A range hood

Abstract

The application discloses a range hood, comprising: a smoke collecting shell provided with a mounting port; a main box arranged above the smoke collecting shell and provided with a smoke suction device inside; a connecting assembly connecting the mounting port of the smoke collecting shell and the main box, a smoke guiding cavity is formed inside the connecting assembly, the cavity diameter is changeable, the cavity diameter value of the connecting end with the mounting port is larger than that of the connecting end with the main box, and a smoke guiding channel is formed among the smoke collecting cavity, the oil screen assembly, the connecting assembly and the main box. The application solves the problem that the range hood in the prior art cannot meet the requirements of large air volume and large oil fume volume adsorption due to size limitation.

Description

Technical Field

[0001] This invention belongs to the field of household kitchen appliances, specifically relating to an improvement in the structure of a range hood. Background Technology

[0002] Range hoods are an essential kitchen appliance. Existing range hoods come in various models, typically including flat-panel, side-draft, and L-shaped types. For direct-draft range hoods, the flat-panel type is the most common. The most direct advantage of flat-panel range hoods is their ability to directly extract naturally rising cooking fumes, while also taking up less space. However, in flat-panel range hoods, the smoke collection shell and the main box are directly connected. The size of the installation port on the smoke collection shell at the oil filter installation location is the same as and matches the size of the main box. This limits the size of the installation port that can suck up smoke. If the size of the installation port is to be increased to increase the air intake and enhance the adsorption effect of oil fumes, the overall structural size of the machine needs to be increased. However, the overall structural size of the machine cannot be infinitely large. Therefore, given the limitations of the main box and the overall size, the existing range hoods of this structure cannot meet the requirements of large air volume and large amount of oil fume adsorption. Summary of the Invention

[0003] This invention addresses the problem that existing range hoods, due to size limitations, cannot meet the requirements for large air volume and large amount of oil fume adsorption. This invention proposes a new range hood structure that can achieve the adsorption requirements for large air volume and large amount of oil fume while ensuring the overall size of the machine, resulting in better smoke extraction.

[0004] To achieve the above-mentioned objectives, the present invention employs the following technical solution: A range hood includes: a smoke collection shell with an installation port; The main box is located above the smoke collection shell, and a smoking device is installed inside it; A connecting component connects the mounting port of the smoke collection shell to the main box. A smoke guiding cavity is formed inside the connecting component, and the cavity diameter is variable. The cavity diameter at the end connected to the mounting port is greater than the cavity diameter at the end connected to the main box. A smoke guiding channel is formed between the smoke collection cavity, the oil mesh assembly, the connecting component, and the main box.

[0005] Furthermore, a cavity is formed inside the smoke collection shell, and a smoke collection cavity that is recessed and inclined toward the cavity side is formed on the smoke collection shell, the depth of the smoke collection cavity gradually decreasing from the side closer to the user to the side farther away from the user.

[0006] Furthermore, the smoke collection chamber includes: The first component is tilted, and its height near the user is greater than its height away from the user. The second component is connected to one side of the first component and is inclined, with its orthographic projection onto the first component located outside the outline of the first component. The third component is disposed opposite to the second component, connected to the other side of the first component, and is inclined, with its orthographic projection onto the first component located outside the outline of the first component. The fourth component, consisting of two parts, is connected to the opposite side of the first component. Its two ends are respectively connected to the end connections of the second and third components, and its orthographic projection onto the first component is located outside the outline of the first component.

[0007] Furthermore, it also includes: an oil mesh assembly, which is assembled at the mounting port and recessed towards the cavity side to form a recessed cavity, the recessed cavity being connected to the smoke collection cavity.

[0008] Furthermore, a first insertion part and a second insertion part are provided around the mounting port; The connecting component, assembled and fixed on the smoke collection shell, includes: The fixing part is used to connect with the smoke collection shell; Locking part; An elastic pressure-bearing component is fitted inside the connecting component and partially extends out of the connecting component; An oil trough, installed on the smoke collection shell and arranged circumferentially along the mounting opening, includes: An insertion part, used to cooperate with the first insertion part; The locking part is used to engage with the elastic pressing component. An outer oil screen is disposed above the oil tank and includes an oil screen claw that cooperates with the second insertion part and a fixing part that cooperates with the locking part. The first locking component is used to cooperate with the fixing part and the locking part to lock and fix the outer oil screen and the range hood shell; An inner oil mesh, with an inner oil mesh flange around its perimeter; The elastic pressing part is provided on the outer oil mesh and is pressed onto the flange of the inner oil mesh.

[0009] Furthermore, a volute assembly is provided inside the main housing, a main housing oil guide component is connected between the main housing and the volute assembly, a volute oil guide component is provided below the volute assembly, and the volute oil guide component is assembled on the main housing.

[0010] Furthermore, the main container includes a first main container side wall located on both sides of the main container and a second main container side wall located on the rear side of the main container; The connection component includes: The first connector has two parts, including: The first connecting part is connected to the side wall of the first main box; The second connecting part is formed by bending from the first connecting part toward the side away from the main box; The first guide portion is connected to the second connecting portion and is inclined away from the main box side; The guide connection part is connected and fixed to the first guide part and the smoke collection shell; The second connector mates with the two first connectors and is fixedly connected to the side wall of the second main box and the smoke collection shell, respectively.

[0011] Furthermore, it also includes: The first oil guide, connected to the first connecting portion, includes: The oil-receiving and guiding part is used to receive and guide the oil flowing down the side wall of the first main tank. The oil-receiving and guiding part extends from one end of the side wall of the first main tank to the other end of the side wall of the first main tank. The second connecting member is close to the end of the first oil guiding member to guide the oil in the first oil guiding member.

[0012] Furthermore, the second connector includes: The third connecting part is used to connect and fix the second connecting piece and the side wall of the second main box; The second guide portion is connected to the third connecting portion and is inclined toward the oil tank side; The fourth connecting part is connected and fixed to the second guide part and the smoke collection shell.

[0013] Furthermore, an oil receiving component is assembled on the smoke collecting shell, forming an oil receiving cavity inside the oil receiving component. The oil receiving component also includes an oil receiving inlet communicating with the oil receiving cavity and an oil outlet guiding the oil outward. The insertion part extends into the oil receiving inlet to guide the oil in the oil tank into the oil receiving cavity.

[0014] Furthermore, it also includes: An oil cup holder, fixedly connected to the smoke collection shell, includes: hanging body; An elastic foot extends from the mounting body and a clamping part is formed between the elastic foot and the mounting body; An assembly channel is formed between the elastic foot and the mounting body, with an opening at one end; An oil cup is used to receive oil discharged from an oil receiving component. A hanging part is formed on the oil cup. The oil cup is inserted into the hanging body and the elastic foot through the hanging part along the assembly channel and is clamped and fixed by the clamping part.

[0015] Furthermore, the outer oil mesh includes: The external oil mesh diversion component includes two opposing first sides and two opposing second sides; The outer oil mesh enclosure includes: Two first outer oil mesh enclosures are provided, which are respectively connected to the two first side panels. Multiple first air inlets are provided on the first outer oil mesh enclosures at an incline and arranged above them. Two second outer oil mesh enclosures are provided, which are respectively connected to two second sides. The area of ​​the second outer oil mesh enclosure is smaller than that of the first outer oil mesh enclosure. Multiple second air inlets are provided on the second outer oil mesh enclosure, which are inclinedly arranged above it. The angle between the center line of the second air inlet and its adjacent second side is greater than the angle between the center line of the first air inlet and its adjacent first side.

[0016] Furthermore, the inner oil mesh and the outer oil mesh are adapted in shape, and the inner oil mesh includes: an inner oil mesh diversion component and an inner oil mesh enclosure plate disposed around the inner oil mesh diversion component, with a plurality of mesh holes evenly arranged on the inner oil mesh enclosure plate.

[0017] Furthermore, a first oil guiding channel is formed between the main tank oil guiding component, the volute oil guiding component, the second connector, and the oil mesh assembly; A second oil guiding channel is formed between the first oil guiding component, the second connecting component, and the oil mesh assembly.

[0018] Compared with the prior art, the advantages and positive effects of the present invention are: The range hood of the present invention has a connecting component between the main box and the smoke collection shell. The mounting port of the smoke collection shell and the main box are connected by the connecting component. Since the diameter of the smoke guiding cavity formed by the connecting component is variable, and the diameter is large near the mounting port and small near the main box, the smoke collection shell and the mounting port can be set to a large size, which realizes the absorption of a large amount of oil fumes and the smoke extraction effect is better.

[0019] Other features and advantages of the present invention will become clearer after reading the detailed embodiments of the invention in conjunction with the accompanying drawings. Attached Figure Description

[0020] To more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings used in the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 The overall structure of the range hood in this embodiment of the invention. Figure 1 ; Figure 2The overall structure of the range hood in this embodiment of the invention. Figure 2 ; Figure 3 This is an exploded view of the range hood in an embodiment of the present invention; Figure 4 This is a schematic diagram of the structure of the range hood's shell body in an embodiment of the present invention. Figure 1 ; Figure 5 for Figure 4 A magnified view of a portion of the image; Figure 6 This is a schematic diagram of the structure of the range hood's casing in an embodiment of the invention. Figure 2 ; Figure 7 This is an exploded view of the main casing structure of the range hood in an embodiment of the present invention; Figure 8 This is a schematic diagram of the oil guiding component of the main box of the range hood in an embodiment of the present invention; Figure 9 This is a schematic diagram of the connection between the main oil guiding component and the volute of the main casing of the range hood in an embodiment of the present invention; Figure 10 This is a schematic diagram of the structure of the volute oil-guiding component of the range hood in an embodiment of the present invention. Figure 1 ; Figure 11 This is a schematic diagram of the structure of the volute oil-guiding component of the range hood in an embodiment of the present invention. Figure 2 ; Figure 12 This is a schematic diagram of the structure of the first oil guiding component of the range hood in an embodiment of the present invention; Figure 13 This is a schematic diagram of the connection structure of the range hood, the first oil guide, and the main housing in an embodiment of the present invention. Figure 1 ; Figure 14 This is a schematic diagram of the connection structure of the range hood, the first oil guide, and the main housing in an embodiment of the present invention. Figure 2 ; Figure 15 This is a schematic diagram of the connection between the first connector, the first oil guide, and the side wall of the first main box of the range hood in an embodiment of the present invention; Figure 16 This is a schematic diagram of the connection components of the range hood in an embodiment of the present invention; Figure 17 This is a schematic diagram of the structure of the oil tank and the external oil screen of the range hood in an embodiment of the present invention; Figure 18 This is a schematic diagram of the structure of the external oil filter of the range hood in an embodiment of the present invention; Figure 19 This is a schematic diagram of the structure of the oil tank of the range hood in an embodiment of the present invention; Figure 20This is a schematic diagram of the structure of the oil filter inside the range hood in an embodiment of the present invention. Figure 1 ; Figure 21 This is a schematic diagram of the structure of the oil filter inside the range hood in an embodiment of the present invention. Figure 2 ; Figure 22 This is a force analysis diagram of oil droplets on the external oil screen of the range hood in an embodiment of the present invention; Figure 23 This is a force analysis diagram of oil droplets on the external oil screen of the range hood in the first direction in an embodiment of the present invention; Figure 24 This is a force analysis diagram of oil droplets on the outer oil screen of the range hood in the second direction in an embodiment of the present invention; Figure 25 This is a diagram illustrating the direction of the resultant force on the oil droplets on the external oil screen of the range hood in an embodiment of the present invention. Figure 26 This is a structural diagram showing the connection between the range hood connecting component and the smoke collection shell in an embodiment of the present invention; Figure 27 for Figure 26 A magnified view of section B; Figure 28 This is a schematic diagram of the connecting components of the range hood in an embodiment of the present invention; Figure 29 This is a structural diagram showing the fit between the outer oil filter, the smoke collection shell, and the connecting components of the range hood in an embodiment of the present invention. Figure 30 for Figure 29 A magnified view of a portion at point C; Figure 31 This is a schematic diagram of the connection between the connecting component and the smoke collection shell in an embodiment of the present invention; Figure 32 This is a schematic diagram of the structure of the elastic pressing component of the range hood in the first embodiment of the present invention; Figure 33 This is a schematic diagram of the second embodiment of the elastic pressing component of the range hood in this invention. Figure 34 This is a schematic diagram of the structure of the oil cup holder and the oil cup in an embodiment of the present invention; Figure 35 This is a schematic diagram of the structure of the oil cup holder of the range hood in an embodiment of the present invention. Figure 1 ; Figure 36 This is a schematic diagram of the structure of the oil cup holder of the range hood in an embodiment of the present invention. Figure 2 ; Figure 37 The structure of the oil receiving component and the smoke collecting shell of the range hood in the embodiment of the present invention is as follows. Figure 1 ; Figure 38This is a structural diagram of the oil receiving component and oil tank of the range hood in an embodiment of the present invention; Figure 39 for Figure 38 A magnified view of a portion at point D; Figure 40 The structure of the oil receiving component and the smoke collecting shell of the range hood in the embodiment of the present invention is as follows. Figure 2 ; Figure 41 This is a schematic diagram of the flow guide hole on the smoke collection shell of the range hood in an embodiment of the present invention; Figure 42 This is a schematic diagram of the oil outlet guide section on the smoke collection shell of the range hood in an embodiment of the present invention; Figure 43 This is a schematic diagram of the oil droplet and oil path structure of the range hood in an embodiment of the present invention. Detailed Implementation

