CN216407235U

CN216407235U - Energy-saving and shock-resistant roof ventilator

Info

Publication number: CN216407235U
Application number: CN202122982418.5U
Authority: CN
Inventors: 袁鹏; 余革宇
Original assignee: Wuhan Zhonghan Hvac Equipment Co ltd
Current assignee: Wuhan Zhonghan Hvac Equipment Co ltd
Priority date: 2021-11-27
Filing date: 2021-11-27
Publication date: 2022-04-29
Anticipated expiration: 2031-11-27

Abstract

The application discloses energy-conserving shock-resistant roof ventilation fan, it includes dryer, motor, base, impeller and threaded connection at the hood of dryer air outlet end, the rigid coupling has the sound-proof housing in the dryer, the motor sets up in the sound-proof housing, the motor is close to dryer air intake side rigid coupling has a plurality of shock absorber pieces, and the motor output runs through the sound-proof housing and with be located outside the sound-proof housing impeller coaxial coupling, the sound-proof housing is close to the inner wall rigid coupling of dryer air inlet side has the elastic support device of a plurality of distributions, elastic support device keeps away from the one end of sound-proof housing inner wall with shock absorber piece is connected. This application has the effect that the vibrations and the noise that produce when reducing the ventilation blower operation.

Description

Energy-saving and shock-resistant roof ventilator

Technical Field

The application relates to the technical field of fans, in particular to an energy-saving and shock-resistant roof ventilator.

Background

The roof fan adopts a molded axial flow or centrifugal impeller, a motor special for the fan is directly connected for transmission, an anti-corrosion air duct cap and a metal or glass fiber reinforced plastic air duct base have the characteristics of corrosion resistance, light weight, high strength, stable operation, simple maintenance, low noise, excellent performance and the like, and are widely applied to ventilation of various industries such as power generation, chemical industry, rubber, pharmacy, food processing, metallurgy and the like and high-grade civil buildings.

Chinese patent No. CN201620235192.9 in the related art proposes a damping ventilator. Including hood, dryer, base and impeller, set up bracing piece and air-collecting cover in the dryer, set up the balloon on the bracing piece, the air inlet of balloon is down, and a ventilation duct is connected to the air-collecting cover upper end, and a ventilation duct connects No. two air pipes, and No. two air pipes pass through the connecting rod to be supported, and No. two air pipes connect the latex balloon, and the latex balloon sets up on the side of base, works as the latex balloon aerifys the inflation back, the latex balloon pushes up respectively and leans on base side and installation on the roof panel of base, the base downside is provided with damping device, damping device is including consecutive last fixed block, spring and lower fixed block, go up the fixed block with base downside fixed connection, lower fixed block and installation the roof panel fixed connection of base.

With respect to the related art among the above, the inventors consider that the following drawbacks exist: the life of latex balloon is generally shorter, and stability is not high, and every latex balloon degree of inflation also can not guarantee the same simultaneously, still can not effectively reduce motor vibrations to and the noise that arouses by vibrations.

SUMMERY OF THE UTILITY MODEL

In order to improve the problem that the motor during operation leads to producing the noise because of the collision between each part, this application provides an energy-conserving antidetonation roof fan.

The application provides an energy-conserving antidetonation roof fan adopts following technical scheme:

the utility model provides an energy-conserving shock-resistant roof ventilation fan, includes dryer, motor, base, impeller and threaded connection the hood of dryer air outlet end, the rigid coupling has the sound-proof housing in the dryer, the motor sets up in the sound-proof housing, the motor is close to dryer air intake side rigid coupling has a plurality of pieces of moving away to avoid possible earthquakes, the motor output runs through the sound-proof housing and with be located outside the sound-proof housing impeller coaxial coupling, the sound-proof housing is close to the inner wall rigid coupling of dryer air inlet side has a plurality of elastic support devices, elastic support device keeps away from the one end of sound-proof housing inner wall with the piece of moving away to avoid possible earthquakes is connected.

