Air Compressor Motor Locking Structure for Screwless Removal
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Solution Overview
Problem
Conventional air compressors face difficulties in securely fixing and easily removing the motor from the body due to the use of screws, which are challenging to handle in limited spaces, leading to inefficient assembly and disassembly.
Innovation Solution
The air compressor design incorporates multiple coupling orifices and locking extensions on the motor that engage with posts on the body, allowing secure attachment and easy removal without screws, utilizing a removal tool to press the locking extensions away from the body.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Stability of the object's composition
If screws are used to fix the motor on the body, then the motor can be securely fixed, but it becomes difficult to remove the motor in limited space
Solution Approach 1:
The locking mechanism is segmented into multiple locking extensions distributed around the motor circumference, each engaging with corresponding locking grooves on the body. This segmentation allows the removal tool to access and disengage the extensions sequentially, making motor removal feasible in limited space while maintaining secure fixation during operation
Solution Approach 2:
A removal tool is introduced as an intermediary device to interact with the locking extensions. The removal tool presses the locking extensions to disengage them from the locking grooves, enabling motor removal without requiring direct manual manipulation of the extensions themselves in the confined space
2Stability of the object's composition
If multiple threaded orifices are used on the motor casing, then the motor can be securely fixed with screws, but tools become difficult to operate in limited space
Solution Approach 1:
The screw fastening system is extracted and replaced with a direct locking extension mechanism. The locking extensions protrude from the motor and engage directly with locking grooves on the body, eliminating the need for threaded orifices and screws. This simplifies the assembly structure while maintaining secure fixation
Solution Approach 2:
Instead of using threaded orifices that require screws to be inserted through the body, the design inverts the approach by having locking extensions protrude from the motor and engage with grooves on the body. This inversion simplifies the fastening mechanism and improves accessibility for assembly and disassembly operations
3Ease of operation
If locking extensions are used to secure the motor, then the motor can be easily removed with a removal tool, but the structure becomes more complex
Solution Approach 1:
The locking extensions are merged with the motor housing structure, forming an integrated component. The extensions are directly formed on the motor casing rather than being separate parts, which reduces the overall number of components while providing both secure fixation and easy removal capabilities through the interaction with the body's locking grooves
Data Source
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AI summary
An air compressor (10) is received in an accommodation box (8) and contains a body (1), a cylinder (2), a motor (4), and a transmission mechanism (6). The body (10) includes a first positioning orifice (11) and a second positioning orifice (12). The cylinder (2) is connected on the body (1) and communicates with an air storage holder (3). The motor (4) is fixed on the body (1), a small gear (61) is received in the first positioning orifice (11), and a connection seat (41) is accommodated in the first orifice (11). The transmission mechanism (6) actuates a piston (5) to move in the cylinder (2) reciprocately so as to produce compressed airs. The motor (4) includes at least one locking extension (45) for engaging the motor (4) with the body (1), hence the motor (4) is fixed on the body (1) securely without using any screws.