Pump–Valve Fluid Control Assembly with Discharge-Flow Cooling
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Solution Overview
Problem
Existing fluid control devices require a heat sink for cooling the pump housing, leading to increased size and reduced cooling efficiency.
Innovation Solution
A fluid control device design where the discharge flow from the valve directly cools the pump housing and vibrator by flowing along the outer side surface, eliminating the need for a heat sink.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Temperature
If a heat sink is used to cool the pump housing, then the pump housing can be cooled, but the device size increases
Solution Approach 1:
The invention extracts and eliminates the heat sink component from the system. Instead of using a dedicated heat dissipation device, the patent utilizes the discharge flow from the valve to directly cool the pump housing, thereby removing the unnecessary component and reducing device size while maintaining cooling functionality
Solution Approach 2:
The discharge flow from the valve serves multiple functions: it not only performs the primary function of rapid air discharge but also simultaneously serves as a cooling medium for the pump housing. This multi-functionality eliminates the need for separate cooling components, achieving compact device design
2Temperature
If a heat sink is used to cool the pump housing, then the pump housing can be cooled, but the cooling efficiency is reduced
Solution Approach 1:
The discharge flow acts as an intermediary cooling medium between the valve and the pump housing. Instead of using a heat sink that requires thermal conduction through solid contact, the moving discharge flow directly contacts and cools the pump housing surface, enabling more efficient heat transfer
Solution Approach 2:
The system uses its own operational resource (the discharged air flow) to perform the cooling function. The discharge flow, which must be expelled anyway for pump operation, is utilized to cool the pump housing, achieving self-service cooling without requiring external cooling 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
Achieves high cooling efficiency with a compact device by directly cooling the pump housing and vibrator through discharge flow, reducing size and enhancing thermal management.
Implementation Method 1
the gas discharged from the discharge passage of the valve flows along an outer side surface of the pump housing... the pump housing is directly cooled by the discharge flow
Implementation Method 2
the discharged gas flows also in the vicinity of the vibrator projection... the vibrator projection is directly cooled by the discharge flow, thus cooling the vibrator in the pump housing
Data Source
AI summary
A fluid control device includes: a pump including a pump housing; and a valve including a valve housing, the pump and the valve being disposed side by side in a first direction. The pump has a first hole formed in the pump housing, a second hole formed in the pump housing, and a vibrator disposed in the pump housing, the vibrator being configured to be able to send gas from the first hole to the second hole. The valve has the second hole formed in a first valve housing member of the valve housing, the first valve housing member being connected to the pump housing, a third hole formed in a second valve housing member of the valve housing, the second valve housing member being disposed to face the first valve housing member, and a discharge passage formed in the second valve housing member of the valve housing.