Through adopting above-mentioned technical scheme, the motor during operation, the piece of moving away to avoid possible earthquakes can reduce the range of motor vibrations to a certain extent, and elastic support device further reduces fan vibration range, and the piece of moving away to avoid possible earthquakes and elastic support device's dual shock attenuation, greatly reduced the motor because of the produced noise of vibrations, noise that the sound-proof housing produced when simultaneously isolated motor vibrations and motor move by a wide margin, reduce the noise that spreads to external in the sound-proof housing to a certain extent.

Optionally, the elastic supporting device comprises a supporting seat and a telescopic supporting rod which are fixedly connected to the inner wall of the sound-proof housing, an elastic piece is sleeved outside the telescopic supporting rod, and two ends of the telescopic supporting rod are respectively hinged to the supporting seat and the motor shell.

Through adopting above-mentioned technical scheme, when the motor takes place vibrations, flexible bracing piece can be flexible with the minor amplitude thereupon, and the spring is also flexible with the minor amplitude, energy during the dissipation vibrations to reach the amplitude that reduces the fan, reduce because of the too big noise that produces of amplitude, flexible bracing piece both ends are articulated with supporting seat and motor respectively simultaneously, also make flexible bracing piece ability minizone removal, make elastic support device can play the shock attenuation effect.

Optionally, dryer air inlet department rigid coupling has the dog and articulates there is the separation blade, and when the ventilation blower stop work, the separation blade leads to because of no longer receiving by the dryer air inlet extremely the wind-force of dryer air outlet the separation blade receive gravity influence automatic closure extremely with the dog offsets.

By adopting the technical scheme, when the motor stops working, the baffle plate is closed to abut against the stop block due to gravity, the inlet of the ventilator is sealed, the impeller is prevented from being influenced by external wind, external wind flows backward from the ventilator, the impeller rotates reversely, the motor is prevented from needing larger torque when the fan is started next time, the damage is caused by overlarge starting current, and meanwhile, the noise generated by blowing indoor loud objects due to the fact that external cold and hot air enters the room is avoided; when the motor works, the baffle is blown to be in a vertical state due to the wind power generated by the rotation of the impeller from the air inlet of the air duct to the air outlet of the air duct, the ventilator is in a passage state at the moment, and the indoor air can be smoothly pumped out to the outside.

Optionally, the sound-proof housing is kept away from the impeller end rigid coupling has the guide plate, the sound-proof housing is close to the impeller end sets up to leak hopper-shaped, and the pointed end is located and is close to the impeller end.

By adopting the technical scheme, the funnel-shaped guide function is played by the guide plate and the sound-proof housing, so that air can smoothly flow to the outlet from the inlet of the ventilator, and the wind noise is reduced while the power consumption of the motor is reduced.

Optionally, a plurality of shock pads are fixedly connected to the inner peripheral wall of the sound-proof housing, and the shock pads just abut against the motor housing.

By adopting the technical scheme, because the motor vibrates in multiple directions, the vibration of the motor in the horizontal direction is greatly reduced by the damping pad, and the vibration amplitude of the motor is further reduced.

Optionally, the shock pad is close to the motor side sets up to the arcuation, just shock pad arcuation radian with motor surface radian is unanimous.

Through adopting above-mentioned technical scheme, the shock pad sets to the arcuation that can increase the area of contact of shock pad and motor with motor surface assorted, improves the shock attenuation efficiency of shock pad.

Optionally, a plurality of pits are formed in the inner wall of the sound-proof housing.

Through adopting above-mentioned technical scheme, when producing the noise in the sound-proof housing, the shrinkage pool can the reflection sound wave, makes the sound wave partly sound wave offset each other when the reflection, has reduced the noise, further improves the syllable-dividing effect of sound-proof housing.

Optionally, a shock-absorbing layer is fixedly connected to a joint of the base and the roof, and elastic pads are sleeved on bolts at the joint of the base and the roof and bolts at the joint of the funnel cap and the air duct.

