CN220692909U - Outer rotor motor - Google Patents
Outer rotor motor Download PDFInfo
- Publication number
- CN220692909U CN220692909U CN202321821493.6U CN202321821493U CN220692909U CN 220692909 U CN220692909 U CN 220692909U CN 202321821493 U CN202321821493 U CN 202321821493U CN 220692909 U CN220692909 U CN 220692909U
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- Prior art keywords
- end cover
- base
- outer rotor
- mounting
- rotating shaft
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- 230000002093 peripheral effect Effects 0.000 claims abstract description 8
- 230000000149 penetrating effect Effects 0.000 claims description 3
- 241000883990 Flabellum Species 0.000 abstract description 12
- 238000009434 installation Methods 0.000 abstract description 11
- 238000001816 cooling Methods 0.000 abstract description 4
- 230000000694 effects Effects 0.000 abstract description 4
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 230000002159 abnormal effect Effects 0.000 description 4
- 230000003014 reinforcing effect Effects 0.000 description 3
- 238000011900 installation process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000009467 reduction Effects 0.000 description 2
- 230000006872 improvement Effects 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000013585 weight reducing agent Substances 0.000 description 1
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- Motor Or Generator Frames (AREA)
Abstract
The utility model provides an outer rotor motor, which comprises a base, wherein the base is in an annular arrangement, and a cavity for accommodating an outer rotor stator is formed in the middle; the outer rotor stator is coaxially arranged in the base; the central rotating shaft passes through the outer rotor stator coaxially; the upper end cover penetrates along one end of the central rotating shaft and is arranged on one side surface of the base; the lower end cover penetrates along the other end of the central rotating shaft and is arranged on one side surface of the base, which is far away from the upper end cover; the peripheral ring of the base extends out of the blade mounting flange along the direction vertical to the central rotating shaft, and the blade mounting flange and the central axial surface of the base are overlapped. The two sides of the base are symmetrically provided with the end cover mounting ends, so that the rapid rotation of the blade is stabilized, and the service life is prolonged; and be provided with the end cover mounting hole on the base, can conveniently follow the dismouting end cover of side, improve installation rate and precision, need not to carry out the purpose alignment when operating personnel installs, can also utilize the structure of both sides installation flabellum, obtain bigger better cooling effect.
Description
Technical Field
The utility model relates to the field of motors, in particular to the technical field of an outer rotor motor, and specifically relates to an outer rotor motor.
Background
The fan blades of the outer rotor industrial cooling fan are arranged on the shell of the motor, and rotate along with the outer rotor, so that the following problems exist:
(1) The unbalanced condition of the fan blade possibly occurs in the installation process, so that the rotor does not run stably, the unbalanced condition can cause the vibration of the motor to be increased, the noise is increased, and the service life and the working efficiency of the motor can be influenced;
(2) When the fan blade is installed, if the fixing bolt or the nut is not screwed up correctly, or is loosened due to vibration and other reasons, the loosened fan blade can loosen, abnormal noise, vibration and performance reduction of the motor can be caused by the loosened fan blade, and the fan blade can rub with other parts;
(3) The wrong installation direction of flabellum probably leads to electric current unstable, motor rotational speed is abnormal, and then influences work efficiency and the life-span of motor, and in addition, the wrong installation direction still can lead to flabellum and surrounding environment to take place unnecessary friction.
Therefore, the outer rotor motor is guided by the problems existing in the prior art, the problems are effectively avoided, and the fan blades of the outer rotor motor can be ensured to work normally only through correct installation and maintenance, so that the efficiency and reliability of the motor are improved.
Disclosure of Invention
In view of the above-mentioned drawbacks of the prior art, an object of the present utility model is to provide an external rotor motor for solving the difficulties of the prior art.
To achieve the above and other related objects, the present utility model provides an external rotor motor comprising:
the base 1 is in an annular arrangement, and a cavity for accommodating the outer rotor stator 2 is formed in the middle of the base 1;
an outer rotor stator 2, wherein the outer rotor stator 2 is coaxially arranged in the base 1;
the central rotating shaft 3 passes through the outer rotor stator 2 coaxially with the central rotating shaft 3;
an upper end cap 4, the upper end cap 4 penetrating along one end of the central rotating shaft 3 and being mounted on one side of the base 1;
the lower end cover 5 penetrates along the other end of the central rotating shaft 3 and is arranged on one side surface of the base 1 far away from the upper end cover 4;
the outer circumference of the base 1 extends out of the blade mounting flange 103 along the direction vertical to the central rotating shaft 3, and the blade mounting flange 103 and the central axial surface of the base 1 are overlapped.
