Range hood

Abstract

The application relates to the field of range hoods, in particular to a range hood. The range hood comprises a shell, a baffle and a heating device. An air suction cavity is formed in the shell. An air suction opening in communication with the air suction cavity is formed at the bottom of the shell. The baffle is accommodated in the air suction cavity and is arranged above the air suction opening. The projection of the baffle to the bottom of the shell covers at least the part of the air suction opening which is aligned with the top plate of the shell. The heating device is arranged in the air suction cavity and is used for heating the baffle. The baffle is arranged in the shell to shield the air suction opening. The oil fume will accumulate on the baffle after long-time use. The heating device is used for melting the solidified oil on the baffle to remove the oil on the baffle, thereby reducing the risk of oil dripping from the air suction opening.

Description

Technical Field

[0001] This utility model relates to the field of range hoods, and in particular to a range hood. Background Technology

[0002] In related technologies, top-mounted range hoods have a top plate on the casing, with a portion aligned with the air intake. When the range hood is operating, as cooking fumes enter and exit the air intake chamber through the air intake, a mixture of oil and water from the fumes adheres to the inner wall of the air intake chamber. The top plate of the casing also serves as the top plate of the air intake chamber. After a certain amount of the oil and water mixture adhering to the lower surface of the top plate accumulates, it drips downwards and falls from the air intake onto the user's cooktop. To address this issue, a baffle is installed inside the air intake chamber to shield the portion of the top plate aligned with the air intake. However, over time, oil also accumulates on the baffle. Looking in from the air intake, the grime on the baffle affects the appearance of the range hood, and the accumulated oil can drip from the air intake. Utility Model Content

[0003] This utility model aims to at least solve one of the technical problems existing in the prior art. To this end, one objective of this utility model is to provide a range hood that uses a baffle inside the housing to block the air intake. Prolonged use of the baffle can lead to the accumulation of oil fumes. A heating device is used to melt the solidified oil on the baffle to remove the oil and reduce the risk of oil dripping from the air intake.

[0004] The range hood according to this application includes a housing, a baffle, and a heating device. An air intake chamber is formed inside the housing, and an air intake port communicating with the air intake chamber is formed at the bottom of the housing. The baffle is housed in the air intake chamber and is disposed above the air intake port. The projection of the baffle onto the bottom of the housing at least covers the portion of the air intake port that is aligned with the top plate of the housing. The heating device is disposed in the air intake chamber and is used to heat the baffle.

[0005] According to the range hood of this application, by installing a heating device on the baffle, oil fumes are less likely to accumulate on the bottom wall of the baffle, avoiding the risk of oil dripping from the bottom of the baffle. The heating device can effectively improve the overall cleanliness and ease of use of the range hood, further optimizing the user experience. Compared with traditional range hoods that require regular disassembly and cleaning of parts, the heating device in this application continuously or intermittently heats the baffle, softening or even liquefying the oil fumes before they condense, allowing them to flow smoothly along the surface of the baffle to a specific collection point, effectively reducing the solidification and adhesion of grease and preventing oil from dripping onto the cooking platform.

[0006] According to some embodiments of this application, an oil-blocking wall and a heating wall are formed on both sides of the baffle in the thickness direction, respectively. The oil-blocking wall is located on the side of the baffle closer to the air intake, and the heating wall is located on the side of the baffle away from the air intake. The heating device is disposed on the heating wall.

[0007] According to some embodiments of this application, the suction chamber is formed with an oil collection area, and the oil baffle wall is inclined from high to low in the direction toward the oil collection area.

[0008] According to some embodiments of this application, the range hood further includes: a connecting part, which is disposed on the edge of the baffle and connects the baffle to the housing, and a weight reduction hole is formed on the connecting part.

[0009] According to some embodiments of this application, the range hood further includes: an oil scraping device disposed inside the air intake cavity, the oil scraping device having an oil scraping element formed on it that contacts the bottom surface of the baffle, the oil scraping device being movable within the air intake cavity to scrape the bottom surface of the baffle by the oil scraping element.

