Air guide structure and range hood

Abstract

The present application relates to the technical field of kitchen appliances, and provides a flow guide structure and a range hood. The flow guide structure comprises a shell, the shell is configured with a first assembly part suitable for detachable connection with a hood body of the range hood; the shell is configured with an air inlet, a flow guide cavity and an air outlet which are connected in sequence, and the air outlet faces an inlet of the hood body. The range hood comprises the hood body and the flow guide structure, and the hood body is provided with a second assembly part which is detachably connected with the first assembly part. The flow guide structure is an independent part which is detachably connected with the hood body, and is used for assisting smoke exhaust of the range hood. In the case that the structure of the hood body is unchanged, different models can be quickly matched by installing flow guide structures of different structures.

Description

Technical Field

[0001] This invention relates to the field of kitchen appliance technology, and more particularly to the airflow guiding structure and range hood of a range hood. Background Technology

[0002] A range hood is a kitchen appliance used to purify the kitchen environment. Installed above the stove, it extracts cooking fumes and steam to exhaust them outdoors, reducing indoor pollution, purifying the air, and providing safety features such as protection against poisoning and explosions. Range hoods have become an indispensable kitchen appliance in modern homes.

[0003] Among them, when the front end of the range hood is equipped with a flow guiding structure for guiding the smoke, and the flow guiding structure and the main structure of the range hood are integrally stamped, the range hood has strong integrity. However, the range hood and the processing mold have a one-to-one correspondence, the processing mold has low versatility, it is inconvenient to equip the range hood with different flow guiding structures, and it is not conducive to product diversification. Summary of the Invention

[0004] This invention aims to solve at least one of the technical problems existing in related technologies. To this end, this invention proposes a flow guiding structure, which is an independent component detachably connected to the range hood body, to assist in the exhaust of smoke from the range hood. By installing flow guiding structures of different structural forms without changing the structure of the range hood body, different models can be quickly matched.

[0005] The present invention also proposes a range hood.

[0006] According to a first aspect of the present invention, a flow guiding structure includes:

[0007] The housing has a first assembly part adapted to be detachably connected to the body of the range hood; and has a communicating air inlet, a guide cavity and an air outlet, the air outlet facing the inlet of the range hood body.

[0008] According to an embodiment of the present invention, the airflow guiding structure is detachably connected to the range hood body via a first assembly part, facilitating the installation of different airflow guiding structures on the range hood body. While maintaining the original structure of the range hood body, different types of airflow guiding structures can be installed to quickly match models with different appearances. The housing comprises an air inlet, an airflow guiding cavity, and an air outlet. Smoke enters the airflow guiding cavity from the air inlet, and the smoke within the guiding cavity is discharged into the range hood body from the air outlet. The smoke is then exhausted under the suction of the fan assembly within the range hood body, assisting the range hood body in extracting cooking fumes. The structure is simple and flexible.

[0009] According to one embodiment of the present invention, a flow guide is detachably connected inside the housing, and the flow guide and the housing form the flow guide cavity.

[0010] According to one embodiment of the present invention, the guide includes a condensation portion facing the air intake direction and a connecting portion extending along the condensation portion toward the bottom wall of the housing, the connecting portion extending to contact the housing.

[0011] According to one embodiment of the present invention, the end of the condensation portion away from the air outlet is inclined downward relative to the end of the condensation portion closer to the air outlet, and the condensation portion forms a preset angle with the horizontal direction.

[0012] According to one embodiment of the present invention, the end of the connecting portion is provided with a seepage-proof portion that bends toward the inside of the flow guiding cavity, the seepage-proof portion being in contact with the wall surface of the shell.

[0013] According to one embodiment of the present invention, the flow guide is an arc-shaped structure; or, the flow guide is a bent structure.

[0014] According to one embodiment of the present invention, the air inlet includes a plurality of air inlet holes, and each air inlet hole has a protrusion around the outer periphery of the air inlet hole, the protrusion protruding toward the inner side of the guide cavity.

[0015] According to one embodiment of the present invention, the housing is configured with a mounting cavity independent of the flow guide cavity, the mounting cavity being used to mount control components.

[0016] According to one embodiment of the present invention, the mounting cavity has a forward-facing mounting opening at which a control panel is mounted.

[0017] According to one embodiment of the present invention, the housing is further configured with a positioning portion suitable for insertion into the body of the range hood.

