CN113464468B - Low-noise type small centrifugal fan with self-cleaning structure - Google Patents
Low-noise type small centrifugal fan with self-cleaning structure Download PDFInfo
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- CN113464468B CN113464468B CN202110708899.2A CN202110708899A CN113464468B CN 113464468 B CN113464468 B CN 113464468B CN 202110708899 A CN202110708899 A CN 202110708899A CN 113464468 B CN113464468 B CN 113464468B
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- Prior art keywords
- air
- collecting cover
- volute
- side wall
- air bag
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- 238000004140 cleaning Methods 0.000 title claims abstract description 18
- 239000000428 dust Substances 0.000 claims abstract description 25
- 238000001816 cooling Methods 0.000 claims abstract description 23
- 239000000498 cooling water Substances 0.000 claims abstract description 15
- 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 33
- 239000000110 cooling liquid Substances 0.000 claims description 6
- 238000001802 infusion Methods 0.000 claims description 6
- 239000007788 liquid Substances 0.000 claims description 6
- 230000000694 effects Effects 0.000 abstract description 4
- 238000000034 method Methods 0.000 description 7
- 230000009471 action Effects 0.000 description 6
- 230000008569 process Effects 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 239000002826 coolant Substances 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 1
- 235000017491 Bambusa tulda Nutrition 0.000 description 1
- 241001330002 Bambuseae Species 0.000 description 1
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 1
- 239000011425 bamboo Substances 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 230000000903 blocking effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000013016 damping Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000002349 favourable effect Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000009423 ventilation Methods 0.000 description 1
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
-
- 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
-
- 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
-
- 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
-
- 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
-
- 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
Landscapes
- 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 type small centrifugal fan with a self-cleaning structure, which comprises a volute, wherein the volute is used as a device main shell and is placed on the ground, and a motor is fixedly arranged on the side wall of the volute; the air collecting cover is movably arranged at the inner side of the air inlet, and a dust screen is fixedly arranged on an inner side bolt of the air collecting cover and used for filtering dust, impurities and the like in the air; the exhaust outlet is arranged at 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 from clearance structure can fall the gasbag of making an uproar through the surface is uneven and make an uproar and carry out high-efficient, and can utilize the wind-force effect to clear up automatically the dust screen after the jam, improves the air inlet rate, can carry out high-efficient cooling to the motor in the use simultaneously, ensures that the device can carry out long-time operation, and the practicality is strong.
Description
Technical Field
The invention relates to the technical field of centrifugal fans, in particular to a low-noise type small-sized centrifugal fan with a self-cleaning structure.
Background
Centrifugal fans are machines that rely on input mechanical energy to increase gas pressure and discharge gas and are widely used in ventilation, dust removal and cooling systems for factories, mines, tunnels, ships, buildings, etc., but existing centrifugal fans still have some drawbacks.
The utility model discloses a centrifugal fan's protection casing device, it is through installing biax motor, the pneumatic cylinder, clean pendulum rod, the runner, first bevel gear, second bevel gear isotructure, wherein biax motor drives first gear and rotates, after the inside of an air inlet section of thick bamboo is assembled to the protection casing automatic assembly, the output shaft extension of pneumatic cylinder, first bevel gear and second bevel gear meshing transmission, realize the runner rotation then, finally drive and clean the pendulum rod and control the swing, automatically clean the dust on the filter screen, but its in-process of using, clean the pendulum rod and can carry out the blocking of certain degree to the air intake, influence the normal air inlet of fan, simultaneously need install independent actuating source and provide clean power, and it is inconvenient in the use and carry out effectual noise reduction, the noise is great when leading to the fan to use, there is certain use defect.
We have therefore proposed a low noise, small centrifugal fan provided with a self-cleaning structure in order to solve the problems set out in the foregoing.
Disclosure of Invention
The invention aims to provide a low-noise type small centrifugal fan with a self-cleaning structure, so as to solve the problems that the small centrifugal fan in the market is inconvenient to automatically clean a filter screen structure and has high using noise in the prior art.
