CN208966714U - A kind of low noise flow-mixing blower fan - Google Patents

Abstract

The utility model discloses a kind of low noise flow-mixing blower fan, including shell, air inlet, air outlet, the inner walls are equipped with the first noise reduction layer, the air inlet right end is equipped with air filtration layer, the air filtration layer right end is equipped with motor, the motor left end is connected with impeller, the motor is connect by supporting element with shell, insulating layer and the second noise reduction layer are successively arranged outside the supporting element from inside to outside, the motor surface is coated with radiator, the radiator includes cooling fin, the cooling fin is equipped with metal coil pipe, the metal coil pipe sequentially passes through each row's notch and forms continuous U-shaped structure, the air outlet left end is equipped with flow diverter, the shell lower end is equipped with damping base.The utility model has many advantages, such as that low noise, thermal diffusivity are good, crosses air filtering, protects impeller.

Description

A kind of low noise flow-mixing blower fan

Technical field

The utility model relates to Fan Equipment technical field, specially a kind of low noise flow-mixing blower fan.

Background technique

Mixed flow fan combines the feature of axial fan and centrifugal fan, and shape appears more like traditional axis stream Formula blower, but coefficient of wind pres is higher than axial flow blower, and discharge coefficient is bigger than centrifugal blower, it has filled up axial flow blower and centrifugal blower Between blank.With high pressure, big flow, compact-sized, revolving speed is small, small in size, light-weight, high-efficient, easy for installation etc. Feature.Flow-mixing blower fan is widely used in the ventilations in places such as tunnel, underground garage, advanced civil buildings, metallurgy, factories and miness and disappears High temperature-proof smoke evacuation.

Patent publication No. is a kind of noise-damping ventilating machine of mixed flow type chassis of CN201786764U, which, which uses, has The high-efficient low-noise mixed flow fan of good aeroperformance, is integrated with the compound sound attenuator structure of frame, makes it have and make an uproar The advantages that sound is low, with small vibration, good appearance, easy for installation, reliable.But still in place of Shortcomings: one, motor operation can produce Heat amount, and lack radiator in body, radiate the unsmooth service life that can reduce motor, impeller for a long time；Two, only into Wind carries out noise reduction, the noise not noise reduction of noise and outlet air that motor impeller generates, and erasure effect is poor；Three, air inlet It is not provided with Air Filter, some large particulate matters can be sucked in ventilation process, these large particulate matters are touched with high-speed rotating impeller It hits, impeller failure can be made.

Utility model content

The purpose of this utility model is just providing a kind of low noise flow-mixing blower fan to solve the problem above-mentioned.

The utility model is achieved through the following technical solutions above-mentioned purpose, a kind of low noise flow-mixing blower fan, including shell, Air inlet and outlet, the air inlet are located at the left end of shell, and the air outlet is located at the right end of shell, it is characterized in that: described Inner walls are equipped with the first noise reduction layer, and the air inlet right end is equipped with air filtration layer, and the air filtration layer right end is equipped with electricity Machine, the motor left end are connected with impeller, and the motor is connect by supporting element with shell, outside the supporting element from inside to outside It is successively arranged insulating layer and the second noise reduction layer, the motor surface is coated with radiator, and the radiator includes cooling fin, The cooling fin is equipped with several notch being arranged in array, the notch semicircular in shape protrusion, and the cooling fin is equipped with gold Belong to coil pipe, the metal coil pipe sequentially passes through each row's notch and forms continuous U-shaped structure, and the metal coil pipe and cooling fin are close Fitting, the air outlet left end are equipped with flow diverter, and the shell lower end is equipped with damping base.

Preferably, first noise reduction layer is sound-absorbing rock wool layer.

Preferably, HEPA filter screen is equipped in the air filtration layer.

Preferably, the insulating layer is ceramic layer, and second noise reduction layer is glass fibre cotton layer, and the shell outer end is set There is terminal box.

Preferably, the damping base includes buffer layer, and the buffer layer lower end is fixedly connected with several screw rods, described to subtract It shakes layer lower end and is equipped with bottom plate, the bottom plate upper end is fixedly connected with sleeve, and the bottom of the screw rod is on sleeve, the screw rod It is threaded with nut, the nut lower end is equipped with gasket, and the screw rod outer cover between the gasket and sleeve is equipped with damping bullet Spring, the bottom plate lower end are equipped with several yielding rubber blocks in array-like distribution.

Preferably, the impeller includes blade, and the blade right end is fold-line-shaped, and the blade surface is equipped with three transverse directions Convex block.

Preferably, it is equipped between the air filtration layer and motor and flows film.

Compared with prior art, the utility model has the beneficial effects that

1, the utility model is by setting radiator, and the heat transfer that motor operation generates is to cooling fin and metal dish Pipe, air inlet pass through radiator, the heat on cooling fin and metal coil pipe are taken away, and improve enclosure interior heat dissipation.

