CN113464468A - Small-size centrifugal fan of low noise type with self-cleaning structure - Google Patents
Small-size centrifugal fan of low noise type with self-cleaning structure Download PDFInfo
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- CN113464468A CN113464468A CN202110708899.2A CN202110708899A CN113464468A CN 113464468 A CN113464468 A CN 113464468A CN 202110708899 A CN202110708899 A CN 202110708899A CN 113464468 A CN113464468 A CN 113464468A
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- air
- self
- centrifugal fan
- volute
- wall
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- 238000004140 cleaning Methods 0.000 title claims abstract description 23
- 238000001816 cooling Methods 0.000 claims abstract description 23
- 239000000428 dust Substances 0.000 claims abstract description 20
- 239000000498 cooling water Substances 0.000 claims abstract description 14
- 230000000694 effects Effects 0.000 claims abstract description 10
- 239000012535 impurity Substances 0.000 claims abstract description 8
- 238000001914 filtration Methods 0.000 claims abstract description 4
- 230000009467 reduction Effects 0.000 claims description 28
- 239000000110 cooling liquid Substances 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 238000001802 infusion Methods 0.000 claims description 5
- 230000009471 action Effects 0.000 description 6
- 238000000034 method Methods 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 239000002826 coolant Substances 0.000 description 3
- 230000009286 beneficial effect Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
Images
Classifications
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/08—Units comprising pumps and their driving means the working fluid being air, e.g. for ventilation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D17/00—Radial-flow pumps, e.g. centrifugal pumps; Helico-centrifugal pumps
- F04D17/08—Centrifugal pumps
- F04D17/16—Centrifugal pumps for displacing without appreciable compression
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/40—Casings; Connections of working fluid
- F04D29/42—Casings; Connections of working fluid for radial or helico-centrifugal pumps
- F04D29/44—Fluid-guiding means, e.g. diffusers
- F04D29/441—Fluid-guiding means, e.g. diffusers especially adapted for elastic fluid pumps
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/5806—Cooling the drive system
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/663—Sound attenuation
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/66—Combating cavitation, whirls, noise, vibration or the like; Balancing
- F04D29/661—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps
- F04D29/668—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps damping or preventing mechanical vibrations
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F04—POSITIVE - DISPLACEMENT MACHINES FOR LIQUIDS; PUMPS FOR LIQUIDS OR ELASTIC FLUIDS
- F04D—NON-POSITIVE-DISPLACEMENT PUMPS
- F04D29/00—Details, component parts, or accessories
- F04D29/70—Suction grids; Strainers; Dust separation; Cleaning
- F04D29/701—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps
- F04D29/703—Suction grids; Strainers; Dust separation; Cleaning especially adapted for elastic fluid pumps specially for fans, e.g. fan guards
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention discloses a low-noise small centrifugal fan with a self-cleaning structure, which comprises a volute, a fan body and a fan blade, wherein the volute is used as a main shell of the device and is placed on the ground; the air collecting cover is movably arranged on the inner side of the air inlet, and a dustproof net is fixedly arranged on the inner side of the air collecting cover through bolts and is used for filtering dust, impurities and the like in the air; the air outlet is arranged on the outer side of the volute; the shaft lever is fixedly arranged on the side wall of the volute; the piston cylinder is fixedly arranged on the side wall of the volute; and the cooling water tank is fixedly arranged on the outer side above the air outlet. This small-size centrifugal fan of low noise type with self-cleaning structure can carry out the high efficiency through the gasbag of making an uproar that falls of surperficial unevenness and fall and make an uproar, and can utilize wind-force effect to carry out automatic clearance to the dust screen after blockking up, improves the air inlet rate, can carry out high-efficient cooling to the motor in the use simultaneously, ensures that the device can function for a long time, and the practicality is strong.
Description
Technical Field
The invention relates to the technical field of centrifugal fans, in particular to a low-noise small centrifugal fan with a self-cleaning structure.
Background
The centrifugal fan is a machine which can increase the gas pressure and discharge gas by means of input mechanical energy, and is widely applied to ventilation, dust exhaust and cooling systems of factories, mines, tunnels, ships, buildings and the like, but the existing centrifugal fan still has some defects.
