CN2854915Y - Small brushless AC fan motor - Google Patents
Small brushless AC fan motor Download PDFInfo
- Publication number
- CN2854915Y CN2854915Y CN 200520136615 CN200520136615U CN2854915Y CN 2854915 Y CN2854915 Y CN 2854915Y CN 200520136615 CN200520136615 CN 200520136615 CN 200520136615 U CN200520136615 U CN 200520136615U CN 2854915 Y CN2854915 Y CN 2854915Y
- Authority
- CN
- China
- Prior art keywords
- fan
- small
- stator
- magnetic conductive
- stator coil
- 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.)
- Expired - Lifetime
Links
- 241000883990 Flabellum Species 0.000 claims description 15
- 230000002093 peripheral effect Effects 0.000 claims description 3
- 230000006698 induction Effects 0.000 abstract description 5
- 230000001939 inductive effect Effects 0.000 description 6
- 230000002964 excitative effect Effects 0.000 description 5
- 230000000694 effects Effects 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 2
- 230000004308 accommodation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000005284 excitation Effects 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000005426 magnetic field effect Effects 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
Images
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- Structures Of Non-Positive Displacement Pumps (AREA)
- Brushless Motors (AREA)
Abstract
A small-size brushless DC fan motor comprises a fixing seat, a rotor unit, and a stator unit. The rotor unit comprises a pivot member pivotally disposed on bottom surface of the fixing seat, a fan blade member disposed on the pivot member, and a magnetic conductive member fixedly disposed on periphery of the pivot member. The stator unit disposed on the fixing seat comprises a stator coil around periphery of the magnetic conductive member, and a circuit board electrically connected with the stator coil. When the circuit board is energized to excite the stator coil, under induction, the magnetic conductive member rotates to drive rotation of the pivot member and the fan blade members. The utility model has small size, wide application, and high air quantity.
Description
[technical field]
The utility model relates to a kind of fan motor, particularly relates to a kind of small-sized brushless DC fan.
[background technology]
Because the general heating element is (as central processing unit, single-chip ... or the like) running the time can generate heat and the phenomenon that causes usefulness to reduce, therefore use and can utilize radiator fan that the hot gas that heater element produced is given radiating and cooling.As shown in Figure 1, general radiator fan 1 includes a housing 11, and the stator apparatus 12, that is fixedly arranged on these housing 11 inside is located at the rotation axis 13 in this stator apparatus 12, and an impeller 14 that is fixedly arranged on this rotation axis 13.This housing 11 is extended with a central siphon 111, and be installed with an axle sleeve 15 on this central siphon 111, then be installed with a bearing 16 that supplies rotation axis 13 to place in this axle sleeve 15, simultaneously, this stator apparatus 12 is to be set on this axle sleeve 15, and this impeller 14 be provided with can with the inductive magnetic ring 141 of this stator apparatus 12 inductions, can be driven in rotation so as to making this impeller 14, and reach the application target of heat radiation rotation.
Yet, this radiator fan 1 is in assembling, be that wheel hub 140 medial margins in impeller 14 are provided with inductive magnetic ring 141, make stator apparatus 12 behind energization excitation, produce magnetic field effect, and the rotation axis 13 that impeller 14 drives are located in the stator apparatus 12 produce rotation, so with inductive magnetic ring 141, the wheel hub 140 of this impeller 14 is in design, must increase its diameter length, just make the width lengthening of wheel hub 140, can have bigger accommodation space to install this inductive magnetic ring 141.So, general radiator fan 1 is after assembling is finished, and whole volume is bigger, and is less as the space of the set occasions of heater element such as central processing unit, single-chip, or heat dissipation environment is when being subjected to the restriction of width distance, just can't have enough spaces can be ccontaining for it.
As previously mentioned, general radiator fan 1 occasion applicatory just can be restricted, and can't be widely used in the various different heater elements of environment that are provided with, and simultaneously, the blade area of impeller 14 also can't be strengthened again, has limited whole air output relatively.
[utility model content]
The purpose of this utility model is to be to provide a kind of volume little and can be used in occasion widely, and can improve the small-sized brushless DC fan of air output.
