K9203A 996920360 HIMA 散热风扇

产品描述：

产品描述：K9203A 996920360 HIMA 散热风扇 确认风扇轴承和IP防护等级 确定风扇工作电压

一般散热风扇电压有：12V,24V,48V ，电压确定之后就判断自己所需是AC交流风扇，DC直流风扇，或是EC风扇，各类型特点和优缺点如下：

AC风扇：特点：金属散框

优点：无需适配器，抗浪涌强，单价便宜。

缺点：风扇转度范围小，且不能调速，无RD与FG信号，有堵转保护。

DC风扇：特点：注塑塑框

优点：安全电压，安装尺寸及转速范围选择性较多，转速可调，有RD与FG信号可选，堵转等保护。

缺点：高转速噪音高

EC风扇：特点：AC/DC供电，注塑塑框

优点：可做全电电压，可做调速，可做RD/FG，转速范围宽，有堵保等保护。

缺点：抗浪涌弱，单价高

第二步：确认适合的风扇类型

可选风扇类型：横流，轴流，离心机，鼓风机

横流散热风扇特点;风量大，风压小

轴流风扇特点:进出风同一个方向

离心风扇特点：进出风成90度，风量大，风压高

鼓风机特点:进出风成90度,风量小，风压高

第三步：确认风量和风压

参考值：动作点，静态值，PQ曲线，转速，噪音，电流

第四步：确定风扇基本型号参数

基本参数;品牌，型号，尺寸，电压，电流，转速，风量，风压，噪音

第五步：确认风扇轴承和IP防护等级

轴承类型：含油轴承，液压轴承，滚珠轴承

轴承寿命：含油轴承：30000H/25度

液压轴承：30000H/40度

滚珠轴承：50000H/40度

IP防护等级:IP55:防漆可以满足，可防水溅，IP67：可防雨淋和水柱IP68：可在雨水中工作

第六步：确认功能和安装

风扇功能选择：FG测速功能，RD报警功能，PWM调速功能，自启动功能

散热风扇安装;扇框，引线，端子，线序

扇框:通孔锁螺丝一定要选，有连柱的扇框。

引线：引线有分线，并线，绞线，默认分线，线长默认框外到端子。

端子;常用端子型号：HX2.54，PH2.0,2510,飞机头等。

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Digital output module is a common electronic component, its main function is to convert digital signal to analog signal output. Digital output module is usually composed of digital signal input terminal digital signal processor, analog signal output terminal and so on. Let’s take a closer look at the working principle of the digital output module

The working principle of the digital output module can be divided into the following steps:
1. Digital signal input
The digital signal input of the digital output module usually receives digital signals from sensors, controllers and other devices. These digital signals can be switching signals, pulse signals, counting signals, etc. The digital signal input converts these signals into binary signals for processing by the digital signal processor

2. Digital signal processing
Digital signal processor is the core part of digital output module, which is responsible for converting digital signal to analog signal output. Digital signal processor usually consists of microprocessor, memory clock and other parts. When the digital signal input receives the digital signal, the digital signal processor will process it, such as filtering, amplification, calculation and other operations, and then convert the processed signal into an analog signal output.
3. Analog signal output
The analog signal output end of the digital output module is usually a voltage output end, which can output analog signals, such as voltage, current, etc. The output value of the analog signal output is usually calculated according to the result of the digital signal processor. The output value of the analog signal output can be amplified and filtered by the external circuit to meet different application requirements.
In general, the working principle of the digital output module is to convert the digital signal to the analog signal output. The digital signal input receives the digital signal from the sensor, controller and other devices, and the digital signal processor processes it, and then converts the processed signal to the analog signal output. The analog signal output terminal can output analog signals such as voltage and current to meet different application requirements. Digital output module is widely used in industrial automation, instrumentation and other fields

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