Range hood

Abstract

The utility model relates to the technical field of kitchen appliances, in particular to a range hood. According to the range hood provided by the embodiment of the invention, the exhaust fume collecting hood comprises the top hood body and the back hood body, and the back hood body is fixed at the rear end of the bottom side of the top hood body, so that the exhaust fume collecting hood is roughly in an inverted L shape. A first smoke suction opening part is formed in the front side of the top cover body, and second smoke suction opening parts are formed in the left and right sides of the top cover body in the horizontal direction; a third smoke suction port part is formed on the bottom side of the back cover body, and fourth smoke suction port parts are respectively formed on the left and right sides of the back cover body along the horizontal direction. Therefore, the six smoke suction ports which are arranged in a three-dimensional mode are formed in the smoke collecting hood, the smoke suction and exhaust area can be increased, a wrapping type smoke suction and exhaust mode is formed through the six smoke suction ports, the smoke suction and exhaust range and angle are increased, the smoke suction and exhaust effect is improved, and smoke leakage is reduced.

Description

Range hood Technical Field

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

[0002] Range hoods are typically installed above kitchen stoves to exhaust combustion gases and cooking fumes outdoors, thereby improving air quality in the kitchen.

[0003] In related technologies, the limited range of suction and exhaust of range hoods restricts their effectiveness in removing cooking fumes. Summary of the Invention

[0004] This application provides a range hood to improve the extraction and removal of cooking fumes.

[0005] This application provides a range hood, which includes:

[0006] The ventilation system is configured to drive the oil fumes inside the fume hood to be discharged.

[0007] The smoke collection hood includes:

[0008] A top cover is constructed to form a top smoke collection chamber and a top smoke inlet communicating with the top smoke collection chamber, the top smoke collection chamber being connected to the air duct system; the top smoke inlet opens downwards and includes:

[0009] The first smoke inlet extends horizontally and is formed on the front side of the top cover, communicating with the top smoke collection chamber;

[0010] Two second smoke inlets are respectively formed on both sides of the top cover along the horizontal direction and communicate with the top smoke collection chamber;

[0011] A back cover is located on the bottom side of the top cover and connected to the rear side of the top cover; the back cover is configured to form a back smoke collection chamber and a back smoke inlet, the back smoke collection chamber communicating with the top smoke collection chamber; the back smoke inlet opens forward and includes:

[0012] The third smoking opening extends along the horizontal direction and is formed on the bottom side of the back cover, communicating with the back smoke collection chamber;

[0013] Two fourth smoke inlets are formed on both sides of the back cover along the horizontal direction and are connected to the back smoke collection chamber.

[0014] The range hood provided in this application embodiment includes a top cover and a back cover. The back cover is fixed to the rear end of the bottom side of the top cover, making the range hood approximately inverted L-shaped. A first smoke inlet is formed on the front side of the top cover, and second smoke inlets are formed on the left and right sides of the top cover along the horizontal direction. A third smoke inlet is formed on the bottom side of the back cover, and fourth smoke inlets are formed on the left and right sides of the back cover along the horizontal direction. Thus, the six smoke inlets arranged in a three-dimensional pattern not only help increase the area for smoke extraction but also create a wraparound smoke extraction method, increasing the range and angle of smoke extraction, thereby improving the smoke extraction effect and reducing smoke escape.

[0015] In some embodiments of this application, the front ends of the two second smoking ports are respectively connected to the first smoking port.

[0016] The second smoke inlet is connected to the first smoke inlet, which helps to reduce the accumulation of grease at the connection between the second smoke inlet and the first smoke inlet, so that the smoke can be discharged smoothly.

[0017] In some embodiments of this application, the bottom ends of the two fourth smoking ports are respectively connected to the third smoking port.

[0018] The back-mounted smoke inlets, located on the bottom and left / right sides of the back cover, form a U-shaped structure. This not only increases the area for smoke extraction but also expands the range of smoke extraction, thereby improving the efficiency of smoke extraction and reducing smoke leakage. Furthermore, the fourth smoke inlet is connected to the third smoke inlet, which helps reduce grease buildup at the point of contact between the two inlets, resulting in smoother smoke removal.

[0019] In some embodiments of this application, the top ends of the two fourth smoking ports are respectively connected to the rear ends of the two second smoking ports.

[0020] This design connects the top smoke inlet with the back smoke inlet, reducing grease buildup at the junction of the back cover and the front cover, and improving the smoothness of smoke exhaust.

[0021] In some embodiments of this application, the top cover includes:

[0022] A top cover includes: a top plate, a front side plate, a first back plate, and two first side plates. The top plate is connected to the air duct system. The front side plate and the two first side plates are located at the bottom of the top plate. The front side plate is connected to the front end of the top plate, and the two first side plates are located at both ends of the top plate along the horizontal direction. The first back plate is fixed to the rear ends of the top plate and the two first side plates.

[0023] A first cover plate, connected to the top cover, is located below the top plate portion. A lighting element is provided on the first cover plate. There is a gap between the first cover plate and the front side plate portion to form the first smoke inlet portion. There are gaps between the first cover plate and the two first side plates portions to form two second smoke inlets portions.

[0024] In this embodiment, the top cover forms a cavity structure with an opening on the bottom side by setting a top shell. A first cover plate is connected to the top shell, so that the front side and the left and right sides of the first cover plate are spaced apart from the top shell, thus forming a semi-enclosed top smoke inlet, which is simple in structure. The first cover plate can not only be used to form the top smoke inlet, but also provide space for the installation of lighting components.

[0025] In some embodiments of this application, the bottom end of the front side panel is bent backward to form a first bottom edge, and the first bottom edge is spaced from the front end of the first cover to form the first smoking opening.

[0026] A first smoke guide plate is connected to one end of the first bottom edge facing the first smoking port. The first smoke guide plate is opposite to and spaced apart from the front side plate. The first smoke guide plate is inclined backward relative to the front side plate from bottom to top.