[0010] According to some embodiments of this application, an oil storage chamber is formed inside the oil scraping device, and an oil collection port is provided in the oil storage chamber, which is open to the top. The oil collection port is located on one side of the oil scraping member in the moving direction of the oil scraping device.

[0011] According to some embodiments of this application, the range hood further includes a driving member, which is provided with a driving end connected to the oil scraping device, and the driving member is adapted to drive the oil scraping device to move along the bottom surface of the baffle.

[0012] According to some embodiments of this application, the range hood further includes: an outer air box, a smoke exhaust fan is provided in the cavity of the outer air box, the cavity of the outer air box is connected to the air intake cavity, and the top plate of the housing has portions located on both sides of the outer air box, the portions of which are aligned with the air intake are blocked by baffles.

[0013] According to some embodiments of this application, the range hood further includes an oil baffle plate, which is disposed inside the housing and located at the bottom of the exhaust fan.

[0014] According to some embodiments of this application, an oil guide notch is formed on the edge of the oil baffle, and an oil guide groove communicating with the oil collection area is formed on the housing. The projection of the oil guide notch toward the bottom of the housing at least covers the oil guide groove.

[0015] Additional aspects and advantages of this 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

[0016] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:

[0017] Figure 1This is a schematic diagram of the hidden housing top plate structure of the range hood according to an embodiment of this application;

[0018] Figure 2 This is a schematic diagram of a range hood from an upward angle according to an embodiment of this application;

[0019] Figure 3 This is a structural schematic diagram of the hidden top plate of the casing in a range hood according to an embodiment of this application;

[0020] Figure 4 yes Figure 3 The middle circle shows a magnified view of part A.

[0021] Figure label:

[0022] Range hood 1;

[0023] Housing 11, suction chamber 1110, suction port 112, first section 1121, second section 1122, oil guide groove 1123.

[0024] External air box 113, smoke exhaust fan 1131, oil baffle 1132, oil guide notch 1133.

[0025] Baffle 12, oil-blocking wall 121, heating wall 122, oil-blocking edge 123

[0026] Connecting part 13, connecting arm 131, weight reduction hole 132,

[0027] Heating device 101, heating tube 102. Detailed Implementation

[0028] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain this utility model, and should not be construed as limiting this utility model.

[0029] The following is for reference. Figures 1-4 Description of a range hood 1 according to an embodiment of the present utility model.

[0030] According to this application, the range hood 1 includes a housing 11, a baffle 12, and a heating device 101. A suction chamber 1110 is formed inside the housing 11, and a suction port 112 communicating with the suction chamber 1110 is formed at the bottom of the housing 11. The baffle 12 is housed inside the suction chamber 1110 and is disposed above the suction port 112. The projection of the baffle 12 onto the bottom of the housing 11 covers at least the portion of the suction port 112 that is directly opposite the top plate of the housing 11. The heating device 101 is disposed inside the suction chamber 1110 and is used to heat the baffle 12.

[0031] This application incorporates a baffle 12, housed within the suction chamber 1110, positioned above and spaced a certain distance from the suction port 112. This ensures that the projection of the baffle 12 onto the bottom of the housing 11 at least covers the portion of the housing 11 directly opposite the top plate of the housing 11. This allows the baffle 12 to shield the portion of the housing 11's top plate directly opposite the suction port 112, preventing grease buildup on the lower surface of the housing 11's top plate. However, during use, the bottom surface of the baffle 12 may accumulate stubborn grease over time, posing a risk of oil droplets dripping down from the suction port 112 and impacting the user experience.

[0032] The range hood 1 of this application is equipped with a heating device 101, which is located in the air suction chamber 1110 and is used to heat the baffle 12. By heating the baffle 12, the oil at the bottom of the baffle 12 is prevented from solidifying and forming grease, and the lower surface of the baffle 12 is not allowed to accumulate grease due to long-term use, thereby reducing the risk of oil dripping from the baffle 12.

