CN211174807U

CN211174807U - Low-noise mixed flow ventilator

Info

Publication number: CN211174807U
Application number: CN201921713062.1U
Authority: CN
Inventors: 奚小平; 奚林
Original assignee: Anhui Yueda Environmental Protection Science & Technology Co ltd
Current assignee: Anhui Yueda Environmental Protection Science & Technology Co ltd
Priority date: 2019-10-13
Filing date: 2019-10-13
Publication date: 2020-08-04
Anticipated expiration: 2029-10-13

Abstract

The utility model provides a low noise mixed flow ventilation blower, including fan casing, be equipped with the puigging on fan casing's the inner wall, the puigging is kept away from one side of fan casing inner wall is equipped with the acoustical panel of making an uproar of falling, it keeps away from to fall the acoustical panel of making an uproar one side of puigging is passed through the bolt symmetry and is installed the elastic plate, two the elastic plate is kept away from one side of the acoustical panel of making an uproar of falling all is equipped with the mount pad, two the mount pad is kept away from one side of the acoustical panel of making an uproar of falling is equipped with driving motor, the bilateral symmetry of driving motor tip is equipped with the dead lever, two all be equipped with spiral water conservancy diversion piece, two all adhere. The utility model discloses a noise reduction silencing sponge layer of the wave crest of the bloop of making an uproar acoustical panel, puigging of making an uproar can absorb the noise that air inlet, air-out and impeller rotation produced, and the low noise of mixed flow ventilation blower has been realized to the noise reduction.

Description

Low-noise mixed flow ventilator

Technical Field

The utility model mainly relates to a mixed flow ventilation blower technical field specifically is a low noise mixed flow ventilation blower.

Background

The mixed flow fan is a fan between an axial flow fan and a centrifugal fan, the impeller of the mixed flow fan enables air to do centrifugal motion and axial motion, and the motion of the air in the shell mixes the two motion forms of the axial flow and the centrifugal motion, so the mixed flow fan is called mixed flow. The mixed flow (oblique flow) fan has higher wind pressure coefficient than axial flow fan and larger flow coefficient than centrifugal fan, and is used in the place where both wind pressure and flow are not small. The gap between the axial flow fan and the centrifugal fan is filled. Meanwhile, the device has the characteristics of simplicity and convenience in installation.

The existing mixed-flow ventilator can generate certain noise during working due to air inlet, air outlet and impeller rotation, and the mixed-flow ventilator on the market has poor noise removing effect, is easy to influence the production and life of people and influences the life quality of people.

Therefore, there is a need to develop a low-noise mixed flow ventilator to improve the life quality of people.

SUMMERY OF THE UTILITY MODEL

The utility model mainly provides a low noise mixed flow ventilation blower for solve the technical problem who proposes among the above-mentioned background art.

The utility model provides a technical scheme that above-mentioned technical problem adopted does:

a low-noise mixed-flow ventilator comprises a fan shell, wherein a sound insulation layer is arranged on the inner wall of the fan shell, one side, far away from the inner wall of the fan shell, of the sound insulation layer is provided with a noise-reducing and silencing plate, the noise-reducing and silencing plate is close to the outer edge and is fixedly connected with the sound insulation layer and the inner wall of the fan shell through bolts respectively, one side, far away from the sound insulation layer, of the noise-reducing and silencing plate is provided with elastic plates through bolt symmetry, one side, far away from the noise-reducing and silencing plate, of each of the two elastic plates is provided with a mounting seat, one side, far away from the noise-reducing and silencing plate, of each of the two mounting seats is provided with a driving motor, two sides of the driving motor are fixedly connected with the surface of the mounting seat through bolts, two sides of the end part of the driving motor are symmetrically provided with fixing rods, the outer walls of the two, and the inner walls of the two spiral flow deflectors are both bonded with a silencing sponge layer.

Furthermore, a plurality of silencing holes are equidistantly formed in the outer wall of the noise-reducing silencing plate.

Furthermore, the sound-proof layer is including the wave crest sound-absorbing sponge layer, all adhere polyester fiber layer on the interior lateral wall of wave crest sound-absorbing sponge layer.

Furthermore, two the mount pad is kept away from the equal equidistance in one side of driving motor is equipped with a plurality of buffer, and is a plurality of buffer all includes first fixing base, and is a plurality of first fixing base all is embedded in two the mount pad, and is a plurality of one side of first fixing base all is equipped with buffer spring, and is a plurality of buffer spring keeps away from a plurality of the one end of first fixing base all is equipped with the second fixing base, and is a plurality of buffer spring's one end is all kept away from to the second fixing base is through bolt and two elastic plate fixed connection.