[0027] In this embodiment, the bottom end of the front panel is formed with a first bottom edge to facilitate connection with the first smoke guide plate. By providing the first smoke guide plate at the first smoke inlet, the fumes are guided into the top smoke collection chamber, increasing the flow rate of the fumes into the top smoke collection chamber and helping to reduce smoke leakage.

[0028] In some embodiments of this application, the bottom ends of the two first side plates bend toward each other to form a second bottom edge, the second bottom edge being spaced apart from the top plate; and the second bottom edge being spaced apart from the first cover plate to form a second smoke inlet.

[0029] A second smoke guide plate is connected to one end of the second bottom edge that is away from the first side plate. The second smoke guide plate is opposite to the first side plate and is spaced apart. The second smoke guide plate is inclined from bottom to top away from the first side plate.

[0030] In this embodiment, the bottom end of the first side plate is provided with a second bottom edge to facilitate connection with the second smoke guide plate. By providing the second smoke guide plate at the second smoke inlet, the fumes are guided into the top smoke collection chamber, increasing the flow rate of the fumes into the top smoke collection chamber and helping to reduce smoke leakage.

[0031] In some embodiments of this application, the smoke collection hood further includes a first connecting structure, the first connecting structure comprising:

[0032] The first connecting plate is in surface contact with the top surface of the first cover plate and is fixedly connected.

[0033] A plurality of first connectors, wherein some of the first connectors connect the first connecting plate and the first smoke guide plate, and other first connectors connect the first connecting plate and the second smoke guide plate; there is a gap between two adjacent first connectors.

[0034] This application embodiment, by setting multiple first connectors to connect the first smoke guide plate and the first connecting plate, and to connect the second smoke guide plate and the first connecting plate, helps to improve the stability of the connection between the first connecting structure and the smoke collection hood; the interval between two adjacent first connectors reduces the resistance to the flow of oil fumes, allowing the oil fumes to smoothly enter the top smoke collection chamber.

[0035] In some embodiments of this application, the back cover includes:

[0036] A back cover, comprising: a second back plate, a bottom plate, and two second side plates, wherein the second back plate is fixedly connected to the top cover; the bottom plate is fixed to the front side of the bottom end of the second back plate, and the two second side plates are respectively fixed to the front sides of both ends of the second back plate along the horizontal direction.

[0037] The second cover plate is connected to the back cover and is located in front of the back cover. A control device is provided on the second cover plate. There is a gap between the second cover plate and the bottom plate to form the third smoke inlet. There is a gap between the second cover plate and the two second side plates to form two fourth smoke inlets.

[0038] In this embodiment, the back cover forms a cavity structure with a front opening by setting a back cover shell. A second cover plate is connected to the back cover shell, so that the bottom side and the left and right sides of the second cover plate are spaced from the back cover shell, thereby forming a semi-enclosed back smoke inlet structure, which is simple in structure. The second cover plate can not only be used to form the back smoke inlet, but also provide installation space for control devices.

[0039] In some embodiments of this application, the bottom plate is provided with an oil outlet, and an oil cup is detachably provided below the bottom plate;

[0040] The front end of the base plate is connected to a first front side, which is opposite to and spaced from the second back plate; there is a gap between the first front side and the second cover plate to form the third smoking port.

[0041] An inclined third smoke guide plate is connected to one end of the first front part away from the bottom plate. The third smoke guide plate is opposite to the bottom plate and is spaced apart. The third smoke guide plate is inclined from bottom to top toward the second back plate.

[0042] In this embodiment, a third smoke guide plate is provided at the third smoke inlet to guide the fumes into the back smoke collection chamber, thereby increasing the flow rate of the fumes into the back smoke collection chamber and helping to reduce smoke leakage.

[0043] In some embodiments of this application, the front ends of the two second side plates bend toward each other to form a second front side, the second front side being opposite to and spaced from the second back plate; and a gap is formed between the second front side and the second cover plate to form the fourth smoke inlet.

[0044] A fourth smoke guide plate is connected to one end of the second front portion away from the second side plate portion. The fourth smoke guide plate is opposite to the second side plate portion and is spaced apart. The fourth smoke guide plate is inclined relative to the second side plate portion from front to back.

[0045] In this embodiment, the front end of the second side plate is provided with a second front edge to facilitate connection with the fourth smoke guide plate. By providing the fourth smoke guide plate at the fourth smoke inlet, the fumes are guided into the back smoke collection chamber, increasing the flow rate of fumes into the back smoke collection chamber and helping to reduce smoke leakage.

[0046] In some embodiments of this application, the smoke hood further includes a second connecting structure, the second connecting structure comprising:

[0047] The second connecting plate is annular; the second connecting plate and the second cover plate are in surface contact and fixedly connected.

[0048] The third connecting plate is ring-shaped; it is parallel to the second connecting plate and is arranged at intervals on the rear side of the second connecting plate; the outer edge of the third connecting plate is connected to the third smoke guide plate and the fourth smoke guide plate respectively;

[0049] A plurality of second connectors are fixedly connected to the second connecting plate and the third connecting plate respectively, and the plurality of second connectors are arranged at intervals along the circumference of the second connecting plate.

