Range hood

Abstract

This invention relates to a range hood, comprising: a body, a baffle plate, and a fan cabinet. The body has an internal smoke collection chamber and includes a front panel and a top panel connected to the front panel. An air inlet is located at the bottom of the front panel, and an air outlet is located on the top panel. When the range hood is operating, the fan cabinet provides suction, causing the cooking fumes in the kitchen space to enter the first chamber through the air inlet, then enter the air intake side of the fan cabinet, and are discharged outwards into the common flue through the air outlet and the air outlet. During normal use, the air in the second chamber is blocked by the baffle plate from entering the first chamber, thus preventing turbulence with the air entering the fan cabinet from the air inlet. This allows the fan cabinet to concentrate the smoke intake from the air inlet, optimizing the smoke extraction effect and reducing the fan cabinet's operating frequency, thereby reducing fan noise and saving energy.

Description

Technical Field

[0001] This invention relates to the field of kitchen appliance technology, and in particular to a range hood. Background Technology

[0002] Range hoods have been around in China for nearly 20 years, evolving from the initial top-mounted, slim models to the side-mounted, deep models, and then further to the current situation where top-mounted, self-cleaning models and European-style range hoods are the mainstays. Functionally, they can be categorized into multimedia range hoods, built-in range hoods, wall-mounted and side-mounted range hoods, solid wood range hoods, and so on. However, as the height of modern buildings gradually increases, to effectively extract oil and smoke, range hoods are generally made by increasing the airflow and air pressure. However, this often results in increased noise levels, which not only affects the user experience but also the physical and mental health of the cook. Summary of the Invention

[0003] The technical problem solved by this invention is to provide a range hood that can effectively ensure the extraction of cooking fumes and reduce noise.

[0004] The above-mentioned technical problems are solved by the following technical solutions:

[0005] A range hood includes: a body with a smoke collection chamber inside; the body includes a front panel and a top panel connected to the front panel; an air inlet is provided at the bottom of the front panel; and an air outlet is provided on the top panel; a baffle plate and a fan cabinet; the baffle plate is disposed in the smoke collection chamber and divides the smoke collection chamber into a first chamber and a second chamber that are isolated from each other; the first chamber is located below the second chamber; the first chamber is connected to the external environment of the body through the air inlet; and the second chamber is connected to a common flue through the air outlet; the fan cabinet is disposed in the first chamber and has an air outlet end; the baffle plate has a through-hole, and the air outlet end extends into the second chamber through the through-hole and is opposite to the air outlet.

[0006] The beneficial effects of the range hood described in this invention compared to the prior art are as follows:

[0007] When the aforementioned range hood is working, the blower provides suction, drawing the cooking fumes from the kitchen into the first chamber through the air inlet. The fumes then enter the blower's intake side and are discharged into the common flue through the blower's outlet. During normal use, the air in the second chamber is blocked by the baffle plate, preventing it from entering the first chamber. This avoids turbulence with the air entering the blower from the air inlet, allowing the blower to concentrate the fumes drawn in through the air inlet. This optimizes the range hood's suction effect, reduces the blower's operating frequency, decreases fan noise, and saves energy.

[0008] In one embodiment, one end of the wind deflector is provided with a first bending plate, the surface of the first bending plate being stacked and connected to one end of the top panel near the front panel.

[0009] In one embodiment, the fuselage further includes a back panel spaced apart from the front panel and two side panels spaced apart from each other; the back panel is connected to the top panel and the two side panels respectively; the other end of the wind deflector is provided with a second bending plate, the surface of the second bending plate is stacked and connected to the top of the back panel, and the two opposite sides of the wind deflector are in close contact with the inner surfaces of the two side panels respectively.

[0010] In one embodiment, the surface of the first bent plate is detachably connected to the top panel via a first fastener; the surface of the second bent plate is detachably connected to the back panel via a second fastener. This facilitates the removal or installation of the air guide plate on the inner wall of the machine body, while ensuring the airtightness of the connection between the air guide plate and the inner wall of the machine body.

