CN211623834U - Auxiliary noise reduction device of fan and range hood - Google Patents

Abstract

The utility model discloses a device and range hood of making an uproar falls in assistance of fan, wherein, the device of making an uproar falls in assistance of fan is evenly set up including installing connecting piece, the interval in the motor shaft of fan two at least blades, the setting that radially stretch out on the connecting piece is global are at least one a plurality of trompils, the setting on the windward side of blade are in the blade with the cavity of a plurality of trompils intercommunication. Compared with the prior art, the utility model provides a device of making an uproar falls in assistance of fan can install in the motor shaft of range hood inner impeller department, can change the air current and get into range hood's mobile state, effectively reduces the noise of range hood in service, gives people and has created a comfortable quiet living environment relatively, very big improvement people's quality of life. Also has the characteristics of simple structure, low cost and convenient use.

Description

Auxiliary noise reduction device of fan and range hood

Technical Field

The utility model relates to a range hood technical field, more specifically say, relate to a supplementary device and range hood of making an uproar that falls of fan.

Background

In the era of rapid development of economy, people have higher and higher requirements on living environment. Therefore, the range hood for removing the kitchen oil fume becomes one of necessary appliances for each household kitchen, well solves the problem that the oil fume in the kitchen is not easy to exhaust, but has great noise generated by the range hood in the cooking process and is troubled all the time.

In the prior art, the noise reduction mode of the range hood is various, but in numerous patents, the range hood has the defects of complex noise reduction structure design, high noise reduction cost and the like. Therefore, an auxiliary noise reduction device of a fan with simple structure and low cost is needed to solve the problem of large noise generated when the range hood is used.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a device and range hood fall in assistance of fan to solve the great problem of noise that the range hood that exists among the prior art produced when using.

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

the utility model provides a supplementary device of making an uproar that falls of fan, evenly sets up including installing connecting piece, the interval in the motor shaft of fan two at least blades that radially stretch out on the connecting piece is global, set up at least one a plurality of trompils on the wind-receiving surface of blade, set up in the blade with the cavity of a plurality of trompils intercommunication.

The cavity is filled with silencing cotton.

The opening may or may not extend through the blade.

The blade be equipped with four, four blades with connecting piece integrated into one piece connect into the cross structure.

The connecting piece is cylindrical, and the end face of the connecting piece is provided with a shaft center hole which is used for being sleeved on the motor rotating shaft.

The connecting piece is fixedly connected with the motor rotating shaft or in clearance fit with the motor rotating shaft through the shaft center hole.

The blades are flat plates, and one surface of each flat plate, which is perpendicular to the axial lead of the connecting piece, is the wind receiving surface.

An opening communicated with the cavity is formed in one side face of the blade, and a cover plate which covers one end face of the connecting piece is fixedly connected to the opening.

The blade and the cover plate are provided with mutually matched buckles or clamping grooves, and the blade and the cover plate are connected through the buckles and the clamping grooves in a clamping mode.

Additionally, the utility model also provides a range hood, include the impeller, install motor, the setting of impeller department are in motor shaft on the motor, install the supplementary device of making an uproar of falling of foretell fan in the pivot.

The utility model has the advantages that:

compared with the prior art, the utility model provides a device of making an uproar falls in assistance of fan can install in the motor shaft of range hood inner impeller department, can change the air current and get into range hood's mobile state, effectively reduces the noise of range hood in service, gives people and has created a comfortable quiet living environment relatively, very big improvement people's quality of life. Also has the characteristics of simple structure, low cost and convenient use.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic perspective view of the auxiliary noise reduction device of the fan of the present invention.

Fig. 2 is an explosion diagram of the auxiliary noise reduction device of the fan according to the present invention.

Fig. 3 is an explosion diagram of the range hood of the present invention.

Detailed Description

In order to make the technical problem, technical solution and advantageous effects to be solved by the present invention more clearly understood, the following description is given in conjunction with the accompanying drawings and embodiments to illustrate the present invention in further detail. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

In the description of the present invention, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those 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, and therefore, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

It should be noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

As shown in fig. 1-3, in order to solve the problem that the noise generated when the range hood that exists among the prior art uses is great, the utility model provides a device of making an uproar falls in assistance of fan, including installing connecting piece 1 in the motor shaft of fan, the interval evenly sets up on connecting piece 1 global and radial two at least blades 2 that stretch out, set up a plurality of trompils 21 on at least one blade 2's the wind-receiving face, set up in blade 2 with the cavity 22 of a plurality of trompils 21 intercommunication.

