CN209621691U - A kind of noise reducing type exhaust fan - Google Patents

Abstract

The utility model discloses a kind of noise reducing type exhaust fans, including air hose, first noise reduction ring, second noise reduction ring, motor and embeded slot, air hose two sides inner wall is provided with the first noise reduction ring and the second noise reduction ring, second noise reduction ring is located inside the first noise reduction ring, the first noise reduction ring outer wall and inner wall are connected by connecting plate with air hose inner wall and the second noise reduction ring outer wall, first noise reduction ring and the second noise reduction ring outer wall are socketed with silencing cotton, first noise reduction ring and the second noise reduction ring are away from each other side outer wall and offer embeded slot, the silencing cotton opening is respectively positioned on inside embeded slot, rubber ring is plugged with inside the embeded slot, the air hose is internally provided with motor, motor side outer wall is rotatably equipped with shaft, shaft side outer wall is equipped with flabellum.The noise that the utility model generates when being operated by the first noise reduction ring of setting and the silencing cotton of the second noise reduction ring surface installation to motor and flabellum is eliminated, to reduce the purpose of noise pollution.

Description

A kind of noise reducing type exhaust fan

Technical field

The utility model relates to exhaust fan technical field, specially a kind of noise reducing type exhaust fan.

Background technique

Exhaust fan drives fan blade to rotate certain driving air-flow by motor, a kind of air conditioning electricity for exchanging indoor and outdoor air Device, also known as draft fan.The purpose of air draft seeks to remove indoor foul atmosphere, adjusts temperature, humidity and sensory effect.Air draft Fan is widely used in family and public place.

Traditional exhaust fan during operation, due to motor operating noise and flabellum and windage generate vibration Caused noise will affect actual use to generate noise pollution, reduce the actual use sense of people, and traditional Exhaust fan, which lacks, eliminates noise mechanism, and when operating inevitably will appear noise.

Utility model content

The purpose of this utility model is to provide a kind of noise reducing type exhaust fan, has the advantages of eliminating noise, solve fortune The problem of noise is had when turning.

To achieve the above object, the utility model provides the following technical solutions: a kind of noise reducing type exhaust fan, including air hose, First noise reduction ring, the second noise reduction ring, motor and embeded slot, air hose two sides inner wall are provided with the first symmetrical noise reduction ring With the second noise reduction ring, second noise reduction ring is located inside the first noise reduction ring, and the first noise reduction ring outer wall and inner wall pass through The connecting plate of rounded array distribution is connected with air hose inner wall and the second noise reduction ring outer wall, first noise reduction ring and the second drop Ring outer wall of making an uproar is socketed with silencing cotton, two first noise reduction rings and the second noise reduction ring be away from each other side outer wall offer it is embedding Slot is closed, the silencing cotton opening is respectively positioned on inside embeded slot, rubber ring is plugged with inside the embeded slot, inside the air hose It is provided with motor, motor side outer wall is rotatably equipped with shaft, and the shaft is equipped with flabellum away from motor side outer wall.

Preferably, the first noise reduction ring diameter is greater than the second noise reduction ring diameter, and the first noise reduction ring diameter is less than air hose Inner diameter.

Preferably, two first noise reduction rings and the second noise reduction ring are symmetrically distributed in motor two sides.

Preferably, the motor outer wall is connected by bracket with air hose inner wall.

Preferably, motor upper end side outer wall is equipped with the power supply line through air hose outer wall.

Compared with prior art, the beneficial effects of the utility model are as follows:

1, the utility model has reached the effect for reducing noise by the first noise reduction ring of setting, the second noise reduction ring and silencing cotton Fruit, when motor drives flabellum rotation, the noise that generates and flabellum and windage generate when motor itself operates vibration and The noise of appearance can reverberate inside air hose, and air is followed to flow, and sound wave travels to interior, generate to indoor people uncomfortable The silencing cotton of sense, the first noise reduction ring and the second noise reduction ring surface can absorb the noise shaken inside air hose, make noise wave Toward interflection inside silencing cotton, gradually weaken the energy of noise wave, to achieve the effect that noise reduction, when reducing motor operating and The noise that flabellum generates, improves the comfort level of actual use.

2, the utility model has achieved the effect that be easily installed silencing cotton, silencing cotton by setting embeded slot and rubber strip When being socketed on the first noise reduction ring on the second noise reduction ring, rubber ring protrusion side can be embedded in and be mounted on embeded slot by staff In, so that the opening of silencing cotton is entrenched in embeded slot, silencing cotton is fixed, staff is easily facilitated and pacifies Dress and replacement.

