CN217685212U

CN217685212U - Fume exhaust fan

Info

Publication number: CN217685212U
Application number: CN202220970300.2U
Authority: CN
Inventors: 唐兴旺; 袁柯铭
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2022-04-22
Filing date: 2022-04-22
Publication date: 2022-10-28
Anticipated expiration: 2032-04-22

Abstract

The utility model discloses a range hood, including the box and set up the fan frame above the box, be provided with the fan system in the fan frame, the inboard and fan system fluid intercommunication of box, be provided with the air inlet subassembly on the box, the air inlet subassembly includes hollow casing, be formed with first collection smoke chamber and second collection smoke chamber in the casing, first collection smoke chamber and second collection smoke chamber independently arrange with the interval about, first collection smoke chamber and second collection smoke chamber all communicate with the inboard fluid of box, set up first air intake and first air outlet corresponding with first collection smoke chamber and second air intake and second air outlet corresponding with second collection smoke chamber on the casing, first air outlet and second air outlet all communicate with the inboard fluid of box; the range hood further comprises a flow distribution device capable of controlling the air outlet flow of the first air outlet and the second air outlet. Compared with the prior art, the utility model has the advantages of: the single-sided oil smoke suction effect can be enhanced by the flow distribution of the left and right sides.

Description

Fume exhaust fan

Technical Field

The utility model relates to an oil smoke purifier, especially a range hood.

Background

The range hood is used as an essential kitchen appliance for each family, the range hood is used for sucking oil smoke from an air inlet through the impeller rotating at a high speed in the volute, filtering the oil smoke by using the impeller and discharging the filtered oil smoke from the air outlet, the purification work of kitchen air is completed, the reasonable air inlet is favorable for improving the oil smoke absorption effect, the escape of the oil smoke is reduced, and the air quality of the kitchen is improved.

Chinese utility model patent of application number 202122402075.0 discloses a range hood, including casing and the fan frame of setting in the casing top, be provided with the fan system in the fan frame, be formed with the air intake between casing and the fan frame, be formed with on the casing by the inside sunken smoke inlet chamber of front side surface, the air intake, smoke inlet chamber and fan system fluid intercommunication, the casing is including being located the air inlet board that is used for with oil smoke direction fan system that advances the smoke inlet intracavity, the air inlet board is extended towards the inboard top slope of casing by the lower part department of air intake, range hood still includes the cleaning device who is used for clean air inlet board.

The burner of a common household cooker is usually divided into a left burner and a right burner, a user sometimes only uses the burner on one side and sometimes uses both sides simultaneously in the cooking process, but the household cooker can often only fry on one side of the burner which can generate a large amount of oil smoke. If the user only uses the left furnace end to cook or uses the left side to cook and steam rice in the actual cooking process, the left oil smoke concentration and the oil smoke particle trend of the range hood are necessarily much larger than those of the right side, so that the oil smoke escape frequently occurs in the quick-frying cooking process. Obviously the promotion of impeller rotational speed will lead to the noise to increase by a wide margin, influences people healthy, and the stir-fry of actually cooking takes place in one side, and both sides promote the energy consumption waste that the amount of wind leads to one side in addition simultaneously.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that to the not enough of above-mentioned prior art existence, provide a range hood, can strengthen the oil absorption cigarette effect of unilateral through the flow distribution of the left and right sides.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a range hood, includes box and the fan frame of setting in the box top, be provided with the fan system in the fan frame, the inboard and the fan system fluid intercommunication of box, be provided with air inlet subassembly, its characterized in that on the box:

the air inlet assembly comprises a hollow shell, a first smoke collecting cavity and a second smoke collecting cavity are formed in the shell, the first smoke collecting cavity and the second smoke collecting cavity are independently arranged at left and right intervals, the first smoke collecting cavity and the second smoke collecting cavity are both communicated with the inner side of the box body in a fluid mode, a first air inlet and a first air outlet corresponding to the first smoke collecting cavity and a second air inlet and a second air outlet corresponding to the second smoke collecting cavity are formed in the shell, and the first air outlet and the second air outlet are both communicated with the inner side of the box body in a fluid mode;

the range hood also comprises a flow distribution device capable of controlling the air outlet flow of the first air outlet and the second air outlet.

In order to achieve a better flow distribution effect, the flow distribution device comprises a flow distribution part arranged on the box body, the flow distribution part is arranged between the first air outlet and the second air outlet, the inner side of the flow distribution part is in fluid communication with the fan system, the flow distribution part comprises a first flow distribution inlet arranged corresponding to the first air outlet and a second flow distribution inlet arranged corresponding to the second air outlet, and the total ventilation area of each of the first flow distribution inlet and the second flow distribution inlet can be changed, so that the air outlet flow of the first air outlet and the air outlet flow of the second air outlet are controlled.

