CN201090475Y - Single stator external pole type heat radiating fan - Google Patents
Single stator external pole type heat radiating fan Download PDFInfo
- Publication number
- CN201090475Y CN201090475Y CNU2007201391277U CN200720139127U CN201090475Y CN 201090475 Y CN201090475 Y CN 201090475Y CN U2007201391277 U CNU2007201391277 U CN U2007201391277U CN 200720139127 U CN200720139127 U CN 200720139127U CN 201090475 Y CN201090475 Y CN 201090475Y
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- CN
- China
- Prior art keywords
- circuit board
- basal wall
- unit
- hollow part
- pedestal
- 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 - Fee Related
Links
- 230000001939 inductive effect Effects 0.000 claims description 29
- 230000005855 radiation Effects 0.000 claims description 28
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims description 24
- 125000006850 spacer group Chemical group 0.000 claims description 3
- 230000000694 effects Effects 0.000 description 15
- 230000000903 blocking effect Effects 0.000 description 7
- 238000000034 method Methods 0.000 description 6
- 230000006641 stabilisation Effects 0.000 description 5
- 238000011105 stabilization Methods 0.000 description 5
- 230000005284 excitation Effects 0.000 description 3
- 230000006698 induction Effects 0.000 description 3
- 230000002964 excitative effect Effects 0.000 description 2
- 238000010587 phase diagram Methods 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000009977 dual effect Effects 0.000 description 1
- 230000009183 running Effects 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Images
Abstract
Disclosed is a single-stator external-pole radiator fan, comprising a base, a rotor unit, a circuit unit and a stator unit. The base has a base wall which is provided with a perforated hollowed-out part. The circuit board of the circuit unit is arranged into the hollowed-out part on the base wall, ensuring the stator unit and a sensor unit both electrically connected to the circuit board to be lowered; besides, a sensing magnetic ring can be designed to close to the base wall (that is, the sensing magnetic ring is lowered). Accordingly, the stator unit and the sensor unit can be mutually sensed with the lower sensing magnetic ring, and the rotation stability of the rotation unit is improved.
Description
[technical field]
The utility model relates to a kind of radiation fan, particularly relates to a kind of single stator external pole type radiation fan.
[background technique]
Present electrical home appliances is a main flow with compact design direction all, but general appliance and electronic tends to produce high heat when long-time use.For taking away heat immediately, meet compact requirement again simultaneously, therefore, the external pole type radiation fan just therefrom arises at the historic moment, and forms a kind of fan design of new kenel.
Consult Fig. 1,2, existing single stator external pole type radiation fan 1 includes a hollow shape housing 11, to be located at rotor 12 in this housing 11, energization excitations rotationally and to drive these rotor 12 rotational stator 13, with induction and be located on these housing 11 inside bottom surface and with this stator 13 and form the circuit board 14 that is electrically connected, and one is electrically connected on this circuit board 14 equally and faces the sense cell 15 of this rotor 12.
This rotor 12 has that an axle 120, is located at wheel hub 121 on this axle 120, several pieces are located at the blade 122 of these wheel hub 121 outer rims, and a magnet ring 123 that is located on described blade 122 outer rims.When this stator 13 behind these circuit board 14 energization excitations, just can utilize the magnetic mutual repulsion effect to drive the magnet ring 123 of this rotor 12, and then blade 122 rotations of this rotor 12 of interlock.
15 of this sense cells can continue the change in polarity of this magnet ring 123 of induction in the process of these magnet ring 123 rotations, and signal is delivered to this circuit board 14, so that this stator 13 continues energization excitation and this rotor 12 is promoted rotation with same direction.
Yet in the above-mentioned design, because the magnet ring 123 of this rotor 12 is to be located on described blade 122 outer rims, therefore, when in a single day blade 122 will extend outward area, this magnet ring 123 also will be along with enlarging path length, not only material and weight increase, and overall space also will expand outwardly, effectively reduced volume.
Consult Fig. 3,, just magnet ring shown in Figure 2 123 is arranged to be fixedly arranged on described blade 122 root edges in order to solve above-mentioned shortcoming, allow blade 122 area that extend outward whereby, improve radiating effect, at this moment, this magnet ring 123 will be close to the inside bottom surface of this housing 11.Reviewing this stator 13 can be because of being arranged on this circuit board 14 with 15 of sense cells, and this circuit board 14 is again to be arranged on the inside bottom surface of this housing 11, cause this stator 13 and sense cell 15 compared to magnet ring 123, have more the thickness of this circuit board 14 in the height aspect, cause this sense cell 15 to be difficult for positively responding to the change in polarity of this magnet ring 123 on the contrary, this stator 13 also is difficult for positively driving this magnet ring 123 rotations with the magnetic mutual repulsion effect, the related rotation start rather unstable that makes this rotor 12.
Therefore, how when this magnet ring 123 is set to be close to the inside bottom surface of this housing 11, also can reach this stator 13 and sense cell 15 and magnet ring 123 purposes of induction really simultaneously, just become relevant dealer and be badly in need of the target of making great efforts to study.
[model utility content]
The purpose of this utility model is in order to provide a kind of rotational stabilization preferable single stator external pole type radiation fan.
For achieving the above object, single stator external pole type radiation fan of the present utility model comprises rotor unit, that a pedestal, is hubbed at this pedestal and is arranged in circuit unit in this pedestal, and one drives this rotor unit rotational stator unit.
This pedestal has a basal wall, and a leg that is based on this basal wall, and this basal wall matches with leg and defines a containing space, and this basal wall has one and is the hollow part that connects shape.This rotor unit has one and is hubbed at the wheel hub on the basal wall of this pedestal, the blade that several pieces spacer rings are located at this wheel hub periphery, and an inductive magnetic ring of being located at described blade periphery.This circuit unit has a circuit board that is arranged in the hollow part of this basal wall, and one be electrically connected on this circuit board and towards this inductive magnetic ring to respond to the sense cell of its polarity.This stator unit is to form with this circuit board to be electrically connected, and by this circuit board energising and make this stator unit produce excitatory phenomenon, and then interacts with the inductive magnetic ring of this rotor unit, rotates to promote this inductive magnetic ring.
Beneficial functional of the present utility model is: by offer hollow part on this basal wall, be arranged in wherein for this circuit board, stator unit and sense cell that feasible electrical connection is arranged on this circuit board can both be along with reducing height, this inductive magnetic ring of arranging in pairs or groups again also can be designed as this basal wall, therefore, this stator unit and sense cell just can be responded to mutually with highly lower inductive magnetic ring really, improve the rotational stabilization of this rotor unit.
[description of drawings]
Fig. 1 is a plan view, and existing single stator external pole type radiation fan is described, omits and draws its housing end face, so that observe the enclosure interior member.
Fig. 2 is a side view cutaway drawing, the single stator external pole type radiation fan that aid illustration is shown in Figure 1.
Fig. 3 is a side view cutaway drawing, and another kind of existing single stator external pole type radiation fan is described.
Fig. 4 is a three-dimensional exploded view, and first preferred embodiment of the utility model single stator external pole type radiation fan is described.
Fig. 5 is an assembled sectional view, first preferred embodiment that aid illustration is shown in Figure 4.
Fig. 6 is a clamping phase diagram, and the interlocking of working in coordination of the circuit board utilization plant part of this first preferred embodiment and hollow part periphery is described, allows a side of this circuit board produce the spacing effect of blocking whereby.
Fig. 7 is a clamping phase diagram, illustrates that circuit board shown in Figure 6 utilizes the interlocking of working in coordination of clip piece and hollow part periphery, allows the opposite side of this circuit board also produce the spacing effect of blocking whereby.
Fig. 8 is a three-dimensional exploded view, and second preferred embodiment of the utility model single stator external pole type radiation fan is described.
Fig. 9 is a stereogram, and the 3rd preferred embodiment of the utility model single stator external pole type radiation fan is described.
[embodiment]
Below in conjunction with drawings and Examples the utility model is elaborated.Before the utility model is described in detail, be noted that in the following description similar elements is to represent with identical numbering.
Consult Fig. 4,5, first preferred embodiment of the utility model single stator external pole type radiation fan 2, comprise rotor unit 22, that a pedestal 21, is hubbed at this pedestal 21 and be arranged in circuit unit 23 in this pedestal 21, and one drives these rotor unit 22 rotational stator unit 24.
This pedestal 21 has a basal wall 211, and one be based on this basal wall 211 and the leg 212 that generally takes the shape of the letter U, and this basal wall 211 matches with leg 212 and defines a containing space 213, and this basal wall 211 has one and is the hollow part 217 that connects shape.
This rotor unit 22 has one and is hubbed at the blade 222 that wheel hub 221, several pieces spacer rings on the basal wall 211 of this pedestal 21 are located at these wheel hub 221 peripheries, and an inductive magnetic ring 223 of being located at described blade 222 peripheries.