In order to achieve the above purpose, the present invention provides the following technical solutions: a low noise type small centrifugal fan provided with a self-cleaning structure, comprising:
The spiral case is placed on the ground as a device main shell, a motor is fixedly installed on the side wall of the spiral case, an impeller is fixedly installed at the output end of the motor, an air inlet is formed in the side wall of the spiral case, and meanwhile, a sliding groove is formed in the inner wall of the air inlet;
the air collecting cover is movably arranged at the inner side of the air inlet, and a dust screen is fixedly arranged on an inner side bolt of the air collecting cover and used for filtering dust, impurities and the like in the air;
The exhaust outlet is arranged at the outer side of the volute;
The shaft rod is fixedly arranged on the side wall of the volute, and the outer shaft of the shaft rod 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;
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 of a funnel-shaped structure, the outer wall of the wind collecting cover is provided with a sliding block at equal angles, the sliding block and the sliding groove form a telescopic structure, and a reset spring for providing reset elasticity is connected between the side wall of the sliding block and the inner wall of the sliding groove.
Through adopting above-mentioned technical scheme for when dust impurity in the dust screen outside adheres to too much and causes the jam, can improve the windage that the dust screen received, and then make the dust screen drive the wind-collecting cover and carry out elasticity flexible, and then follow the air intake and remove to the inboard of spiral case, thereby change the position of wind-collecting cover automatically.
Preferably, the inner wall of the air outlet is uniformly adhered with a 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 can carry out the bradyseism to air exit department casing, avoids the casing to take place to shake and produce the noise under high-speed air current blows, and the surface roughness's the gasbag of making an uproar 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 in position.
By adopting the technical scheme, the air deflector can guide partial air flow in the air outlet, so that the air flow is accelerated to blow the air deflector, 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 adhered to the inside of the hidden groove, and an air 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 part of gas in the noise reduction air bag enters the elastic air bag through the gas pipe, so that the elastic air bag is elastically contracted and expanded in a reciprocating mode.
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 mutually adhered with the elastic air bag.
By adopting the technical scheme, when the elastic air bag expands or contracts, the guide block can be pushed to slide along the hidden groove for adjustment, so that the movable column is driven to rotate in a reciprocating manner.
Preferably, the movable column is in an inclined plane structure towards the end face of the wind collecting cover, and the position of the movable column corresponds to that of the wind collecting cover.
Through adopting above-mentioned technical scheme for the wind-force effect is received to the wind-collecting cover after blockking up and is followed the air intake and slide, makes the wind-collecting cover can contact with the movable column, thereby makes the movable column promote the wind-collecting cover and shakes, and then shakes out the automation such as dust, impurity that the dust screen outside is attached, avoids causing the dust screen to block up, realizes automatically cleaning's effect.
Preferably, the outside 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.
By adopting the technical scheme, in the reciprocating rotation process of the movable column, the sector gear and the rack can be driven to carry out meshing action, so that the rack can reciprocate and stretch along the piston cylinder, and further control of the piston block is realized.
Preferably, the infusion tube and the cooling tube are of unidirectional circulation structures, and the cooling tube is spirally wound on the outer side of the motor.
Through adopting above-mentioned technical scheme for piston piece reciprocating motion in-process can carry out automatic transport through piston cylinder, transfer line and cooling tube to the coolant liquid, make the inside coolant liquid of cooling tube can carry out automatic 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 type small centrifugal fan with the self-cleaning structure can efficiently reduce noise through the noise reduction air bags with uneven surfaces, can automatically clean the blocked dust screen by utilizing the wind force, improves the air inlet rate, can efficiently cool the motor in the use process, ensures that the device can operate for a long time, and has strong practicability;
1. The noise reduction air bag is arranged, the air outlet can be subjected to efficient damping through the noise reduction air bag, noise generated by shaking of the air outlet under the action of high-speed wind force is avoided, meanwhile, the uneven structure on the surface of the noise reduction air bag can reflect the sound, further noise reduction is realized, and the noise of the device in use is effectively reduced;
2. The device comprises a wind collecting cover, a wind wheel and a movable column, wherein the wind wheel can automatically rotate in the using process of the device, and then intermittently extrudes a noise reduction air bag, so that part of air in the noise reduction air bag intermittently enters and exits an elastic air bag, and further pushes the movable column to continuously and reciprocally rotate;
3. Be provided with movable column and piston tube, through the reciprocal rotation of movable column, can make sector gear and rack mesh and be connected to make rack pulling piston piece carry out reciprocating motion in piston tube inboard, make piston tube can carry out the circulation through transfer line and cooling tube to the inside cooling water of cooling water tank, 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 diagram of a front view structure of the present invention;
FIG. 2 is a schematic side cross-sectional view of the present invention;
FIG. 3 is a schematic view of the noise reduction airbag mounting structure of the present invention;
FIG. 4 is a schematic diagram of the main cross-sectional structure of the exhaust port of the present invention;
FIG. 5 is a schematic view of an elastic air bag mounting structure according to the present invention;
FIG. 6 is a schematic perspective view of a movable column according to the present invention;
FIG. 7 is an enlarged schematic view of the structure of FIG. 2A according to the present invention;
Fig. 8 is a schematic diagram of the main sectional structure of the piston cylinder of the present invention.
