直流降温电扇 San Ace 60

本文对San Ace 60系列散热风扇进行了电气特性测试。实验表明：该24V直流风扇需7V以上启动电压，工作电流55mA（24V时）。通过上拉电阻测量到转速信号为24V方波，频率140Hz（24V时）。结合光强传感器验证发现：9叶片风扇每转产生2个方波周期，转速与电压呈线性关系。Python采集数据绘制了电压-频率特性曲线，显示电机转速随工作电压升高而线性增加。该测试为风扇应用提供了重要参数依据。

卓晴

1406人浏览 · 2025-07-27 21:24:52

卓晴 · 2025-07-27 21:24:52 发布

简介：本文对San Ace 60系列散热风扇进行了电气特性测试。实验表明：该24V直流风扇需7V以上启动电压，工作电流55mA（24V时）。通过上拉电阻测量到转速信号为24V方波，频率140Hz（24V时）。结合光强传感器验证发现：9叶片风扇每转产生2个方波周期，转速与电压呈线性关系。Python采集数据绘制了电压-频率特性曲线，显示电机转速随工作电压升高而线性增加。该测试为风扇应用提供了重要参数依据。

关键词： 散热风扇，工作特性，9G0612P4S001

San AceDC Fan San Ace 60 9G0612P4S001
109P0624H701

散热风扇基本特性

01 散热风扇

一、散热风扇

手边这个散热风扇，型号为 San Ace 60的系列风扇。额定工作电压为 24V，工作电流为 60mA。为了对它能够更好的应用，下面对于它的工作模式进行初步测量。查看一下它对应的工作特点。连线为三芯接口。红色和黑色为工作电压。黄色为转速传感器信号。现在不知道这个转速传感器输出什么样的信号。

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二、测量结果

将风扇通过面包板连接DH1766直流电源。设置 DH1766 提供24V的工作电压。打开电压之后，风扇开始运行。可以看到电扇的工作电流为55mA左右。

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使用示波器直接连接黄色速度信号线，开始没有测量到任何信号。这里给它增加一个51k欧姆的电阻，上拉到24V。此时，可以测量到输出的速度信号。使用示波器测量速度信号波形。查看一下信号的幅度和频率。示波器显示信号的波形为方波信号。信号的占空比为50%，幅度为 24V。利用DM3068数字万用表测量信号的频率为 140Hz左右。使用之前自制的光强传感器，探头测量扇叶之后的亮度变化，可以获得亮度变化的波形，这样可以知道信号传感器输出的方波信号与风扇转速之间的关系。风扇扇叶是9个，对比方波信号与光强信号，可以看到，在两个方波信号周期之内，光强波动九次，因此，我们可以推断输出的速度信号是风扇转速的两倍，也就是风扇旋转一周，方波信号输出两个脉冲。

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▲ 图1.2.1 速度信号波形

▲ 图1.2.1 速度信号波形

三、工作电压与转速

设置DH1766输出 12V电压。此时工作电流为 30mA左右。电扇仍然可以旋转，只是转速降低了。下面测量一下风扇工作电压对于转速与工作电流的影响。

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使用DH1766提供从0V到24V的工作电压，通过DM3068测量风扇的转速信号频率。在电压超过7V之后，电机才开始转动。前面的数据应该是信号线上的干扰信号的频率。可以看到电机转速大体上与工作电压之间呈现线性增加的规律。
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▲ 图1.3.1 工作电压与转速信号频率之间的关系

▲ 图1.3.1 工作电压与转速信号频率之间的关系

#!/usr/local/bin/python
# -*- coding: gbk -*-
#============================================================
# TEST1.PY                     -- by Dr. ZhuoQing 2025-07-27
#
# Note:
#============================================================
from headm import *
from tsmodule.tsvisa        import *
dm3068open()
vdim = linspace(0, 24, 100)
idim = []
fdim = []
for v in vdim:
    dh1766volt1(v)
    time.sleep(1.5)
    f = dm3068freq()
    c = dh1766curr1()
    fdim.append(f)
    idim.append(c)
    tspsave("meas", vdim=vdim, idim=idim, fdim=fdim)
    printff(v, f, c)
plt.plot(vdim, fdim, lw=3)
plt.xlabel("Voltage(V)", color="steelblue", fontsize=16)
plt.ylabel("Frequency(Hz)", color="steelblue", fontsize=16)
plt.grid(True)
plt.tight_layout()
plt.show()
#------------------------------------------------------------
#        END OF FILE : TEST1.PY
#============================================================

