Motor Cable Sealing Structure for Leak-Safe Pool Robots
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Solution Overview
Problem
Existing swimming pool robots experience leakage due to inadequate sealing of motor leads, which compromises their waterproof performance and functionality.
Innovation Solution
A waterproof sealing mechanism featuring a housing with a sealing groove, a sealing protrusion, and a soft rubber body, where the motor leads pass through a series of holes and are secured by a rubber pressing plate and screw fixing pillars, ensuring tight contact and preventing liquid ingress.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If splicing two pieces of flexible materials with wire holes is used to seal motor leads, then the sealing structure is simple, but the sealing position is not tight enough causing leakage
Solution Approach 1:
The patent uses a flexible sealing soft body (made of rubber or silicone rubber) that can deform to fit around the motor leads and wire holes. This flexible material creates a tight seal between the rigid housing and the moving cable assembly, preventing water infiltration while maintaining structural integrity during robot operation.
Solution Approach 2:
The patent changes the physical state of the sealing material by using soft, deformable rubber or silicone rubber that can be compressed and molded around irregular shapes. This parameter change from rigid to flexible material allows the sealing soft body to conform to the cable routing and create watertight seals at dynamic interfaces.
2Reliability
If a rigid sealing structure is used for motor cable, then the sealing position is tight, but the structure cannot accommodate cable movement and deformation
Solution Approach 1:
The patent implements a dynamic sealing solution where the flexible sealing soft body can deform and move with the cable during robot operation. The rubber or silicone rubber material allows for elastic deformation as the cable moves in and out, maintaining seal integrity while accommodating the dynamic nature of cable routing in a swimming pool environment.
Solution Approach 2:
The flexible sealing soft body acts as a compliant interface between the rigid housing and the moving cable assembly. This flexible element can bend, stretch, and deform to accommodate cable movement while maintaining continuous contact and preventing water infiltration at the seal interface.
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 mechanism effectively prevents leakage by tightly wrapping the motor leads within the soft rubber, ensuring the sealing groove remains watertight and maintaining the robot's operational integrity.
Implementation Method 1
the bottom of the fixing seat main body squeezes the soft rubber, so that the soft rubber deforms to shrink the wire threading hole
Implementation Method 2
the chamfer protrusion abut against the top of the sealing soft body
Implementation Method 3
the sealing protrusion abuts against and closely contacts the bottom of the soft rubber to prevent the liquid from leaking from the gap between the sealing groove and the sealing soft body
Data Source
AI summary
The present invention provides a waterproof sealing mechanism for motor cable of swimming pool robots, which comprising a housing, wherein a sealing groove is provided on the outer side of the housing, and a sealing protrusion is integrally provided at the bottom of the sealing groove, connecting wire hole located inside the sealing protrusion is provided at the bottom of the sealing groove, and a sealing soft body is provided inside the sealing groove, the top of the sealing groove is provided with a rubber pressing plate mounted on the housing, and the middle part of the sealing soft body is provided with a threading hole running through the sealing soft body, the middle part of the rubber pressing plate is provided with a threading hole running through the rubber pressing plate, the sealing soft body is installed in the sealing groove, the soft rubber is pressed at the bottom of the fixing base main body, so that the soft rubber deforms to shrink the wire threading hole, and the leads is tightly wrapped in the soft rubber so as to prevent leakage at the penetrating position of the leads, at the same time, the sealing protrusion abuts against and closely contacts the bottom of the soft rubber to prevent the liquid from leaking from the gap between the sealing groove and the sealing soft body.