Smoke collecting assembly and range hood

Abstract

The smoke collecting assembly comprises a smoke collecting main body and a smoke gathering main body, a smoke collecting cavity with an opening is defined by the smoke collecting main body, a smoke gathering cavity with a first air inlet is defined by the smoke gathering main body, the smoke gathering cavity is located at the opening, the smoke gathering main body is provided with an extending part extending into the smoke collecting cavity, and the extending part is provided with a second air inlet. A plurality of air inlet holes are formed in the extending part, the smoke gathering cavity is communicated with the smoke collecting cavity through the air inlet holes, and the sum of the areas of the air inlet holes is larger than the area of the first air inlet. The problem that the appearance of the whole machine is affected due to the fact that the first air inlet is too large is solved, meanwhile, the air inlet area is guaranteed, and the air inlet efficiency is effectively guaranteed.

Description

Technical Field

[0001] This utility model relates to the field of range hood technology, specifically to a smoke collection component and a range hood. Background Technology

[0002] As people's living standards improve, their demands for a better kitchen cooking environment are also increasing. Range hoods have become an indispensable kitchen appliance in modern homes. A range hood works by using a motor to drive an impeller at high speed, creating a negative pressure zone near the smoke collection chamber. This pressure draws cooking fumes into the machine through the air inlet and exhausts them outdoors.

[0003] Existing range hoods typically include top-mounted, side-mounted, and dual-mounted (top and side) range hoods. Top-mounted range hoods usually only include an upper smoke collection chamber, with air intake primarily from the top inlet. Side-mounted range hoods typically only include a side smoke collection chamber, with air intake primarily from the side inlet. Dual-mounted range hoods typically include an upper and lower smoke collection chamber, connected in a "7" shape, with air intake primarily from the lower inlet and supplemented by an upper inlet. However, an excessively large inlet affects the overall appearance of the machine, while an excessively small inlet affects the smoke extraction efficiency. Therefore, to ensure the smoke extraction efficiency, the impeller speed is usually increased, which increases the load and leads to noise and other problems. Utility Model Content

[0004] In order to at least partially solve the problems existing in the prior art, according to one aspect of the present invention, a smoke collection assembly is provided, the technical solution of which is as follows.

[0005] The smoke collection assembly includes a smoke collection body and a smoke gathering body. The smoke collection body encloses and forms a smoke collection cavity with an opening, and the smoke gathering body encloses and forms a smoke gathering cavity with a first air inlet. The smoke gathering cavity is located at the opening. The smoke gathering body has an extension portion that extends into the smoke collection cavity. Multiple air inlets are provided on the extension portion. The smoke gathering cavity is connected to the smoke collection cavity through the air inlets. The sum of the areas of the multiple air inlets is greater than the area of ​​the first air inlet.

[0006] The smoke collection assembly of this utility model forms a smoke collection cavity by enclosing a smoke collection body, and multiple air inlets are provided on the extended part of the smoke collection body. The smoke collection cavity is connected to the smoke collection cavity through the air inlets, and the sum of the areas of the multiple air inlets is greater than the area of ​​the first air inlet, which avoids the problem of the first air inlet being too large and affecting the appearance of the whole machine, while ensuring the air intake area and effectively ensuring the air intake efficiency.

[0007] For example, the smoke collection body has a top body, a bottom body, and a back plate. The back plate is disposed on the mounting surface, the top body is connected to the top of the back plate, and the bottom body is disposed opposite to the top body, with an opening disposed on the bottom body. The smoke collection body also has a top panel, which is fixedly connected to the bottom body and covers at least part of the opening. The portion of the opening not covered by the top panel forms a first air inlet. In this way, on the one hand, the top panel can cover the opening, avoiding the problem of an excessively large first air inlet causing an unsightly appearance; on the other hand, while keeping the size of the first air inlet observable to the user unchanged, the air intake area is increased, improving air intake efficiency; furthermore, the top panel can block oil fumes, thereby accelerating the flow rate of oil fumes near the top panel, further improving air intake efficiency.

[0008] For example, the extending portion bends and extends from the bottom body towards the top body; or, the smoke-collecting body has a connecting portion, which is fixedly connected to the bottom body or the top panel, and the extending portion bends and extends from the connecting portion towards the top body. When the extending portion bends and extends from the bottom body towards the top body, the extending portion can be formed by stretching the bottom body towards the top body, thus the extending portion and the bottom body are an integral structure, which is convenient for processing and molding; when the extending portion has a connecting portion, the extending portion and the bottom body are separate structures.

