CN214945075U - Brushless direct current outer rotor centrifugal fan - Google Patents
Brushless direct current outer rotor centrifugal fan Download PDFInfo
- Publication number
- CN214945075U CN214945075U CN202121269327.0U CN202121269327U CN214945075U CN 214945075 U CN214945075 U CN 214945075U CN 202121269327 U CN202121269327 U CN 202121269327U CN 214945075 U CN214945075 U CN 214945075U
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- Prior art keywords
- air duct
- connecting rod
- mounting
- brushless
- brushless motor
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- Expired - Fee Related
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- 238000001816 cooling Methods 0.000 claims abstract description 31
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 44
- 230000000903 blocking effect Effects 0.000 claims description 7
- 239000002826 coolant Substances 0.000 description 5
- 238000009434 installation Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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Abstract
A brushless direct-current outer rotor centrifugal fan comprises a base, an air duct, mounting columns, a rotating rod, blades, mounting blocks, a brushless motor, a rotor and an air duct; the base is provided with a fixed groove; the air duct and the mounting block are both arranged on the base; the lower end of the air duct is positioned in the fixing groove; the brushless motor is arranged on the mounting block, the output end of the brushless motor is connected with the rotor, and the rotor is rotatably arranged in the air duct; the rotating rod is arranged on the rotor and is positioned in the air duct; the blades are arranged in a plurality and are arranged on the mounting column in a surrounding manner; the mounting column is arranged on the rotating rod in a sliding mode and detachably connected with the rotating rod, and the mounting column and the blades are located inside the air duct; the air pipe is arranged at the upper end of the air duct; and a cooling mechanism used for cooling the brushless motor is arranged on the base. The utility model discloses a cooling body cools down brushless motor, prevents that the motor from damaging because of the high temperature.
Description
Technical Field
The utility model relates to a centrifugal fan technical field especially relates to a brushless direct current external rotor centrifugal fan.
Background
When the fan works, airflow axially enters the blade space from the fan, and then rotates along with the impeller under the driving of the impeller; on the other hand, a fan which increases energy by inertia, leaves the impeller in the radial direction, and applies work by the generated centrifugal force is called a centrifugal fan.
Among the prior art, centrifugal fan's motor can produce high temperature after long-time operation, leads to the motor to get into the high temperature protect state, makes the motor shut down, if not in time get into the protect state, then can influence the life of motor.
SUMMERY OF THE UTILITY MODEL
Objects of the invention
For the technical problem who exists among the solution background art, the utility model provides a brushless DC external rotor centrifugal fan cools down brushless motor through cooling body, prevents that the motor from damaging because of the high temperature.
(II) technical scheme
The utility model provides a brushless DC outer rotor centrifugal fan, which comprises a base, an air duct, an installation column, a rotating rod, blades, an installation block, a brushless motor, a rotor and an air duct;
the base is provided with a fixed groove; the air duct and the mounting block are both arranged on the base; the lower end of the air duct is positioned in the fixing groove; the brushless motor is arranged on the mounting block, the output end of the brushless motor is connected with the rotor, and the rotor is rotatably arranged in the air duct; the rotating rod is arranged on the rotor and is positioned in the air duct; the blades are arranged in a plurality and are arranged on the mounting column in a surrounding manner; the mounting column is arranged on the rotating rod in a sliding mode and detachably connected with the rotating rod, and the mounting column and the blades are located inside the air duct; the air pipe is arranged at the upper end of the air duct; and a cooling mechanism used for cooling the brushless motor is arranged on the base.
Preferably, the cooling mechanism comprises a water tank, a water pump and a cooling pipe; the water tank is arranged on the base, the water pump is arranged in the water tank, the output end of the water pump is connected with one end of the cooling pipe, and the cooling pipe is wound on the brushless motor; the other end of the cooling pipe is arranged on the water tank.
Preferably, the water tank is provided with a water inlet hole, a water discharge hole and a blocking cover; the plugging cover is provided with two, and two plugging covers are located inlet opening and drainage hole respectively, two plugging covers and water tank releasable connection.
Preferably, a fixed block is arranged on the brushless motor; the fixing blocks are arranged in a plurality and are connected with the mounting block, and first bolts are arranged on the fixing blocks; the fixed block is connected with the mounting block through a first bolt.