[0018] According to one embodiment of the present invention, a plurality of flow guiding cavities are constructed within the housing.

[0019] According to a second aspect of the present invention, a range hood includes a range hood body and a flow guiding structure as described above, wherein the range hood body is provided with a second assembly part that is detachably connected to the first assembly part.

[0020] According to one embodiment of the present invention, the first assembly part and the second assembly part are connected by at least one of snap-fit, fastener connection or magnetic connection.

[0021] According to one embodiment of the present invention, the range hood body includes a first oil guiding part forming a first oil guiding groove, and one end of the housing forming the air outlet extends to dock with the first oil guiding part, or the one end of the housing forming the air outlet extends into the first oil guiding groove.

[0022] According to one embodiment of the present invention, the range hood body further includes an oil collecting part forming an oil collecting cavity and a second oil guiding part forming a second oil guiding groove, the second oil guiding groove connecting the first oil guiding groove and the oil collecting cavity, and the second oil guiding part being located on at least one side of the range hood body.

[0023] The above-described one or more technical solutions in the embodiments of the present invention have at least one of the following technical effects:

[0024] The airflow guiding structure of this invention is detachably connected to the range hood body via a first assembly part, facilitating the installation of different airflow guiding structures on the range hood body. While maintaining the original structure of the range hood body, different airflow guiding structures can be installed to quickly match models with different appearances. The housing comprises an air inlet, an airflow guiding cavity, and an air outlet. Smoke enters the airflow guiding cavity from the air inlet, and the smoke within the guiding cavity is discharged into the range hood body from the air outlet. The smoke is then exhausted by the suction of the fan assembly within the range hood body, assisting the range hood body in extracting cooking fumes. The structure is simple and flexible.

[0025] Furthermore, the range hood of this embodiment includes a range hood body and a flow guide structure. The flow guide structure is detachably connected to the range hood body, allowing for flexible installation of flow guide structures of various shapes on the range hood body. Without altering the structure of the range hood body, the overall structure of the range hood can be changed by modifying the flow guide structure. The mold for the flow guide structure is simple, saving mold costs and shortening the development cycle. In addition, the shape of the flow guide structure can be customized according to requirements, increasing the scalability of the range hood's structural form.

[0026] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0027] To more clearly illustrate the technical solutions in the embodiments of the present invention or related technologies, the drawings used in the description of the embodiments or related technologies will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0028] Figure 1 This is a schematic diagram of the flow guiding structure provided in an embodiment of the present invention;

[0029] Figure 2 This is a schematic diagram of the flow guiding structure provided in an embodiment of the present invention installed on the body of the smoke hood;

[0030] Figure 3This is a longitudinal cross-sectional view of the flow guiding structure provided in an embodiment of the present invention; the longitudinal section here is a surface that extends forward and backward.

[0031] Figure 4 This is a three-dimensional structural diagram of the disassembled range hood provided in an embodiment of the present invention; the diagram is a rear view.

[0032] Figure 5 This is a three-dimensional structural diagram of the disassembled range hood provided in an embodiment of the present invention; the diagram is a frontal view.

[0033] Figure 6 This is a cross-sectional structural schematic diagram of the range hood provided in an embodiment of the present invention;

[0034] Figure 7 yes Figure 6 A magnified schematic diagram of a portion of the structure at point A.

[0035] Figure 8 This is a three-dimensional structural diagram of the disassembled state of the range hood provided in an embodiment of the present invention; and Figure 4 and Figure 5 The difference is that, Figure 8 The side panel of the range hood body was also disassembled;

[0036] In the attached diagram, the hollow arrows indicate the direction of flue gas flow.

[0037] Figure label:

[0038] 100: Housing; 110: Bottom wall; 111: Air inlet; 112: Protrusion; 113: Positioning part; 120: Air outlet; 130: Front wall; 131: Mounting port;

[0039] 200: Flow guide; 210: Condensation section; 220: Connecting section; 230: Leakage prevention section;

[0040] 300: Flow guide cavity;

[0041] 400: Mounting cavity;

[0042] 500: Range hood body; 510: First oil guide section; 511: First oil guide groove; 520: Side plate; 521: Second oil guide section; 522: Second oil guide groove; 530: Top and rear plate; 531: Mounting section. Detailed Implementation

[0043] The embodiments of the present invention will be described in further detail below with reference to the accompanying drawings and examples. The following examples are for illustrative purposes only and should not be construed as limiting the scope of the invention.

