CN111946663A - Miniature multistage formula impeller - Google Patents

Miniature multistage formula impeller Download PDF

Info

Publication number
CN111946663A
CN111946663A CN202010959617.1A CN202010959617A CN111946663A CN 111946663 A CN111946663 A CN 111946663A CN 202010959617 A CN202010959617 A CN 202010959617A CN 111946663 A CN111946663 A CN 111946663A
Authority
CN
China
Prior art keywords
impeller
hub
blade
reinforcing ring
centrifugal impeller
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN202010959617.1A
Other languages
Chinese (zh)
Inventor
贾自周
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Dongguan Hongying Electronic Technology Co ltd
Original Assignee
Dongguan Hongying Electronic Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Dongguan Hongying Electronic Technology Co ltd filed Critical Dongguan Hongying Electronic Technology Co ltd
Priority to CN202010959617.1A priority Critical patent/CN111946663A/en
Publication of CN111946663A publication Critical patent/CN111946663A/en
Pending legal-status Critical Current

Links

Images

Classifications

    • 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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/281—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps for fans or blowers
    • 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
    • F04D29/00—Details, component parts, or accessories
    • F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
    • F04D29/056—Bearings
    • 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
    • F04D29/26—Rotors specially for elastic fluids
    • F04D29/28—Rotors specially for elastic fluids for centrifugal or helico-centrifugal pumps for radial-flow or helico-centrifugal pumps
    • F04D29/30—Vanes
    • 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
    • F04D29/666—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by means of rotor construction or layout, e.g. unequal distribution of blades or vanes
    • 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
    • F04D29/667—Combating cavitation, whirls, noise, vibration or the like; Balancing especially adapted for elastic fluid pumps by influencing the flow pattern, e.g. suppression of turbulence
    • 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
    • H—ELECTRICITY
    • H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
    • H05K7/00—Constructional details common to different types of electric apparatus
    • H05K7/20—Modifications to facilitate cooling, ventilating, or heating
    • H05K7/20009—Modifications to facilitate cooling, ventilating, or heating using a gaseous coolant in electronic enclosures
    • H05K7/20136—Forced ventilation, e.g. by fans

Abstract

The invention discloses a micro multi-section impeller, which comprises a first reinforcing ring and a second reinforcing ring arranged on one side of the first reinforcing ring, wherein a first centrifugal impeller is arranged on the first reinforcing ring, a first hub is arranged on the first centrifugal impeller, a shaft core is arranged in the center of the first hub, a tenon is arranged on one side of the first hub, a third centrifugal impeller is arranged on the second reinforcing ring, a second hub is arranged in the third centrifugal impeller, a second cross-flow impeller is arranged on the second hub, a mortise is arranged in the second hub, a second hub inner hole is arranged at the lower part of the mortise, the tenon is inserted into the mortise, the shaft core is inserted into the second hub inner hole and is in interference fit, the multi-section impeller comprises three sections of coaxial impellers, a flow passage in the impeller is fully utilized, the impeller efficiency is improved, and the air intake of a fan is improved, reduce fluid leakage and eddy current loss, promote fluid efficiency, promote the performance of fan under the unit volume.

Description

Miniature multistage formula impeller
Technical Field
The invention relates to the technical field of impellers, in particular to a miniature multi-section impeller.
Background
The volume of electronic products is smaller and smaller, so that the heat productivity of chips in unit volume is larger and larger, the performance of the fan is more important when the fan is used as a main radiating element, and the performance optimization of an impeller of a main working part in the fan is particularly important. There are three types of fans in common use: axial fans, centrifugal fans, and cross-flow fans.
The axial flow fan adopts an axial flow impeller, has the same air inlet and outlet directions, is a typical single-sided air inlet flow field and is characterized by large air quantity but low static pressure; the centrifugal fan adopts a centrifugal impeller, the air inlet and outlet directions are mutually vertical, single-side air inlet or double-side air inlet is usually adopted, and the centrifugal fan is characterized by large air volume but high static pressure; the cross flow fan adopts a cross flow impeller, the axial direction is longer, the air inlet and outlet directions are in the same plane, the cross flow fan is also a typical single-sided air inlet flow field, the flow is relatively large, but the static pressure is very low; the impellers of the above fans are not suitable for use in small consumer electronics products where high flow requirements are placed.
The impeller is the key part in the fan, in the aspect of improving fan ventilation efficiency, the key of optimal design is the impeller, secondly is the various shapes and the blade number of blade, because the impeller axial length of fan is longer, and the impeller operation is unstable, and the fluid inefficiency, fluid leakage and eddy current loss are great, designs a novel multistage formula impeller, and the advantage of the impeller of make full use of each section combines better solution above-mentioned problem together.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provides a miniature multi-section impeller, which comprises three sections of coaxial impellers, wherein the impellers rotate to promote fluid to flow, an internal flow passage of the impellers is fully utilized, the efficiency of the impellers is improved, the air inlet quantity of a fan is improved, fluid leakage and vortex loss are reduced, the efficiency of the fluid is improved, and the performance of the fan under unit volume is improved.
In order to achieve the purpose, the invention provides a miniature multi-section impeller, which comprises a first reinforcing ring and a second reinforcing ring arranged on one side of the first reinforcing ring, wherein a first centrifugal impeller is arranged on the first reinforcing ring, a first hub is arranged on the first centrifugal impeller, a shaft core is arranged in the center of the first hub, a tenon is arranged on one side of the first hub, a third centrifugal impeller is arranged on the second reinforcing ring, a second hub is arranged in the third centrifugal impeller, a second cross-flow impeller is arranged on the second hub, a mortise is arranged in the second hub, a second hub inner hole is arranged at the lower part of the mortise, the tenon is inserted into the mortise, and the shaft core is inserted into the second hub inner hole and is in interference fit.
Preferably, the first centrifugal impeller is provided with first blades arranged along a circumferential array, the second cross flow impeller is provided with second blades arranged along a circumferential array, the third centrifugal impeller is provided with third blades arranged along a circumferential array, the first blades are installed between the first reinforcing ring and the first hub and bent to the inner side, the second blades are installed between the first hub and the second hub and bent to the inner side, and the third blades are installed between the second hub and the second reinforcing ring and bent to the inner side.
Preferably, the diameters of the first reinforcing ring and the second reinforcing ring are larger than the diameters of the first hub and the second hub.
Preferably, the first blade is divided by the first hub into a first blade outer side portion and a first blade inner side portion, a surface of the first blade outer side portion is connected to the first reinforcement ring outer side surface, and the first blade inner side portion is connected to the first hub.
Preferably, the third blade is divided by the second hub into a third blade outer part and a third blade inner part, a surface of the third blade outer part is connected with the second reinforcing ring outer side surface, and the third blade inner part is connected with the second hub.
Preferably, one side of the second blade is connected with the first hub, and the other side of the second blade is connected with the second hub.
Preferably, the second hub is provided with a first accommodating cavity for accommodating the installation of the motor, one end of the shaft core is provided with a first bearing, the other end of the shaft core is provided with a second bearing, and the first bearing is arranged in the middle of the first centrifugal impeller.
Preferably, the number of the first blade, the second blade and the third blade is more than 30.
Preferably, the first reinforcing ring and the second reinforcing ring are provided with a plurality of blind holes for reducing the overall weight of the impeller.
Compared with the prior art, the invention has the beneficial effects that:
1. the invention is provided with the first centrifugal impeller, the second cross flow impeller and the third centrifugal impeller, fully exerts the fluid performance advantages of each impeller section, the first centrifugal impeller and the third centrifugal impeller on two sides provide high-pressure airflow, the second cross flow impeller in the middle provides large-flow airflow, the first centrifugal impeller and the third centrifugal impeller are combined together to provide high-pressure large-flow airflow, the space and the internal flow passage of the impellers are fully utilized, the work efficiency of the impellers and the air intake of the fan are improved, the fluid leakage and the eddy loss are reduced, and the fluid efficiency is improved.
2. According to the invention, the motor is arranged on the first accommodating cavity in the second hub, so that the volume of the fan is effectively reduced, the performance of the fan in unit volume is improved, the first bearing is arranged in the middle of the first centrifugal impeller, the distance between the first bearing and the second bearing is reduced, the impeller is more stable in operation, less in vibration and longer in service life, the flow is improved by 70% and the static pressure is improved by 30% under the same size and noise.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
Fig. 1 is a schematic perspective view of a micro multi-segment impeller provided in the present invention;
FIG. 2 is a schematic front view of a multi-sectional impeller according to the present invention;
FIG. 3 is a schematic cross-sectional view of a micro multi-stage impeller of the present invention assembled inside a fan;
FIG. 4 is an exploded view of a multi-sectional impeller according to the present invention;
FIG. 5 is an exploded sectional view of a multi-stage impeller according to the present invention;
FIG. 6 is a schematic front sectional view of a micro multi-stage impeller provided in the present invention;
fig. 7 is an exploded perspective view of a micro multi-segment impeller according to the present invention. The figure includes:
11-a first reinforcing ring, 12-a second reinforcing ring, 2-a first centrifugal impeller, 31-a first hub, 4-a shaft core, 311-a tenon, 6-a second cross flow impeller, 5-a third centrifugal impeller, 32-a second hub, 321-a mortise, 322-a second hub inner hole, 21-a first blade, 61-a second blade, 51-a third blade, 211-a first blade outer part, 212-a first blade inner part, 511-a third blade outer part, 512-a third blade inner part, 91-a motor, 7-a first accommodating cavity, 81-a first bearing, 82-a second bearing and 9-a blind hole.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are one embodiment of the present invention, and not all embodiments of the present invention. All other embodiments obtained by a person skilled in the art based on the embodiments of the present invention without any creative work belong to the protection scope of the present invention.
Referring to fig. 1 to 7, the present invention provides a micro multi-stage impeller, including a first reinforcing ring 11, a second reinforcing ring 12 installed on one side of the first reinforcing ring 11, a first centrifugal impeller 2 installed on the first reinforcing ring 11, a first hub 31 installed on the first centrifugal impeller 2, a shaft core 4 installed at the center of the first hub 31, a tenon 311 installed on one side of the first hub 31, a third centrifugal impeller 5 installed on the second reinforcing ring 12, a second hub 32 installed inside the third centrifugal impeller 5, a second cross flow impeller 6 installed on the second hub 32, wherein the first centrifugal impeller 2 and the third centrifugal impeller 5 may select the same blade type or different blade types according to actual application conditions, if the first centrifugal impeller 2 and the third centrifugal impeller 5 have the same blade type, the impeller of the present invention is composed of two blade types, the first centrifugal impeller 2 and the third centrifugal impeller 5 are of the same profile in the present embodiment; if the first centrifugal impeller 2 and the third centrifugal impeller 5 have different blade types, the multi-section impeller consists of three blade types; in other embodiments, the impeller may also be composed of more than three blade types.
The invention provides a miniature multi-section impeller which is composed of two parts, as shown in figures 4 to 7, a shaft core 4 and a first centrifugal impeller 2 are fixed together through injection molding, and a third centrifugal impeller 5 is separately injection molded; the assembly method is as follows: inside mortise 321 that is equipped with of second wheel hub 32, mortise 321 lower part is equipped with second wheel hub hole 322, tenon 311 inserts in mortise 321, carries out axial and radial location through the cooperation of tenon 311 and mortise 321, simultaneously, axle core 4 inserts in second wheel hub hole 322 and interference fit, and interference fit through axle core 4 and second wheel hub hole 322 realizes that first centrifugal impeller 2 and third centrifugal impeller 5 assemble together.
The first centrifugal impeller 2, the second cross flow impeller 6 and the third centrifugal impeller 5 are communicated, the first centrifugal impeller 2 enables airflow to flow into the first centrifugal impeller 2 from an upper end air inlet, rotate around the first centrifugal impeller 2 and flow out from the tangential direction of the first centrifugal impeller 2, the inflow direction of the airflow is vertical to the outflow direction, the second cross flow impeller 6 enables airflow to flow into the second cross flow impeller 6 from the radial direction, rotate around the second cross flow impeller 6 and flow out from the radial direction of the second cross flow impeller 6, the inflow direction and the outflow direction of the airflow are in the same plane, the third centrifugal impeller 5 enables airflow to flow into the third centrifugal impeller 5 from the lower end air inlet, rotate around the third centrifugal impeller 5 and flow out from the tangential direction of the third centrifugal impeller 5, and the inflow direction of the airflow is vertical to the outflow direction, the miniature multi-section impeller consists of a first centrifugal impeller 2, a second cross flow impeller 6 and a third centrifugal impeller 5, the fluid performance advantages of the impellers of all sections are fully exerted, the first centrifugal impeller 2 and the third centrifugal impeller 5 on two sides provide high-pressure airflow, the second cross flow impeller 6 in the middle provides large-flow airflow, the two impellers are combined together to provide high-pressure large-flow airflow, the space and the inner flow channel of the impeller are fully utilized, the work efficiency of the impeller and the air intake of a fan are improved, the fluid leakage and the eddy loss are reduced, and the fluid efficiency is improved.
First centrifugal impeller 2 is equipped with first blade 21 along the circumference array arrangement, second cross flow impeller 6 is equipped with second blade 61 along the circumference array arrangement, third centrifugal impeller 5 is equipped with third blade 51 along the circumference array arrangement, first blade 21 is installed between first reinforcing ring 11 and first wheel hub 31 and is crooked to the inboard, second blade 61 is installed between first wheel hub 31 and second wheel hub 32 and is crooked to the inboard, third blade 51 is installed between second wheel hub 32 and second reinforcing ring 12 and is crooked to the inboard.
The diameters of the first reinforcing ring 11 and the second reinforcing ring 12 are larger than the diameters of the first hub 31 and the second hub 32, the first centrifugal impeller 2 is arranged between the first reinforcing ring 11 and the first hub 31, the second cross-flow impeller 6 is arranged between the first hub 31 and the second hub 32, the third centrifugal impeller 5 is arranged between the second hub 32 and the second reinforcing ring 12, and the high-pressure airflow flowing into the first centrifugal impeller 2 from the upper end, the high-pressure airflow flowing into the third centrifugal impeller 5 from the lower end and the large-flow airflow flowing into the second cross-flow impeller 5 from the middle part are converged together and flow out from the tangential direction.
The first blade 21 is divided by the first hub 31 into a first blade outer part 211 and a first blade inner part 212, a surface of the first blade outer part 211 is connected to an outer surface of the first reinforcing ring 11, and the first blade inner part 212 is connected to the first hub 31.
The third blade 51 is divided by the second hub 32 into a third blade outer part 511 and a third blade inner part 512, a surface of the third blade outer part 511 is connected to an outer surface of the second reinforcing ring 12, and the third blade inner part 512 is connected to the second hub 32.
The second blade 61 is connected to the first hub 31 at one side and to the second hub 32 at the other side.
Second wheel hub 32 is equipped with the first chamber 7 that holds that is used for holding the installation of motor 91, first bearing 81 has been installed to axle core 4 one end, and second bearing 82 has been installed to the other end, first bearing 81 is installed at first centrifugal impeller 2 middle part, motor 91 is installed on the inside first chamber 7 that holds of second wheel hub 32, has effectively reduced the volume of fan, promotes the performance of fan under the unit volume, first bearing 81 is installed at first centrifugal impeller 2 middle part, has reduced the distance between first bearing 81 and the second bearing 82 for the impeller operation is more steady, and the vibration is littleer, and the life-span is longer, under with size and noise, flow promotes 70%, and static pressure promotes 30%.
The number of the first blade 21, the second blade 61 and the third blade 51 is more than 30, and experiments prove that the optimal number of blades is selected.
The first reinforcing ring 11 and the second reinforcing ring 12 are respectively provided with a plurality of blind holes 9 for reducing the whole weight of the impeller, and the blind holes 9 are arranged to reduce part of the weight of the impeller, so that the quality of the impeller is controlled.
In conclusion, the beneficial effects of the invention are as follows:
the invention is provided with the first centrifugal impeller 2, the second cross flow impeller 6 and the third centrifugal impeller 5, the fluid performance advantages of each section of impeller are fully exerted, the first centrifugal impeller 2 and the third centrifugal impeller 5 at two sides provide high-pressure airflow, the second cross flow impeller 6 in the middle provides large-flow airflow, the two impellers are combined together to provide high-pressure large-flow airflow, the space and the internal flow passage of the impeller are fully utilized, the work efficiency of the impeller and the air inlet amount of a fan are improved, the fluid leakage and the eddy loss are reduced, and the fluid efficiency is improved; according to the invention, the motor 91 is arranged on the first accommodating cavity 7 in the second hub 32, so that the volume of the fan is effectively reduced, the performance of the fan in unit volume is improved, the first bearing 81 is arranged in the middle of the first centrifugal impeller 2, the distance between the first bearing 81 and the second bearing 82 is reduced, the impeller runs more stably, the vibration is smaller, the service life is longer, the flow is improved by 70% and the static pressure is improved by 30% under the same size and noise.
The foregoing is a preferred embodiment of the present invention, and it should be noted that it would be apparent to those skilled in the art that various modifications and enhancements can be made without departing from the principles of the invention, and such modifications and enhancements are also considered to be within the scope of the invention.

