SU1379773A1 - Electromechanic inductive transducer for time devices - Google Patents

Description

(21) 2862748 / 24-10

(22) 04.01.80

(46) 03/07/88. Bul Number 9

(71) Hour Research Institute

(72) A.I. Krasnopevtsev

(53) 681.011.034 (088.8)

(56) USSR Author's Certificate, No. 686008, cl. G 04 C 13/10, 1975.

USSR author's certificate number 544063, cl. H 02 K 37/00. 1975.

(54) ELECTROMECHANICAL INDUCTIVE CONVERTER FOR TIME INSTRUMENTS

(57) The invention allows to increase the speed of the converter and its reliability by compensating the inertial forces arising from the movement of the clock hands. The converter contains a stator with two coil Nni 7 windings on a magnetic core in the form of a rod, made along an arc of a p - «arc, concentric to the rotor. In the place of thickening and at the ends of the rod, pole tips 2 are placed, magnets 5 with an axial orientation of the poles are placed around the circumference of KOTOpbiMVi. The ring plain tip of 1PG 6 of magnet 5 forms a radial gap with a cylindrical protrusion 11 mounted from the end of the toothed part of the rotor 10 mounted on the shaft 8 of the drive of the clock mechanism. The direction of rotation of the output shaft of the converter is determined by the order of alternation of the phases of the network, in which the coils section 7 is turned on. The rotor 10 is installed with axial displacement relative to the tip 6. 7 Il.

1C

77

/

with

 CO vj H

WITH

qjuz.l

This invention relates to time devices, in particular to electromechanical inductor converters used in electric clocks.

{Spruce of the invention - increase in speed and reliability due to compensation of inertial forces.

Figure 1 presents the Converter, a General view; figure 2 - section aa in figure 1; figure 3 - section bb in Fig., 1; Fig. 4 shows a transducer with a magnetic fixation of the rotor position, a general view; Figure 5 - a converter with a reduced height dimension; Figure 6 is the same, the design of the reversed design; figure 7 is a view In figure 5.

The transducer case 1 has a magnetic core in the form of a rod 3 with a thickening in the middle. The magnetic circuit is made in an arc of a circle in the form of an open toroid and is provided with pole pieces 2 and 4, between which a permanent magnet 5 with tip 6 is mounted around the circle. On the core 3 there are two coils 7 windings containing two sections each.

In the center of the pole tip 6 there is a hole through which the shaft 8 passes, mounted in bearings q, one of which is placed in the hole of the POLK1SNOGO tip 6 of the magnet 5, and the other in the housing 1.

On the shaft 8 of the drive clock mechanism is fixed to the rotor 10, provided with a cylindrical protrusion I1 installed at the end of the toothed part of the rotor 10 and forming a radial clearance with the pole piece 6 of the magnet 5.

To ensure that the rotor 10 is locked in the magnetic circuit of the transducer, an asymmetry can be created using the slots 12 on the rotor and the slots 13 on the stator (Fig. 4).

In the transducer, the pole tip 6 of the magnet 5 can be installed in the rotor 10 dimension, which results in the reduction of the height envelope (figure 5), and the magnet 5 can be placed in the rotor 10 dimension

(Fig. 6, reversed construction).

The Converter operates as follows.

When voltage is applied to the control windings, the rotor rotates with the output shaft due to the electromagnetic interaction forces. The direction of rotation of the output shaft / converter depends on the order of phase rotation. One of the sections of each of the two coils is included in one of the phases of the network,

and the other sections of both coils are connected in parallel to the third phase. The converter can also operate from a single-phase network with a phase-shifting capacitor when switched on by any of the known circuits.

Claims (1)

Invention Formula Electromechanical inductor a time device converter containing a stator with a double-coil winding on a magnetic core made in the form of a rod with a thickening in the middle and pole lugs at the ends; gear rotor mounted with a radial clearance relative to the pole pieces of the magnetic circuit and axially offset from the ring pole tip, which is 1 in that in order to povsheni fast and reliable by compensating for inertial forces resulting from the movement of the clock hands, the rod. the magnetic circuit is executed in an arc a circle concentric with the rotor, and provided with an additional pole piece at the site of thickening, and at the end of the gear rotor there is a cylindrical protrusion placed with a radial clearance relative to the ring tip of the magnet. Yu FIG. 2 fig.z ten with..:; MSh D FIG. B // G /. one yiM-i /. at five five .five h eight srig.6 f1 / g7