Temperature homogenization, protection, and grease guide structure of barbecue grill

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Solution Overview

Problem

Conventional barbecue grills suffer from non-uniform temperature distribution, inefficient thermal energy use, and ineffective grease management, leading to suboptimal cooking results and smoke generation due to direct liquid fallout onto the burner, which can cause fires and corrosion.

Innovation Solution

An inclined, upward-facing burner arrangement combined with an M-shaped grease guide and temperature barrier board, which homogenizes temperature, protects the burner, and directs grease efficiently to a grease tray, reducing the risk of fire and smoke.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a conventional protection hood is provided above the burner to prevent liquids from dropping onto the burner, then the burner is protected from direct liquid contact, but the protection hood itself gets heated by radiation energy causing dropped liquids to catch fire and generate smoke

Engineering Contradiction:
Improveburner protectionVSAvoidsmoke generation
Core Design Contradiction:
ReliabilityVSObject-generated harmful factors

Solution Approach 1:

The patent introduces a grease guide structure as an intermediary component between the protection hood and the burner. This grease guide directs liquids that fall on the protection hood away from the burner area, preventing them from catching fire on the hot hood surface and generating smoke, while still maintaining the protective function.

Inventive Principle:
Principle #24Intermediary (Mediator)

Solution Approach 2:

The protection system is segmented into multiple functional components: the protection hood for shielding, the grease guide for liquid redirection, and the baffle structure for additional liquid management. This segmentation allows each component to perform its specific function without the harmful side effects of the integrated conventional design.

Inventive Principle:
Principle #1Segmentation

2Reliability

If a V-shaped protection hood is arranged above the burner to prevent liquid fallout, then burner protection is improved, but the hood is positioned at a relatively high location making it difficult for liquids to reach the grease tray

Engineering Contradiction:
Improveburner protectionVSAvoidgrease drainage efficiency
Core Design Contradiction:
ReliabilityVSEase of operation

Solution Approach 1:

The grease guide structure extends liquids from the horizontal plane of the protection hood down to the lower grease tray position, effectively adding a vertical dimension to the liquid flow path. This allows liquids to be guided from the high-positioned hood to the lower grease tray efficiently.

Inventive Principle:
Principle #17Another dimension (Dimensionality change)

Solution Approach 2:

The grease guide acts as an intermediary channel that bridges the height difference between the protection hood and the grease tray, enabling efficient grease drainage while maintaining the protective hood's elevated position for optimal burner protection.

Inventive Principle:
Principle #24Intermediary (Mediator)

3Reliability

If a protection hood is provided above the burner to prevent direct liquid contact, then burner protection is improved, but thermal energy radiation from the upper side of the burner cannot be directly applied to the barbecue grate resulting in thermal energy waste

Engineering Contradiction:
Improveburner protectionVSAvoidthermal energy waste
Core Design Contradiction:
ReliabilityVSLoss of energy

Solution Approach 1:

The protection system is designed with segmented structures including side openings and strategic gaps that allow thermal radiation to pass through while maintaining protective coverage. This segmentation enables both burner protection and efficient heat transfer to the grate.

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The protection hood has varying properties in different locations: solid coverage areas for liquid protection, and open areas with strategic openings for thermal radiation passage. This local quality differentiation allows simultaneous achievement of burner protection and thermal efficiency.

Inventive Principle:
Principle #3Local quality

4Ease of operation

If slots or openings are formed between ribs of the barbecue grate for food placement, then food grilling is enabled, but temperature distribution becomes non-uniform and heating is not homogenized

Engineering Contradiction:
Improvefood placement flexibilityVSAvoidtemperature uniformity
Core Design Contradiction:
Ease of operationVSTemperature

Solution Approach 1:

The grate structure incorporates temperature homogenization bars with specific thermal properties positioned strategically to create local heat redistribution zones. These bars have different thermal characteristics than the surrounding grate ribs, creating localized areas that promote uniform heat distribution while maintaining the necessary openings for food placement.

Inventive Principle:
Principle #3Local quality

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 solution ensures uniform heat distribution, prevents liquids from reaching the burner, reduces smoke, and effectively guides grease to a tray, enhancing cooking performance and safety.

Implementation Method 1

radiation heat that emits and irradiates from the upper side of the burner

Methodology Applied
Scientific EffectThermal radiation: Thermal Radiation

Implementation Method 2

helps homogenize a grilling temperature

Methodology Applied
Scientific EffectConvection: Convection

Implementation Method 3

conducts, in a more effective manner, grease to a grease tray

Methodology Applied
Scientific EffectGravity: Gravitation

Data Source

PatentUS10512360B2Temperature homogenization, protection, and grease guide structure of barbecue grill
Publication Date: 2019.12.24 GRAND HALL ENTERPRISE CO LTD
  • US10512360B2 patent drawing
  • US10512360B2 patent drawing

AI summary

Disclosed is a temperature homogenization, protection, and grease guide structure of a barbecue grill, including at least one burner, a grate, and a grease guide and temperature barrier board. The burner includes a heat generation section and is arranged in an inclined, upward-facing manner in a barbecue grill. The grate is arranged in a top opening of the barbecue grill. The grate includes ribs that are provided with at least one temperature homogenization protection section, which is located above and corresponds to the heat generation section. The grease guide and temperature barrier board is configured in an M-shape and is arranged below the burner.