CN1866155B - Apparatus for reducing fan noise when starting computer - Google Patents
Apparatus for reducing fan noise when starting computer Download PDFInfo
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- CN1866155B CN1866155B CN2006100447769A CN200610044776A CN1866155B CN 1866155 B CN1866155 B CN 1866155B CN 2006100447769 A CN2006100447769 A CN 2006100447769A CN 200610044776 A CN200610044776 A CN 200610044776A CN 1866155 B CN1866155 B CN 1866155B
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- 239000003990 capacitor Substances 0.000 claims description 16
- 230000017525 heat dissipation Effects 0.000 abstract 1
- 238000010438 heat treatment Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000047 product Substances 0.000 description 2
- 238000010586 diagram Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 239000012467 final product Substances 0.000 description 1
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Abstract
The disclosed noise reduction device for computer startup fan is to add a temporary master circuit for the fan between fan plug member on main-board and fan, which can analyze the work state both of main-board heat dissipation circuit and fan interface circuit to realize temporary master fan and transfer and avoid out-of-control noise. Compared with prior art, this invention has simple and reasonable design, and well noise reduction effect for wide application.
Description
1, technical field
The present invention relates to a kind of Computer Applied Technology, specifically apparatus for reducing fan noise when starting computer.
2, background technology
The in use existing problem of the computing machine of prior art is in tens seconds time of start just, electric fan meeting overspeed rotation thereby the very big noise of generation, except fan being caused noise bigger certain damage also can make the user produce complaint, influence the prestige of manufacturer and product.
Computing machine is that the mainboard of computing machine all adopts the 4PinCPU fan at present, by BIOS, utilizes the PWM technology, realizes the function of temperature control of heating radiator in the reason that produces fan noise of just starting shooting.After computer booting sent electricity, BIOS began self check, and heating radiator temperature control register is carried out initialization, and system takes over the CPU radiator fan and according to the temperature controlled fan rotating speed of current C PU.And the process that the time period that noise produces deposits to BIOS initialization temperature control at computer booting just, in tens seconds time after the computing machine start just, be in runaway condition at this process CPU radiator fan, fan is limiting velocity running, so noise is big, and fan very easily is subjected to overspeed operation and damages, and fan time out of control is different variant because of the BIOS mother matrix of each producer's mainboard and AMI, AWARD, usually at 5-15 in second.
3, summary of the invention
The objective of the invention is the noise that exists when starting shooting and apparatus for reducing fan noise when starting computer is provided at the active computer fan.
The objective of the invention is to realize in the following manner, set up fan at computer motherboard and fan and take over control circuit temporarily, fan is taken over control circuit by analyzing the duty that the mainboard heat ink temperature control realizes circuit and radiator fan interface circuit temporarily, realize that fan is taken over control and transfer is controlled temporarily, guarantee that fan is in slave mode all the time.Fan of the present invention is started shooting interim control circuit because the restriction of installing space wants the cube specification little, all adopts the paster components and parts, is controlled at the 50x20x2mm ranged space.
4, description of drawings
Accompanying drawing is the electrical block diagram of apparatus for reducing fan noise when starting computer.
5, embodiment
With reference to Figure of description to explaining below the work of the present invention.
It is to take over control circuit by add fan between fan plug connector on the computer motherboard and fan that fan in the apparatus for reducing fan noise when starting computer of the present invention is taken over control circuit temporarily temporarily, fan is taken over control circuit by analyzing the control that the mainboard heat ink temperature realizes circuit and radiator fan interface circuit duty temporarily, realize that fan is taken over control and transfer is controlled, avoid hypervelocity out of control to produce noise;
Fan is taken over control circuit temporarily and is made up of plug connector JP1-JP6, integrated circuit (IC) 1-IC2, resistance R 1-R10, capacitor C 1-C5, diode D1-D2, potentiometer W, wherein connector JP1-JP3 is connected with fan plug connector on the computer motherboard, and JP4-JP6 is connected with the plug connector of power supply fan, CPU fan and video card fan respectively;
1 pin of connector JP1 connects 12 pin of IC2; 1 pin of connector JP2 connects 2 pin of IC2; 1 pin of connector JP3 connects 5 pin of IC2; 2 pin of connector JP1 and 2 pin of JP4 also connect; 2 pin of connector JP2 and 2 pin of JP5 also connect; 2 pin of connector JP3 and 2 pin of JP6 also connect;
3 pin of JP1-JP3 and 14 pin of integrated circuit (IC) 1 also connect, 4 pin of JP1-JP3 ground connection in parallel, resistance R 1, R2, potentiometer W, R3, R4, diode D2 are connected between 14,2 pin of IC1, between 6,1 pin of diode D1 serial connection IC1, the moving contact of potentiometer W connects the positive pole of diode D1, and capacitor C 1 is serially connected between 2 pin and ground wire of IC1; Capacitor C 2 is serially connected between 3 pin and ground wire of IC1; Capacitor C 3 is serially connected between 8 pin and ground wire of IC1; Capacitor C 4 is serially connected between 11 pin and ground wire of IC1;
One end of capacitor C 5 links to each other other end ground connection with 12,13 pin of IC1 respectively; Resistance R 5, R6 are connected between 5 pin and ground wire of IC1, the 7 pin ground connection of IC1, and 4,10 pin of IC1 meet power supply VCC, and resistance R 8 is connected between power supply VCC and the capacitor C 3;
Resistance R 10 is connected between capacitor C 5 and the positive source;
6 pin ground connection of integrated circuit (IC) 2, the tie point of the 9-11 pin of IC2 and resistance R 7, R9 also connects; 14 pin of IC2 patch 1 pin of fitting JP4; 15 pin of IC2 patch 1 pin of fitting JP5 respectively; 4 pin of IC2 patch 1 pin of fitting JP6 respectively; The 4 pin ground connection of JP4-JP6,3 pin parallel connections, wherein the model of integrated circuit is respectively NE556 and CD4053.