According to a preferred solution, the upper end cover 4, the outer rotor stator 2, the base 1, the lower end cover 5 and the central rotating shaft 3 are all coaxially arranged.
According to a preferred scheme, two ends of the central rotating shaft 3 are correspondingly arranged on the upper end cover 4 and the lower end cover 5 through an upper bearing 6 and a lower bearing 7 respectively.
According to a preferred embodiment, the upper end cap 4 and the lower end cap 5 each comprise:
the end cover body 8 is in a fornix shape, one end of the end cover body 8 far away from the outer rotor stator 2 is in a plane structure, a space for accommodating the outer rotor stator 2 is formed inside the end cover body, and a through hole penetrating through the outer rotor stator 2 is formed in the middle of the end cover body;
the end cover flange 9 is integrally arranged on one side surface of the end cover body 8, which is close to the outer rotor stator 2, and the outer diameter of the end cover flange 9 is larger than that of the end cover body 8;
the end cover mounting holes 10 are formed in a plurality of mode, and the end cover mounting holes 10 are annularly formed in the end cover flange 9 at equal intervals;
a central rotating shaft fixing hole 11, wherein the central rotating shaft fixing hole 11 is formed on the outer peripheral ring of the through hole far away from the outer rotor stator 2, and is concaved from one end of the end cover body 8 far away from the outer rotor stator 2;
the bearing mounting groove 12 is formed on the outer peripheral ring of the through hole close to the outer rotor stator 2, and the bearing mounting groove 12 for accommodating the central rotating shaft 3 and the bearing is formed in a ring shape.
According to a preferred embodiment, the end cap body 8 is integrally provided with a reinforcing rib 13 on one side surface near the outer rotor stator 2.
According to a preferred embodiment, the outer periphery of the end cover flange 9, which is located in the end cover mounting hole 10, is provided with a mounting counterbore 14, and the side of the mounting counterbore 14, which is located away from the center of the end cover body 8, is provided with an opening 15.
According to a preferred scheme, a plurality of circular grooves 16 are formed between the adjacent end cover mounting holes 10 of the end cover flange 9, and openings of the circular grooves 16 are arranged at one side far away from the outer rotor stator 2.
According to a preferred embodiment, a plurality of circular grooves 16 are equally spaced along the arcuate annular array of end cap flanges 9.
According to a preferred embodiment, the base 1 comprises:
a base body 101, wherein the base body 101 is annularly arranged;
the end cover mounting ends 102 are integrally arranged at two axial ends of the base body 101 in an extending mode, and end cover mounting seats 104 with bolt holes in advance are arranged on the end cover mounting ends 102 corresponding to the end cover mounting holes 10;
a blade mounting flange 103, wherein the circumferential direction of the end cover mounting end 102 horizontally extends to form the blade mounting flange 103, and a fan blade mounting seat 105 provided with a bolt hole in advance is arranged on the blade mounting flange 103 corresponding to a mounting hole at the end part of the fan blade;
the fan blade mounting seats 105 are symmetrically arranged on two side surfaces of the fan blade mounting flange 103, and a plurality of fan blade mounting seats 105 are arranged on each side surface of the fan blade mounting flange 103 at equal intervals.
According to a preferred embodiment, the outer diameter of the blade mounting flange 103 is larger than the outer diameter of the end cap mounting end 102.
According to a preferred embodiment, grooves are formed on the blade mounting flange 103 between a plurality of adjacent blade mounting seats 105;
a plurality of adjacent end cap mounts 104 form a recess in the end cap mounting end 102 therebetween.
The two sides of the base are symmetrically provided with the end cover mounting ends, so that the rapid rotation of the blade is stabilized, and the service life is prolonged; and be provided with the end cover mounting hole on the base, can conveniently follow the dismouting end cover of side, improve installation rate and precision, need not to carry out the purpose alignment when operating personnel installs, can also utilize the structure of both sides installation flabellum, obtain bigger better cooling effect.
Preferred embodiments for carrying out the present utility model will be described in more detail below with reference to the attached drawings so that the features and advantages of the present utility model can be easily understood.