Detailed description of the invention

Fig. 1 is the main cross section structure diagram of the utility model；

Fig. 2 is first noise reduction ring and the second noise reduction ring side structure schematic view of the utility model；

Fig. 3 is the first noise reduction ring schematic cross-sectional view of the utility model.

In figure: 1, air hose；2, the first noise reduction ring；3, the second noise reduction ring；4, rubber ring；5, connecting plate；6, motor；7, it fans Leaf；8, silencing cotton；9, shaft；10, bracket；11, power supply line；12, embeded slot.

Specific embodiment

The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work Every other embodiment obtained, fall within the protection scope of the utility model.

In the description of the present invention, it should be noted that term " on ", "lower", "inner", "outside" " front end ", " after The orientation or positional relationship of the instructions such as end ", " both ends ", " one end ", " other end " is that orientation based on the figure or position are closed System, is merely for convenience of describing the present invention and simplifying the description, rather than the device or element of indication or suggestion meaning are necessary It with specific orientation, is constructed and operated in a specific orientation, therefore should not be understood as limiting the present invention.In addition, Term " first ", " second " are used for descriptive purposes only and cannot be understood as indicating or suggesting relative importance.

In the description of the present invention, it should be noted that unless otherwise clearly defined and limited, term " is pacified Dress ", " being provided with ", " connection " etc., shall be understood in a broad sense, such as " connection ", may be a fixed connection, be also possible to detachably connect It connects, or is integrally connected；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, intermediate matchmaker can also be passed through Jie is indirectly connected, and can be the connection inside two elements.It for the ordinary skill in the art, can be with concrete condition Understand the concrete meaning of above-mentioned term in the present invention.

It please refers to Fig.1 to Fig.3, a kind of embodiment provided by the utility model: a kind of noise reducing type exhaust fan, including air hose 1, First noise reduction ring 2, the second noise reduction ring 3, motor 6 and embeded slot 12, air hose 1 are internally provided with motor 6, and motor 6 uses 3I/ RK15A-C type, the model motor 6 have small in size, light-weight and fast revolving speed advantage, can meet the needs of actual use, lead to Cross model and search those of skill in the art and directly purchase on the market, it should be understood that when model device can directly leaf through and look into Technical specification is looked for be understood, therefore the equipment is without repeating.6 side outer wall of motor is rotatably equipped with shaft 9, shaft 9 Flabellum 7 is installed away from 6 side outer wall of motor, motor 6 drives flabellum 7 to be rotated by shaft 9, and flabellum 7 rotates Shi Kejia Fast 1 inner air of air hose flowing speed realizes the exchange of air, keeps room air to inject fresh air into interior It is pure and fresh.6 outer wall of motor is connected by bracket 10 with 1 inner wall of air hose, and 6 upper end side outer wall of motor is equipped with outside air hose 1 Motor 6 can be electrically connected to a power source by the power supply line 11 of wall, power supply line 11, ensure the power source of motor 6.

1 two sides inner wall of air hose is provided with symmetrical the first noise reduction ring 2 and the second noise reduction ring 3,2 diameter of the first noise reduction ring Greater than 3 diameter of the second noise reduction ring, and 2 diameter of the first noise reduction ring is less than 1 inner diameter of air hose, and the second noise reduction ring 3 is located at the first drop It makes an uproar inside ring 2,2 outer wall of the first noise reduction ring and inner wall pass through the connecting plate 5 of rounded array distribution and 1 inner wall of air hose and second 3 outer wall of noise reduction ring is connected.First noise reduction ring 2 and 3 outer wall of the second noise reduction ring are socketed with silencing cotton 8.Silencing cotton 8 is using quartz The natural crystals such as sand, lime stone, dolomite are primary raw material, and the industrial chemicals such as some soda ash, borax is cooperated to be melt into glass.Melting Under change state, cotton-shaped fine fibre is got rid of by external force blowing produced, is crossings on different level between fiber and fiber, is wrapped in one mutually It rises, shows many tiny gaps, gap can absorb noise wave, keeps noise wave internally reflected, thus weaken sound wave energy, Achieve the purpose that noise reduction.When motor 6 drives flabellum 7 to rotate, noise and flabellum 7 and air that motor 6 itself generates when operating It rubs the vibration generated and the noise that occurs can reverberate inside air hose 1, and air is followed to flow, sound wave travels to interior, right Indoor people generate sense of discomfort, and the silencing cotton 8 on 3 surface of the first noise reduction ring 2 and the second noise reduction ring can will shake inside air hose 1 Noise is absorbed, and noise wave is made, toward interflection, gradually to weaken the energy of noise wave, to reach noise reduction in 8 inside of silencing cotton Effect, reduce motor 6 operate when and flabellum 7 generate noise, improve the comfort level of actual use.