[0011] In one embodiment, the range hood further includes a smoke baffle; the smoke baffle is mounted on the body and stacked on top of the front panel, the smoke baffle is used to isolate the front panel from the smoke collection chamber; the air inlet side of the blower unit is spaced apart from the smoke baffle to form an air inlet channel. Thus, on the one hand, because the smoke baffle can isolate the front panel and its electrical components from the smoke collection chamber, the fumes sucked in by the range hood during operation will not invade the electrical components and cause them to malfunction, thus preventing damage to core components; on the other hand, because the smoke baffle is located inside the smoke collection chamber and directly in front of the blower unit, the blower unit and the smoke baffle together form a narrow air inlet channel. According to Bernoulli's principle, when a fluid flows in a channel, with the same flow rate, the smaller the cross-sectional area the fluid passes through, the greater its velocity. Therefore, the above-mentioned range hood has a more significant effect in absorbing and expelling fumes.

[0012] In one embodiment, the front panel is provided with electrical components; the electrical components are at least one of a control switch, a lighting spotlight, and a circuit control board.

[0013] In one embodiment, the range hood further includes a decorative panel; the decorative panel is stacked on the front panel; the front panel has a smoke-blocking surface adjacent to the air inlet; the decorative panel has a protrusion extending below the smoke-blocking surface, the protrusion being opposite to the upper area of ​​the air inlet. Thus, because the smoke-blocking surface and the protrusion block the rising fumes, when the rising fumes encounter the smoke-blocking surface of the front panel above the air inlet, they are blocked and dispersed, preventing the fumes from rising further. Simultaneously, the protrusion of the decorative panel effectively prevents the fumes from diffusing outwards, ensuring that the range hood completely draws the remaining fumes into the machine body, preventing fumes from reaching the face and protecting the health of the cook. Furthermore, the downward-positioned air inlet causes the internal fume channel of the range hood to bend, thereby improving the grease separation efficiency of the range hood.

[0014] In one embodiment, when the range hood is installed on the wall of the kitchen, the distance between the height of the bottom edge of the protrusion relative to the ground and the height of the bottom edge of the smoke-blocking surface relative to the ground is S, where S is within 0.2 mm.

[0015] In one embodiment, the distance between the bottom edge of the protrusion and the top edge of the smoke-blocking surface is L, where L is 10 mm to 40 mm.

[0016] In one embodiment, an air inlet screen is provided at the air inlet, and the air inlet screen has a plurality of filter holes; the screen surface of the air inlet screen is a concave surface facing the interior of the body; a connecting shell is provided at the air outlet, and the connecting shell is used to communicate with a common flue. Attached Figure Description

[0017] The accompanying drawings, which form part of this application, are used to provide a further understanding of the invention. The illustrative embodiments of the invention and their descriptions are used to explain the invention and do not constitute an improper limitation of the invention.

[0018] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying 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.

[0019] Figure 1 This is a schematic diagram of the structure of a range hood according to an embodiment of the present invention;

[0020] Figure 2 for Figure 1 A schematic diagram of the structure of the decorative panel, front panel, air inlet grille, wind deflector and smoke deflector separated from each other;

[0021] Figure 3 for Figure 1 A schematic diagram of the structure where the top panel and back panel are separated from each other from one perspective;

[0022] Figure 4 This is a schematic diagram of the baffle plate of a range hood according to an embodiment of the present invention.

[0023] Figure 5 This is a cross-sectional structural diagram of a range hood according to an embodiment of the present invention;

[0024] Figure 6 for Figure 5 A magnified structural diagram at point A;

[0025] Figure 7 for Figure 5 A magnified structural diagram at point B;

[0026] Figure 8 for Figure 5 A magnified structural diagram at point C.

[0027] Figure label:

[0028] 10. Body; 101. Smoke Collection Chamber; 102. First Chamber; 103. Second Chamber; 104. Air Inlet Channel; 11. Front Panel; 111. Air Inlet; 112. Smoke Baffle; 113. Mounting Port; 12. Top Panel; 121. Air Outlet; 13. Back Panel; 131. Bottom Edge; 14. Side Panel; 15. Connecting Shell; 16. Flanged Edge; 20. Wind Baffle; 21. Through-hole; 22. First Bending Plate; 23. Second Bending Plate; 24. First Fastener; 25. Second Fastener; 30. Air Handling Unit; 31. Air Outlet End; 32. Air Inlet Side; 40. Smoke Baffle; 41. Recess; 42. Protrusion; 50. Electrical Components; 60. Decorative Panel; 61. Protrusion; 70. Air Inlet Screen; 71. Filter Hole; 80. Oil Cup Assembly. Detailed Implementation

[0029] To make the above-mentioned objects, features, and advantages of the present invention more apparent and understandable, specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings. Many specific details are set forth in the following description to provide a thorough understanding of the present invention. However, the present invention can be practiced in many other ways different from those described herein, and those skilled in the art can make similar modifications without departing from the spirit of the present invention. Therefore, the present invention is not limited to the specific embodiments disclosed below.

