CN105914932A - Waterproof dustproof device of external rotor direct-current brushless motor heat dissipation fan - Google Patents
Waterproof dustproof device of external rotor direct-current brushless motor heat dissipation fan Download PDFInfo
- Publication number
- CN105914932A CN105914932A CN201610420151.1A CN201610420151A CN105914932A CN 105914932 A CN105914932 A CN 105914932A CN 201610420151 A CN201610420151 A CN 201610420151A CN 105914932 A CN105914932 A CN 105914932A
- Authority
- CN
- China
- Prior art keywords
- flabellum
- brushless motor
- cup
- shaft core
- ball bearing
- Prior art date
- 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
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Classifications
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/10—Casings or enclosures characterised by the shape, form or construction thereof with arrangements for protection from ingress, e.g. water or fingers
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K5/00—Casings; Enclosures; Supports
- H02K5/04—Casings or enclosures characterised by the shape, form or construction thereof
- H02K5/12—Casings or enclosures characterised by the shape, form or construction thereof specially adapted for operating in liquid or gas
- H02K5/124—Sealing of shafts
-
- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K9/00—Arrangements for cooling or ventilating
- H02K9/02—Arrangements for cooling or ventilating by ambient air flowing through the machine
- H02K9/04—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium
- H02K9/06—Arrangements for cooling or ventilating by ambient air flowing through the machine having means for generating a flow of cooling medium with fans or impellers driven by the machine shaft
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Brushless Motors (AREA)
Abstract
The invention relates to a waterproof dustproof device of an external rotor direct-current brushless motor heat dissipation fan. The waterproof dustproof device comprises a fixed seat, a rotor shaft core, a fan blade, ball bearings and a rear cover. The fixed seat extends inwards to form a U-shaped circular cup with a depression. The middle part of the U-shaped circular cup extends towards the inner part of the cup to form a middle tube. The outer side of the middle tube is fixedly provided with a stator assembly. The inner side of the middle tube extends to form a step and two ends of the steps are fixedly provided with the ball bearings. The rotor shaft core penetrates into the inner parts of the ball bearings. An opening part, facing the direction of the fan blade, of the middle tube is additionally provided with an annular groove. The annular groove is fixed to an annular ring of the fan blade in a plug-in manner. A dust discharge blade device is added to the inner part of the fan blade. The waterproof dustproof device can work normally in a severe environment with a high temperature, a large air humidity, dust and water, and the internally sealed structure is adopted, so that a stator coil, a PCB electronic element, rotor magnetic steel and a magnetic steel sheath in the heat dissipation fan are protected against damp, the waterproof function is available, and the performance and the service lifetime are ensured.
Description
Technical field
The present invention relates to outer rotor DC Brushless Motor heat dissipation technology, particularly relate to a kind of outer rotor brush DC
Motor radiating fan dust and water proof apparatus.
Background technology
Brushless DC motor is the one of permanent magnetic synchronous electrical motor, is to use semiconductor switch device to realize electricity
Son commutation, i.e. replace traditional contact commutator and brush with electronic switching device, have reliability high,
The advantages such as non-commutation spark, mechanical noise are low, are widely used in high-grade deck, video recorder, electronic instrument
And in automated office equipment.
Brushless DC motor by motor bodies such as PM rotor, multipole wound stator, position sensors and
Driver forms, and the stator winding of motor makes three-phase symmetrical star connection, same threephase asynchronous more
Quite similar；Driver is made up of power electronic device and integrated circuit etc., receives the startup of motor, stops
Only, brake signal, to control the startup of motor, stop and braking；Receiving position sensor signal and just
Reverse signal, is used for controlling the break-make of each power tube of inverter bridge, produces continuous torque；Receive speed command and
Feedback speed signal, is used for controlling and adjusting rotating speed, it is provided that protect and display etc..
But, at high temperature, air humidity is big, dust is big, have in the severe rugged environment of water, common outer rotor
DC Brushless Motor radiator fan cannot meet requirement on market, these outer rotor DC Brushless Motor radiation airs
Fanning waterproof employing stator coil and PCB electronic component vacuum coating or vacuum glue pouring technique, cost is high, technique
Complexity, and cannot reprocess；And the rotor magnetic steel of outer rotor DC Brushless Motor radiator fan and magnet steel sheath by
Be not suitable for doing waterproof processing in the aequum ensureing operating to process, therefore outer rotor DC Brushless Motor radiation air
The fan magnet steel of rotor and magnet steel sheath easily make moist rustization, cause outer rotor DC Brushless Motor radiator fan
Performance reliability declines, reduced lifetime.