[0009] For example, a flap is rotatably connected to the end of the bottom body away from the top panel, and the first air inlet is opened or closed by the flap. In this way, when the first air inlet is closed, the flap can block the first air inlet; when the first air inlet is open, the flap can collect the fumes, preventing the fumes from escaping from above and improving the air intake efficiency.

[0010] For example, the extended portion has a top wall and side walls, and the air inlet includes a first air inlet on the top wall and a second air inlet on the side wall. In this way, the air intake state is changed from planar air intake to three-dimensional air intake, increasing the air intake area and improving air intake efficiency while keeping the size of the first air inlet visible to the user unchanged.

[0011] For example, the sidewall includes a first sidewall and a second sidewall, the first sidewall being opposite to the second sidewall, the second sidewall being further away from the back panel than the first sidewall, and the first sidewall having a first angle α with the plane containing the bottom body, where α > 90°. Setting the first angle α within this range allows the area of ​​the first sidewall to be larger, thereby increasing the air intake area and improving air intake efficiency.

[0012] For example, the sidewall includes a first sidewall and a second sidewall, the first sidewall being opposite to the second sidewall, the second sidewall being further away from the back panel than the first sidewall, and the second sidewall having a second angle β between it and the plane containing the bottom body, where β > 90°. Setting the second angle β within this range allows the area of ​​the second sidewall to be larger, thereby increasing the air intake area and improving air intake efficiency.

[0013] For example, along the length of the smoke collection body, the opening not covered by the top panel has a second length L2, where 120mm ≤ L2 ≤ 160mm. The second length L2 is set within this range, effectively ensuring the efficient air intake of the fumes into the smoke collection chamber through the first air inlet.

[0014] For example, in the width direction of the smoke collection body, the opening has a width D, where 0.8L2≤D≤L2. When the width D and the second length L2 have this relationship, the air intake efficiency of the oil fumes entering the smoke collection chamber through the first air inlet is effectively guaranteed.

[0015] For example, in the length direction of the smoke collection body, the opening covered by the top panel has a third length L3, 30mm≤L3. The third length L3 is set within this range, which effectively increases the air intake area and improves the air intake efficiency while keeping the size of the first air intake that can be observed by the user unchanged.

[0016] For example, along the length of the smoke collection body, the opening not covered by the top panel has a second length L2, and the top wall has a fourth length L4, where L2 ≤ L4 ≤ 1.2L2. When the fourth length L4 and the second length L2 have this relationship, the area of ​​the side wall and the top wall can be maximized, thereby ensuring the size of the air intake area and ensuring air intake efficiency.

[0017] For example, the smoke collection chamber has a depth H, 20mm≤H. Within this depth range, the area of ​​the sidewall can be maximized, thereby ensuring the size of the air intake area and the air intake efficiency. It also allows the smoke collection chamber to change the path of the oil fumes as much as possible, thereby improving the air intake efficiency. At the same time, the thickness of the smoke collection body is also controlled, making the overall shape of the machine slimmer.

[0018] For example, there are two smoke collection chambers, which are respectively located at both ends of the bottom body and separated by an isolation part along the length of the smoke collection body. In this way, the negative pressure zone in the middle of the smoke collection chamber can be transferred to both ends of the smoke collection chamber, preventing oil fumes from escaping from both ends of the smoke collection body, thereby improving the air intake efficiency.

[0019] For example, the smoke collection body has a front plate, which is disposed opposite to a back plate. A bottom body is connected to the upper end of the front plate. The smoke collection chamber includes a first chamber and a second chamber. The first chamber is formed between the front plate and a portion of the back plate, and the second chamber is formed between the bottom body and the top body. In this way, the first and second chambers cooperate to form a three-dimensional smoke extraction area, allowing the fumes to be absorbed multiple times during their ascent, reducing the dispersion of fumes and thus improving air intake efficiency.

[0020] For example, there is a first distance M1 between the end of the top body away from the front plate and the end of the bottom body away from the front plate, where M1 ≤ 60 mm. The first distance M1 is set within this range, which effectively reduces the thickness of the second cavity and reduces the space occupied by the smoke collection body.

[0021] For example, a second air inlet is formed at the end of the front panel away from the bottom body. In this way, as the fumes rise, they can be absorbed by the second air inlet first, improving air intake efficiency.

[0022] For example, there is a second distance M2 between the end of the front plate away from the bottom body and the end of the back plate away from the bottom body, where M2 ≤ 50 mm. The second distance M2 is set within this range, which effectively reduces the thickness of the first cavity and reduces the space occupied by the smoke collection body.

[0023] According to another aspect of this utility model, a range hood is provided, including a fan assembly and a smoke collection assembly as described above, wherein the smoke collection assembly is disposed below the fan assembly. Since the smoke collection assembly described above has the aforementioned beneficial effects, the range hood including the smoke collection assembly described above also has the aforementioned beneficial effects, which will not be elaborated further here.

