CN110792622A - Heat exhausting fan of pump - Google Patents
Heat exhausting fan of pump Download PDFInfo
- Publication number
- CN110792622A CN110792622A CN201911237577.3A CN201911237577A CN110792622A CN 110792622 A CN110792622 A CN 110792622A CN 201911237577 A CN201911237577 A CN 201911237577A CN 110792622 A CN110792622 A CN 110792622A
- Authority
- CN
- China
- Prior art keywords
- fan
- fan cover
- blades
- cover
- annular array
- 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.)
- Withdrawn
Links
- 241000883990 Flabellum Species 0.000 claims description 4
- 230000003014 reinforcing effect Effects 0.000 claims description 4
- 230000017525 heat dissipation Effects 0.000 abstract description 7
- 238000003491 array Methods 0.000 abstract 1
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 239000012530 fluid Substances 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
- F04D19/00—Axial-flow pumps
- F04D19/002—Axial flow fans
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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
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/522—Casings; Connections of working fluid for axial pumps 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
- F04D29/40—Casings; Connections of working fluid
- F04D29/52—Casings; Connections of working fluid for axial pumps
- F04D29/54—Fluid-guiding means, e.g. diffusers
- F04D29/541—Specially 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
- F04D29/58—Cooling; Heating; Diminishing heat transfer
- F04D29/582—Cooling; Heating; Diminishing heat transfer specially 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
- F04D29/66—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
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 relates to a heat exhausting fan of a pump, which comprises a row of fan blades and a fan cover which are integrally formed. The center of the fan cover is provided with a circular boss which protrudes upwards, and the center of the circular boss is provided with a cylindrical pipe which is erected upwards; the row of fan blades are uniformly and obliquely attached to the side surface of the fan cover, annular arrays of chutes are arranged between the fan cover and the fan blades on the side surface, and each fan blade corresponds to one chute; the bottom of the fan cover is provided with annular array stepped grooves with the same number as the fan blades, and each fan blade also corresponds to one stepped groove. According to the annular array chute design and the annular array stepped groove design at the bottom of the fan cover, radial air supply is changed into axial air supply, the air inlet volume of the fan is increased to the maximum extent, airflow entering from the stepped groove is guided to the side, the area of an air inlet is increased, the air volume is larger, the airflow is more smoothly flushed to a motor, heat is taken away, and the heat dissipation efficiency of the airflow is further improved.
Description
Technical Field
The invention relates to a fan, in particular to a heat exhausting fan applied to the field of household micropumps.
Background
The pump product is one of important general mechanical products in various fields of national economy, and the household micro pump is widely applied in a small and convenient way and occupies the half-wall Jiangshan of the pump market. The household micro pump mainly comprises a centrifugal pump and a vortex pump, and mainly comprises a pump body (a fluid transmission system), a motor (a power system), a fan and a fan cover (a heat dissipation system). The conventional pump fan is a straight blade, and is used for radial air supply (as shown in fig. 4), and air flow is blown to the heat dissipation ribs by utilizing the rebound of the inner wall of the fan cover so as to achieve the heat dissipation effect. When the air current strikes the fan housing inner wall, energy loss is great, and has produced great impulsive noise, and its efficiency is lower and often accompanies the noise.
Disclosure of Invention
The invention aims to overcome the defects of the traditional pump fan and provide the efficient and low-noise heat-exhausting fan special for the pump.
The purpose of the invention is realized by the following technical scheme:
a heat exhausting fan of a pump comprises a row of fan blades and a fan cover which are integrally formed, wherein all the fan blades are the same; the center of the fan cover is provided with a circular boss protruding upwards; the fan cover is characterized in that the row of fan blades are uniformly and obliquely attached to the side face of the fan cover, an annular array chute is arranged between the fan cover and the fan blades on the side face, and an annular array stepped groove is arranged at the bottom of the fan cover.
Each fan blade corresponds to one inclined groove and one stepped groove; the number of the fan blades is the same as that of the inclined grooves and the stepped grooves.
The center of the circular boss is provided with a cylindrical tube which is erected upwards, and a through gap round hole is arranged in the cylindrical tube.
And reinforcing ribs are arranged between the stepped grooves.
The invention has the following excellent effects:
1. the efficiency is higher: radial air supply is changed into axial air supply, so that air flow directly acts on the heat dissipation ribs of the motor, heat is taken away, and efficiency is improved.
2. The chute design of annular array and the ladder groove design of fan lid bottom annular array have increased the fan intake to the at utmost, make the air current direction side that gets into from the ladder groove, have increased the air intake area, make the amount of wind bigger, make more smooth and easy towards the motor of air current, further improve the radiating efficiency of air current.