For flow control, the flow distribution device comprises a flow distribution mechanism for controlling the total ventilation area of each of the first and second flow distribution inlets.

In order to realize the flow control of the flow distribution inlets, the flow distribution mechanism is provided with two flow distribution inlets which are respectively arranged corresponding to the first flow distribution inlets and the second flow distribution inlets, the flow distribution mechanism comprises a rotary disc which is rotatably arranged corresponding to the flow distribution inlets, spokes capable of opening or shielding the corresponding flow distribution inlets are formed on the rotary disc, the spokes radially extend to be radially arranged, through holes are formed between every two adjacent spokes, the first flow distribution inlets and the second flow distribution inlets are respectively provided with at least two radial distribution inlets, and the first flow distribution inlets and the second flow distribution inlets are both matched with the through holes in shape.

In order to drive the turntable to rotate, the turntable is located on the inner side of the flow distribution part, the flow distribution mechanism further comprises a base and a motor, the base is arranged on the inner side of the box body, the motor is arranged on the base, and the turntable is driven by the motor to rotate.

In order to drive the rotary table to rotate, the flow distribution mechanism further comprises a gear, the motor comprises an output shaft, the center of the gear is fixedly connected with the output shaft, the center of the rotary table is rotatably connected with the inner side of the box body, and a tooth part meshed with the gear is formed on the periphery of the rotary table.

In order to set up flow distribution portion for convenient, and then satisfy the corresponding position relation with two air outlets, first air intake and second air intake are seted up in the bottom of casing, first air outlet is located the rear side of first collection smoke chamber right-hand member portion, the second air outlet is located the rear side of second collection smoke chamber left end portion, the casing is being close to the rear side and is being located the position between first collection smoke chamber and the second collection smoke chamber and be formed with the breach, first air outlet is located the left side of breach, the second air outlet is located the right side of breach, flow distribution portion imbeds in the breach.

Preferably, be convenient for the connection of air inlet subassembly, flow distribution portion and box, flow distribution portion sets up the intermediate position at the bottom half, the left and right sides of bottom half holds the rear side in first collection smoke chamber and second collection smoke chamber respectively.

Compared with the prior art, the utility model has the advantages of: through setting up flow distributor, carry out flow control to the first air outlet in first collection smoke chamber and the second air outlet in second collection smoke chamber to can distribute the flow of the left and right sides, need not promote total amount of wind, in order to solve when the unilateral is exploded the stir-fry culinary art, the range hood's that corresponds with it homonymy can promote the oil absorption cigarette effect by a wide margin.

Drawings

Fig. 1 is an overall schematic view of a range hood according to an embodiment of the present invention;

fig. 2 is a bottom schematic view of the range hood according to the embodiment of the present invention;

fig. 3 is an exploded view of the front view of the range hood according to the embodiment of the present invention;

fig. 4 is an exploded view of a rear view angle of the range hood according to the embodiment of the present invention;

fig. 5 is an exploded view and a cross-sectional view of a rear view of the range hood according to the embodiment of the present invention;

fig. 6 is an exploded view of the flow distribution mechanism of the range hood according to the embodiment of the present invention;

fig. 7 is a schematic view of the second flow distribution inlet completely closed by the turntable of the flow distribution mechanism of the range hood according to the embodiment of the present invention;

fig. 8 is a schematic view of the turntable portion of the flow distribution mechanism of the range hood according to the embodiment of the present invention opening the second flow distribution inlet.

Detailed Description

The present invention will be described in further detail with reference to the following embodiments.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc. indicate the orientation or positional relationship indicated based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and do not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, since the disclosed embodiments of the invention can be arranged in different orientations, these directional terms are for illustrative purposes only and should not be considered as limiting, e.g., "upper" and "lower" are not necessarily limited to directions opposite to or consistent with the direction of gravity. Furthermore, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature.

Referring to fig. 1 to 5, a range hood includes a box body 1 and a fan frame 2 disposed above the box body 1, a fan system 3 is disposed in the fan frame 2, and the inner side of the box body 1 is in fluid communication with the fan system 3.

Be provided with air inlet subassembly 4 on the box 1, air inlet subassembly 4 is hollow box structure, and it includes casing 43, and in this embodiment, casing 43 is flat (flat on the upper and lower direction), is formed with first collection smoke chamber 41 and second collection smoke chamber 42 in the casing 43, and first collection smoke chamber 41 and second collection smoke chamber 42 control the interval and independently arrange. The first smoke collecting chamber 41 and the second smoke collecting chamber 42 are both in fluid communication with the inside of the cabinet 1. The range hood further includes a first air inlet 411 and a first air outlet 412 disposed corresponding to the first smoke collecting cavity 41, and a second air inlet 421 and a second air outlet 422 disposed corresponding to the second smoke collecting cavity 42. The first outlet port 412 and the second outlet port 422 are both in fluid communication with the inside of the case 1. The first air inlet 411 and the second air inlet 421 are opened at the bottom of the housing 43, the first air outlet 412 is located at the rear side of the right end of the first smoke collecting cavity 41, and the second air outlet 422 is located at the rear side of the left end of the second smoke collecting cavity 42.