Therefore, for the above, need prior art is reasonably improved.
Summary of the invention
For disadvantages described above, the present invention provides a kind of outer rotor DC Brushless Motor radiator fan water proof and dust proof dress
Put, make the stator coil within outer rotor DC Brushless Motor radiator fan, PCB electronic component, rotor magnetic
Steel and magnet steel sheath do not make moist, and waterproof guarantee its performance and life-span, solve many deficiencies of prior art.
For achieving the above object, the present invention is by the following technical solutions:
A kind of outer rotor DC Brushless Motor radiator fan dust and water proof apparatus, including fixing seat, rotor shaft core,
Flabellum, ball bearing, bonnet, described fixing seat extends inward and forms a U-shaped circle cup with depression,
Described U-shaped circle cup centre position is managed to internal the extension in formation one of cup, fixedly mounts stator in this outside pipe
Assembly, a step is extended in middle pipe inboard and this step two ends are fixedly installed ball bearing, described ball
Bearing inner penetrates rotor shaft core and this rotor shaft core stretches out the part fixed installation fan outside ball bearing
Leaf；
Set up at the rim of a cup of described U-shaped circle cup and increase between the rim of a cup of a bonnet and this bonnet and U-shaped circle cup
Adding a seal gasket, flabellum loads armature spindle core inner and installs between this flabellum and adjacent ball bearing
One sealing ring, sealing ring is compressed to ball bearing by stainless steel card；Described middle pipe is towards flabellum direction
Opening increases a cannelure, and this cannelure is mutually inserted fixing with the annular ring of flabellum, described flabellum
Internal increase dust discharge blading.
Correspondingly, the internal diameter of described sealing ring and rotor shaft core external diameter are interference fit；Described stainless steel card
External diameter and middle bore interference fit, described cannelure keeps a determining deviation with the annular ring of flabellum.
Having the beneficial effect that of outer rotor DC Brushless Motor radiator fan dust and water proof apparatus of the present invention
Big for high temperature, the air humidity of the market demand, dust is big, have in the severe rugged environment of water and can normally use,
This outer rotor DC Brushless Motor radiator fan dust and water proof apparatus takes the internal structure sealed, and makes outer rotor
Stator coil, PCB electronic component, rotor magnetic steel and magnet steel sheath within DC Brushless Motor radiator fan
Do not make moist, it is ensured that its performance and life-span.
Accompanying drawing explanation
Below according to accompanying drawing, the present invention is described in further detail.
Fig. 1 is outer rotor DC Brushless Motor radiator fan dust and water proof apparatus structure described in the embodiment of the present invention
Schematic diagram；
Fig. 2 is the A-A directional profile schematic diagram of Fig. 1；
Fig. 3 is the row of outer rotor DC Brushless Motor radiator fan dust and water proof apparatus described in the embodiment of the present invention
Dirt blading schematic diagram；
Fig. 4 is the fan of outer rotor DC Brushless Motor radiator fan dust and water proof apparatus described in the embodiment of the present invention
Leaf partial schematic diagram.
In figure:
1, U-shaped circle cup；2, middle pipe；3, stator module；4, step；5, ball bearing；6, bonnet；
7, seal gasket；8, sealing ring；9, stainless steel card；
11, fixing seat；21, rotor shaft core；22, flabellum；23, cannelure；24, annular ring；81、
Dust discharge blading.
