Range hood

Abstract

This application discloses a range hood, which includes an exhaust module and a connecting pipe. The exhaust module includes a housing, with an air inlet on a side panel. The connecting pipe includes an adapter, which has an air outlet and a flange surrounding the air outlet. The top and side of the flange are connected to the outside of the side panel to surround the air inlet, and the bottom of the flange is inserted into the air inlet to connect to the inside of the side panel. This technical solution, by placing the top and side of the flange outside the side panel, prevents oil from leaking to the outside of the housing through the top and side of the adapter when flowing downwards under gravity. The bottom of the flange is placed inside the housing, allowing oil to be drawn into the housing through the bottom of the flange.

Description

Technical Field

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

[0002] A split-type range hood consists of separate exhaust and smoke collection modules, connected by a connecting pipe to transport cooking fumes. The exhaust module is connected to an exhaust duct to vent the fumes to the outside. In related technologies, the connecting pipe is arranged horizontally and includes an adapter. The adapter connects to the exhaust module, creating an installation seam that allows grease to easily leak to the outside. Summary of the Invention

[0003] This application aims to at least partially solve the technical problems in the related art. To this end, this application proposes a range hood.

[0004] To achieve the above objectives, this application discloses a range hood, the range hood comprising:

[0005] The exhaust module includes a housing, and the side panel of the housing has an air inlet; and

[0006] The connecting pipe includes an adapter, the adapter having an air outlet and a flange surrounding the air outlet, the top and side of the flange being connected to the outside of the side plate to surround the air inlet, and the bottom of the flange being inserted into the air inlet to connect to the inside of the side plate.

[0007] In some embodiments of this application, the air inlet is rectangular.

[0008] In some embodiments of this application, at least a portion of the adapter is tapered from the air outlet and away from the side panel.

[0009] In some embodiments of this application, the exhaust module further includes a baffle disposed within the housing, the baffle being located at the angle between the side plate and the bottom plate of the housing, and the projection of the baffle toward the side plate covering the gap opening between the bottom of the flange edge and the inner side of the side plate.

[0010] In some embodiments of this application, the bottom of the stop is connected to the side plate, and the stop extends from bottom to top across the slot opening.

[0011] In some embodiments of this application, the connection between the bottom of the stop and the side plate is located below the slit opening.

[0012] In some embodiments of this application, the top of the stop is positioned at a distance from the bottom of the flange edge.

[0013] In some embodiments of this application, the space enclosed by the stop and the side plate is open at both ends.

[0014] In some embodiments of this application, the top of the stop is connected to the bottom of the flange edge and the side plate by fasteners.

[0015] In some embodiments of this application, the upper edge of the baffle is lower than the lower edge of the air outlet.

[0016] In some embodiments of this application, the air outlet is smaller than the air inlet, and the air outlet is located within the area enclosed by the air inlet.

[0017] In some embodiments of this application, the edge of the air inlet is flanged away from the adapter.

[0018] In some embodiments of this application, the flange is formed on the top and side of the edge portion of the air inlet.

[0019] In some embodiments of this application, the flange is inclined relative to the flange edge.

[0020] In some embodiments of this application, the angle at which the flange deviates from the flange edge is 45° to 60°.

[0021] The technical solution of this application sets the top and sides of the flange outside the side plate, which can prevent oil from leaking to the outside through the installation seam between the top and sides of the flange and the side plate when the oil flows downward under the action of gravity. The bottom of the flange is set inside the box, and the oil can be introduced into the box through the bottom of the flange.

[0022] Other advantages of this application will be set forth in part in the description which follows, and in part will be obvious from the description or may be learned by practice of this application. Attached Figure Description

[0023] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other designs can be obtained based on the structures shown in these drawings without creative effort.