[0044] In the description of the embodiments of the present invention, it should be noted that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the usage state of the range hood, and are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or component referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the embodiments of the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance. In addition, in the description of the present invention, unless otherwise stated, "multiple," "multiple roots," and "multiple groups" mean two or more.

[0045] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" 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 the embodiments of the present invention based on the specific circumstances.

[0046] In embodiments of the present invention, unless otherwise explicitly specified and limited, "above" or "below" the second feature can mean that the first feature is in direct contact with the second feature, or that the first feature is in indirect contact with the second feature through an intermediate medium. Furthermore, "above," "on top of," and "over" the second feature can mean that the first feature is directly above or diagonally above the second feature, or simply that the first feature is at a higher horizontal level than the second feature. "Below," "below," and "under" the second feature can mean that the first feature is directly below or diagonally below the second feature, or simply that the first feature is at a lower horizontal level than the second feature.

[0047] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "example," "specific example," or "some examples," etc., refer to specific features, structures, materials, or characteristics described in connection with that embodiment or example, which are included in at least one embodiment or example of the present invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples. Moreover, without contradiction, those skilled in the art can combine and integrate the different embodiments or examples described in this specification, as well as the features of different embodiments or examples.

[0048] An embodiment of the first aspect of the present invention, in conjunction with Figures 1 to 8 As shown, a flow guiding structure is provided, including a housing 100. The housing 100 is configured with a first assembly part suitable for detachable connection with the range hood body 500 of a range hood. The housing 100 is configured with an air inlet 111, a flow guiding cavity 300 and an air outlet 120 that are connected to each other. The air outlet 120 faces the inlet of the range hood body 500.

[0049] The guide structure is detachably connected to the range hood body 500, allowing for the installation of various structures and shapes of guide structures on the range hood body 500. The guide structure is installed at the front end of the range hood body 500, enabling diverse front-end structures and thus diversifying the structure of the range hood. Smoke enters the guide cavity 300 from the air inlet 111 of the housing 100. The smoke within the guide cavity 300 is then discharged into the range hood body 500 from the air outlet 120. The smoke is then exhausted by the suction of the fan assembly within the range hood body 500. In other words, the guide structure guides the smoke into the range hood body 500, which then discharges it. The smoke within the guide cavity 300 contacts the wall surface of the guide cavity 300, causing the oil in the smoke to condense into oil droplets.

[0050] The structure of the housing 100 of the flow guiding structure can be configured as needed to diversify its appearance. The structure of the flow guiding cavity 300 inside the flow guiding structure can be configured according to actual needs to make it suitable for various flue gas environments. The connection method between the first assembly part and the flue gas machine body 500 can be selected as needed, such as insertion, snap-fit, fastener connection, or magnetic connection. When the first assembly part is inserted or snap-fitted to the flue gas machine body 500, the flue gas machine body 500 is provided with a second assembly part that is inserted or snap-fitted to the first assembly part. When the flow guiding structure is fastened to the flue gas machine body 500 through the first assembly part, the first assembly part is a hole adapted to the fastener, and the flue gas machine body 500 is also provided with a hole adapted to the fastener. When the flow guiding structure is magnetically connected to the flue gas machine body 500, the first assembly part is a magnetic component suitable for magnetic attraction to the flue gas machine body 500. The position of the first assembly part on the housing 100 is not limited, as long as the flow guiding structure and the smoke hood body 500 can be installed.

[0051] The airflow guiding structure in this embodiment is detachably connected to the range hood body 500. With the structure of the range hood body 500 remaining unchanged, different types of airflow guiding structures can be installed to quickly match different appearance models. The structure of the airflow guiding plate within the range hood body 500 can be set to a universal structure to improve the versatility of the range hood body 500 and also increase the versatility and utilization rate of the molds used to process the range hood body 500. By changing the structure of the airflow guiding structure in this embodiment, the overall structure of the range hood can be changed. Furthermore, the airflow guiding structure is simple in structure and small in size, which also simplifies the molds used to process the airflow guiding structure, saving mold costs and shortening the development cycle. In addition, the structural shape of the airflow guiding structure can be customized according to requirements, increasing the scalability of the structural form.