Detailed description of the invention
As Figure 1-4, the outer rotor DC Brushless Motor radiator fan described in the embodiment of the present invention is waterproof anti-
Dirt device, including fixing seat 11, rotor shaft core 21, flabellum 22, ball bearing 5, bonnet 6, described solid
Reservation 11 extends inward and forms a U-shaped circle cup 1 with depression and the size of this U-shaped circle cup 1
Depending on actual outer rotor DC Brushless Motor radiator fan, described U-shaped circle cup 1 centre position is in cup
Portion extends and forms a middle pipe 2, fixes determining of outer rotor DC Brushless Motor radiator fan in this outside pipe 2
Sub-component 3, a step 4 is extended in middle pipe 2 inboard and this step 4 two ends are fixedly installed ball bearing 5,
Described ball bearing 5 inside penetrates rotor shaft core 21 and this rotor shaft core 21 is stretched out outside ball bearing 5
Part fixed installation flabellum 22；
Correspondingly, a bonnet 6 and this bonnet 6 and U-shaped circle are set up at the rim of a cup of described U-shaped circle cup 1
Increasing a seal gasket 7 between the rim of a cup of cup 1, flabellum 22 loads rotor shaft core 21 inside and this flabellum
One sealing ring 8 is installed, outside the internal diameter of sealing ring 8 is with rotor shaft core 21 between 22 with adjacent ball bearing 5
Footpath is interference fit, and sealing ring 8 is compressed to ball bearing 5 by stainless steel card 9, outside stainless steel card 9
Footpath and middle pipe 2 internal diameter interference fit, so that outer rotor DC Brushless Motor radiator fan is when running well
Reach the effect of water proof and dust proof.
Correspondingly, described middle pipe 2 increases a cannelure 23 towards the opening in flabellum 22 direction, this
Cannelure 23 is mutually inserted installation with the annular ring 24 of flabellum 22, in the running, and cannelure 23 and flabellum
The annular ring 24 of 22 remains a determining deviation, thus reaches dustproof effect, reduces dust to motor internal
Flow into.Additionally, described flabellum 22 is internal increases dust discharge blading 81, outside this dust discharge blading 81 makes
Rotor DC Brushless Motor radiator fan in the running, can be discharged by its effect toward flabellum outer radius by dust.
The above-mentioned description to embodiment is for the ease of those skilled in the art it will be appreciated that and answer
Using this case technology, these examples obviously can be made various amendment by person skilled in the art easily, and
General Principle described herein is applied in other embodiments without through performing creative labour.Therefore,
This case is not limited to above example, and those skilled in the art, according to the announcement of this case, makes for this case
Improve and amendment, such as, the motor type that is flexibly applied to, model etc., all should be in the protection of this case
In the range of.
Claims (4)
1. an outer rotor DC Brushless Motor radiator fan dust and water proof apparatus, including fixing seat (11),
Rotor shaft core (21), flabellum (22), ball bearing (5), bonnet (6), it is characterised in that:
Described fixing seat (11) extends inward and forms U-shaped circle cup (1) with depression, described U
(2) are managed to internal the extension in formation one of cup in shape circle cup (1) centre position, manage (2) outside fixing in this
Installing stator module (3), a step (4) and this step (4) two ends are extended in middle pipe (2) inboard
Being fixedly installed ball bearing (5), described ball bearing (5) is internal penetrates rotor shaft core (21) and this turn
Sub-shaft core (21) stretches out part fixed installation flabellum (22) outside ball bearing (5)；
A bonnet (6) and this bonnet (6) and U-shaped is set up at the rim of a cup of described U-shaped circle cup (1)
Increasing a seal gasket (7) between the rim of a cup of circle cup (1), flabellum (22) loads rotor shaft core (21)
Internal and one sealing ring (8) of installation, sealing ring between this flabellum (22) and adjacent ball bearing (5)
(8) compressed to ball bearing (5) by stainless steel card (9)；Described middle pipe (2) is towards flabellum (22)
The opening in direction increases the annular ring of a cannelure (23), this cannelure (23) and flabellum (22)
(24) being mutually inserted fixing, described flabellum (22) is internal increases dust discharge blading (81).
Outer rotor DC Brushless Motor radiator fan dust and water proof apparatus the most according to claim 1, its
It is characterised by: the internal diameter of described sealing ring (8) and rotor shaft core (21) external diameter are interference fit.
Outer rotor DC Brushless Motor radiator fan dust and water proof apparatus the most according to claim 1, its
It is characterised by: described stainless steel card (9) external diameter and middle pipe (2) internal diameter interference fit.