Preferably, the rotating lever includes a support portion and a rotating portion; the supporting part and the rotating part are integrally formed; the supporting part is of a square structure, and the rotating part is of a cylindrical structure; the supporting part and the rotating part are both connected with the mounting column in a sliding manner; the supporting part is clamped with the mounting column.
Preferably, the supporting part is provided with a first mounting groove, a second mounting groove, a first connecting rod and a second connecting rod; the first connecting rod is arranged in the first mounting groove in a sliding manner; the second connecting rod is arranged in the second mounting groove in a sliding mode and is pressed against the first connecting rod; the first connecting rod and the second connecting rod are both abutted to the mounting column.
Preferably, the first connecting rod and the second connecting rod are both provided with second bolts; the second bolt is provided with a plurality ofly, and first connecting rod and second connecting rod are connected with the supporting part through a plurality of second bolts.
Preferably, the air duct is provided with a baffle; the baffle is detachably connected with the air duct.
Compared with the prior art, the above technical scheme of the utility model following profitable technological effect has:
in the utility model, the brushless motor drives the rotor to rotate, the rotor drives the rotating rod to rotate, the rotating rod drives the mounting post to rotate, and the mounting post drives the blade to rotate, so that the outside air is sucked into the air duct, and the compressed air is conveyed to a position to be used through the air duct after being collected, thereby improving the air quantity; the cooling mechanism cools down the fuselage of brushless motor and handles, prevents that brushless motor's temperature from too high, leads to brushless motor to damage, or stop work.
Drawings
Fig. 1 is a schematic structural diagram of a brushless dc outer rotor centrifugal fan according to the present invention.
Fig. 2 is a structural cross-sectional view of a brushless dc outer rotor centrifugal fan according to the present invention.
Fig. 3 is an enlarged view of a portion a in fig. 2.
Reference numerals: 1. a base; 2. an air duct; 3. a baffle plate; 4. mounting a column; 5. rotating the rod; 51. a support portion; 52. a rotating part; 501. a first mounting groove; 502. a second mounting groove; 6. a blade; 7. mounting blocks; 8. a fixed block; 801. a first bolt; 9. a brushless motor; 901. a rotor; 10. a cooling mechanism; 1001. a water tank; 1002. a cooling tube; 111. a first connecting rod; 112. a second connecting rod; 1101. a second bolt; 12. an air duct; 13. and (6) sealing and blocking the cover.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in detail with reference to the accompanying drawings. It should be understood that the description is intended to be illustrative only and is not intended to limit the scope of the present invention. Moreover, in the following description, descriptions of well-known structures and techniques are omitted so as to not unnecessarily obscure the concepts of the present invention.
As shown in fig. 1-3, the brushless dc outer rotor centrifugal fan provided by the present invention comprises a base 1, an air duct 2, a mounting column 4, a rotating rod 5, a blade 6, a mounting block 7, a brushless motor 9, a rotor 901, and an air duct 12;
the base 1 is provided with a fixed groove; the air duct 2 and the mounting block 7 are both arranged on the base 1; the lower end of the air duct 2 is positioned in the fixing groove; the brushless motor 9 is arranged on the mounting block 7, the output end of the brushless motor 9 is connected with the rotor 901, and the rotor 901 is rotatably arranged in the air duct 2; the rotating rod 5 is arranged on the rotor 901, and the rotating rod 5 is positioned inside the air duct 2; the blades 6 are arranged in a plurality, and the blades 6 are arranged on the mounting column 4 in a surrounding manner; the mounting column 4 is arranged on the rotating rod 5 in a sliding mode, the mounting column 4 is detachably connected with the rotating rod 5, and the mounting column 4 and the blades 6 are located inside the air duct 2; the air pipe 12 is arranged at the upper end of the air duct 2; the base 1 is provided with a cooling mechanism 10 for cooling the brushless motor 9.
In an alternative embodiment, cooling mechanism 10 includes a water tank 1001, a water pump, and a cooling pipe 1002; the water tank 1001 is arranged on the base 1, the water pump is arranged in the water tank 1001, the output end of the water pump is connected with one end of the cooling pipe 1002, and the cooling pipe 1002 is wound on the brushless motor 9; the other end of the cooling pipe 1002 is provided on the water tank 1001.
It should be noted that, the water pump pumps out the coolant in water tank 1001 and conveys the coolant to cooling pipe 1002, so that cooling pipe 1002 cools brushless motor 9, and prevents brushless motor 9 from being overheated when continuously rotating, resulting in damage to brushless motor 9.
