CN220929701U - Brushless direct current axial fan - Google Patents
Brushless direct current axial fan Download PDFInfo
- Publication number
- CN220929701U CN220929701U CN202322770774.XU CN202322770774U CN220929701U CN 220929701 U CN220929701 U CN 220929701U CN 202322770774 U CN202322770774 U CN 202322770774U CN 220929701 U CN220929701 U CN 220929701U
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- fan
- stator
- cover
- shaft sleeve
- brushless
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- 229910000831 Steel Inorganic materials 0.000 claims abstract description 17
- 239000010959 steel Substances 0.000 claims abstract description 17
- 238000004804 winding Methods 0.000 claims description 6
- 229920001973 fluoroelastomer Polymers 0.000 claims description 5
- 239000004593 Epoxy Substances 0.000 claims description 3
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 claims description 3
- 239000004744 fabric Substances 0.000 claims description 3
- 239000005340 laminated glass Substances 0.000 claims description 3
- 229910052710 silicon Inorganic materials 0.000 claims description 3
- 239000010703 silicon Substances 0.000 claims description 3
- 238000009413 insulation Methods 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 abstract description 2
- 230000002035 prolonged effect Effects 0.000 abstract description 2
- 239000000463 material Substances 0.000 description 3
- 230000004075 alteration Effects 0.000 description 2
- 238000006467 substitution reaction Methods 0.000 description 2
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000009434 installation Methods 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000007769 metal material Substances 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The utility model provides a brushless direct current axial flow fan. The brushless direct current axial flow fan comprises a fan bracket, a control panel, a stator, a magnetic steel assembly body and a main shaft. The fan bracket includes a housing and a sleeve. The housing includes an end cap and a sidewall. And the center of the inner end surface of the end cover extends out of the shaft sleeve. The inner end face of the end cover is also provided with a caulking groove. The side wall is provided with a wire harness leading-out hole. The shaft sleeve is of a hollow circular tube structure. And a bearing mounting groove is formed in the inner wall of the shaft sleeve. The stator is disposed in the interior cavity of the fan bracket. The stator is sleeved on the shaft sleeve. A gap exists between the stator and the control plate. The brushless direct-current axial-flow fan can effectively reduce the volume of a product, increase the space utilization rate, reach the low-current high-air-volume standard as far as possible under the limited volume, and improve the installability of the fan; the wear resistance and the cutting resistance of the wire harness are enhanced, and the mechanical damage is prevented. The wire harness is prevented from being influenced by environmental factors, and the service life of the wire harness is prolonged.
Description
Technical Field
The utility model relates to the technical field of brushless direct current fans, in particular to a brushless direct current axial flow fan.
Background
The brushless DC axial flow fan is a device which uses a brushless DC motor to drive an impeller to rotate, so that gas flows and the pressure of the gas is increased. The brushless direct current axial flow fan is widely applied to the fields of electronic equipment, automobiles, air conditioners and the like. However, the existing brushless direct current axial flow fan has the following defects: the brushless direct current axial flow fan occupies a larger space during installation, and reduces the space utilization rate. The number and length requirements of the wire harnesses of the brushless direct current axial flow fan increase the failure rate and maintenance difficulty of the wire harnesses.
Disclosure of utility model
The utility model aims to provide a brushless direct current axial flow fan so as to solve the problems in the prior art.
The technical scheme adopted for realizing the purpose of the utility model is that the brushless direct current axial flow fan comprises a fan bracket, a control board, a stator, a magnetic steel assembly body and a main shaft.
The fan bracket includes a housing and a sleeve. The housing includes an end cap and a sidewall. And the center of the inner end surface of the end cover extends out of the shaft sleeve. The inner end face of the end cover is also provided with a caulking groove. The side wall is provided with a wire harness leading-out hole. The shaft sleeve is of a hollow circular tube structure. And a bearing mounting groove is formed in the inner wall of the shaft sleeve.
The control board integrates a motor driving module and a controller module. The control panel is installed in the caulking groove. The wire harness of the control panel is led out through the wire harness leading-out hole.
The stator is disposed in the interior cavity of the fan bracket. The stator is sleeved on the shaft sleeve. A gap exists between the stator and the control plate.
The magnetic steel assembly body comprises a fan blade. The fan blade comprises a fan cover and fan blades. The fan cover is integrally of a barrel structure comprising a cover bottom and a cover wall. The fan blades are arranged on the outer wall of the cover wall. The fan cover is characterized in that a connecting hole is formed in the cover bottom of the fan cover, and a magnetic yoke and magnetic steel are bonded in the cover wall.
The magnetic steel assembly is arranged in the inner cavity of the fan bracket. The fan support is connected with the shaft sleeve in a plugging and rotating way through the main shaft. One end of the main shaft is sleeved with the connecting hole of the fan cover, and the other end of the main shaft extends into the shaft sleeve. And two bearings are arranged on the main shaft. The bearing is arranged at the bearing mounting groove position. The stator is accommodated in the inner cavity of the fan cover.
Further, the stator includes a stator core and windings. And a stator groove is formed in the stator core. The windings are embedded in the stator slots.