Through adopting above-mentioned technical scheme, the vibrations of lower frequency are derived through the sound-proof housing in addition after the motor through the shock attenuation to and when receiving the influence of factors such as outside wind-force, shock-absorbing layer and cushion can reduce the vibrations range of ventilation blower by a wide margin.

In summary, the present application includes at least one of the following beneficial technical effects:

1. when the motor works to generate larger vibration, the vibration-proof sheet, the vibration-proof pad and the elastic supporting device can greatly reduce the vibration generated by the motor, avoid the noise and the damage to equipment caused by the vibration, and simultaneously the sound-proof cover can block most of the sound noise generated by the motor when the motor works and the vibration;

2. the external wind power is large, and particularly when the ventilator is arranged on a roof which is easy to sound such as a factory iron sheet tile and the like, the noise generated by the vibration of the ventilator is greatly reduced by the elastic cushion;

3. when the motor stops working and external wind power is large, the gravity type check valve can effectively prevent the impeller from reversing due to backward flow of the wind power, prevent the impeller from rotating clockwise due to large torque required when the fan is started next time, and avoid damage caused by overlarge current when the motor is started.

Drawings

Fig. 1 is a schematic overall structure diagram of an embodiment of the present application.

Fig. 2 is a partial cross-sectional view of an embodiment of the present application.

Fig. 3 is a partially enlarged schematic view of a portion a in fig. 2.

Reference numerals: 1. an air duct; 2. a motor; 3. a base; 4. an impeller; 5. a hood; 6. a sound-proof housing; 7. a shock absorbing sheet; 8. a telescopic support rod; 9. a supporting seat; 10. an elastic member; 11. a stopper; 12. a baffle plate; 13. a baffle; 14. a shock pad; 15. a pit; 16. a shock-absorbing layer; 17. an elastic pad.

Detailed Description

The present application is described in further detail below with reference to figures 1-3.

The embodiment of the application discloses energy-conserving antidetonation roof ventilator. Referring to fig. 1 and 2, the energy-saving and shock-resistant roof ventilator comprises an air duct 1, a motor 2, a base 3, an impeller 4 and an air cap 5 which is in threaded connection with an air outlet end of the air duct 1, wherein a sound-proof cover 6 is fixedly connected in the air duct 1, and the air duct 1 and the sound-proof cover 6 are fixedly connected through four connecting rods in the embodiment of the application; the inner wall of the sound-proof shield 6 is provided with a plurality of pits 15, the motor 2 is arranged in the sound-proof shield 6, the side of the motor 2 close to the air inlet of the air duct 1 is fixedly connected with a plurality of shock-absorbing sheets 7, the shock-absorbing sheets 7 can be EVA sheets, ACF sheets and PU sheets, and the shock-absorbing sheets 7 in the embodiment of the application are EVA sheets; the inner peripheral wall of the sound-proof housing 6 is fixedly connected with a plurality of shock-absorbing pads 14, the shock-absorbing pads 14 are just abutted to the shell of the motor 2, the sides of the shock-absorbing pads 14, which are close to the motor 2, are arranged into arc shapes, and the arc radians of the shock-absorbing pads 14 are consistent with the radians of the outer surface of the motor 2; the output end of the motor 2 penetrates through the sound-proof housing 6 and is coaxially connected with an impeller 4 positioned outside the sound-proof housing 6, the inner wall of the sound-proof housing 6 close to the air inlet side of the air duct 1 is fixedly connected with a plurality of distributed elastic supporting devices, and one end, far away from the inner wall of the sound-proof housing 6, of each elastic supporting device is connected with a shock-absorbing sheet 7.

Referring to fig. 3, the elastic supporting device includes a telescopic supporting rod 8 and a supporting seat 9 fixedly connected to the inner wall of the soundproof housing 6, an elastic member 10 is sleeved outside the telescopic supporting rod 8, and two ends of the telescopic supporting rod 8 are respectively hinged to the supporting seat 9 and the casing of the motor 2.

