Range hood

Abstract

The utility model discloses a range hood which comprises an exhaust fume collecting hood, an exhaust fume collecting device and a range hood cover, the exhaust fume collecting hood comprises a front panel and a back panel which are arranged front and back at an interval, an opening is formed in the front panel, and an oil fume channel communicated with fluid of the opening is formed in the exhaust fume collecting hood; the smoke baffle assembly comprises a smoke baffle rotationally connected with the smoke collecting hood; the smoke barrier comprises a first plate body and a second plate body which are arranged in an L shape; the range hood at least can be in the following two states: in the first state, the first plate body extends upwards from the position close to the upper edge of the opening, and the second plate body extends from the opening to the interior of the exhaust fume collecting hood to the back plate, so that the oil fume channel is closed; in the second state, the first plate body extends from the opening to the direction far away from the exhaust fume collecting hood, the part, located below the first plate body, of the opening forms a fume inlet, and the second plate body extends upwards from the position close to the upper edge of the opening, so that the oil fume channel is opened.

Description

Technical Field

[0001] This utility model relates to an oil fume purification device, and more particularly to an oil fume extractor. Background Technology

[0002] Range hoods have become an indispensable kitchen appliance in modern homes. They operate on the principles of fluid dynamics, using a centrifugal fan inside to draw in and exhaust cooking fumes, and a filter to remove some of the grease particles.

[0003] In the prior art, low-suction range hoods typically have a baffle plate above the air inlet to increase the negative pressure area. For example, Chinese Patent Application No. 202323215899.2 discloses a range hood that includes a smoke collection hood and a flap. The smoke collection hood includes a rear cover and a front cover. The front cover has a smoke inlet, and the upper end of the flap is hinged to the front cover for closing and opening the smoke inlet.

[0004] However, in the existing range hoods, when the range hood is working, the free end of the baffle (flip plate) opens from bottom to top. Because the baffle of the low-suction range hood is positioned low, it is easy to cause pots to burn and obstruct the view.

[0005] Therefore, further improvements are needed. Utility Model Content

[0006] The technical problem to be solved by this utility model is to provide a range hood that addresses the shortcomings of the existing technology, ensuring that the smoke baffle opens normally and does not obstruct the view during cooking.

[0007] The technical solution adopted by this utility model to solve the above-mentioned technical problems is: a range hood, comprising:

[0008] A fume hood includes a front panel and a back panel arranged at intervals, the front panel having an opening, and an oil fume channel forming within the fume hood in fluid communication with the opening; and

[0009] A smoke baffle assembly, comprising a smoke baffle rotatably connected to a smoke collection hood; characterized in that:

[0010] The smoke baffle includes a first plate and a second plate arranged in an L-shape;

[0011] The range hood can be in at least two of the following states:

[0012] First state: The first plate extends upward from the position near the upper edge of the opening, and the second plate extends from the opening into the back plate of the fume hood, thereby closing the fume duct;

[0013] Second state: The first plate extends from the opening away from the smoke hood, and the part of the opening below the first plate forms a smoke inlet. The second plate extends upward from the position near the upper edge of the opening, thereby opening the fume duct.

[0014] By setting an L-shaped smoke baffle, when the smoke baffle changes from the closed first state to the open second state, the first plate flips down from top to bottom, and when the smoke baffle changes from the open second state to the closed first state, the first plate flips up from bottom to top. This can prevent the smoke baffle from hitting the pot when it flips, while ensuring a sufficiently low smoke collection position. For the same width of smoke baffle, it will have less obstruction to the user's line of sight, so as not to block the user's view while cooking.

[0015] Preferably, when the range hood is in the first state, the first plate is vertical and the second plate is horizontal; when the range hood is in the second state, the first plate is horizontal and the second plate is vertical.

[0016] To facilitate the rotatable connection between the smoke baffle and the smoke collection hood, and to facilitate the movement of the smoke baffle, the smoke baffle assembly also includes a rotating shaft. The left and right sides of the first plate are respectively rotatably connected to the smoke collection hood through the rotating shaft, and the rotating shaft is located on the first plate near the second plate.

[0017] Preferably, the first plate and the second plate are connected and fixed to each other to form a whole, or the first plate and the second plate are integrally formed structures.

[0018] Furthermore, the front panel has a recessed area located above the upper edge of the opening. This recessed area is formed by a corresponding portion of the front panel being recessed rearward. When the range hood is in the first state, the first plate is placed within the recessed area, with the bottom of the first plate lower than the bottom of the recessed area. When the range hood is in the second state, the second plate is pressed against the rear surface of the recessed area. This facilitates sealing of the fume duct when closed, prevents pressure loss in the fume duct when open, and avoids interference with the movement of the baffle plate.

[0019] Preferably, when the range hood is in the first state, the front surface of the first plate is flush with the front panel except for the recessed area.

[0020] To facilitate the driving of the smoke baffle, the range hood also includes a motion mechanism for driving the smoke baffle to rotate. The motion mechanism is an electric push rod, which is rotatably installed inside the smoke collection hood. The output end of the motion mechanism is rotatably connected to the second plate of the smoke baffle.