[0033] The heating device 101 of this application can be synchronized with the start-up time of the range hood 1, so that the baffle 12 maintains a certain temperature during the continuous intake of oil fumes through the air inlet 112, thereby preventing oil stains from solidifying on the baffle 12. The heating device 101 can also select to heat the baffle 12 within a predetermined time, for example, after the range hood 1 has finished working, thereby melting the oil stains on the baffle 12, so that the melted oil can flow along the bottom wall of the baffle 12, preventing the oil from solidifying in the area directly opposite the baffle 12 and the air inlet 112, thereby preventing the formation of solidified oil stains in the area directly opposite the baffle 12 and preventing oil from dripping from the baffle 12.

[0034] In other embodiments, the heating device 101 can also be used to clean the inside of the baffle 12 or the housing 11. When it is necessary to clean the inside of the suction chamber 1110, the heating device 101 can raise the temperature to heat the baffle 12 and the area around the baffle 12, thereby melting the oil and reducing the difficulty of cleaning oil fumes and improving cleaning efficiency.

[0035] According to the range hood 1 of this application, by providing a heating device 101 on the baffle 12, grease buildup on the bottom wall of the baffle 12 is reduced, avoiding the risk of oil dripping from the bottom of the baffle 12. The heating device 101 effectively improves the overall cleanliness and ease of use of the range hood 1, further optimizing the user experience. Compared to traditional range hoods that require periodic disassembly and cleaning, the heating device 101 in this application continuously or intermittently heats the baffle 12, softening or even liquefying the oil before it solidifies. This allows the oil to flow smoothly along the surface of the baffle 12 to a specific collection point, effectively reducing the solidification and adhesion of grease and preventing oil dripping onto the cooking platform.

[0036] In some embodiments of this application, the baffle 12 has an oil-blocking wall 121 and a heating wall 122 formed on both sides in the thickness direction. The oil-blocking wall 121 is located on the side of the baffle 12 closer to the air intake 112, and the heating wall 122 is located on the side of the baffle 12 away from the air intake 112. The heating device 101 is disposed on the heating wall 122.

[0037] In this application, the baffle 12 has two surfaces in the thickness direction, namely an oil-blocking wall 121 and a heating wall 122. The oil-blocking wall 121 is directly opposite to the air intake 112. When the oil fumes enter the air intake 112, they first come into contact with the oil-blocking wall 121. The oil-blocking wall 121 is prone to accumulating grease. By placing the heating device 101 on the heating wall 122, the heating device 101 can be prevented from directly contacting the oil fumes, thus avoiding the accumulation of grease on the surface of the heating device 101, extending the cleaning cycle of the heating device 101, and reducing the difficulty of cleaning the heating device 101.

[0038] The baffle 12 is constructed to have a certain thickness and is located in a direction parallel to or nearly parallel to the bottom plate of the housing 11. The thickness or shape of the baffle 12 can affect the structural form of the oil-blocking wall 121 and the heating wall 122. The baffle 12 can also be constructed as a thin plate, with the oil-blocking wall 121 and the heating wall 122 on both sides in the thickness direction; the baffle 12 can also be constructed as a thick plate with a thickness variation in the extension direction, for example, the heating wall 122 is parallel to the floor of the housing 11 while the oil-blocking wall 121 is inclined relative to the bottom plate of the housing 11.

[0039] In one embodiment of this application, the suction chamber 1110 forms an oil collection area, and the oil-blocking wall 121 is inclined from high to low in the direction toward the oil collection area. The inclined wall surface of the oil-blocking wall 121 facilitates the flow of oil formed after the condensation of oil fumes along the oil-blocking wall 121, and the inclined arrangement of the oil-blocking wall 121 toward the oil collection area allows the oil to collect in the oil collection area, thereby better collecting the fumes.

[0040] In some embodiments of this application, the oil collection area may be located near the edge of the housing 11, and an oil collection cup for collecting oil may be provided at the bottom of the oil collection area.

