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Next-generation power semiconductors (SiC and GaN) have high energy density, and to address the following challenges, a breakthrough in thermal design thinking is essential! 1. Occurrence of localized thermal concentration 2. Black box nature of thermal design 3. Impact of time-dependent thermal resistance By utilizing thermal flow sensors, the perspective on design changes, leading to a reduction in development lead time and an improvement in product competitiveness.
The thermal flow sensor "Energyflow" is an in-house sensor that Toyota needs in the car development field. From the perspective of both engineers and users, we will carefully explain the handling of thermal flow and the features of Energyflow. [What you can learn from the explanatory materials] - What is thermal flow? - What can you understand by knowing about thermal flow? - What is the difference between a thermocouple and a thermal flow sensor? - Unique features of Toyota's Energyflow - Frequently asked questions from customers - Examples of utilization in various industries, etc.
Everyone has experienced knowing the temperature using a thermocouple, right? But is temperature really all we want to know when designing for heat? Temperature is just a result, and often, I feel that lacking information can lead to detours in development when trying to implement effective measures. Have you ever felt that way? By understanding heat flow, we can connect it to effective thermal countermeasures. By the way, what is heat flow? How is it different from temperature? I've organized this information in an easy-to-understand way, so you can ask without hesitation. You can download it for free. Review it quietly and gain an edge!
The importance of thermal management is increasing due to the rising risks of high temperatures from the miniaturization and high performance of electronic devices and systems, the impact on the human body from the generalization and common use of electronic devices, and the growing demand for heat stress countermeasures (heatstroke prevention) due to rising average temperatures. This document allows you to diagnose the "level of heat management" at your site using a flowchart, and based on the diagnosis results, it provides hints for efficient countermeasures that address the causes of heat. Additionally, we have included examples of the use of thermal flow sensors, so please make use of them for your heat management efforts. [Contents (excerpt)] ■ Increasing importance of thermal management ■ Diagnosis chart flow ■ For those with a diagnosis result of "Basic Level" ■ For those with a diagnosis result of "Practical Level" ■ For those with a diagnosis result of "Advanced Level" *For more details, please download the PDF or feel free to contact us.
Are you having trouble grasping the reality of heat generation and dissipation in thermal design of circuit boards? Since the unit of heat flow is [W/m^2], you can calculate the heat generation [W] by multiplying it by the measurement area. Toyota's heat flow sensor "Energy flow" is highly sensitive and can quickly detect even slight thermal behaviors without missing them, making it useful in the following scenarios. ▼ Overview: By attaching a heat flow sensor and thermocouple to the regulator IC chip mounted on the power supply board, we can compare the thermal environmental behavior due to heat generation associated with the operating voltage of the IC chip. ▼ Evaluation Results: In response to the voltage behavior of the IC chip, heat flow shows better responsiveness than temperature.
The "Energy flow" thermal flow sensor provided by Toyota Motor Corporation can measure the amount and direction of thermal energy, which is essential for elucidating the mechanisms of temperature change, with high sensitivity and simplicity. <Usage Examples> Quantitative understanding of thermal resistance, which is essential for power IC heat dissipation design. Contributing to the design of electronic circuits, heat sinks, and heat exchangers! *For more details, please download the PDF document or contact us.
The heat flow sensor provided by Toyota Motor Corporation cannot solely convey the thermal insulation performance of buildings and energy-saving items through temperature alone. The heat flow sensor enables the measurement of slight heat flows that are difficult to measure with conventional methods, contributing to more efficient thermal design. It is an ideal product for solving challenges in architecture, construction, and building materials that require data-driven improvements, such as evaluating the performance of insulation and heat shielding materials and identifying thermal losses in buildings. 【Usage Scenarios】 - Performance evaluation of insulation materials: Accurately assess the performance of existing insulation materials and newly developed insulation materials. - Investigation of building heat loss: Identify areas of heat loss in buildings and assist in renovation plans for energy conservation. - Design of new buildings: Conduct heat flow simulations during the design phase to achieve optimal insulation design. - Renovation of existing buildings: Evaluate the insulation performance after renovation and verify its effectiveness. 【Benefits of Implementation】 - Quantitative evaluation of insulation performance: Enables data-driven assessments, resulting in highly reliable outcomes. - Contribution to energy conservation: Identifying and reducing heat loss leads to a decrease in energy costs. - Efficiency in design and construction: Allows for design and construction based on accurate data.
