CN220775514U - Brushless DC motor - Google Patents
Brushless DC motor Download PDFInfo
- Publication number
- CN220775514U CN220775514U CN202322458691.7U CN202322458691U CN220775514U CN 220775514 U CN220775514 U CN 220775514U CN 202322458691 U CN202322458691 U CN 202322458691U CN 220775514 U CN220775514 U CN 220775514U
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- CN
- China
- Prior art keywords
- shell
- fixed
- brushless
- motor
- rotating shell
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- 238000004804 winding Methods 0.000 claims abstract description 10
- 230000005284 excitation Effects 0.000 claims abstract description 4
- 238000009434 installation Methods 0.000 abstract description 6
- 241000883990 Flabellum Species 0.000 description 3
- 235000017166 Bambusa arundinacea Nutrition 0.000 description 2
- 235000017491 Bambusa tulda Nutrition 0.000 description 2
- 241001330002 Bambuseae Species 0.000 description 2
- 235000015334 Phyllostachys viridis Nutrition 0.000 description 2
- 239000011425 bamboo Substances 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 229910000976 Electrical steel Inorganic materials 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000004080 punching Methods 0.000 description 1
Abstract
The utility model relates to the technical field of brushless direct current motors, and discloses a brushless direct current motor which comprises a rotating shell, wherein a plurality of permanent magnet poles are fixed on the annular array of the inner side wall of the rotating shell, an inner stator which is wound with an excitation winding is arranged in the rotating shell, a shaft rod is fixed at the center of the inner stator, bearings are fixed at two ends of the shaft rod, a shell end cover is arranged at one end of the rotating shell, the bearings are arranged in a shell formed by the rotating shell and the shell end cover, two side plates are connected with the surface of the rotating shell in a sliding manner, and a fixing assembly is connected between the two side plates. The brushless direct current motor provided by the utility model is provided with the side plate and the fixing component, so that the fan blade can be directly and rapidly fixed, the operation is convenient, and meanwhile, the shaft sleeve of the fan blade is directly fixed on the surface of the rotating shell of the brushless direct current motor, so that the installation space is further reduced, and the assembled fan can be thinner.
Description
Technical Field
The utility model relates to the technical field of brushless direct current motors, in particular to a brushless direct current motor.
Background
A brushless dc motor is a main type of motor, and its basic structure is to include a stator having a pair of stator teeth, each of which is wound with a winding, a rotor having a pair of magnetic poles, and a rotating shaft fixed at the center of the rotor. The brushless DC motor operates on the principle that a driving current is applied to the windings to change phases according to a set period, and a changing magnetic field is generated between the stator teeth and the rotor magnetic poles, so that an electromagnetic moment is generated on the rotor to drive the rotor to rotate. The variety of dc motors is varied, and in particular, external rotor brushless dc motors are widely used in the field of fans because they can be designed in a relatively flat form.
However, the existing external rotor brushless direct current motor is inconvenient to install the fan blades, and the fan blades of the fan cannot be fixed on the rotating shell of the external rotor brushless direct current motor, so that the efficiency is low when the fan is assembled.
Disclosure of Invention
The utility model aims to solve the defects in the prior art and provides a brushless direct current motor.
In order to achieve the above purpose, the present utility model adopts the following technical scheme: the utility model provides a brushless DC motor, includes the rotation shell, the inside wall annular array of rotation shell is fixed with a plurality of permanent magnet magnetic poles, the inside of rotation shell is provided with winding exciting winding's interior stator, the center department of interior stator is fixed with the axostylus axostyle, the both ends of axostylus axostyle are fixed with the bearing, the one end of rotation shell is provided with the shell end cover, the bearing is installed in the inside casing that rotation shell and shell end cover formed, the surface sliding connection of rotation shell has two curb plates, two be connected with fixed subassembly between the curb plate, the curb plate is used for centre gripping fan flabellum axle sleeve under fixed subassembly's cooperation.
As a further description of the above scheme:
a plurality of internal thread grooves are formed in one end of the rotating shell, a plurality of fixing bolts are arranged on the surface of the shell end cover, the fixing bolts are in threaded connection with the internal thread grooves, and the fixing bolts protrude out of the edge of the rotating shell in a mounting and fixing mode, so that the shaft sleeve of the fan blade can be directly sleeved on the surface of the rotating shell, and the mounting is convenient.