When the motor 2 works to generate vibration, the shock absorbing sheet 7 can counteract part of the vibration, and simultaneously the telescopic support rod 8 and the elastic part 10 are both telescopic with a small amplitude, so that a shock absorbing effect is achieved, and the double shock absorption of the shock absorbing sheet 7 and the elastic support device can greatly reduce the vibration amplitude generated by the motor 2 and reduce the noise generated by the vibration; the sound waves in the sound-proof housing 6 can be rebounded by the plurality of concave pits 15 arranged in the sound-proof housing 6, so that the sound waves are partially offset in the rebounding process, the noise is reduced, and in addition, the sound-proof effect of the sound-proof housing 6 per se weakens the noise generated in the sound-proof housing 6 when the noise is transmitted to the outside by a large margin.

Referring to fig. 2, for avoiding motor 2 stop work, in the external wind pours into the room backward, the rigid coupling of dryer 1 air inlet department has dog 11 and articulates there is separation blade 12, in the embodiment of this application, dog 11 sets up in the double-phase offside department of dryer 1 air intake inner wall, separation blade 12 is provided with two, and separation blade 12 is the aluminium alloy piece that the quality is lighter, two separation blade 12 articulated shafts set up along the central line at dryer 1 air intake and with dog 11 quadrature department, and when the ventilation blower stop work, separation blade 12 offsets to with dog 11 because of gravity is automatic closed.

When the motor 2 stops working, the baffle plate 12 cannot be influenced by wind power from the air inlet of the air duct 1 to the air outlet of the air duct 1, so that the baffle plate 12 is closed to be abutted against the stop block 11 due to gravity, the inlet of the ventilator is sealed, the outside is prevented from forming through-flow with the indoor, the impeller 4 is prevented from being influenced by the outside wind, the outside wind flows backward from the ventilator, the impeller 4 rotates reversely, the motor 2 needs larger torque when the fan is started next time, the starting current is too large to cause damage, and meanwhile, the outside cold and hot air is prevented from entering the indoor to cause the indoor loud object to be blown by the wind power to generate noise; when the motor 2 works, the impeller 4 rotates to generate wind power from the air inlet of the air duct 1 to the air outlet of the air duct 1, so that the baffle plate 12 is blown to be in a vertical state, the ventilator is in a passage state, and indoor air can be smoothly pumped out to the outside.

Referring to fig. 2, a flow guide plate 13 is fixedly connected to the end of the sound-proof housing 6 away from the impeller 4, the flow guide plate 13 is in a cylindrical shape gradually increasing along the direction from the end close to the impeller 4 to the end close to the fan housing, and the outer wall of the flow guide plate is in a transitional arc shape; the soundproof cover 6 is provided in a funnel shape near the impeller 4 end, and the tip end is located near the impeller 4 end.

When impeller 4 rotates and makes the air flow, the guide plate 13 and the sound-proof housing 6 are hopper-shaped and have all played the water conservancy diversion effect, make indoor air can flow to the export from the ventilation blower entry smoothly, play the effect that reduces 2 consumptions of motor, also reduce wind simultaneously and make an uproar.

Referring to fig. 2, the joint of the base 3 and the roof is fixedly connected with a damping layer 16, and the bolts at the joint of the base 3 and the roof and the bolts at the joint of the hood 5 and the wind duct 1 are all sleeved with an elastic pad 17, in this embodiment, the damping layer 16 is a silica gel layer, and the elastic pad 17 is a silica gel pad.

When the motor 2 is damped, the vibration with lower frequency is led out through the sound-proof cover 6 and is influenced by factors such as external wind power, the vibration damping layer 16 and the elastic cushion 17 can greatly reduce the vibration amplitude of the ventilator, and particularly, when the ventilator is arranged on a roof which is easy to generate noise such as an iron sheet tile, the noise can be greatly reduced.

