CN206397761U - Slim brushless DC fan - Google Patents
Slim brushless DC fan Download PDFInfo
- Publication number
- CN206397761U CN206397761U CN201621159034.6U CN201621159034U CN206397761U CN 206397761 U CN206397761 U CN 206397761U CN 201621159034 U CN201621159034 U CN 201621159034U CN 206397761 U CN206397761 U CN 206397761U
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- insulating trip
- fan
- base plate
- metal base
- circuit board
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- Brushless Motors (AREA)
Abstract
The utility model discloses a kind of slim brushless DC fan, including pedestal, metal base plate, insulating trip, stator mechanism and rotor mechanism, and the metal base plate is installed on base bottom, and axle sleeve is provided with the middle part of metal base plate；The insulating trip is loaded on metal base plate upper surface；The stator mechanism includes being printed with the circuit board and bearing of coil windings, and the circuit board is installed on insulating trip upper surface around axle sleeve, the detent mechanism for making both mutually positioning is provided between insulating trip and circuit board；The rotor mechanism includes being vertically arranged with a rotating shaft downwards in the middle part of impeller and magnet steel, the impeller, and the rotating shaft is articulated in above-mentioned bearing, and the magnet steel is installed in impeller, and is right against foregoing circuit plate.Thereby, by using metal base plate as fan bottom support member, and circuit board is separated with metal base plate using insulating trip, not only can prevents fan magnetic from leaking, improve fan performance；And fan structure is simplified, meanwhile, connected up using printing-type, realize the slimming of fan.
Description
Technical field
The utility model is related to fan art technology, refers in particular to a kind of slim brushless DC fan.
Background technology
Radiating be always many devices must in face of the problem of, such as computer is because central processing unit and hard disk are in running
When can produce substantial amounts of heat energy, if heat energy accumulation in a device, easily cause device aging speed quickening, and cause device longevity
Life shortens, and then reduces the efficiency of device.Therefore, radiator fan is typically provided with a device, so that the heat of accumulation in a device
Be able to can smoothly it spread.Existing fan is still driven by the way of stator winding, due to the axial direction needed for stator winding
Width is larger, causes fan thickness big, is difficult to realize the slimming of fan；Moreover, existing fan bottom uses plastic cement material
Material, in order to prevent fan motor magnet steel leakage field, it is necessary to be arranged a metal-back outside motor to prevent leak-stopping magnetic, this will cause fan
Required part is more, assembling inconvenience.Therefore, tackle existing fan to be improved, to solve the above problems.
Utility model content
In view of this, in view of the existing deficiencies of the prior art, its main purpose is to provide a kind of slim nothing to the utility model
Brush DC fan, by using metal base plate as fan bottom support member, and utilizes insulating trip by circuit board and metal base plate
Separate, not only can prevent fan magnetic from leaking, improve fan performance；And fan structure is simplified, meanwhile, using printing-type cloth
Coil is put, the slimming of fan is realized.
To achieve the above object, the utility model is using following technical scheme：
A kind of slim brushless DC fan, includes pedestal, metal base plate, insulating trip, stator mechanism and rotor mechanism, should
Metal base plate is installed on base bottom, and axle sleeve is provided with the middle part of metal base plate；The insulating trip is installed on metal bottom around axle sleeve
Plate upper surface；The stator mechanism includes being printed with the circuit board of coil windings and the bearing being installed in above-mentioned axle sleeve, the circuit
Plate is installed on insulating trip upper surface around axle sleeve, and the localization machine for making both mutually positioning is provided between insulating trip and circuit board
Structure；The rotor mechanism includes being vertically arranged with a rotating shaft downwards in the middle part of impeller and magnet steel, the impeller, and the rotating shaft is articulated in above-mentioned axle
In holding, the magnet steel is installed in impeller, and is right against foregoing circuit plate.
It is used as a kind of preferred scheme：The metal base plate includes fixed part, supporting part and a plurality of supporting ribs, and this is fixed
Portion is installed on base bottom corner；The supporting part is rounded, and positioned at metal base plate center position, in fixed part and supporting part
Between form void region；A plurality of supporting ribs are connected between supporting part and fixed part.
