Sensor mounting structure and cleaning device

Resolve Bottlenecks,
Find Innovative Solutions
Generate Solutions

Solution Overview

Problem

Existing cleaning devices, such as sweeping robots, have independent liquid storage tanks with high production costs, poor consistency, and a high risk of accidents due to frequent disassembly and assembly, affecting their appearance and service life.

Innovation Solution

The integration of the liquid storage tank's bottom shell and main body into a single, integral structure, facilitated by injection molding, reduces parts and assembly steps, and uses ultrasonic welding for a strong molecular bond between the bottom shell and upper cover, enhancing reliability and sealing.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Ease of operation

If the liquid storage tank is designed as an independent detachable component, then it is easy to assemble and disassemble for maintenance, but the production cost increases, appearance quality deteriorates, and the risk of accidents increases due to frequent disassembly and assembly

Engineering Contradiction:
Improveease of assembly and disassemblyVSAvoidrisk of accidents
Core Design Contradiction:
Ease of operationVSReliability

Solution Approach 1:

The patent merges the liquid storage tank with the main body into an integral structure, eliminating the need for separate assembly and disassembly of the tank. This integration removes the risk of accidents associated with frequent detachment while maintaining ease of maintenance through other means such as removable caps or access points.

Inventive Principle:
Principle #5Merging (Combining)

2Ease of operation

If the liquid storage tank is designed as an independent detachable component, then it is easy to assemble and disassemble for maintenance, but the production cost increases

Engineering Contradiction:
Improveease of assembly and disassemblyVSAvoidproduction cost
Core Design Contradiction:
Ease of operationVSEase of manufacture

Solution Approach 1:

The patent combines the liquid storage tank and main body into a single integrated structure, reducing the number of parts and assembly steps. This integration lowers production costs by eliminating separate manufacturing and assembly processes for the tank, while maintaining ease of maintenance through alternative design features.

Inventive Principle:
Principle #5Merging (Combining)

3Ease of operation

If the liquid storage tank is designed as an independent detachable component, then it is easy to assemble and disassemble for maintenance, but the appearance quality deteriorates

Engineering Contradiction:
Improveease of assembly and disassemblyVSAvoidappearance quality
Core Design Contradiction:
Ease of operationVSShape

Solution Approach 1:

The patent integrates the liquid storage tank with the main body to create a seamless, unified appearance. This integration eliminates visible seams, joints, and fasteners that would compromise aesthetic quality, while maintenance accessibility is preserved through other design mechanisms such as removable covers or access panels.

Inventive Principle:
Principle #5Merging (Combining)

4Ease of repair

If the liquid storage tank is designed as an independent detachable component, then it can be easily maintained, but the service life is reduced due to frequent disassembly and assembly

Engineering Contradiction:
Improveease of maintenanceVSAvoidservice life
Core Design Contradiction:
Ease of repairVSDuration of action of stationary object

Solution Approach 1:

The patent merges the liquid storage tank with the main body to eliminate repeated assembly and disassembly cycles, thereby extending the service life of the device. Maintenance is still facilitated through alternative approaches such as modular components, removable caps, or access points that do not compromise the integral structure.

Inventive Principle:
Principle #5Merging (Combining)

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 integration results in lower production costs, improved appearance, reduced maintenance frequency, and extended service life by minimizing disassembly and assembly risks, while ensuring effective liquid delivery to wet cleaning structures.

Implementation Method 1

uses ultrasonic welding for a strong molecular bond between the bottom shell and upper cover

Methodology Applied
Scientific EffectUltrasonic welding: Ultrasonic Vibration

Data Source

PatentEP4646990A1Sensor mounting structure and cleaning device
Publication Date: 2025.11.12 BEIJING ROCKROBO TECH CO LTD
  • EP4646990A1 patent drawingFigure 1
  • EP4646990A1 patent drawingFigure 2
  • EP4646990A1 patent drawingFigure 3~4

AI summary

A sensor mounting structure and a cleaning device. The cleaning device comprises a main body (1) and a liquid storage tank (2), the liquid storage tank (2) being used for storing a cleaning liquid, the liquid storage tank (2) comprising a bottom case (9011), and the bottom case (9011) and the main body (1) being integrally formed; and a wet cleaning structure (927), the liquid storage tank (2) being used for providing the cleaning liquid for the wet cleaning structure (927).