In an alternative embodiment, the water tank 1001 is provided with a water inlet hole, a water outlet hole and a blocking cover 13; the capping 13 is provided with two, and two capping 13 are located inlet opening and drainage hole respectively, two capping 13 and water tank 1001 releasable connection.
It should be noted that the water inlet hole can fill new coolant into the water tank 1001, and the water outlet hole can discharge waste liquid in the water tank 1001, so that the coolant can be replaced conveniently; the plugging cover 13 is used for plugging the water inlet hole and the water outlet hole to prevent the coolant from flowing out.
In an alternative embodiment, the brushless motor 9 is provided with a fixed block 8; a plurality of fixing blocks 8 are arranged, the fixing blocks 8 are all connected with the mounting block 7, and a first bolt 801 is arranged on each fixing block 8; the fixing block 8 is connected to the mounting block 7 by a first bolt 801.
It should be noted that the brushless motor 9 and the mounting block 7 can be better connected through the fixing block 8, and the fixing block 8 is used for positioning first, and then the first bolt 801 is used for fastening connection.
In an alternative embodiment, the rotating lever 5 comprises a support portion 51 and a rotating portion 52; the support portion 51 and the rotating portion 52 are integrally formed; the supporting part 51 is a square structure, and the rotating part 52 is a cylindrical structure; the supporting part 51 and the rotating part 52 are both connected with the mounting post 4 in a sliding way; the support part 51 is clamped with the mounting post 4.
It should be noted that, the mounting post 4 is limited and clamped by the supporting part 51; the mounting post 4 is supported by the rotating portion 52 so as to be more stable in rotation.
In an alternative embodiment, the supporting portion 51 is provided with a first mounting groove 501, a second mounting groove 502, a first connecting rod 111 and a second connecting rod 112; the first connecting rod 111 is slidably arranged in the first mounting groove 501; the second connecting rod 112 is slidably disposed in the second mounting groove 502, and the second connecting rod 112 is pressed against the first connecting rod 111; the first connecting rod 111 and the second connecting rod 112 are both abutted against the mounting post 4.
It should be noted that, the first connecting rod 111 is snapped into the first mounting groove 501, and the second connecting rod 112 is snapped into the second mounting groove 502, so that the first connecting rod 111 and the second connecting rod 112 limit the mounting post 4 and prevent the mounting post 4 from moving.
In an alternative embodiment, the first connecting rod 111 and the second connecting rod 112 are both provided with a second bolt 1101; the second bolt 1101 is provided in plurality, and the first connection rod 111 and the second connection rod 112 are connected to the support portion 51 by the plurality of second bolts 1101.
In an optional embodiment, the air duct 2 is provided with a baffle 3; the baffle 3 is detachably connected with the air duct 2.
It should be noted that the baffle 3 can better converge the air, and then output the air through the air duct 12, so as to increase the air volume output by the air duct 12.
In the utility model, the brushless motor 9 drives the rotor 901 to rotate, the rotor 901 drives the rotating rod 5 to rotate, the rotating rod 5 drives the mounting post 4 to rotate, the mounting post 4 drives the blade 6 to rotate, thereby sucking the outside air into the wind tube 2, and the compressed air is conveyed to the position to be used through the wind tube 12 after being collected, thereby improving the air quantity; the cooling mechanism 10 cools down the body of the brushless motor 9, and prevents the brushless motor 9 from being damaged or stopped due to an excessively high temperature of the brushless motor 9.
It is to be understood that the above-described embodiments of the present invention are merely illustrative of or explaining the principles of the invention and are not to be construed as limiting the invention. Therefore, any modification, equivalent replacement, improvement and the like made without departing from the spirit and scope of the present invention should be included in the protection scope of the present invention. Further, it is intended that the appended claims cover all such variations and modifications as fall within the scope and boundaries of the appended claims or the equivalents of such scope and boundaries.