In order to achieve the above object, the utility model provides a kind of small-sized brushless DC fan, includes a positioning seat, a rotor unit, and a stator unit; This rotor unit comprises that an articulated part, that can be hubbed at this positioning seat bottom surface is located at the flabellum spare on this articulated part, and a magnetic conductive part that is fixedly arranged on this articulated part periphery; This stator unit is to be located on this positioning seat, comprises that one is located in the stator coil of this magnetic conductive part outer rim, and a circuit board that is electrically connected with this stator coil; This circuit board is energized when making stator coil excitatory, can respond to this magnetic conductive part and rotate and this articulated part drive flabellum spare rotation of interlock.
Described small-sized brushless DC fan is characterized in that: this positioning seat bottom surface convexes with a locating shaft, and the articulated part of this rotor unit rotatably is sheathed on this locating shaft.
Described small-sized brushless DC fan is characterized in that: this magnetic conductive part is an annular magnet.
Described small-sized brushless DC fan is characterized in that: this articulated part apical margin is outwards and downwards to extend to be provided with a surrounding wall, and this surrounding wall is the outer peripheral edges that are located in this stator unit, and flabellum spare then is located on the circumferential surface of this surrounding wall.
The utility model is energized when excitatory by this stator coil, can directly respond to this magnetic conductive part rotates and this articulated part drive flabellum spare rotation of interlock, do not need again on the wheel hub inner edge surface of impeller, to be provided with can with the inductive magnetic ring of stator coil induction, therefore, the utility model can reduce whole volume in design, so that use occasion widely to be provided, and reach the use effect that is applicable to various heater elements, and the area that can in good time increase flabellum spare is with relative raising air output.
[description of drawings]
Below by preferred embodiment and accompanying drawing the utility model small-sized brushless DC fan is elaborated, in the accompanying drawing:
Fig. 1 is a side-looking decomposing section, and the fan assembly of existing innerpole is described.
Fig. 2 is the three-dimensional exploded view of the utility model external pole type fan assembly first preferred embodiment.
Fig. 3 is the side cutaway view of the utility model external pole type fan assembly first preferred embodiment.
Fig. 4 is the side cutaway view of the utility model external pole type fan assembly second preferred embodiment.
[embodiment]
Before the utility model is described in detail, be noted that in the following description content similar elements is to represent with identical numbering.
Consult Fig. 2 and Fig. 3, first preferred embodiment of the utility model small-sized brushless DC fan is to include a positioning seat 5, a rotor unit 7, and a stator unit 8.These positioning seat 5 bottom surfaces have extended upward a locating shaft 50.This rotor unit 7 comprises that one rotatably is sheathed on articulated part 70, on this locating shaft 50 and is located at flabellum spare 72 on this articulated part 70, and a magnetic conductive part 74 that is fixedly arranged on these articulated part 70 peripheries.In the present embodiment, this magnetic conductive part 74 is to adopt an annular magnet, and this annular magnet can be ferro-gum or permanent magnet, because the structure and the function of this annular magnet are that industrial quarters is generally commonly used, does not repeat them here.In addition, this annular magnet can be with gummed, screw locking, or otherwise is fixed in this articulated part 70 peripheries.
This stator unit 8 is to be located on this positioning seat 5, comprise that one is located in the stator coil 80 of these magnetic conductive part 74 outer rims, an and circuit board 82 that is electrically connected with this stator coil 80, this circuit board 82 is energized when making stator coil 80 excitatory, can respond to that this magnetic conductive part 74 rotates and this articulated part 70 of interlock be that the center drives flabellum spare 72 and rotates with locating shaft 50.
