CN117685240A - Outer rotor centrifugal fan with high protection level - Google Patents
Outer rotor centrifugal fan with high protection level Download PDFInfo
- Publication number
- CN117685240A CN117685240A CN202311705120.7A CN202311705120A CN117685240A CN 117685240 A CN117685240 A CN 117685240A CN 202311705120 A CN202311705120 A CN 202311705120A CN 117685240 A CN117685240 A CN 117685240A
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- CN
- China
- Prior art keywords
- outer rotor
- fan blade
- blade structure
- rotor motor
- centrifugal fan
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- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 230000003373 anti-fouling effect Effects 0.000 claims abstract description 42
- 230000000903 blocking effect Effects 0.000 claims abstract description 6
- 210000001503 joint Anatomy 0.000 abstract 1
- 238000005406 washing Methods 0.000 abstract 1
- 238000003754 machining Methods 0.000 description 6
- 238000009434 installation Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 2
- 230000017525 heat dissipation Effects 0.000 description 2
- 238000003801 milling Methods 0.000 description 2
- 241000883990 Flabellum Species 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004140 cleaning Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000012634 fragment Substances 0.000 description 1
- 238000012423 maintenance Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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- Structures Of Non-Positive Displacement Pumps (AREA)
Abstract
The application relates to an outer rotor centrifugal fan with high protection level, which comprises a fan blade structure, wherein a sunken mounting groove is arranged at the center of one end face, and a mounting hole is arranged at the center of the mounting groove; the outer rotor motor is used for driving the fan blade structure to rotate; one end of the main shaft is detachably connected with the mounting hole, and the other end of the main shaft is in driving connection with the outer rotor motor; the anti-fouling shell is arranged outside the outer rotor motor and is provided with a through hole for the spindle to pass through; the anti-pollution cover is arranged on the outer ring of the anti-pollution shell and used for blocking a gap between the outer rotor motor and the fan blade structure so as to prevent oil stains from dripping into the gap between the outer rotor motor and the fan blade structure. This application disposable has solved the greasy dirt and has immersed centrifugal fan inside easily and the greasy dirt butt joint problem at the fan blade week side, but also can make things convenient for the dismantlement of fan blade structure, convenient washing and change.
Description
Technical Field
The application relates to a centrifugal fan, in particular to an outer rotor centrifugal fan with high protection level.
Background
CNC machining generally refers to computer numerically controlled precision machining, CNC machining lathes, CNC machining milling machines, CNC machining boring and milling machines, and the like. At present, a great number of spindle servo motors are needed in a CNC machining center, and correspondingly, a great number of centrifugal fans are needed for heat dissipation. In CNC machining center, centrifugal fan or similar fan (like my prior patent CN 209458161U) is installed and used in an inverted mode and is difficult to dismantle the motor and clean, namely the motor rotor is inserted into the mounting groove of the fan blade structure from top to bottom (the structure of the outer rotor motor is formed by the motor and the fan blade structure), the fan blade structure faces downwards (because the fan blade structure is provided with an air outlet on the downward face, if the fan blade structure is reversely arranged, the heat dissipation effect cannot be achieved, and oil stains can enter the fan blade structure more easily), and in general CNC machining center can generate quite much oil stains and metal fragments during machining, so that the efficiency and the service life of the centrifugal fan are greatly reduced, and frequent maintenance and replacement are needed.
Therefore, there is a need for an outer rotor centrifugal fan with a high protection level, which can significantly improve the service life of the centrifugal fan, so as to solve the problems existing in the prior art.
Disclosure of Invention
The purpose of the present application is to provide an outer rotor centrifugal fan with high protection level, aiming at the problems existing in the prior art.
In order to achieve the purpose of the application, the application adopts the following technical scheme: an outer rotor centrifugal fan with high protection level comprises:
a fan blade structure, wherein a concave mounting groove is arranged at the center of one end face, and a mounting hole is arranged at the center of the mounting groove;
the outer rotor motor is used for driving the fan blade structure to rotate;
one end of the main shaft is detachably connected with the mounting hole, and the other end of the main shaft is in driving connection with the outer rotor motor;
the anti-fouling shell is arranged outside the outer rotor motor and is provided with a through hole for the spindle to pass through;
the anti-pollution cover is arranged on the outer ring of the anti-pollution shell and used for blocking a gap between the outer rotor motor and the fan blade structure so as to prevent oil stains from dripping into the gap between the outer rotor motor and the fan blade structure.