[0050] The second connecting structure in this embodiment improves the stability of the connection between the second connecting structure and the second cover plate by providing an annular second connecting plate that contacts and is fixedly connected to the second cover plate. Furthermore, a third connecting plate connects the third and fourth smoke guide plates, thus connecting the second connecting structure to the back cover. Multiple third connecting members connect the second and third connecting plates, and the second connecting plate, multiple second connecting members, and the third connecting plate form a channel communicating with the back smoke inlet, restricting and guiding the oil fumes into the back smoke collection chamber, helping to reduce smoke leakage. Attached Figure Description

[0051] Figure 1 is a structural schematic diagram of the range hood provided in an embodiment of this application;

[0052] Figure 2 is a structural schematic diagram of the range hood provided in the embodiment of this application;

[0053] Figure 3 is a front view of the range hood provided in an embodiment of this application;

[0054] Figure 4 is a cross-sectional view of AA in Figure 3;

[0055] Figure 5 is an enlarged schematic diagram of region P in Figure 4;

[0056] Figure 6 is a left view of the range hood provided in an embodiment of this application;

[0057] Figure 7 is a cross-sectional view of BB in Figure 6;

[0058] Figure 8 is an enlarged schematic diagram of region Q in Figure 7;

[0059] Figure 9 is an enlarged schematic diagram of region M in Figure 4;

[0060] Figure 10 is a CC cross-sectional view in Figure 3;

[0061] Figure 11 is an enlarged schematic diagram of region N in Figure 10;

[0062] Figure 12 is a schematic diagram of the structure of the range hood with the first and second covers removed according to an embodiment of this application;

[0063] Figure 13 is a front view of the structure in Figure 12;

[0064] Figure 14 is a cross-sectional view of DD in Figure 13;

[0065] Figure 15 is an enlarged schematic diagram of region R in Figure 14;

[0066] Figure 16 is a cross-sectional view of EE in Figure 13;

[0067] Figure 17 is an enlarged schematic diagram of region S in Figure 16.

[0068] Explanation of reference numerals in the attached figures:

[0069] 10: Air duct system;

[0070] 20: Smoke hood; 21: Smoke collection chamber;

[0071] 100: Top cover; 101: Top smoke collection chamber; 110: Top smoke inlet; 111: First smoke inlet; 112: Second smoke inlet; 120: Top cover; 121: Top plate; 122: Front side plate; 1221: First bottom edge; 123: First back plate; 124: First side plate; 1241: Second bottom edge; 130: First cover plate; 140: First smoke guide plate; 150: Second smoke guide plate; 160: First connecting structure; 161: First connecting plate; 162: First connecting piece;

[0072] 200: Back cover; 201: Back smoke collection chamber; 210: Back smoke inlet; 211: Third smoke inlet; 212: Fourth smoke inlet; 220: Back cover; 221: Second back plate; 222: Second side plate; 223: Oil cup; 2231: Oil outlet; 224: First front part; 225: Second front part; 230: Second cover plate; 231: Control device; 240: Third smoke guide plate; 250: Fourth smoke guide plate; 260: Second connecting structure; 261: Second connecting plate; 262: Third connecting plate; 263: Second connecting piece. Detailed Implementation

[0073] To make the objectives and implementation methods of this application clearer, the exemplary implementation methods of this application will be clearly and completely described below with reference to the accompanying drawings of the exemplary embodiments of this application. Obviously, the exemplary embodiments described are only some embodiments of this application, and not all embodiments.

[0074] It should be noted that the brief descriptions of terms in this application are only for the convenience of understanding the embodiments described below, and are not intended to limit the embodiments of this application. Unless otherwise stated, these terms should be understood in their ordinary and common meaning.

[0075] The terms "first," "second," "third," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar or related objects or entities, and do not necessarily imply a specific order or sequence, unless otherwise specified. It should be understood that such terms are interchangeable where appropriate.

[0076] The terms “comprising” and “having”, and any variations thereof, are intended to cover but not exclude inclusion, for example, a product or device that includes a range of components is not necessarily limited to all of the components that are clearly listed, but may include other components that are not clearly listed or that are inherent to such product or device.

[0077] Range hoods vent exhaust fumes from the stove and cooking oil fumes outdoors, thus improving air quality in the kitchen. Therefore, the effectiveness of a range hood in removing and extracting these fumes is crucial.

[0078] Chinese cooking methods are diverse, including frying, stir-frying, braising, stewing, and more. Frying and braising, in particular, produce a lot of oil fumes. Therefore, there are many different types of range hoods. For example, there are top-mounted range hoods, side-mounted range hoods, and dual-suction range hoods, each addressing the issue of improving fume extraction from different angles.

[0079] However, the angle and range of fume extraction in related technologies are not comprehensive, limiting the extraction effect. For example, top-mounted range hoods, because they are far from the origin of the fumes, cannot completely extract all the fumes generated during stir-frying; top-side dual-suction range hoods, although close to the source of the fumes, cannot fully extract the fumes generated instantaneously near the front during stir-frying.

[0080] In view of this, the range hood provided in this application has suction and exhaust ports on the lower back and left and right sides, and the front top and left and right sides, forming a six-sided three-dimensional, enclosed oil fume suction and exhaust structure, reducing the escape of oil fumes during suction and exhaust, and improving the oil fume suction effect and efficiency.

[0081] The specific structure and function of the range hood provided in the embodiments of this application are described in detail below with reference to the accompanying drawings.

[0082] In the description of the embodiments of this application, the horizontal direction corresponds to the X-axis direction in the accompanying drawings, which is the left and right direction when the user faces the range hood; the directional terms "top" and "upper" refer to the side of the range hood facing away from the ground in the height direction, and the directional terms "bottom" and "lower" refer to the side of the range hood facing the ground in the height direction, with the height direction corresponding to the Z-axis direction in the accompanying drawings; the directional term "front" refers to the side of the range hood facing the user in the front-back direction, and the directional terms "back" and "back" refer to the side of the range hood facing away from the user in the front-back direction, with the front-back direction corresponding to the Y-axis direction in the accompanying drawings.

[0083] Referring to Figures 1 and 2, this application embodiment provides a range hood, which includes: a duct system 10 and a smoke collection hood 20, wherein the duct system 10 is configured to drive the oil fumes in the smoke collection hood 20 to be discharged.

[0084] The duct system 10 may include a duct shell and a fan. The duct shell is constructed to form a duct that communicates with the fume hood 20, and the fan is installed inside the duct shell. The duct shell is connected to the outside atmosphere through a pipe, thereby exhausting the fumes to the outside atmosphere.

[0085] Referring to Figures 3 and 4, the fume hood 20 is constructed to form a fume collection chamber 21, which is used to collect the fumes generated by the stove. Furthermore, the fume hood 20 is also constructed to form a smoke inlet, which connects the fume collection chamber 21 to the external space above the stove, allowing the fumes generated by the stove to enter the fume hood 20 through the smoke inlet.

