CN214501359U

CN214501359U - Fume exhaust fan

Info

Publication number: CN214501359U
Application number: CN202022637746.7U
Authority: CN
Inventors: 孙斌; 马志豪; 翁建松
Original assignee: Ningbo Fotile Kitchen Ware Co Ltd
Current assignee: Ningbo Fotile Kitchen Ware Co Ltd
Priority date: 2020-11-13
Filing date: 2020-11-13
Publication date: 2021-10-26
Anticipated expiration: 2030-11-13

Abstract

The utility model discloses a range hood, including casing and the fan frame of setting in the casing top, the smoking mouth has been seted up to the bottom of casing, the inboard of casing is provided with the culinary art device that is used for culinary art food, the inboard of fan frame is provided with fan system, its characterized in that: the fan system includes first fan subassembly and second fan subassembly, first fan subassembly and second fan subassembly set up side by side along the left and right sides direction of fan frame, first fan subassembly includes the first air intake of seting up towards left side direction at least, second fan subassembly includes the second air intake of seting up towards right side direction at least, in the casing, the left and right sides of cooking device is formed with first inlet air channel and second inlet air channel respectively, smoking mouth, first inlet air channel and first air intake fluid intercommunication, smoking mouth, second inlet air channel and second air intake fluid intercommunication.

Description

Fume exhaust fan

Technical Field

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

Background

In order to achieve effective utilization of kitchen space, range hoods have emerged that integrate cooking functions.

Chinese utility model patent of application number 201910008438.7 discloses an integrated form range hood, including range hood main part and the oven main part of setting in the range hood main part, the range hood main part includes first box, sets up the air-out part of fan and fan in first box, the oven main part includes the second box, the air outlet has been seted up on one side of second box, the air outlet directly communicates second box and first box in, integrated form range hood still includes the inner loop subassembly, the inner loop subassembly includes the circulation pipeline with air-out part and second box selectivity one-way conduction.

The integrated range hood is a single-fan system, the air inlet mode of the single-fan system is mainly rear air inlet, and the range hood has limited range hood oil absorption effect on the integrated range hood with the steam oven and the oven. The existing single fan system mainly depends on improving the rotating speed of a motor and increasing the sizes of a volute and an impeller as main design directions, the rotating speed of the motor can be effectively improved, but the rotating speed of the motor is limited, and firstly, the rotating speed of the motor needs to be improved to a high rotating speed when a certain degree of air volume needs to be improved; secondly, the structure vibration is increased.

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, when can effectively promote the amount of wind, can not increase structural vibration.

The utility model provides a technical scheme that above-mentioned technical problem adopted does: the utility model provides a range hood, includes casing and the fan frame of setting in the casing top, the mouth of smoking has been seted up to the bottom of casing, the inboard of casing is provided with the culinary art device that is used for culinary art food, the inboard of fan frame is provided with fan system, its characterized in that: the fan system includes first fan subassembly and second fan subassembly, first fan subassembly and second fan subassembly set up side by side along the left and right sides direction of fan frame, first fan subassembly includes the first air intake of seting up towards left side direction at least, second fan subassembly includes the second air intake of seting up towards right side direction at least, in the casing, the left and right sides of cooking device is formed with first inlet air channel and second inlet air channel respectively, smoking mouth, first inlet air channel and first air intake fluid intercommunication, smoking mouth, second inlet air channel and second air intake fluid intercommunication.

In order to improve the air quantity, the first fan assembly and the second fan assembly are coaxially and centrosymmetrically arranged.

In order to counteract the sine excitation vibration of the motor, the first fan assembly comprises a first volute, a first impeller positioned on the inner side of the first volute, a first motor driving the first impeller to rotate and a first bracket used for fixing the first motor, the second fan assembly comprises a second volute, a second impeller positioned in the second volute, a second motor driving the second impeller to rotate and a second bracket used for fixing the second motor, the fan system also includes a mounting plate disposed inside the fan frame between the first fan assembly and the second fan assembly, one end of the first bracket is connected with the first motor, the other end of the first bracket extends to the outer side of the first volute in the direction far away from the first air inlet and is connected with the mounting plate, one end of the second support is connected with the second motor, and the other end of the second support extends to the outside of the second volute in the direction away from the second air inlet and is connected with the mounting plate.

In order to assemble the air flow passing through the first air outlet and the second air outlet, the first fan assembly comprises the first air outlet, the second fan assembly comprises the second air outlet, and the range hood further comprises a converging device used for assembling the air flow passing through the first air outlet and the second air outlet.

In order to assemble the airflow flowing through the first air outlet and the second air outlet, the first fan assembly comprises a first air outlet, the second fan assembly comprises a second air outlet, the converging device comprises a first flow guide part, a second flow guide part and an assembling part, one end of the first flow guide part is connected with the first air outlet, the other end of the first flow guide part is connected with the assembling part, one end of the second flow guide part is connected with the second air outlet, the other end of the second flow guide part is connected with the assembling part, the inner side of the first air outlet and the inner side of the assembling part are communicated with fluid, and the inner side of the second air outlet, the inner side of the second flow guide part and the inner side of the assembling part are communicated with fluid.