[0024] This utility model description introduces a series of simplified concepts, which will be further explained in detail in the detailed description section. This utility model description is not intended to limit the key features and essential technical features of the claimed technical solution, nor is it intended to determine the scope of protection of the claimed technical solution.

[0025] The advantages and features of this utility model will be described in detail below with reference to the accompanying drawings. Attached Figure Description

[0026] The following drawings, which are incorporated herein by reference as part of this invention, are provided for understanding the invention. The drawings illustrate embodiments of the invention and their descriptions, serving to explain the principles of the invention. In the drawings,

[0027] Figure 1 A perspective view of a range hood (with the flap closed) as an exemplary embodiment of the present invention;

[0028] Figure 2 for Figure 1 A 3D view of a range hood with its flap open;

[0029] Figure 3 for Figure 1 A cross-sectional view of a range hood with the flap open;

[0030] Figure 4 for Figure 1A cross-sectional view of the smoke collection assembly with the flap in the open position;

[0031] Figure 5 for Figure 4 Enlarged view of section A;

[0032] Figure 6 for Figure 1 A partial cross-sectional view of the smoke collection assembly;

[0033] Figure 7 for Figure 1 A three-dimensional diagram showing the combination of the bottom body and the extended part.

[0034] The above figures include the following reference numerals:

[0035] 1. Range hood; 10. Smoke collection assembly; 110. Smoke collection body; 1101. Opening; 111. Smoke collection chamber; 1111. First chamber; 1112. Second chamber; 112. Top body; 113. Bottom body; 1131. Isolation part; 1132. Clearance hole; 114. Back panel; 115. Front panel; 116. Second air inlet; 120. Smoke collection body; 1201. First air inlet; 121. Smoke collection chamber; 122. Extension part; 1221. Top wall; 1222. Side wall; 1222a. First side wall; 1222b. Second side wall; 123. Air inlet hole; 1231. First air inlet hole; 1232. Second air inlet hole; 124. Top panel; 130. Flip panel; 140. Connecting rod; 20. Fan assembly. Detailed Implementation

[0036] In the following description, numerous details are provided to enable a thorough understanding of the present invention. However, those skilled in the art will appreciate that the following description merely illustrates preferred embodiments of the present invention, which may be practiced without one or more of these details. Furthermore, to avoid confusion with the present invention, some technical features well-known in the art have not been described in detail.

[0037] To fully understand the embodiments of this utility model, a detailed structure will be presented in the following description. Obviously, the implementation of the embodiments of this utility model is not limited to the specific details familiar to those skilled in the art. Preferred embodiments of this utility model are described in detail below; however, in addition to these detailed descriptions, this utility model may have other embodiments.

[0038] This utility model provides a smoke collection assembly. The smoke collection assembly provided by this utility model can be applied to range hoods. The following will describe in detail one embodiment of the smoke collection assembly according to the accompanying drawings.

[0039] See also Figures 1 to 7 The smoke collection assembly 10 may include a smoke collection body 110 and a smoke gathering body 120. The smoke collection body 110 may enclose a smoke collection cavity 111 with an opening 1101. The smoke gathering body 120 may enclose a smoke gathering cavity 121 with a first air inlet 1201. The smoke gathering cavity 121 may be located at the opening 1101. The smoke gathering body 120 may have an extension portion 122 extending into the smoke collection cavity 111. The extension portion 122 may be provided with a plurality of air inlets 123. The smoke gathering cavity 121 may communicate with the smoke collection cavity 111 through the air inlets 123. The sum of the areas of the plurality of air inlets 123 may be greater than the area of ​​the first air inlet 1201.

[0040] The smoke collection assembly 10 of this utility model forms a smoke collection cavity 121 by enclosing a smoke collection body 120. Multiple air inlets 123 are provided on the extension portion 122 of the smoke collection body 120. The smoke collection cavity 121 is connected to the smoke collection cavity 111 through the air inlets 123. The sum of the areas of the multiple air inlets 123 is greater than the area of ​​the first air inlet 1201, which avoids the problem that the first air inlet 1201 is too large and affects the appearance of the whole machine. At the same time, it ensures the air intake area and effectively ensures the air intake efficiency.

[0041] It should be noted that the air intake area refers to the area through which cooking fumes can pass when entering the smoke collection chamber 111 from the smoke collection chamber 121, that is, the total area of ​​the multiple air intake holes 123. Understandably, the larger the air intake area, the smoother the air intake and the higher the air intake efficiency.

