Side-suction range hood and operating method thereof

Abstract

The present invention provides a side-suction range hood and a working method thereof, wherein the range hood includes a smoke collecting chamber and a panel structure arranged at the front side of the smoke collecting chamber, wherein the panel structure includes an arc-shaped panel located at the bottom and an inclined panel located at the top, an oil filter screen is provided on the inclined panel, and a smoke baffle that can be opened and closed and is used to cover the outside of the inclined panel is hinged at the top front end of the smoke collecting chamber. The arc-shaped panel has a better smoke-following function, which facilitates the oil smoke to float upward along the arc surface, making it easier to be sucked away, which is beneficial to improving the exhaust speed and efficiency of the oil smoke and improving the oil smoke suction capacity; when the range hood is turned on, the smoke baffle is opened, and in the process of the oil smoke floating upward, the oil smoke located at the front side has a tendency to overflow. At this time, the overflowing oil smoke will be blocked by the smoke guide plate, forming a turbulence area. The oil smoke collides back and forth in this area and is eventually sucked away by the range hood, reducing the escape of the oil smoke and improving the oil smoke suction capacity.

Description

Technical Field

[0001] The present invention belongs to the technical field of range hoods, and in particular relates to a side-suction range hood and a working method of the range hood. Background Art

[0002] Range hoods have become an indispensable kitchen appliance in modern households. They typically come in two types: top-suction and side-suction. Top-suction range hoods utilize the principle of rising heat to extract naturally rising cooking fumes. Their compactness, lightness, and small footprint have led to their increasing popularity. However, their power source is located farther from the stovetop, reducing its extraction efficiency and preventing complete fumes removal. Side-suction range hoods utilize eddy currents to disperse fumes closer to the stovetop, absorbing them in an arc. This minimizes adverse health effects, and the proximity of the power source to the stovetop essentially minimizes any reduction in extraction efficiency.

[0003] Side-suction range hoods are installed against a wall, allowing oil smoke to enter the hood head-on and diagonally, preventing operators from passively inhaling oil smoke. Currently, side-suction range hoods typically have an inclined flat panel with an oil filter screen located in the center. Driven by a fan, oil smoke passes through the oil filter screen's holes, enters the smoke collection chamber, and is discharged outdoors. An openable smoke shield is located outside the oil filter screen to shield the oil filter screen. However, with existing side-suction range hoods, some oil smoke still escapes and is not drawn into the hood. Summary of the Invention

[0004] In view of the above problems existing in the prior art, the present invention provides a side-suction range hood to improve the oil fume suction capacity and reduce the escape of oil fume.

[0005] In order to achieve the above technical objectives, the present invention adopts the following technical solutions:

[0006] A side-suction range hood comprises a smoke collection chamber and a panel structure arranged on the front side of the smoke collection chamber, wherein the panel structure has a curved panel located at the bottom and an inclined panel located at the top, an oil filter screen is provided on the inclined panel, and an openable and closable smoke baffle for covering the outside of the inclined panel is hinged at the top front end of the smoke collection chamber.

[0007] Furthermore, when the smoke shield is in a closed state, the smoke shield is adjacent to the upper end portion of the curved panel.

[0008] Furthermore, the vertical cross-section of the curved panel is an arc. When the range hood is installed above the stove, the center of the arc of the curved panel is located on the plane where the top surface of the stove is located.

[0009] Furthermore, the distance from the center of the circle to the wall on which the range hood is installed is equal to the radius of the arc of the curved panel.

[0010] Furthermore, the smoke shield moves along an arc path during the opening and closing process, and the arc path, the extended arc line of the arc panel, and the smoke shield form a spoiler area.

[0011] Furthermore, the tangent direction at the upper end point of the curved panel is the same as the inclination direction of the smoke baffle in the closed state.

[0012] Furthermore, the smoke baffle is a flat plate.

[0013] Furthermore, a display component is provided on the smoke shield, and the inclined panel is concave to form a receiving groove for receiving the display component.

[0014] Furthermore, the panel structure also includes an inclined support panel located at the upper end; when the smoke shield is in a closed state, the smoke shield is attached to the outer side of the inclined support panel.

[0015] Furthermore, the angle between the inclined panel and the horizontal plane is greater than the angle between the inclined support plate surface and the horizontal plane.

