Integrated Vacuum Pump Heat Transfer Sealing
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Solution Overview
Problem
Existing turbo-molecular pumps face challenges in preventing external moisture air from entering the control device due to multiple cables connecting the pump main body and control device, which can lead to damage.
Innovation Solution
A power source-integrated vacuum pump design where the pump main body and power source are integrated, using a heat transfer member with high thermal conductivity that also serves as a sealing member to prevent moisture entry, while ensuring effective cooling and radiation performance.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If multiple cables are used to connect the pump main body and control device, then electrical connections are established, but external moisture air can enter the housing of the control device
Solution Approach 1:
The pump main body and power source are merged into a single integrated unit, eliminating the need for separate control device housing and cable connections. This integration removes the vulnerability points where moisture could enter through cable openings, while maintaining all necessary electrical and functional connections internally.
Solution Approach 2:
The housing structure serves multiple functions simultaneously: it provides mechanical support, thermal management through integrated heat dissipation, and environmental sealing. The single integrated housing eliminates the need for separate control device housing with cable penetration seals.
2Temperature
If a heat transfer member is provided at the fixing portion, then radiation performance of the power source is ensured, but the structure becomes more complex
Solution Approach 1:
The fixing portion structure performs dual functions: mechanically securing the power source to the pump main body while simultaneously serving as a heat transfer member for thermal management. This integration eliminates the need for separate thermal interface components, reducing structural complexity while maintaining effective heat dissipation.
Solution Approach 2:
The mounting/fixing function and thermal conduction function are merged into a single integrated component. The fixing portion is designed with high thermal conductivity material and direct contact surfaces that enable efficient heat transfer from the power source to the pump main body housing, which acts as a heat sink.
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 integration of the power source and pump with a high thermal conductivity sealing member effectively prevents moisture ingress and enhances cooling efficiency, protecting the power source from external air and improving radiation performance.
Implementation Method 1
a heat transfer member provided at a fixing portion between the pump housing and the power source housing in contact with the pump housing and the power source housing
Implementation Method 2
a cooling fan configured to send cooling air to the pump housing
Implementation Method 3
The housing wall portion includes a refrigerant path for circulating liquid refrigerant
Data Source
AI summary
A power source-integrated vacuum pump in which a pump main body including a pump rotor and a pump power source configured to supply power to the pump main body are integrated together, comprises: a pump housing configured to house the pump rotor; a power source housing of the pump power source, the power source housing being fixed to the pump housing; a heat transfer member provided at a fixing portion between the pump housing and the power source housing in contact with the pump housing and the power source housing; and a sealing member provided at the fixing portion between the pump housing and the power source housing to seal between the pump housing and the power source housing.