[0086] The fume hood 20 is also configured to form a connecting port. The fume hood 20 is fixedly connected to the air duct system 10, so that the air duct is connected to the connecting port, thereby allowing the oil fumes in the fume hood 20 to enter the air duct and be discharged under the action of the fan.

[0087] For example, the connection port is located at the top of the fume hood 20, which facilitates connection with the air duct and helps to reduce the resistance to the exhaust of oil fumes.

[0088] In some embodiments of this application, the smoke hood 20 includes: a top cover 100, the top cover 100 being configured to form a top smoke collection cavity 101 and a top smoke inlet 110 communicating with the top smoke collection cavity 101, the top smoke collection cavity 101 being communicating with the air duct system 10; the top smoke inlet 110 opening downwards.

[0089] The air duct system 10 is fixedly connected to the top cover 100, and the air duct of the air duct system 10 is connected to the top smoke collection chamber 101. The fixed connection between the air duct system 10 and the top cover 100 includes, but is not limited to, screw connection, snap-fit ​​connection, etc.

[0090] The smoke hood 20 may also include a back cover 200, which is located on the underside of the top cover 100 and connected to the rear side of the top cover 100. The back cover 200 is configured to form a back smoke collection chamber 201 and a back smoke inlet 210, the back smoke collection chamber 201 being in communication with the top smoke collection chamber 101; the back smoke inlet 210 opening forward.

[0091] The back cover 200 has an opening at the top and the top cover 100 has an opening at the bottom. When the back cover 200 and the top cover 100 are connected, the back smoke collection chamber 201 is connected to the top smoke collection chamber 101.

[0092] In some embodiments, referring to FIG2, the top surface of the top cover 100 can be horizontal, and the height of the top cover 100 gradually increases from front to back. With this configuration, the front space of the top cover 100 is smaller, which helps to increase the flow rate of oil fumes entering the top smoke collection chamber 101 through the top smoke inlet 110, thereby helping to improve the oil fume absorption effect.

[0093] In some embodiments, the dimensions of the back cover 200 gradually increase from bottom to top along the front-to-back direction. This arrangement allows the top of the back cover 200 to match and connect with the rear end of the top cover 100; moreover, the smaller space at the bottom of the back cover 200 helps to increase the flow rate of fumes entering the back smoke collection chamber 201 through the back smoke inlet 210, thereby improving the fume extraction effect.

[0094] Referring again to Figure 1, the top smoke inlet 110 may include a first smoke inlet portion 111, which extends horizontally and is formed on the front side of the top cover 100, communicating with the top smoke collection chamber 101. The first smoke inlet portion 111 opens downwards, thereby serving to absorb and exhaust oil fumes.

[0095] The top smoke inlet 110 may also include two second smoke inlets 112, which are respectively formed on both sides of the top cover 100 in the horizontal direction and communicate with the top smoke collection chamber 101. Both second smoke inlets 112 open downwards.

[0096] As the height of the top cover 100 gradually increases from front to back, the two second smoke inlets 112 extend along the inclined direction of the bottom surface of the top cover 100, which helps to ensure the appearance of the range hood.

[0097] In some embodiments of this application, the front ends of the two second smoke inlets 112 are respectively connected to the first smoke inlet 111. Thus, the top smoke inlet 110 formed on the top cover 100 is arranged on the front side and the left and right sides of the top cover 100, forming a U-shaped smoke inlet structure. This not only helps to increase the area of ​​smoke extraction, but also helps to increase the range of smoke extraction, thereby improving the smoke extraction effect and reducing smoke escape.

[0098] Furthermore, the second smoke inlet 112 is connected to the first smoke inlet 111, which helps to reduce the accumulation of grease at the connection between the second smoke inlet 112 and the first smoke inlet 111, thus ensuring smooth exhaust of fumes.

[0099] Referring again to Figure 1, the rear smoke inlet 210 may include a third smoke inlet 211, which extends horizontally and is formed on the bottom side of the rear cover 200, communicating with the rear smoke collection chamber 201. The third smoke inlet 211 opens forward to draw in and exhaust fumes.

[0100] The back smoke inlet 210 may also include two fourth smoke inlets 212, which are formed on both sides of the back cover 200 in the horizontal direction and communicate with the back smoke collection chamber 201. Both fourth smoke inlets 212 open forward.

[0101] As the dimensions of the back cover 200 gradually decrease from top to bottom in the front-to-back direction, the two fourth smoking ports 212 extend in the inclined direction of the front of the back cover 200.

[0102] In some embodiments of this application, the bottom ends of the two fourth smoke inlets 212 are respectively connected to the third smoke inlet 211. Thus, the back smoke inlets 210 formed on the back cover 200 are arranged on the bottom side and the left and right sides of the back cover 200, forming a U-shaped smoke inlet structure. This not only helps to increase the area of ​​smoke extraction, but also helps to increase the range of smoke extraction, thereby improving the smoke extraction effect and reducing smoke escape.

[0103] Furthermore, the connection between the fourth smoke inlet 212 and the third smoke inlet 211 helps to reduce the accumulation of grease in contact between the fourth smoke inlet 212 and the third smoke inlet 211, making the exhaust of fumes smoother.

[0104] In some implementations of this application, the top ends of the two fourth smoke inlets 212 are respectively connected to the rear ends of the two second smoke inlets 112, so that the top smoke inlet 110 is connected to the back smoke inlet 210, which can reduce the accumulation of grease at the connection between the back cover 200 and the front cover and improve the smoothness of smoke exhaust.