[0052] Understandably, reference Figures 3 to 8 As shown, a flow guide 200 is detachably connected inside the housing 100, and the flow guide 200 and the housing 100 form a flow guide cavity 300. By providing a detachable flow guide 200, flow guides 200 with different structures can be installed inside the housing 100, so that a housing 100 structure can be matched with different flow guides 200, so that flow guide cavities 300 with different structures can be formed inside the housing 100, thereby improving the structural diversity of the flow guide structure. Furthermore, the flow guide 200 is detachably connected to the housing 100, which also facilitates the disassembly of the flow guide 200 for cleaning or replacement.

[0053] The flow guide 200 can be installed on the housing 100 in various ways, such as fastener connection, snap-fit ​​or magnetic connection. For example, the flow guide 200 can be connected to the housing 100 by screws or rivets.

[0054] Understandably, reference Figure 3 and Figure 4 As shown, the guide member 200 includes a condensation section 210 facing the air intake direction and a connecting section 220 extending along the condensation section 210 towards the bottom wall 110 of the housing 100. The condensation section 210 prevents the flue gas from continuing to flow upward, and the oil in the flue gas is separated by the collision and contact between the flue gas and the condensation section 210. The connecting section 220, the condensation section 210, and the bottom wall 110 of the housing 100 limit the guide cavity 300 to ensure that the flue gas flows from the air outlet 120 to the main body of the range hood 500. The connecting section 220 also provides reinforcement and support to the housing 100.

[0055] Among them, reference Figure 1 , Figure 3 and Figure 4As shown, the air inlet 111 is opened on the bottom wall 110 of the housing 100, the condensation part 210 is located above the bottom wall 110, the rear end of the condensation part 210 faces the air outlet 120, the front end of the condensation part 210 faces the front wall 130 of the housing 100, and the front end and the left and right sides of the condensation part 210 are provided with connecting parts 220. The oil droplets condensed on the surface of the condensation part 210 can flow along the connecting parts 220 to the bottom wall 110 of the housing 100, and then discharge the oil droplets.

[0056] It is understandable that the end of the condensation section 210 away from the air outlet 120 is inclined downward relative to the end of the condensation section 210 near the air outlet 120, and the condensation section 210 forms a preset angle α with the horizontal direction, so that the oil droplets condensed on the surface of the condensation section 210 are guided to the connecting part 220, and the oil droplets condensed on the surface of the condensation section 210 are prevented from dripping directly onto the bottom wall 110 of the housing 100, thereby preventing the oil droplets from dripping out from the air inlet 111 on the bottom wall 110.

[0057] The lower surface of the condensation section 210 is inclined at a preset angle. The preset angle is required to ensure that the oil droplets condensed on the surface of the condensation section 210 are guided to the connecting section 220. The preset angle α can be set to be greater than or equal to 10° to ensure that the oil droplets are guided to the connecting section 220 and to prevent the oil droplets from dripping onto the outside of the housing 100 through the air inlet 111.

[0058] Understandably, reference Figure 3 and Figure 4 As shown, the end of the connecting part 220 is provided with a seepage-proof part 230 that bends inside the flow-guiding cavity 300. The seepage-proof part 230 fits against the wall of the shell 100. Oil droplets flowing downward from the connecting part 220 can be guided to the flow-guiding cavity 300 through the seepage-proof part 230, preventing the oil droplets from seeping to the outside of the flow-guiding cavity 300, and ensuring that other parts of the shell 100 are not contaminated by condensed oil droplets.

[0059] Furthermore, the bottom wall 110 of the housing 100 slopes downward from front to back, and the oil droplets on the bottom wall 110 flow towards the rear end of the housing 100 under the action of gravity, which can prevent the oil droplets from seeping towards the front end of the housing 100, so that the oil droplets on the bottom wall 110 can be discharged through the rear end of the housing 100.

[0060] It is understandable that the guide component has an arc-shaped structure (not shown in the figure), meaning the inner surface of the guide cavity is a smooth arc, which facilitates the smooth sliding of oil fumes along the arc-shaped wall of the guide component after condensation within the guide cavity. When the guide component includes a condensation section and a connecting section, both the condensation section and the connecting section are arc-shaped structures with smooth transitions; when the guide component includes a condensation section, a connecting section, and a seepage-proof section, all of these sections are arc-shaped structures with smooth transitions. The guide component can be a hemispherical structure, or it can be a structure formed by the smooth connection of multiple arc-shaped segments; the specific structural shape can be set as needed.