[0041] In some embodiments of this application, the range hood 1 further includes a connecting portion 13, which is disposed on the edge of the baffle 12 and connects the baffle 12 to the housing 11. A weight-reducing hole 132 is formed on the connecting portion 13. To fix the baffle 12 to a relatively stable position within the suction chamber 1110, the connecting portion 13 is used to connect the baffle 12 to the housing 11, thereby improving the stability of the baffle 12 relative to the housing 11. The weight-reducing hole 132 on the connecting portion 13 can reduce its own weight, increase the supporting force of the connecting portion 13 on the baffle 12, and at the same time, the weight-reducing hole 132 can allow flue gas to flow, thereby reducing obstruction to the flue gas and improving the suction efficiency of the range hood 1.

[0042] In one embodiment of this application, the connecting portion 13 includes a plurality of connecting arms 131. One end of each connecting arm 131 is connected to the edge of the baffle 12, and the other end of each connecting arm 131 is connected to the housing 11. The other end of the connecting arm 131 can be directly connected to the inner wall of the suction chamber 1110, or the other end of the connecting arm 131 can be fixed to the housing 11 by fasteners on the outside of the housing 11. A weight-reducing hole 132 is formed between two adjacent connecting arms 131.

[0043] In some embodiments of this application, the cross-section of the connecting arm 131 includes at least two intersecting support plates to further improve the structural strength of the connecting arm 131. The cross-section of the connecting arm 131 may include a bottom support plate and a side support plate. The side support plate is disposed at one end or the middle of the bottom support plate. The side support plate and the bottom support plate are orthogonal to each other to improve the structural strength of the connecting arm 131.

[0044] In some embodiments of this application, the range hood 1 further includes an oil scraping device disposed inside the air intake chamber 1110. The oil scraping device has an oil scraping element that contacts the bottom surface of the baffle 12. The oil scraping device can move within the air intake chamber 1110 to scrape the bottom surface of the baffle 12 by the oil scraping element.

[0045] By providing a movable oil scraping device at the bottom of the baffle 12, the bottom of the baffle 12 can be cleaned to prevent the accumulation of grease and avoid oil dripping onto the cooking countertop. In this embodiment, the oil scraping device includes an oil scraping component that contacts the baffle 12. While maintaining contact with the bottom surface of the baffle 12, the oil scraping component moves to scrape away grease from the bottom of the baffle 12, preventing grease buildup and thus avoiding oil dripping.

[0046] The oil scraping device can be mounted on the baffle 12 to maintain stable contact between the oil scraping device and the baffle 12, ensuring the oil scraping effect. Of course, in other embodiments, the movement of the oil scraping device may not depend on the baffle 12; the oil scraping device can move relative to the housing 11 or be mounted on other components fixed relative to the housing 11. It should be understood that the form of movement of the oil scraping device relative to the housing 11 is not a limitation on the oil scraping device in this application.

[0047] According to the range hood 1 of this application, a baffle 12 is provided inside the suction chamber 1110 to prevent grease from adhering to the top plate of the housing 11. Simultaneously, an oil scraping device is provided to scrape away grease from the bottom of the baffle 12, preventing grease buildup at the bottom of the baffle 12. During use, the range hood 1 of this application prevents grease buildup inside the housing 11 and reduces grease buildup on the outer surface, maintaining cleanliness for a longer period. Grease does not easily accumulate at the bottom of the baffle 12, and oil does not drip from the suction port 112.

[0048] According to some embodiments of this application, an oil-scraping device has an oil storage cavity inside, and an oil collection port is provided in the oil storage cavity, which is open to the top. The oil collection port is located on one side of the oil scraper in the direction of movement of the oil scraper. In this embodiment, by forming an oil storage cavity inside the oil scraper and providing an oil collection port at the top of the oil storage cavity, the oil scraper collects oil in the oil storage cavity during the oil scraping process, preventing oil from dripping down during the scraping of oil from the bottom of the baffle 12, thus keeping the cooking countertop clean. The oil collection port of the oil scraper is located on one side in the direction of movement of the oil scraper, which can be understood as the oil flowing along the oil scraper towards the oil collection port and being collected in the oil storage cavity during the contact between the oil scraper and the bottom surface of the baffle 12.

[0049] In some embodiments, the oil scraper can be configured as a strip to increase the oil scraping area, and the oil collection port is correspondingly configured as a strip-shaped hole extending in the width direction of the oil scraper.