Further, the wire harness of the control panel is fixed by adopting a high-temperature fluororubber heat-shrinkable tube in a heat shrinkage manner.
Further, an end part of the main shaft extending into one end of the shaft sleeve is provided with an elastic retainer ring for the shaft for limiting axial movement.
Further, an adjusting washer for adjusting the axial clearance is arranged in the bearing mounting groove.
Further, the material of the control panel is an epoxy laminated glass cloth plate. The control plate is mounted in the caulking groove by bonding or screw fastening.
Further, the bearing is a deep groove ball bearing.
Further, the shell and the shaft sleeve are molded into an integral structure.
Further, a heat insulating plate is disposed in a gap between the control plate and the stator.
Further, the control panel and the end cover are coated with heat conduction silicon mud.
The technical effects of the utility model are undoubted: the volume of the product can be effectively reduced, the space utilization rate is increased, the low-current high-air-volume standard is achieved as much as possible under the limited volume, and the installability of the fan is improved; the wear resistance and the cutting resistance of the wire harness are enhanced, and the mechanical damage is prevented. The wire harness is prevented from being influenced by environmental factors, and the service life of the wire harness is prolonged.
Drawings
FIG. 1 is a schematic diagram of a brushless DC axial flow fan;
FIG. 2 is a schematic view of a fan bracket;
fig. 3 is a schematic structural view of a magnetic steel assembly.
In the figure: fan bracket 1, end cover 101, embedded groove 1011, side wall 102, shaft sleeve 103, bearing mounting groove 1031, elastic collar 2 for shaft, control board 3, adjusting washer 4, stator 5, magnetic steel assembly 6, fan blade 601, fan cover 6011, fan blade 6012, bearing 7, high temperature fluororubber heat shrink tube 8, main shaft 9.
Detailed Description
The present utility model is further described below with reference to examples, but it should not be construed that the scope of the above subject matter of the present utility model is limited to the following examples. Various substitutions and alterations are made according to the ordinary skill and familiar means of the art without departing from the technical spirit of the utility model, and all such substitutions and alterations are intended to be included in the scope of the utility model.
Example 1:
Referring to fig. 1, fig. 1a and 1b are different views of a brushless dc axial flow fan. The embodiment provides a brushless direct current axial flow fan, which comprises a fan bracket 1, a control board 3, a stator 5, a magnetic steel assembly 6 and a main shaft 9.
Referring to fig. 2, the fan bracket 1 includes a housing and a sleeve 103. The housing includes an end cap 101 and a side wall 102. The center of the inner end surface of the end cover 101 extends out of the shaft sleeve 103. The inner end surface of the end cover 101 is also provided with a caulking groove 1011. The side wall 102 is provided with a harness lead-out hole 1021. The shaft sleeve 103 is of a hollow circular tube structure. The inner wall of the sleeve 103 is provided with a bearing mounting groove 1031.
The control board 3 integrates a motor driving module and a controller module. The control plate 3 is mounted in the caulking groove 1011. The wire harness of the control panel 3 is fixed by adopting a high-temperature fluororubber heat shrinkage tube 8 in a heat shrinkage manner. The wire harness of the control board 3 is led out through the wire harness leading-out hole 1021.
The stator 5 is arranged in the interior of the fan carrier 1. The stator 5 is sleeved on the shaft sleeve 103. A gap exists between the stator 5 and the control plate 3.
Referring to fig. 3, the magnetic steel assembly 6 includes a fan blade 601. The fan blade 601 includes a fan cover 6011 and fan blades 6012. The fan cover 6011 is integrally a barrel structure including a cover bottom and a cover wall. The fan blade 6012 is arranged on the outer wall of the shroud wall. The bottom of the fan cover 6011 is provided with a connecting hole, and a magnetic yoke and magnetic steel are adhered in the cover wall.
The magnetic steel assembly 6 is arranged in the inner cavity of the fan bracket 1. The fan bracket 1 is connected with the shaft sleeve 103 in a plugging and rotating way through the main shaft 9. One end of the main shaft 9 is sleeved with the connecting hole of the fan cover 6011, and the other end of the main shaft extends into the shaft sleeve 103. The main shaft 9 is provided with two bearings 7. The bearing 7 is a deep groove ball bearing. The bearing 7 is arranged at the position of the bearing mounting groove 1031. The end of the main shaft 9 extending into one end of the shaft sleeve 103 is provided with a circlip 2 for shaft for limiting axial movement. An adjustment washer 4 for adjusting the axial gap is provided in the bearing mounting groove 1031. The stator 5 is accommodated in the inner cavity of the fan cover 6011.
Example 2:
this embodiment is mainly the same as embodiment 1, wherein the stator 5 includes a stator core and windings. And a stator groove is formed in the stator core. The windings are embedded in the stator slots.
Example 3:
the main content of this embodiment is the same as that of embodiment 1 or 2, wherein the material of the control board 3 is an epoxy laminated glass cloth board. The control plate 3 is mounted in the caulking groove 1011 by bonding or screw fastening. The shell is made of nonmetallic materials. The shaft sleeve 103 is made of metal material.