[0022] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments.

[0023] It should be noted that in the description of this invention, the terms "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," which indicate directional or positional relationships, are based on the directional or positional relationships shown in the accompanying drawings. These are merely for ease of description and do not indicate or imply that the device or element must have a specific orientation, or be constructed and operated in a specific orientation; therefore, they should not be construed as limitations on this invention. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0024] This invention proposes an embodiment of a range hood, comprising: The smoke collection shell 110 has a cavity 111 inside it. A smoke collection chamber 120 is formed on the smoke collection shell 110 and is inclined towards the cavity 111. The smoke collection chamber 120 is used to collect and gather smoke. The depth of the smoke collection chamber 120 gradually decreases from the side closer to the user to the side farther away from the user.

[0025] In this embodiment, the side closer to the user refers to the side of the range hood that is closest to the user when it is assembled, which corresponds to the front side of the range hood. Conversely, the side farther from the user corresponds to the rear side of the range hood.

[0026] An installation port 131 is provided on the side of the smoke collection chamber 120 facing the stove, and an oil filter assembly 300 is installed at the installation port 131.

[0027] The oil mesh assembly includes an outer oil mesh 320 with a concave cavity formed on it. The concave cavity is connected to the smoke collection chamber 120. The concave cavity of the outer oil mesh 320 and the concave smoke collection chamber 120 work together to further increase the space of the entire smoke collection chamber 120, so that the entire range hood can better collect and gather smoke.

[0028] In this embodiment, the smoke collection chamber 120 is also inclined. By tilting the smoke collection chamber 120 as a whole, from the front to the rear of the range hood, it can guide the oil fumes better, directing the large amount of oil fumes generated at the front to the oil mesh assembly 300 located at the installation port 131, so that the oil fumes can be quickly sucked away and the oil fume adsorption effect is good.

[0029] Furthermore, the smoke collection chamber 120 is set to be deeper closer to the user and gradually smaller further away from the user. When the range hood is working, most of the oil fumes are concentrated in the area near the front. Setting the smoke collection chamber 120 at the front to be deeper will result in better smoke collection and achieve a better smoke gathering effect.

[0030] Specifically, the smoke collection chamber 120 includes: The first component 121 is inclined, and its height near the user is greater than its height away from the user. The first component 121 corresponds to the base plate of the smoke collection chamber 120, which is inclined from front to back, so as to achieve a better guiding effect on the oil fumes.

[0031] The second component 122 is connected to one side of the first component 121 and is inclined. Its orthographic projection onto the first component 121 is located outside the outline of the first component 121. The second component 122 corresponds to the front plate of the smoke collection chamber 120. It is also inclined and is offset outward relative to the first component 121.

[0032] The third component 123 is disposed opposite to the second component 122 and is connected to the other side of the first component 121. It is inclined and its orthogonal projection onto the first component 121 is located outside the outline of the first component 121. Correspondingly, the third component 123 is the rear plate of the smoke collection chamber 120 and is also inclined outward from the first component 121.

[0033] The fourth component 124 is provided in two parts, which are connected to the opposite side of the first component 121. Its two ends are respectively connected to the end connections of the second component 122 and the third component 123. Its orthographic projection onto the first component 121 is located outside the outline of the first component 121.

[0034] The fourth component 124 corresponds to the side plate of the smoke collection chamber 120, and there are two of them, which are offset outward relative to the first component 121.

[0035] The space corresponding to the smoke collection cavity 120, which is a kind of square pyramid structure formed by the second component 122, the third component 123, the fourth component 124, which are all set around the first component 121 and are offset outward from the first component 121, is increased, forming a large space smoke collection cavity 120 structure. In this way, more oil fumes can be collected, and a large amount of smoke collection effect is achieved.

[0036] Furthermore, since multiple components are inclined, during use, the second component 122, the third component 123, and the fourth component 124 around the perimeter can guide the oil fumes from all directions, directing the oil fumes into the smoke collection chamber 120, thus achieving a better smoke guiding effect.

[0037] Specifically, the installation port 131 is opened on the first component 121 of the smoke collection chamber 120, which can be used to discharge the oil fumes in the smoke collection chamber 120 to the outside.

[0038] Since the second component 122 and the third component 123 are respectively connected to the two opposite sides of the first component 121, their lengths are equal.

[0039] Preferably, the width of the second component 122 is greater than the width of the third component 123, and the included angle between the second component 122 and the first component 121 is greater than the included angle between the third component 123 and the first component.

[0040] The second component 122, located near the front of the range hood, is wider and has a larger tilt angle, which can effectively collect and guide the fumes from the front.

[0041] The first component 121, the second component 122, the third component 123 and the fourth component 124 are preferably integrally formed with the shell body 130.

[0042] Specifically, in this embodiment, the smoke collection shell 110 includes: a shell body 130, a back plate 140, and a cover plate 150, which together form the cavity 111.

[0043] The shell body 130 is composed of a shell bottom plate 134 and a shell surrounding plate 135 arranged around the shell bottom plate 134. The smoke collection chamber 120 is formed by recessing the shell bottom plate 134.

[0044] The shell enclosure 135 includes a front enclosure 1351 and side enclosures 1352 connected together. The front enclosure 1351 is connected to the front side of the bottom shell 134 and the front ends of the two side enclosures 1352. The side enclosures 1352 are connected to the two left and right sides of the bottom shell 134. The rear back plate 140 is correspondingly connected to the other two ends of the side enclosures 1352 and the rear side of the bottom shell 134.

[0045] The side panel 1352 is preferably inclined, and its height increases as it approaches the rear side.

[0046] An installation window 1353 is provided at the front panel 1351, and a touch screen is provided at the installation window 1353. The touch screen is equipped with touch control buttons and a main controller integrated into the touch screen. The main controller can be electrically connected to the touch control buttons and can be used to realize the relevant control of the range hood.

[0047] In specific connection, its bottom end is connected and fixed to the side panel 1352 and the bottom plate 134 by screws. In some embodiments, a folded edge can be provided at the side panel 1352 and a folded edge can be provided on the back plate 140. The two can be fixed and connected by screws. The back plate 140 is connected and fixed to the smoke collection shell 110 to form a cavity with an open top. An upwardly extending section 141 is formed at the middle position of the rear panel 140, and an avoidance notch is provided on the extension section 141.

[0048] The left side, bottom side and right side of the back panel 140 are connected and fixed to the side panel 1352 and the bottom plate 134 of the shell, respectively. Its extension 141 extends upward and is fixedly connected to the main box 200. In some embodiments, it can be fixedly connected to the main box 200 by screws or bolts.

[0049] To enhance the overall strength of the range hood, a reinforcing rib 160 is connected to the back panel 140 and the shell body 130 on the side opposite to the back panel 140, spanning the entire smoke collection chamber 120. Multiple reinforcing ribs 160 are provided and are evenly spaced along the length of the back panel 140.

[0050] A first connecting foot is provided on the back panel 140, and a second connecting foot is provided on the shell body 130. The two ends of the reinforcing rib 160 plate are respectively locked and fixed to the first connecting foot and the second connecting foot by screws.

[0051] A cover plate 150 is provided at the assembly opening to seal the open position.

[0052] A ring-shaped engaging step 170 is formed on the top of a plurality of shell plates 135 of the shell body 130. The ring-shaped engaging step 170 includes a first horizontal step surface and a first vertical step surface. A locking hole is provided at the connection position of the first horizontal step surface and the first vertical step surface. The cover plate 150 includes a front side, a left side, a right side, and a rear side. A front flange, a rear flange, a left flange, and a right flange are respectively provided on the front side, the left side, the right side, and the rear side. A pin is provided on the front flange, the left flange, and the right flange. The height of the front flange, the left flange, and the right flange is the same as the height of the first vertical step surface. During connection, the front flange, the left flange, and the right flange are respectively inserted into the locking hole on the step of the smoke collection shell 110 through the pin. At the same time, the rear flange is wrapped around the outside of the back plate 140 and is connected and fixed to the back plate 140 by screws.

[0053] To facilitate the connection and fixation of the smoke collection shell 110, the back panel 140 and the main box 200, an assembly clearance opening 151 is provided on the cover plate 150 in this embodiment so that the smoke collection shell 110 and the back panel 140 can pass through for assembly.

[0054] A main box 200 is provided above the smoke collection shell 110. Preferably, in this embodiment, the main box 200 is a rectangular box with an accommodating space inside, and a volute assembly is provided inside the accommodating space.

[0055] Specifically, the main box 200 in this embodiment includes: a first main box side wall 211 located on both sides of the main box 200, a second main box side wall 212 located on the rear side of the main box 200, a main box top wall 214, and a third main box side wall 213 disposed opposite to the second main box side wall 212. The second main box side wall 212 and the third main box side wall 213 are disposed opposite to each other, that is, in this embodiment, the third main box side wall 213 is located on the front side of the main box 200 facing the user.

[0056] The volute 220 assembly includes a volute 220 and an impeller located inside the volute 220. To drive the impeller, the range hood in this embodiment also includes a motor. The motor and the impeller are connected by a transmission. The motor and the volute 220 assembly constitute a smoke extraction device. In use, the motor rotates at a high speed, driving the impeller to rotate and generating a negative pressure adsorption force to adsorb the generated oil fumes.