[0050] In some embodiments, the oil scraping device can scrape oil in a unidirectional direction and reset during reverse movement. In this embodiment, the oil collection port and the oil scraping component are configured as one or more corresponding components. In other embodiments, the oil scraping device can scrape oil in a bidirectional direction, and the oil collection port can be located on both sides of the oil scraping component to ensure that the oil scraping device can collect oil during bidirectional movement and prevent oil dripping.

[0051] The oil scraper can be constructed as a flexible scraper. When the flexible scraper contacts the bottom of the baffle 12, it can scrape off the oil stains at the bottom of the baffle 12, and the scraping efficiency is high.

[0052] According to some embodiments of this application, the oil scraping device includes an oil storage shell, which is movably disposed at the bottom of the baffle 12. An oil storage cavity is defined inside the oil storage shell, and an oil collection port extending in the width direction of the baffle 12 is formed at the top of the oil storage shell. An oil scraper is disposed at the top of the oil storage shell, and the oil scraper extends from at least a portion of the edge of the oil collection port toward the baffle 12 and abuts against the baffle 12.

[0053] The oil storage shell serves as the main structure of the oil scraping device. The oil storage chamber formed inside is used to collect oil. The oil scraping component is located on the top of the oil storage shell and can move stably with the oil storage shell to ensure the stability of the oil scraping process. The oil scraping component is located at least part of the edge of the oil collection port to ensure that the scraped oil flows along the surface of the oil scraping component to the oil collection port and is collected in the oil storage chamber.

[0054] According to some embodiments of this application, the oil storage shell is constructed as a cylindrical shell 11 extending in the width direction of the baffle 12, with one end of the oil storage shell open toward the side wall of the suction chamber 1110 to facilitate the discharge of oil collected in the oil storage chamber.

[0055] In some embodiments, the oil collection area is located on one side of the housing 11, and the opening direction of the oil storage housing can be towards the oil collection area, so as to guide the collected oil to the oil collection area.

[0056] According to some embodiments of this application, the range hood 1 further includes a driving component, which has a driving end connected to the oil scraping device. The driving component is adapted to drive the oil scraping device to move along the bottom surface of the baffle 12. The driving component can be a mechanism capable of outputting power, such as a motor, cylinder, or air pump. The driving end can output power or move directly under the action of the driving component. The driving end is connected to the oil scraping device, thereby driving the oil scraping device to move and scraping off the oil stains on the bottom surface of the baffle 12. The driving component can also be a component for transmitting power, without its own driving capability. The driving end of the driving component is used for movement, and the driving component can move under the action of an external power source to drive the oil scraping device to move.

[0057] By setting a driving component, the oil scraping device can be driven to perform oil scraping operations, providing power for the movement of the oil scraping device. The driving component can be powered by its own power source or can utilize an external power source from the range hood 1.

[0058] In some embodiments, the driving member and the heating device 101 can be linked. After the heating time of the heating device 101 reaches a predetermined time, the driving member will further act to match the timing of the driving member driving the oil scraping device to scrape oil with the heating device 101, thereby further improving the oil scraping efficiency.

[0059] In some embodiments of this application, the range hood 1 further includes an external air box 113, the cavity of which is connected to the suction chamber 1110. An exhaust fan 1131 is installed inside the cavity of the external air box 113. The top plate of the housing 11 has portions located on both sides of the external air box 113, and these portions, which are aligned with the suction port 112, are blocked by a baffle 12. The exhaust fan 1131 inside the external air box 113 provides power for the suction airflow. Simultaneously, the external air box 113 can be connected to a common flue to exhaust fumes into the common flue.

[0060] In some embodiments, the air intake 112 includes a first segment 1121 and a second segment 1122. The first segment 1121 is formed in the middle of the air intake housing 11 and is correspondingly disposed with the outer air box 113 in the width direction. The second segment 1122 is formed at the bottom of the air intake housing 11 and is connected to at least one end of the first segment 1121 in the width direction. The baffle 12 at least covers the second segment 1122.

