Refrigeration apparatus for shipping, and shipping container
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Solution Overview
Problem
Existing refrigeration apparatuses for shipping containers face challenges in efficiently detecting and maintaining the internal temperature, particularly due to heat conduction issues from the outside and poor ventilation for temperature sensors.
Innovation Solution
A refrigeration apparatus with a casing that includes a temperature sensor and a guide member to direct the sensor into the internal space, along with a holder and lock member to secure the sensor, while improving ventilation through a cover member with strategically arranged holes.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the temperature sensor is directly exposed in the internal space, then temperature detection is simple, but heat conduction from outside affects measurement accuracy
Solution Approach 1:
The guide member acts as an intermediary structure that extends from the opening into the internal space, providing a pathway for the temperature sensor while isolating it from direct external heat conduction. The sensor is positioned within the guide member's internal cavity rather than being directly exposed, allowing accurate temperature detection while blocking harmful thermal interference from the external environment.
2Object-affected harmful factors
If the temperature sensor is enclosed in a sealed housing, then protection from external factors is improved, but ventilation for accurate temperature sensing deteriorates
Solution Approach 1:
The guide member structure provides localized protection only where needed - the external portion is enclosed to block heat conduction, while the internal cavity allows the sensor to be exposed to the internal space environment for accurate sensing. This creates different quality zones: a protected external region and an exposed internal region, optimizing both protection and measurement accuracy simultaneously.
3Ease of operation
If the temperature sensor is positioned close to the opening, then installation is easier, but heat conduction from outside increases
Solution Approach 1:
The guide member serves as a mediating structure that extends from the opening inward, allowing the sensor to be installed easily through the opening while the guide member's body blocks direct heat conduction paths. The sensor is positioned at the end of the guide member within the internal space, maintaining installation simplicity while the guide member structure eliminates the harmful effect of direct external heat exposure.
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
This configuration effectively reduces heat conduction to the temperature sensor, enhances ventilation, and allows for precise temperature detection within the shipping container, thereby improving the overall refrigeration performance.
Implementation Method 1
the guide member (60) holds the detector (51) and the lead wire (52)
Implementation Method 2
a temperature sensor (50) configured to detect a temperature of the internal space (20); and the temperature sensor (50) includes a detector (51) configured to detect the temperature of the internal space (20)
Implementation Method 3
a casing (11) to be attached to an open end of a container body (2) the casing (11) having an opening that allows an internal space (20) to communicate with outside
Data Source
AI summary
A guide member extends from an opening of a casing toward an internal space. The guide member guides the temperature sensor to the internal space. The detector and the lead wire of the temperature sensor are held by the guide member.