CN212155221U - Brushless cooling fan assembly of low noise direct current starts rapidly - Google Patents
Brushless cooling fan assembly of low noise direct current starts rapidly Download PDFInfo
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- CN212155221U CN212155221U CN202020651941.2U CN202020651941U CN212155221U CN 212155221 U CN212155221 U CN 212155221U CN 202020651941 U CN202020651941 U CN 202020651941U CN 212155221 U CN212155221 U CN 212155221U
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- fan assembly
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- motor
- uproar
- making
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Abstract
The utility model discloses a start brushless cooling fan assembly of low noise direct current rapidly, which comprises a housin, end ring flange department is fixed with the fin in the casing, the inner fixed surface of fin has the shell of making an uproar of falling, it has the motor to fall the shell internal fixation of making an uproar, the drive shaft of motor is equipped with the flabellum outward, the external fixed surface of the shell of making an uproar of falling has the enclosing cover, the back of enclosing cover and the interior side surface of the shell of making an uproar of falling are equipped with the puigging, establish to the reducing curved surface the rear side of fin, fall the shell of making an uproar through the motor assembly in, and the during operation noise abatement sends, and its outside fin rear side sets up to reducing curved surface structure simultaneously, and.
Description
Technical Field
The utility model relates to a cooling fan field, more specifically say, relate to a start brushless cooling fan assembly of low noise direct current rapidly.
Background
The cooling fan is a device for radiating heat of heating equipment and machinery, and can carry away heat for heat radiation by accelerating airflow flow;
in the existing cooling fan, when a motor works, a rotor in the motor rotates fast, noise can not be avoided greatly, meanwhile, the existing cooling fan is additionally provided with a circle of radiating fins, the heat of the radiating fins can be taken away when air flow passes through the cooling fan, cooling is accelerated, the existing radiating fins have a single structure, the air flow collides with the existing cooling fan when passing through the cooling fan fast, and the noise is high when the air flow passes through the cooling fan.
SUMMERY OF THE UTILITY MODEL
To the problem that exists among the prior art, the utility model aims to provide a start rapid low noise direct current brushless cooling fan assembly, through the motor assembly in falling the shell of making an uproar, the during operation noise abatement sends, and its outside fin rear side sets up to reducing curved surface structure simultaneously, and the circulation of air can guide through the time, reduces the collision area, noise reduction.
In order to solve the above problems, the utility model adopts the following technical proposal.
The utility model provides a start brushless cooling fan assembly of quick low noise direct current, includes the casing, end ring flange department is fixed with the fin in the casing, the inner fixed surface of fin has the shell of making an uproar of falling, it has the motor to fall the shell internal fixation of making an uproar, the drive shaft of motor is equipped with the flabellum outward, the external fixed surface of the shell of making an uproar of falling is equipped with the enclosing cover, the back of enclosing cover and the inboard surface of the shell of making an uproar of falling are equipped with the puigging, the rear side of fin is established to the reducing curved surface, and in the shell of making an uproar of falling through the motor assembly, the during operation noise abatement sends, and its outside fin rear side sets up to reducing.
Furthermore, the radiating fins are uniformly distributed on the inner side surface of the circle of the shell and are made of aluminum, so that heat can be absorbed quickly, and the radiating effect is improved.
Furthermore, the inner end of the noise reduction shell is provided with an inner ring seat, and the motor is fixed on the inner ring seat through a first screw, so that the motor is convenient to assemble and support.
Furthermore, the outer cover is sleeved outside a driving shaft of the motor and fixed on the outer surface of the noise reduction shell through a second screw, and the outer cover is convenient to block the opening of the noise reduction shell.
Furthermore, four corners of the outer surface of the shell are provided with mounting holes, so that the shell is convenient to assemble.
Compared with the prior art, the utility model has the advantages of:
(1) the noise is reduced during working by assembling the motor in the noise reduction shell, and the rear side of the external radiating fin is of a variable-diameter curved surface structure, so that air flow can be guided during passing, the collision area is reduced, and the noise is reduced.
(2) The radiating fins are uniformly distributed on the inner side surface of the circle of the shell and are made of aluminum, so that heat can be absorbed quickly, and the radiating effect is improved.
(3) The inner end of the noise reduction shell is provided with an inner ring seat, and the motor is fixed on the inner ring seat through a first screw, so that the motor is convenient to assemble and support.
(4) The enclosing cover is sleeved outside the driving shaft of the motor and fixed on the outer surface of the noise reduction shell through the second screw, and the opening of the noise reduction shell is convenient to plug by the enclosing cover.
(5) Four corners of the outer surface of the shell are provided with mounting holes, so that the shell is convenient to assemble.
Drawings
Fig. 1 is a schematic view of the overall structure of the present invention;
FIG. 2 is a right side sectional view of the overall structure of the present invention;
FIG. 3 is a top view of the partial structure of the heat sink of the present invention;
fig. 4 is a side view of the outer cover of the present invention.
The reference numbers in the figures illustrate:
the fan comprises a shell 1, radiating fins 2, a noise reduction shell 3, a motor 4, fan blades 40, an outer cover 5, a sound insulation layer 30, a variable diameter curved surface 20, an inner ring seat 31, a first screw 100 and a second screw 101.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
In the description of the present invention, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted", "provided", "sleeved/connected", "connected", and the like are to be understood in a broad sense, such as "connected", which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present invention can be understood in specific cases to those skilled in the art.