[0021] Compared with the prior art, the advantage of this utility model is that by setting an L-shaped smoke baffle, when the smoke baffle changes from the closed first state to the open second state, the first plate flips down from top to bottom, and when the smoke baffle changes from the open second state to the closed first state, the first plate flips up from bottom to top. This can prevent the smoke baffle from hitting the pot when it flips, while ensuring a sufficiently low smoke collection position. For the same width of smoke baffle, it will have less obstruction to the user's line of sight, thus avoiding obstructing the user's view during cooking. Attached Figure Description

[0022] Figure 1 This is a schematic diagram of a range hood according to an embodiment of the present invention (in the off state);

[0023] Figure 2 This is a cross-sectional view (closed state) of the range hood according to an embodiment of the present utility model;

[0024] Figure 3 This is an exploded structural diagram of the range hood according to an embodiment of the present utility model;

[0025] Figure 4 This is a schematic diagram of the smoke baffle assembly of the range hood according to an embodiment of the present utility model;

[0026] Figure 5 This is a schematic diagram of a range hood according to an embodiment of the present utility model (open state);

[0027] Figure 6 This is a cross-sectional view (closed state) of a range hood according to an embodiment of the present invention. Detailed Implementation

[0028] The embodiments of the present invention are described in detail below. Examples of the 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.

[0029] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention 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. Since the embodiments disclosed in this invention can be arranged in different directions, these terms indicating direction are only for illustration and should not be regarded as limitations. For example, "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity. In addition, features defined with "first" and "second" may explicitly or implicitly include one or more of such features.

[0030] See Figures 1-6 A range hood, specifically a low-suction type, includes a smoke collection hood 1 and a smoke baffle assembly 2. The smoke collection hood 1 includes a front panel 11, a back panel 12, side panels 13, a top panel 14, and a bottom panel 15. The front panel 11 and the back panel 12 are arranged at an interval, with the front panel 11 closer to the user and the back panel 12 closer to the wall where the range hood is installed in its normal installation state. There are two side panels 13, one located between the left ends of the front panel 11 and the back panel 12, and the other located between the right ends of the front panel 11 and the back panel 12. The top panel 14 is located between the upper ends of the front panel 11, the back panel 12, and the side panels 13, and the bottom panel 15 is located between the lower ends of the front panel 11, the back panel 12, and the side panels 13.

[0031] An opening 16 is provided on the front panel 11, and the opening 16 is closer to the bottom of the front panel 11 to form a low-suction range hood. An oil fume channel 17 is formed inside the smoke collection hood 1, and the opening 16 is in fluid communication with the oil fume channel 17.

[0032] The smoke baffle assembly 2 includes a smoke baffle 21 and a rotating shaft 22. The smoke baffle 21 includes a first plate 211 and a second plate 212, which are integrally formed. They can be independent plates connected and fixed together, or they can be a single-piece structure. In this embodiment, it is preferred that the first plate 211 and the second plate 212 are a single-piece structure. The first plate 211 and the second plate 212 are perpendicular to each other and form an L-shape. That is, when the smoke baffle 21 is installed on the smoke collection hood 1, in the installed state, the smoke baffle 21 is L-shaped in the vertical cross-section along the front and rear directions.

[0033] The left and right sides of the first plate 211, near the position of the second plate 212, are respectively rotatably connected to the smoke hood 1 through the rotating shaft 22, so that the smoke baffle 21 is rotatably connected to the smoke hood 1, and the rotation axis of the smoke baffle 21 extends in the left and right direction.

[0034] A range hood can be in at least two of the following states, see below. Figure 1 and Figure 2 In the first state (closed state), the first plate 211 is vertical, extending upwards from near the upper edge of the opening 16, and the second plate 212 is horizontal, extending from the opening 16 into the back panel 12, thereby closing the fume duct 17. Here, "fume duct 17 closed" means that the portion of the fume duct 17 above the second plate 212 is no longer connected to the opening 16. (See also...) Figure 5 and Figure 6 In the second state (open state), the smoke baffle 21 is rotated 90° relative to the closed state (from the open state). Figure 2 (The state shown is rotated clockwise). The first plate 211 is horizontal and extends from the opening 16 away from the smoke hood 1 (i.e., extends forward). At this time, the part of the opening 16 located below the first plate 211 constitutes the smoke inlet. The second plate 212 is vertical and extends upward from the position near the upper edge of the opening 16, thereby opening the fume duct 17. Here, "opening the fume duct 17" means that all parts of the fume duct 17 are in fluid communication with the opening 16.

[0035] The range hood also includes a motion mechanism 3, which can be an electric push rod rotatably mounted inside the smoke collection hood 1, and whose output end is rotatably connected to the side of the smoke baffle 21, especially the second plate 212. This structure is simple, and setting a reasonable push rod stroke can ensure that the smoke baffle 21 can rotate 90°.

