CN2809282Y - Heat radiation fan with rotation speed regulating element on fan circuit board - Google Patents
Heat radiation fan with rotation speed regulating element on fan circuit board Download PDFInfo
- Publication number
- CN2809282Y CN2809282Y CN 200520018478 CN200520018478U CN2809282Y CN 2809282 Y CN2809282 Y CN 2809282Y CN 200520018478 CN200520018478 CN 200520018478 CN 200520018478 U CN200520018478 U CN 200520018478U CN 2809282 Y CN2809282 Y CN 2809282Y
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- Prior art keywords
- circuit board
- fan
- rotating speed
- rotation speed
- radiation fan
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Abstract
The utility model relates to a heat radiation fan which is provided with a rotation speed regulating element on a fan circuit board. The utility model comprises an outer casing which comprises an air outlet, an air inlet and a basal plate which is arranged at the central part, a circuit board which is fixedly arranged on the basal plate, a stator device which is arranged on the basal plate and is connected to a driving circuit of the circuit board, a rotor device which is arranged on the basal plate and is driven by the magnetic induction of the stator device to rotate. In addition, the outer edge of the rotor device is provided with a plurality of blades, a rotation speed regulating element is arranged on the circuit board and a regulating end of the rotation speed regulating element is led to be exposed out. Operators can directly rotate the rotation speed regulating element by tools, such as a screwdriver, etc. in the mode of being engaged with the rotation speed regulating element. Except users can conveniently regulate the rotation speed of the fan, the heat radiation fan does not need to be welded two conducting wires to connect the rotary speed controlling element which is arranged at the periphery or the periphery of the outer casing by the circuit board when the heat radiation fan is produced, so the arrangement of the conducting wires of the heat radiation fan is simplified.
Description
Technical field
The utility model relates to a kind of fan, relates in particular to a kind of radiation fan that is provided with rotating speed adjustment element on the fan circuit plate of simplifying the lead layout of radiation fan.
Background technique
Generally apply at present the radiation fan of personal host computer or servomechanism, its rotating speed is to be certain numerical value, and promptly after startup, this radiation fan is with certain speed running.Yet, the radiating fan rotation speed of this constant speed also can't meet the needs on the real world applications, for example after using one period long period continuously, thermal source such as chip, central processing unit (CPU) can heat up or working environment is in a condition of high temperature when (as in tropical area country), just must produce bigger cold wind dispels the heat, otherwise if working environment is in low temperature when (as in climate of frigid zone country), just need not use dynamical radiation fan.So present manufacturer, just the demand of necessary fit is installed the radiation fan of different efficient, causes puzzlement greatly on the assembly line.
Edge this, just there is a kind of radiation fan of adjustable rectification campaign fan rotating speed to ask the city, as shown in Figure 1, this radiation fan 30 comprises: a frame 31 is formed with an intake grill 311 and an exhaust outlet 312 on this frame 31, and in the central authorities of this frame 31, be provided with a substrate 313, and the outer rim of this substrate 313 and this frame 31 is outer intermarginal, is connected with many buttress bar 314; One circuit board 32 is installed on this substrate 313; One stator device 33 is installed on this substrate 313, and is connected to the drive circuit of this circuit board 32; One rotor arrangement 34 is to be installed on this substrate 313, and its outer rim is provided with a plurality of flabellums 341, and makes this rotor arrangement 34 be turned by these stator apparatus 33 magnetic strengths; And one rotating speed adjust element 35, be installed in the outer rim of this frame 31, and be connected on this circuit board 32 with two leads 36,37.Adjust this rotating speed by rotation and adjust element 35, as variable resistor, to adjust the rotating speed of this rotor arrangement 34.
But above-mentioned radiation fan is during fabrication, must circuit board 32 by the radiation fan centre on, two leads of extra soldered 36,37 also make these two leads 36,37 be soldered to rotating speed and adjust element 35 places.Yet, because the volume of this type of radiation fan is very little, except two necessary power lines 38 of fan, outside 39, also to arrange two leads 36 again, 37 are connected to device adjusts element 35 at the rotating speed of fan periphery, because generally in design, the lead 36 that circuit board 32 outwards can be connected, 37,38,39, be imbedded in the rib bar 314 that is connected in 31 of substrate 313 and framies, outwards draw again, because above-mentioned four leads 36～39 that are connected on the circuit board 32, the external diameter of its sum total is very thick, often is difficult for inserting on making in the ccontaining wire casing that rib bar 314 reserved, and therefore often causes the puzzlement in the manufacturing.In addition, rotating speed must be adjusted the corner portions that element 35 is assembled in fan drum body 31 bothersomely, thereby additionally increase assembly cost.