Drawings
FIG. 1 shows a perspective exploded view of the present utility model;
FIG. 2 is an enlarged schematic view showing a three-dimensional structure of an end cap according to the present utility model;
FIG. 3 is an enlarged schematic view of another perspective view of the end cap of the present utility model;
FIG. 4 is an enlarged schematic view showing a three-dimensional structure of a base according to the present utility model;
FIG. 5 is an enlarged view of another perspective of the base of the present utility model;
description of the reference numerals
1. The fan comprises a base, 101, a base body, 102, an end cover mounting end, 103, a blade mounting flange, 104, an end cover mounting seat, 105 and a fan blade mounting seat;
2. an outer rotor stator; 3. a central spindle; 4. an upper end cap; 5. a lower end cap; 6. an upper bearing; 7. a lower bearing; 8. an end cap body; 9. an end cap flange; 10. an end cap mounting hole; 11. a central spindle fixing hole; 12. a bearing mounting groove; 13. reinforcing ribs; 14. installing a counter bore; 15. an opening; 16. a plurality of circular grooves.
Detailed Description
In order to make the objects, technical solutions and advantages of the technical solutions of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings of specific embodiments of the present utility model. Like reference numerals in the drawings denote like parts. It should be noted that the described embodiments are some, but not all embodiments of the present utility model. All other embodiments, which can be made by a person skilled in the art without creative efforts, based on the described embodiments of the present utility model fall within the protection scope of the present utility model.
Possible embodiments within the scope of the utility model may have fewer components, have other components not shown in the drawings, different components, differently arranged components or differently connected components, etc. than the examples shown in the drawings. Furthermore, two or more of the elements in the figures may be implemented in a single element or a single element shown in the figures may be implemented as multiple separate elements.
Unless defined otherwise, technical or scientific terms used herein should be given the ordinary meaning as understood by one of ordinary skill in the art to which this utility model belongs. The terms "first," "second," and the like in the description and in the claims, are not used for any order, quantity, or importance, but are used for distinguishing between different elements. Likewise, the terms "a" or "an" and the like do not necessarily denote a limitation of quantity. The word "comprising" or "comprises", and the like, means that elements or items preceding the word are included in the element or item listed after the word and equivalents thereof, but does not exclude other elements or items. The terms "connected" or "connected," and the like, are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.
The utility model provides an outer rotor motor, which is used for the structural design of the outer rotor motor, the type of fan blades is not limited, but the outer rotor motor structure is particularly suitable for hoisting and middle operation.
In general, the outer rotor motor provided by the utility model mainly comprises an upper end cover 4, an outer rotor stator 2, a base 1, a lower end cover 5 and a central rotating shaft 3. Among them, reference can be made to fig. 1, which shows the arrangement relationship of the upper end cover 4, the outer rotor stator 2, the base 1, the lower end cover 5, and the center rotary shaft 3.
In order to achieve the purpose that an outer rotor motor is convenient for accurately installing fan blades and stably rotating, the problems that in the background art, unbalance can occur in the installation process of the fan blades, so that a rotor does not stably operate, the unbalance can cause the motor to vibrate to increase, the noise is increased, and the service life and the working efficiency of the motor can be influenced are solved; when the fan blade is installed, if the fixing bolt or the nut is not screwed up correctly, or is loosened due to vibration and other reasons, the loosened fan blade can loosen, abnormal noise, vibration and performance reduction of the motor can be caused by the loosened fan blade, and the fan blade can rub with other parts; the wrong mounting direction of flabellum can lead to electric current unstable, motor rotational speed is abnormal, and then influences the work efficiency and the life-span of motor, in addition, wrong mounting direction still can lead to flabellum and the problem of the unnecessary friction of surrounding environment emergence, for this reason, among the technical scheme that this embodiment provided, the periphery circle of base 1 extends blade mounting flange 103 along the direction of perpendicular to central pivot 3, utilizes the structural design of blade mounting flange 103, stabilizes the quick rotation of blade, because improvement life.
As shown in fig. 1, in the overall structure, a base 1 is in an annular shape, a cavity for accommodating an outer rotor stator 2 is formed in the middle, a central rotating shaft 3 passes through the outer rotor stator 2 coaxially, two ends of the central rotating shaft 3 are correspondingly arranged on an upper end cover 4 and a lower end cover 5 respectively through an upper bearing 6 and a lower bearing 7, the upper end cover 4 penetrates along one end of the central rotating shaft 3 and is arranged on one side surface of the base 1, and the lower end cover 5 penetrates along the other end of the central rotating shaft 3 and is arranged on one side surface of the base 1 far away from the upper end cover 4; the upper end cover 4 and the lower end cover 5 have the same structure and are symmetrically arranged on two side surfaces of the base 1, and the upper end cover 4, the outer rotor stator 2, the base 1, the lower end cover 5 and the central rotating shaft 3 are coaxially arranged, so that the outer rotor motor is in a stable state in structure, and the two ends of the base 1 are prevented from being additionally influenced by uneven stress in the operation process.
As described above, the upper end cover 4 and the lower end cover 5 are arranged into an integrally formed structure, wherein the end cover body 8 is arranged in a dome shape, the internally arched part is used for accommodating the outer rotor stator 2, the center is provided with a through hole of the outer rotor stator 2 corresponding to the center rotating shaft 3, and one end far away from the outer rotor stator 2 is in a planar structure, so that the occurrence of unstable conditions caused by wind resistance in the operation process is reduced;
further, the end cover flange 9 is integrally formed by extending towards the outer circumference on one side surface of the end cover body 8, which is close to the outer rotor stator 2, namely, the outer diameter of the end cover flange 9 is larger than that of the end cover body 8, then, a plurality of end cover mounting holes 10 are formed on the end cover flange 9 at equal intervals around the circle center and are used for fastening the upper end cover 4 and the lower end cover 5 on the base 1 through bolts;
in addition, in order to enable quick and accurate alignment between a plurality of parts of the motor provided by the embodiment, on one hand, a central rotating shaft fixing hole 11 is formed on the outer peripheral ring of the through hole of the end cover body 8, which is far away from the outer rotor stator 2, and is formed by recessing one end of the end cover body 8, which is far away from the outer rotor stator 2, for locking a through central rotating shaft 3 and the end cover by loading a fastening device, on the other hand, a bearing mounting groove 12 is formed on the outer peripheral ring of the through hole of the end cover body 8, which is near to the outer peripheral ring of the end cover body 8, which is far away from the outer rotor stator 2, and an annular bearing mounting groove 12 for accommodating the central rotating shaft 3 and a bearing is formed.
The structure of the base 1 for rapidly and accurately installing the upper end cover 4, the lower end cover 5, the fan blades and other parts is specifically described, the base body 101 is annularly arranged, the end cover installing ends 102 for installing the upper end cover 4 and the lower end cover 5 are integrally arranged at the two axial ends of the base body 101 in an extending manner, and a plurality of end cover installing holes 10 are formed in the upper end cover 4 and the lower end cover 5 before the base body is installed, so that an end cover installing seat 104 with bolt holes in advance is arranged on the end cover installing ends 102 corresponding to the end cover installing holes 10, and the base body is rapidly installed after the upper end cover 4 and the lower end cover 5 are aligned;
considering the tedious degree of reducing blade installation, for this reason, arrange blade mounting flange 103 between both sides end cover installation end 102, and the external diameter of blade mounting flange 103 is greater than the external diameter of end cover installation end 102, can form the structure of convenient installation in the outside, next, the mounting hole that corresponds the flabellum tip on the blade mounting flange 103 is provided with the flabellum mount pad 105 of seting up bolt hole in advance, in order to make both sides can both install the flabellum, obtain bigger better cooling effect, consequently flabellum mount pad 105 carries out the symmetry setting on the both sides face of blade mounting flange 103, flabellum mount pad 105 equidistant is provided with a plurality ofly on each side face of blade mounting flange 103, according to the flabellum quantity of design.
On the basis, as shown in fig. 4 and 5, grooves are formed on the blade mounting flange 103 between a plurality of adjacent blade mounting seats 105, and grooves are formed on the end cover mounting end 102 between a plurality of adjacent end cover mounting seats 104, so that on one hand, the requirements of corresponding screw thread mounting are met, and on the other hand, the grooves can reduce the weight of the structure and avoid noise generation caused by the weight relation of the structure after lifting and mounting; in addition, as shown in fig. 2, the end cover flange 9 is provided with a plurality of circular grooves 16 between adjacent end cover mounting holes 10, the openings of the plurality of circular grooves 16 are arranged far away from one side of the outer rotor stator 2, the plurality of circular grooves 16 are equally spaced along the arc-shaped annular array of the end cover flange 9, the weight reduction effect can be further achieved, in addition, the end cover body 8 is integrally provided with the reinforcing ribs 13 on one side surface close to the outer rotor stator 2, and the stability and strength of the structure can be effectively ensured.
The above embodiments are merely illustrative of the principles of the present utility model and its effectiveness, and are not intended to limit the utility model. Modifications and variations may be made to the above-described embodiments by those skilled in the art without departing from the spirit and scope of the utility model. Accordingly, it is intended that all equivalent modifications and variations of the utility model be covered by the claims, which are within the ordinary skill of the art, be within the spirit and scope of the present disclosure.
Claims (7)
1. An external rotor motor, comprising:
the base (1) is in annular arrangement, and a cavity for accommodating the outer rotor stator (2) is formed in the middle of the base (1);
an outer rotor stator (2), wherein the outer rotor stator (2) is coaxially arranged in the base (1);
the central rotating shaft (3) passes through the outer rotor stator (2) coaxially;
the upper end cover (4) penetrates along one end of the central rotating shaft (3) and is arranged on one side surface of the base (1);
the lower end cover (5) penetrates along the other end of the central rotating shaft (3) and is arranged on one side surface of the base (1) far away from the upper end cover (4);
the outer peripheral ring of the base (1) extends out of the blade mounting flange (103) along the direction perpendicular to the central rotating shaft (3), and the blade mounting flange (103) and the central axial surface of the base (1) are overlapped.
2. The external rotor motor according to claim 1, wherein two ends of the central rotating shaft (3) are correspondingly arranged on the upper end cover (4) and the lower end cover (5) through an upper bearing (6) and a lower bearing (7) respectively.
3. An external rotor motor according to claim 2, characterized in that the end cap (4) and the lower end cap (5) each comprise:
the end cover body (8), the end cover body (8) is in a fornix shape, one end far away from the outer rotor stator (2) is in a plane structure, a space for accommodating the outer rotor stator (2) is formed inside, and a through hole penetrating through the outer rotor stator (2) is formed in the middle;
the end cover flange (9) is integrally arranged on one side surface of the end cover body (8) close to the outer rotor stator (2), and the outer diameter of the end cover flange (9) is larger than that of the end cover body (8);
the end cover mounting holes (10) are formed in a plurality of end cover mounting holes (10), and the end cover mounting holes (10) are formed in the end cover flange plate (9) at equal intervals in a ring shape;
the central rotating shaft fixing hole (11), the central rotating shaft fixing hole (11) is formed on the peripheral ring of the through hole far away from the outer rotor stator (2) and is concaved from one end of the end cover body (8) far away from the outer rotor stator (2);
the bearing mounting groove (12), the bearing mounting groove (12) is arranged on the periphery circle of the through hole close to the outer rotor stator (2), and the annular bearing mounting groove (12) for accommodating the central rotating shaft (3) and the bearing is formed.
4. An external rotor motor according to claim 3, characterized in that the outer periphery of the end cover flange (9) located in the end cover mounting hole (10) is provided with a mounting counter bore (14), and the side of the mounting counter bore (14) far from the center of the end cover body (8) is provided with an opening (15).
5. The external rotor motor according to claim 4, wherein a plurality of circular grooves (16) are formed between the adjacent end cover mounting holes (10) of the end cover flange plate (9), and openings of the circular grooves (16) are arranged at one side far away from the external rotor stator (2).
6. An external rotor motor according to claim 5, characterized in that the base (1) comprises:
the base comprises a base body (101), wherein the base body (101) is annularly arranged;
the end cover mounting ends (102) are integrally arranged at two axial ends of the base body (101) in an extending mode, and end cover mounting seats (104) with bolt holes in advance are arranged on the end cover mounting ends (102) corresponding to the end cover mounting holes (10);
the blade mounting flange (103) extends horizontally towards the circumferential direction of the end cover mounting end (102) to form the blade mounting flange (103), and a fan blade mounting seat (105) with a pre-arranged bolt hole is arranged on the blade mounting flange (103) corresponding to a mounting hole at the end part of the fan blade;
the fan blade mounting seats (105), the fan blade mounting seats (105) are symmetrically arranged on two side surfaces of the blade mounting flange (103), and a plurality of fan blade mounting seats (105) are arranged on each side surface of the blade mounting flange (103) at equal intervals.
7. The external rotor motor according to claim 6, wherein grooves are formed on the blade mounting flange (103) between the plurality of adjacent blade mounting bases (105);
grooves are formed in the end cap mounting end (102) between a plurality of adjacent end cap mounting seats (104).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321821493.6U CN220692909U (en) | 2023-07-12 | 2023-07-12 | Outer rotor motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321821493.6U CN220692909U (en) | 2023-07-12 | 2023-07-12 | Outer rotor motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220692909U true CN220692909U (en) | 2024-03-29 |
Family
ID=90410130
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321821493.6U Active CN220692909U (en) | 2023-07-12 | 2023-07-12 | Outer rotor motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220692909U (en) |
-
2023
- 2023-07-12 CN CN202321821493.6U patent/CN220692909U/en active Active
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