Example 4:
The main content of this embodiment is the same as any one of embodiments 1 to 3, wherein the housing and the shaft sleeve 103 are molded into an integral structure.
Example 5:
This embodiment is mainly the same as any one of embodiments 1 to 4, wherein a heat insulating plate is disposed in a gap between the control plate 3 and the stator 5. The control panel 3 and the end cover 101 are coated with heat conduction silicon mud.
Example 6:
The main content of the embodiment is the same as any one of embodiments 1 to 4, wherein when the brushless direct current axial flow fan is installed, the wire harness on the control panel (3) is required to be fixed by heat shrinkage through the high-temperature fluororubber heat shrinkage tube (8). And the control panel electric assembly (3), the stator (5) and the adjusting washer (4) are respectively arranged in the fan bracket (1). And then the deep groove ball bearing (7) is arranged in the fan bracket (1) and the magnetic steel assembly body (6). Finally, the fan bracket (1) and the magnetic steel assembly body (6) are connected and fastened together by the elastic retainer ring (2) for the shaft.
Claims (10)
1. A brushless direct current axial fan, characterized in that: comprises a fan bracket (1), a control board (3), a stator (5), a magnetic steel assembly (6) and a main shaft (9);
The fan bracket (1) comprises a shell and a shaft sleeve (103); the housing comprises an end cap (101) and a side wall (102); the center of the inner end surface of the end cover (101) extends out of a shaft sleeve (103); the inner end surface of the end cover (101) is also provided with a embedding groove (1011); the side wall (102) is provided with a wire harness leading-out hole (1021); the shaft sleeve (103) is of a hollow circular tube-shaped structure; a bearing mounting groove (1031) is formed in the inner wall of the shaft sleeve (103);
The control board (3) integrates a motor driving module and a controller module; the control board (3) is arranged in the embedded groove (1011); the wire harness of the control board (3) is led out through a wire harness leading-out hole (1021);
The stator (5) is arranged in the inner cavity of the fan bracket (1); the stator (5) is sleeved on the shaft sleeve (103); a gap exists between the stator (5) and the control board (3);
The magnetic steel assembly body (6) comprises a fan blade (601); the fan blade (601) comprises a fan cover (6011) and fan blades (6012); the fan cover (6011) is integrally of a barrel structure comprising a cover bottom and a cover wall; the fan blades (6012) are arranged on the outer wall of the cover wall; the fan cover (6011) is characterized in that a connecting hole is formed in the cover bottom of the fan cover, and a magnetic yoke and magnetic steel are bonded in the cover wall;
The magnetic steel assembly body (6) is arranged in the inner cavity of the fan bracket (1); the fan bracket (1) is connected with the shaft sleeve (103) in a plugging and rotating way through the main shaft (9); one end of the main shaft (9) is sleeved with a connecting hole of the fan cover (6011), and the other end of the main shaft extends into the shaft sleeve (103); two bearings (7) are arranged on the main shaft (9); the bearings are arranged at the positions of the bearing mounting grooves (1031); the stator (5) is accommodated in an inner cavity of the fan cover (6011).
2. A brushless dc axial flow fan according to claim 1, wherein: the stator (5) comprises a stator core and windings; a stator groove is formed in the stator core; the windings are embedded in the stator slots.
3. A brushless dc axial flow fan according to claim 1, wherein: the wire harness of the control panel (3) is fixed by adopting a high-temperature fluororubber heat shrinkage tube (8) in a heat shrinkage manner.
4. A brushless dc axial flow fan according to claim 1, wherein: the end part of the main shaft (9) extending into one end of the shaft sleeve (103) is provided with a circlip (2) for the shaft.
5. A brushless dc axial flow fan according to claim 1, wherein: an adjusting washer (4) is arranged in the bearing mounting groove (1031).
6. A brushless dc axial flow fan according to claim 1, wherein: the control panel (3) is made of epoxy laminated glass cloth; the control plate (3) is mounted in the embedded groove (1011) by bonding or screw fastening.
7. A brushless dc axial flow fan according to claim 1, wherein: the bearing (7) is a deep groove ball bearing.
8. A brushless dc axial flow fan according to claim 1, wherein: the shell and the shaft sleeve (103) are molded into an integral structure.
9. A brushless dc axial flow fan according to claim 1, wherein: a heat insulation plate is arranged in a gap between the control plate (3) and the stator (5).
10. A brushless dc axial flow fan according to claim 1, wherein: and heat-conducting silicon mud is smeared on the control panel (3) and the end cover (101).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322770774.XU CN220929701U (en) | 2023-10-13 | 2023-10-13 | Brushless direct current axial fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322770774.XU CN220929701U (en) | 2023-10-13 | 2023-10-13 | Brushless direct current axial fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220929701U true CN220929701U (en) | 2024-05-10 |
Family
ID=90967478
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322770774.XU Active CN220929701U (en) | 2023-10-13 | 2023-10-13 | Brushless direct current axial fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220929701U (en) |
-
2023
- 2023-10-13 CN CN202322770774.XU patent/CN220929701U/en active Active
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