CN112177960A - Outer rotor fan with hollow supporting shaft - Google Patents
Outer rotor fan with hollow supporting shaft Download PDFInfo
- Publication number
- CN112177960A CN112177960A CN202011199172.8A CN202011199172A CN112177960A CN 112177960 A CN112177960 A CN 112177960A CN 202011199172 A CN202011199172 A CN 202011199172A CN 112177960 A CN112177960 A CN 112177960A
- Authority
- CN
- China
- Prior art keywords
- supporting shaft
- outer rotor
- fan
- shell
- hollow
- 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- Withdrawn
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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
- F04D25/00—Pumping installations or systems
- F04D25/02—Units comprising pumps and their driving means
- F04D25/06—Units comprising pumps and their driving means the pump being electrically driven
- F04D25/0606—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump
- F04D25/0613—Units comprising pumps and their driving means the pump being electrically driven the electric motor being specially adapted for integration in the pump the electric motor being of the inside-out type, i.e. the rotor is arranged radially outside a central stator
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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
- F04D29/05—Shafts or bearings, or assemblies thereof, specially adapted for elastic fluid pumps
- F04D29/053—Shafts
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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
- F04D29/26—Rotors specially for elastic fluids
- F04D29/32—Rotors specially for elastic fluids for axial flow pumps
- F04D29/325—Rotors specially for elastic fluids for axial flow pumps for axial flow fans
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K7/00—Arrangements for handling mechanical energy structurally associated with dynamo-electric machines, e.g. structural association with mechanical driving motors or auxiliary dynamo-electric machines
- H02K7/14—Structural association with mechanical loads, e.g. with hand-held machine tools or fans
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Motor Or Generator Cooling System (AREA)
- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The invention belongs to the field of electric fans, and discloses an outer rotor fan with a hollow supporting shaft, wherein the supporting shaft 1 is hollow, a stator core 2 is arranged on the excircle of the hollow supporting shaft 1, and a coil 10 is embedded in the stator core 2; the left and right of the supporting shaft 1 are provided with bearings 13 and 7; the outer rotor is composed of a shell 3, a rotor iron core 4 and a rotor squirrel cage 5, fan blades 9 are arranged on the excircle of the shell 3, end covers 12 and 6 are arranged at the two ends of the shell 3, a bearing chamber is arranged between the end covers 12 and 6, and bearings 13 and 7 are arranged in the bearing chamber; screw holes 15 and 8 for fixing the integral fan are arranged at two ends of the supporting shaft 1, and a wire outlet hole 11 is arranged on the supporting shaft 1 for allowing a power cable 14 of the coil 10 to pass through. The invention overcomes the defect that the traditional solid supporting shaft of the fan can not be arranged on equipment needing axial heat dissipation wind.
Description
Technical Field
The invention relates to an electromechanical product in the field of electric fans, in particular to an outer rotor fan with a hollow supporting shaft.
Background
At present, most of electric fans used in life, factory workshops and factories work in a mode that a fan blade is arranged at one end of a rotating shaft of a motor; the existing ceiling fan is an outer rotor, but a middle stator shaft of the existing ceiling fan is solid, and a middle support shaft of the existing outer rotor fan is all solid; in some occasions and products, a fan is required for heat dissipation, the wind direction is coaxial, and the heat dissipation wind is uniform; for example: the interior of the roller motor needs heat dissipation wind, and the existing solid fan shaft cannot be installed; some devices require directional cooling air, which cannot be realized due to the solid fan shaft.
In summary, the conventional electric fan has technical shortcomings, and it is necessary to provide an outer rotor fan with a hollow support shaft.
Disclosure of Invention
The technical scheme adopted by the invention is that the outer rotor fan with a hollow supporting shaft is adopted, the supporting shaft (1) of the outer rotor fan motor is hollow, a stator core (2) is arranged on the excircle of the hollow supporting shaft (1), and a coil (10) is embedded in the stator core (2); bearings (13) and (7) are respectively arranged on the left and the right of the supporting shaft (1), and the distance between the bearings (13) and (7) is determined according to the positions of the outer rotor shell (3) and the end covers (12) and (6).
As a further technical scheme, the outer rotor is composed of a shell (3), a rotor iron core (4) and a rotor squirrel cage (5), a plurality of fan blades (9) are installed on the excircle of the shell (3), end covers (12) and (6) are installed at the left end and the right end of the shell (3), a bearing chamber is arranged between the left end cover (12) and the right end cover (6), the bearing chamber is used for installing bearings (13) and (7) at the left end and the right end of the supporting shaft (1), and the left end cover (12) and the right end cover (6) rotate along with the rotation of the outer rotor shell (3).
As a further technical scheme, screw holes (15) and (8) for fixing the integral fan are formed in the left end and the right end of the supporting shaft (1), a wire outlet hole (11) is formed in the supporting shaft (1), and a power cable (14) of the coil (10) penetrates out of the wire outlet hole.
