SU1379898A1 - Reversible single-phase step motor - Google Patents

Abstract

The invention relates to electrical engineering, to reversible single-phase stepper motors, and can be used in an electronic-mechanical clock. The goal is to simplify the design. The electric motor contains a control winding and a magnetic core, 4 with a hole in which rotor 5 is installed, one or two movable rods 6 and 10 with magnetic tips 7 and 9, each of which, in contact with the magnetic core 4 of the engine, determines one or another direction of rotation of the rotor 5 When used in the construction of a single movable rod with a magnetic tip 7, one of the directions of rotation of the rotor 5 is determined by the configuration of the plate of the magnetic conductor 4, the other direction is brought into contact with the plate of the magnetic conductor 4 with a magnetic tip 7 of the movable rod 6. The engine contains an electrical contact pair, one of the contacts of which is fixed on the base, the other on the movable rod 6 or 10. Simultaneously with the switching of the direction of rotation of the rotor of the engine, the power is switched. 2 з.п, ф-л, 5 Il. 6-5 p r s f (L with c with cx with oo

Description

F1 / G4

The invention relates to electrical engineering, to stepper motors for an electromechanical clock.

The purpose of the invention is to simplify the engine design.

FIG. 1 shows the proposed engine; in fig. 2 is a section A-A in FIG. one; in fig. 3 - engine, second performance; in fig. A is a section B-B in FIG. 3; in fig. 5 - contact device, switching the power mode.

The motor contains a base which is reinforced winding

niya

2 controls placed on the core 3, a plate of the magnetic circuit 4 with a hole in which the rotor 5 is installed, the main rod 6 of the movable fixation element of the rotor 5 with a magnetic tip 7 parallel to the shaft of the rotor 5, spring B relative to the base 1 and installed in the gap between the plate magnetic circuit 4 and the rotor 5.

When the control winding 2 is de-energized 2, the position of fixation of the rotor 5 is determined by the design of the gap between its cylindrical surface and the edge of the hole in the magnetic circuit 4. The mastic tip 7 is held by the spring 8 outside the magnetic circuit plate 4 without affecting the operation of the engine.

When a sequence of opposite-polarity pulses arrives at the winding 2, the rotor 5 rotates in the counterclockwise direction. When the rod 6 is lowered before the magnetic tip 7 contacts the magnetic core plate 4, the fixing position of the rotor 5 when the control winding 2 is de-energized is determined by the position of the magnetic tip 7.

When a sequence of opposite-pulse pulses arrives on the winding, the rotor 5 rotates clockwise.

In the second version of the motor (Fig. 3 and 4), the fixation position of the rotor 5 with de-energized winding 2 is determined by the magnetic fields 7 and 9, which are in contact with the magnetic circuit 4. When the magnetic tip 7 of the MOVIE110 is put in contact with the magnetic circuit plate 4 rod 6 rotor 5 when entering into the winding 2 control

sequences of opposite-polarity pulses rotate counterclockwise, and magnetic tip 9

from the movable rod 10 - against the fab needle.

The blocking node prevents simultaneous contact with the plate of the magnetic carrier 4 of both

0 magnetic tips 7 and 9 or simultaneously lift them to eliminate the indefinite rotation of the rotor 5. The locking assembly contains a locking bar 11, which is spring-loaded relative to the base 1 by the spring 12, recesses 13 and 14 on the rods

6 and 10, spring-loaded springs 8 and 15.

The lock is performed as follows.

0 way.

When pressing the rod 6, the locking bar 11 under the action of the bevel of the lower recess 13 of the rod 6 deflects to the right and leaves the upper recess 14 of the rod 10, which under the action of the spring 15 leaves the zone of the magnetic core 4. Simultaneously with the insertion of the magnetic tip

7 rod 6 in the area of the magnetic circuit 4 0 locking bar 11 fixes

the position of the rod 6 in its upper recess 13, and the rod 10 - in the lower recess. In this case, the magnetic tip 7 of the rod 6 is in contact with the magnetic core 4, the magnetic tip 9 of the rod 10 is out of contact with the magnetic core 4.

The movable fixation element of the rotor 5 is provided with an electrical contact 16, which, when the movable rod 6 is lowered, closes the contact 17 located on the engine housing 1. The contact pair 16 and 17 are opened simultaneously with the removal of the magnetic tip 7 from the zone of the magnetic circuit 4 under the action of the spring 8. This activates the accelerated supply of pulses to the motor control winding 2 simultaneously with the reversing of the rotor 5.

Claims (3)

1. Reversible single-phase stepper motor 5 comprising a base in which a core with a control winding is placed, connected to a magnetic conductor in which a hole is made, in which a rotor is placed. five 0 five movable rotor fixation element with a ferromagnetic tip placed in the gap between the magnetic conductor and rotor, characterized in that, in order to simplify the design, the movable rotor fixation element is made in the form of a rod parallel to the rotor shaft mounted with the possibility of longitudinal movement in the hole , made in the base, and spring-loaded relative to the base. 2. The engine according to claim 1, characterized in that the movable rotor fixation element is provided with an additional spring-loaded bearing the base with a rod with a ferromagnetic tip at the end and a locking bar with two holes, and both rods are placed in these holes and threaded in the upper and lower parts with a groove T oblique in the upper part under the locking bar, 3. The engine on the PP. 1 and 2, characterized in that it is provided with a contact pair, one of the contacts of which is placed on the base, and the other is fixed in the upper part of the movable rod, intended for switching control circuits. /one srig.1 FIG. g Xx a Fig.d