This wheel hub 221 has a center hub portion 224 that is hubbed on the basal wall 211 of this pedestal 21, several are by this outward extending rib of 224 interval radiation portion of center hub portion 225, and an articulating is sheathed on the annulus portion 226 in its outside in described rib portion's 225 ends and this inductive magnetic ring 223 of confession, each blade 222 has a top portion 227 that is fixedly arranged on this annulus portion 226 and inductive magnetic ring 223 both apical margins simultaneously, one is fixedly arranged on the bottom leaf portion 228 of this annulus portion 226 and inductive magnetic ring 223 both root edges simultaneously, and one connects this top, bottom leaf portion 227,228 and be positioned at the middle period portion 229 of these annulus portion 226 inboards.
This circuit unit 23 has the circuit board 231 in the hollow part 217 that a blocking is arranged in this basal wall 211, and one is electrically connected on this circuit board 231 and towards the sense cell 232 of this inductive magnetic ring 223 to respond to its polarity.
This circuit board 231 has one and supplies this sense cell 232 to be electrically connected the body 233 that is provided with stator unit 24, and is located at a clip piece 234 and a plant part 235 of these body 233 peripheries and office two opposite sides.
When present embodiment is desired to assemble, can at the very start this rotor unit 22 be hubbed on the basal wall 211 of this pedestal 21, or just this rotor unit 22 is hubbed on the basal wall 211 of this pedestal 21 at last up to assembling process, the neither assembling process that can influence this circuit board 231 of dual mode is not so just give unnecessary details the Assembly Action of this rotor unit 22 in detail at this.
Consult Fig. 6, stretch the cantilever portion 237 that places this containing space 213 and elasticity involution by these body 233 peripheries, and one connects this cantilever portion 237 and touches the contact segment 239 that is butted on these hollow part 217 peripheries separatably but this clip piece 234 has one.235 of this plant parts can be inserted in this containing space 213 and with the interlocking of working in coordination of these hollow part 217 peripheries.
Assembling process with this circuit board 231 of next detailed description:
Consult Fig. 6,7 in the lump, at first the plant part 235 with this circuit board 231 is inserted in this containing space 213 in the inclination mode, just can utilize these hollow part 217 peripheries and form the interlocking of working in coordination, allow a side of this circuit board 231 produce the spacing effect of blocking earlier whereby.And then this clip piece 234 moved (shown in arrow among Fig. 6) to these hollow part 217 directions, at this moment, this clip piece 234 just can be along these hollow part 217 periphery slippages, and this cantilever portion 237 is out of shape in compressing gradually, when the no longer oppressed distortion of this cantilever portion 237, will involution be state originally, and this contact segment 239 just can touch and be butted on this hollow part 217 peripheries, and then make an other side of this circuit board 231 also produce the spacing effect of blocking, mode makes that this circuit board 231 is that blocking is arranged in this hollow part 217 whereby.
As shown in Figure 5, through behind the above-mentioned assembling process, when these single stator external pole type radiation fan 2 energising runnings, this stator unit 24 just can make this stator unit 24 produce excitatory phenomenon by these circuit board 231 energisings, and then interact with the inductive magnetic ring 223 of this rotor unit 22, to promote this inductive magnetic ring 223 rotations.
Therefore, present embodiment single stator external pole type radiation fan 2 has the advantage of the following stated on reality is used:
(1) improve the rotational stabilization of this rotor unit 22:
Present embodiment is by offer hollow part 217 on this basal wall 211, use for this circuit board 231 and be arranged in wherein, the stator unit 24 that feasible electrical connection is arranged on this circuit board 231 can both be along with reducing height with sense cell 232, this inductive magnetic ring 223 of arranging in pairs or groups is again established by the top of described blade 222, bottom leaf portion 227,228 folders and wherein and is more pressed close to this basal wall 211 (just make the height of this inductive magnetic ring 223 lower), therefore, just can respond to mutually with highly lower inductive magnetic ring 223 really, improve the rotational stabilization of this rotor unit 22.
(2) improve radiating effect, be applicable to narrow high thermal environment:
Established wherein by the top of described blade 222, bottom leaf portion 227,228 folders by this inductive magnetic ring 223, therefore, the top of described blade 222, bottom leaf portion 227,228 just can not limited to by this inductive magnetic ring 223, and can be effectively outwards the horizontal expansion enlarged-area, improve radiating effect, can't relatedly make this inductive magnetic ring 223, pedestal 21 also along with horizontal expansion.Generally speaking, this single stator external pole type radiation fan 2 not only can improve radiating effect, and the material of this inductive magnetic ring 223 and weight can not increase yet, even this pedestal 21 need not enlarge width yet, quite is applicable to narrow high thermal environment.
