CN212774917U - Miniature multistage formula impeller - Google Patents
Miniature multistage formula impeller Download PDFInfo
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- CN212774917U CN212774917U CN202021997858.7U CN202021997858U CN212774917U CN 212774917 U CN212774917 U CN 212774917U CN 202021997858 U CN202021997858 U CN 202021997858U CN 212774917 U CN212774917 U CN 212774917U
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- impeller
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- wheel hub
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- blade
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Abstract
The utility model discloses a miniature multistage impeller, including first reinforcing ring, install the second reinforcing ring in first reinforcing ring one side, install first centrifugal impeller on the first reinforcing ring, first centrifugal impeller facial make-up is equipped with first wheel hub, the axle core has been installed at first wheel hub center, first wheel hub one side is equipped with the tenon, second reinforcing ring has been installed third centrifugal impeller, third centrifugal impeller internally mounted has the second wheel hub, second wheel hub facial make-up is equipped with the second crossflow impeller, second wheel hub internally equipped with the mortise, the mortise lower part is equipped with second wheel hub hole, the tenon inserts in the mortise, the axle core inserts and interference fit in second wheel hub hole, multistage inlet air impeller contains three-section coaxial impeller, make full use of impeller internal flow channel, promote the impeller efficiency, promote the volume of fan, reduce fluid leakage and eddy current loss, promote fluid efficiency, promote the performance of fan under the unit volume.
Description
Technical Field
The utility model relates to an impeller technical field, in particular to miniature multistage formula 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.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to overcome the above-mentioned defect among the prior art, provide a miniature multistage formula impeller, this multistage formula impeller contains the coaxial impeller of three-section, and the impeller rotation makes the fluid flow, and make full use of impeller internal flow says, promotes impeller efficiency, promotes the intake of fan, reduces fluid leakage and eddy current loss, promotes fluid efficiency, promotes the performance of fan under the unit volume.
In order to realize the above-mentioned purpose, the utility model provides a miniature multistage formula impeller, including first reinforcing ring, install the second reinforcing ring in first reinforcing ring one side, first centrifugal impeller has been installed on the first reinforcing ring, first centrifugal impeller facial make-up is equipped with first wheel hub, the axle core has been installed at first wheel hub center, first wheel hub one side is equipped with the tenon, third centrifugal impeller has been installed on the second reinforcing ring, the inside second wheel hub that has installed of third centrifugal impeller, second wheel hub facial make-up is equipped with second cross flow impeller, the inside mortise that is equipped with of second wheel hub, the mortise lower part is equipped with second wheel hub hole, the tenon inserts in the mortise, the axle core inserts second wheel hub hole and 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 beneficial effects of the utility model reside in that:
1. the utility model discloses installed first centrifugal impeller, second crossing current impeller and third centrifugal impeller, the fluid performance advantage of each section impeller of full play, the first centrifugal impeller and the third centrifugal impeller of both sides provide high-pressure air current, middle second crossing current impeller then provides large-traffic air current, both combine together and provide high-pressure large-traffic air current jointly, make full use of the space of impeller and inside runner, the acting efficiency of impeller and the intake of fan have been promoted, reduce fluid leakage and vortex loss, promote fluid efficiency.
2. The utility model discloses install the motor on the inside first chamber that holds of second wheel hub, effectively reduced the volume of fan, promoted the performance of fan under the unit volume, first bearing is installed and is established at first centrifugal impeller middle part, has reduced the distance between first bearing and the second bearing 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 the static pressure promotes 30%.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings needed to be used in the description of the embodiments or the prior art will be briefly described 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 by the present invention;
fig. 2 is a schematic front structural view of a micro multi-stage impeller provided by 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 schematic view of a micro multi-stage impeller provided by the present invention;
fig. 5 is an exploded sectional view of a micro multi-stage impeller provided by the present invention;
fig. 6 is a schematic front sectional view of a micro multi-stage impeller provided by the present invention;
fig. 7 is an exploded perspective view of the micro multi-segment impeller provided by 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 solution of the present invention will be clearly and completely described below with reference to the accompanying drawings of the present embodiment, and it is obvious that the described embodiment is an embodiment of the present invention, not all embodiments. Based on this embodiment in the present invention, all other embodiments obtained by the ordinary skilled person in the art without creative work all 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, the first centrifugal impeller 2 and the third centrifugal impeller 5 can 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 utility model provides a miniature multi-section impeller, which comprises two parts, as shown in figures 4 to 7, a shaft core 4 and a first centrifugal impeller 2 are fixed together by 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 utility model discloses a miniature multistage formula impeller is by first centrifugal impeller 2, second cross current impeller 6 and third centrifugal impeller 5 are constituteed, the fluid performance advantage of each section impeller of full play, the first centrifugal impeller 2 and the third centrifugal impeller 5 of both sides provide high-pressure draught, middle second cross current impeller 6 then provides large-traffic air current, both combine together and provide high-pressure large-traffic air current jointly, make full use of the space of impeller and inside runner, the work efficiency of impeller and the intake of fan have been promoted, reduce fluid leakage and vortex loss, promote fluid efficiency.
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.
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.
To sum up, the beneficial effects of the utility model reside in that:
the utility model discloses installed first centrifugal impeller 2, second cross flow impeller 6 and third centrifugal impeller 5, the fluid performance advantage of each section impeller of full play, the first centrifugal impeller 2 and the third centrifugal impeller 5 of both sides provide high-pressure air current, middle second cross flow impeller 6 then provides large-traffic air current, both combine together and provide high-pressure large-traffic air current jointly, make full use of the space of impeller and inside runner, the acting efficiency of impeller and the intake of fan have been promoted, reduce fluid leakage and vortex loss, promote fluid efficiency; the utility model discloses install motor 91 on the inside first chamber 7 that holds of second wheel hub 32, effectively reduced the volume of fan, promote 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, the flow promotes 70%, and the static pressure promotes 30%.
The foregoing is a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of improvements and decorations can be made without departing from the principle of the present invention, and these improvements and decorations are also considered as the protection scope of the present 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 2 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.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021997858.7U CN212774917U (en) | 2020-09-14 | 2020-09-14 | Miniature multistage formula impeller |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021997858.7U CN212774917U (en) | 2020-09-14 | 2020-09-14 | Miniature multistage formula impeller |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212774917U true CN212774917U (en) | 2021-03-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021997858.7U Active CN212774917U (en) | 2020-09-14 | 2020-09-14 | Miniature multistage formula impeller |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212774917U (en) |
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2020
- 2020-09-14 CN CN202021997858.7U patent/CN212774917U/en active Active
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Address after: 523000 rooms 401 and 602, building 9, No. 8, North 1st Street, Dalingshan lake, Dalingshan Town, Dongguan City, Guangdong Province Patentee 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 Patentee before: Dongguan Hongying Electronic Technology Co.,Ltd. |