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空调感温头故障维修技巧
空调感温头故障维修技巧
Trouble shooting skills of air conditioning temperature sensor
由于温度传感器(俗称感温探头)的阻值，在不同的温度，对应不同的阻值，并且元件本身没有任何厂家的型号和参数标识，这给我们维修空调时增加了判断难度。常常在网上看到一些朋友发感温头的帖，这里有一些技巧，可帮大家解决这样的问题。
Because the resistance value of the temperature sensor (commonly known as the temperature sensing probe) corresponds to different resistance values at different temperatures, and the component itself does not have any manufacturer's model and parameter identification, this increases the difficulty of judgment when we repair the air conditioner. I often see some friends' warm posts on the Internet. Here are some tips to help you solve this problem.
一般同行在维修过程中是以实测阻值和资料对比，或者用手握感温头，用表测其阻值是否有变化来判断其好坏。这些可以大概判断出传感器的好坏。不过有些传感器，在用加温法时，阻值也是变化的，但其阻值已经严重偏离正常值.还有些机型不熟悉，无法知其确定的阻值。本人观看许多空调的电路图发现，空调的传感器电路基本相似，都是以电阻分压形式提供信号电压给CPU进行比较计算，以此判断外界温度的高低。CPU向感温头供电一般是+5V，经过感温头电阻变化分压后，输入CPU的电压一般在+2.0V~3.0V之间，这也是传感器两头的电压。如果测出的电压严重偏离，可判断传感器已经损坏。
In general, peers in the maintenance process compare the measured resistance with the data, or hold the temperature sensor in hand and use a meter to measure whether the resistance changes to judge whether it is good or bad. These can roughly judge whether the sensor is good or not. However, when using the heating method, the resistance value of some sensors also changes, but the resistance value has seriously deviated from the normal value There are also some models that are unfamiliar, and their determined resistance values cannot be known. Looking at the circuit diagrams of many air conditioners, I found that the sensor circuits of air conditioners are basically similar. They all provide signal voltage to CPU in the form of resistance voltage division for comparison and calculation, so as to judge the external temperature. The power supply from the CPU to the temperature sensor is generally+5V. After the resistance of the temperature sensor changes, the voltage input to the CPU is generally between+2.0V and 3.0V, which is also the voltage at both ends of the sensor. If the measured voltage deviates seriously, it can be judged that the sensor has been damaged.
1、不同类型感温石家庄电动伸缩门 保定桌椅 保定水处理设备 河北机械加工 北京电动门 保定养老院 保定防水头的阻值不同，但如何判别感温头的好坏呢? 很简单，就是在线测量它的电压，25度时正常的电压一般是在+2~+2.5V之间。
1. The resistance values of different types of temperature sensors are different, but how to judge the quality of temperature sensors? It is very simple to measure its voltage online. The normal voltage at 25 ℃ is generally between+2~+2.5V
Trouble shooting skills of air conditioning temperature sensor
由于温度传感器(俗称感温探头)的阻值，在不同的温度，对应不同的阻值，并且元件本身没有任何厂家的型号和参数标识，这给我们维修空调时增加了判断难度。常常在网上看到一些朋友发感温头的帖，这里有一些技巧，可帮大家解决这样的问题。
Because the resistance value of the temperature sensor (commonly known as the temperature sensing probe) corresponds to different resistance values at different temperatures, and the component itself does not have any manufacturer's model and parameter identification, this increases the difficulty of judgment when we repair the air conditioner. I often see some friends' warm posts on the Internet. Here are some tips to help you solve this problem.
一般同行在维修过程中是以实测阻值和资料对比，或者用手握感温头，用表测其阻值是否有变化来判断其好坏。这些可以大概判断出传感器的好坏。不过有些传感器，在用加温法时，阻值也是变化的，但其阻值已经严重偏离正常值.还有些机型不熟悉，无法知其确定的阻值。本人观看许多空调的电路图发现，空调的传感器电路基本相似，都是以电阻分压形式提供信号电压给CPU进行比较计算，以此判断外界温度的高低。CPU向感温头供电一般是+5V，经过感温头电阻变化分压后，输入CPU的电压一般在+2.0V~3.0V之间，这也是传感器两头的电压。如果测出的电压严重偏离，可判断传感器已经损坏。
In general, peers in the maintenance process compare the measured resistance with the data, or hold the temperature sensor in hand and use a meter to measure whether the resistance changes to judge whether it is good or bad. These can roughly judge whether the sensor is good or not. However, when using the heating method, the resistance value of some sensors also changes, but the resistance value has seriously deviated from the normal value There are also some models that are unfamiliar, and their determined resistance values cannot be known. Looking at the circuit diagrams of many air conditioners, I found that the sensor circuits of air conditioners are basically similar. They all provide signal voltage to CPU in the form of resistance voltage division for comparison and calculation, so as to judge the external temperature. The power supply from the CPU to the temperature sensor is generally+5V. After the resistance of the temperature sensor changes, the voltage input to the CPU is generally between+2.0V and 3.0V, which is also the voltage at both ends of the sensor. If the measured voltage deviates seriously, it can be judged that the sensor has been damaged.
1、不同类型感温石家庄电动伸缩门 保定桌椅 保定水处理设备 河北机械加工 北京电动门 保定养老院 保定防水头的阻值不同，但如何判别感温头的好坏呢? 很简单，就是在线测量它的电压，25度时正常的电压一般是在+2~+2.5V之间。
1. The resistance values of different types of temperature sensors are different, but how to judge the quality of temperature sensors? It is very simple to measure its voltage online. The normal voltage at 25 ℃ is generally between+2~+2.5V