[0024] Figure 1 These are schematic diagrams of range hoods in some embodiments;

[0025] Figure 2 This is a schematic diagram of the assembly of the exhaust module and adapter in some embodiments;

[0026] Figure 3 This is a schematic diagram of the assembly of the exhaust module and adapter in some embodiments;

[0027] Figure 4 for Figure 2 The structural cross-sectional view shown;

[0028] Figure 5 for Figure 4 Enlarged view marked A in the middle;

[0029] Figure 6 for Figure 4 Enlarged view marked B (black dots in the image represent oil stains);

[0030] Figure 7 A cross-sectional view of the exhaust module and adapter assembly in some embodiments;

[0031] Figure 8 for Figure 7 Enlarged view marked C;

[0032] Figure 9 for Figure 7 Enlarged view marked with D in the middle.

[0033] Explanation of icon numbers:

[0034] Exhaust module 1000;

[0035] 1100 for the enclosure, 1110 for the side panel, 1111 for the air inlet, 1112 for the flange, 1113 for the top flange, 1114 for the left flange, and 1115 for the right flange;

[0036] Base plate 1120;

[0037] Part 1130, bottom 1131, top 1132, space 1133;

[0038] Fastener 1140;

[0039] Connecting pipe 2000, adapter 2100, air outlet 2110, flange edge 2120;

[0040] Top / upper connecting edge 2121, side / left connecting edge 2122, side / right connecting edge 2123, bottom / lower connecting edge 2124, gap opening 2125;

[0041] Smoke collection module 3000.

[0042] The realization of the purpose, functional features and advantages of this application will be further explained in conjunction with the embodiments and with reference to the accompanying drawings. Detailed Implementation

[0043] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of the embodiments. Based on the embodiments of this application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of this application.

[0044] It should be noted that all directional indicators (such as up, down, left, right, front, back, etc.) in the embodiments of this application are only used to explain the relative positional relationship and movement of each component in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicator will also change accordingly.

[0045] In this application, unless otherwise expressly specified and limited, the terms "connection," "fixed," etc., should be interpreted broadly. For example, "fixed" can mean a fixed connection, a detachable connection, or an integral part; it can mean a mechanical connection or an electrical connection; it can mean a direct connection or an indirect connection through an intermediate medium; it can mean the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.

[0046] Furthermore, the use of terms such as "first" and "second" in this application is for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, a feature defined as "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but only on the basis of being achievable by those skilled in the art. If the combination of technical solutions is contradictory or impossible to implement, such a combination of technical solutions should be considered non-existent and not within the scope of protection claimed in this application.

[0047] This application proposes a range hood, which will be described in detail below.

[0048] The range hood includes an exhaust module 1000, a connecting pipe 2000, and a smoke collection module 3000. The main function of the smoke collection module 3000 is to gather and collect cooking fumes. The connecting pipe 2000 facilitates the transmission of cooking fumes, while the main function of the exhaust module 1000 is to create negative pressure, thereby providing the power for the flow of cooking fumes and achieving their extraction. The smoke collection module 3000 forms a hollow cavity, where cooking fumes easily gather and are then conveniently extracted and exhausted by the exhaust module 1000 through the connecting pipe 2000. The exhaust module 1000 includes a fan, which comprises a volute, a impeller housed within the volute, and a motor connected to the impeller. The motor drives the impeller to rotate, thereby creating negative pressure and achieving the extraction of cooking fumes. The smoke collection module 3000 and the exhaust module 1000 are two separate components, connected by a connecting pipe 2000 to transfer the cooking fumes. This means that this type of fume extraction system has a split structure. The exhaust module 1000 can be placed inside the kitchen ceiling, which is a relatively sealed space, effectively minimizing the noise emitted by the exhaust module 1000. This separation of the exhaust module 1000 from the smoke collection module 3000 also frees up front-end space for the smoke collection module 3000, reducing the impact of the exhaust module 1000's size on the overall design of the smoke collection module 3000. It is understood that the cooking fumes referred to in this article are a gaseous mixture produced during cooking, containing air, water vapor, and various organic compounds.

[0049] During the operation of the exhaust module 1000, oil mist particles in the fumes adhere to the structure corresponding to the flow path, forming oil stains. These oil stains tend to move downwards under the influence of gravity. In related technologies, the connecting pipe 2000 is connected to the side of the exhaust module 1000, meaning the connecting pipe 2000 extends laterally, forming an installation seam between the connecting pipe 2000 and the side of the exhaust module 1000. During the flow of oil stains, leakage to the outside is easily achieved through this installation seam. Therefore, improvements are needed. In this embodiment, the cooperation between the exhaust module 1000 and the connecting pipe 2000 prevents oil stain leakage from the installation seam between them.