[0105] Therefore, the range hood provided in this application embodiment has a smoke collection hood 20 including a top cover 100 and a back cover 200. The back cover 200 is fixed to the rear end of the bottom side of the top cover 100, making the smoke collection hood 20 approximately inverted L-shaped. A first smoke inlet 111 is formed on the front side of the top cover 100, and second smoke inlets 112 are formed on the left and right sides of the top cover 100 along the horizontal direction, respectively. A third smoke inlet 211 is formed on the bottom side of the back cover 200, and fourth smoke inlets 212 are formed on the left and right sides of the back cover 200 along the horizontal direction, respectively. In this way, the six smoke inlets arranged in a three-dimensional manner in the smoke collection hood 20 not only help to increase the area for smoke extraction, but also improve the range and angle of smoke extraction by forming an enveloping smoke extraction method through the six smoke inlets, thereby improving the smoke extraction effect and reducing smoke escape.

[0106] Referring to Figures 1 to 4, in some embodiments of this application, the top cover 100 includes: a top cover 120, the top side of which forms a communication opening communicating with the air duct system 10. The bottom side opening of the top cover 120 communicates with the back smoke collection chamber 201.

[0107] The top cover 120 may include a top plate portion 121, a front side plate portion 122, a first back plate portion 123, and two first side plate portions 124. The top plate portion 121 is connected to the air duct system 10. A communication opening is formed on the top plate portion 121. Exemplarily, the top plate portion 121 extends along a horizontal plane (corresponding to the XY plane in FIG2).

[0108] The front side panel 122 and the two first side panels 124 are located at the bottom of the top panel 121. The front side panel 122 is connected to the front end of the top panel 121, and the two first side panels 124 are located at both ends of the top panel 121 in the horizontal direction. The first back panel 123 is fixed to the rear end of the top panel 121 and the two first side panels 124.

[0109] The bottom end of the first side plate portion 124 is arranged at an angle, such that the dimension of the first side plate portion 124 gradually increases from front to back along the height direction.

[0110] In some embodiments, the top cover 120 can be a single integrally formed part, that is, the top plate 121, the front side plate 122, the first back plate 123 and the two first side plates 124 are a single integrally formed part, which helps to improve the appearance of the range hood and the airtightness of the top smoke collection chamber 101.

[0111] In other embodiments, at least one of the top plate portion 121, the front side plate portion 122, the first back plate portion 123, and the two first side plate portions 124 is provided separately and can be fixedly connected by means of riveting, snap-fitting, screw connection, etc.

[0112] The top cover 100 of this embodiment may further include a first cover plate 130, which is located below the top plate portion 121 and is connected to the top cover 120. The first cover plate 130 may be directly connected to the top cover 120, and the connection method includes, but is not limited to, snap-fit, screw connection, etc. The first cover plate 130 may also be indirectly connected to the top cover 120 through an intermediate component.

[0113] The first cover plate 130 is equipped with lighting elements. Since the top cover 100 is arranged in a horizontal plane, the lighting elements on the first cover plate 130 can ensure the installation height of the lighting elements and improve the lighting effect.

[0114] Referring to Figures 4 and 5, there is a gap between the first cover plate 130 and the front side plate portion 122 to form a first smoking port portion 111. The first cover plate 130 and the front side plate portion 122 are spaced apart in the front-rear direction, thereby forming the first smoking port portion 111.

[0115] Referring to Figures 6 to 8, the first cover plate 130 is spaced apart from the two first side plate portions 124 to form two second smoke inlets 112. The first cover plate 130 and the two first side plate portions 124 are spaced apart in the horizontal direction to form two second smoke inlets 112.

[0116] Therefore, in this embodiment, the top cover 100 forms a cavity structure with a bottom opening by setting a top cover shell 120, and is connected to the top cover shell 120 by a first cover plate 130, so that the front side and the left and right sides of the first cover plate 130 are spaced from the top cover shell 120, thereby forming a semi-enclosed top smoke inlet 110, which has a simple structure. The first cover plate 130 can not only be used to form the top smoke inlet 110, but also provide space for the installation of lighting components.

[0117] Referring again to Figures 4 and 5, in some embodiments of this application, the bottom end of the front side panel 122 bends backward to form a first bottom edge 1221, which is opposite to and spaced from the top panel 121 in the height direction. The first bottom edge 1221 is spaced from the front end of the first cover plate 130 to form a first smoke inlet 111.

[0118] A first smoke guide plate 140 is connected to one end of the first bottom edge 1221 facing the first smoke inlet 111. The end of the first smoke guide plate 140 away from the first bottom edge 1221 is inclined away from the front side plate 122. The first smoke guide plate 140 and the front side plate 122 are opposite to each other in the front-back direction and are spaced apart. The first smoke guide plate 140 is inclined backward relative to the front side plate 122 from bottom to top. That is, along the height direction from bottom to top, the gap between the first smoke guide plate 140 and the front side plate 122 gradually increases.

[0119] In this embodiment, the bottom end of the front side plate 122 is formed with a first bottom edge 1221 to facilitate connection with the first smoke guide plate 140. By providing the first smoke guide plate 140 at the first smoke inlet 111, the fumes are guided into the top smoke collection chamber 101, increasing the flow rate of the fumes into the top smoke collection chamber 101 and helping to reduce smoke leakage.

[0120] Referring to Figures 7 and 8, in some embodiments of this application, the bottom ends of the two first side plate portions 124 bend toward each other to form a second bottom edge portion 1241, which is opposite to and spaced from the top plate portion 121 in the height direction. A gap exists between the second bottom edge portion 1241 and the first cover plate 130 to form a second smoke inlet portion 112.

[0121] A second smoke guide plate 150 is connected to one end of the second bottom edge 1241 that is away from the first side plate 124. The end of the second smoke guide plate 150 that is away from the second bottom edge 1241 is inclined away from the first side plate 124. The second smoke guide plate 150 and the first side plate 124 are horizontally opposite each other and spaced apart. The second smoke guide plate 150 is inclined from bottom to top away from the first side plate 124. The horizontal distance between the second smoke guide plate 150 and the first side plate 124 gradually increases from the first side plate 124 toward the center of the top smoke hood 20.

