CN217233827U

CN217233827U - Fan assembly of integrated stove

Info

Publication number: CN217233827U
Application number: CN202123375771.3U
Authority: CN
Inventors: 刘小军
Original assignee: Suzhou Fuleka Electrical Science And Technology Development Co ltd
Current assignee: Suzhou Fuleka Electrical Science And Technology Development Co ltd
Priority date: 2021-12-30
Filing date: 2021-12-30
Publication date: 2022-08-19
Anticipated expiration: 2031-12-30

Abstract

The utility model relates to an integrated kitchen fan subassembly, it includes: the volute casing comprises a volute casing front cover, a volute casing rear cover and a volute casing enclosing plate connected between the volute casing front cover outer edge and the volute casing rear cover outer edge, wherein an air outlet channel is defined between the volute casing front cover and the volute casing enclosing plate, an impeller and a motor used for driving the impeller are arranged in the air channel, an air inlet is formed in the volute casing front cover, an air outlet is formed in the volute casing enclosing plate, the impeller is provided with a plurality of blades which are annularly distributed around the air inlet, the blades extend between the volute casing front cover and the volute casing rear cover, the volute casing front cover is arranged at intervals of planes and inclined planes, and the distance between the volute casing front cover and the volute casing rear cover is in a decreasing trend in a set direction. The design of the volute front cover enables the frequency of airflow noise to be staggered, and the superposition of sound with the same frequency is avoided, so that the noise is reduced.

Description

Integrated kitchen fan subassembly

Technical Field

The utility model relates to an integrated kitchen fan subassembly for integrated kitchen is the power source of integrated kitchen oil pumping cigarette.

Background

The centrifugal fan is a main power source for realizing oil smoke trapping of the integrated stove and also a main source for generating noise, and a fan system with poor performance often causes insufficient oil smoke absorption power and cannot completely trap oil smoke; simultaneously, also can bring a large amount of noises, seriously influence user's use and experience, influence user's health, therefore the optimization of fan is the main research object that integrated kitchen performance promoted noise reduces always.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing an integrated kitchen fan subassembly has solved the problem of noise reduction.

In order to achieve the above purpose, the utility model adopts the technical scheme that:

the utility model provides an integrated kitchen fan subassembly, it includes: the volute casing comprises a volute casing front cover, a volute casing rear cover and a volute casing enclosing plate connected between the volute casing front cover outer edge and the volute casing rear cover outer edge, wherein an air outlet channel is defined between the volute casing front cover and the volute casing enclosing plate, an impeller and a motor used for driving the impeller are arranged in the air channel, an air inlet is formed in the volute casing front cover, an air outlet is formed in the volute casing enclosing plate, the impeller is provided with a plurality of blades which are annularly distributed around the air inlet, the blades extend between the volute casing front cover and the volute casing rear cover, the volute casing front cover is arranged at intervals of planes and inclined planes, and the distance between the volute casing front cover and the volute casing rear cover is in a decreasing trend in a set direction.

Preferably, the plane and the extension direction of the inclined plane are parallel.

Preferably, the volute casing front cover is provided with an oil leakage hole at a position where a distance between the volute casing front cover and the volute casing rear cover is minimum.

Preferably, the integrated kitchen range further comprises a transfer pipe, the inlet end of the transfer pipe is in a shape matched with the air outlet, the outlet end of the transfer pipe is in an oval shape, and the outlet end of the transfer pipe is used for being arranged on the side wall of the integrated kitchen range.

Because of the application of the technical scheme, compared with the prior art, the utility model has the advantages of it is following:

the utility model discloses an integrated kitchen fan subassembly, owing to set up and make the spiral case protecgulum set up with the inclined plane interval plane, and the distance between spiral case protecgulum and the spiral case hou gai reduces in setting for the direction to make the air current noise frequency stagger, avoid the stack of same frequency sound, thereby reduced the noise.

Drawings

Some specific embodiments of the invention will be described in detail hereinafter by way of example and not by way of limitation with reference to the accompanying drawings. The same reference numbers in the drawings identify the same or similar elements or components. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the drawings:

FIG. 1 is a perspective view of a preferred embodiment of the present invention;

FIG. 2 is a top view of FIG. 1 (with the adapter tube removed);

FIG. 3 is a schematic cross-sectional view taken along section line A-A in FIG. 2;

FIG. 4 is an enlarged view at B in FIG. 3;

FIG. 5 is an enlarged view at A in FIG. 3;

FIG. 6 is a schematic illustration of intake air;

wherein the reference numerals are as follows:

1. a volute front cover; 11. an air inlet; 12. a plane; 13. a bevel; 14. an oil leak hole;

2. a volute rear cover; 21. an oil collection port;

3. a volute casing coaming; 31. an air outlet;

4. an impeller; 41. a blade;

5. a motor;

6. and (4) a transfer pipe.

Detailed Description

The technical solution of the present invention will be described clearly and completely with reference to the accompanying drawings, and obviously, the described embodiments are some, but not all embodiments of the present invention. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", and the like indicate orientations or positional relationships based on orientations or positional relationships shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

Furthermore, the technical features mentioned in the different embodiments of the invention described below can be combined with each other as long as they do not conflict with each other.