The utility model discloses a centrifugal fan's protection casing device for CN111997941A, it is through installing biax motor, the pneumatic cylinder, clean the pendulum rod, the runner, first bevel gear, second bevel gear isotructure, wherein biax motor drives first gear revolve, after the inside of protection casing automatic assembly air inlet cylinder, the output shaft extension of pneumatic cylinder, first bevel gear and second bevel gear meshing transmission, then realize the runner and rotate, finally drive and clean the pendulum rod horizontal hunting, automatically clean the dust on the filter screen, but it is in the use, clean the pendulum rod and can carry out certain degree to the air intake and block, influence the normal air inlet of fan, need install solitary driving source simultaneously and provide clean power, and it is inconvenient in the use effectively to fall the noise, the noise is great when leading to the fan to use, there is certain use defect.
We have proposed a small centrifugal fan of low noise type provided with a self-cleaning structure so as to solve the problems set forth above.
Disclosure of Invention
The invention aims to provide a low-noise type small centrifugal fan with a self-cleaning structure, and aims to solve the problems that the small centrifugal fan in the prior market cannot automatically clean a filter screen structure and has high use noise.
In order to achieve the purpose, the invention provides the following technical scheme: a small-size centrifugal fan of low noise type with self-cleaning structure includes:
the volute is used as a device main shell and placed on the ground, a motor is fixedly mounted on the side wall of the volute, an impeller is fixedly mounted at the output end of the motor, an air inlet is formed in the side wall of the volute, and meanwhile a sliding groove is formed in the inner wall of the air inlet;
the air collecting cover is movably arranged on the inner side of the air inlet, and a dustproof net is fixedly arranged on the inner side of the air collecting cover through bolts and is used for filtering dust, impurities and the like in the air;
the air outlet is arranged on the outer side of the volute;
the shaft lever is fixedly arranged on the side wall of the volute, and the outer side shaft of the shaft lever is connected with a movable column for pushing the wind collecting cover;
the piston cylinder is fixedly arranged on the side wall of the volute, a piston block is arranged on the inner side of the piston cylinder, and a rack is fixedly connected to the outer side of the piston block;
and the cooling water tank is fixedly arranged on the outer side above the air outlet and used for storing cooling liquid, and a liquid conveying pipe and a cooling pipe are connected between the cooling water tank and the piston cylinder and used for conveying the cooling liquid.
Preferably, the wind-collecting cover is funnel-shaped structure, just the outer wall of wind-collecting cover is the equidistance and is provided with the slider, and slider and spout constitute extending structure, simultaneously be connected with the reset spring who provides elasticity that resets between the lateral wall of slider and the inner wall of spout.
Through adopting above-mentioned technical scheme for dust screen outside dust impurity adheres to too much and when causing the jam, can improve the windage that the dust screen received, and then makes the dust screen drive the wind-collecting cover and carry out elastic expansion, and then moves to the inboard of spiral case along the air intake, thereby the position of automatic change wind-collecting cover.
Preferably, the inner wall of the air outlet is uniformly bonded with the noise reduction air bag, and the surface of the noise reduction air bag is provided with a spherical arc-shaped bulge.
Through adopting above-mentioned technical scheme for the gasbag of making an uproar falls can carry out the bradyseism to the casing of air vent department, avoids the casing to take place vibrations and produce the noise under high velocity air blows, and the gasbag of making an uproar falls in surface unevenness can carry out multidirectional reflection to sound simultaneously, thereby has further improved the noise reduction effect.
Preferably, the inner side wall shaft of the air outlet is connected with a wind wheel, the inner wall of the air outlet is provided with an inclined air deflector, and the air deflector corresponds to the wind wheel.
By adopting the technical scheme, the air deflector can guide partial air flow in the air outlet, so that the air flow blows the air deflector at an accelerated speed, and the air deflector automatically rotates under the action of wind power.
Preferably, the noise reduction air bag is attached to the side wall of the wind wheel, a hidden groove is formed in the outer wall of the shaft rod, an elastic air bag is bonded inside the hidden groove, and an air delivery pipe is connected between the elastic air bag and the noise reduction air bag.