Outer rotor DC Brushless Motor radiator fan dust and water proof apparatus the most according to claim 1, its
It is characterised by: described cannelure (23) keeps a determining deviation with the annular ring (24) of flabellum (22).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610420151.1A CN105914932A (en) | 2016-06-14 | 2016-06-14 | Waterproof dustproof device of external rotor direct-current brushless motor heat dissipation fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610420151.1A CN105914932A (en) | 2016-06-14 | 2016-06-14 | Waterproof dustproof device of external rotor direct-current brushless motor heat dissipation fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105914932A true CN105914932A (en) | 2016-08-31 |
Family
ID=56750957
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610420151.1A Pending CN105914932A (en) | 2016-06-14 | 2016-06-14 | Waterproof dustproof device of external rotor direct-current brushless motor heat dissipation fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105914932A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108832773A (en) * | 2018-08-30 | 2018-11-16 | 上海特波电机有限公司 | Motor height protects fan blade |
| CN109944818A (en) * | 2019-04-15 | 2019-06-28 | 东莞市海星和实业有限公司 | A kind of small-sized fans and outer rotor brushless motor of new waterproof dustproof construction |
| CN110752712A (en) * | 2019-11-28 | 2020-02-04 | 北京空天高科技有限公司 | External rotor motor with fan for heat dissipation and stratospheric airship |
| CN112564408A (en) * | 2020-12-10 | 2021-03-26 | 擎风(扬州)新能源科技有限公司 | Sealed high-voltage direct-current brushless outer rotor fan |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03261360A (en) * | 1990-03-09 | 1991-11-21 | Fuji Electric Co Ltd | Driving motor for magnetic disk equipment |
| TW200935710A (en) * | 2008-02-05 | 2009-08-16 | Delta Electronics Inc | Foreign bodies-or water-proof fan and motor |
| CN201461555U (en) * | 2009-04-24 | 2010-05-12 | 东莞动利电子有限公司 | Dustproof and oil leakproof structure of fan |
| CN102230474A (en) * | 2011-06-28 | 2011-11-02 | 广州南科集成电子有限公司 | Waterproof and dustproof fan |
| CN202118000U (en) * | 2010-11-23 | 2012-01-18 | 奇鋐科技股份有限公司 | Waterproof and dustproof motor radiation structure and fan unit |
| CN205195468U (en) * | 2015-11-16 | 2016-04-27 | 珠海格力电器股份有限公司 | External rotor motor element and air conditioner |
| CN205864137U (en) * | 2016-06-14 | 2017-01-04 | 杨伟平 | A kind of outer rotor DC Brushless Motor radiator fan dust and water proof apparatus |
-
2016
- 2016-06-14 CN CN201610420151.1A patent/CN105914932A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH03261360A (en) * | 1990-03-09 | 1991-11-21 | Fuji Electric Co Ltd | Driving motor for magnetic disk equipment |
| TW200935710A (en) * | 2008-02-05 | 2009-08-16 | Delta Electronics Inc | Foreign bodies-or water-proof fan and motor |
| CN201461555U (en) * | 2009-04-24 | 2010-05-12 | 东莞动利电子有限公司 | Dustproof and oil leakproof structure of fan |
| CN202118000U (en) * | 2010-11-23 | 2012-01-18 | 奇鋐科技股份有限公司 | Waterproof and dustproof motor radiation structure and fan unit |
| CN102230474A (en) * | 2011-06-28 | 2011-11-02 | 广州南科集成电子有限公司 | Waterproof and dustproof fan |
| CN205195468U (en) * | 2015-11-16 | 2016-04-27 | 珠海格力电器股份有限公司 | External rotor motor element and air conditioner |
| CN205864137U (en) * | 2016-06-14 | 2017-01-04 | 杨伟平 | A kind of outer rotor DC Brushless Motor radiator fan dust and water proof apparatus |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108832773A (en) * | 2018-08-30 | 2018-11-16 | 上海特波电机有限公司 | Motor height protects fan blade |
| CN109944818A (en) * | 2019-04-15 | 2019-06-28 | 东莞市海星和实业有限公司 | A kind of small-sized fans and outer rotor brushless motor of new waterproof dustproof construction |
| CN110752712A (en) * | 2019-11-28 | 2020-02-04 | 北京空天高科技有限公司 | External rotor motor with fan for heat dissipation and stratospheric airship |
| CN112564408A (en) * | 2020-12-10 | 2021-03-26 | 擎风(扬州)新能源科技有限公司 | Sealed high-voltage direct-current brushless outer rotor fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20170316 Address after: 523000 Guangdong city of Dongguan province Dongcheng District mulberry industrial zone two zone two Road No. five Applicant after: Dongguan Xu Heng Electronics Co., Ltd. Address before: 523000 Guangdong city of Dongguan province Dongcheng District mulberry industrial zone two zone two Road No. five Applicant before: Yang Weiping |
|
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160831 |