[0030] Generally, the fan unit of a range hood is fixed to the main body, with an air inlet on the front. When operating, the range hood draws cooking fumes from the kitchen into the main body through this inlet. However, assembly errors inevitably result in ventilation gaps on the main body. These gaps may exist at the connection between the top and side panels, the connection between the top and front panels, or the location of the connecting housing on the top panel. During operation, the fan unit draws cooking fumes from both the bottom and top sides of the kitchen into the fan unit, creating turbulence on the inlet side and significantly impacting the fume extraction efficiency.

[0031] See Figures 1 to 3 and Figure 5 , Figure 1 This is a schematic diagram of the structure of a range hood according to an embodiment of the present invention. Figure 2 It shows Figure 1 A schematic diagram of the structure from a single perspective, showing the decorative panel 60, front panel 11, air inlet mesh 70, wind deflector 20, and smoke deflector 40 separated from each other. Figure 3 It shows Figure 1 A schematic diagram of the structure from which the top panel 12 and the back panel 13 are separated. Figure 5 A cross-sectional view of a range hood according to an embodiment of the present invention is shown. The range hood provided in this embodiment includes a body 10, a baffle plate 20, and a fan housing 30. The body 10 has a smoke collection chamber 101 inside, and includes a front panel 11 and a top panel 12 connected to the front panel 11. An air inlet 111 is provided at the bottom of the front panel 11, and an air outlet 121 is provided on the top panel 12. The baffle plate 20 is disposed within the smoke collection chamber 101, dividing the smoke collection chamber 101 into a first chamber 102 and a second chamber 103 that are isolated from each other. The first chamber 102 is located below the second chamber 103 and is connected to the external environment of the body 10 through the air inlet 111. The second chamber 103 is connected to a common flue (not shown) through the air outlet 121. The air handling unit 30 is located in the first chamber 102 and has an air outlet 31. The baffle plate 20 has a through-hole 21, and the air outlet 31 extends into the second chamber 103 through the through-hole 21 and is opposite to the air outlet 121.

[0032] When the aforementioned range hood is working, the blower unit 30 provides suction power, causing the cooking fumes in the kitchen space to enter the first chamber 102 through the air inlet 111, and then enter the air intake side 32 of the blower unit 30. The fumes are then discharged outwards into the common flue through the air outlet 31 and air outlet 121 of the blower unit 30. During normal use of the range hood, the air in the second chamber 103 is blocked by the baffle plate 20, preventing it from entering the first chamber 102. This prevents turbulence from occurring between the air entering through the air inlet 111 and the air intake side 32 of the blower unit 30. This allows the blower unit 30 to concentrate the suction of the cooking fumes entering through the air inlet 111, thereby optimizing the range hood's suction effect and correspondingly reducing the operating frequency of the blower unit 30, thus reducing fan noise and saving energy.

[0033] Please see Figures 4 to 6 , Figure 4 This diagram shows a schematic view of the baffle plate 20 of a range hood according to an embodiment of the present invention. Figure 6 It shows Figure 5 Enlarged structural diagram at point A. Further, one end of the wind deflector 20 is provided with a first bent plate 22, the surface of the first bent plate 22 being stacked and connected to one end of the top panel 12 near the front panel 11.

[0034] Please see Figure 4 , Figure 5 and Figure 7 , Figure 7 It shows Figure 5 An enlarged structural diagram at point B. Further, the fuselage 10 also includes a back panel 13 spaced apart from the front panel 11, and two side panels 14 spaced apart from each other. The back panel 13 is connected to the top panel 12 and the two side panels 14, respectively. A second bent plate 23 is provided at the other end of the wind deflector 20. The surface of the second bent plate 23 is stacked and connected to the top of the back panel 13, and the two opposite sides of the wind deflector 20 are in close contact with the inner surfaces of the two side panels 14, respectively.

[0035] Please see Figure 6 and Figure 7 In one embodiment, the surface of the first bent plate 22 is detachably connected to the top panel 12 via a first fastener 24. The surface of the second bent plate 23 is detachably connected to the back panel 13 via a second fastener 25. This facilitates the removal or installation of the air guide plate on the inner wall of the body 10, while ensuring the sealing of the connection between the air guide plate and the inner wall of the body 10.