[0016] Furthermore, a horizontal connecting plate is connected between the inclined supporting panel and the inclined panel.

[0017] Furthermore, a lower connecting portion is provided between the inclined panel and the curved panel, and the lower connecting portion is provided with a mating section connected to the curved panel, and a lower connecting section extending backward and downward along the mating section. When the smoke baffle is in the closed state, the smoke baffle is perpendicular to the mating section.

[0018] Furthermore, the oil filter screen plate is detachably fixed on the inclined panel at an angle, and the oil filter screen plate has a horizontally arranged upper end surface and an inclined lower end surface, and the lower end surface is arranged perpendicular to the inclined panel.

[0019] Furthermore, when the smoke baffle is in a closed state, the smoke baffle is tilted backward and downward, and an angle between the smoke baffle and the horizontal top plate of the smoke collecting chamber is 50° to 60°.

[0020] Furthermore, when the smoke baffle is in an open state, the smoke baffle is inclined forward and downward, and an angle between the smoke baffle and the horizontal top plate of the smoke collecting chamber is 95° to 100°.

[0021] Furthermore, a stove is provided on the cooktop, and a stove ring area for placing cooking utensils is provided on the stove; after the range hood is installed, the stove ring area is located behind the vertical plane where the front end of the smoke collecting chamber is located.

[0022] Furthermore, the size of the curved panel in the up-down direction is equal to or smaller than the size of the smoke shield in the up-down direction.

[0023] Furthermore, a driving device for pushing the smoke baffle to move is provided in the smoke collecting chamber. The driving device comprises a push rod and a driving lever. A through hole for the push rod to extend is provided on the inclined panel.

[0024] Furthermore, a lamp hole is opened on the upper portion of the inclined panel, and the through hole is located on one side of the lamp hole.

[0025] Furthermore, the driving device further comprises a first fixing seat fixed on the inner side of the top plate of the smoke collecting chamber, and the driving lever is hinged on the first fixing seat.

[0026] Furthermore, the driving device also includes a second fixing seat fixed on the inner side of the smoke baffle, and the push rod is hinged on the second fixing seat.

[0027] Furthermore, a reinforcing edge extending inward is provided on the edge of the via hole.

[0028] Furthermore, the via hole is a waist-shaped hole.

[0029] Furthermore, a mesh hole for installing the oil filter mesh plate is opened on the inclined panel, and an L-shaped installation frame extending inward is provided at the edge of the mesh hole, and the oil filter mesh plate is fixed on the installation frame.

[0030] Furthermore, the via holes are connected to the mesh plate holes, and an avoidance groove communicating with the via holes is provided on the mounting frame.

[0031] Based on the above-mentioned side-suction range hood, the present invention also provides a working method of the above-mentioned side-suction range hood, which improves the oil fume suction capability and reduces the escape of oil fume.

[0032] A method for operating the side-suction range hood includes the following steps:

[0033] A. Start the range hood, the smoke baffle rotates open, and the fan of the range hood turns on;

[0034] B. The oil smoke floats upward, and the oil smoke at the rear side will hit the curved panel with better smoke-conveying function, and this part of the oil smoke moves upward along the curved panel;

[0035] C. The oil smoke moving upward in step B and other oil smoke float upward and enter the turbulence zone under the action of negative pressure in the smoke collecting chamber;

[0036] D. The oil smoke in the turbulence area enters the smoke collecting chamber through the oil filter plate under the action of negative pressure and is discharged to the outside.

[0037] The side-suction range hood provided in the present invention has a panel structure including a curved panel at the bottom and an inclined panel at the top. The curved panel has a better smoke-following function, which facilitates the smoke to float upward along the curved surface, making it easier to suck away the smoke, which is beneficial to improving the smoke exhaust speed and efficiency, and improving the ability to absorb smoke. A smoke baffle that can be opened and closed is hinged at the top front end of the smoke collecting chamber to cover the outside of the inclined panel. When the range hood is turned on, the smoke baffle is opened. In the process of the smoke floating upward, the smoke located on the front side has a tendency to overflow. At this time, the overflowing smoke will be blocked by the smoke guide plate to form a turbulent area. The smoke collides back and forth in this area and is eventually sucked away by the range hood, reducing the escape of smoke and improving the ability to absorb smoke.