[0057] When the connection is fixed, the main box 200 is connected to the smoke collection shell 110 through the connecting component 500, and a corresponding smoke guiding chamber is formed inside the connecting component 500.

[0058] Specifically, the connection component 500 includes: The first connector 510 has two parts, including: The first connecting part 511 is connected to the first main box side wall 211. Preferably, the first connecting part 511 is a first vertical connecting plate, which is set to fit the outer side surface of the first main box side wall 211. During connection, it can be connected and fixed to the first main box side wall 211 by screwing.

[0059] The second connecting part 512 is formed by bending from the first connecting part 511 toward the side away from the main box 200. The second connecting part 512 can be configured as a second horizontal connecting plate that is perpendicular to the first vertical connecting plate and extends outward. The first guide portion 513 is connected to the second connecting portion 512 and is inclined to the side away from the main box 200. The first guide portion 513 can be configured as a first inclined connecting plate that is inclined outward relative to the side wall 211 of the first main box, so as to guide the oil fumes.

[0060] In some preferred embodiments, the first inclined connecting plate is inclined along the width direction corresponding to the left and right sides of the main box 200 and the front and back directions corresponding to the front and back sides. By setting the first guide part to be inclined to the left and right sides and to the front and back sides, it can guide the oil fumes in both the front and back and left and right directions, thereby achieving a better smoke guiding effect.

[0061] The guide connecting part 514 is connected and fixed to the first guide part 513 and the smoke collection shell 110. It may be provided with a guide connecting plate, and may be set vertically or inclined, as long as it can be matched and connected with the smoke collection shell 110.

[0062] The second connector 520 is mated with the two first connectors 510 and is fixedly connected to the second main box side wall 212 and the smoke collection shell 110 respectively.

[0063] Specifically, the second connector 520 includes: The third connecting part 521 is used to connect the second main box side wall 212. The third connecting part 521 can be configured as a third connecting plate.

[0064] The second guide portion 522 is connected to the third connecting portion 521 and is inclined toward the oil tank 310. The second guide portion 522 can be configured as a second guide plate.

[0065] The fourth connecting part 523 is connected and fixed to the second guide part 522 and the smoke collection shell 110. The fourth connecting part 523 can be configured as a fourth connecting plate for connecting purposes.

[0066] Furthermore, the connection component 500 in this embodiment also includes a third connector 530.

[0067] To connect the smoke collection shell 110 and the main housing 200, a folded connecting portion 180 is formed by folding upwards from the mounting opening 131. The folded connecting portion 180 includes a first connecting flange 181, a second connecting flange 182, and a third connecting flange 183 arranged circumferentially along the mounting opening 131. There are two first connecting flanges 181, which are arranged opposite to each other.

[0068] During connection, the two first connectors 510 are respectively attached to the guide connector 514 and the two first connecting flanges 181 and fixed with screws between them.

[0069] The second connecting flange 182 corresponds to and is attached to the fourth connecting part 523 and fixed by screws.

[0070] The third connecting flange 183 is partially attached to the third connecting piece 530 and fixed by screws. The other end of the third connecting piece 530 is fixedly connected to the side wall 213 of the third main box.

[0071] When setting the third connector 530, it can be set as an inclined plate or as a bent plate structure with multiple inclined sections and vertical sections alternating. No specific restrictions are made here.

[0072] In this embodiment, the first connector 510, the second connector 520 and the third connector 530 can be integrally formed during installation, or they can be formed separately and then fixed together by welding or screwing.

[0073] When forming the parts separately, the two ends of the second connector 520 can be connected and fixed to the two first connectors 510 respectively, and the third connector 530 can be connected and fixed to the other ends of the two first connectors 510 respectively.

[0074] To facilitate connection, matching and fitting folded edges can be provided at the mating positions of the first connector 510, the second connector 520, and the third connector 530. During connection, the folded edges are fitted together and then screwed in for fixation.

[0075] A first groove 260 is provided on the outer wall of the main box 200 along the height direction of the main box 200.

[0076] A second groove is provided on the second connector 520, and the position of the second groove corresponds to the notch on the back panel 140 so that the second groove on the second connector 520 can be just exposed.

[0077] This allows the cables on the main box 200 to pass sequentially through the first cable tray 260 on the main box 200 and the second cable tray portion on the second connector 520.

[0078] After the smoke collection shell 110 and the main box 200 are connected by the connecting component 500, a smoke guiding channel is formed between the main box 200, the connecting component 500 and the smoke collection shell 110.

[0079] When the range hood is working, the oil fumes are absorbed by the negative pressure generated by the high-speed rotation of the suction device. The oil fumes pass through the oil mesh assembly 300 and enter the smoke guide chamber formed by the connecting assembly 500. Then, they are guided into the main box 200 through the smoke guide chamber and finally discharged from the exhaust port at the top of the main box 200 after being absorbed.

[0080] The smoke guide cavity formed by the connecting component 500 in this embodiment increases the space for smoke storage inside the range hood, thus meeting the needs of the range hood for large-capacity smoke extraction.

[0081] The inner diameter of the smoke guiding cavity, which is formed by the connection of the first connector 510, the second connector 520 and the third connector 530, is constantly changing. Along the direction of oil fume flow, the inner diameter is larger near the smoke collecting shell 110, and the inner diameter is the largest when it reaches the middle position. Then, the closer it is to the main box 200, the smaller its inner diameter becomes.

[0082] The fumes produced by the range hood are mainly drawn away through the oil filter assembly 300 and then through the installation port 131. The size of the installation port 131 has a significant impact on the fume extraction performance of the range hood.

[0083] In the structural design of range hoods, the main casing 200 is generally of a fixed size and relatively small. To meet the demand for larger smoke extraction, the installation port 131 should be made larger. This allows for the installation of a larger oil filter assembly 300, achieving better smoke extraction. However, a direct connection between the installation port 131 and the main casing 200 would not be compatible. The connecting component 500 in this embodiment provides a good transition. In this embodiment, the smoke guiding cavity, formed by the first connector 510, the second connector 520, and the third connector 530, is configured such that the cavity diameter at the installation port of the smoke collection shell is larger than the cavity diameter at the main casing connection, while its inner diameter is continuously changing, moving along the direction of smoke flow towards the smoke collection shell 110. At the initial position, the inner diameter is relatively large. When it reaches the middle position, the inner diameter is the largest. Then, the closer it gets to the main box 200, the smaller its inner diameter becomes. This achieves both connection and ensures the design requirements for a large smoke volume.

[0084] Meanwhile, because the first connector 510 includes a first guide portion 513 that is inclined to the outside of the main box 200, and the second connector 520 also includes a second guide portion 522 that is inclined, the smoke guide cavity formed by the first connector 510 and the second connector 520 and the third connector 530 connected thereto makes the width of the entire smoke guide channel wider, making the air intake smoother, the amount of oil fume adsorbed is greater, and the adsorption effect is better.

[0085] By tilting the first connector 510 and the second connector 520 in the connecting assembly 500, a better smoke guiding effect can be achieved. For example, the two opposing first connectors 510, which are set on the two first main box side walls 211, can guide the smoke in an arc. Similarly, the second guide part 522 of the second connector 520 can also play a guiding role, so that the oil fumes can quickly enter the interior of the main box 200 along the tilted walls of the first connector 510 and the second connector 520, achieving a better oil fume absorption effect.

[0086] To enable quick installation and disassembly of the oil filter assembly 300, the range hood in this embodiment is also provided with a connecting component 400. The connecting component 400 enables quick installation of the oil filter assembly 300 and also allows for convenient and quick disassembly.

[0087] Specifically, a locking step 132 is provided on the shell body 130 of the smoke collection shell 110 around the installation port 131. The locking step 132 can be formed on the first component 121, and includes a vertical step portion 1321 and a horizontal step portion 1322 arranged sequentially from bottom to top.

[0088] A first insertion part 1331 and a second insertion part 1332 are provided on the shell body 130 around the mounting port 131. When installed, the first insertion part 1331 is provided on the vertical step part 1321, and the second insertion part 1332 is provided on the horizontal step part 1322.

[0089] Preferably, the first insertion part 1331 is a first insertion port opened on the vertical step part 1321, and the second insertion part 1332 is a second insertion hole opened on the horizontal step part 1322.

[0090] A connecting component 400 is assembled and fixed on the smoke collection shell 110. Preferably, the connecting component 400 is configured to fit the contour shape of the shell body 130. Specifically, the connecting component 400 includes a first connecting body 441 and a second connecting body 442, with a locking portion 443 formed between the first connecting body 441 and the second connecting body 442. The locking portion 443 engages with the outside of the locking step 132, achieving a matching and fitting relationship with the shell body 130.

[0091] The connecting component 400 also includes: The threaded part 410 is used to connect with the smoke collection shell 110. Preferably, the threaded part 410 is a first threaded hole provided on the connecting member 400 and passing through the connecting member 400, and a recessed relief part 460 is formed on the connecting member 400 around the first threaded hole.

[0092] A second through hole is provided on the smoke collection shell 110. During connection, a screw is passed through the second through hole and locked in the first threaded hole. The screw head is located in the recessed relief part 460 to achieve shielding.

[0093] The locking part 420 is provided on the connecting member 400 with a protrusion 450. The locking part 420 extends from the protrusion 450 to the wall position where the connecting member 400 and the protrusion 450 are located opposite each other.

[0094] The locking part 420 is preferably a locking threaded hole that passes through the connecting part 400.

[0095] The elastic pressing member 430 is assembled inside the connecting member 400 and partially extends out of the connecting member 400. It is elastic and can extend and retract relative to the connecting member 400. Its partial extension out of the connecting member 400 can be used to achieve cooperation with the oil tank 310.

[0096] Oil tank 310 is circumferentially arranged along the mounting port 131, and the oil tank 310 includes: The insertion part 311 is used to cooperate with the first insertion part 1331. The insertion part 311 is preferably an oil guide tongue directly formed on the side wall of the oil groove 310. It can be inserted into the first insertion port on the first vertical step part 1321 to achieve insertion and fixation with the smoke collection shell 110. Multiple oil guide tongues can be provided along the side wall of the oil groove 310, and multiple corresponding first insertion ports can also be provided to cooperate with multiple oil guide tongues.

[0097] The locking part 312 is used to lock and cooperate with the elastic pressing part. The oil groove 310 is inserted into the first insertion part 1331 through the insertion part 311 and is fixed to it by the cooperation of the elastic pressing part 430 with the locking part 312. The insertion part 311 is preferably formed on one side wall of the oil tank 310, while the locking part 312 is correspondingly provided on the other side wall of the oil tank 310 opposite to the insertion part 311. The locking part 312 is preferably a locking groove formed on the side wall of the oil tank 310, which can be used to lock into the elastic pressing member 430.

[0098] In this embodiment, the oil tank 310 further includes a first oil tank sidewall 313 and a second oil tank sidewall 314 arranged sequentially from the inside to the outside. The first oil tank sidewall 313 is located inside the oil tank 310, and the second oil tank sidewall 314 is located outside the oil tank 310. A protective part 315 is formed by bending along the top of the first oil tank sidewall 313 toward the inside of the oil tank 310. A wrench part 316 is formed on the first oil tank sidewall 313 on one side of the protective part 315, and the locking part 312 is provided on the second oil tank sidewall 314.