[0036] It should be noted that the first fastener 24 and the second fastener 25 may be, for example, screws, bolts, pins, rivets, clips, etc., and are not limited here. They can be set according to the actual situation. In addition, the first bending plate 22 and the second bending plate 23 are not limited to being installed on the machine body 10 by fasteners. As an optional solution, they can also be fixed to the machine body 10 by welding, bonding, or other methods.

[0037] It should be noted that the "first bent plate 22" and "second bent plate 23" can be "part of the windbreak plate 20", meaning that the "first bent plate 22" and "second bent plate 23" are integrally formed with the "other parts of the windbreak plate 20"; or they can be separate components that can be separated from the "other parts of the windbreak plate 20", meaning that the "first bent plate 22" and "second bent plate 23" can be manufactured independently and then combined with the "other parts of the windbreak plate 20" to form a whole. Figure 4 As shown, in one embodiment, the "first bending plate 22" and the "second bending plate 23" are integrally molded parts of the "wind deflector 20".

[0038] Please see Figure 2 , Figure 5 and Figure 8 , Figure 8 It shows Figure 5 An enlarged structural diagram at point C. In one embodiment, the range hood further includes a smoke baffle 40. The smoke baffle 40 is mounted on the body 10 and stacked on top of the front panel 11, serving to isolate the front panel 11 from the smoke collection chamber 101. The air inlet side 32 of the air handling unit 30 is spaced apart from the smoke baffle 40 to form an air inlet channel 104. Thus, on the one hand, since the baffle plate 40 can isolate the front panel 11 and the electrical components 50 installed on it from the smoke collection chamber 101, the oil fumes sucked in by the range hood during operation will not invade the electrical components 50 and cause them to fail, thus avoiding damage to the core components; on the other hand, since the baffle plate 40 is located inside the smoke collection chamber 101 and directly in front of the air handling unit 30, the air handling unit 30 and the baffle plate 40 form a narrow air intake channel 104. According to Bernoulli's principle, when a fluid flows in a channel, under the same flow rate, the smaller the cross-sectional area through which the fluid passes, the greater its flow velocity. Thus, the oil fume extraction effect of the range hood is more significant.

[0039] Please see Figure 2 , Figure 5 and Figure 8 In one embodiment, an electrical component 50 is provided on the front panel 11. The electrical component 50 is at least one of a control switch, a lighting spotlight, and a circuit control board.

[0040] It is understandable that the electrical component 50 can also be other core components set on the front panel 11, depending on actual needs, and is not limited here.

[0041] Please see Figure 2 , Figure 5 and Figure 8 Furthermore, Figure 2 and Figure 5 The electrical component 50 shown in the diagram is specifically two components, one of which is a control switch and the other is a lighting spotlight. Accordingly, the front panel 11 is provided with a mounting opening 113 that is adapted to the size of the electrical component 50, and the electrical component 50 is disposed in the mounting opening 113.

[0042] Furthermore, the range hood also includes a decorative panel 60. The decorative panel 60 is stacked on the front panel 11. The front panel 11 has a smoke-blocking surface 112 adjacent to the air inlet 111. The decorative panel 60 has a protrusion 61 that extends to the area below the smoke-blocking surface 112, and the protrusion 61 is opposite to the upper area of ​​the air inlet 111. Thus, because the smoke-blocking surface 112 and the protrusion 61 block the rising fumes, when the rising fumes encounter the smoke-blocking surface 112 of the front panel 11 located above the air inlet 111, they are blocked and dispersed by the smoke-blocking surface 112 of the front panel 11, preventing the fumes from continuing to rise. At the same time, the protrusion 61 of the decorative panel 60 can effectively prevent the fumes from spreading outward, thereby ensuring that the range hood completely sucks the remaining fumes into the body 10, so that the fumes do not reach the face, protecting the physical and mental health of the cook. In addition, the lower air inlet 111 makes the internal fumes channel of the range hood curved, thereby improving the grease separation efficiency of the range hood.

[0043] It should be noted that the "protrusion 61" can be "a part of the decorative panel 60", that is, the "protrusion 61" is integrally molded with "other parts of the decorative panel 60"; or it can be a separate component that can be separated from "other parts of the decorative panel 60", that is, the "protrusion 61" can be manufactured independently and then combined with "other parts of the decorative panel 60" to form a whole. Figure 5 and Figure 8 As shown, in one embodiment, the "protrusion 61" is an integrally molded part of the "decorative panel 60".