[0122] In this embodiment, the bottom end of the first side plate portion 124 is provided with a second bottom edge portion 1241 to facilitate connection with the second smoke guide plate 150. By providing the second smoke guide plate 150 at the second smoke inlet portion 112, the fumes are guided into the top smoke collection chamber 101, increasing the flow rate of fumes into the top smoke collection chamber 101 and helping to reduce smoke leakage.

[0123] Referring again to Figures 1 to 4, in some embodiments of this application, the back cover 200 may include a back cover shell 220, with a top opening for communicating with the top smoke collection chamber 101. The back cover shell 220 is fixedly connected to the top cover 100, wherein the back cover shell 220 may be fixedly connected to the top cover shell 120.

[0124] The back cover 220 includes a second back plate portion 221, a bottom plate portion, and two second side plate portions 222. The second back plate portion 221 is fixedly connected to the top cover 100. The bottom plate portion is fixed to the front side of the bottom end of the second back plate portion 221, and the two second side plate portions 222 are respectively fixed to the front sides of the two ends of the second back plate portion 221 in the horizontal direction.

[0125] The second back panel 221 is located below the first back panel 123 and is connected to the first back panel 123. The second back panel 221 can be integrally formed with the first back panel 123, thus forming a flat back panel structure on the rear side of the smoke hood 20, which helps to improve the appearance of the smoke hood 20.

[0126] Two second side plate portions 222 are located below two first side plate portions 124, and the second side plate portions 222 are connected to the first side plate portions 124. The two second side plate portions 222 can be integrally formed with the two first side plate portions 124 respectively, thus forming an integral flat side plate structure on the left and right sides of the smoke hood 20, which is simple in structure.

[0127] The front end of the second side plate portion 222 is arranged at an angle, so that the size of the second side plate portion 222 gradually decreases from top to bottom in the front-back direction.

[0128] The bottom plate can be arranged parallel to the horizontal plane and is opposite to the top plate 121 in the height direction and is spaced apart.

[0129] The back cover 200 of this embodiment may further include a second cover plate 230, which is located in front of the back cover 220 and connected to the back cover 220. The second cover plate 230 may be directly connected to the back cover 220, and the connection method includes, but is not limited to, snap-fit, screw connection, etc. The second cover plate 230 may also be indirectly connected to the top cover 120 through an intermediate component.

[0130] The second cover plate 230 is equipped with a control device 231, which may include a display screen, operation buttons, a processor, etc. Since the second cover plate 230 faces the user, it is convenient for the user to operate.

[0131] Referring to Figures 4 and 9, there is a gap between the second cover plate 230 and the bottom plate to form the third smoke inlet 211. The second cover plate 230 and the bottom plate are spaced apart along the height direction, thereby forming the third smoke inlet 211.

[0132] Referring to Figures 10 and 11, the second cover plate 230 is spaced apart from the two second side plate portions 222 to form two fourth smoke inlets 212. The second cover plate 230 and the two second side plate portions 222 are spaced apart in the horizontal direction to form the fourth smoke inlets 212.

[0133] Therefore, in this embodiment, the back cover 200 forms a cavity structure with a front opening by setting a back cover shell 220, and is connected to the back cover shell 220 by a second cover plate 230. This results in a gap between the bottom side and the left and right sides of the second cover plate 230 and the back cover shell 220, thus forming a semi-enclosed back smoke inlet 210, which has a simple structure. The second cover plate 230 not only forms the back smoke inlet 210, but also provides installation space for the control device 231.

[0134] Referring to Figures 4 and 9, in some possible implementations of this application, the base plate is provided with an oil outlet 2231, and an oil cup 223 is detachably provided below the base plate. The oil cup 223 can collect grease, and its detachability facilitates cleaning by the user. The oil cup 223 can be snapped into the base plate.

[0135] In the accompanying drawings, the bottom plate portion of the back cover 220 is omitted, thereby forming an oil passage 2231 at the bottom end of the back cover 220. However, this is not a limitation on the area of ​​the oil passage 2231. For example, multiple through holes can be arranged on the bottom plate portion to form the oil passage 2231.

[0136] The front end of the base plate is connected to a first front edge 224, which is opposite to and spaced from the second back plate 221 in the front-rear direction. There is a gap between the first front edge 224 and the second cover plate 230 to form a third smoke inlet 211.

[0137] An inclined third smoke guide plate 240 is connected to one end of the first front portion 224 away from the bottom plate. The end of the third smoke guide plate 240 away from the first front portion 224 is inclined away from the bottom plate. The third smoke guide plate 240 and the bottom plate are opposite to each other in the height direction and are spaced apart. The third smoke guide plate 240 is inclined from bottom to top toward the second back plate 221. It can be understood that the top end of the first front portion 224 is connected to the bottom end of the third smoke guide plate 240, the third smoke guide plate 240 is inclined, and the top end of the third smoke guide plate 240 is inclined away from the bottom plate.

[0138] In this embodiment, a third smoke guide plate 240 is provided at the third smoke inlet 211 to guide the oil fumes into the back smoke collection chamber 201, thereby increasing the flow rate of the oil fumes into the back smoke collection chamber 201 and helping to reduce smoke leakage.

[0139] Referring to Figures 10 and 11, in some implementations of this application, the front ends of the two second side plate portions 222 bend toward each other to form a second front edge portion 225. The second front edge portion 225 and the second back plate portion 221 are opposite to each other in the front-rear direction and are spaced apart. There is a gap between the second front edge portion 225 and the second cover plate 230 to form a fourth smoke inlet portion 212.

[0140] A fourth smoke guide plate 250 is connected to one end of the second front portion 225 away from the second side plate portion 222. The end of the fourth smoke guide plate 250 away from the second front portion 225 is inclined away from the second side plate portion 222. The fourth smoke guide plate 250 and the second side plate portion 222 are horizontally opposite each other and spaced apart. The fourth smoke guide plate 250 is inclined relative to the second side plate portion 222 from front to back. The horizontal distance between the fourth smoke guide plate 250 and the second side plate portion 222 gradually increases from the second side plate portion 222 toward the center of the rear smoke hood 20.