Heat flow (process) is a leading indicator of temperature (result). By measuring the flow of frictional heat energy generated at the machining point during machining, it is possible to monitor the condition of equipment and cutting tools and to expedite abnormal detection (predictive maintenance). <Examples of Utilizing the Heat Flow Sensor "Energy Flow"> ▼Overview: Measuring the heat flow and temperature caused by frictional heat when machining a torque converter. ▼Background: Until now, monitoring the machining state has relied on temperature sensors and vibration sensors. However, there are limitations in accurately detecting the timing of machining completion and the occurrence of abnormalities in real-time. To prevent unexpected equipment downtime due to cutting tool breakage, it is common to perform maintenance early based on past performance, experience, and the number of processes. ▼Evaluation Results: By installing the heat flow sensor and thermocouple close to the cutting tool, we measured the waveform of the heat flow transmitted to the arm from the frictional heat during machining. It was confirmed that the heat flow sensor could detect "machining completion" faster than the thermocouple. As a means of real-time monitoring of the machining state, the use of a highly sensitive heat flow sensor has been fundamentally validated as effective. *For more details, please download the PDF document or contact us.
The heat flow sensor is a device that can easily measure heat flux, which is essential for elucidating the mechanisms of temperature change. By converting the electromotive force generated according to the temperature difference between the front and back of the sensor into heat flow, this sensor can measure the "amount" and "direction" of thermal energy passing through its surface with high precision and rapid response. You can download documents summarizing each lineup and detailed specifications from the link below. For product specifications, pricing, and delivery times, please feel free to contact us through our official website. 【Features of Toyota Motor's heat flow sensor "Energy flow"】 ▼ Highly sensitive and responsive, capturing even slight heat flows (±10W/m2 and above) ▼ Thin at 0.25mm with low thermal resistance, flexible, and excellent in compressive load resistance ▼ No power supply or amplifier is needed; just measuring voltage is sufficient.
"Energy flow" refers to a sensor that can only detect convective heat dissipation. While a heat flow sensor measures the combined heat flux of radiation and convection, the convective heat dissipation sensor outputs only the heat flux from convection! Due to differences in the emissivity of the sensor surface, it becomes possible to separate the heat dissipation into convective and radiative components. You can download a document summarizing each lineup and detailed specifications from the link below. Please feel free to read it or contact us. 【What is convection?】 The transfer of heat by fluids such as gases or liquids. Example 1: The phenomenon of hot coffee cooling down. Example 2: The phenomenon of a hot plate cooling down after the power is turned off.
Are you aware that the temperature measured can deviate from reality depending on how the thermocouple is installed? This is a challenge that troubles many engineers dealing with heat. In thermal design of circuits, accurately understanding heat generation and dissipation is a technical trend. A heat flow sensor that can measure thermal energy with high precision can solve this issue. This technical document explains the challenges of thermocouple measurement and the advantages of heat flow sensors. [Examples of recommended fields] - Heat dissipation from engine surfaces - Thermal balance, heat loss, and thermal efficiency of heat exchangers and heat pumps - Evaluation of cooling capacity - Understanding the heat generation of each component in circuit thermal design
Do you know the uses of "heat flux"? There are various opportunities to measure temperature for different purposes, but if you understand "why the temperature is what it is," you can utilize that knowledge for appropriate thermal countermeasures. Toyota Motor Corporation's heat flow sensor, 'Energy flow,' can conveniently and responsively measure the pathways of heat intrusion, allowing you to identify the "heat flux" that causes the heat. We also provide solutions for measurement methods, instrumentation for products, and data analysis issues, all handled by Toyota's active engineers. Please read the materials first or feel free to contact us. ■Examples of utilization (excerpt) - Measurement of thermal insulation or thermal conductivity - How to dissipate heat from a circuit board without a cooling fan - Methods for dissipating heat, directing airflow, and controlling air conditioning in thermal damage design - Quantification of cost-effectiveness for heat countermeasure items
This document introduces the highly sensitive heat flow sensor "Energy flow," which is an essential item for the development of new thermal energy management systems. We will explain what heat flux is, the measurement principles and manufacturing technologies of Energy flow, and the strengths characterized by the product specifications. Measurement examples are also included, making it a recommended read for those facing challenges in areas such as wall penetration thermal evaluation in low-temperature environmental testing rooms and thermal performance evaluation of power ICs. [Contents] ■ What is heat flux? ■ Structure, measurement principles, and manufacturing methods of Toyota's heat flow sensor "Energy flow" ■ Product specifications and performance ■ Measurement application examples *For more details, please download the PDF or feel free to contact us.
This is a heat flux sensor used by Toyota Motor Corporation in the field of car development. It can easily measure the "heat flux" necessary to elucidate the mechanisms of temperature change.
In this seminar, we will hear from a current designer at a parts manufacturer about "Key Points for Actual Measurements Using Thermocouples and Heat Flow Sensors," and we will introduce Toyota's high-sensitivity heat flow sensor "Energy Flow." Additionally, as a case study for verifying the discrepancies between actual measurements and analysis, we will present the thermal analysis of the heat flow sensor demonstration kit and its considerations. If you are working on verifying discrepancies between actual measurements and analysis, or if you are engaged in building technologies for thermal design, thermal analysis, and thermal measurements, we encourage you to take this opportunity to watch!