In the figure: 1. a volute; 2. a motor; 3. an impeller; 4. an air inlet; 5. a chute; 6. a wind collecting hood; 601. a dust screen; 602. a slide block; 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 pipe; 12. a movable column; 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. an infusion tube; 18. and (5) cooling the tube.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Referring to fig. 1-8, the present invention provides a technical solution: a low-noise type small centrifugal fan with a self-cleaning structure comprises a volute 1, a motor 2, an impeller 3, an air inlet 4, a sliding chute 5, a wind collecting cover 6, a dustproof net 601, a sliding block 602, a reset 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 delivery 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, a motor 2 is fixedly installed on the side wall of the spiral case 1, an impeller 3 is fixedly installed at the output end of the motor 2, an air inlet 4 is formed in the side wall of the spiral case 1, and a sliding groove 5 is formed in the inner wall of the air inlet 4;
the wind collecting cover 6 is movably arranged at the inner side of the air inlet 4, and a dust screen 601 is fixedly arranged at the inner side bolt of the wind collecting cover 6 and is used for filtering dust, impurities and the like in the air;
An exhaust outlet 7 arranged outside the volute 1;
the shaft lever 11 is fixedly arranged on the side wall of the volute 1, and the outer shaft of the shaft lever 11 is connected with a movable column 12 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;
The cooling water tank 16 is fixedly arranged on the upper outer side of the air outlet 7 and used for storing cooling liquid, and a liquid delivery pipe 17 and a cooling pipe 18 are connected between the cooling water tank 16 and the piston cylinder 13 and used for delivering the cooling liquid.
The wind collecting cover 6 is of a funnel-shaped structure, the sliding blocks 602 are arranged on the outer wall of the wind collecting cover 6 at equal angles, the sliding blocks 602 and the sliding grooves 5 form a telescopic structure, and meanwhile, a reset spring 603 for providing reset elastic force is connected between the side walls of the sliding blocks 602 and the inner walls of the sliding grooves 5.
The inner wall of the air outlet 7 is uniformly adhered 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 air deflector 9 corresponds to the wind wheel 10 in position.
The noise reduction air bag 8 is attached to the side wall of the wind wheel 10, a hidden groove 1101 is formed in the outer wall of the shaft lever 11, an elastic air bag 1102 is adhered to the inside of 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, and the guide block 1201 and the hidden groove 1101 constitute a sliding structure, and the side wall of the guide block 1201 is adhered to the elastic air bag 1102.
As shown in fig. 1-7, the motor 2 is started to drive the impeller 3 to rotate, so as to carry out gas conveying, at this time, the noise reduction air bag 8 can effectively slow the shell at the air outlet 7, so that the shell at the air outlet 7 can be prevented from vibrating under the action of high-speed air flow to generate noise, meanwhile, the uneven surface of the noise reduction air bag 8 can reflect the sound, further noise reduction work is realized, meanwhile, the air deflector 9 can guide part of air flow at the air outlet 7, so that part of air flow is blown to the air wheel 10 at a high speed, the air wheel 10 automatically rotates, at this time, the air wheel 10 intermittently extrudes the bulge of the noise reduction air bag 8, so that part of air inside the noise reduction air bag 8 reciprocally enters into and exits the elastic air bag 1102, so that the elastic air bag 1102 reciprocally expands and contracts, at this time, the elastic air bag 1102 can push the guide block 1201 to reciprocally slide along the hidden groove 1101, at this time, the movable column 12 can reciprocally rotate, so that the movable column 12 pushes the wind collecting cover 6 to shake rapidly, thereby shaking dust, impurities and the like attached to the outer side of the dust collecting net 601, and the like, further automatic cleaning is realized, and the air inlet rate of the device is effectively improved.
The end face of the movable column 12 facing the wind collecting cover 6 is in an inclined plane structure, and the position of the movable column 12 corresponds to the position of the wind collecting cover 6.