Two the first noise reduction rings 2 and the second noise reduction ring 3 are away from each other side outer wall and offer embeded slot 12, and silencing cotton 8 is opened Be respectively positioned on inside embeded slot 12 at mouthful, be plugged with rubber ring 4 inside embeded slot 12, silencing cotton 8 be socketed on the first noise reduction ring 2 and When on the second noise reduction ring 3, the raised side insertion of rubber ring 4 can be mounted in embeded slot 12 by staff, thus by silencing cotton 8 Opening be entrenched in embeded slot 12, silencing cotton 8 is fixed, easily facilitate staff carry out installation and replacement.Two A first noise reduction ring 2 and the second noise reduction ring 3 are symmetrically distributed in 6 two sides of motor.

Working principle: when motor 6 drives flabellum 7 to rotate, noise and flabellum 7 and air that motor 6 itself generates when operating It rubs the vibration generated and the noise that occurs can reverberate inside air hose 1, and air is followed to flow, sound wave travels to interior, right Indoor people generate sense of discomfort, and the silencing cotton 8 on 3 surface of the first noise reduction ring 2 and the second noise reduction ring can will shake inside air hose 1 Noise is absorbed, and noise wave is made, toward interflection, gradually to weaken the energy of noise wave, to reach noise reduction in 8 inside of silencing cotton Effect, reduce motor 6 operate when and flabellum 7 generate noise, improve the comfort level of actual use.Silencing cotton 8 is socketed in When on one noise reduction ring 2 and on the second noise reduction ring 3, the raised side insertion of rubber ring 4 can be mounted in embeded slot 12 by staff, To which the opening of silencing cotton 8 to be entrenched in embeded slot 12, silencing cotton 8 is fixed, easily facilitates staff's progress Installation and replacement.

It is obvious to a person skilled in the art that the present invention is not limited to the details of the above exemplary embodiments, and And without departing substantially from the spirit or essential attributes of the utility model, it can realize that this is practical new in other specific forms Type.Therefore, in all respects, the present embodiments are to be considered as illustrative and not restrictive, this is practical new The range of type is indicated by the appended claims rather than the foregoing description, it is intended that containing for the equivalent requirements of the claims will be fallen in All changes in justice and range are embraced therein.It should not treat any reference in the claims as limiting Related claim.

Claims (5)

1. a kind of noise reducing type exhaust fan, including air hose (1), the first noise reduction ring (2), the second noise reduction ring (3), motor (6) and chimeric Slot (12), it is characterised in that: air hose (1) two sides inner wall is provided with symmetrical the first noise reduction ring (2) and the second noise reduction Ring (3), second noise reduction ring (3) are located at the first noise reduction ring (2) inside, and the first noise reduction ring (2) outer wall and inner wall are logical The connecting plate (5) for crossing rounded array distribution is connected with air hose (1) inner wall and the second noise reduction ring (3) outer wall, first drop It makes an uproar ring (2) and the second noise reduction ring (3) outer wall is socketed with silencing cotton (8), two first noise reduction rings (2) and the second noise reduction ring (3) side outer wall is away from each other to offer embeded slot (12), silencing cotton (8) opening is respectively positioned on embeded slot (12) inside, It is plugged with rubber ring (4) inside the embeded slot (12), the air hose (1) is internally provided with motor (6), the motor (6) one Side outer wall is rotatably equipped with shaft (9), and the shaft (9) is equipped with flabellum (7) away from motor (6) side outer wall.

2. a kind of noise reducing type exhaust fan according to claim 1, it is characterised in that: the first noise reduction ring (2) diameter is big In the second noise reduction ring (3) diameter, and the first noise reduction ring (2) diameter is less than air hose (1) inner diameter.

3. a kind of noise reducing type exhaust fan according to claim 1, it is characterised in that: two first noise reduction rings (2) and Second noise reduction ring (3) is symmetrically distributed in motor (6) two sides.

4. a kind of noise reducing type exhaust fan according to claim 1, it is characterised in that: motor (6) outer wall passes through bracket (10) it is connected with air hose (1) inner wall.

5. a kind of noise reducing type exhaust fan according to claim 1, it is characterised in that: motor (6) upper end side outer wall Power supply line (11) through air hose (1) outer wall is installed.