As a further description of the above scheme:
one end of the shaft lever is fixedly provided with an installation fixing seat, so that the brushless direct current motor can be integrally installed.
As a further description of the above scheme:
the surface of the rotary shell is uniformly provided with a plurality of grooves, and the two side plates are in sliding connection with the grooves, so that the shaft sleeve of the fan blade with different widths can be conveniently clamped and fixed.
As a further description of the above scheme:
the section of the groove is in a T-shaped structure, so that the stability of the side plate is improved.
As a further description of the above scheme:
the fixing component comprises an internal thread cylinder fixed on one side plate, an opening is formed in the surface of the other side plate, a fixing screw is connected with the internal thread of the internal thread cylinder in a threaded manner, and one end of the fixing screw penetrates through the opening and is fixed with a rotary end head so as to achieve clamping and fixing.
As a further description of the above scheme:
two adjacent both sides of curb plate all are fixed with the rubber pad, and the rubber pad has the effect of increase friction, has improved the stability of the fixed fan blade axle sleeve of centre gripping, can protect the axle sleeve of fan blade to avoid damaging simultaneously.
The utility model has the following beneficial effects:
1. the brushless direct current motor provided by the utility model is provided with the side plate and the fixing component, so that fan blades can be directly and rapidly fixed, the operation is convenient, and meanwhile, the shaft sleeve of the fan blades is directly fixed on the surface of the rotating shell of the brushless direct current motor, so that the installation space is further reduced, and the assembled fan can be thinner;
2. according to the utility model, the fixing bolt for fixing the end cover of the housing is positioned at one end of the rotating housing, so that the outer surface of the rotating housing is not obstructed, and the shaft sleeve of the fan blade is conveniently sleeved on the surface of the rotating housing for installation.
Drawings
Fig. 1 is a perspective view of a brushless dc motor according to the present utility model;
fig. 2 is a perspective view of a brushless dc motor according to the present utility model with side plates removed;
FIG. 3 is a partial cross-sectional view of a brushless DC motor according to the present utility model;
fig. 4 is a state diagram of a brushless dc motor according to the present utility model when fan blades are mounted.
Legend description:
1. rotating the housing; 2. installing a fixing seat; 3. slotting; 4. a shaft lever; 5. an inner stator; 6. permanent magnet poles; 7. a housing end cap; 8. an internal thread groove; 9. a fixing bolt; 10. an internal thread cylinder; 11. a fixed screw; 12. rotating the end head; 13. a side plate; 14. and (3) a bearing.
Detailed Description
The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
Referring to fig. 1-4, one embodiment provided by the present utility model is: the utility model provides a brushless DC motor, including rotating shell 1, the inside wall annular array of rotating shell 1 is fixed with a plurality of permanent magnet magnetic poles 6, the inside of rotating shell 1 is provided with the interior stator 5 of winding excitation winding, interior stator 5 is folded by a plurality of silicon steel sheets of punching, in order to save material interior stator 5 center is hollow, interior stator frame of interior stator 5 internally mounted is as the support, the center department of interior stator 5 is fixed with axostylus axostyle 4, axostylus axostyle 4 is fixed with the center department of interior stator frame, the both ends of axostylus axostyle 4 are fixed with bearing 14, when the circular telegram, permanent magnet magnetic pole 6 rotates along interior stator 5 of winding excitation winding, rotate more smooth under the auxiliary effect of bearing 14, thereby make rotating shell 1 realize rotating, the one end of axostylus axostyle 4 is fixed with the installation fixing base 2, be convenient for carry out the integral erection to brushless DC motor.
The one end of rotating shell 1 is provided with shell end cover 7, bearing 14 installs in the inside of the casing that rotating shell 1 and shell end cover 7 formed, the surface sliding connection of rotating shell 1 has two curb plates 13, be connected with fixed subassembly between two curb plates 13, curb plate 13 is used for centre gripping fan flabellum axle sleeve under fixed subassembly's cooperation, a plurality of internal thread grooves 8 have been seted up to the one end of rotating shell 1, the surface of shell end cover 7 is provided with a plurality of fixing bolt 9, fixing bolt 9 and internal thread groove 8 threaded connection, this kind of installation fixed mode makes fixing bolt 9 outstanding at the edge of rotating shell 1, so that the axle sleeve of fan flabellum can directly overlap at the surface of rotating shell 1, easy to assemble, fixed subassembly is including fixing the internal thread section of thick bamboo 10 on one of them curb plate 13, the trompil has been seted up on the surface of opposite side curb plate 13, the internal thread connection of internal thread section of thick bamboo 10 has fixing screw 11, the one end of fixing screw 11 passes the trompil and is fixed with rotatory end 12, in order to realize centre gripping fixedly.