Consult Fig. 8, second preferred embodiment of the utility model single stator external pole type radiation fan 2, roughly be similar to aforementioned first preferred embodiment, different places are: the circuit board 231 of present embodiment does not have the design of clip piece 234 and plant part 235, and the pedestal 21 of present embodiment has more one and stretches the prominent wall 214 that places in this containing space 213 by this basal wall 211, and several are extended the hollow shape protruded stigma 216 (Fig. 8 only draws because of the visual angle relation) that is provided with in this hollow part 217 by these prominent wall 214 peripheries, the body 233 of this circuit board 231 is to touch to be butted on the described protruded stigma 216, and this circuit board 231 has more several perforation 236 that connects this body 233 and corresponding described protruded stigma 216, cooperating, and this circuit board 231 is arranged in from lower to upper in the hollow part 217 of this basal wall 211 by the stretched through perforation 236 and screw togather and be fixed in protruded stigma 216 inside of several screw pieces 25.
By above-mentioned design, present embodiment is except can reaching the contained effect of first preferred embodiment, and provide the assembling mode that is different from first preferred embodiment, utilizing several screw pieces 25 that the body 233 of circuit board 231 is given corresponding screwing togather with the protruded stigma 216 of this pedestal 21 is fixed together, form many contact binding sites, make when this circuit board 231 is arranged in the hollow part 217 of this basal wall 211, can produce more firmly, the not easily separated effect that comes off.
Consult Fig. 9, the 3rd preferred embodiment of the utility model single stator external pole type radiation fan 2, roughly be similar to aforementioned first preferred embodiment, different places are: present embodiment is the mode of establishing that connects that screws togather that the blocking of first preferred embodiment is connect the mode of establishing and second preferred embodiment, combined and used simultaneously, therefore, present embodiment can utilize the design of this clip piece 234 and plant part 235 on the one hand, and this circuit board 231 is equipped in the hollow part 217 of this basal wall 211, on the other hand, then can utilize the design of screw piece 25 and protruded stigma 216, in this circuit board 231 is arranged in the hollow part 217 of this basal wall 211, produce many contact binding sites, therefore, present embodiment not only can reach aforementioned first really, the effect that two preferred embodiments are contained simultaneously also can be so that the effect that this circuit board 231 is equipped in this hollow part 217 be more excellent.
Conclude above-mentioned, the utility model single stator external pole type radiation fan 2, by on this basal wall 211, offering hollow part 217, so as to being arranged in wherein for this circuit board 231, the stator unit 24 that feasible electrical connection is arranged on this circuit board 231 can both be along with reducing height with sense cell 232, this inductive magnetic ring 223 of arranging in pairs or groups again also can be designed as this basal wall 211 (just make the height of this inductive magnetic ring 223 lower), therefore, this stator unit 24 just can be responded to mutually with highly lower inductive magnetic ring 223 really with sense cell 232, improves the rotational stabilization of this rotor unit 22.
Moreover the top of each blade 222, bottom leaf portion 227,228 can not limited to by this inductive magnetic ring 223 yet, and can be effectively outwards the horizontal expansion enlarged-area, improve radiating effect.
In addition, also can utilize the design of this clip piece 234 and plant part 235, and this circuit board 231 is equipped in the hollow part 217 of this basal wall 211, or also can arrange in pairs or groups again and utilize the design of screw piece 25 and protruded stigma 216, make this circuit board 231 be arranged in the hollow part 217 of this basal wall 211, produce many contact binding sites, and then allow this circuit board 231 be arranged in more securely in the hollow part 217 of this basal wall 211, so can reach the purpose of this utility model really.
Claims (6)
1. single stator external pole type radiation fan comprises a pedestal, and is hubbed at rotor unit, a circuit unit on this pedestal, and a stator unit that is electrically connected with this circuit unit, it is characterized in that:
This pedestal has a basal wall, an and leg that is based on this basal wall, this basal wall matches with leg and defines a containing space, and this basal wall has one and is the hollow part that connects shape, this rotor unit has a wheel hub that is hubbed on the basal wall of this pedestal, several pieces spacer rings are located at the blade of this wheel hub periphery, an and inductive magnetic ring of being located at described blade periphery, this circuit unit has a circuit board that is arranged in the hollow part of this basal wall, and one be electrically connected on this circuit board and towards this inductive magnetic ring responding to the sense cell of its polarity, this stator unit is to form with this circuit board to be electrically connected.