Still see also Fig. 3, the fan motor of present embodiment is in design, have and to respond to function excitatory and generation magnetic field with this stator coil 80 by this magnetic conductive part 74, can make this stator coil 80 be energized excitatory and when producing magnetic field, this magnetic conductive part 74 can be rotated by magnetic field induction directly, and this articulated part 70 of interlock is that the center drives this flabellum spare 72 and produces rotation with this locating shaft 50, therefore just do not need again in the inner edge surface of flabellum spare 72 be provided with can with the inductive magnetic ring of stator coil 80 inductions.So, the fan motor of present embodiment is in design, can reduce the diameter length (just whole width reduces) of flabellum spare 72, when the fan motor of present embodiment after assembling is finished, whole volume is less, so that it is narrower and small to be installed in the inner space, or in the heater elements such as the narrower little central processing unit of the width distance of heat dissipation environment, single-chip, and have the effect that is widely used in various heater elements; Whole air output perhaps can under the width that does not change fan motor originally, increase the area of flabellum spare 74 relatively, so that can effectively improve.
Consult Fig. 4, all the component construction with this first preferred embodiment is identical for the structure of most of element in second preferred embodiment of the utility model small-sized brushless DC fan, different places is to be: these articulated part 70 apical margins are outwards and downwards to extend to be provided with a surrounding wall 700, this surrounding wall 700 is the outer peripheral edges that are located in this stator unit 8, and flabellum spare 74 then is located on the circumferential surface of this surrounding wall 700.By this design, can reach the effect that is produced with this first preferred embodiment equally, and another different enforcement aspect is provided.
Conclude above-mentioned, the utility model small-sized brushless DC fan in design, really can make the whole littler volume that after assembling is finished, has, so as to use occasion widely is provided, and the area that can in good time increase flabellum spare is to improve air output, so can reach the purpose of this utility model really.
Claims (4)
1. small-sized brushless DC fan is characterized in that:
This small-sized brushless DC fan comprises: a positioning seat, a rotor unit, an and stator unit, this rotor unit comprises that an articulated part, that is hubbed at this positioning seat bottom surface is located at the flabellum spare on this articulated part, an and magnetic conductive part that is fixedly arranged on this articulated part periphery, and this stator unit is to be located on this positioning seat, comprise that one is located in the stator coil of this magnetic conductive part outer rim, and a circuit board that is electrically connected with this stator coil.
2. small-sized brushless DC fan as claimed in claim 1 is characterized in that: this positioning seat bottom surface convexes with a locating shaft, and the articulated part of this rotor unit rotatably is sheathed on this locating shaft.
3. small-sized brushless DC fan as claimed in claim 1 or 2 is characterized in that: this magnetic conductive part is an annular magnet.
4. small-sized brushless DC fan as claimed in claim 1, it is characterized in that: this articulated part apical margin is outwards and downwards to extend to be provided with a surrounding wall, this surrounding wall is the outer peripheral edges that are located in this stator unit, and this flabellum spare then is located on the circumferential surface of this surrounding wall.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520136615 CN2854915Y (en) | 2005-12-16 | 2005-12-16 | Small brushless AC fan motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520136615 CN2854915Y (en) | 2005-12-16 | 2005-12-16 | Small brushless AC fan motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2854915Y true CN2854915Y (en) | 2007-01-03 |
Family
ID=37581552
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520136615 Expired - Lifetime CN2854915Y (en) | 2005-12-16 | 2005-12-16 | Small brushless AC fan motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2854915Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821762A (en) * | 2012-11-15 | 2014-05-28 | 三星电机株式会社 | Impeller and electric blower having the same |
| WO2015106541A1 (en) * | 2014-01-20 | 2015-07-23 | 耀新电子股份有限公司 | Planar energy conversion device |
-
2005
- 2005-12-16 CN CN 200520136615 patent/CN2854915Y/en not_active Expired - Lifetime
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103821762A (en) * | 2012-11-15 | 2014-05-28 | 三星电机株式会社 | Impeller and electric blower having the same |
| WO2015106541A1 (en) * | 2014-01-20 | 2015-07-23 | 耀新电子股份有限公司 | Planar energy conversion device |
| CN106170907A (en) * | 2014-01-20 | 2016-11-30 | 耀新电子股份有限公司 | Planar energy conversion equipment |
| US10333367B2 (en) | 2014-01-20 | 2019-06-25 | Speedy Circuits Co., Ltd. | Planar energy conversion device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20070103 |
|
| EXPY | Termination of patent right or utility model |