Furthermore, a plurality of first fixing seats are far away from two limiting blocks are symmetrically welded on one sides of the mounting seats.

Furthermore, driving motor's output is equipped with wheel hub, wheel hub's one end center department through the bearing with driving motor's output rotates and connects, wheel hub's peripheral equidistance welding has a plurality of impellers, and is a plurality of the one end of impeller is equipped with the mass flow muffler, the mass flow muffler is kept away from a plurality of the symmetrical welding of one side of impeller has the installation piece, two the installation piece is kept away from the one end of mass flow muffler pass through the bolt with the inside wall fixed connection of fan casing, just install a plurality of fin through the bolt equidistance on driving motor's the outer wall.

Furthermore, an extension part is welded on the outer wall of the air outlet of the fan shell, a dust screen is arranged on the inner wall of the extension part, the outer edge of the dust screen is fixedly connected with the inner wall of the extension part through bolts, and triangular fixing seats are symmetrically welded at the bottom of the fan shell.

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

one of the two-stage mixed flow ventilator is low in noise, noise generated by air outlet and rotation of the impeller can be absorbed through the silencing holes of the noise reduction and silencing plate and the wave crest sound absorption sponge layer of the sound insulation layer, noise generated by rotation of the air outlet and the impeller is reduced, wind is guided out from the air outlet through the spiral flow guide pieces of the air outlet, the noise generated when the air outlet is absorbed by the silencing sponge layer in the spiral flow guide pieces, and the two-stage mixed flow ventilator is used in a matched mode, so that low noise of the mixed flow ventilator is achieved;

secondly, the utility model has the function of stabilizing the wind pressure, realizes the function of collecting and stabilizing the pressure through the collecting silencer, and can eliminate the noise generated during the wind inlet, and has certain silencing function;

thirdly, the utility model discloses have the cushioning effect, cushioned the vibration that the device during operation received through buffer spring and stopper of buffer, ability securing device.

The present invention will be explained in detail with reference to the drawings and specific embodiments.

Drawings

Fig. 1 is a schematic view of the overall structure of the present invention;

FIG. 2 is a cross-sectional view of the overall structure of the present invention;

FIG. 3 is a sectional view of the sound insulation layer structure of the present invention;

fig. 4 is a sectional view of the mounting seat structure of the present invention.

Reference numerals: 1. a fan housing; 11. a triangular fixed seat; 12. an extension portion; 13. a dust screen; 14. noise reduction and silencing plates; 141. a silencing hole; 15. a sound insulating layer; 151. a wave crest sound absorption sponge layer; 152. a polyester fiber layer; 2. a drive motor; 21. a mounting seat; 22. a heat sink; 3. a hub; 4. an impeller; 5. a collector silencer; 51. mounting blocks; 6. fixing the rod; 61. a spiral flow deflector; 612. a sound-deadening sponge layer; 7. a buffer device; 71. a first fixed seat; 711. a limiting block; 72. a buffer spring; 73. a second fixed seat; 8. an elastic plate.

Detailed Description

In order to facilitate understanding of the present invention, the present invention will be described more fully with reference to the accompanying drawings, in which several embodiments of the present invention are shown, but the present invention can be implemented in different forms, and is not limited to the embodiments described in the text, but rather, these embodiments are provided to make the disclosure of the present invention more thorough and comprehensive.

It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may be present, and when an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present, as the terms "vertical", "horizontal", "left", "right" and the like are used herein for descriptive purposes only.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs, and the use of the term knowledge in the specification of the present invention is for the purpose of describing particular embodiments and is not intended to limit the present invention, and the term "and/or" as used herein includes any and all combinations of one or more of the associated listed items.

