Bridge type thermal rectifier

Abstract

The invention discloses a bridge type thermal rectifier, relates to the technical field of engineering thermophysics, and solves the technical problem that constant power output cannot be obtained from a heat source changing along with time. The main points of the technical scheme are that a first heat energy absorption / release plate is heated to obtain high temperature; the first heat capacity is heated by positively biasing the first heat diode directed to the first heat capacity, and the second heat capacity cannot be heated by the first heat energy absorption / release plate due to reverse biasing of the second heat diode, so the first heat capacity will be maintained at a higher temperature while the second heat capacity is maintained in a low temperature state. Along with weakening of the heat source, when the temperature of the first heat energy absorption / release plate continues to drop and drops below the second heat capacity temperature, waste heat obtained by the second heat capacity from work of the heat engine can flow through the first heat energy absorption / release plate from the second heat diode to be dissipated to the outside. After a plurality of cycles, the first heat capacity and the second heat capacity are respectively maintained at a relatively stable temperature, so that stable output is continuously carried out by virtue of the heat engine.

Description

technical field [0001] The disclosure relates to the technical field of engineering thermophysics, in particular to a bridge type thermal rectifier. Background technique [0002] The existing conversion and utilization of time-varying heat sources (hereinafter referred to as "AC" heat sources) mainly consists of the following forms: (1) Photovoltaic panel power generation technology, which converts solar energy into electrical energy during the day and stores it in the form of a battery for output (2) Solar water heaters, which absorb the heat of the sun during the day and store it as thermal energy; (3) Thermoelectric effects, including pyroelectric effects and thermoelectric effects, convert temperature differences directly into electrical energy. [0003] The shortcomings of the above three forms are that photovoltaic power generation and water heaters cannot solve the problem of periodic changes in external temperature, such as not working at night and in rainy days, and...

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Problems solved by technology

[0004] The present disclosure provides a bridge-type thermal rectifier, whose technical purpose is to solve the problem of obtaining constant power output from a heat source that changes with time, and can solve the problem of uninterrupted output of stable electric power even in nights without sun or in rainy days when utilizing solar energy , or convert the time-varying waste heat generated by the internal combustion engine, compressor, etc. into a constant electrical power output

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