[0099] The protective part 315 is preferably a protective flange, which serves a protective function, and the wrench part 316 is preferably a wrench lock position, which allows the user to apply force through the wrench position to install and disassemble the oil tank 310.

[0100] During assembly, the oil trough 310 is inserted into the first insert portion 1331 located on the vertical step portion 1321 via the insert portion 311, and then engaged with the elastic pressing member 430 via the locking portion 312 located on the other side to achieve connection and fixation with the smoke collection shell 110. After the oil trough 310 is assembled, its bottom surface is flush with the bottom surface of the first component 121, and its groove opening faces the main box 200.

[0101] The outer oil mesh 320 is positioned above the oil trough 310 and covers the mounting port 131. It includes an oil mesh claw 321 that cooperates with the second insertion part 1332 and a fixing part 322 that cooperates with the locking part 420. The outer oil mesh 320 is also provided with an elastic pressing part 323.

[0102] The outer oil mesh 320 is positioned above the oil tank 310, allowing oil droplets to be collected inside the oil tank 310. The outer oil mesh 320 includes an outer oil mesh flange 324.

[0103] The fixing part 322 is disposed on the outer oil mesh flange 324, and the fixing part 322 and the locking part 420 are in corresponding positions.

[0104] Preferably, the fixing part 322 is a fixing hole formed on the outer oil mesh flange 324.

[0105] Furthermore, an annular folding rib 325 extending upward from the outer oil mesh flange 324 is provided on the outer oil mesh flange 324, and the oil mesh claw 321 and the elastic pressing part 323 are both formed on the annular folding rib 325.

[0106] An annular oil guide groove 326 is formed between the annular folded rib 325, the outer oil mesh flange 324, and the outer oil mesh 320 body.

[0107] Oil mesh clamp 321 is provided on the top surface of the annular folding rib 325, and is formed by folding outward from the top of the annular folding rib 325. Elastic pressing part 323 is also provided on the annular folding rib 325, and is formed by extending outward to the inner side of the oil mesh 320 and tilting downward.

[0108] The first locking component 340 is used to cooperate with the fixing part 322 and the locking part 420 to lock and fix the outer oil mesh 320 and the smoke collection shell 110. The first locking component 340 may be a flat-head locking screw.

[0109] When assembling the outer oil mesh 320, the outer oil mesh 320 is secured in the second insertion part 1332 on the first horizontal step part 1322 by the oil mesh clip 321, and then the flat-head locking screw is passed through the fixing hole on the outer oil mesh 320 and locked in the locking part 420.

[0110] When disassembling the outer oil screen 320, remove the platform locking screws, and then separate the oil screen clips 321 and the second insertion part 311. The installation structure of the outer oil screen 320 in this embodiment ensures that even after the platform locking screws are removed, the outer oil screen 320 will not suddenly fall off due to the connection of the oil screen clips 321, thus avoiding safety hazards.

[0111] To facilitate the passage of the flat-head locking screw, an opening is provided on the smoke collection shell 110 to allow it to pass through.

[0112] An inner oil mesh flange 331 is provided around the inner oil mesh 330; The protective component 332 is wrapped around the inner oil mesh flange 331 around the inner oil mesh 330. The protective component 332 is preferably a protective edging of the inner oil mesh 330, which wraps around the inner oil mesh flange 331 and at least wraps around the left and right sides of the inner oil mesh 330. This can prevent safety hazards such as hand cuts and is in good condition for user experience.

[0113] When connecting, the inner oil mesh 330 is assembled and fixed on the outer oil mesh 320. Specifically, during assembly, the inner oil mesh 330 is covered and fastened onto the outer oil mesh 320, and at the same time, the elastic pressing part 323 provided on the outer oil mesh 320 is pressed onto the corresponding inner oil mesh flange 331 to tighten it.

[0114] Preferably, the elastic pressing part 323 is an elastic pressing foot provided on the outer oil mesh flange 324.

[0115] To achieve complete locking and fixing of the outer oil filter 320 and the inner oil filter 330, the range hood in this embodiment is also provided with a second locking assembly 350 for locking and fixing the outer oil filter 320 and the inner oil filter 330. The second locking assembly 350 may use a second screw and nut assembly structure to further lock and fix the two.

[0116] The outer oil mesh 320 is designed with two elastic pressure foot structures. The inner oil mesh flange 331 at the bottom of the inner oil mesh 330 is limited and locked by the elastic pressure foot of the outer oil mesh 320. The upper part of the inner oil mesh 330 is fixed to the outer oil mesh 320 by a screw and nut assembly. This fixing method effectively solves the problem of convenient disassembly of the oil mesh by users, eliminates the safety hazards caused by the inner oil mesh 330 not being fixed, and also solves the product damage caused by the shaking during assembly of the inner oil mesh 330 and the outer oil mesh 320.

[0117] As one embodiment of the elastic pressing member 430 in this embodiment, the elastic pressing member 430 includes: a pressing member 431, an installation cavity 471 in the connecting member 400, the pressing member 431 is partially located in the installation cavity 471 and partially extends out of the installation cavity 471, and a limiting part 432 is provided on the pressing member 431 to prevent it from disengaging from the installation cavity 471; The pressing member 431 can be a pressing pin, the end of which has a smooth transition curved surface structure. Preferably, the end of the pressing member 431 adopts a smooth transition bullet-shaped structure to facilitate locking and engaging with the locking part 312 on the oil groove 310. The limiting part 432 can be a limiting protrusion directly formed on the pressing member 431.

[0118] The elastic element 433 is assembled in the mounting cavity 471, with one end abutting against the bottom wall of the mounting cavity 471 and the other end abutting against the pressing element 431.

[0119] During assembly, the elastic element 433 is installed in the mounting cavity 471, and then a force is applied to the pressing element 431 through it, pushing the pressing element 431 outward to achieve a locking engagement with the locking part 312 provided on the oil tank 310. The elastic force provided by the elastic element 433 is applied to the pressing element 431, which can keep the pressing element 431 in the extended state at all times, ensuring the firmness of the engagement and fixation between the pressing element 431 and the locking part 312 on the oil tank 310.

[0120] When disassembly is required, a downward force can be applied to the wrench part 316, which will cause the oil groove 310 to move relative to the wrench part 316, causing the locking part 312 to move relative to the pressing member 431. At the same time, the pressing member 431 and the elastic member 433 are compressed, causing the pressing member 431 to contract, thereby separating the pressing member 431 and the locking part 312. Meanwhile, the insertion part 311 can be pulled out from the first insertion part 1331 to achieve the disassembly of the oil groove 310.

[0121] Another embodiment of the elastic pressing component 430 in this example is as follows: The elastic pressing member 430 includes: an ejector 434; an assembly cavity 472 is provided in the connecting member 400; the assembly cavity 472 has a first opening 2721; an internal thread 4341 is provided in the assembly cavity 472 near the first opening 2721; the ejector 434 is partially located in the assembly cavity 472 and partially extends out from the side of the assembly cavity 472 opposite to the first opening 2721; and a stop 435 is provided on the ejector 434 to prevent it from disengaging from the assembly cavity 472.

[0122] The ejector 434 preferably includes a body section 4342 and a locking section 4343 disposed at the end of the body section 4342. The head of the locking section 4343 is a smoothly transitioned curved surface, which can be a bullet-shaped curved surface or an arc-shaped curved surface, so as to facilitate locking and engaging with the locking part 312 on the oil tank 310.

[0123] The threaded adjusting member 436 is screwed into the assembly cavity 472 through the first opening 2721. The threaded adjusting member 436 is provided with a threaded mating part that engages with the internal thread 4341. The threaded mating part is preferably an external thread. The threaded adjusting member 436 is provided with a wrench operating part for easy operation of the knob. The wrench operating part can be a wrench knob position directly formed on the threaded adjusting member 436 for easy knob operation.

[0124] Preferably, the threaded adjusting element 436 is an adjusting plug or an adjusting bolt.

[0125] The elastic reset member 437 is assembled in the assembly cavity 472, with one end abutting against the threaded adjusting member 436 and the other end abutting against the pressing member 431. The elastic reset member 437 may be a spring or an elastic sheet or other elastic structure.

[0126] In a specific configuration, a protrusion 4345 may be provided on the main body section 4342. The protrusion 4345 is provided perpendicular to the stop portion 435, and the elastic reset member 437 is sleeved on the protrusion 4345 and abuts against the stop portion 435.

[0127] The protrusion can be a raised post, and the stop 435 can be a stop post provided with the vertical raised post, which is used to realize the assembly and limiting of the elastic reset member 437.

[0128] During assembly, the ejector 434 is first inserted into the assembly cavity 472, with a portion of the ejector 434 extending outward from the assembly cavity 472. Then, the elastic reset member 437 is inserted, and finally, it is screwed into the assembly cavity 472 from the first opening 2721 side to press and fix the elastic reset member 437. At this time, the ejector 434 can extend outward under the elastic force of the elastic reset member 437, and when subjected to compressive force, the ejector 434 can compress the elastic reset member 437 and deform inward.

[0129] When the oil tank 310 is installed, the locking part 312 on the oil tank 310 will lock into the end of the ejector 434 and be fixed by the elastic resistance of the ejector 434. When disassembly is required, a force can be applied to the oil tank 310 to make it slide relative to the ejector 434 and compress the ejector 434 and the elastic reset part 437. The ejector 434 retracts, so that the locking part 312 on the oil tank 310 and the ejector 434 disengage, making it convenient for installation and disassembly.

[0130] Meanwhile, due to the implementation of the elastic pressing component 430 in this embodiment, a threaded adjustment component 436 is also provided. During long-term use, if the spring becomes too stiff due to aging, it may fail to cooperate with the locking part 312 of the oil screen due to the loosening of the spring. In this embodiment, when the elastic reset component 437 becomes loose after long-term use, the elastic force of the elastic reset component 437 can be adjusted by adjusting the position of the plug, so as to ensure that the ejector 434 can always be locked and fixed between it and the oil groove 310, thus achieving the firmness of the fixing method.

[0131] In this embodiment, the oil mesh assembly 300 achieves quick disassembly and installation by cooperating with the elastic pressing component 430 of the connecting component 400 and the first insert part 1331 on the smoke collection shell 110 through the oil groove 310. Similarly, the outer oil mesh 320 achieves quick connection and assembly with the smoke collection shell 110 by cooperating with the locking part 420 of the connecting component 400 and the second insertion part 1332 on the smoke collection shell 110; by assembling and fixing the inner oil mesh 330 and the outer oil mesh 320, the inner oil mesh 330 and the outer oil mesh 320 can be easily and quickly disassembled, while avoiding the occurrence of safety hazards.

[0132] The specific structure of the outer oil mesh 320 in this embodiment includes an outer oil mesh diversion component 327, which includes two oppositely arranged first side edges 3271 and two oppositely arranged second side edges 3272. Preferably, the length of the first side edge 3271 is greater than that of the second side edge 3272. In this embodiment, the first side edge 3271 is located on the left and right sides of the outer oil mesh diversion component 327 when the range hood is installed. Correspondingly, the second side edge 3272 is located on the front and rear sides of the outer oil mesh diversion component 327.

