Silicon-based thermoelectric and photoelectric sensors in self-powered RF transceiver components

A photoelectric sensor, radio frequency transceiver technology, applied in electrical components, electrical solid state devices, instruments, etc., to achieve the effect of small size, enhanced heat dissipation performance, and reduced power consumption

Inactive Publication Date: 2016-04-13
SOUTHEAST UNIV
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  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

And the biggest challenge is to figure out how to harvest / storage energy by itself for continuous use, and how to fit such an ultra-low power chip into a small IoT device

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  • Silicon-based thermoelectric and photoelectric sensors in self-powered RF transceiver components
  • Silicon-based thermoelectric and photoelectric sensors in self-powered RF transceiver components
  • Silicon-based thermoelectric and photoelectric sensors in self-powered RF transceiver components

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Embodiment Construction

[0014] The silicon-based thermoelectric and photoelectric sensor in the self-powered radio frequency transceiver assembly of the present invention is composed of a plurality of sensors 1 , and the sensor 1 is formed by connecting a plurality of thermocouples through metal wires 10 in series. While the thermocouple main part is N + The semiconductor arm 3 of polysilicon and the metal arm 2 of Al are constituted. N + The polysilicon semiconductor arm 3 makes ohmic contact with the Al metal arm 2 . The ohmic contact near the heat sink plate 8 serves as the cold end 4 of the thermocouple, and the one near the heat conducting plate 9 serves as the hot end 5 . The sensor 1 is based on a silicon substrate 6, and the middle SiO 2 Layer 7 is an insulating layer to prevent the transfer of the collected thermal energy to the substrate 6 . Below the silicon substrate 6 is a heat conduction plate 9 , and the upper layer covers a heat sink plate 8 . Si substrate 6 with SiO 2 The heat ...

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Abstract

The invention discloses a silicon thermoelectric and photoelectric sensor in a self-powered radio-frequency transceiver module which is placed at the top of a radio-frequency power amplifier and is of an array structure composed of multiple same sensor modules. The sensor modules are serially connected through multiple groups of thermocouples. The thermal side of the sensor is placed on the position (a thermal dissipating plate) where heat of the power amplifier is concentrated, and the cold side is away from the position where heat is concentrated and is tightly close to a metal shell (a thermal sink plate), so that larger temperature difference at two ends of the thermal side can be achieved. Output of direct-current voltage is generated from the array structure of the sensor on the basis of Seebeck effect, and the direct-current voltage performs charge storage upon a rechargeable battery. Energy of optical energy and thermal energy can be simultaneously collected to be self-powered, and compared with a conventional self-powered sensor capable of collecting single energy, the silicon thermoelectric and photoelectric sensor is small in size and high in power supply capacity.

Description

technical field [0001] The invention proposes a silicon-based thermoelectric and photoelectric sensor in a self-powered radio frequency transceiver assembly, which belongs to the technical field of micro-electromechanical systems. Background technique [0002] With the rapid development of the Internet of Things, the research on self-powered sensors and energy harvesting chips has received more and more attention. The biggest challenge is figuring out how to harvest / storage energy by itself for continuous use, and how to fit such an ultra-low power chip into a small IoT device. It uses various energies existing in the environment, converts them into electrical energy and stores them to provide power for electronic systems. The power supply life of this solution theoretically depends on the life of the electronic devices that make up the energy harvester. There is no additional energy consumption and no emissions. It is a typical "green" technology. There are many sources o...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): B81B7/00H02S10/30
CPCY02E10/50
Inventor 廖小平闫浩
Owner SOUTHEAST UNIV
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