By adopting the technical scheme, the protruding part of the noise reduction air bag can be intermittently extruded in the rotating process of the wind wheel, and then partial gas in the noise reduction air bag enters the elastic air bag through the gas conveying pipe, so that the elastic air bag is elastically contracted and expanded in a reciprocating manner.
Preferably, the inner wall of the movable column is provided with a guide block, the guide block and the hidden groove form a sliding structure, and the side wall of the guide block is bonded with the elastic air bag.
Through adopting above-mentioned technical scheme for when elasticity gasbag takes place to expand or contract, can promote the guide block and slide, adjust along the camera obscura, thereby drive the activity post and carry out reciprocating rotation.
Preferably, the end face of the movable column facing the wind-collecting cover is of an inclined plane structure, and the position of the movable column corresponds to that of the wind-collecting cover.
Through adopting above-mentioned technical scheme for the air-collecting cover receives the wind-force effect after blockking up and slides along the air intake, makes the air-collecting cover can contact with the activity post, thereby makes activity post promotion air-collecting cover shake, and then shakes off dust, impurity etc. that adhere to in the dust screen outside automatically, avoids causing the dust screen to block up, realizes self-cleaning's effect.
Preferably, the outer side key of the movable column is connected with a sector gear, the sector gear is meshed with a rack, and the rack and the piston cylinder form a telescopic structure.
Through adopting above-mentioned technical scheme for the reciprocal rotatory in-process of activity post can drive fan-shaped gear and rack and carry out the meshing effect, thereby makes the rack reciprocate flexible along the piston cylinder, and then realizes the control to the piston piece.
Preferably, the infusion tube and the cooling tube are both of a one-way circulation structure, and the cooling tube is spirally wound on the outer side of the motor.
Through adopting above-mentioned technical scheme for can carry out automatic the carrying to the coolant liquid through piston cylinder, transfer line and cooling tube among the piston piece reciprocating motion process, make the inside coolant liquid of cooling tube can carry out the automatically cooling to the motor, thereby ensure that this small-size centrifugal fan can operate for a long time.
Compared with the prior art, the invention has the beneficial effects that: the low-noise small centrifugal fan with the self-cleaning structure can efficiently reduce noise through the noise reduction air bag with the uneven surface, automatically clean the blocked dust screen by utilizing the action of wind power, improve the air inlet rate, efficiently cool the motor in the use process, ensure that the device can operate for a long time and has strong practicability;
1. the noise reduction air bag is arranged, so that the air outlet can be efficiently cushioned, the noise generated by the vibration of the air outlet under the action of high-speed wind power is avoided, meanwhile, the uneven structure on the surface of the noise reduction air bag can reflect sound, further noise reduction is realized, and the noise of the device in use is effectively reduced;
2. the wind collector is provided with the wind collecting cover, the wind wheel and the movable column, the wind wheel can automatically rotate in the using process of the device, and then the noise reduction air bags are intermittently extruded, so that part of gas in the noise reduction air bags intermittently enters and exits the elastic air bags, and further the movable column is pushed to continuously rotate in a reciprocating manner;
3. be provided with movable post and piston cylinder, through the reciprocating rotation of movable post, can make fan-shaped gear and rack mesh and be connected to make rack pulling piston piece carry out reciprocating motion in piston cylinder inboard, make piston cylinder can carry out the circulating transport to the inside cooling water of coolant tank through transfer line and cooling tube, make the cooling tube can last the cooling to the motor, be favorable to the device to carry out long-term work.
Drawings
FIG. 1 is a schematic front view of the present invention;
FIG. 2 is a side cross-sectional structural schematic view of the present invention;
FIG. 3 is a schematic view of a noise-reducing airbag mounting structure according to the present invention;
FIG. 4 is a schematic sectional view of the exhaust outlet of the present invention;
FIG. 5 is a schematic view of the mounting structure of the elastic airbag of the present invention;
FIG. 6 is a schematic perspective view of a movable column according to the present invention;
FIG. 7 is an enlarged view of the structure at A in FIG. 2 according to the present invention;
fig. 8 is a main sectional structural schematic diagram of the piston cylinder of the invention.