[0133] The outer oil mesh enclosure is used to connect around the outer oil mesh diversion component 327. The outer oil mesh enclosure and the outer oil mesh diversion component 327 are connected to form an inner cavity at the mounting port 131 of the outer oil mesh 320 when it is assembled into the smoke collection shell 110.

[0134] The outer oil mesh enclosure specifically includes: Two first outer oil mesh enclosures 328 are provided, which are respectively connected to two first side panels 3271. Multiple first air inlets 3281 are provided on the first outer oil mesh enclosures 328, which are inclinedly arranged above them. Preferably, the first outer oil mesh enclosure 328 is arranged at an angle, and its orthographic projection onto the outer oil mesh diversion component 327 is located outside the outline formed by the first side 3271 and the second side 3272 of the outer oil mesh diversion component 327. That is, the first outer oil mesh enclosure 328 in this embodiment is arranged at an angle to the outside.

[0135] By tilting the design, the space of the entire recessed cavity can be increased; in addition, by tilting the design, the fumes on the left and right sides of the range hood can be better guided.

[0136] In some preferred embodiments, the first air inlet 3281 is a first oblique elongated hole provided on the first outer oil mesh enclosure 328. The first oblique elongated hole is evenly distributed on the first outer oil mesh enclosure 328, and the length of the first oblique elongated hole corresponding to the center position of the first outer oil mesh enclosure 328 gradually decreases from the center position to the two sides. In this embodiment, the first outer oil mesh enclosure 328 can be configured as a trapezoid, with its first oblique elongated hole opened along the diagonal of the trapezoid. The first oblique elongated hole at the middle position is the longest, and then the length of the first oblique elongated hole on both sides gradually becomes shorter.

[0137] Preferably, the longest first oblique hole is 280mm.

[0138] Two second outer oil mesh enclosures 329 are provided, which are respectively connected to two opposite second side panels 3272. The two second outer oil mesh enclosures 329 are symmetrically arranged, and multiple second air inlets 3291 are provided on the second outer oil mesh enclosures 329 at an angle above them.

[0139] Preferably, the second outer oil mesh enclosure 329 is arranged at an angle, and its orthographic projection onto the outer oil mesh diversion component 327 is located outside the outline formed by the first side 3271 and the second side 3272 of the outer oil mesh diversion component 327. That is, the second outer oil mesh enclosure 329 in this embodiment is also arranged at an angle to the outside.

[0140] By tilting the design, the space of the entire recessed cavity can be increased; in addition, by tilting the design, the fumes on the front and back sides of the range hood can be better guided.

[0141] In some preferred embodiments, the second air inlet 3291 is a second oblique elongated hole provided on the second outer oil mesh enclosure 329. The second oblique elongated hole is evenly distributed on the second outer oil mesh enclosure 329, and the length of the second oblique elongated hole corresponding to the center position of the second outer oil mesh enclosure 329 gradually shortens from the center position to the two sides. In this embodiment, the second outer oil mesh enclosure 329 can be configured as a trapezoid, with its second oblique elongated holes arranged obliquely along the two parallel sides of the trapezoid. The second oblique elongated hole at the middle position has the longest length, and then the length of the corresponding second oblique elongated holes on both sides gradually becomes shorter.

[0142] When the range hood is working, the fumes rise and reach the outer oil mesh diversion component 327. The airflow is blocked and diverted by the outer oil mesh diversion component 327, causing the airflow to disperse in all directions. The fumes will flow to the first outer oil mesh enclosure 328 and the second oil mesh enclosure located around the outer oil mesh diversion component 327.

[0143] At the same time, the negative pressure in the area around the external oil mesh diversion component 327 is increased by the external oil mesh diversion component 327, which makes it easier for the oil fumes to be quickly sucked away.

[0144] Preferably, in this embodiment, the area of ​​the second outer oil mesh enclosure 329 is smaller than the area of ​​the first outer oil mesh enclosure 328.

[0145] Since the area of ​​the first outer oil mesh enclosure 328 in this embodiment is larger than the area of ​​the second outer oil mesh enclosure 329, after the action of the outer oil mesh diversion component 327, most of the oil fume flow flows out from the first outer oil mesh enclosure 328 at both sides.

[0146] The outer oil mesh diversion component 327 mainly increases the negative pressure in the area corresponding to the first outer oil mesh enclosure 328 on both sides, making the smoke extraction effect more significant.

[0147] After the oil fume airflow passes through the obstruction of the outer oil mesh diversion component 327, its flow direction will be deflected. In this embodiment, by opening the first oblique elongated hole and the second oblique elongated hole on the first outer oil mesh enclosure 328 and the second outer oil mesh enclosure 329 respectively, the direction of the deflectable airflow can be matched, so that the deflected airflow can pass through smoothly and is less likely to generate airflow turbulence problems, thereby making the adsorption of oil fumes smoother.

[0148] Meanwhile, a first oblique long hole and a second oblique long hole are respectively opened on the first outer oil mesh enclosure 328 and the second outer oil mesh enclosure 329. Compared with the method of directly opening a long straight hole, the area of ​​the opening is increased, thereby increasing the air intake area and making the air intake speed faster.

[0149] The external oil filter diversion component 327 is located below the main box 200, which can also block and catch oil, preventing oil from dripping directly onto the stovetop.

[0150] The outer oil mesh diversion component 327 is a smoothly transitioned curved surface segment plate. Preferably, the outer oil mesh diversion component 327 is an arc-shaped segment plate. Setting the outer oil mesh diversion component 327 to an arc shape can achieve oil guidance. Oil droplets dripping from the main box 200 onto the outer oil mesh 320 can flow along the arc-shaped segment plate to the surrounding outer oil mesh enclosure.

[0151] Due to the obstruction effect of the outer oil mesh diversion component 327 and the large area of ​​the first outer oil mesh enclosure 328, the oil fumes mainly enter the areas on both sides of the first outer oil mesh enclosure 328. In this embodiment, the angle between the centerline of the second air inlet 3291 and its adjacent second side 3272 is greater than the angle between the centerline of the first air inlet 3281 and its adjacent first side 3271. That is, the tilt angle of the first air inlet 3281 is larger than the tilt angle of the second air inlet 3291.

[0152] In this embodiment, the second outer oil mesh enclosure 329, which is set at the front and rear, is designed with a small tilt angle and short holes; the first outer oil mesh enclosure 328 has a larger tilt angle to the left and right and adopts a long hole design. This can meet the usage requirements of large air volume intake on both sides.

[0153] When cooking, oil fumes begin to be generated and rise to the rising zone. Because the two pots are placed side by side when cooking, the external oil mesh structure with large left and right air intakes in this embodiment can achieve a large amount of adsorption of oil fumes. At the same time, multiple air intakes on the left and right sides can also avoid affecting the user's use due to multiple air intakes from the front and back. For example, if the fumes come in from the front and back, it will cause the user to be choked by the fumes.

[0154] In this embodiment, oblique holes are provided on the outer oil mesh panel to achieve air intake from all four sides (left, right, front, and back), resulting in a large air intake area.

[0155] Due to the function of the outer oil mesh diversion component 327, the generated oil fumes mainly diffuse to the two sides. The oil fumes are also mainly discharged outward through the first outer oil mesh enclosure 328 located on the left and right sides of the outer oil mesh diversion component 327. In this embodiment, for ease of description, the following focuses on the structural arrangement of the first oil guide path 3282 and the first outer oil mesh enclosure 328.

[0156] Preferably, in this embodiment, the first outer oil mesh enclosure 328 is inclined along the first direction and the second direction, the inclination angle of the first outer oil mesh enclosure 328 along the first direction is 12-15°, and the inclination angle of the first outer oil mesh enclosure 328 along the second direction is 15-17°.

[0157] In this embodiment, the first direction is the left-right direction, and the second direction is the front-back direction.

[0158] The angle at which the first outer oil mesh enclosure 328 is tilted along the first direction corresponds to the angle between the first outer oil mesh enclosure 328 in the left and right extension direction and the horizontal plane.

[0159] The tilt angle of the first outer oil mesh enclosure 328 along the second direction corresponds to the angle between the first outer oil mesh enclosure 328 in the front-to-back extension direction and the horizontal plane.

[0160] In this embodiment, by setting the first outer oil mesh enclosure 328 to be tilted forward and backward and tilted left and right, when oil droplets fall onto the first outer oil mesh enclosure 328, they can flow downward along the first outer oil mesh enclosure 328. At the same time, by reasonably setting the tilt angle, the oil droplets and the first outer oil mesh enclosure 328 can maintain a suitable friction force when flowing downward, so that they will not drip everywhere due to too fast a flow rate, nor will they fail to enter the oil tank 310 due to too slow a flow rate.

[0161] A first oil guide passage 3282 is formed between adjacent first air inlets 3281, and a second oil guide passage 3292 is formed between adjacent second air inlets 3291.

[0162] Specifically, this embodiment uses a single oil droplet as an example for analysis and explanation: like Figure 1 As shown, when an oil droplet falls onto the first outer oil mesh enclosure 328, F1 is the component of the oil droplet's unit weight in the left-right tilting direction of the first outer oil mesh enclosure 328; F2 is the component of the oil droplet's unit weight in the front-back tilting direction of the first outer oil mesh enclosure 328; α is the left-right tilting angle of the first outer oil mesh enclosure 328 under normal installation conditions, preferably α is 13.6°; β is the front-back tilting angle of the first outer oil mesh enclosure 328 under normal installation conditions, preferably β is 16°. F1=mg*sin13.6=0.235, F2=mg*sin16=0.276 When the optimal oil droplet flow direction is achieved, the force composition is: γ = arctan(F1 / F2) = 40.4°, where γ is the angle between the flow direction of the oil droplet on the first outer oil mesh enclosure 328 and the first side 3271.

[0163] The direction of the resultant force of the oil droplet in the first and second directions corresponds to the direction of the force on the oil droplet on the inclined surface of the first outer oil mesh 328. When the oil droplet is subjected to force, the direction of the force corresponds to the direction of the oil droplet flow. When the oil droplet falls, it will flow downward along the inclined surface of the first outer oil mesh 320 in the direction of the resultant force.

[0164] To ensure that the oil droplets flow down along the first oil guide path 3282, the resultant force on the oil droplets should be in the same direction as the first oil guide path 3282 during the setting process. That is, the oil path through which the oil droplets flow should be at the optimal oil path angle, ensuring that the collected oil droplets are smoothly guided.

[0165] In a specific setting, the angle between the center line of the first oil guide path 3282 and the first side 3271 is set to 40.4°, so that the direction of the resultant force of the oil droplet is the same as the angle between the first side 3271 and the oil droplet. This way, the oil droplet falling on the outer oil mesh 320 can flow down along the first oil guide path 3282.

[0166] To achieve safety protection, this embodiment also provides an outer oil mesh flange 324 on the outer oil mesh enclosure, and an annular folding rib 325 is provided on the outer oil mesh flange 324. An annular oil guide groove 326 is formed between the annular folding rib 325, the outer oil mesh flange 324 and the outer oil mesh enclosure, and a folded protective edge that bends inward toward the annular oil guide groove 326 is formed on the top surface of the annular folding rib 325.