It is used as a kind of preferred scheme：The insulating trip upper and lower surface is respectively arranged with setting for a stretching insulating trip edge
Groove, above-mentioned supporting rib is embedded in insulating trip lower surface embedding slot.
It is used as a kind of preferred scheme：The board edge, which is protruded outward, to be provided with and insulating trip upper surface embedding slot phase
The embedded block matched somebody with somebody, the embedded block is embedded in embedding slot.
It is used as a kind of preferred scheme：The detent mechanism includes the positioning hole being arranged on insulating trip and is arranged at circuit
The locating piece of plate lower surface, locating piece is inserted in positioning hole.
It is used as a kind of preferred scheme：The impeller includes the first revolving part and the second rotation with a plurality of flabellums
Part, above-mentioned rotating shaft is arranged on the first revolving part, and the second revolving part is installed in outside the first revolving part.
It is used as a kind of preferred scheme：There is in the axle sleeve accommodating cavity, in being provided with a ring-shaped step in the accommodating cavity, on
Bearing is stated to be installed on the ring-shaped step.
It is used as a kind of preferred scheme：The accommodating cavity porch is provided with a locating ring, and accommodating cavity bottom is provided with a pad,
Above-mentioned rotating shaft is articulated in bearing through locating ring, and rotating shaft lower end is in contact with pad upper surface.
It is used as a kind of preferred scheme：First revolving part of the impeller has an annular chamber, and above-mentioned rotating shaft is set straight down
It is placed in the middle part of the annular chamber, above-mentioned magnet steel is annularly installed in the annular chamber.
It is used as a kind of preferred scheme：A plurality of starting positioning holes are distributed with the metal base plate in a ring.
The utility model has clear advantage and beneficial effect compared with prior art, specifically, by above-mentioned technology
Scheme is understood, by using metal base plate as fan bottom support member, and in setting insulating trip on metal base plate by circuit board
Separated with metal base plate, the design can not only prevent that magnet steel magnetic leaks in fan, improve fan performance；Moreover, relative to
Conventionally employed plastic cement bottom plate is as the fan of support member, and the fan structure is simpler, and required part is less, meanwhile, stator
The coil of structure on circuit board, can be effectively reduced fan thickness, realize the slimming of fan using printing-type wire laying mode.
More clearly to illustrate architectural feature of the present utility model and effect, come below in conjunction with the accompanying drawings with specific embodiment pair
It is described in detail.
Brief description of the drawings
Fig. 1 is the fan schematic perspective view of the utility model；
Fig. 2 is another view stereo schematic diagram of fan of the utility model；
Fig. 3 is schematic cross-sectional view at Fig. 1 A-A；
Fig. 4 is the fan decomposing schematic representation of the utility model；
Fig. 5 is the insulating trip schematic perspective view of the utility model；
Fig. 6 is the circuit board and insulating trip combination schematic diagram of the utility model.
Accompanying drawing identifier declaration：
10th, pedestal 20, metal base plate
21st, fixed part 22, supporting part
221st, positioning hole 222, axle sleeve are started
223rd, accommodating cavity 224, ring-shaped step
225th, locating ring 226, pad
23rd, supporting rib 24, void region
30th, insulating trip 31, embedding slot
40th, stator mechanism 41, circuit board
411st, embedded block 42, bearing
50th, rotor mechanism 51, impeller
511st, the first revolving part 5111, annular chamber
5112nd, rotating shaft 512, the second revolving part
5121st, flabellum 52, magnet steel
60th, detent mechanism 61, positioning hole
62nd, locating piece.