Claims (9)

1. The miniature multi-section impeller is characterized by comprising a first reinforcing ring (11) and a second reinforcing ring (12) arranged on one side of the first reinforcing ring (11), wherein a first centrifugal impeller (2) is arranged on the first reinforcing ring (11), a first wheel hub (31) is arranged on the first centrifugal impeller (2), a shaft core (4) is arranged at the center of the first wheel hub (31), a tenon (311) is arranged on one side of the first wheel hub (31), a third centrifugal impeller (5) is arranged on the second reinforcing ring (12), a second wheel hub (32) is arranged in the third centrifugal impeller (5), a second cross-flow impeller (6) is arranged on the second wheel hub (32), a mortise (321) is arranged in the second wheel hub (32), a second wheel hub inner hole (322) is arranged at the lower part of the mortise (321), and the tenon (311) is inserted into the mortise (321), the shaft core (4) is inserted into the second hub inner hole (322) and is in interference fit.
2. A micro multi-segment impeller according to claim 1, wherein the first centrifugal impeller (2) is provided with first blades (21) arranged in a circumferential array, the second cross flow impeller (6) is provided with second blades (61) arranged in a circumferential array, the third centrifugal impeller (5) is provided with third blades (51) arranged in a circumferential array, the first blades (21) are installed between the first reinforcement ring (11) and the first hub (31) and bent to the inner side, the second blades (61) are installed between the first hub (31) and the second hub (32) and bent to the inner side, and the third blades (51) are installed between the second hub (32) and the second reinforcement ring (12) and bent to the inner side.
3. A miniature multi-stage impeller according to claim 1 wherein the diameter of the first and second reinforcing rings (11, 12) is greater than the diameter of the first and second hubs (31, 32).
4. A micro multi-sectional impeller according to claim 2, wherein the first blade (21) is divided by the first hub (31) into a first blade outer portion (211) and a first blade inner portion (212), a surface of the first blade outer portion (211) is connected to a surface of the first reinforcing ring (11), and the first blade inner portion (212) is connected to the first hub (31).
5. A micro multi-segment impeller according to claim 2, wherein the third blade (51) is divided by the second hub (32) into a third blade outer portion (511) and a third blade inner portion (512), a surface of the third blade outer portion (511) is connected to the second reinforcing ring (12) outer surface, and the third blade inner portion (512) is connected to the second hub (32).
6. A miniature multi-stage impeller according to claim 2, wherein said second blade (61) is connected to the first hub (31) on one side and to the second hub (32) on the other side.
7. The impeller of claim 1, wherein the second hub (32) has a first receiving cavity (7) for receiving the motor (91) and the shaft core (4) has a first bearing (81) at one end and a second bearing (82) at the other end, and the first bearing (81) is installed in the middle of the first centrifugal impeller (2).
8. A miniature multi-stage impeller according to claim 1 wherein there are more than 30 of said first (21), second (61) and third (51) vanes.
9. A miniature multi-section impeller according to claim 1, wherein the first reinforcing ring (11) and the second reinforcing ring (12) are provided with a plurality of blind holes (9) for reducing the overall weight of the impeller.
CN202010959617.1A 2020-09-14 2020-09-14 Miniature multistage formula impeller Pending CN111946663A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202010959617.1A CN111946663A (en) 2020-09-14 2020-09-14 Miniature multistage formula impeller