[0042] See also Figures 3 to 5 The smoke collection body 110 may have a top body 112, a bottom body 113, and a back plate 114. The back plate 114 may be disposed on a mounting surface. The top body 112 may be connected to the top of the back plate 114. The bottom body 113 may be disposed opposite to the top body 112, and an opening 1101 may be disposed on the bottom body 113. The smoke collection body 120 may have a top panel 124. The top panel 124 may be fixedly connected to the bottom body 113 and covers at least part of the opening 1101. The portion of the opening 1101 not covered by the top panel 124 may form a first air inlet 1201. The top panel 124 may be fixedly connected to the bottom body 113 by adhesive, snap-fit, threaded connection, or other suitable means. Thus, on the one hand, the top panel 124 can cover the opening 1101, avoiding the problem of the first air inlet 1201 being too large and unsightly; on the other hand, while keeping the size of the first air inlet 1201 that can be observed by the user unchanged, the air intake area is increased and the air intake efficiency is improved; furthermore, the top panel 124 can block the oil fumes, thereby accelerating the flow rate of oil fumes near the top panel 124, further improving the air intake efficiency.

[0043] It should be noted that the installation surface can be a wall, cabinet wall, etc.

[0044] See again Figures 3 to 5 In one embodiment of the present invention, the extension portion 122 bends and extends from the bottom body 113 toward the top body 112. The extension portion 122 can be stretched from the bottom body 113 toward the top body 112 to form the extension portion 122. Thus, the extension portion 122 and the bottom body 113 are an integral structure, which is convenient for processing and forming.

[0045] In an embodiment not shown, the smoke-collecting body 120 may have a connecting portion, which is fixedly connected to the bottom body 113 or the top panel 124. The extending portion 122 extends from the connecting portion toward the top body 112. Thus, the extending portion 122 and the bottom body 113 are separate structures. Specifically, the connecting portion and the extending portion 122 may be an integral structure. The extending portion 122 may be fixedly connected to the bottom body 113 through the connecting portion. The connecting portion and the top panel 124 may be located on opposite sides of the bottom body 113, respectively. Thus, during installation, the smoke-collecting body 120 is installed in stages. The assembly consisting of the connecting portion and the extending portion 122 extends into the smoke-collecting cavity 111 and is connected to the bottom body 113 and the connecting portion by bonding, snap-fitting, threaded connection or other suitable methods. Then, the top panel 124 is connected to the bottom body 113 so that the top panel 124 and the extending portion 122 enclose a smoke-collecting cavity 121 with a first air inlet 1201. Alternatively, the connecting part and the extending part 122 can be an integral structure. The extending part 122 is fixedly connected to the top panel 124 through the connecting part, so that the top panel 124 and the extending part 122 enclose a smoke collecting chamber 121 with a first air inlet 1201. In this way, during installation, the entire smoke collecting body 120 forms an assembly, the extending part 122 extends into the smoke collecting chamber 111 through the opening 1101, and is then fixedly connected to the bottom body 113 through the top panel 124 to fix the smoke collecting body 120. In this case, the smoke collecting body 120 can be detachable from the smoke collecting body 110.

[0046] See also Figures 1 to 5 A flap 130 is rotatably connected to the end of the bottom body 113 away from the top panel 124. The first air inlet 1201 can be opened or closed via the flap 130. Thus, when the first air inlet 1201 is closed, the flap 130 can block it; when the first air inlet 1201 is open, the flap 130 can collect the fumes, preventing them from escaping from above and improving air intake efficiency. Specifically, to avoid obstructing the user's view when the flap 130 is open, and to prevent interference or collision between the flap 130 and the cookware, thus affecting the user experience, the width dimension of the flap 130 (i.e., ...) is... Figure 4 The L5 in the middle should not be too large.

[0047] See Figure 3The flap 130 can be rotatably connected to the bottom body 113 via a connecting rod 140. Specifically, the connecting rod 140 can be located in the middle of the flap 130, thus ensuring the stability of the flap 130 during rotation. Furthermore, a clearance hole 1132 can be provided on the bottom body 113. The connecting rod 140 can pass through the clearance hole 1132 to connect with the flap 130, so as to avoid interference between the connecting rod 140 and other components.

[0048] In an embodiment not shown, the flap 130 can be rotatably connected to the end of the bottom body 113 away from the top panel 124 via a motor assembly. This makes the rotation of the flap 130 relative to the bottom body 113 more convenient, and allows for precise control of the speed and angle of the flap 130's rotation, improving the user experience.