Working principle and beneficial effect: compared with the prior art, the outer rotor motor and the fan blade structure are separated, connection of the outer rotor motor and the fan blade structure is achieved through the main shaft, and therefore the outer rotor motor and the fan blade structure can be conveniently detached, and cleaning and replacement are facilitated. And secondly, the outer rotor motor is also provided with an anti-fouling shell, so that oil stains can be well prevented from entering the outer rotor motor, and the service life and efficiency of the outer rotor motor are obviously improved. Finally, the gap between the outer rotor motor and the fan blade structure is blocked by the arrangement of the anti-fouling cover, so that oil stains are prevented from dripping into the gap between the outer rotor motor and the fan blade structure, and the problems in the prior art are thoroughly solved.
Further, the dirt shield is disposed parallel to the end face of the fan blade structure. Therefore, the oil stain can be effectively blocked, the function of blocking the oil stain is realized by a very simple structure, the processing difficulty is low, and the realization difficulty is low.
Further, one end of the main shaft is connected with the mounting hole through the nut and the fixing plate, the other end of the main shaft is used as a motor shaft of the outer rotor motor, and a through hole for mounting the nut is formed in one end face, far away from the mounting groove, of the fan blade structure. Therefore, the spindle can be conveniently arranged on the fan blade structure, complex operation is not needed, and the technical threshold is low.
Further, an anti-fouling cover is arranged on the anti-fouling shell and is detachably connected with the anti-fouling shell so as to seal the outer rotor motor. Therefore, the anti-fouling shell and the anti-fouling cover can be conveniently disassembled, the inner outer rotor motor can be conveniently disassembled, and the outer rotor motor can be effectively protected.
Further, a wire fixing block is arranged on the anti-fouling cover. Therefore, the wires can be conveniently fixed, the wire falling off condition occurs, and the fault occurrence is reduced.
Further, the edge of the dirt shield is provided with a flange which is arranged towards the fan blade structure. The arrangement of the flange not only can increase the structural strength of the anti-fouling cover, but also can play a certain role in blocking and prevent greasy dirt from entering from the side face.
Further, the diameter of the dirt shield is greater than or equal to the fan blade structure. Therefore, the direct dripping of the greasy dirt on the fan blade structure can be effectively prevented.
Further, a connecting step is arranged at one end of the main shaft, which is connected with the mounting hole, and a hole matched with the connecting step is arranged on the fixing plate. Therefore, the main shaft and the fan blade structure can be coaxially and rotatably connected, namely, the main shaft can drive the fan blade structure to rotate.
Further, a bearing is arranged between the anti-fouling shell and the main shaft. Therefore, the smooth rotation degree of the main shaft can be improved, and the bearing can also play a certain role in preventing oil stains.
Further, a protruding portion is arranged on one end face, facing the bearing, of the outer rotor motor, and the protruding portion is abutted with the bearing. Thus, the bearing can be conveniently supported and positioned, thereby facilitating the installation of the bearing.
Drawings
FIG. 1 is an exploded view of the present application;
FIG. 2 is an exploded view of the second embodiment;
FIG. 3 is a perspective view of the present application;
FIG. 4 is another view of FIG. 3;
FIG. 5 is an internal block diagram of the present application;
fig. 6 is an internal structural view of another embodiment of the present application.
In the figure, 1, a fan blade structure; 2. an outer rotor motor; 3. a main shaft; 4. a nut; 5. a fixing plate; 6. an anti-fouling shell; 7. an anti-fouling cover; 8. an anti-fouling cover; 9. a wire fixing block; 10. a bearing; 11. a mounting groove; 12. a mounting hole; 13. an air outlet hole; 31. and connecting the steps.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments obtained by a person of ordinary skill in the art based on the embodiments in the present application are within the scope of the protection of the present application.
It will be appreciated by those skilled in the art that in the present disclosure, the terms "longitudinal," "transverse," "up," "down," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," etc. refer to an orientation or positional relationship based on that shown in the drawings, which is merely for convenience of description and to simplify the description, and do not refer to or imply that the devices or elements referred to must have a particular orientation, be configured and operated in a particular orientation, and thus the above terms should not be construed as limiting the present application.
