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Detection method and detection device of compressor temperature sensor and air conditioner

A technology of temperature sensor and detection method, applied in the field of air conditioner, compressor temperature sensor detection method, and detection device, can solve the problems of blocking valve, lack of refrigerant, influence of electronic expansion valve opening and operating frequency, etc., to ensure Reliability and stability, easy protection, guaranteed accuracy

Active Publication Date: 2021-12-10
NINGBO AUX ELECTRIC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the existing air conditioners, a temperature sensor is generally installed at the discharge pipe of the inverter compressor to ensure that the temperature of the compressor body is within 115°C. Unable to accurately monitor the temperature at the exhaust pipe
In order to reflect the temperature of the compressor body more accurately, the temperature sensor is moved to the top cover of the compressor or the compressor cylinder. After actual production and long-term use, there is a certain risk of falling off due to the high-temperature radiation and vibration generated by the compressor body. The temperature sensor falls off from the original position, the system cannot monitor the temperature of the compressor body, and has a certain impact on the opening degree and operating frequency of the electronic expansion valve, resulting in the system not operating normally

Method used

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  • Detection method and detection device of compressor temperature sensor and air conditioner
  • Detection method and detection device of compressor temperature sensor and air conditioner
  • Detection method and detection device of compressor temperature sensor and air conditioner

Examples

Experimental program
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Effect test

no. 1 example

[0049] Such as figure 1 as shown, figure 1 It is a schematic flow chart of a method for detecting a compressor temperature sensor in the first embodiment; a method for detecting a compressor temperature sensor includes the following steps:

[0050] Acquisition steps: the compressor is powered on for the first scheduled time t 1 After that, get the first scheduled time t 1 The actual temperature of the compressor body T 压1 ; The compressor is powered on and runs for the second predetermined time t 2 After that, get the second predetermined time t 2 Outdoor ambient temperature T 外环 , The actual temperature of the compressor body T 压2 , Compressor operating frequency F.

[0051] The existing electronic control system can monitor the current value of the compressor in real time. The detection process is carried out every time the compressor is turned on, which is synchronized with the operation of the whole air conditioner. If it is determined that the temperature sensor ha...

no. 2 example

[0070] Such as figure 2 Shown, a kind of detection method of compressor temperature sensor comprises the following steps:

[0071] Acquisition steps: the compressor is powered on for the first scheduled time t 1 After that, get the first scheduled time t 1 The actual temperature of the compressor body T 压1 , the compressor is powered on and runs for the second predetermined time t 2 After that, get the second predetermined time t 2 Outdoor ambient temperature T 外环 , The actual temperature of the compressor body T 压2, Compressor operating frequency F, compressor voltage U and compressor current I.

[0072] Calculation steps: according to the outdoor ambient temperature T 外环 and compressor operating frequency F, determine the second predetermined time t 2 Compressor target discharge temperature T 目标排气 ;according to the first predetermined time t 1 The actual temperature of the compressor body T 压1 , compressor voltage U and compressor current I, calculate the second ...

no. 3 example

[0086] see image 3 , image 3 It is a schematic diagram of functional units of a detection device for a temperature sensor of a compressor provided in the second embodiment of the present invention.

[0087] The detection device of the compressor temperature sensor includes: an acquisition unit 100, a calculation unit 200 and a judgment unit 300;

[0088] The acquisition unit 100 is configured to acquire the first predetermined time t 1 The actual temperature of the compressor body T 压1 ; used to obtain the second predetermined time t 2 Outdoor ambient temperature T 外环 , The actual temperature of the compressor body T 压2 , Compressor operating frequency F.

[0089] The computing unit 200 is configured to use the outdoor ambient temperature T 外环 and compressor operating frequency F, determine the second predetermined time t 2 Compressor target discharge temperature T 目标排气 ;

[0090] The judging unit 300 is configured to judge the second predetermined time t 2 The ac...

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Abstract

The invention provides a detection method of a compressor temperature sensor, a detection device and an air conditioner. The detection method includes the first predetermined time t 1 After that, get the first scheduled time t 1 The actual temperature of the compressor body T 压1 ; The compressor is powered on and runs for the second predetermined time t 2 After that, get the second predetermined time t 2 Outdoor ambient temperature T 外环 , The actual temperature of the compressor body T 压2 , Compressor operating frequency F; according to T 外环 and F, determine the second predetermined time t 2 Compressor target discharge temperature T 目标排气 ;according to T 压2 with T 压1 , T 外环 , T 目标排气 Whether the comparison result of the compressor meets the preset conditions is used to determine whether the compressor temperature sensor has fallen off. The detection method ensures the accuracy of judgment on the failure of the temperature sensor of the compressor falling off, thereby facilitating timely protection of the compressor and ensuring the reliability and stability of the operation of the compressor.

Description

technical field [0001] The invention relates to the technical field of air conditioning, in particular to a detection method, a detection device and an air conditioner for a temperature sensor of a compressor. Background technique [0002] In the existing air conditioners, a temperature sensor is generally installed at the discharge pipe of the inverter compressor to ensure that the temperature of the compressor body is within 115°C. The temperature at the exhaust pipe cannot be accurately monitored. In order to reflect the temperature of the compressor body more accurately, the temperature sensor is moved to the top cover of the compressor or the compressor cylinder. After actual production and long-term use, there is a certain risk of falling off due to the high-temperature radiation and vibration generated by the compressor body. The temperature sensor fell off from the original position, and the system could not monitor the temperature of the compressor body, and had a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): F24F11/32F24F11/61F24F11/64F24F11/86F24F11/88F24F110/12F24F140/20
CPCF24F11/32F24F11/61F24F11/64F24F11/86F24F11/88F24F2110/12F24F2140/20
Inventor 孙义文胡志文韩劼成王文洁应必业原惠惠
Owner NINGBO AUX ELECTRIC