Liquid storage container and manufacturing method thereof

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Solution Overview

Problem

Current liquid reservoirs in vehicle air-conditioning systems face challenges in achieving a stable filter assembly structure, which affects their filtering efficiency and the overall cleanliness of refrigerants.

Innovation Solution

A liquid reservoir design featuring a cover and housing with a flow guiding pipe, a filter assembly including position-limiting assemblies, a filter member, and a molecular sieve, where the filter member is positioned between the assemblies to prevent movement and enhance filtering, and a method for manufacturing this structure to ensure stability and improved filtering effects.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Manufacturing precision

If a filter assembly is installed in the liquid reservoir, then the filtering effect is improved, but the filter assembly structure becomes unstable and the filter member may move

Engineering Contradiction:
Improvefiltering effectVSAvoidfilter assembly structure
Core Design Contradiction:
Manufacturing precisionVSStability of the object's composition

Solution Approach 1:

The filter assembly is divided into separate components: a filter member, a first position-limiting assembly, and a second position-limiting assembly. This segmentation allows each component to be optimized independently while working together to achieve both filtering effectiveness and structural stability.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The position-limiting assemblies are pre-installed in the housing before the filter member is placed. These assemblies include positioning protrusions and positioning holes that are prepared in advance to guide and constrain the filter member, preventing movement and ensuring stable positioning from the outset.

Inventive Principle:
Principle #10Preliminary action

2Stability of the object's composition

If the filter member is secured to prevent movement, then the filter assembly structure becomes stable, but the installation process becomes more complex

Engineering Contradiction:
Improvefilter assembly structureVSAvoidinstallation process
Core Design Contradiction:
Stability of the object's compositionVSEase of manufacture

Solution Approach 1:

The position-limiting assemblies feature self-aligning positioning protrusions and positioning holes that automatically guide the filter member into the correct position during installation. This self-service mechanism eliminates the need for complex alignment procedures or additional fastening operations, simplifying the installation process while ensuring stable positioning.

Inventive Principle:
Principle #25Self-service

Solution Approach 2:

The positioning protrusions and positioning holes act as intermediary elements between the filter member and the housing. These intermediaries facilitate easy installation by providing natural alignment and positioning, while also ensuring stable long-term positioning of the filter member without requiring complex securing mechanisms.

Inventive Principle:
Principle #24Intermediary (Mediator)

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 stable filter assembly structure significantly improves the filtering effect of the liquid reservoir, ensuring better refrigerant cleanliness and system performance.

Implementation Method 1

a molecular sieve, wherein one side of the filter member abuts against the first position-limiting assembly, and another side of the filter member abuts against the second position-limiting assembly

Methodology Applied
Scientific EffectAdsorption: Adsorption

Implementation Method 2

a filter assembly, wherein the filter assembly comprises a first position-limiting assembly, a second position-limiting assembly, a filter member, and a molecular sieve

Methodology Applied
Scientific EffectFiltration: Filter (physical)

Data Source

PatentEP3734195B1Liquid storage container and manufacturing method thereof
Publication Date: 2024.10.02 ZHEJIANG SANHUA AUTOMOTIVE COMPONENTS CO LTD
  • EP3734195B1 patent drawingFigure 1
  • EP3734195B1 patent drawingFigure 2~3
  • EP3734195B1 patent drawingFigure 4

AI summary

A liquid storage container (100) comprises a cover (1), a housing (2), a filter assembly (3), and a flow guiding tube (4). The cover (1) is fixed to the housing (2) in a sealed manner. The liquid storage container (100) further comprises a flow guiding tube (4), wherein one end of the flow guiding tube (4) is connected to the cover (1). A second position-limiting assembly (31) and a first position-limiting assembly (32) are disposed opposite each other. A filter member (33) is disposed between the second position-limiting assembly (31) and the first position-limiting assembly (32). One side of the filter member (33) abuts the second position-limiting assembly (31), and another side of the filter member (33) abuts the first position-limiting assembly (32). The second position-limiting assembly (31) and the first position-limiting assembly (32) are disposed in a position-limiting manner inside the housing (2). The housing (2) comprises a liquid storage cavity (23). A molecular sieve (34) is disposed inside the liquid storage cavity (23). A mesh net (5) is fixed to the cover (1). The cover (1) is provided with a first opening (13) and a second opening (14). A through hole of the mesh net (5) communicates with the second opening (14), so as to improve the stability of an internal structure of the filter assembly (3), thereby improving the filtration precision of the liquid storage container (100).