The surface of the rotary shell 1 is uniformly provided with a plurality of grooves 3, two side plates 13 are in sliding connection with the grooves 3, the shaft sleeves of fan blades with different widths are conveniently clamped and fixed, the cross section of each groove 3 is in a T-shaped structure, the stability of the side plates 13 is improved, rubber pads are fixed on two adjacent sides of the two side plates 13, the rubber pads have the function of increasing friction, the stability of the shaft sleeves of the fan blades is improved, and the shaft sleeves of the fan blades can be protected from damage.
When specifically installing fan blades, firstly, the side plate 13 and the fixing components of the brushless direct current motor shown in fig. 1 are taken down to be in the shape shown in fig. 2, then the shaft sleeve of the fan blades is sleeved on the outer surface of the rotary shell 1, then the side plates 13 are slidably installed on two sides of the shaft sleeve of the fan blades, the number of the fixing components is multiple, the fixing components can be consistent with that of the fan blades, the fixing components can be respectively fixed between every two adjacent fan blades, and when the fixing components are fixed, the fixing components can be fixed only by inserting the fixing screw 11 into the internal thread cylinder 10 and screwing.
Finally, it should be noted that: the foregoing description is only illustrative of the preferred embodiments of the present utility model, and although the present utility model has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments described, or equivalents may be substituted for elements thereof, and any modifications, equivalents, improvements or changes may be made without departing from the spirit and principles of the present utility model.
Claims (7)
1. A brushless dc motor comprising a rotating housing (1), characterized in that: the inner side wall annular array of the rotating shell (1) is fixedly provided with a plurality of permanent magnet magnetic poles (6), the inside of the rotating shell (1) is provided with an inner stator (5) wound with an excitation winding, a shaft lever (4) is fixed at the center of the inner stator (5), bearings (14) are fixed at two ends of the shaft lever (4), a shell end cover (7) is arranged at one end of the rotating shell (1), the bearings (14) are arranged inside a shell formed by the rotating shell (1) and the shell end cover (7), the surface of the rotating shell (1) is slidably connected with two side plates (13), a fixing assembly is connected between the two side plates (13), and the side plates (13) are used for clamping fan blade sleeves under the cooperation of the fixing assembly.
2. A brushless dc motor as claimed in claim 1, wherein: a plurality of internal thread grooves (8) are formed in one end of the rotary shell (1), a plurality of fixing bolts (9) are arranged on the surface of the shell end cover (7), and the fixing bolts (9) are in threaded connection with the internal thread grooves (8).
3. A brushless dc motor as claimed in claim 1, wherein: one end of the shaft lever (4) is fixed with a mounting fixing seat (2).
4. A brushless dc motor as claimed in claim 1, wherein: the surface of the rotary shell (1) is uniformly provided with a plurality of grooves (3), and two side plates (13) are both in sliding connection with the grooves (3).
5. A brushless dc motor as defined in claim 4, wherein: the section of the slot (3) is T-shaped.
6. A brushless dc motor as claimed in claim 1, wherein: the fixing assembly comprises an internal thread cylinder (10) fixed on one side plate (13), an opening is formed in the surface of the other side plate (13), a fixing screw (11) is connected with the internal thread of the internal thread cylinder (10), and one end of the fixing screw (11) penetrates through the opening and is fixed with a rotary end head (12).
7. A brushless dc motor as claimed in claim 1, wherein: rubber pads are fixed on two adjacent sides of the two side plates (13).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322458691.7U CN220775514U (en) | 2023-09-11 | 2023-09-11 | Brushless DC motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322458691.7U CN220775514U (en) | 2023-09-11 | 2023-09-11 | Brushless DC motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220775514U true CN220775514U (en) | 2024-04-12 |
Family
ID=90609881
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322458691.7U Active CN220775514U (en) | 2023-09-11 | 2023-09-11 | Brushless DC motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220775514U (en) |
-
2023
- 2023-09-11 CN CN202322458691.7U patent/CN220775514U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |