Ceramic Oven Sensor Socket for Stable High-Temperature Contact

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Solution Overview

Problem

Current oven temperature sensor sockets have a complex structure and unstable electrical connections, leading to unreliable operation and are not suitable for temperatures above 400°C.

Innovation Solution

A connection socket design featuring a plug guide hole seat, shell, inner and outer ceramic plates, long and short leads, and elastic contact clips with lug bosses, ensuring stable electrical connectivity through the clamping action of the ceramic plates and snap rings, and a cap for moisture protection.

Engineering Contradictions & Design Principles

VSEngineering Contradiction Analysis

1Reliability

If a traditional socket structure is used to connect the temperature sensor plug, then the electrical connection can be established, but the structure becomes complicated and the electrical connection becomes unstable

Engineering Contradiction:
Improveelectrical connection stabilityVSAvoidsocket structure complexity
Core Design Contradiction:
ReliabilityVSDevice complexity

Solution Approach 1:

The socket is divided into functional modules: ceramic insulating plate, elastic contact clips, lead wires, and sealing components. Each segment performs a specific function (insulation, electrical contact, signal transmission, moisture protection), allowing the complex system to be managed through modular design while maintaining overall simplicity and reliability

Inventive Principle:
Principle #1Segmentation

Solution Approach 2:

The elastic contact clips are designed to be deformable, allowing them to automatically adjust and maintain stable electrical contact with the plug pins through elastic deformation. This dynamic property ensures reliable connection without requiring complex mechanical locking mechanisms

Inventive Principle:
Principle #15Dynamics

2Temperature

If traditional materials are used in the socket, then the structure can be manufactured, but the socket cannot withstand temperatures above 400°C

Engineering Contradiction:
Improvehigh temperature resistanceVSAvoidmanufacturing difficulty
Core Design Contradiction:
TemperatureVSEase of manufacture

Solution Approach 1:

The socket uses ceramic materials (alumina or aluminum oxide) as the main insulating structure, combining high temperature resistance, electrical insulation, and mechanical strength. This composite material approach allows the socket to withstand temperatures above 400°C while maintaining manufacturability through standard ceramic processing techniques

Inventive Principle:
Principle #40Composite materials

3Ease of manufacture

If the socket structure is simplified, then the manufacturing becomes easier, but the electrical connection stability deteriorates

Engineering Contradiction:
Improvestructural simplicityVSAvoidelectrical connection stability
Core Design Contradiction:
Ease of manufactureVSReliability

Solution Approach 1:

The elastic contact clips are designed with specific dimensional parameters (thickness, length, clip force) that are optimized to provide sufficient contact pressure for stable electrical connection. By carefully controlling these parameters, the simple clip structure achieves reliable connection performance without complex mechanisms

Inventive Principle:
Principle #35Parameter changes

4Temperature

If the socket is exposed to the oven environment, then the temperature sensor can detect high temperature, but moisture ingress affects the insulating properties

Engineering Contradiction:
Improvehigh temperature detection capabilityVSAvoidmoisture ingress
Core Design Contradiction:
TemperatureVSObject-affected harmful factors

Solution Approach 1:

The ceramic insulating plate serves as an intermediary barrier between the high-temperature oven environment and the electrical components. It provides both thermal insulation and moisture protection, allowing the temperature sensor to detect high temperatures while preventing moisture from reaching and affecting the insulating properties of internal components

Inventive Principle:
Principle #24Intermediary (Mediator)

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 design provides a simple, stable, and high-temperature-resistant electrical connection for oven temperature sensors, ensuring reliable operation and maintaining insulation properties.

Implementation Method 1

a long elastic contact clip and a short elastic contact clip... the lug bosses are clamped by the inner ceramic plate and the outer ceramic plate

Methodology Applied
Scientific EffectElasticity: Elasticity

Implementation Method 2

an inner ceramic plate and an outer ceramic plate... high-temperature insulating materials

Methodology Applied
Scientific EffectElectrical insulation: Dielectric

Implementation Method 3

high-temperature insulating materials... not applicable to normal working above a high temperature of 400° C

Methodology Applied
Scientific EffectThermal insulation: Thermal Insulation

Implementation Method 4

a conductive snap ring disposed outside the shell... connected with the conductive snap rings to ensure the electric connectivity of joints

Methodology Applied
Scientific EffectElectrical conduction: Conduction (electrical)

Data Source

PatentUS20160049748A1Connection Socket for Oven Temperature Sensor
Publication Date: 2016.02.18 LIU SHUTIE
  • US20160049748A1 patent drawing
  • US20160049748A1 patent drawing
  • US20160049748A1 patent drawing

AI summary

The present invention discloses a connection socket for oven temperature sensor, including a plug guide hole seat, a shell, an inner ceramic plate, an outer ceramic plate, a long lead, a short lead, a long elastic contact clip and a short elastic contact clip, wherein one end of the shell is sleeved and fixed on the plug guide hole seat, and the other end is internally disposed and fixedly provided with the inner ceramic plate and the outer ceramic plate; the long elastic contact clip and the short elastic contact clip respectively traverse the inner ceramic plate and the outer ceramic plate, and are respectively connected with the long lead and the short lead; since lug bosses between the long elastic contact clip and the short elastic contact clip are clamped by the inner ceramic plate and the outer ceramic plate, which ensures the firmness thereof, the stability of being electrically connected with a temperature sensor plug is thus improved. The present invention has simple structure and good insulativity, and has stable electric connection when being connected with a temperature sensor plug, so that the temperature sensor works stably.