Compared with the prior art, the utility model has the advantages of: the first fan assembly and the second fan assembly are arranged in parallel along the left and right directions of the fan frame, the first air inlet channel and the second air inlet channel are formed in the shell and on the left side and the right side of the cooking device respectively, the first air inlet channel is arranged corresponding to the first air inlet of the first fan assembly, and the second air inlet channel is arranged corresponding to the second air inlet of the second fan assembly, so that air can be simultaneously fed into the left side and the right side, the air inlet amount is kept consistent, and the oil smoke absorption effect is improved; first fan subassembly and second fan subassembly central symmetry set up, and first support is fixed on the mounting panel simultaneously with the second support to can offset motor sinusoidal excitation vibration, realize the damping and fall the noise.

Drawings

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

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

fig. 3 is a sectional view of the range hood according to the embodiment of the present invention;

fig. 4 is a schematic view of a fan system of a range hood according to an embodiment of the present invention;

fig. 5 is a schematic view (hiding a partial volute) of a first fan assembly of the range hood according to the embodiment of the present invention;

fig. 6 is a schematic view (hiding a partial volute) of a second fan assembly of the range hood according to the embodiment of the present invention;

fig. 7 is an exploded view of the range hood according to the embodiment of the present invention;

fig. 8 is a schematic view of a converging device of a range hood according to an embodiment of the present invention.

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," and the like are used in a generic and descriptive sense only and not for purposes of limitation, as the disclosed embodiments of the invention may be oriented in different directions and the directional terms are intended to be illustrative and should not be construed as limiting, such as "upper" and "lower" are not necessarily limited to directions opposite to or coincident 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 3, a range hood includes a housing 1 and a fan frame 2 disposed above the housing 1. A smoking port 11 is opened at the bottom of the casing 1, a cooking device 12 for cooking food is arranged at the inner side of the casing 1, and preferably, the cooking device 12 can be a steam box, an oven and the like. A cover 15 for opening or closing the cooking appliance 12 is provided at a front side of the case 1 at a position corresponding to the cooking appliance 12. The inner side of the fan frame 2 is provided with a fan system 3.

The fan system 3 comprises a first fan assembly 31 and a second fan assembly 32. The first fan assembly 31 and the second fan assembly 32 are coaxially arranged side by side in the left-right direction of the fan frame 2, and preferably are arranged in a reverse symmetry with a phase of 180 degrees (i.e., in a central symmetry).

The first fan assembly 31 at least includes a first air inlet 311 opened toward the left direction, and the second fan assembly 32 at least includes a second air inlet 321 opened toward the right direction. A first air inlet channel 13 and a second air inlet channel 14 are respectively formed in the housing 1 and at the left and right sides of the cooking device 12. The smoke suction port 11 includes a first smoke suction port 111 opened corresponding to the first air supply passage 13 and a second smoke suction port 112 opened corresponding to the second air supply passage 14. The first smoking port 111, the first air intake channel 13 and the first air intake 311 are in fluid communication. The second smoking opening 112, the second air intake channel 14 and the second air intake opening 321 are in fluid communication. Thereby can realize that the left and right sides simultaneously the air inlet and the intake keep unanimous, promote the oil absorption cigarette effect.

Referring to fig. 2 to 6, the first fan assembly 31 includes a first volute 312, a first impeller 313 located inside the first volute 312, a first motor 314 driving the first impeller 313 to rotate, and a first bracket 315 fixing the first motor 314. The second fan assembly 32 includes a second volute 322, a second impeller 323 positioned within the second volute 322, a second motor 324 for driving the second impeller 323 to rotate, and a second bracket 325 for fixing the second motor 324.

The fan system 3 further comprises a mounting plate 33 disposed inside the fan frame 2 between the first fan assembly 31 and the second fan assembly 32. One end of the first bracket 315 is connected to the first motor 314, and the other end extends to the outside of the first scroll 312 in a direction away from the first air inlet 311 and is connected to the mounting plate 33. One end of the second bracket 325 is connected to the second motor 324, and the other end extends to the outside of the second volute 322 in a direction away from the second air inlet 321 and is connected to the mounting plate 33.