Embodiment
As shown in Figures 1 to 6, a kind of slim brushless DC fan includes pedestal 10, metal base plate to the utility model
20th, insulating trip 30, stator mechanism 40, rotor mechanism 50 and impeller 60, wherein：
The metal base plate 20 includes fixed part 21, supporting part 22 and a plurality of supporting ribs 23, and the fixed part 21 is installed on
On the bottom corner of pedestal 10, the supporting part 22 is rounded, and positioned at the center position of metal base plate 20, in fixed part 21 and supporting part
Void region 24 is formed between 22, a plurality of supporting ribs 23 are connected between supporting part 22 and fixed part 21；In supporting part
A plurality of starting positioning holes 221 are distributed with 22 in a ring, the starting positioning hole 221 can substitute determining for traditional same type fan
Bit architecture, an axle sleeve 222 is provided centrally with supporting part 22, has in the axle sleeve 222 in an accommodating cavity 223, accommodating cavity 223 and has
There is a ring-shaped step 224, a locating ring 225 is covered with the porch of accommodating cavity 223, the bottom of accommodating cavity 223 is provided with a pad
Piece 226.
The insulating trip 30 is installed on the upper surface of supporting part 22 around axle sleeve 222, is set respectively in the upper and lower surface of insulating trip 30
There is the embedding slot 31 at the edge of a stretching insulating trip 30, above-mentioned supporting rib 23 is embedded in the lower surface embedding slot 31 of insulating trip 30.
The stator mechanism 40 includes being printed with the circuit board 41 of coil windings and the bearing being installed in above-mentioned axle sleeve 222
42, the circuit board 41 is installed on the upper surface of insulating trip 30 around axle sleeve 222, and being provided between insulating trip 30 and circuit board 41 makes
Both mutually positioning detent mechanisms 70, the detent mechanism 70 includes the positioning hole 71 being arranged on insulating trip 30 and set
In the locating piece 72 of the lower surface of circuit board 41, locating piece 72 is inserted in positioning hole 71；And protruded outward in the edge of circuit board 41
The embedded block 411 matched with the upper surface embedding slot 31 of insulating trip 30 is provided with, the embedded block 411 is embedded in embedding slot 31；Should
Bearing 42 is installed on the ring-shaped step 224 of above-mentioned accommodating cavity 223.
The rotor mechanism 50 includes impeller 51 and magnet steel 52, and the impeller 51 includes the first revolving part 511 and with plural number
Second revolving part 512 of individual flabellum 5121, first revolving part 511 has an annular chamber 5111, in the middle part of annular chamber 5111
A rotating shaft 5112 is vertically arranged with downwards, the rotating shaft 5112 is articulated in bearing 42 through above-mentioned locating ring 225, under rotating shaft 5112
End is in contact with the above-mentioned upper surface of pad 226, and second revolving part 512 is installed in outside the first revolving part 511；The magnet steel 52 is pacified
Loaded in annular chamber 5111, and it is right against foregoing circuit plate 41.
Design focal point of the present utility model is, by using metal base plate as fan bottom support member, and in metal
Insulating trip is set to separate circuit board with metal base plate on bottom plate, the design can not only prevent that magnet steel magnetic leaks in fan,
Improve fan performance；Moreover, relative to fan of the conventionally employed plastic cement bottom plate as support member, the fan structure is simpler,
Required part is less, meanwhile, the coil of stator mechanism on circuit board, can effectively reduce fan using printing-type wire laying mode
Thickness, realizes the slimming of fan.
It is described above, only it is preferred embodiment of the present utility model, not technical scope of the present utility model is made
Any limitation, thus it is every according to technical spirit of the present utility model to any trickle amendment made for any of the above embodiments, equivalent become
Change with modification, in the range of still falling within technical solutions of the utility model.
Claims (10)
1. a kind of slim brushless DC fan, it is characterised in that：Include pedestal, metal base plate, insulating trip, stator mechanism and turn
Clamp mechanism, the metal base plate is installed on base bottom, and axle sleeve is provided with the middle part of metal base plate；The insulating trip is installed around axle sleeve
In metal base plate upper surface；The stator mechanism includes being printed with the circuit board of coil windings and the axle being installed in above-mentioned axle sleeve
Hold, the circuit board is installed on insulating trip upper surface around axle sleeve, being provided between insulating trip and circuit board makes both fixed each other
The detent mechanism of position；The rotor mechanism includes being vertically arranged with a rotating shaft downwards in the middle part of impeller and magnet steel, the impeller, the rotating shaft pivot
It is connected in above-mentioned bearing, the magnet steel is installed in impeller, and is right against foregoing circuit plate.
