Electrostatic filter module for air cleaner, and air cleaner
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Solution Overview
Problem
Existing air cleaners with electrostatic filters require complex cabling and handling of high-voltage components, posing safety risks and increasing assembly complexity due to the need for high-voltage cables, plugs, and contact points.
Innovation Solution
An electrostatic filter module with an integrated high-voltage transformer housed within a sealed installation space, eliminating the need for external high-voltage cabling and contact points by using connections for lower voltage and potentially inductive power supply, ensuring the transformer is protected from moisture and easy to replace.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Power
If high-voltage cables and contact points are used to supply the electrostatic filter cassette, then high electrical voltage can be supplied to the ionization and separation units, but the cabling outlay increases and safety risks arise
Solution Approach 1:
The high-voltage transformer is integrated directly into the filter cassette housing, merging the power supply function with the filter unit. This eliminates the need for separate high-voltage cables and contact points, reducing cabling complexity while maintaining the ability to supply high electrical voltage to the ionization and separation units
Solution Approach 2:
A sealed installation space within the housing serves as an intermediary compartment that houses the high-voltage transformer and provides protected connection points. This intermediary structure allows voltage transformation and distribution without requiring external high-voltage cabling to penetrate the filter cassette
2Power
If high-voltage cables and plugs are used for the electrostatic filter, then high electrical voltage can be supplied, but handling becomes complex and safety risks increase
Solution Approach 1:
By combining the high-voltage transformer with the filter cassette into a single integrated unit, the system eliminates complex plug-and-cable handling. Users only need to handle the complete filter cassette as one module, significantly simplifying installation and removal operations while maintaining full high-voltage functionality
Solution Approach 2:
The integrated design makes the filter cassette a self-contained unit that requires no external high-voltage connections for operation. The transformer is pre-installed and sealed within the housing, allowing the filter to be installed and operated without any high-voltage cabling or plug connections by the user
3Reliability
If the high-voltage transformer is integrated into the filter module with a sealed installation space, then safety is improved and cabling is reduced, but the transformer requires protection from liquid ingress
Solution Approach 1:
A sealed installation space with liquid-tight barriers (sealing rings and gaskets) encloses the high-voltage transformer, creating a protective shell that prevents liquid ingress while allowing the transformer to function normally. This sealing approach protects against harmful liquid factors without compromising the integrated design
Solution Approach 2:
The sealed installation space creates a protected environment around the high-voltage transformer, isolating it from external harmful factors including liquid ingress. This inert environment approach ensures the transformer operates in a controlled, safe condition while maintaining the benefits of integration
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
Simplifies handling and operation by reducing cabling outlay, eliminating safety hazards, and lowering assembly complexity while allowing for flexible design and easy maintenance, as only the faulty filter module needs replacement rather than the entire air cleaner.
Implementation Method 1
In order to make possible an electrostatic separation of particles that are to be found in the air, said particles must first be electrostatically charged. The charging of the particles is also referred to as ionization.
Implementation Method 2
Both for the ionization of particles and also for their separation, a high electrical voltage of several thousand volts is needed.
Implementation Method 3
the installation space is at least sealed against the ingress of liquid
Data Source
AI summary
An electrostatic filter module for an air cleaner includes a housing having an installation space configured to be sealed at least against ingress of liquid. The installation space has a high-voltage connection and a connection for lower voltage. Arranged in the housing are a separation unit and an ionization unit arranged in the housing, and a high-voltage transformer is accommodated in the installation space of the housing.