[0044] It should be noted that the decorative panel 60 is fixed to the front panel 11 by means of bolts, screws, pins, rivets, clips and other mounting components. Of course, it can also be fixed to the front panel 11 by means of adhesive, welding and other methods. There is no limitation here, and it can be set according to the actual situation.

[0045] Please see Figure 2 , Figure 5 and Figure 8 In one embodiment, the baffle plate 40 has at least one annular protrusion 42 or an annular recess 41 on its surface. Thus, when the baffle plate 40 is positioned directly in front of the air handling unit 30 inside the range hood, it can effectively block and reflect the noise generated inside the air handling unit 30 when the range hood is working, thereby reducing the noise during use by the cook.

[0046] See Figure 2 Furthermore, there are multiple protrusions 42 or recesses 41, which are nested sequentially from the center to the periphery of the smoke baffle 40. This effectively isolates and reflects noise generated inside the fan housing 30 during operation. Specifically, the recesses 41 are formed by pressing on the surface of the smoke baffle 40. The specific shapes of the protrusions 42 or recesses 41 are not limited to, for example, a U-shape, a circular ring, an elliptical ring, etc., and can be set according to actual conditions.

[0047] Generally speaking, there is a period of time between the generation of cooking fumes and their absorption by the range hood. If the fumes cannot be completely absorbed by the fan 30 within this period of time, the drifting fumes will generate vortices inside the machine and spread outside the machine body 10, affecting the cook's use.

[0048] Please see Figure 2 , Figure 5 and Figure 8 In one embodiment, the distance between the air inlet side 32 of the fan housing 30 and the surface of the smoke baffle 40 is d, where d is 10mm-60mm. As an example, the distance d is specifically 10mm, 20mm, 30mm, 40mm, 50mm, and 60mm. This results in a relatively narrow air inlet channel 104, increasing the flow velocity of the fumes drawn in by the range hood as they pass through it. This allows the fumes to reach the inside of the fan housing 30 more quickly and be discharged into the common flue, significantly improving the range hood's smoke extraction efficiency. Of course, the distance d is not limited to 10mm-60mm; other values ​​are also possible and are not limited here.

[0049] See Figure 2 and Figure 3In one embodiment, the main body 10 also includes a connecting shell 15 located at the air outlet 121. The connecting shell 15 is used to communicate with the common flue. Thus, the fumes inside the main body 10 can be smoothly connected to the common flue through the connecting shell 15. Specifically, the connecting shell 15 is a surrounding panel arranged around the air outlet 121. Furthermore, a check valve is also provided on the connecting shell 15. Thus, when the blower 30 is operating, the blower 30 draws fumes from the kitchen space into the main body 10 through the air inlet 111, and sends them out through the air outlet 121, connecting shell 15, and check valve to the common flue. When the blower 30 stops operating, the check valve prevents fumes from the common flue from entering the main body 10 through the connecting shell 15, thereby preventing fumes from the common flue from flowing back into the kitchen space.

[0050] See Figures 1 to 3 In one embodiment, the range hood further includes an air inlet mesh 70 disposed at the air inlet 111. The air inlet mesh 70 has filter holes 71 on its surface. Thus, when the range hood is operating, as kitchen fumes are drawn into the body 10 through the air inlet 111, the filter holes 71 of the air inlet mesh 70 filter the fumes, preventing large particles from being sucked into the body 10 and damaging the fan. It should be noted that the shape of the filter holes 71 can be, for example, elongated, square, circular, or elliptical, etc., and is not limited here; it can be set according to actual conditions. Optionally, the mesh surface of the air inlet mesh 70 is a concave surface facing inwards towards the body 10. Thus, the concave air inlet mesh 70 improves the smoke collection effect at the air inlet 111.

[0051] See Figures 1 to 3 Furthermore, the range hood also includes an oil cup assembly 80 disposed at the bottom of the body 10. The oil cup assembly 80 is used to receive oil droplets falling downwards along the front of the body 10.

[0052] It should be noted that the back panel 13, the top panel 12 and the two side panels 14 can be an integrated structure, that is, manufactured by integral molding or welded into an integrated structure; of course, they can also be separable independent components, which are then assembled together using bolts, screws, pins, rivets, clips and other mounting components.

