Automatic Analysis Cool Box With Fanless Airflow Barrier
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Solution Overview
Problem
Existing automatic analysis devices with cool boxes face issues of temperature rise and uneven temperature distribution due to air curtain devices generating heat, and condensation from external heat and moisture ingress through the container access opening.
Innovation Solution
The device employs a cool box with a cooling device that generates cooling air, a rotatable disk for container support, and a cover with a container access opening, utilizing a flow path to create an air curtain below or above the opening without a fan, or using an external fan to suppress external heat and moisture entry.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Object-affected harmful factors
If an air curtain device is equipped in the cool box to block outside air, then external heat and moisture entry is suppressed, but the device generates heat causing temperature rise and uneven temperature distribution
Solution Approach 1:
The patent extracts the air curtain generating function from the cool box interior by using the existing cooling air flow to create the air curtain at the opening portion, rather than introducing a separate heat-generating device into the cool chamber
Solution Approach 2:
The cooling air flow itself is utilized to generate the air curtain that blocks outside air, making the system self-sufficient without requiring additional energy-consuming components inside the cool box
2Object-affected harmful factors
If a fan is used to generate air flow for blocking outside air, then air curtain effect is achieved, but the fan serves as a heat source in the cool chamber
Solution Approach 1:
The patent uses the cooling air flow as an intermediary to create the air curtain effect without requiring a fan inside the cool box, thereby avoiding the heat generation problem while maintaining the air blocking function
Solution Approach 2:
The patent replaces the mechanical fan system with a fluid dynamics-based air curtain generated by the cooling air flow itself, eliminating the need for mechanical components that generate heat
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
Prevents temperature rise and condensation in the cool chamber by blocking external heat and moisture without a fan heat source, maintaining temperature uniformity and reducing structural complexity.
Implementation Method 1
a cooling device that generates cooling air and supplies the cooling air to the cool chamber
Implementation Method 2
a flow path that generates an air flow crossing below the container access opening
Implementation Method 3
suppresses entry of external heat and moisture through a container access opening
Data Source
AI summary
An automatic analysis device includes a cool box that suppresses entry of external heat and moisture through a container access opening without being equipped with a fan that serves as a heat source in a cool chamber. The cool box includes a cool chamber that holds the liquid, and a cooling device that generates cooling air and supplies the cooling air to the cool chamber. The cool chamber includes a disk that supports a container to contain the liquid and is rotatable, a jacket that houses the disk, and a cover that covers a top of the jacket. The cover is provided with a container access opening through which the container is taken in and out, and a flow path that generates an air flow crossing below the container access opening.