compressor
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing compressor technologies face reliability issues due to delayed temperature measurement of discharged gas, leading to potential over-compression and high temperatures, which can damage the compressor.
Innovation Solution
A compressor design incorporating a first temperature sensor directly measuring refrigerant temperature within the refrigerant channel and a second temperature sensor measuring the discharge tube's surface temperature, along with a guide plate to enhance measurement accuracy and responsiveness, allowing for precise temperature estimation and improved reliability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If the temperature probe is disposed at a position downstream of the compressor body where pulsation is attenuated, then the temperature measurement stability is improved, but the response time of temperature measurement is delayed
Solution Approach 1:
The patent divides the temperature measurement function into two separate sensors: a first temperature sensor positioned downstream for stable measurement, and a second temperature sensor positioned near the discharge port for rapid response. This segmentation allows each sensor to optimize for its specific function without compromise
Solution Approach 2:
The patent uses the discharge tube as an intermediary element. The second temperature sensor measures temperature in the discharge tube near the discharge port, which serves as a intermediate location that provides both rapid response and sufficient stability, bridging the gap between the two extreme positions
2Device complexity
If the temperature sensor measures the temperature of the pipe surface or heat transmission part, then the measurement system complexity is reduced, but the measurement precision of refrigerant temperature is decreased
Solution Approach 1:
The discharge tube serves as an intermediary medium that transfers temperature information from the refrigerant to the second temperature sensor. By measuring the temperature of the discharge tube inner space or surface near the discharge port, the system obtains accurate refrigerant temperature data without requiring direct contact with the refrigerant, thus maintaining measurement precision while simplifying the measurement system
Solution Approach 2:
The discharge tube itself serves dual purposes: it guides the refrigerant flow and simultaneously acts as a temperature sensing medium. The discharge tube's thermal properties allow it to self-indicate the refrigerant temperature, eliminating the need for complex direct measurement systems
Applied Scientific Principles
This section explains which scientific principles are used to turn an abstract innovation direction into a practical engineering solution.
Function Achieved in This Case
The solution enables accurate and immediate temperature measurement of the refrigerant post-discharge, enhancing compressor reliability by preventing excessive temperatures and reducing the risk of damage, while also allowing for easier maintenance and cost-effective production.
Implementation Method 1
The temperature sensing portion directly measures the temperature of the refrigerant
Implementation Method 2
measures the temperature of one of the surface of the discharge tube, an inner space of the discharge tube, and the surface of the casing
Implementation Method 3
a temperature reflecting an influence of the heat capacity and heat dissipation of constituent members of the compressor can be measured
Implementation Method 4
a guide plate that is disposed inside the casing and reduces a channel cross-sectional area of the refrigerant channel
Implementation Method 5
the compression mechanism compresses a sucked refrigerant, and discharges the compressed refrigerant
Data Source
Figure 1
Figure 2
Figure 3~4
AI summary
A scroll compressor (10) of high reliability is disposed. The scroll compressor (10) includes a casing (20), a scroll compression mechanism (50), a discharge tube (24), a first temperature sensor (15), and a second temperature sensor (25). The scroll compression mechanism (50) is disposed inside the casing (20), compresses a sucked refrigerant, and discharges the compressed refrigerant to refrigerant channels (R1 to R3) formed in the inner space of the casing (20). In the discharge tube (24), the compressed refrigerant flows from the inner space of the casing (20) to the outside. The first temperature sensor (15) includes a temperature sensing portion (15a), and the temperature sensing portion (15a) is disposed in the refrigerant channel (R2) and directly measures the temperature of the refrigerant. The second temperature sensor (25) is disposed at a different position from the first temperature sensor (15), and measures the temperature of one of the surface of the discharge tube (24), the inner space of the discharge tube (24), and the surface of the casing (20).