[0141] In this embodiment, the front end of the second side plate 222 is provided with a second front edge 225 to facilitate connection with the fourth smoke guide plate 250. By providing the fourth smoke guide plate 250 at the fourth smoke inlet 212, the fumes are guided into the back smoke collection chamber 201, increasing the flow rate of fumes into the back smoke collection chamber 201 and helping to reduce smoke leakage.

[0142] In this embodiment of the application, by setting inclined smoke guide plates at each smoke inlet, the oil fumes are made to converge towards the inside of the smoke collection chamber and then discharged.

[0143] Referring to Figures 12 and 13, in some embodiments of this application, the smoke hood 20 further includes a first connecting structure 160, through which the first cover plate 130 is connected to the top cover 120.

[0144] The first connecting structure 160 can be a semi-enclosed structure. The first connecting structure 160 is connected to the front side and the left and right sides of the first cover plate 130, and the connection method is stable and reliable.

[0145] Referring to Figures 14 and 15, the first connecting structure 160 may include: a first connecting plate 161, which is in surface contact with and fixedly connected to the top surface of the first cover plate 130.

[0146] The first connecting plate 161 may include a front portion and side portions disposed on the left and right sides of the front portion. The front portion is in surface contact with the front end of the top surface of the first cover plate 130, and the side portions are in surface contact with the left and right ends of the top surface of the first cover plate 130.

[0147] For example, the first connecting plate 161 is bonded to the first cover plate 130, which can both fix the first cover plate 130 and prevent the connection structure of the first cover plate 130 from being exposed and affecting the appearance. For example, the first connecting plate 161 and the first cover plate 130 are snapped together, and the connection method is stable and reliable.

[0148] The first connecting structure 160 may further include a plurality of first connecting members 162, wherein some of the first connecting members 162 connect the first connecting plate 161 and the first smoke guide plate 140, and other first connecting members 162 connect the first connecting plate 161 and the second smoke guide plate 150; there is a gap between adjacent first connecting members 162. The connection method between the first connecting member 162 and the smoke guide plate, and the connection method between the first connecting member 162 and the first connecting plate 161, includes, but is not limited to, snap-fit, screw connection, etc.

[0149] In this embodiment of the application, by setting multiple first connectors 162 to connect the first smoke guide plate 140 and the first connecting plate 161, and to connect the second smoke guide plate 150 and the first connecting plate 161, it helps to improve the stability of the connection between the first connecting structure 160 and the smoke collection hood 20; there is a gap between two adjacent first connectors 162 to reduce the resistance to the flow of oil fumes, so that the oil fumes can smoothly enter the top smoke collection chamber 101.

[0150] Referring to Figures 12 and 13, the smoke hood 20 also includes a second connecting structure 260, through which the second cover plate 230 is connected to the back cover 220.

[0151] The second connecting structure 260 can be ring-shaped, and its connection with the second cover plate 230 is stable and reliable.

[0152] Referring to Figures 16 and 17, the second connecting structure 260 may include a second connecting plate 261, which is annular. The second connecting plate 261 may be a rectangular annular shape.

[0153] The second connecting plate 261 and the second cover plate 230 are in surface contact and fixedly connected. For example, the second connecting plate 261 and the second cover plate 230 are bonded together, a simple connection method. For example, the second connecting plate 261 and the second cover plate 230 are snap-fitted together, a stable connection method.

[0154] The second connecting structure 260 may further include a third connecting plate 262, which is annular; the third connecting plate 262 is a rectangular annular shape. The third connecting plate 262 is parallel to the second connecting plate 261 and is arranged at intervals on the rear side of the second connecting plate 261.

[0155] The outer edge of the third connecting plate 262 is connected to the third smoke guide plate 240 and the fourth smoke guide plate 250 respectively. The connection methods include, but are not limited to, snap-fit ​​and screw connection.

[0156] The second connection structure 260 may also include a plurality of second connectors 263, which are fixedly connected to the second connection plate 261 and the third connection plate 262 respectively, and the plurality of second connectors 263 are arranged at intervals along the circumference of the second connection plate 261.

[0157] In this embodiment, the second connecting structure 260 is provided with an annular second connecting plate 261, which contacts and is fixedly connected to the second cover plate 230, improving the stability of the connection between the second connecting structure 260 and the second cover plate 230. Furthermore, the third connecting plate 262 connects the third smoke guide plate 240 and the fourth smoke guide plate 250 respectively, thus connecting the second connecting structure 260 to the back cover 220. By providing multiple third connecting members, the second connecting plate 261 and the third connecting plate 262 are connected. The second connecting plate 261, the multiple second connecting members 263, and the third connecting plate 262 form a channel communicating with the back smoke inlet 210, restricting and guiding the oil fumes into the back smoke collection chamber 201, helping to reduce smoke leakage.

[0158] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this application, and are not intended to limit them. Although this application has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that modifications can still be made to the technical solutions described in the foregoing embodiments, or equivalent substitutions can be made to some or all of the technical features therein. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

[0159] For ease of explanation, the above description has been provided in conjunction with specific embodiments. However, the above exemplary discussion is not intended to be exhaustive or to limit the embodiments to the specific forms disclosed above. Various modifications and variations can be obtained based on the above teachings. The selection and description of the above embodiments are for the purpose of better explaining the principles and practical applications, thereby enabling those skilled in the art to better utilize the described embodiments and various different variations of embodiments suitable for specific use considerations.

