Integrated Stove Venting Structure for Downward Oil Smoke Capture
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Solution Overview
Problem
Existing integrated stoves with downward oil smoke discharge face complications in air flue arrangement, reliability, maintenance, and suction efficiency due to complex structures and potential fume leakage, particularly with multiple stove ports.
Innovation Solution
A seamless, double-layer structure with cylindrical sunken stove holes and a soleplate forming a sealed gas collecting chamber, where air suction ports are integrated near the fume source, and a blower air inlet is directly connected, eliminating the need for connecting pipelines and enhancing suction efficiency while preventing oil leakage through a pan-bottom soleplate and barrier strip design.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If communicating pipes are arranged to connect multiple gas-gathering tanks to the blower, then multiple stove ports can be served, but the air flue arrangement becomes complicated, increasing the possibility of fume leakage and blockage
Solution Approach 1:
The patent merges multiple gas-gathering tanks into a single integrated gas-gathering chamber formed by the cabinet body, panel, and soleplate. This eliminates the need for multiple separate communicating pipes while maintaining the ability to serve multiple stove ports, thereby simplifying the air flue arrangement and reducing fume leakage risks
Solution Approach 2:
The gas-gathering chamber serves as a multi-functional component that collects fume from multiple stove ports simultaneously and provides a sealed communication path to the blower. This universal structure replaces multiple specialized pipes and tanks, reducing system complexity while maintaining versatility
2Adaptability or versatility
If the blower is positioned far from the air suction ports with multiple turns in the air flue, then the system layout is flexible, but air loss increases and suction effect deteriorates
Solution Approach 1:
The patent extracts the air flue path from the complex multi-turn configuration and creates a direct, short communication channel through the gas-gathering chamber. The blower inlet is positioned to directly face the gas-gathering chamber opening, eliminating unnecessary turns and minimizing air loss while maintaining layout flexibility
3Adaptability or versatility
If complex air flue arrangement is used to serve multiple stove ports, then comprehensive fume collection is achieved, but cleaning becomes difficult and maintenance complexity increases
Solution Approach 1:
The patent segments the fume collection system into distinct functional zones: the gas-gathering chamber formed by the cabinet body, panel, and soleplate, and the blower intake area. This segmentation allows the gas-gathering chamber to be easily accessed for cleaning while maintaining comprehensive fume collection coverage through its sealed structure
Solution Approach 2:
The gas-gathering chamber design allows for easy self-cleaning through its open top structure that provides direct access to the interior surfaces where fume crud accumulates. The sealed connections at the stove ports and blower inlet prevent leakage during cleaning operations, enabling maintenance without compromising system integrity
4Volume of moving object
If upward type range hood is installed above cooking utensils with distance of 50 to 100 cm, then installation space is adequate, but fume diffusion occurs easily reducing absorption rate
Solution Approach 1:
The patent inverts the conventional upward exhaust approach by implementing downward fume discharge through the soleplate. The gas-gathering chamber collects fume at the source and directs it downward through the blower, eliminating the need for large vertical installation space while dramatically improving fume absorption rate through proximity to the cooking surface
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 simplifies the air flue structure, improves reliability and maintenance, enhances suction performance, prevents oil leakage, and facilitates easy cleaning, resulting in a compact, practical, and effective fume exhausting system with high reliability and reduced blockages.
Implementation Method 1
a huge negative pressure gas collecting chamber is formed between the panel and the soleplate
Implementation Method 2
the air inlet of the blower is directly opened on the soleplate and the distance to the air suction holes is very short, thereby facilitating to strengthen the suction of the air suction ports
Data Source
AI summary
An integrated stove in which oil smoke is discharged downward comprises a cabinet body; a plurality of cylindrical sunken stove holes are installed on the panel of the body; a cooker is installed on the soleplate of the stove holes; major arc shaped air suction ports are installed at the upper part of the wall of the stove holes; a handle hole is installed in one side of the stove holes facing person; a soleplate parallel to the panel basically is installed; the soleplate has a structure in the shape of pan bottom; and the part of the soleplate close to the side wall of the body extends to the combined part of the panel and the soleplate. The panel is mounted at the top of the side wall. The stove holes are embedded in the double-layer structure formed by the panel and the soleplate. The side wall of the stove holes is both connected with the panel and the soleplate in sealing way, the panel, the soleplate and the side wall of the stove holes are enclosed to form a communicated sealed gas collecting chamber. The air port of a blower is installed at the open hole of the soleplate, and an exhaust pipe is connected with the blower.