[0049] See also Figures 3 to 7 The extended portion 122 may have a top wall 1221 and a side wall 1222. The air inlet 123 may include a first air inlet 1231 disposed on the top wall 1221 and a second air inlet 1232 disposed on the side wall 1222. In this way, the air intake state is changed from planar air intake to three-dimensional air intake. While the size of the first air inlet 1201 visible to the user remains unchanged, the air intake area is increased and the air intake efficiency is improved. Specifically, the first air inlet 1231 may be constructed as an array of wheat ear-shaped mesh holes, which improves the air guiding effect of the first air inlet 1231 and also enhances the oil guiding effect of the top wall 1221. The second air inlet 1232 may be constructed as an elongated waist-shaped hole, which facilitates the processing of the second air inlet 1232 while ensuring air intake efficiency and the structural strength of the side wall 1222. Of course, the first air inlet 1231 and the second air inlet 1232 may also be constructed as other shapes.

[0050] See also Figure 3 , Figure 4 , Figure 5 and Figure 7 The sidewall 1222 may include a first sidewall 1222a and a second sidewall 1222b. The first sidewall 1222a may be opposite to the second sidewall 1222b. The second sidewall 1222b may be further away from the backplate 114 than the first sidewall 1222a. The first sidewall 1222a and the plane containing the bottom body 113 may have a first angle α, where α > 90°. For example, the first angle α may be 95°, 110°, 127°, etc. Setting the first angle α within this range allows the area of ​​the first sidewall 1222a to be larger, thereby increasing the air intake area and improving the air intake efficiency.

[0051] See again Figure 3 , Figure 4 , Figure 5 and Figure 7The sidewall 1222 may include a first sidewall 1222a and a second sidewall 1222b. The first sidewall 1222a may be opposite to the second sidewall 1222b. The second sidewall 1222b may be further away from the backplate 114 than the first sidewall 1222a. The second sidewall 1222b and the plane containing the bottom body 113 may have a second angle β, where β > 90°. For example, the second angle β may be 95°, 110°, 127°, etc. Setting the second angle β within this range allows the area of ​​the second sidewall 1222b to be larger, thereby increasing the air intake area and improving the air intake efficiency.

[0052] See also Figure 4 , Figure 5 and Figure 7 In the length direction of the smoke collection body 110 (i.e. Figure 6 In the X direction (as shown in the diagram), the portion of the opening 1101 not covered by the top panel 124 can have a second length L2, where 120mm ≤ L2 ≤ 160mm. For example, the second length L2 can be 120mm, 145mm, 160mm, etc. Setting the second length L2 within this range effectively ensures the air intake efficiency of the fumes entering the smoke collection chamber 121 through the first air inlet 1201. In some embodiments, the second length L2 is 140mm. In this case, the air intake efficiency of the fumes entering the smoke collection chamber 121 through the first air inlet 1201 is effectively ensured, and the problem of the opening 1101 covered by the top panel 124 being too large and affecting the overall appearance of the machine is avoided.

[0053] See also Figures 4 to 7 In the width direction of the smoke collection body 110 (i.e. Figure 7 In the Y direction (as shown in the diagram), the opening 1101 can have a width D, where 0.8L2 ≤ D ≤ L2. For example, the width D can be 0.8L2, 0.9L2, L2, etc. When the width D and the second length L2 have this relationship, the air intake efficiency of the fumes entering the smoke collection chamber 121 through the part of the opening 1101 not covered by the top panel 124 is effectively guaranteed. In some embodiments, the width D is L2, in which case the basic air intake area can be larger, and the fumes enter the smoke collection chamber 121 more smoothly through the part of the opening 1101 not covered by the top panel 124, thereby increasing the air intake efficiency.

[0054] It should be noted that the basic air intake area refers to the area through which cooking fumes can pass when entering the smoke collection chamber 121 from the outside, that is, the area of ​​the opening 1101 not covered by the top panel 124, i.e., the area of ​​the first air intake 1201. The basic air intake area is set as S1, where S1 = L2 × D.

[0055] See also Figure 4 , Figure 5 and Figure 7 In the length direction of the smoke collection body 110 (i.e. Figure 6In the X direction, the opening 1101 covered by the top panel 124 can have a third length L3, 30mm ≤ L3. For example, the third length L3 can be 30mm, 45mm, or 57mm. Setting the third length L3 within this range effectively increases the air intake area and improves air intake efficiency while keeping the size of the user-observable first air intake 1201 unchanged. Understandably, while keeping the size of the user-observable first air intake 1201 unchanged, the multiple air intake holes 123 provided on the portion extending into the top panel 124 that is covered by the top panel 124 increase the air intake area, thereby improving air intake efficiency.