2. single stator external pole type radiation fan as claimed in claim 1 is characterized in that: the circuit board of this circuit unit is to be equipped in the hollow part of this basal wall.
3. single stator external pole type radiation fan as claimed in claim 2, it is characterized in that: the circuit board of this circuit unit has one and supplies this sense cell to be electrically connected the body that is provided with stator unit, and be located at a clip piece and a plant part of this body periphery, but this clip piece has one stretches the cantilever portion that places this containing space and elasticity involution by this body periphery, reach one and connect this cantilever portion and touch the contact segment that is butted on this hollow part periphery separatably, this plant part then is inserted in to work in coordination in this containing space and with this hollow part periphery and is embedded.
4. single stator external pole type radiation fan as claimed in claim 3, it is characterized in that: this pedestal also has one and stretches the prominent wall that places in this containing space by this basal wall, and several are extended the hollow shape protruded stigma that is provided with in this hollow part by this prominent wall periphery, the body of this circuit board touches and is butted on the described protruded stigma, and this circuit board also has several perforation that connects this body and corresponding described protruded stigma, establish and be fixed in protruded stigma inside to cooperate, and this circuit board is arranged in the hollow part of this basal wall by stretched through perforation and spiral shell of several screw pieces.
5. single stator external pole type radiation fan as claimed in claim 1, it is characterized in that: this pedestal also has one and stretches the prominent wall that places in this containing space by this basal wall, and several are extended setting and are formed the hollow shape protruded stigma of span with this basal wall by this prominent wall periphery in this hollow part, the circuit board of this circuit unit has this sense cell of confession and is electrically connected setting with stator unit and touches the body that is butted on the described protruded stigma, and several connect the perforation of this body and corresponding described protruded stigma, cooperating, and this circuit board is arranged in the hollow part of this basal wall by the stretched through perforation and screw togather and be fixed in protruded stigma inside of several screw pieces.
6. as each described single stator external pole type radiation fan in the claim 3 to 5, it is characterized in that: the wheel hub of this rotor unit has a center hub portion that is hubbed on the basal wall of this pedestal, several are by this outward extending rib of interval radiation portion of center hub portion, and an articulating is sheathed on the annulus portion in its outside in described rib portion's end and this inductive magnetic ring of confession, each blade has a top portion that is fixedly arranged on this annulus portion and inductive magnetic ring apical margin simultaneously, one is fixedly arranged on the bottom leaf portion of this annulus portion and inductive magnetic ring root edge simultaneously, and one connects this top, bottom leaf portion and be positioned at the middle period portion of this annulus portion inboard.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201391277U CN201090475Y (en) | 2007-08-22 | 2007-08-22 | Single stator external pole type heat radiating fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2007201391277U CN201090475Y (en) | 2007-08-22 | 2007-08-22 | Single stator external pole type heat radiating fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201090475Y true CN201090475Y (en) | 2008-07-23 |
Family
ID=39862236
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2007201391277U Expired - Fee Related CN201090475Y (en) | 2007-08-22 | 2007-08-22 | Single stator external pole type heat radiating fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201090475Y (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133371A (en) * | 2011-12-05 | 2013-06-05 | 技嘉科技股份有限公司 | Fan module |
| CN103375434A (en) * | 2012-04-20 | 2013-10-30 | 协禧电机股份有限公司 | Cooling fan |
| CN103372651A (en) * | 2012-04-12 | 2013-10-30 | 富瑞精密组件（昆山）有限公司 | Fan blade producing method and fan device |
| CN108702047A (en) * | 2016-02-23 | 2018-10-23 | 西门子股份公司 | rotor and motor |
-
2007
- 2007-08-22 CN CNU2007201391277U patent/CN201090475Y/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103133371A (en) * | 2011-12-05 | 2013-06-05 | 技嘉科技股份有限公司 | Fan module |
| CN103372651A (en) * | 2012-04-12 | 2013-10-30 | 富瑞精密组件（昆山）有限公司 | Fan blade producing method and fan device |
| CN103375434A (en) * | 2012-04-20 | 2013-10-30 | 协禧电机股份有限公司 | Cooling fan |
| CN103375434B (en) * | 2012-04-20 | 2015-08-12 | 协禧电机股份有限公司 | Radiation fan |
| CN108702047A (en) * | 2016-02-23 | 2018-10-23 | 西门子股份公司 | rotor and motor |
| CN108702047B (en) * | 2016-02-23 | 2021-06-15 | 劳斯莱斯德国有限两合公司 | Rotor and motor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20080723 Termination date: 20160822 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |