Blender with temperature sensor
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Solution Overview
Problem
Blenders with integrated heating elements face challenges in accurately measuring the temperature of ingredients due to delayed and inaccurate readings, as temperature sensors cannot be directly in contact with the food, leading to issues with undercooking, overcooking, overflowing, or dry-boiling.
Innovation Solution
A blender design featuring a base part with a heating plate and a detachable container where the temperature sensor extends through the heating plate, allowing for accurate heat conduction and measurement, ensuring the sensor is not disrupted by the heating element, and is positioned to detect the temperature of the bottom part effectively.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Measurement precision
If the temperature sensor is placed inside the jar in contact with food ingredients, then the temperature measurement accuracy is improved, but the safety and hygiene requirements are violated
Solution Approach 1:
The patent uses the jar bottom as an intermediary medium to transfer temperature information from the food ingredients to the temperature sensor. The sensor measures the temperature of the jar bottom, which is in thermal contact with the ingredients, thereby indirectly obtaining the ingredient temperature without direct contact. This resolves the contradiction by maintaining measurement accuracy while eliminating contamination risk.
2Object-affected harmful factors
If the temperature sensor is placed on the jar wall or extended lip, then the contamination risk is reduced, but the temperature measurement accuracy deteriorates due to delayed readings
Solution Approach 1:
The jar bottom serves as an effective thermal intermediary that is in direct contact with the food ingredients. The temperature sensor positioned on the outer surface of the jar bottom measures the temperature through the bottom material, which quickly equilibrates with the ingredient temperature. This provides accurate, real-time temperature feedback while keeping the sensor isolated from the food, thus maintaining both measurement precision and hygiene.
3Device complexity
If the heating element and temperature sensor are positioned close together, then the device complexity is reduced, but the temperature measurement accuracy deteriorates due to heat interference
Solution Approach 1:
The patent applies local quality by creating a thermally isolated measurement zone for the temperature sensor. The sensor is positioned in a location on the jar bottom that is thermally coupled to the food ingredients but thermally isolated from the heating element. This localized thermal differentiation allows the sensor to accurately measure ingredient temperature without being influenced by the heating element's thermal field, maintaining measurement precision while keeping the overall structure simple.
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 enables precise temperature measurement and control, preventing undercooking, overcooking, overflowing, or dry-boiling by ensuring accurate temperature feedback, while maintaining a compact and safe appliance.
Implementation Method 1
The heating element heats a bottom part of the jar by heat conduction
Implementation Method 2
the base part comprising a temperature sensor for sensing the temperature of the bottom part
Data Source
AI summary
The invention relates to a blender (10) for blending ingredients. The blender (10) comprises a base part (11) comprising a heating plate (22), and a container (13) for receiving said ingredients. The container (13) is detachable from the base part (11) and comprising a bottom part for contacting the heating plate (22). The base part (11) comprises a temperature sensor (23) for sensing the temperature of the bottom part. The temperature sensor (23) extends tends through the heating plate (22).