Please refer to fig. 1-4, which illustrate a low-noise mixed flow ventilator, comprising a fan housing 1, wherein a sound insulation layer 15 is disposed on an inner wall of the fan housing 1, a noise reduction and sound insulation plate 14 is disposed on a side of the sound insulation layer 15 away from the inner wall of the fan housing 1, the noise reduction and sound insulation plate 14 is fixedly connected to the sound insulation layer 15 and the inner wall of the fan housing 1 by bolts, respectively, elastic plates 8 are symmetrically mounted on a side of the noise reduction and sound insulation plate 14 away from the sound insulation layer 15 by bolts, mount bases 21 are disposed on sides of the two elastic plates 8 away from the noise reduction and sound insulation plate 14, a driving motor 2 is disposed on a side of the two mount bases 21 away from the noise reduction and sound insulation plate 14, two sides of the driving motor 2 are fixedly connected to a surface of the mount bases 21 by bolts, fixing rods 6 are symmetrically disposed on two sides of an end portion of the driving, spiral flow deflectors 61 are arranged on the outer walls of the two fixing rods 6, the end portions of the spiral flow deflectors 61 are fixedly connected with the outer walls of the two fixing rods 6 through bolts, and silencing sponge layers 612 are bonded and connected to the inner walls of the spiral flow deflectors 61.

Please refer to fig. 1 again, an extension portion 12 is welded on an outer wall of an air outlet of the fan casing 1, a dust screen 13 is arranged on an inner wall of the extension portion 12, an outer edge of the dust screen 13 is fixedly connected with the inner wall of the extension portion 12 through a bolt, and triangular fixing seats 11 are symmetrically welded at the bottom of the fan casing 1. In this embodiment, prevent through dust screen 13 that the fan during operation from causing the damage to the fan with inside large granule thing suction fan.

Please refer to fig. 2 again, the output end of the driving motor 2 is provided with a hub 3, the center of one end of the hub 3 is rotatably connected with the output end of the driving motor 2 through a bearing, a plurality of impellers 4 are equidistantly welded on the outer periphery of the hub 3, one ends of the plurality of impellers 4 are provided with collecting silencers 5, one sides of the collecting silencers 5 far away from the plurality of impellers 4 are symmetrically welded with mounting blocks 51, one ends of the two mounting blocks 51 far away from the collecting silencers 5 are fixedly connected with the inner side wall of the fan housing 1 through bolts, and the outer wall of the driving motor 2 is equidistantly provided with a plurality of cooling fins 22 through bolts. In this embodiment, the mass flow and pressure stabilizing effect is realized through the mass flow silencer 5, and meanwhile, the air inlet has a certain silencing effect, so that the noise generated during air inlet is reduced.

Please refer to fig. 2-3, the noise reduction and noise elimination plate 14 has a plurality of noise elimination holes 141 equidistantly formed on an outer wall thereof, the noise elimination layer 15 includes a wave crest sound absorption sponge layer 151, and polyester fiber layers 152 are adhered to inner and outer walls of the wave crest sound absorption sponge layer 151. In this embodiment, the noise generated by the rotation of the impeller 4 and the outlet air can be absorbed by the sound-absorbing holes 141 of the noise-reducing and sound-absorbing plate 14 and the wave crest sound-absorbing sponge layer 151 of the sound-absorbing layer 15, so as to reduce the influence of the noise on people.

Please refer to fig. 4, one side of each of the two mounting seats 21 away from the driving motor 2 is provided with a plurality of buffering devices 7 at equal intervals, each of the plurality of buffering devices 7 includes a first fixing seat 71, the plurality of first fixing seats 71 are embedded in the two mounting seats 21, one side of each of the plurality of first fixing seats 71 is provided with a buffering spring 72, one end of each of the plurality of buffering springs 72 away from the plurality of first fixing seats 71 is provided with a second fixing seat 73, one end of each of the plurality of second fixing seats 73 away from the plurality of buffering springs 72 is fixedly connected to the two elastic plates 8 through a bolt, and one side of each of the plurality of first fixing seats 71 away from the two mounting seats 21 is symmetrically welded with a limiting block 711. In this embodiment, the buffer spring 72 and the stopper 711 of the buffer device 7 buffer the vibration of the device, and stabilize the device.

The utility model discloses a concrete operation as follows:

when the utility model is used, at first start the mixed flow ventilation blower, this moment, driving motor 2 rotates through the impeller 4 of installation on wheel hub 3 and makes wind get into from the air intake, prevent through dust screen 13 that the fan during operation inhales the fan with the large granule thing inside, later wind has realized the effect of mass flow steady voltage through mass flow muffler 5, make the air intake have certain noise cancelling effect simultaneously, the noise that produces when reducing the air intake, noise that produces can absorb the noise that air-out and impeller 4 rotate through the bloop 141 of the noise reduction acoustical panel 14 and the crest of puigging layer 15 at this moment, the noise is reduced, export wind from the air outlet through spiral guide vane 61 after the wind mixed flow, noise that produces when absorbing the air-out through the amortization sponge layer 612 in the spiral guide vane 61 at this moment;

the buffer spring 72 and the limiting block 711 of the buffer device 7 buffer the vibration received by the device during working, and the device can be stabilized.

