SU451922A1 - Multipoint thermometer - Google Patents

Description

one

The invention relates to the field of equipment. structure and is designed for multipoint (one temperature control).

Devices for multipoint temperature control are known that contain thermal sensors, secondary devices, a software switch consisting of a synchronous motor, a control unit with relay windings connected to the anode circuits of the thyristors, and a transformer displacement converter.

However, such thermometers have low operational characteristics, require long and careful adjustment.

In order to increase the performance characteristics of the proposed multipoint thermometer, induction coils are inserted, respectively, to the number of thermal sensors, mounted vertically on a magnetic plate used as a carrier part of the transformer transformer framework. an applicant, the control circuits of the thyristors of the control unit of the software switch are connected to the winding / induction coils, and one of the induction coils ..

The coils are equipped with a vrashayutshms core and installed axially with the shaft of a synchronous motor.

The drawing shows a schematic diagram of a thermometer. The thermometer consists of temperature sensors 1-6, connected contacts. Tami executive relays 7-12 of the software switch to the secondary device 13, the synchronous motor 14, the gearbox 15 mounted on the magnetic core 16, which is the power-generating part of the transformer converter box. An induction coil 17 is provided axially with the shaft of the synchronous motor and provided with a rotating core 18 connected to the output shaft of the synchronous motor. At an equal distance from the induction coil 17, the induction coils 19-24 are installed circumferentially on the magnetic plate, the windings of which are connected through resistors 25-ZO and rectifying diodes 31-36 to the control circuits of the thyristors 37-42 with winding I relay 7 -12 in the anode circuit.

The beeper circuit contains an electric bell connected to the output contacts of the secondary device (not shown in the drawing).

The thermometer works as follows.

The synchronous motor 14 rotates the core 18, which is sequentially for a time determined by the speed of the speed

the shape of the core, closes the magnetic circuit of the induction coil 17 with induction coils 19-24. At the moment of closing the magnetic circuit, a sharp increase in the output signal at the corresponding winding of the induction coils 19-24 occurs, which leads to the triggering of the corresponding relay 7-12. When the contacts of the relay 7-12 are closed, the thermal sensors in the specified sequence are connected to the secondary device 13, With the help of resistors 25-30 regulator; the magnitude of the signal supplied to the thyristors 37-42 is wired.

Subject invented. A multipoint thermometer containing temperature sensors, secondary devices, an audible alarm circuit, a program switch consisting of a synchronous motor, a control unit with relay windings connected to the thyristor anode circuits, and a transformer displacement transducer, a moving core

which is associated with the output shaft of a synchronous motor, characterized in that, in order to improve performance, induction coils are inserted according to the number of thermal sensors. Vertically mounted on the magnetic plate used as the carrier part of the transformer transformer frame the thyristor circuit of the control unit of the program) switches the connections HF to the windings, the induction coils, and one of the induction coils is equipped with a rotating core and installed ax on magnetic plate axially with shaft

synchronous motor.