[0056] See again Figure 4 , Figure 5 and Figure 7 Along the length of the smoke collection body 110, the opening 1101 not covered by the top panel 124 can have a second length L2, and the top wall 1221 can have a fourth length L4, where L2 ≤ L4 ≤ 1.2L2. For example, the fourth length L4 can be L2, 1.1L2, 1.2L2, etc. When the fourth length L4 and the second length L2 have this relationship, the area of ​​the side wall 1222 and the top wall 1221 can be maximized, thereby ensuring the size of the air intake area and ensuring air intake efficiency.

[0057] Specifically, see Figures 5 to 7 In the length direction of the smoke collection body 110 (i.e. Figure 6 In the X direction (as shown in the image), the opening 1101 can have a first length L1. Understandably, L1 = L2 + L3. The first length L1 can be no less than a fourth length L4, so that the smoke collection cavity 121 can be constructed as a U-shaped groove. This structure ensures that the air intake area is increased while the size of the first air inlet 1201 that can be observed by the user remains unchanged, thereby improving the air intake efficiency.

[0058] See Figure 5 and Figure 6 The smoke collection chamber 121 can have a depth H, 20mm ≤ H. For example, the depth H can be 20mm, 35mm, 41mm, etc. Within this range, the area of ​​the side wall 1222 can be maximized, thereby ensuring the size of the air intake area and the air intake efficiency. It also allows the smoke collection chamber 121 to change the path of the oil fumes as much as possible, thereby improving the air intake efficiency. At the same time, the thickness of the smoke collection body 120 is also controlled, making the overall shape of the machine slimmer.

[0059] Understandably, the top wall 1221 and side wall 1222 can have a total area, i.e., an unfolded area. The larger the unfolded area, the more air inlets 123 can be provided on the top wall 1221 and side wall 1222, and the larger the air inlet area. Let the unfolded area be S2, where S2 = L4 × D + 2L4 × h + 2L × h (i.e., the area of ​​the top wall 1221 + the total area of ​​the side wall 1222). Specifically, openings can be made in 2 / 3 of the unfolded area S2, and the air inlet area is set as S3, i.e., S3 = 2 / 3S2. At this time, the air inlet area S3 can be as large as possible while ensuring the structural strength of the top wall 1221 and side wall 1222.

[0060] In some embodiments, the width D can be L2, the fourth width D4 can be L2, and the depth H can be 20mm. In this case, S1 = L2. 2 S3 = 2 / 3S2 = (L2) 2 +2L2×20mm+2L2×20mm)=L2×160mm, and since 120mm≤L2≤160mm, S1≤S3. Thus, the air intake area S3 is greater than the basic air intake area S1, ensuring air intake efficiency while also reducing the load.

[0061] See also Figure 2 , Figure 6 and Figure 7 There can be two smoke collection chambers 121. Along the length of the smoke collection body 110, the two smoke collection chambers 121 can be respectively located at both ends of the bottom body 113 and separated by an isolation portion 1131. In this way, the isolation portion 1131 can transfer the negative pressure zone in the middle of the smoke collection chamber 111 to both ends of the smoke collection chamber 111, preventing oil fumes from escaping from both ends of the smoke collection body 110, thereby improving air intake efficiency. Specifically, an avoidance hole 1132 can be provided on the isolation portion 1131.

[0062] For example, see Figure 5 and Figure 6 The number of smoke collecting bodies 120 can be two, and the two smoke collecting bodies 120 can be respectively set at both ends of the bottom body 113. At this time, an isolation part 1131 can be provided on the bottom body 113.

[0063] In an embodiment not shown, the number of smoke-collecting bodies 120 can be one. In this case, the smoke-collecting body 120 can enclose two smoke-collecting cavities 121, which can be respectively disposed at both ends of the smoke-collecting body 120, thus allowing the two smoke-collecting cavities 121 to be respectively disposed at both ends of the bottom body 113. Based on the smoke-collecting body 120 enclosing the two smoke-collecting cavities 121, an isolation portion 1131 can be provided on the smoke-collecting body 120. Specifically, the isolation portion 1131 can be provided on the smoke-collecting body 120, or it can be provided on both the smoke-collecting body 120 and the bottom body 113.

[0064] See also Figures 1 to 4 The smoke collection body 110 may have a front panel 115. The front panel 115 may be disposed opposite to the back panel 114. The bottom body 113 may be connected to the upper end of the front panel 115. The smoke collection chamber 111 may include a first chamber 1111 and a second chamber 1112. The first chamber 1111 may be formed between the front panel 115 and a portion of the back panel 114. The second chamber 1112 may be formed between the bottom body 113 and the top body 112. The second chamber 1112 is located above the first chamber 1111, and the first chamber 1111 and the second chamber 1112 may communicate to form a 7-shaped smoke collection chamber. In this way, the first chamber 1111 and the second chamber 1112 cooperate with each other to form a three-dimensional smoke extraction area, so that the fumes can be absorbed multiple times during the rising process, reducing the dispersion of fumes and thus improving the air intake efficiency. The smoke collection assembly 10 can be applied to a top-side dual-suction range hood.