[0053] See Figure 2Furthermore, to facilitate the installation of the smoke baffle 40, flanges 16 are provided on both side panels 14 and the top panel 12. Three sides of the smoke baffle 40 are detachably connected to the flanges 16 of the two side panels 14 and the top panel 12 via mounting parts (not shown in the figure). In addition, another side of the smoke baffle 40 is detachably connected to one side of the air inlet mesh 70 via mounting parts, and the remaining three sides of the air inlet mesh 70 are detachably connected to the flanges 16 of the two side panels 14 and the bottom edge 131 of the back panel 13 via mounting parts.

[0054] See Figures 1 to 3 In one specific embodiment, the front panel 11 extends from one side of the body 10 to the other side. Furthermore, the protrusion 61 of the decorative panel 60 extends from one side of the body 10 to the other side. Thus, the protrusion 61 of the decorative panel 60 effectively prevents oil fumes from spreading outwards, ensuring that the range hood completely draws remaining oil fumes into the body 10, preventing oil fumes from reaching the face and protecting the health of the cook.

[0055] See Figure 8 Furthermore, when the range hood is installed on the kitchen wall, the distance between the bottom edge of the protrusion 61 and the bottom edge of the smoke-blocking surface 112 relative to the ground is S (not shown in the figure), and S is within 0.2mm. Specifically, S is 0mm, 0.1mm, and 0.2mm. In this way, on the one hand, a better smoke collection effect can be achieved, preventing oil fumes from reaching the face; on the other hand, it will not affect the entry of oil fumes into the interior of the body 10 through the air inlet 111.

[0056] It should be noted that the height of the bottom edge of the protrusion 61 relative to the ground can be higher or lower than the height of the bottom edge of the smoke-blocking surface 112 relative to the ground; this is not limited and can be set according to actual conditions. It should also be noted that the wall surface mentioned in this embodiment refers to the surface along the vertical direction F (e.g., ...). Figure 8 The wall structure shown in the image.

[0057] See Figure 8 In one embodiment, the distance between the bottom edge of the protrusion 61 and the top edge of the smoke-blocking surface 112 is L (e.g., ...). Figure 8As shown in the figure, L ranges from 10mm to 40mm. In this embodiment, L is specifically 10mm, 15mm, 20mm, 25mm, 30mm, 35mm, and 40mm. Thus, the size design of the protrusion 61 is relatively reasonable. On the one hand, the size of the protrusion 61 is not too small, so as to achieve a good smoke collection effect and prevent oil fumes from getting on the face; on the other hand, the protrusion 61 is not too large, so as not to affect the oil fumes from entering the interior of the body 10 through the air inlet 111.

[0058] Please see Figure 8 In one embodiment, when the range hood is installed on the wall of the kitchen, the inclination angle of the air inlet 111 relative to the vertical direction F is a1, the inclination angle of the smoke-blocking surface 112 relative to the vertical direction F is a2, and the inclination angle of the decorative panel 60 relative to the vertical direction F is a3. Wherein, a1 is 50°-70°, a2 is 70°-80°, and a3 is 20°-40°.

[0059] It should be noted that the front of the unit 10 refers to the side of the range hood facing the user after it is installed in the kitchen. The back of the unit 10 refers to the side of the range hood facing the wall after it is installed in the kitchen, which is the side opposite to the front of the unit 10. The top of the unit 10 refers to the side of the range hood that is away from the ground after it is installed in the kitchen. The sides of the unit 10 refer to the sides of the unit 10 located on either the front or the back of the unit 10.

[0060] It should also be noted that the external environment of the unit 10 is the installation environment of the range hood, specifically, for example, the kitchen space environment.

[0061] It should be noted that when describing a component being connected to another component, or a component being mounted on another component, it can be understood that the connection between the two components can specifically involve using mounting components such as bolts, screws, pins, and rivets, or using snap-fit, welding, or integral molding methods for fixation. Integral molding methods can employ processes such as extrusion, casting, press fitting, and injection molding.

[0062] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0063] The above embodiments merely illustrate several implementation methods of the present invention, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of the present invention, and these all fall within the protection scope of the present invention. Therefore, the protection scope of this invention patent should be determined by the appended claims.

[0064] 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" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing this 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. Therefore, they should not be construed as limitations on this invention.

[0065] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this invention, "a plurality of" means at least two, such as two, three, etc., unless otherwise explicitly specified.