The integrated kitchen ventilator assembly as shown in fig. 1 comprises a volute front cover 1, a volute rear cover 2 and a volute shroud plate 3, and an impeller 4 and a motor 5 which are arranged inside. The actual use scene is that the front cover 1 of the volute faces upwards, and the rear cover 2 of the volute faces downwards. The volute front cover 1 and the volute rear cover 2 are at a certain distance, and the volute coaming 3 is connected between the outer edge of the volute front cover 1 and the outer edge of the volute rear cover 2. An air duct is formed among the volute front cover 1, the volute rear cover 2 and the volute enclosing plate 3. An impeller 4 and a motor 5 are arranged in the air duct, and the motor 5 is used for driving the impeller 4 to rotate. An air inlet 11 is arranged on the front cover 1 of the volute, and an air outlet 31 is arranged on the enclosing plate 3 of the volute. The impeller 4 has a plurality of blades 41 annularly distributed around the air inlet 11, and the blades 41 extend between the front cover 1 and the rear cover 2 of the volute so as to blow the air flow of the air inlet 11 to the air outlet 31.

The air outlet 31 is connected with a switching tube 6. The inlet end of the adapter tube 6 is connected with the air outlet 31 and is rectangular matched with the air outlet 31. The exit end of the adapter tube 6 is oval and is arranged on the side wall of the integrated stove, and the oval shape enables the air outlet to have larger circulation. The square air outlet 31 is switched into an oval shape by the switching tube 6, so that smoke discharge arrangement is facilitated.

Referring to fig. 1 and 3, the volute front cover 1 is provided with a plane 12 and a slope 13 which are spaced apart. And the flat surface 12 is parallel to the extending direction of the inclined surface 13. As shown in fig. 3, the distance between the volute front cover 1 and the volute rear cover 2 decreases in the direction from bottom to top. This reduced tendency allows room for the incoming air flow, which folds down into the volute as it enters horizontally above the volute due to the action of the upper cover plate (not shown), as shown in the schematic inlet view of figure 6. Meanwhile, the shape of the volute front cover 1 can also play a role in noise reduction. Because the plane 12 and the inclined plane 13 of the volute front cover 1 are arranged in a staggered manner, the axial clearance between the impeller 4 and the volute is not uniformly distributed, the frequency of airflow noise is staggered, the superposition of sound with the same frequency is avoided, and the noise is reduced. In this example, in order to reduce noise, it is also arranged that, as shown in fig. 4, the clearance n between the impeller 4 near the outlet side and the volute front cover 1 is sufficiently small to reduce the backflow of the air flow, thereby reducing flow loss and noise. As shown in fig. 5, the impeller 4 far from the outlet side has a larger clearance m with the volute front cover 1, so that the generation of squeaking sound due to too high flow speed is avoided. Therefore, the device has a good effect on noise control.

As shown in fig. 1 and 2, the front volute cover 1 is further provided with an oil leakage hole 14, and the oil leakage hole 14 is located on a plane where the distance between the front volute cover 1 and the rear volute cover 2 is the smallest. Thus, when the integrated kitchen fan assembly is horizontally arranged (refer to fig. 6), oil smoke in the intake flow flows into the oil leakage hole 14 along the inclined direction of the front cover 1 of the volute, the oil leakage hole 14 is connected with the inner space of the volute, and after the oil leakage enters the volute, the oil leakage is collected along the oil collection port 21 formed in the rear cover 2 of the volute.

In summary, in this embodiment, the front volute cover 1 is disposed with the plane 12 and the inclined plane 13 spaced apart, and the distance between the front volute cover 1 and the rear volute cover 2 decreases in the set direction, so as to achieve lateral air intake, and stagger the frequency of airflow noise, thereby avoiding overlapping of sounds with the same frequency, and reducing noise.

The above embodiments are only for illustrating the technical concept and features of the present invention, and the purpose thereof is to enable those skilled in the art to understand the contents of the present invention and to implement the present invention, so as not to limit the protection scope of the present invention, and all equivalent changes or modifications made according to the spirit of the present invention should be covered by the protection scope of the present invention.

Claims

1. An integrated stove fan assembly, comprising: spiral case protecgulum (1), spiral case back cover (2) and connect spiral case bounding wall (3) between spiral case protecgulum (1) outer fringe with cover (2) outer fringe behind the spiral case, spiral case protecgulum (1) lid (2) behind the spiral case with inject the tuber pipe between spiral case bounding wall (3), be provided with impeller (4) in the wind pipe and be used for the drive impeller (4) pivoted motor (5), income wind gap (11) have been seted up on spiral case protecgulum (1), be provided with air outlet (31) on spiral case bounding wall (3), impeller (4) have around go into a plurality of blades (41) of wind gap (11) annular distribution, blade (41) extend in spiral case protecgulum (1) with between spiral case back cover (2), its characterized in that: the volute front cover (1) is arranged with a plane (12) and a slope (13) at intervals, and the distance between the volute front cover (1) and the volute rear cover (2) is reduced in a set direction.

2. The integrated cooker fan assembly of claim 1, wherein: the plane (12) is parallel to the extending direction of the inclined plane (13).

3. The integrated cooker fan assembly of claim 1, wherein: an oil leakage hole (14) is formed in the position, with the minimum distance, of the volute front cover (1) and the volute rear cover (2) on the volute front cover (1).

4. The integrated cooker fan assembly of claim 1, wherein: it still includes adapter tube (6), the entry end of adapter tube (6) be with the shape that air outlet (31) match, the exit end of adapter tube (6) is oval, the exit end of adapter tube (6) is used for setting up the lateral wall of integrated kitchen.