The implementation principle of the energy-saving and shock-resistant roof ventilator provided by the embodiment of the application is as follows: the motor 2 is started, the baffle plate 12 is blown away by airflow generated by the impeller 4 to be in contact with the baffle block 11, so that the baffle plate 12 is in a vertical state, the airflow is guided to the guide plate 13 from the inlet of the air duct 1 through the funnel-shaped end of the sound-proof shield 6 and then guided to the outlet of the air duct 1 through the guide plate 13, and the wind noise during airflow circulation is reduced; the vibration generated by the operation of the motor 2 is reduced by the vibration-absorbing sheet 7 and the elastic supporting device, meanwhile, the vibration-absorbing pad 14 on the inner peripheral wall of the sound-proof cover 6 not only plays a certain role in supporting the motor 2 in the horizontal direction, but also reduces the vibration, the noise rebounds from the concave pit 15 on the inner wall of the sound-proof cover 6, so that the noise is counteracted, and the noise transmitted out of the sound-proof cover 6 is greatly reduced by multiple vibration absorption and noise reduction; the motor 2 is closed, and the baffle plate 12 is turned over to the position abutting against the stop block 11 due to the action of gravity, so that the indoor and outdoor air flows are prevented from being the same.

The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.

Claims

1. The utility model provides an energy-conserving antidetonation roof fan, includes dryer (1), motor (2), base (3), impeller (4) and threaded connection in hood (5) of dryer (1) air outlet end, its characterized in that: the utility model discloses a wind tunnel, including dryer (1), motor (2), sound-proof housing (6) and motor (6), the rigid coupling has sound-proof housing (6) in dryer (1), motor (2) set up in sound-proof housing (6), motor (2) are close to dryer (1) air intake side rigid coupling has a plurality of shock absorber pieces (7), motor (2) output run through sound-proof housing (6) and with be located outside sound-proof housing (6) impeller (4) coaxial coupling, sound-proof housing (6) are close to the inner wall rigid coupling of dryer (1) air inlet side has a plurality of resilient mounting means, resilient mounting means keeps away from the one end of sound-proof housing (6) inner wall with shock absorber piece (7) are connected.

2. An energy saving and earthquake resistant rooftop ventilator as recited in claim 1, further comprising: elastic support device is in including flexible bracing piece (8) and rigid coupling supporting seat (9) on sound-proof housing (6) inner wall, just flexible bracing piece (8) overcoat is equipped with elastic component (10), flexible bracing piece (8) both ends respectively with supporting seat (9) with motor (2) casing is articulated.

3. An energy saving and earthquake resistant rooftop ventilator as recited in claim 1, further comprising: air duct (1) air inlet department rigid coupling has dog (11) and articulated have separation blade (12), and when the ventilation blower stop work, separation blade (12) because of no longer receive by air duct (1) air intake extremely the wind-force of air duct (1) air outlet leads to separation blade (12) receive the automatic closure of gravity influence extremely with dog (11) offset.

4. An energy saving and earthquake resistant rooftop ventilator as recited in claim 1, further comprising: keep away from sound-proof housing (6) impeller (4) end rigid coupling has guide plate (13), sound-proof housing (6) are close to impeller (4) end sets up to leaking hopper-shaped, and the most advanced position is close to impeller (4) end.

5. An energy saving and earthquake resistant rooftop ventilator as recited in claim 1, further comprising: a plurality of shock pads (14) are fixedly connected to the inner peripheral wall of the sound-proof housing (6), and the shock pads (14) just abut against the shell of the motor (2).

6. An energy saving and earthquake resistant rooftop ventilator as recited in claim 5, wherein: the shock pad (14) is close to the side of the motor (2) and is arranged to be arc-shaped, and the arc radian of the shock pad (14) is consistent with that of the outer surface of the motor (2).

7. An energy saving and earthquake resistant rooftop ventilator as recited in claim 1, further comprising: a plurality of concave pits (15) are formed in the inner wall of the sound-proof cover (6).

8. An energy saving and earthquake resistant rooftop ventilator as recited in claim 1, further comprising: the base (3) is fixedly connected with the roof and is provided with a damping layer (16), and the bolts at the joint of the base (3) and the roof and the bolts at the joint of the air cap (5) and the air duct (1) are all sleeved with elastic pads (17).