Referring to fig. 1-4, a dc brushless cooling fan assembly with fast start and low noise comprises a housing 1, a heat sink 2 is fixed at a circular flange at the inner end of the housing 1, a noise reduction housing 3 is fixed on the surface of the inner end of the heat sink 2, a motor 4 (using a dc brushless motor, prior art) is fixed in the noise reduction housing 3, a fan blade 40 is arranged outside a driving shaft of the motor 4, an outer cover 5 is fixed on the outer surface of the noise reduction housing 3, a sound insulation layer 30 is arranged on the back of the outer cover 5 and the inner side surface of the noise reduction housing 3, and the rear side of the heat sink 2 is a variable diameter curved surface.
Referring to fig. 1-4, the heat dissipation fins 2 are uniformly distributed on the inner surface of the casing 1, the heat dissipation fins 2 are made of aluminum, and can absorb heat quickly and improve the heat dissipation effect, the inner end of the noise reduction casing 3 is provided with an inner ring seat 31, the motor 4 is fixed on the inner ring seat 31 through a first screw 100, so that the motor 4 can be assembled and supported conveniently, the outer cover 5 is sleeved outside the driving shaft of the motor 4 and fixed on the outer surface of the noise reduction casing 3 through a second screw 101, the outer cover 5 is convenient to block the opening of the noise reduction casing 3, and four corners of the outer surface of the casing 1 are provided with mounting holes.
In use, the motor 4 is mounted on the inner ring seat 31 of the noise reduction housing 3 through the first screw 100, meanwhile, the outer cover 5 is sleeved outside the driving shaft of the motor 4 and is fixed on the outer surface of the noise reduction shell 3 through a second screw 101, the outer cover 5 is convenient to block the opening of the noise reduction shell 3, the sound insulation layer 30 is arranged on the back surface of the outer cover 5 and the inner side surface of the noise reduction shell 3, the motor 4 can insulate sound through the sound insulation layer 30 (sound insulation sponge material) when working, the noise reduction effect can be improved, when the fan blades 40 rotate, the airflow can be extracted for heat dissipation, and is uniformly distributed on the inner side surface of the circle of the shell 1 through the heat dissipation fins 2, the heat dissipation fins 2 are made of aluminum, can absorb heat quickly and improve the heat dissipation effect, and meanwhile, the rear side of the radiating fin 2 is provided with a reducing curved surface 20, when the airflow rapidly passes through the gap between the radiating fins 2, the airflow can be guided through the reducing curved surface 20, so that the airflow collision area is reduced, and the noise is reduced.
The above description is only the preferred embodiment of the present invention; the scope of the present invention is not limited thereto. Any person skilled in the art should also be able to cover the technical scope of the present invention by replacing or changing the technical solution and the improvement concept of the present invention with equivalents and modifications within the technical scope of the present invention.
Claims (5)
1. A brushless cooling fan assembly of quick low noise direct current of start, includes casing (1), its characterized in that: the utility model discloses a housing for a motor vehicle, including casing (1), inner ring flange department is fixed with fin (2), the inner fixed surface of fin (2) has the casing of making an uproar (3) of falling, it has motor (4) to fall the casing (3) internal fixation of making an uproar, the drive shaft of motor (4) is equipped with flabellum (40) outward, the external fixed surface of the casing of making an uproar (3) of falling has enclosing cover (5), the back of enclosing cover (5) and the inboard surface of the casing of making an uproar (3) of falling are equipped with puigging (30), the rear side of fin (2) is established.
2. The brushless dc cooling fan assembly of claim 1, wherein the fan assembly comprises: the radiating fins (2) are uniformly distributed on the inner side surface of the circle of the shell (1), and the radiating fins (2) are made of aluminum.
3. The brushless dc cooling fan assembly of claim 1, wherein the fan assembly comprises: the inner end of the noise reduction shell (3) is provided with an inner ring seat (31), and the motor (4) is fixed on the inner ring seat (31) through a first screw (100).
4. The brushless dc cooling fan assembly of claim 1, wherein the fan assembly comprises: the outer cover (5) is sleeved outside a driving shaft of the motor (4) and fixed on the outer surface of the noise reduction shell (3) through a second screw (101).
5. The brushless dc cooling fan assembly of claim 1, wherein the fan assembly comprises: four corners of the outer surface of the shell (1) are provided with mounting holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020651941.2U CN212155221U (en) | 2020-04-26 | 2020-04-26 | Brushless cooling fan assembly of low noise direct current starts rapidly |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202020651941.2U CN212155221U (en) | 2020-04-26 | 2020-04-26 | Brushless cooling fan assembly of low noise direct current starts rapidly |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212155221U true CN212155221U (en) | 2020-12-15 |
Family
ID=73723920
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202020651941.2U Active CN212155221U (en) | 2020-04-26 | 2020-04-26 | Brushless cooling fan assembly of low noise direct current starts rapidly |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212155221U (en) |
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2020
- 2020-04-26 CN CN202020651941.2U patent/CN212155221U/en active Active
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