As shown in fig. 1 to 5, the outer rotor centrifugal fan with high protection level comprises:
the fan blade structure 1 is characterized in that a sunken mounting groove 11 is formed in the center of one end face of the fan blade structure, and a mounting hole 12 is formed in the center of the mounting groove 11;
in this embodiment, compared with the prior art, the fan blade structure 1 is improved in that the original structure for installing the motor is changed into a conical installation groove 11, and an installation hole 12 is arranged at the bottom of the installation groove 11, so that the conical structure of the installation groove 11 can also play a certain role in guiding and collecting wind due to the center of the fan blade structure 1, and guiding wind is blown out from the wind outlet hole 13 of the fan blade structure 1. The air outlet hole 13 can greatly facilitate the disassembly of the fan blade structure 1 from the outer rotor motor 2, namely, the fan blade structure 1 can be taken down only by unscrewing the nut 4.
An outer rotor motor 2 for driving the fan blade structure 1 to rotate;
in the present embodiment, the external rotor motor 2 is a common motor structure, that is, the rotor of the external rotor motor 2 is mounted in the anti-fouling housing 6.
One end of the main shaft 3 is detachably connected with the mounting hole 12, and the other end of the main shaft is in driving connection with the outer rotor motor 2;
in this embodiment, one end of the main shaft 3 is connected with the mounting hole 12 through the nut 4 and the fixing plate 5, the other end is used as a motor shaft of the outer rotor motor 2, a through hole for mounting the nut 4 is provided on an end surface of the fan blade structure 1 away from the mounting groove 11, preferably, a connection step 31 is provided on one end of the main shaft 3 connected with the mounting hole 12, and a hole matched with the connection step 31 is provided on the fixing plate 5. Wherein, fixed plate 5 can pass through screw fixed connection with flabellum structure 1.
An anti-fouling shell 6 which is arranged outside the outer rotor motor 2 and is provided with a through hole for the spindle 3 to pass through;
in the present embodiment, an anti-fouling cover 7 is provided on the anti-fouling casing 6, and the anti-fouling cover 7 is detachably connected with the anti-fouling casing 6 to close the outer rotor motor 2. Preferably, the anti-fouling cover 7 and the anti-fouling shell 6 are fixed by screws, so that the anti-fouling cover can be conveniently disassembled and assembled. Wherein, the antifouling cover 7 is provided with a wire fixing block 9, and wires are fixed by screws. Preferably, the side of the dirt housing 6 facing the fan blade structure 1 is also conical.
As shown in fig. 6, in other embodiments, in order to improve the smoothness of rotation of the main shaft 3 and to improve the oil stain resistance effect, a bearing 10 is provided between the anti-fouling housing 6 and the main shaft 3. Preferably, a projection is provided on an end surface of the outer rotor motor 2 facing the bearing 10, and the projection abuts against the bearing 10.
The anti-fouling cover 8 is arranged on the outer ring of the anti-fouling shell 6 and used for blocking a gap between the outer rotor motor 2 and the fan blade structure 1 so as to prevent oil stains from dripping into the gap between the outer rotor motor 2 and the fan blade structure 1.
In this embodiment, the diameter of the dirt shield 8 is greater than or equal to the fan blade structure 1, and a flange is provided at the edge of the dirt shield 8, and the flange is disposed towards the fan blade structure 1. Preferably, the anti-fouling cover 8 can be fixed on the anti-fouling shell 6 by welding, screws or interference fit.
The detailed description of the present application is not prior art, and thus is not described in detail herein.
It will be understood that the terms "a" and "an" should be interpreted as referring to "at least one" or "one or more," i.e., in one embodiment, the number of elements may be one, while in another embodiment, the number of elements may be plural, and the term "a" should not be interpreted as limiting the number.
Although the terms of the fan blade structure 1, the outer rotor motor 2, the main shaft 3, the nut 4, the fixing plate 5, the anti-fouling housing 6, the anti-fouling cover 7, the anti-fouling cover 8, the wire fixing block 9, the bearing 10, the mounting groove 11, the mounting hole 12, the air outlet hole 13, the connection step 31, etc. are used more herein, the possibility of using other terms is not excluded. These terms are used merely for convenience in describing and explaining the essence of the present application; they are to be interpreted as any additional limitation that is not inconsistent with the spirit of the present application.
