Diaphragm Pump Motor Mounting via Recess Protrusion
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Solution Overview
Problem
Conventional diaphragm pumps require multiple parts and screws for motor mounting, making them difficult to automate and increasing the number of components.
Innovation Solution
A diaphragm pump design featuring a motor with a recess in its outer circumference, a crank, a driving member with a reciprocating driving element, a diaphragm forming a pump chamber, suction and discharge passages with valves, and an elastically deformable cylindrical member that holds the diaphragm and engages with the motor recess for secure mounting without screws, facilitating automated assembly.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Reliability
If screws are used to fix the motor to the mounter, then the motor mounting is reliable, but the number of parts increases and automated assembly becomes difficult
Solution Approach 1:
The motor housing integrates a recess that directly receives the mounter's protrusion, merging the motor and mounter into a unified structure. This eliminates the need for separate screws and fastening components, reducing part count while maintaining mounting reliability through the integrated recess-protrusion connection.
Solution Approach 2:
The screw fastening mechanism is extracted and removed from the motor mounting system. Instead of using external screws to secure the motor, the design employs an intrinsic recess in the motor housing that works with a protrusion on the mounter, eliminating the need for separate fastening parts.
2Reliability
If screws are used to fix the motor to the mounter, then the motor mounting is secure, but automated assembly becomes difficult
Solution Approach 1:
The motor housing integrates a recess that directly receives the mounter's protrusion, merging the motor and mounter into a unified structure. This eliminates the need for separate screws and fastening components, reducing part count while maintaining mounting reliability through the integrated recess-protrusion connection.
Solution Approach 2:
The motor mounting system is designed to be self-aligning and self-securing through the recess-protrusion interface. The motor automatically finds its correct position and secures itself to the mounter without requiring external fasteners or complex assembly procedures, enabling automated assembly operations.
3Extent of automation
If a recess is formed in the motor for engaging the mounter, then automated assembly is facilitated, but additional work is required in motor manufacturing
Solution Approach 1:
The recess in the motor housing serves dual purposes: it enables the automated assembly function by engaging with the mounter's protrusion, and it simultaneously acts as a structural feature that can be integrated into existing motor manufacturing processes. This multi-functionality reduces the need for separate assembly steps while maintaining automation capability.
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
This design reduces the number of parts needed, simplifies motor mounting, and enables reliable and easy automated assembly by eliminating the need for screws and additional work, while maintaining efficient pumping action.
Implementation Method 1
an elastically deformable cylindrical member which holds the diaphragm and includes a projection which engages with the recess of the motor
Data Source
AI summary
A diaphragm pump includes a motor having a recess in an outer circumferential portion, a crank which rotates together with a motor output shaft, a driving member including a driving element which reciprocates in accordance with the crank rotation, and a diaphragm which forms a pump chamber which expands and contracts in accordance with the reciprocating driving element. The pump also includes a suction passage which draws a fluid into the pump chamber, a discharge passage which discharges the fluid, a suction valve formed in the suction passage to regulate a reverse flow of the fluid to the suction passage, a discharge valve formed in the discharge passage to regulate a reverse flow of the fluid to the pump chamber, and an elastically deformable cylindrical member which holds the diaphragm and includes a projection which engages with the recess of the motor.