In the figure: 1. a volute; 2. a motor; 3. an impeller; 4. an air inlet; 5. a chute; 6. a wind collecting cover; 601. a dust screen; 602. a slider; 603. a return spring; 7. an air outlet; 8. a noise reduction air bag; 9. an air deflector; 10. a wind wheel; 11. a shaft lever; 1101. a hidden groove; 1102. an elastic air bag; 1103. a gas delivery pipe; 12. a movable post; 1201. a guide block; 1202. a sector gear; 13. a piston cylinder; 14. a piston block; 15. a rack; 16. a cooling water tank; 17. a transfusion tube; 18. and (7) cooling the tube.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1-8, the present invention provides a technical solution: a low-noise small centrifugal fan with a self-cleaning structure comprises a volute 1, a motor 2, an impeller 3, an air inlet 4, a sliding groove 5, an air collecting cover 6, a dustproof net 601, a sliding block 602, a return spring 603, an air outlet 7, a noise reduction air bag 8, an air deflector 9, a wind wheel 10, a shaft rod 11, a hidden groove 1101, an elastic air bag 1102, an air pipe 1103, a movable column 12, a guide block 1201, a sector gear 1202, a piston cylinder 13, a piston block 14, a rack 15, a cooling water tank 16, an infusion pipe 17 and a cooling pipe 18.
The spiral case 1 is placed on the ground as a device main shell, the side wall of the spiral case 1 is fixedly provided with a motor 2, the output end of the motor 2 is fixedly provided with an impeller 3, the side wall of the spiral case 1 is provided with an air inlet 4, and the inner wall of the air inlet 4 is provided with a sliding groove 5;
the air collecting cover 6 is movably arranged on the inner side of the air inlet 4, and a dustproof net 601 is fixedly arranged on the inner side of the air collecting cover 6 through bolts and used for filtering dust, impurities and the like in air;
the air outlet 7 is arranged on the outer side of the volute 1;
the shaft lever 11 is fixedly arranged on the side wall of the volute 1, and the outer side of the shaft lever 11 is connected with a movable column 12 through a shaft and used for pushing the wind collecting cover 6;
the piston cylinder 13 is fixedly arranged on the side wall of the volute 1, a piston block 14 is arranged on the inner side of the piston cylinder 13, and a rack 15 is fixedly connected to the outer side of the piston block 14;
and a cooling water tank 16 fixedly installed at the upper outer side of the air outlet 7 for storing the cooling liquid, wherein a liquid conveying pipe 17 and a cooling pipe 18 are connected between the cooling water tank 16 and the piston cylinder 13 for conveying the cooling liquid.
The wind-collecting cover 6 is of a funnel-shaped structure, the outer wall of the wind-collecting cover 6 is provided with a sliding block 602 at an equal angle, the sliding block 602 and the chute 5 form a telescopic structure, and a return spring 603 for providing return elasticity is connected between the side wall of the sliding block 602 and the inner wall of the chute 5.
The inner wall of the air outlet 7 is uniformly bonded with a noise reduction air bag 8, and the surface of the noise reduction air bag 8 is provided with a spherical arc-shaped bulge.
The inner side wall shaft of the air outlet 7 is connected with a wind wheel 10, the inner wall of the air outlet 7 is provided with an inclined air deflector 9, and the position of the air deflector 9 corresponds to that of the wind wheel 10.
The noise reduction air bag 8 is attached to the side wall of the wind wheel 10, the outer wall of the shaft rod 11 is provided with a hidden groove 1101, an elastic air bag 1102 is bonded inside the hidden groove 1101, and an air pipe 1103 is connected between the elastic air bag 1102 and the noise reduction air bag 8.
The inner wall of the movable column 12 is provided with a guide block 1201, the guide block 1201 and the dark groove 1101 form a sliding structure, and the side wall of the guide block 1201 and the elastic air bag 1102 are adhered to each other.