Referring to fig. 3 to 5, the range hood further includes a flow distribution device capable of controlling the air outlet flow of the first air outlet 412 and the second air outlet 422. The flow distribution device includes a flow distribution portion 52 provided on the housing 1, and the housing 43 is formed with a notch 431 at a position near the rear side and between the first smoke collection chamber 41 and the second smoke collection chamber 42, and the first outlet 412 is located on the left side of the notch 431, and the second outlet 422 is located on the right side of the notch 431. The flow distributing portion 52 is disposed between the first outlet 412 and the second outlet 422, and is embedded in the gap 431. The inner side of the flow distributing part 52 is in fluid communication with the fan system 3. The flow distribution portion 52 includes a first flow distribution inlet 521 provided corresponding to the first outlet 412 and a second flow distribution inlet 522 provided corresponding to the second outlet 422. The first and second

flow distribution inlets

521 and 522 are radially arranged to have at least two flow distribution inlets. In the present embodiment, it is preferable that the flow distributing portion 52 is provided at a middle position of the bottom of the housing 1, and the left and right sides of the bottom of the housing 1 accommodate the rear sides of the first smoke collecting chamber 41 and the second smoke collecting chamber 42, respectively.

Referring to fig. 5 to 8, the flow distribution device further includes a flow distribution mechanism 51 for controlling the total ventilation area at each of the first and second

flow distribution inlets

521 and 522. The flow distribution mechanism 51 has two

flow distribution inlets

521 and 522. The flow distributing mechanism 51 includes a rotary plate 513 rotatably provided at the corresponding flow distributing inlet, and the rotary plate 513 is located inside the flow distributing portion 52. The rotating disc 513 is formed with spokes 5131 capable of opening or blocking corresponding flow distribution inlets, the spokes 5131 are provided with at least two and radially extend to form a radial arrangement, and a through hole 5132 is formed between two adjacent spokes 5131. Both the first 521 and second 522 flow distribution inlets are adapted to the shape of the through hole 5132, and preferably, each inlet is adapted to the size of the through hole 5132.

The flow distributing mechanism 51 further includes a base 511 and a motor 512. The base 511 is arranged on the inner side of the box body 1, the motor 512 is arranged on the base 511, and the turntable 513 is driven by the motor 512 to rotate. The flow distribution mechanism 51 further comprises a gear 514, the motor 512 comprises an output shaft 5121, the center of the gear 514 is fixedly connected with the output shaft 5121, the center of the rotary table 513 is rotatably connected with the corresponding side of the flow distribution portion 52, a tooth portion 5133 meshed with the gear 514 is formed on the periphery of the rotary table 513, so that the motor 512 drives the rotary table 513 to rotate, and in the rotating process of the rotary table 513, the flow distribution inlets are gradually opened from complete closing to the flow distribution inlets, and the total ventilation area of each flow distribution inlet is changed. Alternatively, an existing movement mechanism (rotation driving mechanism) may be used to drive the rotation of the turntable 513.

When the two burners of the two cookers cook simultaneously, then the first and second flow distribution inlets 521 and 522 are fully opened. At the moment, the two sides of the range hood smoke simultaneously so as to ensure that the oil smoke does not escape.

Assuming that the cooking is done quickly on the right side of the cooking range and the rice is steamed on the left side, the oil smoke amount on the right side is larger than that on the left side of the range hood, the total ventilation area of the first flow distribution inlet 521 is appropriately reduced by the flow distribution mechanism 51 on the left side, and Q = V × S according to the principle of fluid continuity, where Q is the air volume, V is the flow velocity, and S is the sectional area. Total air quantity of Q _{General assembly} Invariable, S _{Left side of} Decrease, then Q _{Left side of} Decrease, and Q _{General assembly} ＝Q _{Left side of} +Q _{Right side} I.e. Q _{Right side} The air volume of the second air inlet 421 on the right side is increased, and the smoking effect on the right side is enhanced. Stir-frying on the left side and vice versa.

Referring to fig. 7, when the range hood is closed, the first flow distribution inlet 521 and the second flow distribution inlet 522 can be completely closed by rotating the rotary disk 513, so that the air inlet is completely closed, and therefore, the smell of the smoke flowing backwards is prevented, or the peculiar smell in the range hood is prevented from being diffused into the kitchen environment.

