CN2434590Y

CN2434590Y - Sound-proofing exhaust fan

Info

Publication number: CN2434590Y
Application number: CN 00218002
Authority: CN
Inventors: 梁启平
Original assignee: Individual
Current assignee: Individual
Priority date: 2000-06-13
Filing date: 2000-06-13
Publication date: 2001-06-13
Anticipated expiration: 2010-06-13

Abstract

The utility model relates to a soundproof exhaust fan. The soundproof exhaust fan comprises a shell body, a motor, an exhaust impeller which is driven by the motor, and an air flow passage which is communicate with the interior of a room and the exterior of the room by the shell body, wherein, a soundproof material is arranged in the air flow passage. The soundproof exhaust fan of the utility model can be depended to obtain excellent soundproof effect under the condition that exhaust capacity is not influenced.

Description

Sound-proofing exhaust fan

The utility model relates generally to a kind of exhaust fan, particularly relates to the exhaust fan of a kind of energy sound insulation.

Along with the high speed development of urbanization, noise and air-polluting problem become more and more serious.Particularly live in the puzzlement that near the resident in arterial traffic and bustling downtown area tends to endure to the fullest extent noise and air quality difference.

For example by install air-tightness preferably double pane can play the effect of sound insulation, can cause lacking circulation of air and make indoor air dirt but do like this.To this, can be improved by ventilation fan (comprising exhaust fan and supply fan) is installed.But, also do not have a kind of exhaust fan that has the sound insulation function concurrently in the market.

At above problem, the purpose of this utility model is, provide a kind of can exhaust again can sound insulation exhaust fan.

For achieving the above object, the utility model provides a kind of Sound-proofing exhaust fan, comprise that a housing, a motor, one are by described electric motor driven exhaust impeller and the air flow passage that is communicated with through described housing and with indoor and outdoors, wherein, in described air flow passage, be provided with sound-absorbing material.

By Sound-proofing exhaust fan of the present utility model, can under the situation that does not influence exhaust capacity, obtain splendid soundproof effect.If its a kind of " sound insulation filtration supply fan " of applying for simultaneously with the applicant is together used, just can be in the space (as the room that seals by double pane) of relative closure desirable ventilation, the soundproof effect of acquisition.In addition, this Sound-proofing exhaust fan still is a kind of volume product small and exquisite, attractive in appearance, is specially adapted to average family.

By below in conjunction with the description of accompanying drawing, can more clearly understand feature and advantage of the present utility model to two preferred embodiments of the present utility model.In the accompanying drawing:

Fig. 1 a is the stereoscopic figure according to the Sound-proofing exhaust fan of the utility model first embodiment;

Fig. 1 b is the structural perspective of this Sound-proofing exhaust fan;

Fig. 1 c is the cutaway view of this Sound-proofing exhaust fan, shows its structure and operation principle;

Fig. 1 d is the three-dimensional exploded view of this Sound-proofing exhaust fan;

Fig. 2 a is the stereoscopic figure according to the Sound-proofing exhaust fan of the utility model second embodiment;

Fig. 2 b is the cutaway view of this Sound-proofing exhaust fan, shows its structure and operation principle; And

Fig. 3 is the circuit diagram of Sound-proofing exhaust fan.

Shown in Fig. 1 a-1d, be the exhaust fan of a kind of " wall-hanging " according to the Sound-proofing exhaust fan 1 of the utility model first embodiment, its mounting means is similar to common hanging air conditioner.This exhaust fan 1 mainly comprises housing 2, motor 3, wind wheel 4, air inlet pipe 5 and blast pipe 6.Housing 2 is molded with plastics, comprises middle casing 22 and left end shell 21, right-hand member shell 23.Motor 3 and the impeller 4 that drives thereof are the general types that can buy from the market.Motor 3 is controlled its rotating speed by speed regulator or remote controller.Impeller 4 is installed in by in the middle casing 22 formed blast chambers 8.Air inlet pipe 5 is arranged in the housing, extends to blast chamber 8 from left end shell 21.6 of blast pipes are plugged on the rear wall of middle casing 22, and are communicated to outdoor from blast chamber 8.Air inlet pipe 5, blast chamber 8 and blast pipe 6 have formed the air flow passage of exhaust fan 1.

