CN219589013U

CN219589013U - Silent noise reduction type range hood fan housing

Info

Publication number: CN219589013U
Application number: CN202320052308.5U
Authority: CN
Inventors: 黄源远; 李�泳
Original assignee: Guangdong Leeper Electric Co ltd
Current assignee: Guangdong Leeper Electric Co ltd
Priority date: 2023-01-09
Filing date: 2023-01-09
Publication date: 2023-08-25
Anticipated expiration: 2033-01-09

Abstract

A silence noise reduction formula lampblack absorber fan housing, its characterized in that: the wind wheel is arranged in the air suction cavity through the motor; the noise reduction plate is provided with a plurality of mute holes penetrating through the body, and a mute device is coated outside the noise reduction plate corresponding to the mute holes. The beneficial effects of the utility model are as follows: 1. simple structure, low manufacturing cost and market competitiveness improvement. 2. On the premise of ensuring the normal smoking and filtering effects of the range hood, the noise generated by the range hood is greatly reduced, a comfortable kitchen environment is brought to a user, and the physical and mental health of the user is protected.

Description

Silent noise reduction type range hood fan housing

Technical Field

The utility model relates to a range hood accessory, in particular to a silent noise reduction type range hood fan shell.

Background

The range hood is also called as a range hood, and is a kitchen appliance for purifying kitchen environment, and can rapidly exhaust waste gas generated by combustion of a gas stove and oil smoke generated in a cooking process and discharge the waste gas and the oil smoke outdoors so as to achieve the purpose of purifying the kitchen environment.

Generally, the range hood generates noise in the working process, and the main reasons for the noise generation are motor operation, rotation of driving impellers, impact on the inner wall of a volute caused by cutting of air flow in the rotation process of the driving impellers, and the like, and the decibel of the noise is often improved along with the enhancement of the smoking filtering effect. The traditional noise reduction method is generally to directly set low air quantity, namely, the smoke suction filtering effect of the range hood is sacrificed to realize low noise, so that the negative influence of low efficiency is brought to the range hood, and the aim of reducing the noise is realized on the premise of ensuring the smoke suction filtering effect.

Disclosure of Invention

The utility model aims to overcome the defects of the prior art and provides a silencing noise reduction type range hood fan housing which is simple in structure, low in manufacturing cost and capable of silencing noise reduction.

The utility model aims at realizing the following modes: a silence noise reduction formula lampblack absorber fan housing, its characterized in that: the wind wheel is arranged in the air suction cavity through the motor; the noise reduction plate is provided with a plurality of mute holes penetrating through the body, and a mute device is coated outside the noise reduction plate corresponding to the mute holes.

The silencing device is made of soundproof cotton.

The soundproof cotton be rectangular form, whole cladding is outside the board of making an uproar falls.

The aperture of the mute holes is 2.5-4 mm, and the mute holes are distributed in a shape of a Chinese character 'pin'.

The mute device is sleeved with a plurality of connecting seats, fixing screws penetrate through the connecting seats and are connected with mounting holes formed in the end faces of the noise reduction plates, and the mute device is clamped between the connecting seats and the noise reduction plates.

The beneficial effects of the utility model are as follows: 1. simple structure, low manufacturing cost and market competitiveness improvement. 2. On the premise of ensuring the normal smoking and filtering effects of the range hood, the noise generated by the range hood is greatly reduced, a comfortable kitchen environment is brought to a user, and the physical and mental health of the user is protected.

Drawings

Fig. 1 is a diagram showing the effect of the assembly of the present utility model.

Fig. 2 is a structural assembly view of a front shell plate, a noise reduction plate and a rear shell plate in the present utility model.

Fig. 3 is a schematic structural diagram of a noise reduction plate and a silencing device in the utility model.

Fig. 4 is a structural assembly view of the noise reduction plate and the silencing device according to the present utility model.

Detailed Description

The utility model is described in more detail below with reference to the accompanying drawings. A silence noise reduction formula lampblack absorber fan housing, its characterized in that: the wind turbine comprises a noise reduction plate 5, wherein the front end and the rear end of the noise reduction plate 5 are respectively covered with a front shell plate 1 and a rear shell plate 2, the front shell plate 1, the rear shell plate 2 and the noise reduction plate 5 are surrounded to form a suction cavity, a motor 4 is arranged on the rear shell plate 2, and a wind wheel 3 is arranged in the suction cavity through the motor 4; the noise reduction plate 5 is provided with a plurality of mute holes 51 penetrating through the body, and the outside of the noise reduction plate 5 is coated with a mute device corresponding to the mute holes 51.

