DEVICE FOR REGULATING TEMPERATURE IN HIVE Russian patent published in 2017 - IPC A01K47/06 

FIELD: agriculture.

SUBSTANCE: device for regulating temperature in a hive comprises an external temperature sensor, a sensor of temperature inside the hive, a setter of temperature inside the hive, a power switching element, a heating element, terminals for connecting a power supply source, and a voltage regulator. A switch with changeover contacts, an operational amplifier, a relay element with controlled time delay, a precision resistor is introduced into the device. As a power switching element, a relay with changeover contacts and an electromagnetic coil is used. A two-section heating element is used as a sensor of temperature inside the hive, and a potentiometer is used as the setter for the temperature inside the hive. Wherein the voltage regulator is connected by its input to the first terminal for connection of the power supply "plus", and the output is connected to the first terminals of the precision resistor, the external temperature sensor and the electromagnetic coil, the second terminal of which is connected to the output of the relay element with controlled time delay. The other terminal to connect the "minus" power source is connected to the intermediate output of the voltage regulator and the free leads of the two-section heating element, the potentiometer and the relay element with controlled time delay. The second lead of the precision resistor is connected to the non-inversive input of the operational amplifier and in series through the normally closed relay contact and the closed switch contact with one of the two sections of the heating element, the free contact of which is connected to the other section of the two-section heating element. The sections are made in the form of a U-shaped metal spring with a variable winding pitch. The operation amplifier is also connected by its output to the input of the relay element with controlled time delay, and by its invertive input - to the input of the potentiometer, which is, in turn, connected to the second output of the external temperature sensor.

EFFECT: simplifying the design, increasing the reliability and accuracy of maintaining the temperature in different periods of year due to partitioned local heating.

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