The model utility content
Technical problem underlying to be solved in the utility model is, overcome the defective of the radiation fan existence of existing adjustable rectification campaign fan rotating speed, and a kind of radiation fan that rotating speed is adjusted element that is provided with on the fan circuit plate is provided, it makes the operator directly rotate this rotating speed with tool engagement such as bottle openers and adjusts element, except that making things convenient for the user to adjust the operation of rotation speed of the fan, this radiation fan during fabrication, do not need to connect by two leads of circuit board welding again to be positioned at device, to simplify the lead layout of radiation fan at frame periphery or peripheral rotating speed control unit.
The technological scheme that its technical problem that solves the utility model adopts is:
A kind of radiation fan that is provided with rotating speed adjustment element on the fan circuit plate comprises: frame, contain exhaust outlet and intake grill, and be provided with substrate in central authorities; Circuit board is installed on this substrate; Stator apparatus is installed on this substrate, and is connected to the drive circuit of this circuit board; Rotor arrangement is installed on this substrate, and is turned by this stator apparatus magnetic strength, and in the outer rim of this rotor arrangement, is provided with a plurality of flabellums; It is characterized in that: on the described circuit board, be provided with rotating speed and adjust element, it is variable resistor that this rotating speed is adjusted element, and outside the adjustment end that makes this rotating speed adjust element is exposed to, makes the operator utilize tool engagement to rotate this rotating speed and adjust element.
The utility model solves its technical problem also can adopt following technological scheme:
A kind of radiation fan that is provided with rotating speed adjustment element on the fan circuit plate comprises: frame, contain exhaust outlet and intake grill, and be provided with substrate in central authorities; Circuit board is installed on this substrate; Stator apparatus is installed on this substrate, and is connected to the drive circuit of this circuit board; Rotor arrangement is installed on this substrate, and is turned by this stator apparatus institute magnetic strength, and in the outer rim of this rotor arrangement, is provided with a plurality of flabellums; It is characterized in that: described circuit board is provided with rotating speed and adjusts element, and outside the adjustment end that makes this rotating speed adjust element is exposed to, makes the operator utilize tool engagement to rotate this rotating speed and adjust element.
The utility model makes the operator directly rotate this rotating speed with tool engagement such as bottle openers and adjusts element, except that making things convenient for the user to adjust the operation of rotation speed of the fan, this radiation fan during fabrication, do not need to connect by two leads of circuit board welding again to be positioned at device, to simplify the lead layout of radiation fan at frame periphery or peripheral rotating speed control unit.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the schematic perspective view of existing radiation fan.
Fig. 2 is a schematic perspective view of the present utility model.
Fig. 3 is an enforcement circuit diagram of the present utility model.
The number in the figure explanation:
20 radiation fans, 21 framies, 211 exhaust outlets
212 intake grills, 213 substrates, 22 circuit boards
23 stator apparatus, 24 rotor arrangements, 241 flabellums
25 rotating speeds are adjusted element 251 and are adjusted end 251a shrinkage pool
26 bottle openers
30 radiation fans, 31 framies, 311 intake grills
312 exhaust outlets, 313 substrates, 314 rib bars
32 circuit boards, 33 stator apparatus, 34 rotor arrangements
341 flabellums, 35 rotating speeds are adjusted element
36,37,38,39 leads
Embodiment
See also Fig. 2, shown in Figure 3, the utility model relates to a kind of radiation fan 20 that rotating speed is adjusted element that is provided with on the fan circuit plate, comprising: a frame 21, contain an exhaust outlet 211 and an intake grill 212, and be provided with a substrate 213 in central authorities; One circuit board 22 is installed on this substrate 213; One stator device 23 is installed on this substrate 213, and is connected to the drive circuit of this circuit board 22; One rotor arrangement 24 is to be installed on this substrate 213, and is turned by 23 magnetic strengths of this stator apparatus, and in the outer rim of this rotor arrangement 24, is provided with a plurality of flabellums 241; It is characterized in that, this circuit board 22 is provided with a rotating speed and adjusts element 25, and outside the adjustment end 251 that makes this rotating speed adjust element 25 is exposed to, make the operator directly rotate this rotating speed and adjust element 25 with tool engagement such as bottle openers 26, except that making things convenient for the user to adjust the operation of rotation speed of the fan, this radiation fan during fabrication, do not need to connect by two leads of circuit board 22 welding again to be positioned at device at frame 21 peripheries or peripheral rotating speed adjustment element, with the lead layout of simplification radiation fan and the processing procedure of radiation fan.
Rotating speed of the present utility model is adjusted element 25, be meant variable resistor, contain a knob, make the adjustment end 251 of this knob, be concaved with a polygonal or irregular shrinkage pool 251a (as the shrinkage pool of a word, cross, hexagonal configuration), the user is after inserting an identical corresponding bottle opener 26, just operationally rotate this knob, to adjust its resistance value, whereby to adjust the rotating speed of radiation fan.
