Oven Grounding Assembly Using a Resilient Discharge Pipe Clamp
Find Innovative SolutionsGenerate Solutions
Solution Overview
Problem
Ovens with internal electric cables pose a risk of electrical leakage, potentially shocking users when they touch the oven cavity during cleaning or food placement, as existing grounding solutions like screws can be unreliable due to sliding issues.
Innovation Solution
The oven design incorporates a metal resilient element shaped like a half-moon clamp that securely connects the discharge pipe to the carrier and transmitting member, ensuring continuous grounding by preventing dislodging and using detent means for stability, with a serrated nipple for additional security, and a metal or plastic carrier for effective electrical discharge.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of manufacture
If screws are used for grounding, then the grounding structure can be simple and easy to manufacture, but the screw has the risk of sliding and may not maintain reliable electrical connection
Solution Approach 1:
The patent replaces static screw connections with a dynamic resilient element that automatically maintains contact pressure. The resilient element's elastic properties allow it to continuously press against the transmitting member, ensuring reliable electrical connection without the need for tight mechanical fastening that screws require.
Solution Approach 2:
The resilient element acts as an intermediary between the discharge pipe and the transmitting member. It provides both mechanical support and electrical connection, mediating the connection in a way that ensures both structural integrity and electrical continuity while being easier to manufacture than precision screw assemblies.
2Ease of manufacture
If the discharge pipe is loosely connected to the carrier, then the assembly is easy to manufacture, but the discharge pipe may become dislodged and break the grounding path
Solution Approach 1:
The resilient element provides dynamic securing of the discharge pipe to the carrier. Instead of requiring precise mechanical interlocking or tight fastening, the resilient element's elastic force continuously holds the discharge pipe in place, preventing dislodgment while allowing for easy assembly and manufacturing tolerances.
Solution Approach 2:
The resilient element provides beforehand cushioning by pre-loading the connection with elastic force. This pre-applied force compensates for potential dislodging forces that may occur during operation, ensuring the grounding path remains continuous without requiring overly secure mechanical attachment.
3Reliability
If metal surfaces are used for grounding, then electricity can be effectively discharged, but the metal components may corrode or degrade over time
Solution Approach 1:
The resilient element serves as an intermediary that maintains electrical connection between metal surfaces without requiring direct, permanent metal-to-metal contact. This reduces the risk of galvanic corrosion and wear while maintaining effective electrical discharge capability throughout the product lifecycle.
Solution Approach 2:
The resilient element changes the physical parameters of the connection by introducing elastic deformation and continuous contact pressure. This dynamic parameter adjustment ensures optimal electrical contact while reducing mechanical stress and corrosion risks on the metal components, extending their operational life.
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 design ensures reliable electrical grounding, preventing user shocks by maintaining continuous contact between metal surfaces and effectively discharging electricity to the ground, enhancing user safety and reducing the risk of electrical leakage.
Implementation Method 1
The resilient member produced from metal material and formed by shaping a metal wire, provides electricity to flow and to be grounded by connecting the discharge pipe and the body to each other
Implementation Method 2
The resilient element is disposed so as to contact the surface of the transmitting member located on the carrier. The resilient element prevents dislodging of the discharge pipe from the carrier by surrounding the discharge pipe from the exterior with its end contacting the discharge pipe
Data Source
Figure 1~2
Figure 3~4
Figure 5~6
AI summary
The oven (1) of the present invention comprises a body (2), at least one oven cavity (3), a casing (4) surrounding the oven cavity (3) and at least one opening (5) disposed on the casing (4) that allows delivery of hot and humid air from the oven (1 ) to the exterior environment, at least one transmitting member (9, 109) that provides the assembly of the carrier (8) on the body (2), at least one discharge pipe (6, 106), one end connected to the opening (5) and the other end to nipple (7, 107) and starting from the casing (4) maintains the successive contact of the metal surfaces to each other thus providing the flow of electricity by delivering a probable electric leak to the ground for grounding the oven (1).