[0065] In an embodiment not shown, the top body 112 may be connected to the top end of the back plate 114. The bottom body 113 may be disposed opposite to the top body 112 and connected to the bottom end of the back plate 114. The front plate 115 may be disposed opposite to the back plate 114 and connected between the top body 112 and the bottom body 113. Thus, the smoke collection chamber 111 may be formed by the top body 112, the bottom body 113, the back plate 114, and the front plate 115. The smoke collection assembly 10 can then be applied to a top-mounted or side-mounted range hood.

[0066] See also Figure 3 and Figure 4 A first distance M1 can be provided between the end of the top body 112 away from the front plate 115 and the end of the bottom body 113 away from the front plate 115, where M1 ≤ 60 mm. For example, the first distance M1 can be 60 mm, 55 mm, 47 mm, etc. Setting the first distance M1 within this range effectively reduces the thickness of the second cavity 1112 and reduces the space occupied by the smoke collection body 110.

[0067] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 A second air inlet 116 can be formed at the end of the front panel 115 away from the bottom body 113. In this way, as the fumes rise, they can be absorbed by the second air inlet 116 first, improving air intake efficiency. Specifically, the second air inlet 116 can be constructed in a long strip shape, which facilitates the processing of the second air inlet 116 while ensuring its air intake efficiency. Of course, the second air inlet 116 can also be constructed in other structures.

[0068] See again Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 6 A second distance M2 may be provided between the end of the front plate 115 away from the bottom body 113 and the end of the back plate 114 away from the bottom body 113, where M2 ≤ 50 mm. For example, the second distance M2 can be 50 mm, 35 mm, 27 mm, etc. Setting the second distance M2 within this range effectively reduces the thickness of the first cavity 1111 and reduces the space occupied by the smoke collection body 110.

[0069] Understandably, by using the first air inlet 1201 as the main air inlet and the second air inlet 116 as the auxiliary air inlet, and by setting the smoke collection body 120 on the bottom body 113, the internal space of the smoke collection assembly 10 is fully utilized, the thickness of the second cavity 1112 (i.e., the first distance M1) and the thickness of the first cavity 1111 (i.e., the second distance M2) are effectively reduced, the smoke collection assembly 10 is made thinner, the space occupied by the smoke collection assembly 10 is reduced, and the user experience is improved.

[0070] According to another aspect of the present invention, a range hood 1 is provided, including a fan assembly 20 and a smoke collection assembly 10 as described above. The smoke collection assembly 10 may be disposed below the fan assembly 20. Since the smoke collection assembly 10 described above has the aforementioned beneficial effects, the range hood 1 including the smoke collection assembly 10 described above also has the aforementioned beneficial effects, which will not be elaborated further here.

[0071] In the description of this utility model, it should be understood that the directional terms such as "front", "rear", "up", "down", "left", "right", "horizontal", "vertical", "horizontal", "top", and "bottom" indicate the orientation or positional relationship, which are usually based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description. Unless otherwise stated, these directional terms do not indicate or imply that the device or element referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation on the scope of protection of this utility model. The directional terms "inner" and "outer" refer to the inner and outer contours of each component itself.

[0072] For ease of description, relative terms such as "above," "over," "on the upper surface of," and "above" are used here to describe the regional positional relationship of one or more components or features shown in the figures to other components or features. It should be understood that relative terms include not only the orientation of the component as depicted in the figure but also different orientations during use or operation. For example, if the components in the figures are inverted as a whole, "above" or "above other components or features" will include cases where the component is "below" or "under" other components or features. Thus, the exemplary term "above" can include both "above" and "below." Furthermore, these components or features may also be positioned at other different angles (e.g., rotated 90 degrees or other angles), and this document intends to include all such cases.

[0073] It should be noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the exemplary embodiments according to this application. As used herein, the singular form is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, it should be understood that when the terms "comprising" and / or "including" are used in this specification, they indicate the presence of features, steps, operations, parts, components, and / or combinations thereof.

[0074] It should be noted that the terms "first," "second," etc., used in the specification, claims, and accompanying drawings of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence. It should be understood that such data can be interchanged where appropriate so that the embodiments of this application described herein can be implemented in sequences other than those illustrated or described herein.

[0075] This utility model has been described through the above embodiments. However, it should be understood that the above embodiments are for illustrative purposes only and are not intended to limit the utility model to the described embodiments. Furthermore, those skilled in the art will understand that this utility model is not limited to the above embodiments, and many more variations and modifications can be made based on the teachings of this utility model, all of which fall within the scope of protection claimed by this utility model. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A smoke collection assembly, characterized in that, include: The smoke collecting body is enclosed to form a smoke collecting cavity with an opening; as well as The smoke collecting body is enclosed to form a smoke collecting cavity with a first air inlet, and the smoke collecting cavity is located at the opening; The smoke collecting body has an extension portion that extends into the smoke collecting chamber. The extension portion is provided with multiple air inlets. The smoke collecting chamber is connected to the smoke collecting chamber through the air inlets. The sum of the areas of the multiple air inlets is greater than the area of ​​the first air inlet.

2. The smoke collection assembly according to claim 1, characterized in that, The smoke collection body has a top body, a bottom body, and a back plate. The back plate is disposed on the mounting surface, the top body is connected to the top of the back plate, the bottom body is disposed opposite to the top body, and the opening is disposed on the bottom body. The smoke collection body has a top panel, which is fixedly connected to the bottom body and covers at least part of the opening. The part of the opening not covered by the top panel forms the first air inlet.

3. The smoke collection assembly according to claim 2, characterized in that, The extended portion bends and extends from the bottom body toward the top body; or, the smoke collection body has a connecting portion, the connecting portion is fixedly connected to the bottom body or the top panel, and the extended portion bends and extends from the connecting portion toward the top body.

4. The smoke collection assembly according to claim 2, characterized in that, The bottom body is rotatably connected to a flap at the end away from the top panel, and the first air inlet is opened or closed by the flap.

5. The smoke collection assembly according to claim 2, characterized in that, The extended portion has a top wall and a side wall, and the air inlet includes a first air inlet provided on the top wall and a second air inlet provided on the side wall.

6. The smoke collection assembly according to claim 5, characterized in that, The sidewall includes a first sidewall and a second sidewall, the first sidewall being opposite to the second sidewall, the second sidewall being further away from the back plate than the first sidewall, and the first sidewall having a first angle α between itself and the plane containing the bottom body, where α > 90°.

7. The smoke collection assembly according to claim 5, characterized in that, The sidewall includes a first sidewall and a second sidewall, the first sidewall being opposite to the second sidewall, the second sidewall being further away from the back plate than the first sidewall, and the second sidewall having a second angle β between itself and the plane containing the bottom body, where β > 90°.

8. The smoke collection assembly according to claim 2, characterized in that, Along the length of the smoke collection body, the portion of the opening not covered by the top panel has a second length L2, 120mm≤L2≤160mm.

9. The smoke collection assembly according to claim 8, characterized in that, In the width direction of the smoke collection body, the opening has a width D, where 0.8L2≤D≤L2.

10. The smoke collection assembly according to claim 8, characterized in that, Along the length of the smoke collection body, the portion of the opening covered by the top panel has a third length L3, where 30mm ≤ L3.

11. The smoke collection assembly according to claim 5, characterized in that, Along the length of the smoke collection body, the portion of the opening not covered by the top panel has a second length L2, and the top wall has a fourth length L4, where L2 ≤ L4 ≤ 1.2L2.

12. The smoke collection assembly according to claim 1, characterized in that, The smoke collection chamber has a depth H, where 20mm ≤ H.

13. The smoke collection assembly according to claim 2, characterized in that, There are two smoke collection chambers. Along the length of the smoke collection body, the two smoke collection chambers are respectively located at both ends of the bottom body and separated by an isolation part.

14. The smoke collection assembly according to claim 2, characterized in that, The smoke collection body has a front plate, which is disposed opposite to the back plate. The bottom body is connected to the upper end of the front plate. The smoke collection chamber includes a first chamber and a second chamber. The first chamber is formed between the front plate and part of the back plate, and the second chamber is formed between the bottom body and the top body.

15. The smoke collection assembly according to claim 14, characterized in that, There is a first distance M1 between the end of the top body away from the front plate and the end of the bottom body away from the front plate, where M1 ≤ 60 mm.

16. The smoke collection assembly according to claim 14, characterized in that, A second air inlet is formed at the end of the front panel away from the bottom body.

17. The smoke collection assembly according to claim 14, characterized in that, There is a second distance M2 between the end of the front plate away from the bottom body and the end of the back plate away from the bottom body, where M2 ≤ 50 mm.

18. A range hood, characterized in that, It includes a fan assembly and a smoke collection assembly as described in any one of claims 1-17, wherein the smoke collection assembly is disposed below the fan assembly.

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