Claims

1. A range hood, characterized in that, include: The ventilation system (10) is configured to drive the oil fumes inside the fume hood (20) to be discharged; The smoke hood (20) includes: a top cover (100) configured to form a top smoke collection cavity (101) and a top smoke inlet (110) communicating with the top smoke collection cavity (101), the top smoke collection cavity (101) communicating with the air duct system (10); the top smoke inlet (110) opening downwards and including: a first smoke inlet portion (111) extending horizontally and formed on the front side of the top cover (100), communicating with the top smoke collection cavity (101); two second smoke inlets (112) respectively formed on both sides of the top cover (100) along the horizontal direction, communicating with the top smoke collection cavity (101); and a back cover (200), located at... The back cover (200) is located on the bottom side of the top cover (100) and connected to the rear side of the top cover (100); the back cover (200) is configured to form a back smoke collection cavity (201) and a back smoke inlet (210), the back smoke collection cavity (201) being connected to the top smoke collection cavity (101); the back smoke inlet (210) is open to the front and includes: a third smoke inlet portion (211), extending along the horizontal direction and formed on the bottom side of the back cover (200), communicating with the back smoke collection cavity (201); two fourth smoke inlets (212), respectively formed on both sides of the back cover (200) along the horizontal direction, and communicating with the back smoke collection cavity (201).

2. The range hood according to claim 1, characterized in that, The front ends of the two second smoking ports (112) are respectively connected to the first smoking port (111); and / or, the bottom ends of the two fourth smoking ports (212) are respectively connected to the third smoking port (211); and / or, the top ends of the two fourth smoking ports (212) are respectively connected to the rear ends of the two second smoking ports (112).

3. The range hood according to claim 1, characterized in that, The top cover (100) includes a top shell (120), which includes a top plate (121), a front side plate (122), a first back plate (123), and two first side plates (124). The top plate (121) is connected to the air duct system (10). The front side plate (122) and the two first side plates (124) are located at the bottom of the top plate (121). The front side plate (122) is connected to the front end of the top plate (121). The two first side plates (124) are located on the top plate (121) along the horizontal direction. The two ends; the first back plate (123) is fixed to the rear end of the top plate (121) and the two first side plate (124); the first cover plate (130) is connected to the top cover (120) and is located below the top plate (121), and the first cover plate (130) is provided with a lighting element; there is a gap between the first cover plate (130) and the front side plate (122) to form the first smoking port (111); there is a gap between the first cover plate (130) and the two first side plate (124) to form two second smoking ports (112).

4. The range hood according to claim 3, characterized in that, The bottom end of the front side plate (122) bends backward to form a first bottom edge (1221), which is spaced from the front end of the first cover plate (130) to form the first smoking port (111); a first smoke guide plate (140) is connected to one end of the first bottom edge (1221) facing the first smoking port (111), which is opposite to and spaced from the front side plate (122); the first smoke guide plate (140) is inclined backward relative to the front side plate (122) from bottom to top.

5. The range hood according to claim 4, characterized in that, The bottom ends of the two first side plate portions (124) bend toward each other to form a second bottom edge portion (1241), which is spaced from the top plate portion (121); the second bottom edge portion (1241) is spaced from the first cover plate (130) to form a second smoke inlet portion (112); a second smoke guide plate (150) is connected to the end of the second bottom edge portion (124) away from the first side plate portion (124), which is opposite to and spaced from the first side plate portion (124); the second smoke guide plate (150) is inclined from bottom to top away from the first side plate portion (124).

6. The range hood according to claim 5, characterized in that, The smoke hood (20) further includes a first connecting structure (160), which includes: a first connecting plate (161) that is in surface contact with and fixedly connected to the top surface of the first cover plate (130); a plurality of first connecting members (162), wherein some of the first connecting members (162) connect the first connecting plate (161) and the first smoke guide plate (140), and other parts of the first connecting members (162) connect the first connecting plate (161) and the second smoke guide plate (150); there is a gap between two adjacent first connecting members (162).

7. The range hood according to claim 1, characterized in that, The back cover (200) includes a back shell (220), which includes a second back panel (221), a bottom plate, and two second side plates (222). The second back panel (221) is fixedly connected to the top cover (100). The bottom plate is fixed to the front side of the bottom end of the second back panel (221), and the two second side plates (222) are respectively fixed to both ends of the second back panel (221) along the horizontal direction. Front side; second cover plate (230), connected to the back cover (220), located in front of the back cover (220), the second cover plate (230) is provided with a control device (232); there is a gap between the second cover plate (230) and the bottom plate to form the third smoke inlet (211); there is a gap between the second cover plate (230) and the two second side plates (222) to form two fourth smoke inlets (212).

8. The range hood according to claim 7, characterized in that, The bottom plate is provided with an oil outlet (2231), and an oil cup (223) is detachably provided below the bottom plate; the front end of the bottom plate is connected to a first front side (224), which is opposite to and spaced from the second back plate (221); there is a gap between the first front side (224) and the second cover plate (230) to form the third smoke inlet (211); an inclined third smoke guide plate (240) is connected to one end of the first front side (224) away from the bottom plate, which is opposite to and spaced from the bottom plate, and the third smoke guide plate (240) is inclined from bottom to top toward the second back plate (221).

9. The range hood according to claim 8, characterized in that, The front ends of the two second side plate portions (222) bend toward each other to form a second front portion (225), which is opposite to and spaced from the second back plate portion (221); the second front portion (225) is spaced from the second cover plate (230) to form the fourth smoke inlet portion (212); a fourth smoke guide plate (250) is connected to one end of the second front portion (225) away from the second side plate portion (222), which is opposite to and spaced from the second side plate portion (222), and the fourth smoke guide plate (250) is inclined relative to the second side plate portion (222) from front to back.

10. The range hood according to claim 9, characterized in that, The smoke hood (20) further includes a second connecting structure (260), which includes: a second connecting plate (261) in an annular shape; the second connecting plate (261) and the second cover plate (230) are in surface contact and fixedly connected; a third connecting plate (262) in an annular shape; parallel to the second connecting plate (261) and spaced apart on the rear side of the second connecting plate (261); the outer edge of the third connecting plate (262) is connected to the third smoke guide plate (240) and the fourth smoke guide plate (250) respectively; and a plurality of second connecting members (263) are fixedly connected to the second connecting plate (261) and the third connecting plate (262) respectively, and the plurality of second connecting members (263) are spaced apart along the circumference of the second connecting plate (261).

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