[0061] In some embodiments of this application, the oil baffle 1132 is disposed inside the housing 11 and located at the bottom of the exhaust fan 1131. During the operation of the range hood 1, the exhaust fan 1131 continuously rotates at high speed, drawing oil fumes from the air intake 112 into the air intake chamber 1110, then guiding them into the outer air box 113, and finally discharging them through the connected common flue. However, since the oil fumes contain a large number of condensable components, such as oil mist, fine particles, and water vapor, these substances are easily condensed and adhered upon cooling on the fan impeller, housing 11, or inner wall of the air intake chamber 1110. The condensed oil stains continuously accumulate and, under the action of gravity, are very likely to drip from the bottom of the fan or the gaps in the fan structure, causing secondary pollution inside the range hood 1, and even contaminating the cooking area.

[0062] This application provides an oil baffle 1132 at the bottom of the fan, which acts as a barrier to block oil and effectively catches oil dripping from the outer fan box 113. The oil baffle 1132 can be designed as an arc, a flat surface, or a sloped structure to guide the caught oil.

[0063] The oil baffle 1132 and the air intake 112 are staggered to avoid affecting the airflow. By directly blocking the bottom area of ​​the fan, the condensed oil cannot drip directly onto the bottom wall of the air intake chamber 1110. At the same time, some oil baffles 1132 can also be equipped with small oil collection troughs or drain holes, so that the condensed oil can be collected and guided to the oil collection cup for discharge. This ensures the smoke extraction efficiency of the fan, effectively extends the internal cleaning cycle of the range hood 1 and reduces maintenance costs.

[0064] In some embodiments of this application, an oil guide notch 1133 is formed on the edge of the oil baffle 1132, and an oil guide groove 1123 communicating with the oil collection area is formed on the housing 11. The projection of the oil guide notch 1133 toward the bottom of the housing 11 at least covers the oil guide groove 1123. In order to further improve the collection and discharge efficiency of oil, an oil guide notch 1133 is formed on the edge of the oil baffle 1132. The oil guide notch 1133 is used to guide the oil accumulated on the surface or edge of the oil baffle 1132 to flow in a predetermined direction. At the same time, the housing 11 is provided with an oil guide groove 1123 communicating with the oil collection area to receive the oil guided by the oil guide notch 1133 and finally transport it to an oil collection box or oil cup or other oil collection device.

[0065] An oil guiding notch 1133 can be provided at the side edge of the oil baffle 1132. The oil baffle 1132 has a polygonal structure, and the oil guiding notch 1133 can be provided at a corner of the oil baffle 1132. The position of the oil guiding notch 1133 is designed such that its projected area towards the bottom of the housing 11 at least covers the position of the oil guiding groove 1123. This alignment design ensures that when oil stains slide down to the edge of the oil baffle 1132 due to gravity, they can accurately enter the oil guiding groove 1123 on the housing 11 through the oil guiding notch 1133, thereby preventing oil stains from overflowing or dripping onto non-oil collecting areas at the edge of the baffle 12, and reducing the risk of secondary pollution inside the range hood 1 or on the surface of the cooktop.

[0066] In addition, the oil guide groove 1123 structure of this application facilitates cleaning and maintenance. Users can quickly unclog the oil passage by cleaning the edge of the oil baffle 1132 or the opening of the oil guide groove 1123 to avoid oil blockage and maintain the long-term stable operation of the system.

[0067] In some embodiments, the oil guide notch 1133 can be constructed as a semi-circular, V-shaped or trapezoidal cut, and can also be provided with a slightly inclined flow guide structure, which, together with the slightly inclined arrangement of the oil baffle plate 1132 body, guides the oil sludge to quickly accumulate and be discharged in a directional manner.

[0068] In some embodiments, oil-blocking edges 123 are provided on both sides of the baffle 12 to define and restrict the edge of the heating device 101, and at the same time prevent oil from flowing through the edge of the baffle 12, thus ensuring the flow direction of the oil.