2. slim brushless DC fan according to claim 1, it is characterised in that：The metal base plate include fixed part,
Supporting part and a plurality of supporting ribs, the fixed part are installed on base bottom corner；The supporting part is rounded, and positioned at metal
Bottom plate center position, forms void region between fixed part and supporting part；A plurality of supporting ribs be connected to supporting part and
Between fixed part.
3. slim brushless DC fan according to claim 2, it is characterised in that：The insulating trip upper and lower surface is set respectively
The embedding slot at a stretching insulating trip edge is equipped with, above-mentioned supporting rib is embedded in insulating trip lower surface embedding slot.
4. slim brushless DC fan according to claim 3, it is characterised in that：The board edge, which is protruded outward, to be set
The embedded block matched with insulating trip upper surface embedding slot is equipped with, the embedded block is embedded in embedding slot.
5. slim brushless DC fan according to claim 1, it is characterised in that：The detent mechanism includes being arranged at absolutely
Positioning hole on embolium and the locating piece for being arranged at circuit board lower surface, locating piece are inserted in positioning hole.
6. slim brushless DC fan according to claim 1, it is characterised in that：The impeller includes the first revolving part
With the second revolving part with a plurality of flabellums, above-mentioned rotating shaft is arranged on the first revolving part, and the second revolving part is installed in first
Outside revolving part.
7. slim brushless DC fan according to claim 1, it is characterised in that：There is an accommodating cavity in the axle sleeve,
In being provided with a ring-shaped step in the accommodating cavity, above-mentioned bearing is installed on the ring-shaped step.
8. slim brushless DC fan according to claim 7, it is characterised in that：The accommodating cavity porch is provided with certain
Position ring, accommodating cavity bottom is provided with a pad, and above-mentioned rotating shaft is articulated in bearing through locating ring, rotating shaft lower end and pad upper table
Face is in contact.
9. slim brushless DC fan according to claim 6, it is characterised in that：First revolving part of the impeller has
One annular chamber, above-mentioned rotating shaft is arranged in the middle part of the annular chamber straight down, and above-mentioned magnet steel is annularly installed in the annular chamber.
10. slim brushless DC fan according to claim 1, it is characterised in that：Divide in a ring on the metal base plate
It is furnished with a plurality of starting positioning holes.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621159034.6U CN206397761U (en) | 2016-11-01 | 2016-11-01 | Slim brushless DC fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621159034.6U CN206397761U (en) | 2016-11-01 | 2016-11-01 | Slim brushless DC fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206397761U true CN206397761U (en) | 2017-08-11 |
Family
ID=59506939
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621159034.6U Active CN206397761U (en) | 2016-11-01 | 2016-11-01 | Slim brushless DC fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206397761U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106567840A (en) * | 2016-11-01 | 2017-04-19 | 东莞永立电机有限公司 | Thin brushless direct-current fan |
| CN109356856A (en) * | 2018-12-19 | 2019-02-19 | 华中科技大学 | A kind of ultrathin centrifugal electric micropump |
| CN109958629A (en) * | 2017-12-22 | 2019-07-02 | 日本电产株式会社 | Pressure fan |
| CN110657112A (en) * | 2018-06-29 | 2020-01-07 | 南宁富桂精密工业有限公司 | Fan module and electronic device with same |
-
2016
- 2016-11-01 CN CN201621159034.6U patent/CN206397761U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106567840A (en) * | 2016-11-01 | 2017-04-19 | 东莞永立电机有限公司 | Thin brushless direct-current fan |
| CN109958629A (en) * | 2017-12-22 | 2019-07-02 | 日本电产株式会社 | Pressure fan |
| CN110657112A (en) * | 2018-06-29 | 2020-01-07 | 南宁富桂精密工业有限公司 | Fan module and electronic device with same |
| CN110657112B (en) * | 2018-06-29 | 2021-07-13 | 南宁富桂精密工业有限公司 | Fan module and electronic device with same |
| CN109356856A (en) * | 2018-12-19 | 2019-02-19 | 华中科技大学 | A kind of ultrathin centrifugal electric micropump |
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