vdim=[0.0000,0.2424,0.4848,0.7273,0.9697,1.2121,1.4545,1.6970,1.9394,2.1818,2.4242,2.6667,2.9091,3.1515,3.3939,3.6364,3.8788,4.1212,4.3636,4.6061,4.8485,5.0909,5.3333,5.5758,5.8182,6.0606,6.3030,6.5455,6.7879,7.0303,7.2727,7.5152,7.7576,8.0000,8.2424,8.4848,8.7273,8.9697,9.2121,9.4545,9.6970,9.9394,10.1818,10.4242,10.6667,10.9091,11.1515,11.3939,11.6364,11.8788,12.1212,12.3636,12.6061,12.8485,13.0909,13.3333,13.5758,13.8182,14.0606,14.3030,14.5455,14.7879,15.0303,15.2727,15.5152,15.7576,16.0000,16.2424,16.4848,16.7273,16.9697,17.2121,17.4545,17.6970,17.9394,18.1818,18.4242,18.6667,18.9091,19.1515,19.3939,19.6364,19.8788,20.1212,20.3636,20.6061,20.8485,21.0909,21.3333,21.5758,21.8182,22.0606,22.3030,22.5455,22.7879,23.0303,23.2727,23.5152,23.7576,24.0000]
idim=[0.0000,0.0000,0.0000,0.0000,0.0000,0.0001,0.0002,0.0003,0.0006,0.0010,0.0014,0.0022,0.0024,0.0029,0.0038,0.0041,0.0043,0.0045,0.0061,0.0046,0.0047,0.0230,0.0049,0.0049,0.0050,0.0051,0.0208,0.0195,0.0199,0.0204,0.0208,0.0214,0.0219,0.0224,0.0229,0.0234,0.0239,0.0245,0.0249,0.0254,0.0259,0.0264,0.0269,0.0274,0.0279,0.0284,0.0289,0.0295,0.0299,0.0304,0.0309,0.0313,0.0319,0.0324,0.0328,0.0334,0.0338,0.0344,0.0348,0.0353,0.0359,0.0362,0.0368,0.0373,0.0377,0.0382,0.0388,0.0393,0.0398,0.0403,0.0409,0.0413,0.0415,0.0422,0.0430,0.0434,0.0441,0.0445,0.0451,0.0455,0.0459,0.0465,0.0470,0.0475,0.0480,0.0485,0.0491,0.0497,0.0501,0.0507,0.0512,0.0517,0.0523,0.0528,0.0533,0.0539,0.0544,0.0547,0.0554,0.0559]
fdim=[49.9863,49.8682,54.6366,58.4052,75.5866,139.7290,88.2781,119.6027,99.7552,178.4415,149.9242,99.9393,26.9032,55.4848,55.5693,50.1503,54.8894,69.5622,8.8363,46.8862,54.8345,59.7355,50.0499,3.7884,26.0891,41.7010,20.7231,25.4691,27.4376,29.2031,30.9399,32.7156,34.3386,35.9758,37.6809,39.4166,41.0883,42.6881,44.4572,46.1480,47.7651,49.4776,51.1480,52.7516,54.4220,55.9839,57.6393,59.2237,61.0079,62.4727,64.2265,65.9600,67.6207,69.1164,70.9317,72.3951,74.0686,75.6163,77.3131,78.7788,80.3439,82.2014,83.8651,85.3503,87.1065,88.7828,90.0317,91.6081,93.1425,94.8322,96.2360,98.2122,100.2633,101.0363,101.9895,103.8876,105.0949,106.7365,108.3545,110.1034,111.7555,113.0448,114.4676,116.2651,117.7987,119.0906,120.5076,121.8686,123.4738,124.9176,126.4210,127.8227,129.3451,130.9128,132.2679,133.5341,135.1002,136.9095,137.9718,139.3771]