Extractor Hood Pivotable Filter Frame for Easy Odor Filter Replacement
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Solution Overview
Problem
Existing extractor hoods with odor filters require users to manually handle and install heavy pleated filters, making it difficult to operate and maintain, especially when multiple filters are needed.
Innovation Solution
A pivotable holding frame with detachable odor filter compartments that securely hold filters in place, allowing for easy access and removal without tools, reducing the need for users to handle the weight of the filters.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If pleated odor filters are used to ensure reliable odor removal, then the filter surface area is increased, but the filter weight increases making it difficult for users to handle
Solution Approach 1:
The patent divides the filter system into two independent parts: a heavy pleated odor filter that remains fixed in the housing, and a lightweight mounting frame with guide elements that can be easily manipulated by users. This segmentation allows the functional requirement (large filter surface area) to be satisfied while eliminating the operational problem (difficulty in handling heavy filters).
Solution Approach 2:
The mounting frame acts as an intermediary between the user and the heavy odor filter. It provides guide elements that temporarily hold the filter during insertion/removal, making the heavy component easy to install and replace without requiring users to manually handle its full weight.
2Reliability
If multiple odor filters are installed to ensure reliable filtration, then the filtration capacity is increased, but the complexity of installation and maintenance increases
Solution Approach 1:
The mounting frame is divided into multiple independent receiving chambers, each capable of holding one odor filter. This modular design allows filters to be installed or removed individually without affecting other filters, simplifying maintenance while maintaining reliable filtration through multiple filters.
Solution Approach 2:
The mounting frame with its guide elements serves as an intermediary structure that simplifies the installation process for multiple filters. The guide elements in each receiving chamber provide alignment assistance, making it easy to install multiple filters simultaneously or individually without increasing operational complexity.
3Ease of repair
If users manually handle and install heavy pleated filters, then filter replacement is possible, but user effort and difficulty increase
Solution Approach 1:
The mounting frame with guide elements acts as a mechanical intermediary that reduces the effort required by users. The guide elements temporarily hold the filter during insertion, providing mechanical assistance that eliminates the need for users to manually support the full weight of heavy pleated filters during replacement.
Solution Approach 2:
The guide elements in the mounting frame provide automatic alignment and positioning assistance during filter installation. This self-guiding mechanism reduces the skill level and effort required by users, making filter replacement a simple task that does not require manual handling of heavy components.
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
Enables reliable odor filtration with reduced user effort, allowing for easy installation and replacement of filters, and accommodating various types of filters, including pleated and regenerable activated carbon filters, without the need for additional fall protection.
Implementation Method 1
Odor filters can be, for example, activated carbon filters
Data Source
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AI summary
The invention relates to a cooker hood comprising a housing (10) with a downward-facing intake opening (100), at least one fan arranged in the housing (10), and at least one odor filter (13), characterized in that the cooker hood (1) has a retaining frame (14) for the at least one odor filter (13), the retaining frame (14) is pivotably mounted on the housing (10), the retaining frame (14) is located in the intake opening (100) of the housing (10) in the operating position, the retaining frame (14) has at least one receiving space (148) in which one of the at least one odor filter (13) is detachably received, and a part of the receiving space (148) is formed by at least a part of a base surface (140) of the retaining frame (14) in which at least one frame opening (141) is formed.