[0038] Other features and advantages of the present invention will become more apparent after reading the detailed description of the present invention in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 This is a structural schematic diagram of an embodiment of the side-suction range hood proposed by the present invention;

[0040] Figure 2 for Figure 1 Structural diagram of the middle side suction range hood;

[0041] Figure 3 for Figure 2 An enlarged structural diagram of the smoke collecting chamber of a mid-range hood;

[0042] Figure 4 for Figure 3 Schematic diagram of the enlarged structure of area A in the middle;

[0043] Figure 5 for Figure 3 Schematic diagram of the cross-section structure in ;

[0044] Figure 6 for Figure 5 A schematic diagram of the enlarged structure of the middle part;

[0045] Figure 7 for Figure 6 Schematic diagram of the enlarged structure of the middle B area;

[0046] Figure 8 for Figure 3 Main view of the middle panel structure;

[0047] Figure 9 for Figure 3 Schematic diagram of the structure after the middle smoke baffle is closed;

[0048] Figure 10 for Figure 9 Schematic diagram of the enlarged structure of the C area in the middle. DETAILED DESCRIPTION

[0049] To make the objectives, technical solutions and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention.

[0050] In the description of the present invention, it should be noted that the terms "inner," "upper," "lower," "left," and "right," etc., indicating directions or positional relationships, are based on the positional relationships shown in the accompanying drawings and are intended solely to facilitate and simplify the description of the present invention. They are not intended to indicate or imply that the devices or components referred to must have a specific orientation, be constructed, or operate in a specific orientation. Therefore, they should not be construed as limitations on 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.

[0051] See Figures 1-10 , is an embodiment of the side-suction range hood proposed in the present invention, a side-suction range hood 50 includes a main box body 1, a smoke collecting chamber 2 located below the main box body 1, and a panel structure 3 arranged on the front side of the smoke collecting chamber 2, the panel structure 3 has a curved panel 31 located at the lower part, and an inclined panel 32 located at the upper part, an oil filter plate 4 is provided on the inclined panel 32, and an openable and closable smoke shield 5 is hinged at the top front end of the smoke collecting chamber 2, and the smoke shield 5 is used to cover the outside of the inclined panel 32.

[0052] In this embodiment, the lower part of the panel structure 3 is set to be an arc-shaped panel 31, which has a better smoke-following function, facilitates the oil smoke to float upward along the arc surface, makes the oil smoke more easily sucked away, is beneficial to improve the exhaust speed and efficiency of the oil smoke, and improves the oil smoke suction capacity; at the top front end of the smoke collecting chamber 2, there is a hinged open and closeable smoke baffle 5 for covering the outside of the inclined panel 32. When the range hood is turned on, the smoke baffle 3 is opened. In the process of the oil smoke floating upward, the oil smoke on the front side has a tendency to overflow. At this time, the overflowing oil smoke will be blocked by the smoke guide plate 3 to form a turbulent flow area. The oil smoke collides back and forth in this area and is eventually sucked away by the range hood, reducing the escape of oil smoke and improving the oil smoke suction capacity.

[0053] In this embodiment, see Figure 2 and Figure 3As shown, the vertical cross-section of the curved panel 31 in the front-to-back direction is an arc, that is, a part of the cylindrical structure of the curved panel 31 in the left-to-right direction. When the range hood is installed above the stove 10, the center of the arc of the curved panel 31 is located on the plane where the top surface of the stove 10 is located. And the distance from the center of the circle to the range hood installation wall 40 is set to be equal to the radius of the arc of the curved panel 31; in this way, after the range hood is installed, the positional relationship between the circular ring where the curved panel 31 is located and the stove and the wall is guaranteed, which is conducive to ensuring the effective suction of oil smoke. The bionic ring is used to improve the oil smoke suction effect of the range hood. The inclined panel 32 is a flat plate that is tilted upward and forward. The inclined panel 32 is provided with a mesh hole for installing the oil filter mesh plate 4 and a lamp hole for installing the lamp; the lamp hole is located above the mesh hole.