As shown in fig. 1-7, the motor 2 is started to drive the impeller 3 to rotate, so as to perform gas transportation, at this time, the noise reduction airbag 8 can effectively damp the casing at the air outlet 7, so as to prevent the casing at the air outlet 7 from vibrating under the action of high-speed airflow to generate noise, meanwhile, the rugged surface of the noise reduction airbag 8 can reflect sound, so as to achieve further noise reduction, at the same time, the air deflector 9 can guide partial airflow at the air outlet 7, so that partial airflow blows to the wind wheel 10 at high speed, so as to enable the wind wheel 10 to rotate automatically, at this time, the wind wheel 10 can intermittently extrude the bulge of the noise reduction airbag 8, so that partial air inside the noise reduction airbag 8 can enter and exit the elastic airbag 1102 in a reciprocating manner, so that the elastic airbag 1102 performs reciprocating expansion and contraction, at this time, the elastic airbag 1102 can push the guide block 1201 to slide along the blind slot 1101 in a reciprocating manner, at this moment, the movable column 12 can rotate in a reciprocating manner, so that the movable column 12 pushes the air collecting cover 6 to shake rapidly, dust, impurities and the like attached to the outer side of the dustproof net 601 are shaken off, automatic cleaning is achieved, and the air inlet rate of the device is effectively improved.
The end surface of the movable column 12 facing the wind-collecting cover 6 is an inclined surface structure, and the position of the movable column 12 corresponds to the position of the wind-collecting cover 6.
The outer side key of the movable column 12 is connected with a sector gear 1202, the sector gear 1202 is meshed with a rack 15, and the rack 15 and the piston cylinder 13 form a telescopic structure.
The infusion tube 17 and the cooling tube 18 are both of a one-way circulation structure, and the cooling tube 18 is spirally wound outside the motor 2.
As shown in fig. 1-2, 5 and 7-8, with the reciprocating rotation of the movable column 12, the sector gear 1202 can be engaged with the rack 15, so as to drive the rack 15 to pull the piston block 14 to slide back and forth inside the piston cylinder 13, and at this time, the piston cylinder 13 can circulate the cooling water inside the cooling water tank 16 through the infusion tube 17 and the cooling tube 18, so that the cooling tube 18 can continuously and efficiently dissipate heat of the motor 2, which is beneficial to the continuous operation of the device.
The working principle is as follows: when the low-noise small centrifugal fan with the self-cleaning structure is used, firstly, as shown in fig. 1-8, the motor 2 is started to enable the centrifugal fan to work, the noise reduction air bag 8 can efficiently reduce noise at the air outlet 7, meanwhile, the wind wheel 10 can automatically rotate under the action of wind power, the wind wheel 10 intermittently extrudes the noise reduction air bag 8 to drive the movable column 12 to rotate in a reciprocating manner, at the moment, the piston cylinder 13 can circularly convey cooling water in the cooling water tank 16 through the liquid conveying pipe 17 and the cooling pipe 18 to enable the cooling pipe 18 to continuously and efficiently cool the motor 2, continuous operation of the device is facilitated, when the dust screen 601 is blocked, the wind collecting cover 6 can be close to the movable column 12 under the action of negative pressure, the movable column 12 in the rotating process can push the wind collecting cover 6 to automatically shake, and accordingly dust attached to the surface of the dust screen 601, Impurities and the like shake off, automatic cleaning is realized, and the air inlet rate of the device is effectively improved, so that a series of work is completed.
Those not described in detail in this specification are within the skill of the art.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that various changes in the embodiments and/or modifications of the invention can be made, and equivalents and modifications of some features of the invention can be made without departing from the spirit and scope of the invention.
Claims (9)
1. The utility model provides a small-size centrifugal fan of low noise type with self-cleaning structure which characterized in that includes:
the volute is used as a device main shell and placed on the ground, a motor is fixedly mounted on the side wall of the volute, an impeller is fixedly mounted at the output end of the motor, an air inlet is formed in the side wall of the volute, and meanwhile a sliding groove is formed in the inner wall of the air inlet;
the air collecting cover is movably arranged on the inner side of the air inlet, and a dustproof net is fixedly arranged on the inner side of the air collecting cover through bolts and is used for filtering dust, impurities and the like in the air;
the air outlet is arranged on the outer side of the volute;
the shaft lever is fixedly arranged on the side wall of the volute, and the outer side shaft of the shaft lever is connected with a movable column for pushing the wind collecting cover;
the piston cylinder is fixedly arranged on the side wall of the volute, a piston block is arranged on the inner side of the piston cylinder, and a rack is fixedly connected to the outer side of the piston block;
and the cooling water tank is fixedly arranged on the outer side above the air outlet and used for storing cooling liquid, and a liquid conveying pipe and a cooling pipe are connected between the cooling water tank and the piston cylinder and used for conveying the cooling liquid.