The above description of the present invention is made in conjunction with the accompanying drawings, and it is obvious that the present invention is not limited by the above embodiments, and the method and the technical solution of the present invention are not substantially improved or directly applied to other occasions without improvement, and are all within the protection scope of the present invention.

Claims

1. A low noise mixed flow ventilator, including fan casing (1), its characterized in that: the inner wall of the fan shell (1) is provided with a sound insulation layer (15), one side, far away from the inner wall of the fan shell (1), of the sound insulation layer (15) is provided with a noise reduction and sound insulation plate (14), the noise reduction and sound insulation plate (14) is close to the outer edge and is fixedly connected with the sound insulation layer (15) and the inner wall of the fan shell (1) through bolts respectively, one side, far away from the sound insulation layer (15), of the noise reduction and sound insulation plate (14) is symmetrically provided with elastic plates (8) through bolts, one sides, far away from the noise reduction and sound insulation plate (14), of the two elastic plates (8) are both provided with mounting seats (21), one sides, far away from the noise reduction and sound insulation plate (14), of the two mounting seats (21) are provided with driving motors (2), two sides of the driving motors (2) are both fixedly connected with the surfaces of the mounting seats (21) through bolts, and fixing rods (6, spiral flow deflectors (61) are arranged on the outer walls of the two fixing rods (6), the end portions of the spiral flow deflectors (61) are fixedly connected with the outer walls of the two fixing rods (6) through bolts, and silencing sponge layers (612) are bonded on the inner walls of the spiral flow deflectors (61).

2. A low noise mixed flow ventilator as claimed in claim 1, wherein: a plurality of silencing holes (141) are equidistantly arranged on the outer wall of the noise-reducing silencing plate (14).

3. A low noise mixed flow ventilator as claimed in claim 1, wherein: the sound insulation layer (15) comprises a wave crest sound absorption sponge layer (151), and polyester fiber layers (152) are bonded on the inner wall and the outer wall of the wave crest sound absorption sponge layer (151).

4. A low noise mixed flow ventilator as claimed in claim 1, wherein: two mount pad (21) are kept away from one side equal equidistance of driving motor (2) is equipped with a plurality of buffer (7), and is a plurality of buffer (7) all include first fixing base (71), and are a plurality of first fixing base (71) all embedded in two mount pad (21), it is a plurality of one side of first fixing base (71) all is equipped with buffer spring (72), and is a plurality of buffer spring (72) are kept away from a plurality of the one end of first fixing base (71) all is equipped with second fixing base (73), and is a plurality of is kept away from in second fixing base (73) a plurality of the one end of buffer spring (72) all passes through bolt and two elastic plate (8) fixed connection.

5. A low noise mixed flow ventilator as claimed in claim 4, wherein: and limiting blocks (711) are symmetrically welded on one side, away from the two mounting seats (21), of the first fixing seats (71).

6. A low noise mixed flow ventilator as claimed in claim 1, wherein: the output of driving motor (2) is equipped with wheel hub (3), the one end center department of wheel hub (3) through the bearing with the output of driving motor (2) rotates to be connected, the welding of the peripheral equidistance of wheel hub (3) has a plurality of impeller (4), and is a plurality of the one end of impeller (4) is equipped with mass flow muffler (5), a plurality ofly is kept away from in mass flow muffler (5) one side symmetry welding of impeller (4) has installation piece (51), two installation piece (51) are kept away from the one end of mass flow muffler (5) pass through the bolt with the inside wall fixed connection of fan casing (1), just install a plurality of fin (22) through the bolt equidistance on the outer wall of driving motor (2).

7. A low noise mixed flow ventilator as claimed in claim 1, wherein: the fan shell is characterized in that an extension portion (12) is welded to the outer wall of an air outlet of the fan shell (1), a dust screen (13) is arranged on the inner wall of the extension portion (12), the outer edge of the dust screen (13) is fixedly connected with the inner wall of the extension portion (12) through bolts, and triangular fixing seats (11) are symmetrically welded to the bottom of the fan shell (1).