[0066] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; 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; they can refer to the internal communication of two components or the interaction between two components, unless otherwise explicitly limited. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0067] In this 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," "over," and "on top" of 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.

[0068] It should be noted that when an element is referred to as being "fixed to" or "set on" another element, it can be directly on the other element or there may be an intervening element. When an element is considered to be "connected to" another element, it can be directly connected to the other element or there may be an intervening element. The terms "vertical," "horizontal," "upper," "lower," "left," "right," and similar expressions used herein are for illustrative purposes only and do not represent the only possible implementation.

Claims

1. A range hood, characterized in that, The range hood includes: The body (10) has a smoke collection chamber (101) inside. The body (10) includes a front panel (11) and a top panel (12) connected to the front panel (11). The bottom of the front panel (11) is provided with an air inlet (111), and the top panel (12) is provided with an air outlet (121). A baffle plate (20) and a blower (30) are provided. The baffle plate (20) is located inside the smoke collection chamber (101) and divides the smoke collection chamber (101) into a first chamber (102) and a second chamber (103) that are isolated from each other. The first chamber (102) is located below the second chamber (103). The first chamber (102) is connected to the external environment of the body (10) through the air inlet (111). The second chamber (103) is connected to the common flue through the air outlet (121). The blower (30) is located in the first chamber (102) and has an air outlet (31). The baffle plate (20) has a through-hole (21). The air outlet (31) extends into the second chamber through the through-hole (21). (103) inside and opposite to the air outlet (121); one end of the baffle (20) is provided with a first bending plate (22), the surface of the first bending plate (22) is stacked and connected to one end of the top panel (12) near the front panel (11); the body (10) also includes a back panel (13) that is spaced apart from the front panel (11) and two side panels (14) that are spaced apart from each other; the back panel (13) is connected to the top panel (12) and the two side panels (14) respectively; the other end of the baffle (20) is provided with a second bending plate (23), the surface of the second bending plate (23) is stacked and connected to the top of the back panel (13), and the two opposite sides of the baffle (20) are in close contact with the inner surfaces of the two side panels (14) respectively.

2. The range hood according to claim 1, characterized in that, The surface of the first bent plate (22) is detachably connected to the top panel (12) via a first fastener (24); the surface of the second bent plate (23) is detachably connected to the back panel (13) via a second fastener (25).

3. The range hood according to claim 1, characterized in that, The range hood also includes a smoke baffle (40); the smoke baffle (40) is installed on the body (10) and stacked with the front panel (11), the smoke baffle (40) is used to isolate the front panel (11) from the smoke collection chamber (101); the air inlet side (32) of the air handling unit (30) is spaced apart from the smoke baffle (40) to form an air inlet channel (104).

4. The range hood according to claim 3, characterized in that, The smoke baffle (40) has at least one annular protrusion (42) or an annular recess (41) on its surface.

5. The range hood according to claim 1, characterized in that, Electrical components (50) are provided on the front panel (11); the electrical components (50) are at least one of a control switch, a lighting spotlight, and a circuit control board.

6. The range hood according to claim 5, characterized in that, The front panel (11) is provided with a mounting opening (113) adapted to the size of the electrical component (50), and the electrical component (50) is disposed in the mounting opening (113).

7. The range hood according to claim 1, characterized in that, The range hood also includes a decorative panel (60); the decorative panel (60) is stacked on the front panel (11); the front panel (11) is provided with a smoke-blocking surface (112) adjacent to the air inlet (111); the decorative panel (60) is provided with a protrusion (61) extending to the area below the smoke-blocking surface (112), and the protrusion (61) is opposite to the upper area of ​​the air inlet (111).

8. The range hood according to claim 7, characterized in that, When the range hood is installed on the wall of the kitchen, the distance between the bottom edge of the protrusion (61) and the bottom edge of the smoke-blocking surface (112) relative to the ground is S, and S is within 0.2mm.

9. The range hood according to claim 8, characterized in that, The distance between the bottom edge of the protrusion (61) and the top edge of the smoke-blocking surface (112) is L, where L is 10mm to 40mm.

10. The range hood according to any one of claims 1 to 9, characterized in that, An air inlet screen (70) is provided at the air inlet (111), and the air inlet screen (70) has a plurality of filter holes (71); the screen surface of the air inlet screen (70) is a concave surface facing the interior of the body (10); a connecting shell (15) is provided at the air outlet (121), and the connecting shell (15) is used to connect with the public flue.

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