Claims (8)
1. A brushless direct-current outer rotor centrifugal fan is characterized by comprising a base (1), an air duct (2), mounting columns (4), a rotating rod (5), blades (6), a mounting block (7), a brushless motor (9), a rotor (901) and an air duct (12);
a fixed groove is arranged on the base (1); the air duct (2) and the mounting block (7) are both arranged on the base (1); the lower end of the air duct (2) is positioned in the fixing groove; the brushless motor (9) is arranged on the mounting block (7), the output end of the brushless motor (9) is connected with the rotor (901), and the rotor (901) is rotatably arranged in the air duct (2); the rotating rod (5) is arranged on the rotor (901), and the rotating rod (5) is positioned in the air duct (2); a plurality of blades (6) are arranged, and the plurality of blades (6) are arranged on the mounting column (4) in a surrounding manner; the mounting column (4) is arranged on the rotating rod (5) in a sliding mode, the mounting column (4) is detachably connected with the rotating rod (5), and the mounting column (4) and the blades (6) are located inside the air duct (2); the air pipe (12) is arranged at the upper end of the air duct (2); the base (1) is provided with a cooling mechanism (10) for cooling the brushless motor (9).
2. A brushless dc outer rotor centrifugal fan according to claim 1, wherein the cooling mechanism (10) comprises a water tank (1001), a water pump and a cooling pipe (1002); the water tank (1001) is arranged on the base (1), the water pump is arranged in the water tank (1001), the output end of the water pump is connected with one end of the cooling pipe (1002), and the cooling pipe (1002) is wound on the brushless motor (9); the other end of the cooling pipe (1002) is provided on the water tank (1001).
3. A brushless dc outer rotor centrifugal fan according to claim 2, wherein the water tank (1001) is provided with a water inlet hole, a water discharge hole and a blocking cover (13); the two blocking covers (13) are arranged, the two blocking covers (13) are respectively positioned in the water inlet hole and the water discharge hole, and the two blocking covers (13) are detachably connected with the water tank (1001).
4. A brushless dc external rotor centrifugal fan according to claim 1, wherein the brushless motor (9) is provided with a fixing block (8); a plurality of fixing blocks (8) are arranged, the fixing blocks (8) are all connected with the mounting block (7), and a first bolt (801) is arranged on each fixing block (8); the fixing block (8) is connected with the mounting block (7) through a first bolt (801).
5. A brushless dc outer rotor centrifugal fan according to claim 1, wherein the rotation lever (5) comprises a support portion (51) and a rotation portion (52); the support part (51) and the rotating part (52) are integrally formed; the supporting part (51) is of a square structure, and the rotating part (52) is of a cylindrical structure; the supporting part (51) and the rotating part (52) are both connected with the mounting column (4) in a sliding way; the supporting part (51) is clamped with the mounting column (4).
6. A brushless DC outer rotor centrifugal fan according to claim 5, characterized in that the support part (51) is provided with a first mounting groove (501), a second mounting groove (502), a first connecting rod (111) and a second connecting rod (112); the first connecting rod (111) is arranged in the first mounting groove (501) in a sliding manner; the second connecting rod (112) is arranged in the second mounting groove (502) in a sliding mode, and the second connecting rod (112) is pressed against the first connecting rod (111); the first connecting rod (111) and the second connecting rod (112) are abutted to the mounting column (4).
7. A brushless DC outer rotor centrifugal fan according to claim 6, characterized in that the first connecting rod (111) and the second connecting rod (112) are provided with a second bolt (1101); the second bolts (1101) are provided in plurality, and the first connecting rod (111) and the second connecting rod (112) are connected to the support (51) by the plurality of second bolts (1101).
8. A brushless dc external rotor centrifugal fan according to claim 1, wherein the wind tunnel (2) is provided with a baffle (3); the baffle (3) is detachably connected with the air duct (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121269327.0U CN214945075U (en) | 2021-06-08 | 2021-06-08 | Brushless direct current outer rotor centrifugal fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121269327.0U CN214945075U (en) | 2021-06-08 | 2021-06-08 | Brushless direct current outer rotor centrifugal fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN214945075U true CN214945075U (en) | 2021-11-30 |
Family
ID=79052188
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121269327.0U Expired - Fee Related CN214945075U (en) | 2021-06-08 | 2021-06-08 | Brushless direct current outer rotor centrifugal fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN214945075U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116094234A (en) * | 2023-04-10 | 2023-05-09 | 常州永瀚电机有限公司 | Energy-saving direct-current brushless centrifugal fan for building ventilation |
-
2021
- 2021-06-08 CN CN202121269327.0U patent/CN214945075U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116094234A (en) * | 2023-04-10 | 2023-05-09 | 常州永瀚电机有限公司 | Energy-saving direct-current brushless centrifugal fan for building ventilation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20211130 |