[0054] In this embodiment, see Figure 9 As shown, the smoke baffle 5 has a closed state, covering the oil filter 4, and an open state. In the open state, the smoke baffle 5 blocks oil smoke, forming a negative pressure flow area between it and the inclined panel. In the closed state, it also blocks odors from the public flue and the interior of the range hood from entering the room. In the closed state, the smoke baffle 5 abuts the upper end of the curved panel 31. This allows upward-flowing oil smoke to reach the outside of the oil filter 4 after being guided by the curved panel 31, facilitating the inhalation of the oil smoke.

[0055] In this embodiment, see Figure 2 As shown, a stove 20 is provided on the stove top 10, and a stove ring area for placing cooking utensils 30 is provided on the stove 20; after the range hood 50 is installed, the stove ring area is located behind the vertical plane where the front end of the smoke collecting chamber 2 is located; so that almost all the oil smoke emitted by the cooking utensils can enter the smoke collecting chamber 2, which is beneficial to reduce the escape of oil smoke and further improve the oil smoke suction capacity.

[0056] In this embodiment, see Figure 2 and Figure 3 As shown, the smoke damper 5 is a hinged flat plate structure, and the vertical dimension of the curved panel 31 is equal to or smaller than the vertical dimension of the smoke damper 5; that is, the vertical dimension of the smoke damper 5 is equal to or greater than half of the vertical dimension of the panel structure, which means that the smoke damper 5 is larger and more effectively blocks escaping oil smoke. The smoke damper 5 is hinged at the top front end of the smoke collecting chamber 2. The smoke damper 5 moves along an arc path during opening and closing. The arc path, the extended arc of the curved panel 31, and the smoke damper 5 form a turbulence zone. Due to the large size of the smoke damper 5, the volume of the turbulence zone is larger. The arc path of the smoke damper 5 forms another bionic ring, which facilitates the entry of more oil smoke into the turbulence zone and reduces the escape of oil smoke.

[0057] In this embodiment, the tangent direction at the upper endpoint of the curved panel 31 is the same as the tilt direction of the smoke damper 5 when it is closed. As the smoke drifting upward along the curved panel 31 is directed, it enters the turbulence zone under the influence of inertia and negative pressure, and then enters the smoke collection chamber 2. When the smoke damper 5 is closed, it tilts backward and downward, and the angle between the smoke damper 5 and the horizontal top plate of the smoke collection chamber 2 is 50° to 60°. When the smoke damper 5 is open, it tilts forward and downward, and the angle between the smoke damper 5 and the horizontal top plate of the smoke collection chamber is 95° to 100°. In other words, after the smoke damper 5 opens to the vertical direction, it continues to open and rotate, which helps to increase the volume of the turbulence zone after the smoke damper 5 is opened, thereby reducing the escape of oil smoke.

[0058] In this embodiment, see Figure 3 As shown, the smoke baffle 5 is provided with a display component 6. The display component 6 is located on the inner side of the smoke baffle 5. An inclined panel 32 is provided, which is concave inward to form a receiving groove for accommodating the display component 6. That is, the inward concave shape of the inclined panel 32 facilitates accommodating the display component 6 and increases the volume of the spoiler zone. The panel structure 3 also includes an inclined support panel 33 at the upper end. When the smoke baffle 5 is closed, the smoke baffle 5 is attached to the outer side of the inclined support panel 33. That is, the inclination angle of the smoke baffle 5 in the closed state is the same as the inclination angle of the inclined support panel 33. The angle between the inclined panel 32 and the horizontal plane is greater than the angle between the inclined support panel surface 33 and the horizontal plane. When the smoke baffle 5 is open, oil smoke collides with the spoiler zone, which helps increase the volume of the spoiler zone above the mesh plate aperture. This deflects the oil smoke upon collision, and the negative pressure within the smoke collection chamber 2 radiates outward through the oil filter mesh plate 4, causing the oil smoke in the spoiler zone above the mesh plate aperture to move downward and be drawn into the smoke collection chamber 2.

[0059] In this embodiment, see Figure 4 、 Figure 6 、 Figure 10As shown, a horizontal connecting plate 34 is connected between the inclined support panel 33 and the inclined panel 32. A lower connecting portion 35 is provided between the inclined panel 32 and the curved panel 31. The lower connecting portion 35 comprises a mating section 351 that connects to the curved panel 31, and a lower connecting section 352 that extends rearward and downward along the mating section 351. When the smoke baffle 5 is closed, the smoke baffle 5 is perpendicular to the mating section 351. The lower connecting section 352 directly abuts the mesh opening. An L-shaped mounting frame 36 extending inward is provided at the edge of the mesh opening. The oil filter screen 4 is removably fixed to the mounting frame 36. The mounting frame 36 is a frame-shaped structure, and the lower connecting section 352 is connected to the lower edge of the mounting frame 36. By setting the lower connecting section 352 to be tilted backward and downward, the oil droplets condensed on the oil filter mesh plate 4 can move downward along the oil filter mesh plate 4 and accumulate in the groove surrounded by the lower end frame of the mounting frame 36 and the lower connecting section 352. The oil droplets drip downward from the groove into the smoke collecting chamber 2, specifically drip on the inner side of the curved panel 31, and finally flow into the oil cup. In this way, by setting the tilted lower connecting section 352, the oil droplets on the oil filter mesh plate 4 are prevented from dripping on the outer side of the panel structure 3, and it is beneficial to increase the appearance of the appearance.

[0060] In this embodiment, the oil filter screen plate 4 is detachably fixed at an angle in the screen plate hole on the inclined panel 32. The oil filter screen plate 4 has a horizontally arranged upper end surface 41 and an inclined lower end surface 42, wherein the lower end surface is arranged perpendicular to the inclined panel 32; this is conducive to the installation and disassembly operations of the oil filter screen plate 4 and improves the operating efficiency; a clamping plate 43 is provided at the lower end of the oil filter screen plate 4, and a clamping hole matching the clamping plate 43 is provided on the mounting frame 36, and the upper end of the oil filter screen plate 4 is fixed to the mounting frame 36 by screws.

[0061] In this embodiment, see Figure 9 As shown, a driving device 7 for driving the smoke damper 5 is provided within the smoke collecting chamber 2. The driving device 7 comprises a push rod 71 and a driving lever 72. A through hole 321 is provided on the inclined panel 32 for the push rod 71 to extend out. By configuring the driving device 7 as a structure of the push rod 71 and the driving lever 72, the force of the push rod 71 directly acts on the smoke damper 5, which helps ensure the closing and opening of the smoke damper 5 and facilitates the precision of the driving.

[0062] In this embodiment, see Figure 8 As shown, a lamp hole is defined in the upper portion of the inclined panel 32, with a through hole 321 located to one side of the lamp hole. The lamp board 8 is mounted and fixed within the lamp hole. By placing the through hole 321 adjacent to the lamp hole, the through hole 321 does not occupy the space already reserved for the mesh holes, thereby ensuring the area of ​​the oil filter mesh 4. Furthermore, the through hole is prevented from being placed on the oil filter mesh 4, which would make removal of the oil filter mesh 4 difficult and increase the accumulation of oil on the push rod 71.

[0063] In this embodiment, see Figure 7 and Figure 9 As shown, the drive device 7 also includes a first fixing seat 73 fixed to the inner side of the top plate of the smoke collecting chamber 2 and a second fixing seat 74 fixed to the inner side of the smoke baffle 5. The driving lever 72 is hingedly connected to the first fixing seat 73, and the push rod 71 is hingedly connected to the second fixing seat 74. As the push rod 71 pushes the smoke baffle 5 to open or close, the tilt direction of the push rod 71 constantly changes, which requires that the through hole 321 be designed as a waist-shaped hole with upper and lower elongations. Preferably, the edge of the through hole 321 is provided with an inwardly extending reinforcement edge 322 to increase the strength of the through hole 321.

[0064] In this embodiment, see Figure 10 As shown, the through hole 321 is connected to the mesh plate hole, and an avoidance groove 361 connected to the through hole 321 is provided in the mounting frame 36. This positions the through hole 321 as downward as possible, which helps to keep the angle between the push rod 71 and the smoke damper 5 near 90 degrees. That is, when the smoke damper 5 is closed, the angle between the push rod 71 and the lower end of the smoke damper 5 is less than 90 degrees. During the process of opening the smoke damper 5, the angle between the push rod 71 and the lower end of the smoke damper 5 gradually increases, and finally, when the smoke damper 5 reaches the open state, the angle between the push rod 71 and the lower end of the smoke damper 5 is greater than 90 degrees. In order to achieve the most labor-saving state for pushing the smoke damper 5, it is preferably set to be perpendicular to the smoke damper 5 when the smoke damper 5 is rotated to open at an angle half of its opening angle.

