Pump Assembly Damper Mounting Without Bracket Vibration Damage
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Solution Overview
Problem
Existing pump assemblies face issues with damper damage or deformation due to hardening screws and increased manufacturing costs from additional brackets, which are prone to vibration and require complex assembly processes.
Innovation Solution
A pump assembly design that includes a housing with a through hole and a damper supported by a boss and coupling region, allowing for stable fixation without a separate bracket, reducing the risk of damper damage and simplifying the manufacturing process.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If a damper is directly fixed to a housing using a screw, then the damper can be securely mounted, but the damper is damaged or deformed due to its low hardness material
Solution Approach 1:
The patent introduces a boss as an intermediary component between the screw and the damper. The screw is fastened to the boss formed in the housing, and the damper is supported by the boss, preventing direct contact between the screw and the soft damper material. This mediator protects the damper from damage while maintaining secure mounting.
2Reliability
If a separate bracket is added to support the damper, then the damper can be protected from screw damage, but the manufacturing cost increases and the bracket is damaged due to vibration
Solution Approach 1:
The patent merges the support function into the housing structure itself by forming a boss directly in the housing. This eliminates the need for a separate bracket while providing the same protective and supportive function. The boss is integrated into the housing, reducing component count and manufacturing cost while maintaining damper protection against vibration and screw damage.
3Reliability
If a bracket is used to support the damper, then the damper can be protected, but the manufacturing process becomes more complex and costly
Solution Approach 1:
The support structure is merged with the housing by forming the boss as an integral part of the housing. This eliminates the need for separate bracket manufacturing and assembly processes, simplifying the manufacturing process while maintaining stable damper support. The boss provides the necessary structural support without requiring additional manufacturing steps.
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 stabilizes the damper, reduces manufacturing costs, and enhances efficiency by eliminating the need for additional components and assembly steps, effectively managing vibration and noise.
Implementation Method 1
a damper is installed to reduce this vibration and noise
Implementation Method 2
the damper is formed of a material with low hardness such as rubber and silicon
Data Source
Figure 1
Figure 2A
Figure 2B
AI summary
A pump assembly according to one embodiment comprises: a pump unit; a housing including a bottom surface facing the pump unit and a first opening provided on the bottom surface; a seating surface on which the pump unit is seated; a damper including a coupling region extending in the direction facing the bottom surface from the seating surface and in contact with the bottom surface, and a second opening provided in the coupling region and having a larger diameter than that of the first opening; and a fixing member including a pillar passing through the first opening and the second opening at the same time, and a head for fixing the damper to the bottom surface. Various other embodiments may be possible.