[0050] Specifically, the exhaust module 1000 includes a housing 1100, which is the component used to house the fan. Therefore, the housing 1100 needs to be a hollow structure to allow the fan to be installed inside. The fan is located inside the housing 1100, and the fan casing is placed horizontally, meaning the axial direction of the casing extends vertically, thus reducing the overall thickness of the exhaust module 1000. The housing 1100 has an air inlet 1111 on its side. The connecting pipe 2000 needs to be connected to the side of the housing 1100 to transport oil fumes into the housing 1100 through the air inlet 1111, where they are then drawn away by the fan. For example, combined with... Figures 1 to 4 As shown, the housing 1100 has a relatively flat polygonal prism structure, including a side plate 1110, a top plate and a bottom plate 1120. The side plate 1110 forms the side of the housing 1100. An air inlet 1111 is provided on the side plate 1110. When the connecting pipe 2000 is connected to the side plate 1110, the oil fumes in the connecting pipe 2000 can be input into the housing 1100 through the air inlet 1111 and then be sucked out by the fan.

[0051] To facilitate the connection between the connecting pipe 2000 and the housing 1100, the connecting pipe 2000 includes an adapter 2100. The adapter 2100 has a structure that connects to the side plate 1110 of the housing 1100, so that the air outlet 2110 of the adapter 2100 and the air inlet 1111 of the side plate 1110 are connected to achieve the transmission of oil fumes. The connection between the adapter 2100 and the side plate 1110 is achieved by setting a flange edge 2120 on the adapter 2100. The flange edge 2120 is set around the air outlet 2110, and the flange edge 2120 of the adapter 2100 is connected to the side plate 1110, thus fixing the adapter 2100 to the side plate 1110. When oil fumes form oil stains on the structure corresponding to the transmission path, the oil stains flow from top to bottom under the action of gravity. To prevent the oil stains from leaking to the outside through the installation seam between the adapter 2100 and the side plate 1110, the sides (2122, 2123) and top 2121 of the flange edge 2120 are connected to the outside of the side plate 1110. The so-called outside is the space enclosed by the housing 1100, and the corresponding inside is the space enclosed by the housing 1100. When the oil stains inside the housing 1100 flow from top to bottom along the inside of the side plate 1110, because the top 2121 and sides (2122, 2123) of the flange edge 2120 are connected to the outside of the side plate 1110, the oil stains will not flow to the installation seam between the top 2121 and sides (2122, 2123) of the flange edge 2120 and the outside of the side plate 1110 and then leak out. When the oil sludge formed in the connecting pipe 2000 flows, it will also flow from top to bottom under the action of gravity. If the oil sludge wants to flow through the installation seam formed between the top 2121 of the flange edge 2120 and the outer side of the side plate 1110, it is equivalent to flowing against the direction of gravity. The installation seam formed between the side (2122, 2123) of the flange edge 2120 and the outer side of the side plate 1110 extends in the vertical direction so that the oil sludge is not easy to cross. In this way, the oil sludge is not easy to leak out through the installation seam formed between the top 2121 of the flange edge 2120 and the side (2122, 2123) and the outer side of the side plate 1110.

[0052] In addition, the bottom 2124 of the flange edge 2120 is connected to the inside of the side plate 1110. Specifically, the bottom 2124 of the flange edge 2120 is inserted into the air inlet 1111, thereby connecting with the inside of the side plate 1110. In this way, the bottom 2124 of the flange edge 2120 covers the lower edge of the air inlet 1111. When the oil flowing along the inside of the side plate 1110 flows to the bottom 2124 of the flange edge 2120, it can be guided into the interior of the housing 1100 by the bottom 2124 of the flange edge 2120. When the oil flowing in the adapter 2100 flows, it will also flow to the bottom 2124 of the flange edge 2120 and be guided into the interior of the housing 1100.