The auxiliary noise reduction device of the fan can be installed in a volute of the range hood and is positioned on a motor rotating shaft at the impeller, flowing wind can enter and exit the cavity 22 through the opening 21, the flowing state of the airflow entering the range hood can be changed, the noise in the operation of the range hood is effectively reduced, a relatively comfortable and quiet living environment is created for people, and the life quality of the people is greatly improved. The auxiliary noise reduction device of the fan has the characteristics of simple structure, low cost and convenience in use.

As shown in fig. 1-2, the cavity 22 is preferably filled with a sound absorbing material (not shown). The auxiliary noise reduction device of the fan adopts the structure that the opening 21 is formed in the blade 2, and the sound absorption material is filled in the cavity 22, so that the noise of the range hood can be more effectively reduced, and the noise of the range hood is lower.

Preferably, the sound absorbing material is sound deadening cotton.

Preferably, the opening 21 penetrates or does not penetrate the blade 2, and the penetration facilitates the flow of wind in the cavity 22 and the entrance and exit.

As shown in fig. 1-2, in an embodiment of the present invention, four blades 2 are provided, four blades 2 are uniformly arranged along the circumferential interval of the connecting member 1, and the four blades 2 are integrally connected with the connecting member 1 to form a cross-shaped structure (the cross section is cross-shaped).

In one embodiment, at least one of the four blades 2 has an opening 21 on the wind-receiving surface. In the case shown in fig. 1 and 2, the four vanes 2 are provided with the openings 21, and in actual use, the openings 21 may be provided in one, two, three, or four vanes 2 as required.

Preferably, the connecting piece 1 is cylindrical, and an axial hole 11 for sleeving the motor rotating shaft is arranged on the end surface of the connecting piece. The axial hole 11 is a through hole.

Preferably, the connecting member 1 is fixedly connected or clearance-fitted with the motor rotating shaft 61 through the shaft center hole 11. When fixedly connected, the connecting piece 1 and the motor rotating shaft 61 rotate synchronously; when the gap is matched, the connecting piece 1 and the motor rotating shaft 61 rotate asynchronously.

Preferably, the blade 2 is a flat plate, and one surface of the flat plate, which is perpendicular to the axis of the connecting piece 1, is a wind receiving surface.

Specifically, an opening communicated with the cavity 22 is arranged on one side surface of the blade 2, and a cover plate 3 which covers one end surface of the connecting piece 1 is fixedly connected to the opening.

Preferably, the blade 2 and the cover plate 3 are provided with mutually matched buckles or clamping grooves, and the blade 2 and the cover plate 3 are connected through the buckles and the clamping grooves in a clamping mode.

For example, as shown in fig. 2, the cover plate 3 is provided with a buckle 33, the blade 2 is provided with a clamping groove 23, and the two are used in cooperation with each other; or, be equipped with the draw-in groove on the apron 3, be equipped with the buckle rather than the cooperation use on the blade 2, specific case can select as required.

Specifically, a connecting piece 31 extending to one side is arranged at one end, far away from the connecting piece 1, of the cover plate 3, a fixing hole 32 is arranged on the connecting piece 31, a screw hole 24 is arranged at a position, corresponding to the fixing hole 32, of the blade 2, and the connecting piece 31 penetrates through the fixing hole 32 and the screw hole 24 through a screw 4 to be fixedly connected with the blade 2.

Specifically, a through hole 34 matched with the shaft center hole 11 on the connecting piece 1 is arranged in the middle of the cover plate 3 corresponding to the shaft center hole 11 of the connecting piece 1.

Preferably, the through hole 34 coincides with the diameter of the spindle hole 11.

