Movable Robot Heat Dissipation Using Movement-Generated Airflow

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Solution Overview

Problem

Existing heat dissipation systems for movable robots are inefficient due to the accumulation of heat within sealed inner spaces, and prior cooling techniques using metal heat conductors complicate the design and do not enhance heat dissipation without a gas source.

Innovation Solution

A heat dissipating system that utilizes air currents generated by the robot's movement by guiding them through airflow passages and wind resistance structures, enhancing airflow and heat dissipation efficiency within the robot's inner space.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Temperature

If a metal heat conductor is disposed between internal elements and the housing, then heat dissipation is enabled, but the distribution of elements inside the robot is affected and design complicacy is increased

Engineering Contradiction:
Improveheat dissipation efficiencyVSAvoiddesign complicacy
Core Design Contradiction:
TemperatureVSDevice complexity

Solution Approach 1:

The housing is designed to directly serve as the heat dissipation structure by integrating protrusions that extend from the housing surface. This merges the housing's structural function with the heat dissipation function, eliminating the need for separate metal heat conductors and reducing design complexity while maintaining effective heat transfer from internal elements to the external environment.

Inventive Principle:
Principle #5Merging (Combining)

Solution Approach 2:

The housing is given multiple functions: it provides mechanical protection, structural support, and heat dissipation. The protrusions on the housing surface serve both as structural features and as heat dissipation surfaces, allowing the housing to universally perform multiple roles without requiring additional dedicated components.

Inventive Principle:
Principle #6Universality (Multi-functionality)

2Temperature

If a heat sink is disposed on the housing for natural heat dissipation, then heat dissipation capability is provided, but without a gas source the efficiency of heat dissipation can't be enhanced obviously

Engineering Contradiction:
Improveheat dissipation capabilityVSAvoidheat dissipation efficiency
Core Design Contradiction:
TemperatureVSProductivity

Solution Approach 1:

The heat dissipation system transitions from static natural convection to dynamic forced convection by utilizing the robot's movement-generated airflow. The protrusions on the housing are positioned to effectively channel the dynamic air current generated during robot movement, enhancing heat dissipation efficiency through forced convection without requiring additional cooling components.

Inventive Principle:
Principle #15Dynamics

Solution Approach 2:

The robot's own movement generates the air current that drives the heat dissipation process. The system utilizes the robot's operational state (movement) to create the cooling airflow, eliminating the need for external gas sources or separate cooling systems. The protrusions on the housing passively capture and channel this self-generated airflow for efficient heat removal.

Inventive Principle:
Principle #25Self-service

3Reliability

If the inner space of the robot is sealed for protection, then ingress protection is maintained, but heat generated by motors and joint rotation accumulates and affects robot operation

Engineering Contradiction:
Improveingress protectionVSAvoidheat accumulation
Core Design Contradiction:
ReliabilityVSTemperature

Solution Approach 1:

The housing is segmented with multiple protrusions distributed across its surface, creating multiple localized heat dissipation zones. This segmentation allows heat to be dissipated at multiple points simultaneously while maintaining the overall sealed structure of the housing, thus protecting internal elements from external contaminants while effectively managing internal heat generation.

Inventive Principle:
Principle #1Segmentation

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 system effectively utilizes the robot's movement to enhance heat dissipation efficiency by guiding air currents through airflow passages and wind resistance structures, maintaining the robot's operational integrity by reducing heat accumulation.

Implementation Method 1

When the movable robot moves, an air current is generated accordingly. The air current partially flows into the airflow passage through the first air hole acted as an inlet, and the air current in the airflow passage is released from the first air hole acted as an outlet.

Methodology Applied
Scientific EffectAir current flow: Convection

Implementation Method 2

The wind resistance structure is configured for guiding the air current into the first air hole acted as the inlet, so as to increase the flow of the air current flowing into the airflow passage.

Methodology Applied
Scientific EffectForced convection: Forced Convection

Implementation Method 3

the air current caused by the moving of the movable robot is utilized for cooling the inner space of the movable robot, and the efficiency of heat dissipating is enhanced

Methodology Applied
Scientific EffectHeat dissipation: Convection

Data Source

PatentUS10814503B2Heat dissipating system of movable robot
Publication Date: 2020.10.27 DELTA ELECTRONICS INC(CN)
  • US10814503B2 patent drawing
  • US10814503B2 patent drawing
  • US10814503B2 patent drawing

AI summary

A heat dissipating system of movable robot is provided. The heat dissipating system includes a movable robot and at least one wind resistance structure. The movable robot includes a housing, at least one airflow passage and plural first air holes. The housing defines an inner space, the airflow passage is disposed in the inner space, and the first air holes are disposed on the housing and are in communication with the airflow passage respectively. When the movable robot moves, an air current is generated accordingly. The air current partially flows into the airflow passage through the first air hole acted as an inlet, and the air current in the airflow passage is released from the first air hole acted as an outlet. The wind resistance structure is configured for guiding the air current into the first air hole acted as the inlet.