[0061] Understandably, reference Figure 3 and Figure 4 As shown, the guide component 200 has a bent structure, which is easy to process, convenient to install, and provides better support for the housing 100.

[0062] When the flow guide 200 includes a condensation part 210 and a connecting part 220, the condensation part 210 and the connecting part 220 are processed by bending. When the flow guide 200 includes a condensation part 210, a connecting part 220 and a seepage-proof part 230, the condensation part 210, the connecting part 220 and the seepage-proof part 230 are also processed by bending. The processing method is simple and convenient to process into flow guides 200 with various structural forms.

[0063] Understandably, reference Figure 6 and Figure 7 As shown, the air inlet 111 includes several air inlets, and each air inlet has a protrusion 112 around its outer periphery. The protrusion 112 protrudes towards the inner side of the guide cavity 300. The air inlets are opened on the bottom wall 110 of the housing 100. The protrusion 112 can prevent oil droplets on the bottom wall 110 of the housing 100 from dripping or overflowing along the air inlet.

[0064] The protrusion 112 can be a flange that folds inside the guide cavity 300 at the air inlet, or the protrusion 112 can be a boss machined on the surface of the bottom wall 110. The protrusion 112 can also be other structures that prevent oil droplets from overflowing from the air inlet. The structure of the protrusion 112 is diverse and can be selected according to the specific needs.

[0065] Understandably, reference Figure 2 and Figure 3 As shown, the housing 100 constructs a mounting cavity 400 independent of the flow guiding cavity 300. That is, the mounting cavity 400 is not connected to the flow guiding cavity 300, preventing oil fumes and droplets from overflowing into the mounting cavity 400 and keeping the mounting cavity 400 clean. The mounting cavity 400 is used to mount control components (not shown in the figure), ensuring the control components are in a clean environment and preventing oil fume contamination, thus helping to extend the service life of the control components.

[0066] The housing 100 has an independent guide cavity 300 and a mounting cavity 400 to separate the control components and the fumes into two independent spaces. The fumes drawn into the air inlet 111 smoothly enter the fan system through the guide cavity 300. The guide cavity 300 serves to improve the smoke extraction effect and prevent the fumes from contaminating the control components. The control components can be a control box or a control board, etc., and the space of the mounting cavity 400 needs to be adapted to the size and shape of the control box.

[0067] Understandably, reference Figure 2 and Figure 3 As shown, the mounting cavity 400 has a forward-facing mounting port 131, where a control panel is mounted. The control panel is connected to the control components so that the user can adjust the range hood.

[0068] Understandably, reference Figure 3 , Figure 6 and Figure 7 As shown, the housing 100 is configured with a positioning part 113 suitable for insertion into the range hood body 500, so as to facilitate the installation of the housing 100 onto the range hood body 500.

[0069] The position of the positioning part 113 can be selected as needed, such as being located on the bottom wall 110, rear wall, or side wall of the housing 100. (Reference) Figure 3 As shown, the rear end of the bottom wall 110 of the housing 100 has an outwardly extending positioning part 113. The positioning part 113 and the bottom wall 110 are integrally formed. The range hood body 500 has a groove that matches the positioning part 113 to facilitate positioning of the housing 100 and the range hood body 500. At the same time, the oil droplets collected on the bottom wall 110 of the housing 100 can also be guided into the range hood body 500 through the positioning part 113 so that the oil droplets can be collected in the oil collection chamber inside the range hood body 500 for convenient centralized treatment of the oil droplets.

[0070] It should be noted that the reference Figure 4 As shown, the positioning part 113 extends rearward relative to the rear wall of the housing 100. The bottom wall 110 of the housing 100 is cut out to form the positioning part 113 and the reinforcing part. The reinforcing part is located on both sides of the positioning part 113. The reinforcing part is folded upward and wrapped around the outside of the rear wall. The positioning part 113 is easy to process and makes full use of the material of the bottom wall 110.

[0071] Understandably, reference Figure 1 As shown, multiple parallel guide cavities 300 are constructed inside the housing 100, and flue gas from different positions can flow into the smoke machine body 500 through the corresponding guide cavity 300.