As shown in fig. 3, in addition, the utility model also provides a range hood, including impeller 7, install motor 6, the motor shaft 61 of setting on motor 6 in impeller 7 department, install the supplementary device of making an uproar that falls of foretell fan on the motor shaft 61. In addition, the range hood further comprises a volute 5, the motor 6 and the impeller 7 are both installed in the volute 5, the auxiliary noise reduction device of the fan is sleeved on the motor rotating shaft 61 through the shaft center hole 11 on the connecting piece 1 and the through hole 34 on the cover plate 3, the left end and the right end of the auxiliary noise reduction device of the fan are respectively provided with a gasket 8 sleeved on the motor rotating shaft 61, the outer end (right end) of the auxiliary noise reduction device of the fan, which is positioned on the outer side of the gasket 8, is provided with a knob 9 sleeved on the motor rotating shaft 61, the knob 9 is fixedly connected with the motor rotating shaft 61, and threaded connection or tight fit. The auxiliary noise reduction device of the fan and the motor rotating shaft 61 can be fixedly connected in a close fit mode and can also be movably connected in a clearance fit mode. When the auxiliary noise reduction device of the fan is fixedly connected with the motor rotating shaft 61, the motor rotating shaft 61 drives the auxiliary noise reduction device of the fan to rotate; when the auxiliary noise reduction device of the fan is movably connected with the motor rotating shaft 61, the auxiliary noise reduction device of the fan is driven to rotate by the air inlet of the motor 6.

Preferably, the motor rotating shaft 61 of the motor 6 and the impeller 7 are coaxial.

Preferably, the auxiliary noise reducing means of the fan are located inside the impeller 7.

When the auxiliary noise reduction device of the fan rotates along with the motor, the blade 2 rotates along with the motor, the flowing state of airflow entering the range hood can be changed, the noise of the range hood in operation is effectively reduced, a relatively comfortable and quiet living environment is created for people, and the life quality of people is greatly improved. The auxiliary noise reduction device of the fan has the characteristics of simple structure, low cost and convenience in use.

The above embodiments and drawings are only for illustrating the technical solutions of the present invention and do not constitute limitations of the present invention. It should be noted that, a person skilled in the art may modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for part or all of the technical features, and such modifications or substitutions are included in the scope of the present invention as claimed in the claims.

Claims (10)

1. The utility model provides a device of making an uproar falls in assistance of fan which characterized in that: the fan comprises a connecting piece arranged on a motor rotating shaft of a fan, at least two blades which are uniformly arranged on the circumferential surface of the connecting piece at intervals and radially extend out, a plurality of openings arranged on the wind-receiving surface of at least one blade, and a cavity arranged in the blade and communicated with the plurality of openings.

2. The auxiliary noise reduction device of a wind turbine as claimed in claim 1, wherein: the cavity is filled with silencing cotton.

3. The auxiliary noise reduction device of a wind turbine as claimed in claim 1, wherein: the opening may or may not extend through the blade.

4. The auxiliary noise reduction device of a wind turbine as claimed in claim 1, wherein: the blade be equipped with four, four blades with connecting piece integrated into one piece connect into the cross structure.

5. The auxiliary noise reduction device of a wind turbine as claimed in claim 1, wherein: the connecting piece is cylindrical, and the end face of the connecting piece is provided with a shaft center hole which is used for being sleeved on the motor rotating shaft.

6. The auxiliary noise reduction device of a wind turbine as claimed in claim 5, wherein: the connecting piece is fixedly connected with the motor rotating shaft or in clearance fit with the motor rotating shaft through the shaft center hole.

7. The auxiliary noise reduction device of a wind turbine as claimed in claim 1, wherein: the blades are flat plates, and one surface of each flat plate, which is perpendicular to the axial lead of the connecting piece, is the wind receiving surface.

8. The auxiliary noise reduction device for a wind turbine as claimed in claim 7, wherein: an opening communicated with the cavity is formed in one side face of the blade, and a cover plate which covers one end face of the connecting piece is fixedly connected to the opening.

9. The auxiliary noise reduction device for a wind turbine as claimed in claim 8, wherein: the blade and the cover plate are provided with mutually matched buckles or clamping grooves, and the blade and the cover plate are connected through the buckles and the clamping grooves in a clamping mode.

10. The utility model provides a range hood, includes the impeller, installs motor, setting that the impeller department is in motor shaft on the motor, its characterized in that: an auxiliary noise reduction device of the fan as claimed in any one of claims 1 to 9 is mounted on the motor rotating shaft.

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