Its processing and fabricating of apparatus for reducing fan noise when starting computer of the present invention is very simple and convenient, processing and fabricating gets final product shown in the by specification accompanying drawing, wherein the reference model of integrated circuit (IC) 1 and IC2 is respectively: NE556 and CD4053, other original papers are the universal electric product.
Apparatus for reducing fan noise when starting computer of the present invention is compared with existing technology, have reasonable in design, simple in structure, be easy to processing, volume is little, easy to use, the characteristics such as work of one or more fans can be controlled simultaneously, the service life of fan noise and prolongation fan can be effectively reduced. Thereby, have good value for applications.
Claims (1)
1. apparatus for reducing fan noise when starting computer, it is characterized in that add fan between fan plug connector on the computer motherboard and fan takes over control circuit temporarily, fan is taken over control circuit by analyzing the control that the mainboard heat ink temperature realizes circuit and radiator fan interface circuit duty temporarily, realize that fan is taken over control and transfer is controlled, avoid hypervelocity out of control to produce noise; Fan is taken over control circuit temporarily and is made up of plug connector JP1-JP6, integrated circuit (IC) 1-IC2, resistance R 1-R10, capacitor C 1-C5, diode D1-D2, potentiometer W, wherein connector JP1-JP3 is connected with fan plug connector on the computer motherboard, and JP4-JP6 is connected with the plug connector of power supply fan, CPU fan and video card fan respectively;
1 pin of connector JP1 connects 12 pin of IC2; 1 pin of connector JP2 connects 2 pin of IC2; 1 pin of connector JP3 connects 5 pin of IC2; 2 pin of connector JP1 and 2 pin of JP4 also connect; 2 pin of connector JP2 and 2 pin of JP5 also connect; 2 pin of connector JP3 and 2 pin of JP6 also connect;
3 pin of JP1-JP3 and 14 pin of integrated circuit (IC) 1 also connect, 4 pin of JP1-JP3 ground connection in parallel, resistance R 1, R2, potentiometer W, R3, R4, diode D2 are connected between 14,2 pin of IC1, and between 6,1 pin of diode D1 serial connection IC1, the moving contact of potentiometer W connects the positive pole of diode D1;
Capacitor C 1 is serially connected between 2 pin and ground wire of IC1; Capacitor C 2 is serially connected between 3 pin and ground wire of IC1; Capacitor C 3 is serially connected between 8 pin and ground wire of IC1; Capacitor C 4 is serially connected between 11 pin and ground wire of IC1;
One end of capacitor C 5 links to each other other end ground connection with 12,13 pin of IC1 respectively;
Resistance R 5, R6 are connected between 5 pin and ground wire of IC1, the 7 pin ground connection of IC1, and 4,10 pin of IC1 meet power supply VCC, and resistance R 8 is connected between power supply VCC and the capacitor C 3;
Resistance R 10 is connected between capacitor C 5 and the positive source;
6 pin ground connection of integrated circuit (IC) 2, the tie point of the 9-11 pin of IC2 and resistance R 7, R9 also connects; 14 pin of IC2 patch 1 pin of fitting JP4; 15 pin of IC2 patch 1 pin of fitting JP5; 4 pin of IC2 patch 1 pin of fitting JP6;
The 4 pin ground connection of JP4-JP6,3 pin parallel connections;
The model of integrated circuit (IC) 1 is NE556, and the model of IC2 is CD4053.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100447769A CN1866155B (en) | 2006-06-15 | 2006-06-15 | Apparatus for reducing fan noise when starting computer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2006100447769A CN1866155B (en) | 2006-06-15 | 2006-06-15 | Apparatus for reducing fan noise when starting computer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1866155A CN1866155A (en) | 2006-11-22 |
| CN1866155B true CN1866155B (en) | 2010-07-21 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2006100447769A Expired - Fee Related CN1866155B (en) | 2006-06-15 | 2006-06-15 | Apparatus for reducing fan noise when starting computer |
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| Country | Link |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2443421Y (en) * | 2000-06-23 | 2001-08-15 | 保锐科技股份有限公司 | Computer power supply device with heat radiation and noise-proof control |
| KR20020096054A (en) * | 2001-06-14 | 2002-12-31 | 박종영 | Low noise computer fan control method |
| CN1570759A (en) * | 2003-04-03 | 2005-01-26 | 三洋电机株式会社 | Liquid crystal projector |
| CN1838015A (en) * | 2006-04-27 | 2006-09-27 | 浪潮电子信息产业股份有限公司 | Noise reducer for computer fan |
-
2006
- 2006-06-15 CN CN2006100447769A patent/CN1866155B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN2443421Y (en) * | 2000-06-23 | 2001-08-15 | 保锐科技股份有限公司 | Computer power supply device with heat radiation and noise-proof control |
| KR20020096054A (en) * | 2001-06-14 | 2002-12-31 | 박종영 | Low noise computer fan control method |
| CN1570759A (en) * | 2003-04-03 | 2005-01-26 | 三洋电机株式会社 | Liquid crystal projector |
| CN1838015A (en) * | 2006-04-27 | 2006-09-27 | 浪潮电子信息产业股份有限公司 | Noise reducer for computer fan |
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| Publication number | Publication date |
|---|---|
| CN1866155A (en) | 2006-11-22 |
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Granted publication date: 20100721 Termination date: 20160615 |