[0053] As can be seen from the above, the technical solution of this application sets the top 2121 and the sides (2122, 2123) of the flange edge 2120 on the outside of the side plate 1110. This can prevent oil stains from leaking to the outside of the box 1100 through the installation seam between the top 2121 and the sides (2122, 2123) of the flange edge 2120 and the outside of the side plate 1110 when the oil flows downward under the action of gravity. The bottom 2124 of the flange edge 2120 is inserted into the air inlet 1111 and located inside the box 1100. Oil stains can be introduced into the box 1100 through the bottom 2124 of the flange edge 2120.

[0054] Optionally, combined Figure 4 As shown, in some embodiments of this application, the air inlet 1111 is set in a rectangular shape. It is understood that the rectangle here is not necessarily an absolute rectangle, but can be an approximate rectangle, such as the four corners of the rectangle forming a rounded transition, or the sides of the rectangle having a certain curvature or inclination. When the air inlet 1111 is rectangular, the air inlet 1111 can be designed to be horizontally arranged, that is, the length direction of the air inlet 1111 extends horizontally. In this way, the air inlet 1111 can be ensured to avoid occupying too much thickness space while ensuring the air intake volume.

[0055] When the air inlet 1111 is designed as a rectangle, the air outlet 2110 of the adapter 2100 is also rectangular to better match the air inlet 1111. Specifically, combined with Figures 4 to 9 As shown, the flange edge 2120 of the adapter 2100 includes an upper connecting edge 2121, a lower connecting edge 2124, a left connecting edge 2122, and a right connecting edge 2123. The upper connecting edge 2121 forms the top 2121 of the flange edge 2120, the left connecting edge 2122 and the right connecting edge 2123 form the sides (2122, 2123) of the flange edge 2120, and the lower connecting edge 2124 forms the bottom 2124 of the flange edge 2120. The upper connecting edge 2121, the left connecting edge 2122, and the right connecting edge 2123 are connected to the outer side of the side panel 1110, specifically to the periphery of the air inlet 1111. The upper connecting edge 2121, the left connecting edge 2122, and the right connecting edge 2123 form an inverted U-shape, surrounding the top and side of the air inlet 1111. The lower connecting edge 2124 is inserted into the air inlet 1111 from the outside to the inside and is connected to the inner side of the side panel 1110, located at the bottom of the air inlet 1111.

[0056] Combination Figure 4As shown, in some embodiments of this application, at least a portion of the adapter 2100 is designed to be gradually tapered, for example, tapering away from the air outlet 2110 and away from the side panel 1110. That is, in the direction of oil fume transmission, at least a portion of the adapter 2100 is gradually widened, and the widened portion terminates at the air outlet 2110. The entire adapter 2100 may be designed with a gradual tapering, or only a portion of the adapter 2100 may be designed with a gradual tapering. Under the suction of the exhaust module 1000, the oil fumes move along the connecting pipe 2000 toward the exhaust module 1000. Because at least a portion of the adapter 2100 is gradually widened in the direction of oil fume transmission, the oil sludge flows better to the bottom 2124 of the flange edge 2120 and is introduced into the housing 1100 under the action of gravity and the movement of the oil fumes. In addition, under the action of the exhaust module 1000, the oil fumes are transmitted at high speed. When they encounter the gradually expanding part of the adapter 2100, the flow rate of the oil fumes is appropriately slowed down, which will reduce the impact on the oil stains and prevent the oil stains from entering the installation seam between the flange edge 2120 and the outer side plate 1110, thus further preventing the leakage of oil stains.

[0057] Due to various constraints, the air inlet 1111 will only occupy a certain size of the side panel 1110, and will not be designed to be almost the same size as the side panel 1110. Therefore, when oil fumes enter the housing 1100 at high speed, vortices are easily formed at the angle between the side panel 1110 and the bottom plate 1120 of the housing 1100. Although the bottom 2124 of the flange edge 2120 is located inside the side panel 1110 to better guide the oil stains into the housing 1100, the turbulence of the vortex may cause the oil stains to leak out from the installation seam between the bottom 2124 of the flange edge 2120 and the inside of the side panel 1110. To prevent this from happening, combined with... Figure 4 , Figure 6 and Figure 7 As shown, in some embodiments of this application, the exhaust module 1000 also has a baffle 1130, which is disposed inside the housing 1100, located at the angle between the bottom plate 1120 and the side plate 1110 of the housing 1100. The baffle 1130 is designed to cover the gap opening 2125 of the installation seam formed between the inner side of the side plate 1110 and the bottom 2124 of the flange edge 2120. It can be understood that the baffle 1130 covers the gap opening 2125 by projecting the baffle 1130 toward the side plate 1110. The projection of the baffle 1130 can cover the gap opening 2125. In this way, even if a vortex is formed at the angle between the side plate 1110 and the bottom plate 1120 of the housing 1100, it will be blocked by the baffle 1130, preventing the vortex from affecting the oil stains and causing the oil stains to leak to the outside through the gap opening 2125.

[0058] Optionally, combined Figure 6As shown, in some embodiments of this application, the bottom 1131 of the stop member 1130 is connected to the side plate 1110. Since the stop member 1130 is located inside the housing 1100, it is connected to the inner side of the side plate 1110. The stop member 1130 extends from the bottom 1131 upwards to pass over the gap opening 2125. This design ensures that the stop member 1130 completely blocks the gap opening 2125. Furthermore, by connecting the bottom 1131 of the stop member 1130 to the side plate 1110, the entire stop member 1130 is closer to the gap opening 2125, further avoiding the influence of eddies generated at the angle between the bottom plate 1120 and the side plate 1110 support.

[0059] Because the bottom 1131 of the stopper 1130 is connected to the side plate 1110, an intersection is formed between the bottom 1131 of the stopper 1130 and the side plate 1110. Oil stains easily accumulate at the intersection between the bottom 1131 of the stopper 1130 and the side plate 1110. To prevent the accumulated oil stains from leaking out through the gap opening 2125 under the action of surface tension, combined with... Figure 6 As shown, in some embodiments of this application, the intersection of the bottom 1131 of the side plate 1110 and the baffle 1130 is designed to be located below the gap opening 2125, that is, at a certain distance from the gap opening 2125. When oil stains accumulate at the intersection of the bottom 1131 of the side plate 1110 and the baffle 1130, the oil stains are not easy to soak into the gap opening 2125, and therefore are not easy to leak out through the gap opening 2125.

[0060] Furthermore, to avoid the formation of an installation seam between the stop 1130 and the bottom 2124 of the flange edge 2120, in some embodiments of this application, combined with Figure 1 As shown, the bottom 2124 of the flange edge 2120 and the top 1132 of the stop 1130 are spaced apart. The so-called spaced apart means that there is a certain distance between the bottom 2124 of the flange edge 2120 and the top 1132 of the stop 1130. In other words, an upward-open space 1133 is formed between the bottom 2124 of the flange edge 2120 and the top 1132 of the stop 1130. Oil stains flow from the bottom 2124 of the flange edge 2120 into this space 1133 and can then flow into the bottom plate 1120 of the housing 1100. If the top 1132 of the stop 1130 and the bottom 2124 of the flange edge 2120 are fitted together, an installation seam will be formed between the top 1132 of the stop 1130 and the bottom 2124 of the flange edge 2120. This installation seam will connect to the gap opening 2125. If oil enters the installation seam, it will continue to leak out through the gap opening 2125 under the action of surface tension. By keeping the top 1132 of the stop 1130 at a certain distance from the bottom 2124 of the flange edge 2120, the oil is prevented from leaking out under the action of surface tension.

[0061] Because the top 1132 of the baffle 1130 is a certain distance from the bottom 2124 of the flange edge 2120, oil can easily enter between the baffle 1130 and the side plate 1110. Therefore, in order to quickly drain this oil and allow it to flow onto the bottom plate 1120 of the housing 1100, optionally, in combination with... Figures 7 to 9 As shown in some embodiments of this application, the space 1133 enclosed by the side panel 1110 and the baffle 1130 is open at both ends. When oil flows into the space 1133 enclosed by the side panel 1110 and the baffle 1130, the oil can flow out from both ends of the space 1133 and fall onto the bottom plate 1120 of the housing 1100, thus preventing accumulation between the side panel 1110 and the baffle 1130. By selecting a baffle 1130 of appropriate size and connecting the baffle 1130 to the side panel 1110, the open space 1133 can be formed without drilling holes in the baffle 1130, reducing structural complexity and cost.

[0062] When the top 1132 of the stop 1130 is a certain distance from the bottom 2124 of the flange edge 2120, the top 1132 of the stop 1130 is essentially suspended in mid-air. Since the stop 1130 is located at the angle between the side plate 1110 and the bottom plate 1120, it is prone to swaying due to eddy currents. If not secured, abnormal noise will occur. Therefore, in conjunction with... Figure 6 As shown, in some embodiments of this application, the stop 1130 is not only connected to the side plate 1110 via its bottom 1131, but also requires the top 1132 of the stop 1130 to be fixed. Since the top 1132 of the stop 1130 needs to extend from bottom to top to pass over the gap opening 2125, the top 1132 of the stop 1130 and the bottom 2124 of the flange edge 2120 are opposite each other. The bottom 2124 of the flange edge 2120 and the side plate 1110 need to be fixed to each other. Based on this, the fastener 1140 simultaneously secures the side plate 1110 and the bottom of the flange edge 2120. The top 1132 of the stop 1130 is fixed to the bottom 2124 of the flange edge 2120 and the side plate 1110. In other words, the top 1132 of the stop 1130 is also fixed based on the fasteners 1140 that fix the bottom 2124 of the flange edge 2120 and the side plate 1110. Thus, it is no longer necessary to design a second fixing scheme for the top 1132 of the stop 1130. The structure is simplified under the premise of effectively fixing the side plate 1110, the bottom 2124 of the flange edge 2120 and the top 1132 of the stop 1130.

[0063] Combination Figure 6As shown, in some embodiments of this application, the lower edge of the air outlet 2110 is designed to be higher than the upper edge of the baffle 1130. This prevents the top 1132 of the baffle 1130 from creating resistance to the transmission of oil fumes, allowing the oil fumes to be drawn away more smoothly by the fan. In addition, since the top 1132 of the baffle 1130 is a certain distance from the bottom 2124 of the flange edge 2120, designing the upper edge of the baffle 1130 to be lower prevents more oil fumes from entering the space 1133 enclosed by the baffle 1130 and the side plate 1110, thereby preventing the formation of small eddies in this space 1133 that could cause oil leakage.

[0064] Combination Figure 5 As shown, in some embodiments of this application, the size of the air outlet 2110 is designed to be smaller than that of the air inlet 1111, and the air outlet 2110 is located within the area enclosed by the air inlet 1111. In other words, when the air inlet 1111 is projected toward the air outlet 2110, the projection of the air inlet 1111 can cover the air outlet 2110. When the air outlet 2110 is projected toward the air inlet 1111, the projection of the air outlet 2110 is located within the edge of the air inlet 1111. In this way, when the fumes pass through the air inlet 1111, the accumulation of oil stains at the edge of the air inlet 1111 can be reduced. Specifically, since the top 2121 and the sides (2122, 2123) of the flange edge 2120 are located outside the side plate 1110, oil stains will accumulate at the top and sides of the edge of the air inlet 1111 when the fumes pass through the air inlet 1111. However, since the bottom 2124 of the flange edge 2120 is inserted into the inner side of the air inlet 1111 and the side plate 1110, oil stains will not accumulate at the bottom of the edge of the air inlet 1111. In this embodiment, the air inlet 1111 is designed to be larger. When the fumes pass through the air inlet 1111 after exiting the air outlet 2110, they are less likely to touch the edge of the air inlet 1111. Specifically, they are less likely to touch the top and side of the edge of the air inlet 1111, thus slowing down the accumulation of grease.

[0065] Optionally, combined Figure 5 , Figure 8 and Figure 9As shown, in some embodiments of this application, the air inlet 1111 is provided with a flange 1112, which is formed on the edge of the air inlet 1111 and extends away from the adapter 2100. As mentioned earlier, by designing the air inlet 1111 to be larger, the degree of oil accumulation at the edge of the air inlet 1111 is reduced. However, it is inevitable that oil will still accumulate at the edge of the air inlet 1111. If oil accumulates at the edge of the air inlet 1111, the oil will easily leak out along the mounting seam formed between the top 2121 and the sides (2122, 2123) of the flange edge 2120 and the outer side of the side plate 1110 under the action of surface tension. In this embodiment, by setting the flange 1112, the oil will accumulate on the flange 1112. Since the flange 1112 is set away from the adapter 2100, that is, away from the flange edge 2120, the oil is kept away from the mounting seam formed between the top 2121 and the sides (2122, 2123) of the flange edge 2120 and the outer side of the side plate 1110, and the oil is less likely to leak out through the mounting seam. Specifically, the flange 1122 includes the top and side of the edge portion of the air inlet 1111, which are respectively the upper flange 1113, the left flange 1114 and the right flange 1115.

[0066] Optionally, continue to combine Figure 5 , Figure 8 and Figure 9 As shown, in some embodiments of this application, the flange 1112 is designed to be inclined relative to the flange edge 2120. Specifically, the upper flange 1113 is inclined relative to the top 2121 of the flange edge 2120. For example, the angle α of the upper flange 1113 relative to the top 2121 of the flange edge 2120 is 45° to 60°. This ensures that oil stains are kept away from the installation seam between the top 2121 of the flange edge 2120 and the outer side of the side plate 1110, preventing oil stains from leaking under the action of surface tension. Similar to the upper flange 1113, the same applies to the left flange 1114 and the right flange 1115. The angle of the left flange 1114 relative to the side 2122 of the flange edge 2120 is also α, and the angle of the right flange 1115 relative to the side 2123 of the flange edge 2120 is also α.

[0067] The above description is merely a preferred embodiment of this application and does not limit the patent scope of this application. Any equivalent structural transformations made based on the concept of this application and the contents of the specification and drawings of this application, or direct / indirect applications in other related technical fields, are included within the patent protection scope of this application.

Claims

1. A range hood, characterized in that, include: The exhaust module includes a housing, and the side panel of the housing has an air inlet; and The connecting pipe includes an adapter, the adapter having an air outlet and a flange surrounding the air outlet, the top and side of the flange being connected to the outside of the side plate to surround the air inlet, and the bottom of the flange being inserted into the air inlet to connect to the inside of the side plate.

2. The range hood as described in claim 1, characterized in that, The air inlet is rectangular.

3. The range hood as described in claim 1, characterized in that, At least a portion of the adapter is tapered from the air outlet and away from the side panel.

4. The range hood as described in claim 1, characterized in that, The exhaust module also includes a baffle located inside the housing. The baffle is located at the angle between the side plate and the bottom plate of the housing, and the projection of the baffle toward the side plate covers the gap opening between the bottom of the flange edge and the inner side of the side plate.

5. The range hood as described in claim 4, characterized in that, The bottom of the stop is connected to the side plate, and the stop extends from bottom to top across the gap opening.

6. The range hood as described in claim 5, characterized in that, The connection between the bottom of the stop and the side plate is located below the gap opening.

7. The range hood as described in claim 5, characterized in that, The top of the stop is positioned at a distance from the bottom of the flange edge.

8. The range hood as described in claim 7, characterized in that, The space enclosed by the stop and the side plate is open at both ends.

9. The range hood as described in claim 7, characterized in that, The top of the stop is connected to the bottom of the flange edge and the side plate by fasteners.

10. The range hood as described in claim 7, characterized in that, The upper edge of the baffle is lower than the lower edge of the air outlet.

11. The range hood as described in claim 1, characterized in that, The air outlet is smaller than the air inlet, and the air outlet is located within the area enclosed by the air inlet.

12. The range hood as described in claim 11, characterized in that, The edge of the air inlet is turned away from the adapter to form a flange.

13. The range hood as described in claim 12, characterized in that, The flange is formed on the top and side of the edge portion of the air inlet.

14. The range hood as described in claim 12, characterized in that, The flange is inclined relative to the flange edge.

15. The range hood as described in claim 14, characterized in that, The angle at which the flange deviates from the flange edge is 45° to 60°.

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