[0167] The inner oil mesh 330 is adapted to the shape of the outer oil mesh 320, and the inner oil mesh 330 includes: The inner oil mesh diversion component 333 and the inner oil mesh enclosure 334 disposed around the inner oil mesh diversion component 333 have multiple mesh holes 335 evenly arranged on the inner oil mesh enclosure 334. The size of the mesh holes 335 is much smaller than the size of the first oblique elongated hole and the second oblique elongated hole, which can achieve a certain degree of shielding of oil droplets.

[0168] In this embodiment, the double-layer oil mesh structure can increase the air intake area and achieve a large air volume intake by using multiple first oblique elongated holes and multiple second oblique elongated holes on the first outer oil mesh enclosure 328 and the second outer oil mesh enclosure 329. Meanwhile, the inner oil mesh 330 forms a mesh 335 plate structure with multiple mesh holes 335, which can block most of the oil droplets that are about to drip, thus preventing a large number of oil droplets from dripping directly onto the stove. In this embodiment, the inner oil mesh 330 with mesh holes 335 and the outer oil mesh 320 with oblique elongated holes work together to block most of the oil droplets while ensuring the air intake of the entire range hood, thus preventing too many oil droplets from dripping directly onto the stove.

[0169] Specifically, the inner oil mesh enclosure 334 in this embodiment also includes two oppositely arranged first inner oil mesh enclosures 3341 and two oppositely arranged second inner oil mesh enclosures 3342. The first inner oil mesh enclosures 3341 and the first outer oil mesh enclosure 328 are positioned correspondingly and adapted to their shapes. Multiple inclined first protrusions 3343 are provided on the outer side wall of the first inner oil mesh enclosure 3341. A first inner oil mesh guiding oil passage 3345 is formed between adjacent first inclined protrusions 3343. Oil flowing down along the inner oil mesh diversion component 333 or oil droplets directly condensed on the inner oil mesh 330 can flow down along the first inner oil mesh guiding oil passage 3345 to the outer oil mesh 320 and then enter the oil tank 310.

[0170] The first inclined protrusion 3343 forms the first inner oil mesh guide oil passage 3345, which can achieve a better guiding effect on the oil and prevent the oil on the inner oil mesh 330 from flowing around.

[0171] Multiple second inclined protrusions 3344 are provided on the outer wall of the second inner oil mesh enclosure 3342, and a second inner oil mesh guiding oil passage 3346 is formed between two adjacent second inclined protrusions 3344. The second inner oil mesh guiding oil passage 3346 can guide the oil.

[0172] Preferably, the centerline of the first inclined protrusion 3343 is adapted to the shape of the first air inlet 3281 and corresponds to the position of the first air inlet 3281, and the second inclined protrusion 3344 and the second air inlet 3291 are adapted to the shape and correspond to the position of the second air inlet 3291.

[0173] This embodiment also proposes an oil receiving component 600 for guiding oil in the oil tank 310. The oil receiving component 600 is assembled on the smoke collection shell 110, and an oil receiving cavity 610 is formed inside the oil receiving component 600. The oil receiving component 600 also includes an oil receiving inlet 620 communicating with the oil receiving cavity 610 and an oil guiding outlet 630 guiding the oil outward. Preferably, the oil inlet 620 is an oil inlet and the oil outlet guide 630 is an oil outlet guide, which can be directly formed at the bottom of the oil receiving component 600, and an oil outlet guide cavity is formed inside. Preferably, the oil outlet guide is an oil outlet nozzle.

[0174] The oil receiving component 600 is elongated and arranged along the length of the smoke collecting shell 110. It is located inside the cavity 111 of the smoke collecting shell 110, thus achieving a hidden arrangement and enhancing aesthetics.

[0175] A reinforcing member 660 is also provided on the outer surface of the oil receiving component 600. Multiple reinforcing members 660 are provided and are equally spaced along the length direction of the oil receiving component 600. The reinforcing member 660 can be an oil receiving box reinforcing rib 160 provided along the height direction of the oil receiving component 600. It is long and strip-shaped and is used to enhance the strength of the entire oil receiving component 600.

[0176] To guide the oil in the oil tank 310, the insertion part 311 in the oil tank 310 is inserted through the vertical step part 1321 and extends into the oil inlet part 620, so that the oil in the oil tank 310 can be introduced into the oil receiving part 600.

[0177] The oil inlet 620 is formed on the side wall of the oil receiving component 600. An oil receiving guide arm 650 extending outward is formed on the side wall of the oil receiving component 600 below the oil inlet 620. The oil receiving guide arm 650 and the insertion part 311 are at least partially attached to each other to achieve better oil reception and guidance.

[0178] Preferably, the oil receiving guide arm 650 is inclined, and its inclined direction and inclination angle are the same as those of the insertion part 311, so as to better match the oil receiving guide arm 650.

[0179] Preferably, the oil guide tongue inserted on the oil tank 310 is inclined toward the oil inlet 620 so as to quickly guide the oil into the oil receiving component 600.

[0180] The structure for inserting the oil guide tongue is preferably configured to include an inclined bottom wall and oil guide tongue sidewalls disposed on both sides of the bottom wall, so as to avoid oil overflow during oil guiding.

[0181] To facilitate the assembly of the oil receiving component 600, an installation position 112 is formed in the cavity 111, and the oil receiving component 600 is disposed in the installation position 112. Specifically, a raised platform 113 is formed on the smoke collecting shell 110, and the installation position 112 is formed between the smoke collecting shell 110 and the raised platform 113.

[0182] A locking step 132 is provided on the raised platform 113, and the oil receiving component 600 is adapted to the shape of the locking step and locked onto the locking step 132. The locking step 132 is annular, and the oil receiving component 600 is locked onto the rear side of the locking step 132.

[0183] The mounting position 112 is preferably a mounting groove, which is adapted to the shape of the oil receiving component 600. During assembly, the oil receiving component 600 is inserted into the mounting groove and locked onto the locking step 132.

[0184] Preferably, the oil receiving component 600 in this embodiment includes an oil receiving box body 641 and an oil receiving cover body 642. The oil receiving cover body 642 is fixedly connected to the oil receiving box body 641 and forms a closed oil receiving cavity 610 with the oil receiving box body 641.

[0185] Preferably, the oil receiving cover 642 is made of two parts riveted together, and the oil receiving cover 642 and the oil receiving box 641 are fixed together by screws.

[0186] A guide hole 114 is provided on the smoke collection shell 110 at a position corresponding to the oil outlet guide section 630. Specifically, the guide hole 114 is provided at the position where the installation position 112 is provided on the smoke collection shell 110, and is provided through the smoke collection shell 110. The oil discharged from the oil outlet guide section 630 can flow out through the guide hole 114.

[0187] Multiple guide holes 114 can be provided, and multiple outlet oil guide nozzles are also provided accordingly, and they are evenly spaced along the length direction of the oil receiving component 600.

[0188] Furthermore, an mounting platform 670 is formed on the oil receiving box 641, and a connecting boss 680 for connecting the oil receiving box 641 to the smoke collecting shell 110 is provided on the mounting platform 670. A threaded locking hole 681 is provided on the connecting boss 680, and a clearance part 690 is also provided on the oil receiving box 641.

[0189] The mounting platform 670 is formed on the oil receiving box body 641. During connection, screws are driven into the locking step 132 of the connecting boss 680 and the smoke collection shell 110 for fixing. After fixing, the oil receiving cover body 642 is fixed on the oil receiving box body 641, and the connection and mating structure is shielded and fixed.

[0190] When installing the oil receiving box 641, first insert it into the installation position 112, then snap it onto the locking platform, and then screw it into the threaded hole on the connecting boss 680 to lock and fix it with the smoke collection shell 110.

[0191] In this embodiment, the range hood also includes an oil cup 800, which is mainly used to receive oil flowing out from the oil receiving component 600. Oil flowing out from the guide hole 114 can flow directly into the oil cup 800. In order to achieve quick installation and fixation of the oil cup 800, this embodiment also proposes an oil cup hanging component 700, which can be made of reinforced nylon. The oil cup hanging component 700 is mainly used to connect the oil cup 800 and the smoke collection shell 110.

[0192] Preferably, the oil cup holder 700 described in this embodiment includes: Hanging body 710; An elastic foot 720 extends upward from the mounting body 710, and a clamping part 730 is formed between the elastic foot 720 and the mounting body 710. An assembly channel 740 is formed between the elastic foot 720 and the hanging body 710, and one end has an assembly port 741. The mounting body 710 includes: The first hanging body component 711, the elastic foot 720 extends from the first hanging body component 711, the first hanging body component 711 is preferably the first hanging body plate, the elastic foot 720 is formed by bending upward from one end of the first hanging body plate, the elastic foot 720 can be directly integrally formed with the first hanging body component 711 through the mold during molding.

[0193] Since the elastic foot 720 is formed by extending upward from the first mounting body component 711 and is elastic, it can undergo elastic deformation when subjected to external force and has space for deformation above it, so that it can deform to meet the actual installation requirements.

[0194] The second mounting body component 712 is disposed below and connected to the first mounting body component 711. The second mounting body component 712 is preferably a second mounting body 710 plate, which is disposed parallel to the first mounting body component 711 and has a gap between it and the first mounting body component 711. The clamping part 730 and the assembly channel 740 are formed between the second mounting body 710 plate and the elastic foot 720.

[0195] Oil cup 800, with an oil-containing cavity 810 formed inside, is used to collect and store oil from the range hood.

[0196] A hanging portion 820 is formed on the oil cup 800. Specifically, the hanging portion 820 is a bent arm formed by bending from the top of the side wall of the oil cup 800 toward the inside of the oil cup 800. The oil cup 800 is inserted into the hanging body 710 and the elastic foot 720 along the assembly channel 740 through the hanging portion 820 and is clamped and fixed by the clamping portion 730.

[0197] In this embodiment, during assembly, the oil cup 800 can be slidably installed between the elastic foot 720 and the hanging body 710 from the assembly port 741 position via the hanging part 820 above it. During the sliding process, a force is applied to the elastic foot 720, causing the elastic foot 720 to deform, thereby allowing the hanging part 820 to continue sliding. When it slides into place, the elastic foot 720 clamps and fixes the hanging part 820 through the reverse elastic restoring force it generates.

[0198] In this embodiment, the oil cup 800 mounting structure is simple to install. Simply slide the hanging part 820 of the oil cup 800 along the assembly channel 740 to overcome the force of the elastic foot 720 and clamp it in place. The installation is simple and convenient. For disassembly, simply pull the hanging part 820 outwards along the assembly channel 740 to overcome the force of the elastic foot 720 and pull it outwards. Disassembly is also simple and convenient, enabling quick installation and disassembly.

[0199] To more firmly clamp and fix the oil cup 800, in this embodiment, a protrusion 7111 is provided on the elastic foot 720, and an avoidance notch 7121 is formed on the second hanging body component 712 opposite to the protrusion 7111, with the protrusion 7111 partially located within the avoidance notch 7121.

[0200] Since the protrusion 7111 extends into the clearance notch 7121, when the hanging part 820 of the oil cup 800 is to be clamped and fixed between the second hanging body component 712 and the elastic foot 720, the elastic foot 720 needs to be pushed upward from the clearance notch 7121. After the hanging part 820 of the oil cup 800 is assembled in place, if the elastic foot 720 needs to be reset, it needs to be reset to the position located in the clearance notch 7121, which will generate a large elastic force to act on the hanging part 820, tightly clamping the hanging part 820 between it and the second hanging body component 712, so as to achieve a more secure assembly of the oil cup 800.