Drawings
While the drawings necessary for a detailed description of the invention or for a prior art description will now be briefly described in order to clearly illustrate the detailed description of the invention, it should be apparent that the drawings in the following description are illustrative of some embodiments of the invention and that other drawings may be derived therefrom by those skilled in the art without the exercise of inventive faculty.
FIG. 1 is a schematic cross-sectional view of the structure of the present invention.
Fig. 2 is a schematic end view of the invention with the end cap (12) removed from the left end of fig. 1.
Detailed Description
In the description of the present invention, it should be noted that the terms "middle", "center", "upper", "lower", "left", "right", "inner", "outer", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "connected" and "fixed" are to be understood in a broad sense, for example: can be connected, installed and fixed by bolts or screws; or can be mechanically connected, installed and fixed; or the electric welding connection installation and fixation can be carried out. The specific meanings of the above terms in the present invention can be understood by those of ordinary skill in the art according to specific situations.
The following describes the embodiments of the present invention with reference to fig. 1 and 2.
The outer rotor fan is characterized in that the outer rotor fan is hollow, a supporting shaft 1 of an outer rotor fan motor is hollow, a stator core 2 is arranged on the outer circle of the hollow supporting shaft 1, and a coil 10 is embedded in the stator core 2; bearings 13 and 7 are respectively arranged on the left and the right of the supporting shaft 1, and the distance between the bearings 13 and 7 is determined according to the positions of the outer rotor shell 3 and the end covers 12 and 6.
The outer rotor is composed of a shell 3, a rotor iron core 4 and a rotor squirrel cage 5, a plurality of fan blades 9 are arranged on the excircle of the shell 3, end covers 12 and 6 are arranged at the left end and the right end of the shell 3, a bearing chamber is arranged between the end covers 12 and 6 at the left end and the right end, the bearing chamber is used for installing bearings 13 and 7 at the left end and the right end of the supporting shaft 1, and the end covers 12 and 6 at the left end and the right end rotate along with the rotation of the outer rotor shell 3.
The left end and the right end of the supporting shaft 1 are provided with screw holes 15 and 8 for fixing the integral fan, the supporting shaft 1 is provided with a wire outlet hole 11 for leading out a power supply cable 14 of the coil 10.
The hollow outer rotor fan with the supporting shaft is mainly characterized in that the supporting shaft is made of seamless steel tubes, and the aperture in the middle can be designed according to the size of the power of a motor, the rotating speed of the fan and the size of the diameter of the shaft arranged on the same axis; the number of the fan blades is determined according to the requirements of the power of the motor, the rotating speed of the fan and the like.
The outer rotor fan with the hollow supporting shaft has the advantages that the outer rotor mode is adopted, the motor and the fan are integrated, and a large amount of steel is saved; the structure is simple, the installation is simple and convenient, and the device is suitable for the requirement condition of coaxial heat radiation wind.
Claims (3)
1. The outer rotor fan with the hollow supporting shaft is characterized in that the supporting shaft (1) of the outer rotor fan motor is hollow, a stator core (2) is arranged on the excircle of the hollow supporting shaft (1), and a coil (10) is embedded in the stator core (2); bearings (13) and (7) are respectively arranged on the left and the right of the supporting shaft (1), and the distance between the bearings (13) and (7) is determined according to the positions of the outer rotor shell (3) and the end covers (12) and (6).
2. The outer rotor fan with a hollow supporting shaft according to claim 1 is characterized in that the outer rotor is composed of a shell (3), a rotor iron core (4) and a rotor squirrel cage (5), a plurality of fan blades (9) are installed on the excircle of the shell (3), end covers (12) and (6) are installed at the left end and the right end of the shell (3), a bearing chamber is arranged between the left end cover (12) and the right end cover (6), the bearing chamber is used for installing bearings (13) and (7) at the left end and the right end of the supporting shaft (1), and the left end cover (12) and the right end cover (6) rotate along with the rotation of the outer rotor shell (3).
3. The outer rotor fan with hollow supporting shaft according to claim 1, characterized in that the supporting shaft (1) is provided with screw holes (15), (8) at the left and right ends for fixing the integral fan, the supporting shaft (1) is provided with wire outlet holes (11) for passing out the power cable (14) of the coil (10).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011199172.8A CN112177960A (en) | 2020-11-01 | 2020-11-01 | Outer rotor fan with hollow supporting shaft |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011199172.8A CN112177960A (en) | 2020-11-01 | 2020-11-01 | Outer rotor fan with hollow supporting shaft |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN112177960A true CN112177960A (en) | 2021-01-05 |
Family
ID=73917484
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202011199172.8A Withdrawn CN112177960A (en) | 2020-11-01 | 2020-11-01 | Outer rotor fan with hollow supporting shaft |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN112177960A (en) |
-
2020
- 2020-11-01 CN CN202011199172.8A patent/CN112177960A/en not_active Withdrawn
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| WW01 | Invention patent application withdrawn after publication |
Application publication date: 20210105 |
|
| WW01 | Invention patent application withdrawn after publication |