3. This heat exhausting fan's noise is lower: after radial air supply is changed into axial air supply, noise caused by impact of airflow on the inner wall of the fan cover is directly avoided.
Description of the drawings:
FIG. 1 is a front perspective view of a heat rejection fan of the pump of the present invention;
FIG. 2 is a rear perspective view of the heat exhausting fan of the pump of the present invention;
FIG. 3 is a schematic view of the air flow direction during operation of the present invention;
fig. 4 is a schematic view showing the flow direction of air when the conventional pump fan is operated.
In the figure:
1. a fan blade; 2. a chute; 3. a stepped groove; 4. a cylindrical tube; 5. a fan cover; 5-1, a circular boss; 6. reinforcing ribs; 7. a fan housing; 8. an electric motor.
Detailed Description
Referring to fig. 1 and 2, the present invention is a heat exhausting fan of a pump, including a row of fan blades 1 and a fan cover 5 integrally formed, and each fan blade 1 is the same blade. The center of the fan cover 5 is provided with a circular boss 5-1 protruding upwards, the center of the circular boss 5-1 is provided with a cylindrical tube 4 standing upwards, and a through gap round hole is arranged in the tube (the gap is used for fixing with a motor shaft). The fan cover is characterized in that the row of fan blades 1 are uniformly and obliquely attached to the side surface of the fan cover 5, annular-array inclined grooves 2 are formed between the fan cover 5 and the fan blades 1 on the side surface, and each fan blade 1 corresponds to one inclined groove 2. The bottom of the fan cover 5 is provided with annular array stepped grooves 3 with the same number as the fan blades 1, and each fan blade 1 also corresponds to one stepped groove 3. The reinforcing ribs 6 are arranged between the stepped grooves 3, so that the air volume is increased to the maximum degree, and the strength of the bottom of the fan cover 5 is guaranteed.
In the actual design, flabellum 1, chute 2 and the quantity of ladder groove 3 are changeable along with fan external diameter, because flabellum is certain with the chute size, so quantity corresponding needs change when the external diameter changes. In the illustrated embodiment of the present invention, the number of the fan blades 1, the inclined grooves 2 and the stepped grooves 3 is 6, and the number smaller by one may be 5, and the number larger by more.
Fig. 3 is an air flow direction diagram of the operation of the present invention, and compared with the conventional air flow direction diagram shown in fig. 4, it can be clearly seen that the present invention changes the radial air supply of the conventional fan into the axial air supply, and the fan blades directly blow the air flow to the heat dissipation ribs, thereby greatly improving the heat dissipation efficiency and eliminating the noise caused by the impact of the air flow on the inner wall of the fan housing. In the figure, reference numeral 7 denotes a fan cover of the fan, and reference numeral 8 denotes a motor provided in the fan. The fan cover 7 is used for protecting the fan, the motor 8 drives the fan to rotate, and the fan exhausts air for the motor to dissipate heat.
Claims (4)
1. A heat exhausting fan of a pump comprises a row of fan blades (1) and a fan cover (5) which are integrally formed, wherein all the fan blades (1) are the same blades; the method is characterized in that: the center of the fan cover (5) is provided with a circular boss (5-1) protruding upwards; one row of flabellum (1) incline attached to the side of fan lid (5) uniformly, be equipped with annular array's chute (2) between fan lid (5) and flabellum (1) of side, be equipped with annular array's ladder groove (3) bottom fan lid (5).
2. The heat exhausting fan according to claim 1, wherein: each fan blade (1) corresponds to one inclined groove (2) and one stepped groove (3); the number of the fan blades (1) is the same as that of the inclined grooves (2) and the stepped grooves (3).
3. The heat exhausting fan according to claim 1, wherein: the center of the circular boss (5-1) is provided with a cylindrical tube (4) which is erected upwards, and a through gap round hole is arranged in the cylindrical tube (4).
4. The heat exhausting fan according to claim 1, wherein: and reinforcing ribs (6) are arranged between the stepped grooves (3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911237577.3A CN110792622A (en) | 2019-12-06 | 2019-12-06 | Heat exhausting fan of pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201911237577.3A CN110792622A (en) | 2019-12-06 | 2019-12-06 | Heat exhausting fan of pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110792622A true CN110792622A (en) | 2020-02-14 |
Family
ID=69447844
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201911237577.3A Withdrawn CN110792622A (en) | 2019-12-06 | 2019-12-06 | Heat exhausting fan of pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110792622A (en) |
-
2019
- 2019-12-06 CN CN201911237577.3A patent/CN110792622A/en not_active Withdrawn
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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 | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20200214 |