[0201] Meanwhile, in this embodiment, an avoidance notch 7121 is provided at the corresponding position of the protrusion 7111, which can facilitate mold forming and film extrusion, and facilitate processing and production.

[0202] To enable rapid installation and assembly of the oil cup 800, in this embodiment, the assembly channel 740 is configured such that the height of the portion from the assembly port 741 to the portion corresponding to the protrusion 7111 continuously decreases along the assembly direction of the oil cup 800.

[0203] The assembly channel 740 near the assembly port 741 is high, which facilitates the quick insertion of the oil cup 800. The assembly channel 740 is lower closer to the protrusion 7111, which ensures that the oil cup 800 is gradually squeezed and fixed from the assembly port 741 to the protrusion 7111 during the installation process, making the assembly process more labor-saving and easy to install quickly.

[0204] A stop component 713 is connected to the end of the first hanging body component 711 and the second hanging body component 712 away from the assembly port 741. It can abut against the hanging part 820 to limit the oil cup 800 when it is assembled. Preferably, the stop component 713 is a stop flange, which is set perpendicular to the first hanging body component 711 and the second hanging body component 712.

[0205] Preferably, the blocking component 713 can be integrally formed with the first hanging body component 711 and the second hanging body component 712 during molding.

[0206] In this embodiment, the blocking component 713 can wrap around the side wall of the range hood mounting body 710 and abut against the side wall of the range hood mounting body 710 after the oil cup hanger 700 is assembled in place, so as to limit the entire oil cup hanger 700, prevent the oil cup hanger 700 from rotating after being assembled in place, and ensure the stability of the oil cup 800 after installation.

[0207] In some preferred embodiments, two elastic feet 720 are provided, which are arranged opposite to each other on both sides of the first hanging body component 711. The two elastic feet 720 form two assembly channels 740 and clamping parts 730 with the first hanging body component 711 respectively, so as to achieve symmetrical arrangement. This structural arrangement not only facilitates the mold to produce film and facilitates molding, but also enables interchangeable installation of the left and right sides.

[0208] A second locking hole 115 is provided on the smoke collection shell 110. In this embodiment, a first locking hole 7122 is provided on the second hanging body component 712. The first locking hole 7122 is a through hole, and the second locking hole 115 is a second locking threaded hole. The locking bolt is assembled in the first locking hole 7122 and the second locking hole 115 to lock and fix the oil cup hanging component 700 and the smoke collection shell 110.

[0209] Specifically, in this embodiment, when the range hood is running, the oily fumes drawn in by the volute 220 assembly located inside the main box 200 are thrown into the volute 220 by the high-speed rotating impeller and accumulate inside the volute 220. This can cause oil accumulation inside the volute 220, which may directly drip through the oil filter onto the stovetop. Similarly, the absorbed fumes will enter the main box 200 through the smoke guide channel between the connecting component 500 and the main box 200. Small oil droplets will inevitably adhere to the side wall of the main box 200. After the oil droplets accumulate, they may pass through the oil filter component 300 and drip onto the stovetop, affecting the user's use.

[0210] Meanwhile, when the range hood is working and adsorbing oil fumes, the adsorbed oil fumes will inevitably pass through the oil filter. The oil fumes that condense and accumulate in the oil filter and flow back are also one of the main sources of oil fumes generated by the range hood.

[0211] In order to guide the oil droplets on the top of the main tank 200, this embodiment provides a main tank oil guiding component 240, which is connected to the top wall 214 of the main tank and the volute 220, and is used to guide the oil on the top wall 214 of the main tank to the volute 220.

[0212] In a specific configuration, the main tank oil guiding component 240 includes: The inclined guide arm 241 is connected and fixed to the top wall 214 of the main box. The inclined guide arm 241 can be fixed to the top wall 214 of the main box by screws. Its inclined setting can not only be used to receive oil droplets dripping from the top wall 214 of the main box, but also to guide the oil droplets.

[0213] The connecting arm 242 is connected to the inclined guide arm 241 and is set to fit against the end face of the volute 220.

[0214] Oil droplets dripping from the inclined guide arm 241 can be guided to the connecting arm 242 that fits the end face of the volute 220, and the guided oil droplets will drip downwards along the direction of the connecting arm 242.

[0215] The oil guiding component 230 of the volute is located below the volute 220 and is used to receive oil droplets dripping from the volute 220 opening and the oil guiding component of the main box 200. Oil droplets dripping from the connecting arm 242 of the main tank oil guide component 240 will drip onto the volute oil guide component 230 and be collected by the volute oil guide component 230. At the same time, oil droplets in the mouth of the volute 220 are also collected into the volute oil guide component 230.

[0216] Specifically, the volute oil guiding component 230 and the volute 220 are fixedly connected, and an oil guiding groove 231 is formed inside the volute oil guiding component 231 that is inclined toward the second connecting member 520. The inclined arrangement of the oil guiding groove 231 can achieve a better guiding effect on the oil droplets.

[0217] The volute oil guide groove 231 has a volute oil inlet 232 and a volute oil outlet 233. A volute oil guide tongue 244 is also provided at the volute oil outlet 233 to guide the oil towards the second connector 520.

[0218] The oil inlet 232 of the volute is located at the top of the oil guiding component 230 of the volute. Connecting arms 242 are provided on both sides of the oil inlet 232 of the volute. The connecting arms 242 are connected and fixed to the bottom of the volute 220. The length of the oil guiding component 230 of the volute extends beyond the outer contour of the volute 220 so that the oil droplets on the main oil guiding component 240 can fall into its interior.

[0219] The oil outlet 233 of the volute is located at the other end of the oil guide component 230 of the volute, and is used to discharge the oil in the oil guide component 230 of the volute. In order to guide the oil droplets, the oil guide tongue 244 of the volute is inclinedly arranged at the oil outlet 233 of the volute and inclined towards the second connector 520. Preferably, the second guide part 522 of the second connector 520 is located below the oil guide tongue 244 of the volute, so that the oil droplets dripping from the oil guide tongue 244 of the volute can just drip onto the second connector 520 and be discharged downward by the second connector 520.

[0220] To guide the oil droplets on the side wall 211 of the first main tank and prevent them from falling onto the stovetop, this embodiment also includes: The first oil guide 250 is disposed at the bottom end of the first main box side wall 211 and is used to collect oil droplets on the first main box side wall 211. The oil-collecting and guiding part 251 extends from one end of the first main tank side wall 211 to the other end of the first main tank side wall 211, and can completely collect the oil droplets on the first main tank side wall 211, preventing the oil droplets on the first main tank side wall 211 from falling.

[0221] The second connector 520 is disposed near the end of the first oil guide 250 and can be used to receive oil droplets in the first oil guide 250.

[0222] Specifically, the first oil guide 250 includes: The first connecting member 252 is connected to the first connecting piece 510. Preferably, in this configuration... The first connector 510 is configured as a first connecting plate comprising a first connecting portion 511, a second connecting portion 512, a first guide portion 513, and a guide connecting portion 514, and is an integrally formed part. The first connecting member 252 is connected to the second connecting portion 512, which is folded outward relative to the main box 200.

[0223] The first connecting member 252 is preferably a first oil guide connecting plate, which is attached to the second connecting part 512 and fixedly connected by screws and the second connecting part 512.

[0224] The second connecting member 253 is connected to the first connecting member 252 and is inclined toward the inside of the main box 200. The second connecting member 253 is preferably a second oil guide connecting plate, which is connected to the first oil guide connecting plate. The third connecting member 254 is inclined and connected to the second connecting member 253. The oil-bearing and oil-guiding part 251 is formed between the third connecting member 254 and the second connecting member 253. The third connecting member 254 is located on the inner side of the first main box side wall 211.

[0225] The second connecting member 253 is inclined, with part of it located outside the main box 200 and part located inside the main box 200. The third connecting member 254 is located inside the main box 200. This ensures that oil droplets dripping from the side wall 211 of the first main box will fall into the oil receiving and guiding part 251, thus achieving effective oil collection.

[0226] Preferably, the oil-bearing and guiding part 251 is an oil-bearing and guiding groove 310, which is inclined toward the second connecting member 520.

[0227] The third connecting member 254 is preferably a third oil guide connecting plate.

[0228] Furthermore, an oil guiding cavity with one side open is formed in the first oil guiding member 250, and the minimum inner diameter of the cross-section of the cavity 111 corresponding to the direction away from the second connector 520 and towards the second connector 520 gradually increases.

[0229] The internal space of the cavity 111 corresponding to the oil guiding cavity formed by the first oil guiding component 250 is larger as it gets closer to the second connecting component 520. This allows the oil droplets collected in the oil-collecting and guiding groove 310 to be quickly and smoothly guided into the second connecting component 520, thus achieving a rapid guiding effect.

[0230] To ensure that oil droplets on the side wall 213 of the third main tank can also be collected and prevented from dripping, this embodiment is designed such that the orthographic projection of the side wall 213 of the third main tank onto the bottom wall of the oil tank 310 lies within the area formed by the outline of the bottom wall of the oil tank 310. This guarantees that oil droplets dripping from the side wall 213 of the third main tank can drip directly into the oil tank 310 without overflowing.

[0231] To guide the oil droplets on the third main box side wall 213 located in front of the main box 200, this embodiment can be achieved by guiding them through the third connector 530 connected to the third main box side wall 213.

[0232] Of course, the third connector 530 structure can be omitted during setup, allowing the oil droplets to fall directly into the oil tank 310.

[0233] The second connector 520 can also be used to receive oil droplets discharged from the second main box side wall 212. It is located at the bottom of the second main box side wall 212 and can directly receive oil droplets dripping from the second main box side wall 212.

[0234] Oil droplets on the volute oil guide component 230, the first oil guide component 250, and the second main box side wall 212 mainly drip onto the second guide part 522, i.e. the second guide plate, and then continue to drip down along the wall of the second guide plate.

[0235] The oil filter assembly 300 is mounted on the smoke collection shell 110 and located below the main box 200; A first oil inlet channel is formed between the inner oil mesh 330 and the outer oil mesh 320, and a second oil inlet channel connected to the oil trough 310 is formed between the outer oil mesh 320 and the oil trough 310.

[0236] The outer oil mesh 320 has an annular oil guide groove 326 around its perimeter. The first oil inlet channel is a first oil guide hole located on the inner oil mesh flange 331 and connected to the annular oil guide groove 326. The second oil inlet channel is a second oil guide hole located on the annular guide groove and connected to the oil groove 310.

[0237] Oil droplets entering the inner oil mesh 330 will be guided to both sides by the action of the inner oil mesh diversion component 333, and guided to the first inner oil mesh oil guide path 3345 or the second inner oil mesh oil guide path 3346 on the outer wall of the inner oil mesh. Finally, they will flow into the inner oil mesh flange 331 at the bottom of the inner oil mesh 330, and then enter the annular oil guide groove 326 around the outer oil mesh 320 through the first oil guide hole, and finally flow into the oil groove 310 through the second oil guide hole.

[0238] The oil droplets that fall onto the outer oil mesh 320 can be guided by the outer oil mesh diversion component 327 to the first oil guide path 3282 and the second oil guide path 3292, and finally fall into the annular oil guide groove 326 at the bottom of the outer oil mesh 320, and then enter the oil groove 310 through the second oil guide hole.