The term "fluid communication" as used herein refers to a spatial relationship between two components or portions (hereinafter, referred to as a first portion and a second portion) in a unified manner, i.e., a fluid (gas, liquid or a mixture thereof) can flow along a flow path from the first portion or/and be transported to the second portion, and may be directly communicated between the first portion and the second portion, or indirectly communicated between the first portion and the second portion via at least one third member, which may be a fluid passage such as a pipe, a channel, a duct, a flow guide member, a hole, a groove, or a chamber allowing the fluid to flow therethrough, or a combination thereof.

Claims

1. The utility model provides a range hood, includes box (1) and sets up fan frame (2) in box (1) top, be provided with fan system (3) in fan frame (2), the inboard and fan system (3) fluid intercommunication of box (1), be provided with air inlet subassembly (4), its characterized in that on box (1):

the air inlet assembly (4) comprises a hollow shell (43), a first smoke collecting cavity (41) and a second smoke collecting cavity (42) are formed in the shell (43), the first smoke collecting cavity (41) and the second smoke collecting cavity (42) are independently arranged at left and right intervals, the first smoke collecting cavity (41) and the second smoke collecting cavity (42) are both in fluid communication with the inner side of the box body (1), a first air inlet (411) and a first air outlet (412) corresponding to the first smoke collecting cavity (41) and a second air inlet (421) and a second air outlet (422) corresponding to the second smoke collecting cavity (42) are formed in the shell (43), and the first air outlet (412) and the second air outlet (422) are both in fluid communication with the inner side of the box body (1);

the range hood also comprises a flow distribution device capable of controlling the air outlet flow of the first air outlet (412) and the second air outlet (422).

2. The range hood of claim 1, wherein: the flow distribution device comprises a flow distribution part (52) arranged on the box body (1), wherein the flow distribution part (52) is arranged between a first air outlet (412) and a second air outlet (422), the inner side of the flow distribution part (52) is in fluid communication with the fan system (3), the flow distribution part (52) comprises a first flow distribution inlet (521) arranged corresponding to the first air outlet (412) and a second flow distribution inlet (522) arranged corresponding to the second air outlet (422), and the total ventilation area of the first flow distribution inlet (521) and the total ventilation area of the second flow distribution inlet (522) can be changed, so that the air outlet flow of the first air outlet (412) and the air outlet flow of the second air outlet (422) are controlled.

3. The range hood of claim 2, wherein: the flow distribution device comprises a flow distribution mechanism (51) for controlling the total ventilation area at the first flow distribution inlet (521) and the second flow distribution inlet (522), respectively.

4. The range hood of claim 3, wherein: the flow distribution mechanism (51) is provided with two parts which are respectively arranged corresponding to a first flow distribution inlet (521) and a second flow distribution inlet (522), the flow distribution mechanism (51) comprises a rotary disc (513) which is rotatably arranged at the corresponding flow distribution inlet, spokes (5131) capable of opening or blocking the corresponding flow distribution inlet are formed on the rotary disc (513), the spokes (5131) radially extend and are radially arranged, a through hole (5132) is formed between every two adjacent spokes (5131), the first flow distribution inlet (521) and the second flow distribution inlet (522) are respectively provided with at least two parts which are radially distributed, and the first flow distribution inlet (521) and the second flow distribution inlet (522) are respectively matched with the through hole (5132) in shape.

5. The range hood of claim 4, wherein: the turntable (513) is located on the inner side of the flow distribution portion (52), the flow distribution mechanism (51) further comprises a base (511) and a motor (512), the base (511) is arranged on the inner side of the box body (1), the motor (512) is arranged on the base (511), and the turntable (513) is driven to rotate by the motor (512).

6. The range hood of claim 5, wherein: the flow distribution mechanism (51) further comprises a gear (514), the motor (512) comprises an output shaft (5121), the center of the gear (514) is fixedly connected with the output shaft (5121), the center of the rotary table (513) is rotatably connected with the corresponding side of the flow distribution portion (52), and a tooth portion (5133) meshed with the gear (514) is formed on the periphery of the rotary table (513).

7. The range hood according to any one of claims 2 to 6, wherein: first intake (411) and second intake (421) are seted up in the bottom of casing (43), first air outlet (412) are located the rear side of first collection cigarette chamber (41) right-hand member portion, second air outlet (422) are located the rear side of second collection cigarette chamber (42) left end portion, casing (43) are being close to the rear side and are being located the position between first collection cigarette chamber (41) and second collection cigarette chamber (42) and be formed with breach (431), first air outlet (412) are located the left side of breach (431), second air outlet (422) are located the right side of breach (431), flow distribution portion (52) embedding is in breach (431).

8. The range hood of claim 7, wherein: the flow distribution part (52) is arranged in the middle of the bottom of the box body (1), and the left side and the right side of the bottom of the box body (1) are respectively used for accommodating the rear sides of the first smoke collection cavity (41) and the second smoke collection cavity (42).