[0072] When a flow guide 200 is provided inside the housing 100, the connecting part 220 of the flow guide 200 can play a role in strengthening and supporting the housing 100. Multiple flow guide cavities 300 correspond to multiple flow guides 200, so the connecting part 220 of multiple flow guides 200 can provide multiple strengthening and support to the housing 100, thereby improving the structural strength of the housing 100.

[0073] refer to Figure 1 , Figure 3 and Figure 4As shown, two flow guides 200 are provided inside the housing 100. The flow guides 200 and the housing 100 define two independent flow guide cavities 300. A partial space of the mounting cavity 400 is formed between the two flow guide cavities 300, so that the control components in the mounting cavity 400 can be routed through the space between the two flow guide cavities 300, allowing the connecting wires to extend into the smoke hood body 500. The space in front of the two flow guide cavities 300 is the space of the mounting cavity 400, where the control components can be installed. The control panel of the control components can be installed in the mounting port 131 opened in the front wall 130 of the housing 100 for convenient operation.

[0074] An embodiment of the second aspect of the present invention, in conjunction with Figures 1 to 8 As shown, a range hood is provided, including a range hood body 500 and a flow guiding structure as described in one or more of the above embodiments. The range hood body 500 is provided with a second assembly part that is detachably connected to a first assembly part. Since the flow guiding structure has all the aforementioned beneficial effects, the range hood also has the aforementioned beneficial effects; further details will not be repeated here, but please refer to the above description.

[0075] The range hood body 500 can be equipped with different types of air guide structures to make the front end of the range hood body 500 structurally diverse, and it is also convenient to replace different air guide structures of the range hood body 500 to achieve structural diversity of the range hood.

[0076] It is understood that the first assembly part and the second assembly part are connected by at least one of the following methods: snap-fit, fastener connection, or magnetic connection (not shown in the figure). The connection methods between the first assembly part and the second assembly part are diverse, and the first assembly part and the second assembly part can also be fixed in multiple ways to enhance the fixation stability of the flow guiding structure and the smoke machine body 500.

[0077] The first assembly part and the second assembly part can be fixedly connected by means of buckles, claws, slides, magnets, screws, rivets, etc.

[0078] Understandably, reference Figure 6 and Figure 7 As shown, the range hood body 500 includes a first oil guiding section 510 forming a first oil guiding groove 511. One end of the housing 100 forming an air outlet 120 extends to connect with the first oil guiding section 510, or one end of the housing forming an air outlet extends into the first oil guiding groove (not shown in the figure). Oil droplets collected by the housing 100 are guided into the first oil guiding groove 511 and then guided through the first oil guiding groove 511 to the oil collecting chamber for centralized collection.

[0079] When one end of the housing 100 with the air outlet 120 extends to connect with the first oil guide part 510, that is, after the positioning part 113 of the housing 100 is positioned, it is connected with the first oil guide part 510. The structure of the housing 100 is simple, which helps to simplify the structure of the housing 100 and the range hood body 500. When one end of the housing 100 with the air outlet 120 extends into the first oil guide groove (not shown in the figure), that is, the end of the bottom wall of the housing is attached to the first oil guide part, so as to guide the oil droplets on the bottom wall into the first oil guide groove, which can prevent the oil droplets from leaking from the connection between the housing and the range hood body.

[0080] It should be noted that the housing 100 of the flow guiding structure can also be connected to a third oil guiding part (refer to the first oil guiding part 510) that restricts the flow of the third oil guiding groove. The third oil guiding part extends into the range hood body 500. At this time, the first oil guiding part can be removed from the range hood body 500, which can prevent oil droplets from leaking during the process of entering the first oil guiding groove and help keep the connection between the range hood body and the flow guiding structure clean.

[0081] Understandably, reference Figures 6 to 8 As shown, the range hood body 500 also includes an oil collecting section forming an oil collecting cavity and a second oil guiding section 521 forming a second oil guiding groove 522. The second oil guiding groove 522 connects the first oil guiding groove 511 and the oil collecting cavity, and the second oil guiding section 521 is located on at least one side of the range hood body 500. Oil droplets in the first oil guiding groove 511 are guided to the oil collecting cavity through the side of the range hood body 500, which can reduce the impact of the second oil guiding groove 522 on the internal space of the range hood body 500 and prevent oil droplets from dripping from the middle of the range hood body 500 onto the stove.

[0082] When the housing 100 is connected to a third guide section that restricts the flow of the third oil guide groove, the third oil guide groove is connected to the second oil guide groove 522. The oil collection section can be an oil cup.

