Burner Nozzle and Mixing Tube Alignment in Compact Cooking Appliances
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Solution Overview
Problem
Existing heating cooking appliances face challenges in maintaining precise alignment of components within a compact design, leading to incomplete combustion and increased carbon monoxide emissions due to misalignment of the mixing tube, nozzle, and burner pot, which affects burning efficiency and air-flow resistance.
Innovation Solution
The proposed solution involves a burner system with a nozzle unit, mixing tube unit, and burner pot that utilize coupling parts and guide units to ensure precise alignment and stable fixation, allowing for easy assembly and operation, even in compact appliances, by using nozzle and mixing tube legs with modification portions to align and secure the components at preset positions.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Volume of moving object
If the heating cooking appliance is made compact to reduce size and material cost, then the appliance becomes more space-efficient and cost-effective, but it becomes difficult to maintain precise alignment and stable fixation of the nozzle and mixing tube components
Solution Approach 1:
The patent introduces coupling parts as intermediary components between the nozzle and mixing tube. These coupling parts include guide units that act as mediators to ensure precise alignment and stable fixation of the components within the compact appliance structure, resolving the conflict between compact size and alignment precision.
Solution Approach 2:
The guide units are designed to preliminarily align the nozzle and mixing tube before final assembly. This preliminary alignment action ensures that even in a compact appliance, the components are pre-positioned accurately, maintaining manufacturing precision while accommodating reduced appliance volume.
2Manufacturing precision
If the components are firmly coupled to maintain preset positions, then alignment precision is improved, but the device complexity and assembly difficulty increase
Solution Approach 1:
The coupling parts serve as intermediaries that simplify the assembly process while maintaining precise component positions. The guide units within these coupling parts provide alignment guidance, making assembly easier despite the requirement for high position precision.
Solution Approach 2:
The guide units are designed to enable self-alignment of the nozzle and mixing tube during assembly. This self-service mechanism reduces assembly complexity by allowing components to automatically position themselves correctly without requiring complex external alignment tools or procedures.
3Reliability
If the mixing tube and nozzle are precisely aligned to ensure uniform gas introduction, then combustion efficiency is improved and carbon monoxide emissions are reduced, but the assembly process becomes more difficult and time-consuming
Solution Approach 1:
The coupling parts with guide units act as intermediaries that ensure precise alignment of the mixing tube and nozzle during assembly. This intermediary mechanism maintains reliable combustion efficiency by ensuring uniform gas introduction while reducing assembly time through simplified alignment procedures.
Solution Approach 2:
The guide units perform preliminary alignment of the components before final assembly is completed. This preliminary action ensures that the mixing tube and nozzle are pre-aligned to the correct positions, reducing the time required for precise alignment during the complete assembly process while maintaining combustion efficiency.
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 configuration enables stable and efficient operation of the burner system, preventing misalignment and ensuring uniform combustion, thus improving operational reliability and user satisfaction while maintaining a compact design.
Implementation Method 1
introduces air together with the gaseous fuel into a mixing tube, using a decrease in air pressure around the sprayed gaseous fuel
Implementation Method 2
The burner system mixes a combustible gas with air to generate combustion
Implementation Method 3
Heat generated by the combustion is transferred to food by heat radiation and conduction to heat and cook the food
Implementation Method 4
Heat generated by the combustion is transferred to food by heat radiation and conduction to heat and cook the food
Data Source
AI summary
A heating cooking appliance and a burner system of the same are provided. A nozzle and a mixing tube can be stably fixed, and relative position of components can be aligned with high precision even if the heating cooking appliance has a narrow internal space. Thus, operational reliability of the heating cooking appliance is improved, and an operator can easily assemble the burner system. To this end, a nozzle coupling part is configured to fix a position of a nozzle, and a mixing tube coupling part is configured to fix a position of the mixing unit. The nozzle coupling part and the mixing tube coupling part are partially coupled to achieve a precise relative positional relation between the nozzle and the mixing tube.