The utility model is provided with the radiation fan 20 that rotating speed is adjusted element on the fan circuit plate, wherein circuit layout can be as shown in Figure 3, make this circuit often be communicated with two contacts 1 of this stator apparatus 23,4, and make this circuit this rotating speed in parallel adjust element 25 (getting final product power transformation resistance VR1), make this rotating speed adjust the base stage that element 25 is connected to transistor Q1, and the emitter-base bandgap grading of this transistor Q1 connects two inductor coil L1, L2, and make two inductor coil L1, L2 is connected to the opposite end of stator apparatus 23 respectively, adjust element 25 by this rotating speed, to adjust the output voltage that circuit board drives turn-on transistor Q1, to reach the purpose of the rotating speed of adjusting radiation fan.But the applied circuit layout of the utility model is not limited to circuit diagram shown in Figure 3, so rotating speed adjustment element 25 also is not limited to variable resistor.
The utility model is provided with the radiation fan that rotating speed is adjusted element on the fan circuit plate, have following structure characteristic and advantage:
1. the utility model will be adjusted element in order to the rotating speed of adjusting radiating fan rotation speed, be connected on the circuit board, rotating speed is adjusted between element and circuit board, do not need additionally to connect again with lead, can get rid of existing radiation fan when assembling, must bury and be connected in the puzzlement that rotating speed is adjusted the lead between element and circuit board.
2. the utility model need not to adjust welding lead between element and circuit board at rotating speed, can effectively simplify processing procedure, reduce cost.
3. the utility model does not need rotating speed is adjusted the corner portions that element is assembled in the fan drum body bothersomely, does not need additionally to increase assembly cost fully.
The above, it only is preferred embodiment of the present utility model, be not that the utility model is done any pro forma restriction, every foundation technical spirit of the present utility model all still belongs in the scope of technical solutions of the utility model any simple modification, equivalent variations and modification that above embodiment did.
Claims (2)
1. one kind is provided with the radiation fan that rotating speed is adjusted element on the fan circuit plate, comprising:
Frame contains exhaust outlet and intake grill, and is provided with substrate in central authorities;
Circuit board is installed on this substrate;
Stator apparatus is installed on this substrate, and is connected to the drive circuit of this circuit board;
Rotor arrangement is installed on this substrate, and is turned by this stator apparatus magnetic strength, and in the outer rim of this rotor arrangement, is provided with a plurality of flabellums;
It is characterized in that:
On the described circuit board, be provided with rotating speed and adjust element, it is variable resistor that this rotating speed is adjusted element, and outside the adjustment end that makes this rotating speed adjust element is exposed to.
2. one kind is provided with the radiation fan that rotating speed is adjusted element on the fan circuit plate, comprising:
Frame contains exhaust outlet and intake grill, and is provided with substrate in central authorities;
Circuit board is installed on this substrate;
Stator apparatus is installed on this substrate, and is connected to the drive circuit of this circuit board;
Rotor arrangement is installed on this substrate, and is turned by this stator apparatus institute magnetic strength, and in the outer rim of this rotor arrangement, is provided with a plurality of flabellums;
It is characterized in that:
Described circuit board is provided with rotating speed and adjusts element, and outside the adjustment end that makes this rotating speed adjust element is exposed to.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520018478 CN2809282Y (en) | 2005-05-12 | 2005-05-12 | Heat radiation fan with rotation speed regulating element on fan circuit board |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200520018478 CN2809282Y (en) | 2005-05-12 | 2005-05-12 | Heat radiation fan with rotation speed regulating element on fan circuit board |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2809282Y true CN2809282Y (en) | 2006-08-23 |
Family
ID=36925466
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200520018478 Expired - Fee Related CN2809282Y (en) | 2005-05-12 | 2005-05-12 | Heat radiation fan with rotation speed regulating element on fan circuit board |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2809282Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101196197B (en) * | 2006-12-08 | 2011-01-26 | 鸿富锦精密工业（深圳）有限公司 | Air blower |
| CN101737345B (en) * | 2008-11-04 | 2013-05-29 | 建准电机工业股份有限公司 | Small-sized heat radiating fan |
-
2005
- 2005-05-12 CN CN 200520018478 patent/CN2809282Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101196197B (en) * | 2006-12-08 | 2011-01-26 | 鸿富锦精密工业（深圳）有限公司 | Air blower |
| CN101737345B (en) * | 2008-11-04 | 2013-05-29 | 建准电机工业股份有限公司 | Small-sized heat radiating fan |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20060823 Termination date: 20140512 |