Fire Detection Guard Rib Design for Heat Accuracy
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Existing fire detectors face challenges in maintaining accurate detection of heat due to gas flow issues, which affect the design and inflow properties, and can lead to degraded detection accuracy.
Innovation Solution
A fire detection apparatus with a housing that includes a unit for detecting fires, featuring a configuration with a guard portion that protects the heat detection unit and includes a cover unit to prevent gas from contacting the heat detection unit, thereby maintaining accurate heat detection.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the heat detection unit is exposed to the outside through an insertion hole, then heat detection capability is improved, but gas flow interference degrades detection accuracy
Solution Approach 1:
A guard portion is introduced as an intermediary component between the heat detection unit and the external environment. This guard portion allows heat to reach the detection unit while blocking harmful gas flow interference, thus mediating between the need for heat detection access and the need to protect against gas flow disturbances
2Ease of operation
If the protector and display hole are exposed on the lower surface, then visual recognition and protection functions are achieved, but design property is degraded
Solution Approach 1:
The display hole function is merged into the guard portion structure itself. The guard portion serves dual purposes: protecting the heat detection unit and providing a location for visual indication, thereby eliminating the need for separate exposed display holes that would compromise design aesthetics
3Object-affected harmful factors
If the heat detection unit is protected by a guard portion, then protection from gas flow is improved, but air flow inflow property may be affected
Solution Approach 1:
The guard portion is designed with differentiated local characteristics - certain areas are more open to allow air flow while other areas provide protection from gas flow interference. This local quality variation enables simultaneous achievement of protection and air flow maintenance
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 improves the design property and inflow property of the air flow, while maintaining accurate detection of heat by preventing gas from interfering with the heat detection unit.
Implementation Method 1
a heat detection unit accommodated in the housing to detect heat in a detection space located outside the housing
Data Source
AI summary
A fire detection apparatus 1A includes a heat detection unit 110A provided such that a part of the heat detection unit 110A is accommodated in an outer cover 20A and another part of the heat detection unit 110A is exposed to an outside of the fire detection apparatus 1A through an insertion hole 120A formed in a top surface portion 22A, and a guard portion 130A which is provided to cover a periphery of the insertion hole 120A and another part of the heat detection unit 110A in the top surface portion 22A and has a plurality of ribs, in which a material of a rib corresponding to a first guard side rib 131A among the plurality of ribs is made different from a material of some other ribs, or a shape of the first guard side rib 131A among the plurality of ribs is made different from a shape of some other ribs.