[0036] As described above, by setting an L-shaped smoke baffle 21 and the way the smoke baffle 21 is flipped (the first plate 211 flips from top to bottom), the problem of pots hitting the pot can be avoided when the smoke baffle 21 is flipped, while ensuring a sufficiently low smoke collection position. For the same width (dimension in the front-to-back direction), the smoke baffle will obstruct the user's line of sight less.

[0037] The front panel 11 has a recessed area 111 located above the upper edge of the opening 16. The recessed area 111 is formed by a rearward indentation of a corresponding portion of the front panel 11. The shape and size of the recessed area 111 correspond to the first plate 211 of the smoke baffle 21. When the range hood is closed, the first plate 211 is placed inside the recessed area 111, so that the front surface of the first plate 211 is flush with the front surface of the front panel 11 excluding the recessed area 111, and the bottom of the first plate 211 is lower than the bottom of the recessed area 111. This ensures the sealing of the portion of the fume duct 17 above the second plate 212, i.e., the left and right sides and the top are sealed by the recessed area 111, and the bottom is sealed by the smoke baffle 21, preventing backflow of fumes. When the range hood is open, the second plate 212 is pressed against the rear surface of the recessed area 111 to prevent pressure loss in the portion of the opening 16 above the first plate 211.

[0038] The recessed area 111 will not interfere with the movement of the smoke baffle 21.

[0039] The range hood also includes a fan system (not shown), which can be installed inside the fume hood 1 as shown in the background art documents, in which case the fan system must be higher than the first plate when closed. Alternatively, the fan system can be installed entirely above the fume hood 1. Regardless of the method, an opening (not shown) must be provided on the top plate 14 of the fume hood 1 to allow fumes to pass through.

[0040] The term "fluid connectivity" as used in this utility model refers to the spatial relationship between two components or parts (hereinafter referred to as the first part and the second part, respectively), that is, a fluid (gas, liquid, or a mixture of both) can flow from the first part along a flow path and / or be transported to the second part. This can be a direct connection between the first part and the second part, or an indirect connection between the first part and the second part through at least one third party. The third party can be a fluid channel such as a pipe, channel, conduit, guide, hole, or groove, or a chamber or combination thereof that allows fluid to flow through.

Claims

1. A range hood, comprising: A fume hood (1) includes a front panel (11) and a back panel (12) arranged at intervals, wherein an opening (16) is provided on the front panel (11), and an oil fume channel (17) in fluid communication with the opening (16) is formed inside the fume hood (1); and A smoke baffle assembly (2) comprising a smoke baffle (21) rotatably connected to a smoke collection hood (1); characterized in that: The smoke baffle (21) includes a first plate (211) and a second plate (212) arranged in an L-shape; The range hood can be in at least two of the following states: First state: The first plate (211) extends upward from the position near the upper edge of the opening (16), and the second plate (212) extends from the opening (16) into the back plate (12) of the fume hood (1), thereby closing the fume duct (17); Second state: The first plate (211) extends from the opening (16) in a direction away from the smoke hood (1), and the part of the opening (16) below the first plate (211) constitutes the smoke inlet. The second plate (212) extends upward from the position near the upper edge of the opening (16), thereby opening the oil fume channel (17).

2. The range hood according to claim 1, characterized in that: When the range hood is in the first state, the first plate (211) is vertical and the second plate (212) is horizontal; when the range hood is in the second state, the first plate (211) is horizontal and the second plate (212) is vertical.

3. The range hood according to claim 1, characterized in that: The smoke baffle assembly (2) also includes a rotating shaft (22). The left and right sides of the first plate (211) are rotatably connected to the smoke hood (1) via the rotating shaft (22). The rotating shaft (22) is located on the first plate (211) near the second plate (212).

4. The range hood according to any one of claims 1 to 3, characterized in that: The first plate (211) and the second plate (212) are connected and fixed to each other to form a whole, or the first plate (211) and the second plate (212) are integrally formed structures.

5. The range hood according to any one of claims 1 to 3, characterized in that: The front panel (11) has a recessed area (111) located above the upper edge of the opening (16). The recessed area (111) is formed by the rearward indentation of the corresponding part of the front panel (11). When the range hood is in the first state, the first plate (211) is placed in the recessed area (111), and the bottom of the first plate (211) is lower than the bottom of the recessed area (111). When the range hood is in the second state, the second plate (212) is attached to the rear surface of the recessed area (111).

6. The range hood according to claim 5, characterized in that: When the range hood is in the first state, the front surface of the first plate (211) is flush with the front panel of the front panel (11) except for the recessed area (111).

7. The range hood according to any one of claims 1 to 3, characterized in that: The range hood also includes a motion mechanism (3) for driving the smoke baffle (21) to rotate. The motion mechanism (3) is an electric push rod. The motion mechanism (3) is rotatably installed inside the smoke collection hood (1). The output end of the motion mechanism (3) is rotatably connected to the second plate (212) of the smoke baffle (21).

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