2. A small centrifugal fan of low noise type provided with a self-cleaning structure according to claim 1, wherein: the wind-collecting cover is funnel-shaped structure, just the outer wall of wind-collecting cover is the equidistance and is provided with the slider, and slider and spout constitute extending structure, simultaneously be connected with the reset spring who provides elasticity that resets between the lateral wall of slider and the inner wall of spout.
3. A small centrifugal fan of low noise type provided with a self-cleaning structure according to claim 1, wherein: the inner wall of air exit bonds evenly and has the gasbag of making an uproar of falling, just the surface of the gasbag of making an uproar of falling is provided with the spherical arc arch.
4. A small centrifugal fan of low noise type provided with a self-cleaning structure according to claim 1, wherein: the wind wheel is connected with the inner side wall shaft of the air outlet, the inclined air deflector is arranged on the inner wall of the air outlet, and the air deflector corresponds to the wind wheel.
5. A small centrifugal fan of low noise type provided with a self-cleaning structure according to claim 3, wherein: the noise reduction air bag is attached to the side wall of the wind wheel, the outer wall of the shaft rod is provided with a hidden groove, an elastic air bag is bonded inside the hidden groove, and a gas pipe is connected between the elastic air bag and the noise reduction air bag.
6. A low-noise type small centrifugal fan provided with a self-cleaning structure according to claim 5, wherein: the inner wall of the movable column is provided with a guide block, the guide block and the hidden groove form a sliding structure, and the side wall of the guide block is mutually bonded with the elastic air bag.
7. A small centrifugal fan of low noise type provided with a self-cleaning structure according to claim 1, wherein: the end face, facing the wind collecting cover, of the movable column is of an inclined plane structure, and the position of the movable column corresponds to that of the wind collecting cover.
8. A small centrifugal fan of low noise type provided with a self-cleaning structure according to claim 1, wherein: the outer side key-type of activity post has sector gear, just sector gear and rack meshing are connected, and the rack constitutes extending structure with the piston cylinder.
9. A small centrifugal fan of low noise type provided with a self-cleaning structure according to claim 1, wherein: the infusion tube and the cooling tube are both of a one-way circulation structure, and the cooling tube is spirally wound on the outer side of the motor.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110708899.2A CN113464468B (en) | 2021-06-25 | 2021-06-25 | Low-noise type small centrifugal fan with self-cleaning structure |
| PCT/CN2021/119814 WO2022267250A1 (en) | 2021-06-25 | 2021-09-23 | Low-noise small centrifugal fan having self-cleaning structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110708899.2A CN113464468B (en) | 2021-06-25 | 2021-06-25 | Low-noise type small centrifugal fan with self-cleaning structure |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113464468A true CN113464468A (en) | 2021-10-01 |
| CN113464468B CN113464468B (en) | 2024-05-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110708899.2A Active CN113464468B (en) | 2021-06-25 | 2021-06-25 | Low-noise type small centrifugal fan with self-cleaning structure |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN113464468B (en) |
| WO (1) | WO2022267250A1 (en) |
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| CN114412843A (en) * | 2022-02-19 | 2022-04-29 | 广东康美风通风设备有限公司 | Box type fan |
| CN117145814A (en) * | 2023-10-20 | 2023-12-01 | 河北环安环保科技有限公司 | Turbine fan convenient for cleaning internal dust |
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| CN116679144B (en) * | 2023-06-06 | 2023-12-19 | 深圳市创容新能源有限公司 | Capacitor test equipment and test method thereof |
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| CN116419088B (en) * | 2023-06-12 | 2023-09-01 | 深圳市开拓进取科技有限公司 | Dustproof protection device of router |
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Also Published As
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| CN113464468B (en) | 2024-05-24 |
| WO2022267250A1 (en) | 2022-12-29 |
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