the top plate (211).

10. A range hood, characterized in that, It includes the diversion sealing structure as described in any one of claims 1-9.

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