Stepped Heating Pump Cover Sealing Against Aging Leaks
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
The connection between the pump cover and pump body in heating pumps ages over time, leading to potential liquid leakage, which compromises the sealing performance and reliability of household appliances.
Innovation Solution
A heating pump cover design featuring a stepped sealing piece on the flange plate, integrated with a temperature control assembly and heating body, which provides multi-level snapping and sealing, preventing liquid leakage by maintaining a secure connection even as the cover ages.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If traditional welding or snapping methods are used to connect the pump cover and pump body, then the initial sealing performance is adequate, but the connection part ages over time causing liquid leakage
Solution Approach 1:
The sealing piece is divided into multiple stepped sections with different diameters, creating multiple sealing surfaces. This segmentation allows each step to independently contribute to the sealing function, ensuring that even if one sealing surface degrades, others maintain the seal integrity over time.
Solution Approach 2:
The heating body is pre-installed within the flange plate with its heating wire extending through the sealing piece before final assembly. This preliminary positioning ensures proper alignment and integration of the heating element with the sealing structure, preventing future leakage issues related to misalignment.
2Device complexity
If a simple flange connection is used, then the device complexity is low, but the sealing reliability deteriorates due to aging
Solution Approach 1:
The sealing piece is integrally formed with the flange plate as a single unified component rather than separate parts. This merging eliminates potential leakage paths at the interface between separate components while maintaining structural simplicity and manufacturing efficiency.
Solution Approach 2:
The connection structure combines the flange plate material with the sealing piece material in an integral construction, creating a composite structure that leverages the advantageous properties of both materials to achieve both simplicity and sealing reliability.
3Ease of manufacture
If the heating body is externally mounted, then the installation is simple, but the sealing connection deteriorates due to penetration holes and aging
Solution Approach 1:
The heating body is nested within the flange plate structure, with the heating wire passing through the sealing piece in a controlled manner. This nesting arrangement protects the heating element while maintaining its functionality and ensures the sealing piece can effectively seal around the wire penetration.
Solution Approach 2:
The sealing piece has varying local properties with different stepped sections designed for specific functions: some sections provide sealing surfaces, others provide structural support, and the integrated heating wire path is sealed at critical points. This local differentiation optimizes both installation ease and sealing reliability.
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 prevents liquid leakage and enhances the sealing performance and reliability of the heating pump cover installation, ensuring continued normal operation of household appliances.
Implementation Method 1
a heating body, the heating body is arranged on one side of the first surface, and an end of the heating body penetrates the flange plate
Implementation Method 2
a sealing piece, the sealing piece is arranged outside the flange plate and integrally connected with the flange plate... achieving a multi-level snapping and sealing
Data Source
Figure 1
Figure 2
Figure 3
AI summary
Provides heating pump cover and heating pump, heating pump cover comprises: cover body, comprising flange plate and sealing piece, sealing piece is outside and integrally connected with flange plate, with cross-section stepped, flange plate comprises first surface and second surface arranged oppositely, first surface is for contacting with liquid, temperature control assembly, arranged on second surface, heating body, arranged on one side of first surface, and end of heating body penetrates flange plate, sealing and connecting flange plate, connecting to temperature control assembly by electric circuit. Arranging sealing piece on outer side of flange plate on cover body, with cross-section stepped, after being installed onto pump body, achieving multi-level snapping and sealing, effectively avoiding situation of liquid leakage happen at connecting portion between cover body and pump body due to aging or not tightly sealing, improving sealing performance and reliability of cover body installation.