Shown in Fig. 1 c, on the madial wall of air inlet pipe 5, blast pipe 6 and blast chamber 8, be respectively equipped with sound-absorbing material 51,61 and 81, these sound-absorbing materials can be such as fibrofelt, foam sponge, sponge or analog.When air is flowed through pipeline and blast chamber under the swabbing action of impeller 4, can absorb wherein noise by these sound-absorbing materials.In air inlet pipe, also be provided with the cylindric sound-absorbing inner core of making by sound-absorbing material equally 52, to realize sound-absorbing effect better.In this embodiment, each sound-absorbing material fixes by woven wire, but also can fix with the methods that bonding, securing member connection etc. much used always.It should be noted that in this embodiment air inlet pipe 5 is provided with basically mutual vertically with blast pipe 6, thereby outdoor noise has been played a hindrance function.

In addition, shown in Fig. 1 d, that the outdoor end that is communicated in of blast pipe 6 is provided with a stormproof louvre cover 7, and its cover leaf is inclined.Except rainproof, this shutter shield is reflecting background partly, and changes the incident angle of noise waves, noise waves is refracted on the sound absorbing layer of duct wall, thereby makes noise energy fall sharply, and plays good noise elimination, soundproof effect.

Fig. 2 a-2c shows the Sound-proofing exhaust fan 1 ' according to the utility model second embodiment.Sound-proofing exhaust fan 1 ' is the exhaust fan of a kind of " duct type ", cross wall and communication chamber in, outdoor.This Sound-proofing exhaust fan 1 ' mainly comprises housing 2 ', motor 3 ', impeller 4 '.Housing 2 ' is that its length is substantially equal to the thickness of wall with the molded tubular shell that forms of plastics.In this embodiment, directly form air flow passage by housing 2 '.Motor 3 ' is controlled its rotating speed by speed regulator or remote controller.Impeller 4 ' is arranged on the outdoor end of housing 2 ', and its flabellum is to be oriented to room air outwards to be pumped point-blank (that is, air flows from left to right in Fig. 2 b).Be separately installed with indoor end shield 20 ' and stormproof louvre cover 7 ' at the left and right two ends of housing.Also be provided with sound-absorbing material 51 ' on the madial wall of tubular shell 2 ', and have round shape sound-absorbing inner core 52 ', these sound-absorbing materials are fixed by woven wire.The same with first embodiment, these sound-absorbing materials can be drawn noise wherein when air flows through.The effect of stormproof louvre cover 7 ' is similar to the shutter shield 7 among first embodiment, does not add at this and gives unnecessary details.

Advantage according to the Sound-proofing exhaust fan 1 ' of this embodiment is that volume is smaller and more exquisite, adds first concealed design, makes it seem attractive in appearance and does not take up space.

Fig. 3 is the circuit diagram that can be used for the Sound-proofing exhaust fan of first and second embodiment, therefrom as can be seen the utility model Sound-proofing exhaust fan be electrically connected circuit.

Should be appreciated that though abovely by two preferred embodiments the utility model is described, those of ordinary skill in the art still can make the modification of various equivalences on this basis and not depart from essence of the present utility model.Therefore, protection domain of the present utility model should be limited by appended claims.

Claims

1. Sound-proofing exhaust fan, comprise that a housing, a motor, one are by described electric motor driven exhaust impeller and the air flow passage that is communicated with through described housing and with indoor and outdoors, it is characterized in that, in described air flow passage, be provided with sound-absorbing material.

2. Sound-proofing exhaust fan as claimed in claim 1 is characterized in that described air flow passage comprises air inlet pipe, blast pipe and blast chamber, and described air inlet pipe and blast pipe are provided with mutual vertically.

3. Sound-proofing exhaust fan as claimed in claim 1 is characterized in that, that close outdoor end of air flow passage is provided with a stormproof louvre cover, and its cover leaf is inclined.

4. Sound-proofing exhaust fan as claimed in claim 1 is characterized in that, described sound-absorbing material is fixed by woven wire, bonding or securing member ways of connecting.

5. Sound-proofing exhaust fan as claimed in claim 1 is characterized in that, also is provided with cylindric sound-absorbing inner core in described air flow passage.

6. Sound-proofing exhaust fan as claimed in claim 1 is characterized in that described housing is a tubulose, directly forms air flow passage by this housing.

7. Sound-proofing exhaust fan as claimed in claim 6 is characterized in that, impeller is arranged near the outdoor end of housing, and its flabellum is oriented to and room air outwards can be pumped point-blank.

8. Sound-proofing exhaust fan as claimed in claim 1 is characterized in that, described sound-absorbing material can be fibrofelt, foamed material or sponge.