2, the utility model generates motor impeller by setting the first noise reduction layer, the second noise reduction layer, flow diverter Noise and the noise of outlet air carry out noise reduction noise abatement, reduce blower overall noise.

3, for the utility model by setting blade, blade right end is fold-line-shaped, avoids the effect of air inlet with blade right edge Power is excessive, generates noise, and blade surface is equipped with three lateral projections, can change blowing to for air inlet, avoids air inlet after impeller, It is directly impacted with shell and generates noise, while also avoiding the excessive damaged blade of wind-force.

4, the utility model adsorbs the bulky grain and molecule that enter blower by setting air filtration layer, It protects impeller not collided, damaged, improves the service life of impeller.

Detailed description of the invention

Fig. 1 is a kind of half section schematic of low noise flow-mixing blower fan of the utility model；

Fig. 2 is a kind of blade construction schematic diagram of low noise flow-mixing blower fan of the utility model；

Fig. 3 is a kind of construction for heat radiating device schematic diagram of low noise flow-mixing blower fan of the utility model；

Fig. 4 is a kind of damping base schematic diagram of internal structure of low noise flow-mixing blower fan of the utility model.

Appended drawing reference: 1, shell；2, impeller；3, terminal box；4, radiator；5, motor；6, air outlet；7, flow diverter； 8, damping base；9, the first noise reduction layer；10, blade；11, the second noise reduction layer；12, supporting element；13, insulating layer；14, air inlet； 15, air filtration layer；16, film is flowed；17, lateral projections；18, notch；19, cooling fin；20, buffer layer；21, screw rod；22, subtract Shake spring；23, nut；24, gasket；25, bottom plate；26, yielding rubber block；27, sleeve；28, metal coil pipe.

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.

It please refers to shown in Fig. 1-4, a kind of low noise flow-mixing blower fan, including shell 1, air inlet 14, air outlet 6, air inlet 14 are located at the left end of shell 1, and air outlet 6 is located at the right end of shell 1, and 1 outer end of shell is equipped with terminal box 3, and 1 inner wall of shell is equipped with the One noise reduction layer 9, the first noise reduction layer 9 are sound-absorbing rock wool layer, and 14 right end of air inlet is equipped with air filtration layer 15, in air filtration layer 15 Equipped with HEPA filter screen, 15 right end of air filtration layer is equipped with motor 5, is equipped between air filtration layer 15 and motor 5 and flows film 16, 5 left end of motor is connected with impeller 2, and impeller 2 includes blade 10, and 10 right end of blade is fold-line-shaped, and 10 surface of blade is equipped with three cross To convex block 17, motor 5 is connect by supporting element 12 with shell 1, is successively arranged 13 He of insulating layer outside supporting element 12 from inside to outside Second noise reduction layer 11, insulating layer 13 are ceramic layer, and the second noise reduction layer 11 is glass fibre cotton layer, and 6 left end of air outlet is equipped with drainage Device 7.

5 surface of motor is coated with radiator 4, and radiator 4 includes cooling fin 19, and cooling fin 19 is equipped with to be arranged in array Several notch 18 of cloth, notch 18 semicircular in shape protrusion, cooling fin 19 are equipped with metal coil pipe 28, and metal coil pipe 28 sequentially passes through Each row's notch 18 forms continuous U-shaped structure, and metal coil pipe 28 is fitted closely with cooling fin 19.

1 lower end of shell is equipped with damping base 8, and damping base 8 includes buffer layer 20, if 20 lower end of buffer layer is fixedly connected with Dry screw rod 21,20 lower end of buffer layer are equipped with bottom plate 25, and 25 upper end of bottom plate is fixedly connected with sleeve 27, and the bottom of screw rod 21 is through slotting 27 are covered, nut 23 is threaded on screw rod 21,23 lower end of nut is equipped with gasket 24, the screw rod 21 between gasket 24 and sleeve 27 Outer cover is equipped with damping spring 22, and 25 lower end of bottom plate is equipped with several yielding rubber blocks 26 in array-like distribution.

Utility model works principle:

The energization of terminal box 3 runs motor 5, and motor 5 is connect by supporting element 12 with shell 1, the rotation of 5 impeller 2 of motor Turn, air inlet made to enter shell 1 from air inlet 14, first passes through air filtration layer 15, be equipped with HEPA filter screen in air filtration layer 15, The bulky grain and molecule that enter blower are adsorbed, impeller 2 is protected not collided, damaged, that improves impeller 2 uses the longevity Life forms the horizontal gas flow of high quality using film 16 is flowed, and reduces non-uniform air inlet air-flow and makes an uproar to the impact generation of shell 1 Sound, while stream film 16 also has many advantages, such as that windage is small, waterproof, while guaranteeing air intake, protect 1 interior arrangement of shell not by Tide gets rusty, and then for air inlet by impeller 2, impeller 2 includes blade 10, and 10 right end of blade is fold-line-shaped, avoids air inlet and blade 10 The active force of right edge is excessive, generates noise, and 10 surface of blade is equipped with three lateral projections 17, can change blowing to for air inlet, keep away Exempt from air inlet directly to impact with shell 1 after impeller 2 and generate noise, while also avoiding the excessive damaged blade 10 of wind-force.

Then the radiator 4 that air inlet is equipped with 5 surface of motor contacts, and radiator 4 includes cooling fin 19, cooling fin 19 Several notch 18 being arranged in array, notch 18 semicircular in shape protrusion are equipped with, cooling fin 19 is equipped with metal coil pipe 28, metal Coil pipe 28 sequentially passes through each row's notch 18 and forms continuous U-shaped structure, and metal coil pipe 28 is fitted closely with cooling fin 19, motor 5 The heat transfer generated is run to cooling fin 19 and metal coil pipe 28, air inlet passes through radiator 4, by cooling fin 19 and metal dish Heat on pipe 28 is taken away, and 1 internal heat dissipating of shell is improved, and 1 inner wall of shell is equipped with the first noise reduction layer 9, and the first noise reduction layer 9 is to inhale Sound rock wool layer is successively arranged insulating layer 13 and the second noise reduction layer 11 outside supporting element 12 from inside to outside, and insulating layer 13 is ceramic layer, Second noise reduction layer 11 is glass fibre cotton layer, carries out noise reduction noise abatement, 6 left end of air outlet to the noise that 5 impeller 2 of motor generates Equipped with flow diverter 7, the outlet air at air outlet 6 can be blowed to and be directed to along the discharge of 1 axis of shell, avoid outlet air at air outlet 6 It is impacted with shell 1 and generates noise, while also increasing air output, and then reduce blower overall noise, 1 lower end of shell is equipped with damping Pedestal 8 buffers the vibration generated when fan operation well, reduces the noise that vibration generates, pacifies fan operation more It is quiet.

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.

In addition, it should be understood that although this specification is described in terms of embodiments, but not each embodiment is only wrapped Containing an independent technical solution, this description of the specification is merely for the sake of clarity, and those skilled in the art should It considers the specification as a whole, the technical solutions in the various embodiments may also be suitably combined, forms those skilled in the art The other embodiments being understood that.

Claims (7)

1. a kind of low noise flow-mixing blower fan, including shell (1), air inlet (14), air outlet (6), the air inlet (14) are located at The left end of shell (1), the air outlet (6) are located at the right end of shell (1), it is characterized in that: the shell (1) inner wall is equipped with first Noise reduction layer (9), air inlet (14) right end are equipped with air filtration layer (15), and air filtration layer (15) right end is equipped with motor (5), motor (5) left end is connected with impeller (2), and the motor (5) is connect by supporting element (12) with shell (1), described Insulating layer (13) and the second noise reduction layer (11), motor (5) the surface cladding are successively arranged outside supporting element (12) from inside to outside Have radiator (4), the radiator (4) includes cooling fin (19), and the cooling fin (19) is equipped with and is arranged in array Several notch (18), notch (18) the semicircular in shape protrusion, the cooling fin (19) are equipped with metal coil pipe (28), the gold Belong to coil pipe (28) and sequentially pass through each row's notch (18) and forms continuous U-shaped structure, the metal coil pipe (28) and cooling fin (19) It fits closely, air outlet (6) left end is equipped with flow diverter (7), and shell (1) lower end is equipped with damping base (8).

2. a kind of low noise flow-mixing blower fan according to claim 1, it is characterised in that: first noise reduction layer (9) is to inhale Sound rock wool layer.

3. a kind of low noise flow-mixing blower fan according to claim 1, it is characterised in that: set in the air filtration layer (15) There is HEPA filter screen.

4. a kind of low noise flow-mixing blower fan according to claim 1, it is characterised in that: the insulating layer (13) is ceramics Layer, second noise reduction layer (11) are glass fibre cotton layer, and shell (1) outer end is equipped with terminal box (3).

5. a kind of low noise flow-mixing blower fan according to claim 1, it is characterised in that: the damping base (8) includes subtracting It shakes layer (20), buffer layer (20) lower end is fixedly connected with several screw rods (21), and buffer layer (20) lower end is equipped with bottom plate (25), bottom plate (25) upper end is fixedly connected with sleeve (27), and sleeve (27) are run through in the bottom of the screw rod (21), the spiral shell It is threaded on bar (21) nut (23), nut (23) lower end is equipped with gasket (24), the gasket (24) and sleeve (27) screw rod (21) outer cover between is equipped with damping spring (22), and bottom plate (25) lower end is equipped with several in array-like distribution Yielding rubber block (26).

6. a kind of low noise flow-mixing blower fan according to claim 1, it is characterised in that: the impeller (2) includes blade (10), blade (10) right end is fold-line-shaped, and blade (10) surface is equipped with three lateral projections (17).

7. a kind of low noise flow-mixing blower fan according to claim 1, it is characterised in that: the air filtration layer (15) and electricity It is equipped between machine (5) and flows film (16).