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202010959617.1A CN111946663A (en) 2020-09-14 2020-09-14 Miniature multistage formula impeller

Publications (1)

Publication Number Publication Date
CN111946663A true CN111946663A (en) 2020-11-17

Family

ID=73357266

Family Applications (1)

Application Number Title Priority Date Filing Date
CN202010959617.1A Pending CN111946663A (en) 2020-09-14 2020-09-14 Miniature multistage formula impeller

Country Status (1)

Country Link
CN (1) CN111946663A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112576524A (en) * 2020-12-04 2021-03-30 重庆海尔空调器有限公司 Cross-flow fan and air conditioner with same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112576524A (en) * 2020-12-04 2021-03-30 重庆海尔空调器有限公司 Cross-flow fan and air conditioner with same
CN112576524B (en) * 2020-12-04 2023-04-14 重庆海尔空调器有限公司 Cross-flow fan and air conditioner with same

Similar Documents

Publication Publication Date Title
CA2615829C (en) Centrifugal blower for air handling equipment
CN201297278Y (en) Closed vane wheel with S-shaped novel vanes dedicated to small high-speed centrifugal fan
US6386839B1 (en) High performance radiator fan
US8100645B2 (en) Axial flow impeller
US20030034151A1 (en) Heat exchanger type fan
KR101913147B1 (en) Centrifugal impeller having backward blades using dual gradient sectional shape type
CN111946663A (en) Miniature multistage formula impeller
CN101484707A (en) Centrifugal impeller
CN111946647A (en) Novel layout structure
CN212774917U (en) Miniature multistage formula impeller
CN100380000C (en) Casing seat of axial-flow radiating fan
JP2001304186A (en) Diffuser of centrifugal compressor
CN210484199U (en) Centrifugal air duct structure, centrifugal fan and air purification equipment
CN210343841U (en) Impeller structure of firm type high wind high pressure fan
CN212454907U (en) Novel layout structure
KR101817956B1 (en) Impeller for a blower
CN216518819U (en) Double-suction fan impeller sucking from same side
CN219622931U (en) Centrifugal fan and centrifugal wind wheel thereof
CN218934770U (en) Centrifugal axial flow fan
CN215293002U (en) Impeller assembly, multi-wing centrifugal fan and household appliance
CN218862926U (en) Impeller of multi-wing centrifugal fan, multi-wing centrifugal fan and range hood
KR200216272Y1 (en) multi-stage, high-pressure water pump of a centrifugal type
CN219412989U (en) Hole type servo structure centrifugal fan
CN217481589U (en) Impeller of centrifugal fan, centrifugal fan and range hood
CN220435060U (en) Single-stage air-float blower

Legal Events

Date Code Title Description
PB01 Publication
PB01 Publication
SE01 Entry into force of request for substantive examination
SE01 Entry into force of request for substantive examination
CB02 Change of applicant information
CB02 Change of applicant information

Address after: 523000 rooms 401 and 602, building 9, No. 8, North 1st Street, Dalingshan lake, Dalingshan Town, Dongguan City, Guangdong Province

Applicant after: Dongguan Hongying Electronic Technology Co.,Ltd.

Address before: 4 / F, building J, jinxiongda Science Park, Xingyuan Road, Datang Lang village, Dalingshan Town, Dongguan City, Guangdong Province, 523000

Applicant before: Dongguan Hongying Electronic Technology Co.,Ltd.