[0069] In some embodiments, the heating device 101 may include a plurality of heating tubes 102, each of which is constructed as multiple segments. These segments are sequentially arranged on the surface of the heating wall, with at least two adjacent heating tubes 102 connected to each other. The extending direction of each heating tube 102 is the same as the inclination direction of the oil-blocking wall. This allows oil adhering to the surface of the heating tubes 102 to flow along the inclination direction of the heating tubes 102, preventing the oil from solidifying on the surface of the heating tubes 102.

[0070] In the description of this utility model, it should be understood that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship are based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this utility model and simplifying the description, and are not intended to indicate or imply that the device or element 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 of this utility model.

[0071] In the description of this utility model, "first feature" and "second feature" may include one or more of the features.

[0072] In the description of this utility model, "multiple" means two or more.

[0073] In the description of this utility model, the first feature being "above" or "below" the second feature may include the first and second features being in direct contact, or it may include the first and second features not being in direct contact but being in contact through another feature between them.

[0074] In the description of this utility model, the terms "above", "over" and "on top" for the first feature and the second feature include the first feature being directly above or diagonally above the second feature, or simply indicate that the first feature is at a higher horizontal level than the second feature.

[0075] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is 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.

[0076] Although embodiments of the present invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A range hood, characterized in that, include: A housing (11) has an air suction chamber (1110) formed inside the housing (11), and an air suction port (112) communicating with the air suction chamber (1110) is formed at the bottom of the housing (11); A baffle (12) is housed in the air intake cavity (1110). The baffle (12) is disposed above the air intake (112). The projection of the baffle (12) onto the bottom of the housing (11) at least covers the portion of the air intake (112) that is aligned with the top plate of the housing (11). A heating device (101) is disposed in the air suction chamber (1110) and is used to heat the baffle (12).

2. The range hood according to claim 1, characterized in that, The baffle (12) has an oil-blocking wall (121) and a heating wall (122) formed on both sides in the thickness direction. The oil-blocking wall (121) is located on the side of the baffle (12) closer to the air intake (112), and the heating wall (122) is located on the side of the baffle (12) away from the air intake (112). The heating device (101) is disposed on the heating wall (122).

3. The range hood according to claim 2, characterized in that, The suction chamber (1110) has an oil collection area, and the oil baffle wall (121) is inclined from high to low in the direction toward the oil collection area.

4. The range hood according to claim 3, characterized in that, Also includes: A connecting part is provided on the edge of the baffle and connects the baffle to the housing. A weight-reducing hole is formed on the connecting part.

5. The range hood according to any one of claims 1-4, characterized in that, Also includes: An oil scraping device is disposed inside the air suction chamber (1110). The oil scraping device has an oil scraping element that contacts the bottom surface of the baffle (12). The oil scraping device is movable within the air suction chamber (1110) to scrape the bottom surface of the baffle (12) by the oil scraping element.

6. The range hood according to claim 5, characterized in that, The oil scraping device has an oil storage chamber inside, and the oil storage chamber is open to the top and has an oil collection port. The oil collection port is located on one side of the oil scraping element in the direction of movement of the oil scraping device.

7. The range hood according to claim 6, characterized in that, Also includes: A driving component is provided with a driving end connected to the oil scraping device, and the driving component is adapted to drive the oil scraping device to move along the bottom surface of the baffle (12).

8. The range hood according to any one of claims 1-6, characterized in that, Also includes: An external air box (113) is provided with a smoke exhaust fan (1131) inside its cavity. The cavity of the external air box (113) is connected to the air intake cavity (1110). The top plate of the housing (11) has a portion located on both sides of the external air box (113). The portion of this portion that is aligned with the air intake (112) is blocked by a baffle (12).

9. The range hood according to claim 8, characterized in that, Also includes: An oil baffle (1132) is disposed inside the housing (11) and located at the bottom of the exhaust fan (1131).

10. The range hood according to claim 9, characterized in that, The edge of the oil baffle (1132) is formed with an oil guiding notch (1133), and an oil guiding groove (1123) communicating with the oil collection area is formed on the housing (11). The projection of the oil guiding notch (1133) toward the bottom of the housing (11) at least covers the oil guiding groove (1123).

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