The silencing device is a soundproof cotton 6.

The soundproof cotton 6 is long-strip-shaped and is wholly coated outside the noise reduction plate 5.

The aperture of the mute holes 51 is 2.5-4 mm, and the mute holes 51 are distributed in a 'delta' shape.

The mute device is sleeved with a plurality of connecting seats 7, fixing screws penetrate through the connecting seats 7 and are connected with mounting holes 52 formed in the end face of the noise reduction plate 5, and the mute device is clamped between the connecting seats 7 and the noise reduction plate 5.

Working principle: in the fan housing of lampblack absorber, the front shell plate and back shell plate between opposite face, the centre gripping is installed and is fallen the board of making an uproar, and front shell plate, back shell plate cover respectively on the preceding terminal surface of this board of making an uproar falls, and front shell plate, back shell plate and fall the board and enclose into the chamber of induced drafting, and the motor of lampblack absorber is installed on this back shell plate, and the wind wheel has then passed through the motor and is installed in this chamber of induced drafting.

In order to realize the purpose of making an uproar falls in silence to lampblack absorber, run through its body on the board of making an uproar falls and offered a plurality of silence hole, the outside of the board of making an uproar falls simultaneously, the cladding is installed silence device on the position that silence hole corresponds, when wind wheel and motor work, the working sound that its produced, and the striking that wind wheel cutting air produced the shell plate inner wall, can both pass this silence hole and arrive on the silence device. The mute device can be set as mute cotton, the mute cotton has a multi-fiber structure, and when sound waves pass through reflection, mutual superposition and collision of countless fibers of the mute cotton, the sound wave intensity is gradually weakened, and part of sound waves even disappear, so that the purpose of mute noise reduction is achieved. The silencing device is not limited to the silencing cotton, but can be any other material with a sound insulation function, such as a rubber mat, an asbestos layer, a foam layer and the like.

Further, the aperture of the mute holes can be set to be between 2.5 and 4 millimeters, and the mute holes are distributed in a staggered manner in a delta shape. Meanwhile, the appearance of the mute cotton is consistent with that of the noise reduction plate, and the mute cotton is externally attached to the noise reduction plate through the connecting seat, so that gas turbulence caused by dislocation, bent angles and the like is avoided, and the noise reduction function is further enhanced.

The traditional method for directly reducing noise by setting low air volume is abandoned, the noise reduction plate and the silencing device are matched with each other to perform the silencing noise reduction, the structure is simple, the manufacturing cost is low, the noise generated by the range hood is greatly reduced on the premise that the normal smoking filtering effect of the range hood is ensured, a comfortable kitchen environment is brought to a user, and the physical and mental health of the user is protected, so that the range hood can be widely popularized.

The foregoing has shown and described the basic principles and main features of the present utility model and the advantages of the present utility model. It will be understood by those skilled in the art that the present utility model is not limited to the embodiments described above, and that the above embodiments and descriptions are merely illustrative of the principles of the present utility model, and various changes and modifications may be made without departing from the spirit and scope of the utility model, which is defined in the appended claims.

Claims

1. A silence noise reduction formula lampblack absorber fan housing, its characterized in that: the wind turbine comprises a noise reduction plate (5), wherein the front end and the rear end of the noise reduction plate (5) are respectively covered with a front shell plate (1) and a rear shell plate (2), the front shell plate (1), the rear shell plate (2) and the noise reduction plate (5) are surrounded to form an air suction cavity, a motor (4) is arranged on the rear shell plate (2), and a wind wheel (3) is arranged in the air suction cavity through the motor (4); a plurality of mute holes (51) are formed in the noise reduction plate (5) in a penetrating mode, and mute devices are wrapped outside the noise reduction plate (5) and correspond to the mute holes (51).

2. The sound reduction type range hood fan housing according to claim 1, wherein: the silencing device is a soundproof cotton (6).

3. The smoke exhaust ventilator housing of claim 2, wherein: the soundproof cotton (6) is in a strip shape, and is wholly coated outside the noise reduction plate (5).

4. The sound reduction type range hood fan housing according to claim 1, wherein: the aperture of the mute holes (51) is 2.5-4 mm, and the mute holes (51) are distributed in a shape of a Chinese character 'pin'.

5. The sound reduction type range hood fan housing according to claim 1, wherein: the mute device is sleeved with a plurality of connecting seats (7), fixing screws penetrate through the connecting seats (7) and are connected with mounting holes (52) formed in the end faces of the noise reduction plates (5), and the mute device is clamped between the connecting seats (7) and the noise reduction plates (5).