[0083] Understandably, reference Figure 8 As shown, the range hood body 500 includes two side plates 520 arranged opposite to each other. At least one of the side plates 520 is formed into a second oil guide portion 521. The second oil guide portion 521 can be formed by bending the side plate 520. The processing of the second oil guide portion 521 is simple, which also helps to reduce the number of parts of the range hood body 500, simplify the assembly process, and shorten the assembly time.

[0084] refer to Figure 8 As shown, the range hood body 500 includes a top and rear plate 530 and side plates 520 located on opposite sides of the top and rear plate 530. Each side plate 520 is formed with a second oil guiding part 521, so that oil can be guided on both sides of the range hood body 500.

[0085] The top and rear plate 530 includes a top plate and a rear plate, which can be integrally formed or separate components. The top plate has a mounting portion 531 for mounting the body containing the fan assembly. Side plates 520 are connected to both sides of the top and rear plate 530, and each side plate 520 has a second oil guide portion 521 formed therein. The side plates 520 and the top and rear plate 530 can be integral components or separate components.

[0086] The above embodiments are for illustrative purposes only and are not intended to limit the scope of the invention. Although the invention has been described in detail with reference to the embodiments, those skilled in the art should understand that various combinations, modifications, or equivalent substitutions of the technical solutions of the invention do not depart from the spirit and scope of the invention and should be covered within the scope of the claims of the invention.

Claims

1. A flow guiding structure, characterized in that, As a detachable, independent component connected to the range hood body, it assists in smoke extraction for the range hood, including: The housing has a first assembly part adapted to be detachably connected to the body of the range hood; and has a communicating air inlet, a guide cavity and an air outlet, the air outlet facing the inlet of the range hood body; The housing is configured with a mounting cavity independent of the flow guide cavity, the mounting cavity being used to mount control components.

2. The flow guiding structure according to claim 1, characterized in that, A flow guide is detachably connected inside the housing, and the flow guide and the housing together form the flow guide cavity.

3. The flow guiding structure according to claim 2, characterized in that, The air guide includes a condensation section facing the air intake direction and a connecting section extending along the condensation section toward the bottom wall of the housing.

4. The flow guiding structure according to claim 3, characterized in that, The end of the condensation section away from the air outlet is inclined downward relative to the end of the condensation section closer to the air outlet, and the condensation section forms a preset angle with the horizontal direction.

5. The flow guiding structure according to claim 3, characterized in that, The end of the connecting part is provided with a seepage-proof part that bends inward toward the inside of the flow guide cavity, and the seepage-proof part is attached to the wall of the shell.

6. The flow guiding structure according to claim 2, characterized in that, The flow guide is an arc-shaped structure; or, the flow guide is a bent structure.

7. The flow guiding structure according to claim 1, characterized in that, The air inlet includes a plurality of air inlets, and each air inlet has a protrusion around its outer periphery, the protrusion protruding toward the inner side of the guide cavity.

8. The flow guiding structure according to claim 1, characterized in that, The mounting cavity has a forward-facing mounting opening where a control panel is mounted.

9. The flow guiding structure according to any one of claims 1 to 8, characterized in that, The housing is also configured with a positioning part suitable for insertion into the body of the range hood.

10. The flow guiding structure according to any one of claims 1 to 8, characterized in that, The housing contains a plurality of flow-guiding cavities arranged in parallel.

11. A range hood, characterized in that, The range hood includes a main body and a flow guiding structure as described in any one of claims 1 to 10, wherein the main body is provided with a second assembly part that is detachably connected to the first assembly part.

12. The range hood according to claim 11, characterized in that, The first assembly part and the second assembly part are connected by at least one of the following methods: snap-fit, fastener connection or magnetic connection.

13. The range hood according to claim 11, characterized in that, The range hood body includes a first oil guiding part that forms a first oil guiding groove, and one end of the housing that forms the air outlet extends to connect with the first oil guiding part, or one end of the housing that forms the air outlet extends into the first oil guiding groove.

14. The range hood according to claim 13, characterized in that, The range hood body also includes an oil collecting part that forms an oil collecting cavity and a second oil guiding part that forms a second oil guiding groove. The second oil guiding groove connects the first oil guiding groove and the oil collecting cavity, and the second oil guiding part is located on at least one side of the range hood body.

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