SU792211A2 - Polarised electromechanic transducer for electric timepiece - Google Patents

Description

(54) POLARIZED ELECTROMECHANICAL CONVERTER FOR ELECTRIC HOURS

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The invention relates to time devices, in particular, to polarized electromechanical transducers with a bridge-type magnetic system used in electro-mechanical quartz or tuning forks 1.

According to the main author. St. № 686 008 is known polarized elekromehanichesky transducer for elektrochasov comprising a toothed rotor vnopolyusny stator winding control and a permanent magnet, and permanent magnets arranged in the rotor envelope and a control winding configured sectioned on ferromagnetic cores, placed in a plane perpendicular to rotor axis.

The disadvantage of this converter is m6, that the main advantages can hardly be realized due to increasing technological difficulties for the converter with small steps, i.e. when increased speed is required.

As the rotor pitch decreases, the number of coil sections of the control winding increases, the technology becomes more complex and the utilization rate of the active volume decreases due to low

filling the last active material.

The purpose of the invention is to improve manufacturability and speed.

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This goal is achieved by the fact that the polarized electromechanical converter for the electric clock in the magnetic circuit has radial grooves, and the poles forming

W located in a plane perpendicular to the plane of the magnetic circuit, while the width of the poles of the magnetic circuit, and equal to the width of the teeth of the rotor.

FIG. 1 shows a converter, a general view, in FIG. 2 - the same, top view, in FIG. 3 is a general view of a rotor with a magnetic system; FIG. 4 is the same, top view, in FIG. 5, a general view of a converter with one

20 section-coil winding control.

On axis 1, a rim-pole rotor 2 is rigidly fixed with teeth 3 in the form of blades bent away from its disk part and enclosing a permanent magnet 4 coaxially located with the rotor 2, magnetized in the axial direction.

The control winding is made in the form of sections-coils 5 and% on ferromagnetic cores 6 with pole

bssmaks 7. Cores with riojiKJCHiJMH shoes are made. in the form of flat plates. The axes of the coil sections 5, and 5 are located in a plane perpendicular to the axis 1 of the rotor 2.

Coaxially with the rotor 2, the shaped plate 8 of ferromagnetic material is installed, which acts as a rotor clamp 2 in the pauses between pulses, and a magnetic conductor 9. Radial grooves 10 are made on the magnetic conductor with the formation of poles 1 lying in a plane, perpendicular to the plane of the magnetic conductor 9. Pole width 11 magnetic 9.ravna width of the teeth 3 of the rotor 2.

In the converter shown in FIG. 3, 4 coil sections 5 and S, .j are located outside the rotor dimensions, in the converter shown in Fig. 5, it is possible to obtain a sufficiently small step size with one section of the control winding, which greatly simplifies the design of the known converter.

The polarized electromechanical converter operates as follows.

When a current pulse is delivered to the control winding, a magnetic field is created, the magnetic lines of force are closed through the cores 6, the pole shoes 7, the poles 11 of the magnetic core 9, the gaps between the poles 11 and the teeth 3 of the rotor 2 and the rotor disk 2.

Depending on the polarity of the current in the air gap between the poles 11 and the teeth 3 of one pair, the magnetic flux is added to the flux of the permanent magnet 4, while in the air gap it is diametrically

the located pair subtracts the same flows. As a result, the rotating MOMefix rotates the rotor 2 in the direction of the highest conductivity.

At the end of the current pulse, the rotor 2 rotates under the action of the reactive moment due to the presence of the latch 8, and passes into the next stable state.

The cycle then resumes.

In the proposed converter, the number of teeth of the rotor with the number N of the coil sections of the control winding is different than in the known converter.

(-n-2p)

where p is the number of poles 11 of the magnetic circuit 9.

invention formula

Polarized Electromechanical Converter for ElectrOc Asov auth.St. No. 686008, characterized in that, with the aim of improved manufacturability and speed, radial times are made in the magnetic core, forming poles located in a plane perpendicular to the magnetic core, the width of the magnetic core being equal to the width of the rotor teeth.

Sources of information taken into account in the examination

1. USSR author's certificate in application number 2306459 / 18-10, cl. G 04 13/10, dated 04/28/76 (prototype).

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Claims (1)

Claim Polarized electromechanical converter for electric clocks No. 686008, I distinguish it by the fact that, in order to improve manufacturability and speed, radial grooves are made in the magnetic circuit, forming poles located in a plane perpendicular to 30 The planes of the magnetic circuit, while the width of the pole of the magnetic circuit is equal to the width of the teeth of the rotor.