[0065] The operating method of the side-suction range hood 50 in this embodiment includes the following steps:

[0066] A. Start the range hood, the smoke baffle 5 rotates open, and the range hood fan is turned on. The fan is provided in the main housing 1;

[0067] B. The oil smoke floats upwards. The oil smoke at the rear side will hit the curved panel 31 with good smoke-conveying function. This part of the oil smoke moves upwards along the curved panel;

[0068] C. The oil smoke moving upward in step B and other oil smoke float upward and enter the turbulence zone under the action of negative pressure in the smoke collecting chamber 2;

[0069] D. The oil smoke in the turbulence area enters the smoke collecting chamber 2 through the oil filter plate under the action of negative pressure and is discharged to the outside.

[0070] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any other manner. Any person skilled in the art may utilize the above-disclosed technical content to modify or modify the present invention into equivalent embodiments. However, any simple modifications, equivalent variations, and modifications to the above embodiments that do not depart from the technical content of the present invention and are based on the technical essence of the present invention remain within the scope of protection of the present invention.

Claims

1. A side-suction range hood, comprising a smoke collecting chamber and a panel structure arranged in front of the smoke collecting chamber, characterized in that: The panel structure comprises a curved panel at the bottom and an inclined panel at the top, an oil filter screen is provided on the inclined panel, and a smoke shield is hinged at the top front end of the smoke collecting chamber and is openable and closable to cover the outside of the inclined panel; The vertical cross-section of the curved panel is an arc. When the range hood is installed above the stove, the center of the arc of the curved panel is located on the plane where the top surface of the stove is located. The distance from the center of the circle to the wall on which the range hood is installed is equal to the radius of the arc of the curved panel; A lower connecting portion is provided between the inclined panel and the curved panel, the lower connecting portion having a mating section connected to the curved panel and a lower connecting section extending rearward and downward along the mating section. When the smoke baffle is in a closed state, the smoke baffle is perpendicular to the mating section. The oil filter screen is detachably fixed obliquely in the screen hole on the inclined panel, and an L-shaped mounting frame extending inward is provided at the edge of the screen hole, and the lower connecting section is connected to the lower end frame of the mounting frame; a card plate is provided at the lower end of the oil filter screen, and a card hole matching the card plate is provided on the mounting frame.

2. The range hood according to claim 1, characterized in that: The smoke baffle moves along an arc path during the opening and closing process, and the arc path, the extended arc line of the arc panel, and the smoke baffle form a spoiler area.

3. The range hood according to claim 1 or 2, characterized in that: The smoke shield is provided with a display component, and the inclined panel is concave to form a receiving groove for receiving the display component.

4. The range hood according to claim 1 or 2, characterized in that: The panel structure further includes an inclined support panel located at the upper end; when the smoke shield is in a closed state, the smoke shield is attached to the outer side of the inclined support panel.

5. The range hood according to claim 4, characterized in that: A horizontal connecting plate is connected between the inclined supporting panel and the inclined panel.

6. The range hood according to claim 1, characterized in that: A stove is provided on the stovetop, and a stove ring area for placing cooking utensils is provided on the stove; after the range hood is installed, the stove ring area is located behind the vertical plane where the front end of the smoke collecting chamber is located.

7. A method for operating the side-suction range hood according to any one of claims 1 to 6, comprising the following steps: A. Start the range hood, rotate the smoke baffle open, and turn on the fan of the range hood; B. The oil smoke floats upward, and the oil smoke at the rear side will hit the curved panel with better smoke-conveying function, and this part of the oil smoke moves upward along the curved panel; C. The oil smoke moving upward in step B and other oil smoke float upward and enter the turbulence zone under the action of negative pressure in the smoke collecting chamber; The oil smoke in the turbulence area enters the smoke collecting chamber through the oil filter plate under the action of negative pressure and is discharged to the outside.

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