CLIMATIC CHAMBER Russian patent published in 2020 - IPC F24F5/00 

FIELD: control and regulation of non-electrical values.

SUBSTANCE: invention relates to control and regulation of non-electrical values, namely to control and regulation of temperature and humidity of air and can be used in volumes intended for storage of food products, electronic equipment and articles from materials susceptible to corrosion. Climatic chamber comprises heat-insulated tight working volume, to which the first air duct is supplied outside through inlet and outlet pipes. In the first air pipeline near the inlet branch pipe there is a hole the cross-section area of which is less than the cross-section area of the inlet connection pipe. First temperature sensor and the humidity sensor are located inside the working volume. Fan is fixed inside the working volume and before the inlet branch pipe. Two opposite parts of the first air duct are interconnected by a second air duct. First air duct on the side of the inlet branch pipe is connected through the electromagnetic three-way valve to one end of the second air duct. In the second air duct there is a heating radiator in the form of a plate, perpendicular to one side of which there are ribs parallel to each other, directed inside the air duct, forming channels for passage of air flow. Part of the other side of the heating radiator plate through the hole in the second air duct adjoins the surface of the Peltier element fixed outside the second air duct. Opposite surface of Peltier element through hole in first air duct adjoins plate of cooling radiator built into first air duct so that parallel to each other ribs, made perpendicular to the other side of the plate, are directed inside the first air duct, forming channels for air passage. Surface area of heating radiator plate adjacent to surface of Peltier element and to second air duct from inside is at least twice larger than surface area of cooling radiator plate adjacent to other surface of Peltier element. In the first air duct under the cooling radiator ribs there is a hole, under which the funnel is fixed outside. Between the ribs of the heating radiator there is a second temperature sensor. Fan, a Peltier element, first and second temperature sensors, a moisture sensor and an electromagnetic three-way valve are connected to the control device.

EFFECT: simplified design.

1 cl, 2 dwg