The outside key of the movable column 12 is connected with a sector gear 1202, the sector gear 1202 is meshed with the 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 of a unidirectional circulation structure, and the cooling tube 18 is spirally wound on the outer side of the motor 2.
As shown in fig. 1-2, fig. 5 and fig. 7-8, along with the reciprocating rotation of the movable column 12, the sector gear 1202 and the rack 15 can be meshed and connected, so that the rack 15 is driven to pull the piston block 14 to slide reciprocally on the inner side of the piston cylinder 13, at this time, the piston cylinder 13 can circularly convey cooling water in 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, and continuous operation of the device is facilitated.
Working principle: when the low-noise type small centrifugal fan with the self-cleaning structure is used, firstly, as shown in fig. 1-8, a motor 2 is started to enable the centrifugal fan to work, at the moment, a noise reduction air bag 8 can efficiently reduce noise at an air outlet 7, meanwhile, a wind wheel 10 can automatically rotate under the action of wind force, the wind wheel 10 intermittently extrudes the noise reduction air bag 8 so as to drive a movable column 12 to reciprocally rotate, at the moment, a piston cylinder 13 can circularly convey cooling water in a cooling water tank 16 through a liquid conveying pipe 17 and a cooling pipe 18, the cooling pipe 18 can continuously and efficiently cool the motor 2, continuous operation of the device is facilitated, when a dust screen 601 is blocked, a wind collecting cover 6 can be pushed by the movable column 12 under the action of negative pressure, so that dust, impurities and the like attached to the surface of the dust screen 601 can be shaken off in the rotating process, automatic cleaning is realized, the air inlet rate of the device is effectively improved, and a series of works are completed.
What is not described in detail in this specification is prior art known to those skilled in the art.
Although the present invention has been described with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements and changes may be made without departing from the spirit and principles of the present invention.
Claims (5)
1. A low noise type small-size centrifugal fan with self-cleaning structure, its characterized in that includes:
The spiral case is placed on the ground as a device main shell, a motor is fixedly installed on the side wall of the spiral case, an impeller is fixedly installed at the output end of the motor, an air inlet is formed in the side wall of the spiral case, and meanwhile, a sliding groove is formed in the inner wall of the air inlet;
The air collecting cover is movably arranged at the inner side of the air inlet, and a dust screen is fixedly arranged on an inner side bolt of the air collecting cover and used for filtering dust and impurities in air;
The exhaust outlet is arranged at the outer side of the volute;
The shaft rod is fixedly arranged on the side wall of the volute, and the outer shaft of the shaft rod 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;
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;
the inner wall of the air outlet is uniformly adhered with a noise reduction air bag, and the surface of the noise reduction air bag is provided with a spherical arc-shaped bulge;
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 in position;
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 in the hidden groove, and an air pipe is connected between the elastic air bag and the noise reduction air bag;
The infusion tube and the cooling tube are of a unidirectional circulation structure, and the cooling tube is spirally wound on the outer side of the motor.
2. The low noise type small centrifugal fan with self-cleaning structure according to claim 1, characterized in that: the wind collecting cover is of a funnel-shaped structure, the sliding blocks are arranged on the outer wall of the wind collecting cover at equal angles, the sliding blocks and the sliding grooves form a telescopic structure, and a reset spring for providing reset elastic force is connected between the side walls of the sliding blocks and the inner walls of the sliding grooves.
3. The low noise type small centrifugal fan with self-cleaning structure according to claim 1, characterized in that: 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 adhered with the elastic air bag.
4. The low noise type small centrifugal fan with self-cleaning structure according to claim 1, characterized in that: the movable column is in an inclined plane structure towards the end face of the wind collecting cover, and the position of the movable column corresponds to that of the wind collecting cover.
5. The low noise type small centrifugal fan with self-cleaning structure according to claim 1, characterized in that: the outside key of movable column is connected with the sector gear, just the sector gear is connected with the rack meshing, and rack and piston cylinder constitute extending structure.
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 CN113464468A (en) | 2021-10-01 |
| CN113464468B true 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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| 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 |
| CN116666059B (en) * | 2023-06-12 | 2024-04-12 | 荣尔电气集团股份有限公司 | Dry-type transformer cooling mechanism |
| 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 |
| CN116696807A (en) * | 2023-07-04 | 2023-09-05 | 江苏万勤风机有限公司 | Novel automatic clean industrial fan |
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| WO2022267250A1 (en) | 2022-12-29 |
| CN113464468A (en) | 2021-10-01 |
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