Power Module Cooling Plate Stack With Recessed Dust Containment
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Solution Overview
Problem
Existing cooling devices for power modules generate dust or particles during assembly, which contaminate the environment due to the use of fixing screws.
Innovation Solution
A cooling device design that incorporates a stack of metal plates with recesses for fluid circulation and a cover with passage orifices, featuring a closing plate with a recess to contain dust and particles generated by fixing members, without adding extra parts.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If fixing screws are used to attach the cover to the circulation part, then the assembly is secure and reliable, but dust and particles are generated that contaminate the environment
Solution Approach 1:
The invention converts the harmful dust-generating screwing operation into a beneficial enclosed process. The receiving opening is designed to receive the fixing member while containing the dust generated during assembly, transforming a harmful open process into a beneficial enclosed process that maintains reliability while eliminating contamination
Solution Approach 2:
The receiving opening acts as an intermediary structure between the fixing member and the external environment. It provides a controlled interface that allows the fixing screw to secure the cover while preventing dust from escaping to contaminate the surrounding environment
2Object-generated harmful factors
If a closing plate with recess is added to contain dust, then contamination is prevented, but device complexity increases
Solution Approach 1:
The invention merges the dust containment function with the existing closing plate that is already part of the circulation part assembly. By integrating the recess into the closing plate, the design prevents contamination without adding separate dust containment components, thus avoiding increased device complexity
Solution Approach 2:
The closing plate is given multiple functions: it serves as both a structural component of the circulation part and a dust containment element through its recess. This multi-functionality allows dust containment to be achieved without adding dedicated dust collection components, maintaining device simplicity
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 design effectively contains dust and particles within the cooling device, maintaining a clean environment while being quick and economical to manufacture, with no additional components required.
Implementation Method 1
Each of the plates in the stack is made of aluminum. This metal has a high thermal conductivity, of the order of 110 W/mK to 200 W/mK.
Implementation Method 2
a circulation portion (11) in which a cooling fluid is intended to circulate
Data Source
Figure 1~2
Figure 3~4
Figure 5
AI summary
The invention relates to a cooling device (10) for a power module (20) in which: - a circulation part comprises a stack (13) of metal plates (14) comprising a first plate (141) and a plurality of intermediate plates (142) comprising recesses (15) forming channels (15A), - a fixing part comprises a cover (17) for holding the power module, adapted to press the power module against the first plate of the stack, and at least one fixing member (18), the cover being provided with a passage orifice for said fixing member, this passage orifice being adapted to be positioned opposite a receiving opening (30, 40) of the circulation part, the closing plate comprising a recess (31) arranged opposite said receiving opening, so as to create a housing (31A) into which said receiving opening opens.