Blower Bearing System for Radial Load Distribution
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Solution Overview
Problem
Existing blower designs face challenges in supporting increased loads due to combined air blowing and filtering performance, leading to reduced durability and inefficient space usage, with existing bearing structures failing to evenly distribute radial loads and causing friction issues.
Innovation Solution
The blower design incorporates a unique structure with a rotating plate and bearing system that distributes the load evenly, using a conical shape to lower the center of gravity and reduce the risk of tipping, and a dual-tower blowing module with adjustable airflow direction, enhancing airflow distribution and stability.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Productivity
If additional structures for improving air blowing performance and filtering performance are provided in the main body, then air blowing performance and filtering performance are improved, but the bearing structure cannot support the increased load durably
Solution Approach 1:
The bearing structure is divided into multiple bearings arranged at different positions around the rotating plate. Instead of using a single bearing to support the entire load, the load is segmented and distributed to multiple bearings, allowing each bearing to handle a portion of the increased load from additional air blowing and filtering structures.
Solution Approach 2:
Multiple bearings are combined to work together as a unified support system. The bearings are arranged in a configuration where they collectively support the rotating plate, combining their load-bearing capacities to handle the increased loads from enhanced air blowing and filtering performance structures.
2Device complexity
If the bearing is provided in the center of the main body, then the bearing structure is simplified, but the load of the body distributed outward cannot be evenly supported in a radial direction
Solution Approach 1:
The bearing arrangement transitions from a centralized symmetric configuration to an asymmetric distributed configuration. Multiple bearings are positioned at different radial locations around the rotating plate, creating an asymmetric layout that enables even radial load distribution while maintaining structural effectiveness.
Solution Approach 2:
The bearing support system moves from a one-dimensional centralized arrangement to a two-dimensional distributed arrangement around the rotating plate. This dimensional change allows bearings to be positioned at multiple angular locations, enabling uniform radial load support across the entire rotating assembly.
3Ease of operation
If the motor is installed on the base to avoid interference with the bearing and rotating plate, then interference is avoided, but the inner space of the annular bearing is wasted and space efficiency is reduced
Solution Approach 1:
The motor is nested within the annular bearing structure, utilizing the inner space of the bearing that would otherwise be wasted. This nested arrangement allows the motor to be housed inside the bearing assembly, avoiding interference with the rotating plate while maximizing space efficiency by using previously unused internal volume.
Solution Approach 2:
The motor positioning moves from a two-dimensional base surface arrangement to a three-dimensional nested arrangement within the bearing structure. This spatial reconfiguration allows the motor to occupy vertical and radial space within the bearing assembly rather than requiring additional horizontal space on the base.
4Device complexity
If the spacing between the non-rotating structure and the rotating structure is not sufficient, then the structure is more compact, but friction between structures during rotation increases and use life is reduced
Solution Approach 1:
A lubricant is introduced as an intermediary substance between the non-rotating bearing structure and the rotating plate. This lubricant film reduces direct contact and friction between the structures, allowing them to be positioned closer together while maintaining low friction and extended use life during rotation.
Data Source
AI summary
A blower may include a base, a case provided above the base and having an air inlet and an air outlet, a fan provided inside the case, a rotating plate connected to the case and provided to be rotatable above the base, a motor to rotate the rotating plate, and a bearing provided between the rotating plate and the base, fixed to the rotating plate, and supported movably on the base.