Referring to fig. 2 to 4 and 7, the first fan assembly 31 and the second fan assembly 32 are arranged in a central symmetry manner, in the present invention, the central symmetry of the two fan assemblies means that, as shown in fig. 2 and 6, the first volute 312 of the first fan assembly 31 and the second volute 322 of the second fan assembly 32 are projected on a same front-back vertical plane, and the obtained molded lines (the molded line meaning is the same as the volute molded line in the prior art, and the volute annular wall molded line means) of the first volute 312 and the second volute 322 are concentric and are arranged in a central symmetry manner with respect to the same center, and the first impeller 313 and the second impeller 323 are arranged symmetrically, and the first motor 314 and the second motor 324 are arranged symmetrically. The first fan assembly 31 includes a first air outlet 316, the second fan assembly 32 includes a second air outlet 326, and the first air outlet 316 and the second air outlet 326 are both located at the top of the fan frame 2. One of the air outlets is close to the front part of the fan frame 2, and the other air outlet is close to the rear part of the fan frame 2. The first bracket 315 and the second bracket 325 are fixed to the mounting plate 33 at the same time, and assuming that the motor excitation of the first fan assembly 31 is a sine function Y1 ═ ASIN (X), the motor excitation of the second fan assembly 32 is Y2 ═ ASIN (X-180) ═ ASIN (X), so that Y1+ Y2 ═ 0, so that this arrangement can cancel the motor sine excitation vibration, thereby achieving vibration and noise reduction.

Referring to fig. 2, 7 and 8, the range hood further includes a converging device 4 for converging the airflows flowing through the first air outlet 316 and the second air outlet 326. The confluence device 4 includes a first guide part 41, a second guide part 42, and a convergence part 43.

One end of the first flow guiding portion 41 is connected to the first air outlet 316, and the other end is connected to the converging portion 43. One end of the second flow guiding portion 42 is connected to the second air outlet 326, and the other end is connected to the converging portion 43. The first outlet port 316 is in fluid communication with the inside of the first deflector 41 and the inside of the converging portion 43. The second air outlet 326, the inside of the second flow guide portion 42 and the inside of the converging portion 43 are in fluid communication.

The term "fluid communication" as used herein refers to a spatial relationship between two components or portions (hereinafter collectively referred to as a first portion and a second portion), i.e., a fluid (gas, liquid or a mixture of both) 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, 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 casing (1) and sets up fan frame (2) in casing (1) top, smoke suction opening (11) have been seted up to the bottom of casing (1), the inboard of casing (1) is provided with cooking device (12) that are used for culinary art food, the inboard of fan frame (2) is provided with fan system (3), its characterized in that: fan system (3) include first fan subassembly (31) and second fan subassembly (32), left right direction along fan frame (2) sets up side by side first fan subassembly (31) and second fan subassembly (32), first fan subassembly (31) are at least including first air intake (311) seted up towards left side direction, second fan subassembly (32) are at least including second air intake (321) seted up towards right side direction, casing (1) is interior, the left and right sides of culinary art device (12) is formed with first inlet air channel (13) and second inlet air channel (14) respectively, smoking mouth (11), first inlet air channel (13) and first air intake (311) fluid intercommunication, smoking mouth (11), second inlet air channel (14) and second air intake (321) fluid intercommunication.

2. The range hood of claim 1, wherein: the first fan assembly (31) and the second fan assembly (32) are coaxially and centrosymmetrically arranged.

3. The range hood of claim 2, wherein: the first fan assembly (31) comprises a first volute (312), a first impeller (313) located on the inner side of the first volute (312), a first motor (314) driving the first impeller (313) to rotate and a first bracket (315) used for fixing the first motor (314), the second fan assembly (32) comprises a second volute (322), a second impeller (323) located in the second volute (322), a second motor (324) driving the second impeller (323) to rotate and a second bracket (325) used for fixing the second motor (324), the fan system (3) further comprises a mounting plate (33) arranged on the inner side of the fan frame (2) and located between the first fan assembly (31) and the second fan assembly (32), one end of the first bracket (315) is connected with the first motor (314), and the other end of the first bracket (315) extends to the outer side of the first volute (312) in the direction away from the first air inlet (311) and is connected with the mounting plate (33), one end of the second bracket (325) is connected with the second motor (324), and the other end extends to the outside of the second volute (322) in the direction far away from the second air inlet (321) and is connected with the mounting plate (33).

4. The range hood according to any one of claims 1 to 3, wherein: the first fan assembly (31) comprises a first air outlet (316), the second fan assembly (32) comprises a second air outlet (326), and the range hood further comprises a converging device (4) for converging air flows flowing through the first air outlet (316) and the second air outlet (326).

5. The range hood of claim 4, wherein: the first fan assembly (31) comprises a first air outlet (316), the second fan assembly (32) comprises a second air outlet (326), the converging device (4) comprises a first flow guide portion (41), a second flow guide portion (42) and a converging portion (43), one end of the first flow guide portion (41) is connected with the first air outlet (316), the other end of the first flow guide portion is connected with the converging portion (43), one end of the second flow guide portion (42) is connected with the second air outlet (326), the other end of the second flow guide portion is connected with the converging portion (43), the first air outlet (316), the inner side of the first flow guide portion (41) and the inner side of the converging portion (43) are in fluid communication, and the second air outlet (326), the inner side of the second flow guide portion (42) and the inner side of the converging portion (43) are in fluid communication.