The present application is not limited to the above-mentioned preferred embodiments, and any person can obtain other products in various forms under the teaching of the present application, but any changes in shape or structure of the products are within the scope of protection of the present application.
Claims (10)
1. An outer rotor centrifugal fan with high protection level, which is characterized by comprising:
a fan blade structure, wherein a concave mounting groove is arranged at the center of one end face, and a mounting hole is arranged at the center of the mounting groove;
an outer rotor motor for driving the fan blade structure to rotate;
one end of the main shaft is detachably connected with the mounting hole, and the other end of the main shaft is in driving connection with the outer rotor motor;
the anti-fouling shell is arranged outside the outer rotor motor and is provided with a through hole for the spindle to pass through;
the antifouling cover is arranged on the outer ring of the antifouling shell and used for blocking a gap between the outer rotor motor and the fan blade structure so as to prevent oil stains from dripping into the gap between the outer rotor motor and the fan blade structure.
2. The high protection level outer rotor centrifugal fan according to claim 1, wherein the dirt shield is disposed parallel to the end surfaces of the fan blade structure.
3. The high-protection-level outer rotor centrifugal fan according to claim 1, wherein one end of the main shaft is connected with the mounting hole through a nut and a fixing plate, the other end of the main shaft is used as a motor shaft of the outer rotor motor, and a through hole for mounting the nut is formed in an end face, away from the mounting groove, of the fan blade structure.
4. The high protection level outer rotor centrifugal fan according to claim 1, wherein an anti-fouling cover is provided on the anti-fouling casing, and the anti-fouling cover is detachably connected with the anti-fouling casing to seal the outer rotor motor.
5. The high protection level outer rotor centrifugal fan according to claim 4, wherein the anti-fouling cover is provided with a wire fixing block.
6. The high protection level outer rotor centrifugal fan according to claim 2, wherein a flange is provided at the edge of the dirt shield, the flange being disposed toward the fan blade structure.
7. The high protection-level outer rotor centrifugal fan according to claim 2, wherein the diameter of the dirt-proof cover is greater than or equal to the fan blade structure.
8. The high-protection-level outer rotor centrifugal fan according to claim 3, wherein a connecting step is arranged at one end of the main shaft connected with the mounting hole, and a hole matched with the connecting step is arranged on the fixing plate.
9. The high protection level outer rotor centrifugal fan according to any one of claims 1-8, wherein a bearing is provided between the anti-fouling casing and the main shaft.
10. The high protection-level outer rotor centrifugal fan according to claim 9, wherein a protruding portion is provided on an end surface of the outer rotor motor facing the bearing, the protruding portion being abutted against the bearing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311705120.7A CN117685240A (en) | 2023-12-11 | 2023-12-11 | Outer rotor centrifugal fan with high protection level |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202311705120.7A CN117685240A (en) | 2023-12-11 | 2023-12-11 | Outer rotor centrifugal fan with high protection level |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN117685240A true CN117685240A (en) | 2024-03-12 |
Family
ID=90125998
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202311705120.7A Pending CN117685240A (en) | 2023-12-11 | 2023-12-11 | Outer rotor centrifugal fan with high protection level |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN117685240A (en) |
Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1053645B (en) * | 1957-07-29 | 1959-03-26 | Ziehl Abegg O H G | Sealing of the fixed cover against the housing of an external rotor motor formed by the runner |
| DE3326543A1 (en) * | 1983-07-22 | 1985-01-31 | Mulfingen Elektrobau Ebm | External-rotor motor for a ventilator |
| EP0907028A1 (en) * | 1997-10-03 | 1999-04-07 | Bitron S.p.A. | An electric fan assembly with a hermetically sealed electric motor |
| CN101123373A (en) * | 2006-08-08 | 2008-02-13 | 台达电子工业股份有限公司 | Onboard fan and its using motor |
| JP2016014365A (en) * | 2014-07-03 | 2016-01-28 | 株式会社日本クライメイトシステムズ | Mounting structure for fan |
| CN206111626U (en) * | 2016-10-08 | 2017-04-19 | 青岛宏达赛耐尔科技股份有限公司 | Flat centrifugal fan of no spiral case |
| CN106969422A (en) * | 2015-10-30 | 2017-07-21 | Lg电子株式会社 | Blowing fan and the air regulator with the blowing fan |
| CN206668593U (en) * | 2017-04-21 | 2017-11-24 | 上海盖夫环保科技有限公司 | A kind of outer rotor extending shaft fixes backward centrifugal blower |
| CN207363924U (en) * | 2017-10-27 | 2018-05-15 | 日本电产凯宇汽车电器（江苏）有限公司 | A kind of brushless fan |
| CN109322854A (en) * | 2017-07-31 | 2019-02-12 | 芜湖美的厨卫电器制造有限公司 | Coaxial connector for blower and the blower with it |
| CN210265183U (en) * | 2019-08-19 | 2020-04-07 | 江门市胜思特电器有限公司 | Novel fan structure |
| CN211082402U (en) * | 2019-07-24 | 2020-07-24 | 广东永丰智威电气有限公司 | Motor shaft and flange dish mounting structure of fan |
| CN111810449A (en) * | 2020-06-17 | 2020-10-23 | 珠海格力电器股份有限公司 | Air outlet grille and air outlet device |
| CN213331630U (en) * | 2020-10-21 | 2021-06-01 | 杭州康钡电机有限公司 | Freezer fan |
| CN213511303U (en) * | 2020-10-26 | 2021-06-22 | 赵万虎 | Dust removal fan |
| CN213574746U (en) * | 2020-11-16 | 2021-06-29 | 浙江亿利达风机股份有限公司 | High-performance outer rotor fan |
-
2023
- 2023-12-11 CN CN202311705120.7A patent/CN117685240A/en active Pending
Patent Citations (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1053645B (en) * | 1957-07-29 | 1959-03-26 | Ziehl Abegg O H G | Sealing of the fixed cover against the housing of an external rotor motor formed by the runner |
| DE3326543A1 (en) * | 1983-07-22 | 1985-01-31 | Mulfingen Elektrobau Ebm | External-rotor motor for a ventilator |
| EP0907028A1 (en) * | 1997-10-03 | 1999-04-07 | Bitron S.p.A. | An electric fan assembly with a hermetically sealed electric motor |
| CN101123373A (en) * | 2006-08-08 | 2008-02-13 | 台达电子工业股份有限公司 | Onboard fan and its using motor |
| JP2016014365A (en) * | 2014-07-03 | 2016-01-28 | 株式会社日本クライメイトシステムズ | Mounting structure for fan |
| CN106969422A (en) * | 2015-10-30 | 2017-07-21 | Lg电子株式会社 | Blowing fan and the air regulator with the blowing fan |
| CN206111626U (en) * | 2016-10-08 | 2017-04-19 | 青岛宏达赛耐尔科技股份有限公司 | Flat centrifugal fan of no spiral case |
| CN206668593U (en) * | 2017-04-21 | 2017-11-24 | 上海盖夫环保科技有限公司 | A kind of outer rotor extending shaft fixes backward centrifugal blower |
| CN109322854A (en) * | 2017-07-31 | 2019-02-12 | 芜湖美的厨卫电器制造有限公司 | Coaxial connector for blower and the blower with it |
| CN207363924U (en) * | 2017-10-27 | 2018-05-15 | 日本电产凯宇汽车电器（江苏）有限公司 | A kind of brushless fan |
| CN211082402U (en) * | 2019-07-24 | 2020-07-24 | 广东永丰智威电气有限公司 | Motor shaft and flange dish mounting structure of fan |
| CN210265183U (en) * | 2019-08-19 | 2020-04-07 | 江门市胜思特电器有限公司 | Novel fan structure |
| CN111810449A (en) * | 2020-06-17 | 2020-10-23 | 珠海格力电器股份有限公司 | Air outlet grille and air outlet device |
| CN213331630U (en) * | 2020-10-21 | 2021-06-01 | 杭州康钡电机有限公司 | Freezer fan |
| CN213511303U (en) * | 2020-10-26 | 2021-06-22 | 赵万虎 | Dust removal fan |
| CN213574746U (en) * | 2020-11-16 | 2021-06-29 | 浙江亿利达风机股份有限公司 | High-performance outer rotor fan |
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