[0239] A first oil guiding channel is formed between the main tank oil guiding component 240, the volute oil guiding component 230, the second connector 520, and the oil mesh assembly 300. That is, the oil droplets collected at the top of the main tank 200 will pass through the main tank oil guiding component 240 and enter the volute oil guiding component 230. The oil droplets in the volute oil guiding component 230 will drip onto the second connector 520. Guided by the second connector 520, they will drip onto the inner oil mesh flange 331. Through the first oil guiding hole of the inner oil mesh flange 331, they will enter the annular oil guiding groove 326, and then through the second oil guiding hole, they will enter the oil groove 310, thus realizing the collection of oil droplets on the top wall 214 of the main tank.

[0240] Meanwhile, the oil droplets collected on the oil guide component 230 in the volute 220 are collected through the oil guide component 230, the second connector 520 and the oil mesh assembly 300.

[0241] A second oil guiding channel is formed between the first oil guiding component 250, the second connecting component 520, and the oil mesh assembly 300; Oil droplets dripping from the side wall 211 of the first main tank are collected by the first oil guide 250 and then slide onto the second connector 520. They then enter the first oil guide hole of the inner oil mesh 330 and the second oil guide hole of the outer oil mesh 320, thus collecting the oil droplets on the side wall 211 of the first main tank.

[0242] Meanwhile, when the range hood is in operation, the fumes will pass through the oil filter assembly 300. Some of the fumes will condense on the oil filter assembly 300 after the range hood is turned off. Since both the outer oil filter 320 and the inner oil filter 330 in this embodiment are conical structures, the oil on the inner oil filter 330 will flow out downwards along the wall of the inner oil filter 330, and then enter the oil tank 310 through the first oil guide hole and the second oil guide hole.

[0243] Similarly, the oil collected on the outer oil mesh 320 will flow to the annular oil guide groove 326 of the outer oil mesh 320, and then enter the oil groove 310 through the second oil guide hole.

[0244] The oil droplets collected on the inner oil mesh 330 and the outer oil mesh 320 eventually all flow into the oil tank 310.

[0245] The oil receiving component 600 is used to receive oil droplets output from the oil mesh assembly 300. Specifically, it is mainly used to receive oil in the oil tank 310. The oil receiving component 600 mainly stores oil through the oil receiving cavity 610 formed inside it. The oil inlet 620 is used to receive oil, and the oil outlet guide 630 can discharge oil. In order to introduce oil from the oil tank 310 into the oil receiving component 600, the insertion part 311 extends into the oil inlet 620 to guide the oil from the oil tank 310 into the oil receiving cavity 610.

[0246] An oil cup 800 is installed on the smoke collection shell 110 to receive oil droplets discharged by the oil receiving component 600, and an oil collection channel is formed between the oil mesh assembly 300, the oil receiving component 600 and the oil cup 800.

[0247] That is, the oil collected in the oil tank 310 flows into the oil through multiple oil guide channels and finally converges into the oil cup 800 through the oil collection channel.

[0248] In this embodiment, the range hood uses a first oil guiding channel to collect oil from the top wall 214 of the main chamber and the volute 220, a second oil guiding channel to collect oil from the side wall 211 of the first main chamber, and a third oil guiding channel to collect oil from the external oil screen 320 and the internal oil screen 330. Simultaneously, all the oil collected in the oil trough 310 is gathered into the oil cup 800 for final collection. Through these multiple cooperating oil guiding channels, oil is collected from components of the range hood where oil may accumulate, effectively preventing oil dripping and improving the user experience.

[0249] In this embodiment, the oil receiving component 600 and the insertion part 311 on the oil tank 310 cooperate to guide all the oil collected in the oil tank 310 into the oil receiving component 600 through the insertion part 311. The large-diameter oil path that is collected passes through the inside of the smoke collection chamber 120, but does not flow through the wall of the smoke collection chamber 120 and come into contact with it. This not only ensures that when the oil path passes through the smoke collection chamber 120, the inside of the smoke collection chamber 120 is not sticky with oil and does not accumulate oil, thus maintaining a clean internal environment and not affecting the normal operation of the components inside the smoke collection chamber 120, but also improves and dredges the oil path, making the oil path flow smoothly.

[0250] Preferably, in this embodiment, the oil tank 310 is located below the fourth connecting part 523, and the orthographic projection of the fourth connecting part 523 on the bottom surface of the oil tank 310 is located within the area formed by the outline of the bottom surface of the oil tank 310. This ensures that all the oil collected and guided from the second connecting member 520 can flow into the oil tank 310 without oil leakage.

[0251] To achieve better oil guiding effect, in this embodiment, the second guide portion 522 and the third connecting portion 521 are arranged at an angle of 110-130 degrees.

[0252] The above embodiments are only used to illustrate the technical solutions of the present invention, and are not intended to limit them. Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the spirit and scope of the technical solutions claimed by the present invention.

Claims

1. A range hood, characterized in that, Including: The smoke collection shell is equipped with an installation port; The main box is located above the smoke collection shell, and a smoking device is installed inside the main box; A connecting assembly connects the mounting port of the smoke collection shell to the main box. A smoke guiding cavity is formed inside the connecting assembly. The diameter of the smoke guiding cavity varies. Along the direction of oil fume flow, the inner diameter is larger near the smoke collection shell, reaches its maximum at the middle position, and then decreases as it approaches the main box. The diameter of the smoke guiding cavity at the connection end with the mounting port is larger than the diameter at the connection end with the main box. A smoke guiding channel is formed between the smoke collection cavity, the oil mesh assembly, the connecting assembly, and the main box. The main container includes a first main container side wall located on both sides of the main container and a second main container side wall located at the rear of the main container; The connection component includes: The first connector has two parts, including: The first connecting part is connected to the side wall of the first main box; The second connecting part is formed by bending from the first connecting part toward the side away from the main box; A first guide portion is connected to the second connecting portion, and the first guide portion is inclined away from the main box side; The guide connection part is connected and fixed to the first guide part and the smoke collection shell; The second connector mates with the two first connectors and is fixedly connected to the side wall of the second main box and the smoke collection shell, respectively.

2. The range hood according to claim 1, characterized in that, A cavity is formed inside the smoke collection shell, and a smoke collection chamber is formed on the smoke collection shell that is recessed and inclined towards the cavity side. The depth of the smoke collection chamber gradually decreases from the side closer to the user to the side farther away from the user.

3. The range hood according to claim 2, characterized in that, The smoke collection chamber includes: The first component is tilted, and its height near the user is greater than its height away from the user. The second component is connected to one side of the first component and is inclined, with its orthographic projection onto the first component located outside the outline of the first component. The third component is disposed opposite to the second component, connected to the other side of the first component, and is disposed at an angle, with its orthographic projection onto the first component located outside the outline of the first component. The fourth component, consisting of two parts, is connected to the opposite side of the first component. Its two ends are respectively connected to the end connections of the second and third components, and its orthographic projection onto the first component is located outside the outline of the first component.

4. The range hood according to claim 2, characterized in that, The oil mesh assembly is assembled at the mounting port and recessed towards the cavity side to form a recessed cavity, which is connected to the smoke collection cavity.

5. The range hood according to any one of claims 1, 2, or 4, characterized in that, A first insertion part and a second insertion part are provided around the mounting port; The connecting component, assembled and fixed on the smoke collection shell, includes: The fixing part is used to connect with the smoke collection shell; Locking part; An elastic pressure-bearing component is fitted inside the connecting component and partially extends out of the connecting component; An oil trough, installed on the smoke collection shell and arranged circumferentially along the mounting opening, includes: An insertion part, used to cooperate with the first insertion part; The locking part is used to engage with the elastic pressing component. An outer oil screen is disposed above the oil tank and includes an oil screen claw that cooperates with the second insertion part and a fixing part that cooperates with the locking part. The first locking component is used to cooperate with the fixing part and the locking part to lock and fix the outer oil screen and the range hood shell; An inner oil mesh, with an inner oil mesh flange around its perimeter; The elastic pressing part is provided on the outer oil mesh and is pressed onto the flange of the inner oil mesh.

6. The range hood according to claim 5, characterized in that, A volute assembly is provided inside the main housing. A main housing oil guide component is connected between the main housing and the volute assembly. A volute oil guide component is provided below the volute assembly. The volute oil guide component is mounted on the main housing.

7. The range hood according to claim 6, characterized in that, It also includes: The first oil guide, connected to the first connecting portion, includes: The oil-receiving and guiding part is used to receive and guide the oil flowing down the side wall of the first main tank. The oil-receiving and guiding part extends from one end of the side wall of the first main tank to the other end of the side wall of the first main tank. The second connecting member is close to the end of the first oil guiding member to guide the oil in the first oil guiding member.

8. The range hood according to claim 6, characterized in that, The second connector includes: The third connecting part is used to connect and fix the second connecting piece and the side wall of the second main box; The second guide portion is connected to the third connecting portion and is inclined toward the oil tank side; The fourth connecting part is connected and fixed to the second guide part and the smoke collection shell.

9. The range hood according to claim 5, characterized in that, An oil receiving component is assembled on the smoke collecting shell, and an oil receiving cavity is formed inside the oil receiving component. The oil receiving component also includes an oil receiving inlet that communicates with the oil receiving cavity and an oil guiding outlet that guides the oil outward. The insertion part extends into the oil receiving inlet to guide the oil in the oil tank into the oil receiving cavity.

10. The range hood according to claim 9, characterized in that, It also includes: An oil cup holder, fixedly connected to the smoke collection shell, includes: hanging body; An elastic foot extends from the mounting body and a clamping part is formed between the elastic foot and the mounting body; An assembly channel is formed between the elastic foot and the mounting body, with an opening at one end; An oil cup is used to receive oil discharged from an oil receiving component. A hanging part is formed on the oil cup. The oil cup is inserted into the hanging body and the elastic foot through the hanging part along the assembly channel and is clamped and fixed by the clamping part.

11. The range hood according to claim 5, characterized in that, The outer oil mesh includes: The external oil mesh diversion component includes two opposing first sides and two opposing second sides; The outer oil mesh enclosure includes: Two first outer oil mesh enclosures are provided, which are respectively connected to the two first side panels. Multiple first air inlets are provided on the first outer oil mesh enclosures at an incline and arranged above them. Two second outer oil mesh enclosures are provided, which are respectively connected to two second sides. The area of ​​the second outer oil mesh enclosure is smaller than that of the first outer oil mesh enclosure. Multiple second air inlets are provided on the second outer oil mesh enclosure, which are inclinedly arranged above it. The angle between the center line of the second air inlet and its adjacent second side is greater than the angle between the center line of the first air inlet and its adjacent first side.

12. The range hood according to claim 11, characterized in that, The inner oil mesh and the outer oil mesh are adapted to each other in shape. The inner oil mesh includes an inner oil mesh diversion component and an inner oil mesh enclosure plate disposed around the inner oil mesh diversion component. Multiple mesh holes are evenly arranged on the inner oil mesh enclosure plate.

13. The range hood according to claim 8, characterized in that, A first oil guiding channel is formed between the main oil guiding component, the volute oil guiding component, the second connector, and the oil mesh assembly; a second oil guiding channel is formed between the first oil guiding component, the second connector, and the oil mesh assembly.

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