Vacuum Pump Terminal Structure with Elastic Retention
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Solution Overview
Problem
The existing terminal structures in vacuum pumps are prone to damage from excessive force and lack high sealing properties, particularly when integrating the vacuum pump main body with the control device, leading to potential gas leakage and electrical issues.
Innovation Solution
A terminal structure with elastic retaining means and movement regulation to mitigate excessive force, combined with a molding member to ensure a vacuum seal without large connectors, allowing for integration of the vacuum pump main body and control device while preventing damage and leakage.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If connectors are rigidly fixed to integrate the vacuum pump main body and control device, then structural stability is improved, but the connectors are prone to damage from excessive force and misalignment
Solution Approach 1:
The patent applies flexible retaining means (elastic retention) to connect the control device with the vacuum pump main body. This allows the connection to accommodate misalignment and excessive force through elastic deformation, preventing connector damage while maintaining structural stability during normal operation.
Solution Approach 2:
The connection structure transitions from a rigid fixed state to a dynamic state where the control device can move within a predetermined range. The retaining means allows dynamic adjustment during insertion and operation, absorbing shocks and misalignments while maintaining connection integrity.
2Strength
If large connectors are used to ensure robust connection, then connection strength is improved, but the device complexity and space requirements increase
Solution Approach 1:
The patent changes the mechanical parameters of the connection system by introducing elastic retention with predetermined movement ranges. This allows small connectors to achieve robust connection through controlled flexibility and elastic deformation, eliminating the need for large rigid connectors.
Solution Approach 2:
The connection system is segmented into the control device, retaining means, and vacuum pump main body as separate but interconnected components. This modular approach allows each component to be optimized independently while maintaining overall connection strength through their coordinated interaction.
3Reliability
If rigid connection is used between vacuum pump main body and control device, then sealing is improved, but the system cannot accommodate misalignment and excessive force
Solution Approach 1:
The retaining means is designed with predetermined movement ranges and elastic properties to cushion against misalignment and excessive force before they can damage the vacuum seal or connectors. This pre-planned flexibility protects the sealing interface during assembly and operation.
Solution Approach 2:
The retaining means acts as an intermediary between the rigid vacuum pump main body and the control device. It mediates the connection by providing elastic retention and movement accommodation, allowing both components to maintain their structural integrity while achieving reliable connection and sealing.
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 solution effectively prevents connector damage and maintains a reliable vacuum seal, enhancing the pump's reliability and achieving space savings and cost reduction by allowing for oblique insertion and excessive force mitigation through elastic deformation and resin molding.
Implementation Method 1
a control device 400, which is detachably integrated with the vacuum pump main body 300 through a terminal structure having elastic retention
Implementation Method 2
with the exposed conductor portion (705) molded therein. Thus, a gap between the conductor (705) and the cable covering (702) is sealed
Data Source
AI summary
A vacuum pump casing has an opening that is covered and sealed by a cover member. The cover member is formed of molded resin with connector pins molded therein. The connector pins project outwardly from opposite sides of the cover member and are connected outside the pump casing to cables leading to a control device and connected inside the pump casing to cables leading to components within the pump casing.