SU1356139A1 - D.c.linear motor - Google Patents

Abstract

The invention relates to electrical engineering and can be used in electric drives of tangential tonearms of sound reproducing equipment. The goal is to provide constant traction force for a given working stroke of the moving element. The motor contains a stator 1, a movable element with a permanent magnet 2. The stator is made of identical sections - electromagnets 4. The sections are installed with a gap 6 one relative to the other. The windings of sections are connected according to. When the fields of sections of electromagnets and magnet interact, the field lines of these fields are redistributed in such a way that under one edge of the magnet the frequency of the lines of force increases and decreases along others, as a result of which the plow element moves with the magnet reduced . Performing an electromagnet in the form of separate sections allows a ps-beam of approximately the same induction in the gap between the sections of the electromagnets and the magnet, which leads to a constant traction force of the electric motor. 2 Il. sa & s3at fie.2

Description

113

The invention relates to electro | technology and can be used in electric tangential tonearms of sound reproducing equipment.

The aim of the invention is to provide constant traction force for a given working stroke.

the magnetic field lines of the elec-j romagnets, as a result of which the frequency of the g lines of the magnetic field increases under one edge of the magnet and under the other edge of the magnet decreases, and the movable element with the magnet 2 moves in the direction of the reduced frequency of the magnetic field lines of the magnetic field. an item.

Fig. 1 shows an electric motor, able to take up the position with the smallest

general form; figure 2 - circuit closure-energy. Since the electromagnet is statO

no magnetic fluxes. , pa 1 consists of separate sections with

The electric motor contains a stator with the same parameters, a magnetic moving element with a permanent magnesium induction in the gap between the magnet of the stump 2 and the guides 3. The stator of the moving element and the sections are electrons from identical sections of electromagnets 4 with windings 5. Sections installed with a gap of 6 relative to each other. The size of the gap is chosen in the range of 0.3-0.8 mm. The windings of the sections are connected according to.

The motor works as follows.

When the supply voltage is applied to the windings 5 of electromagnets 4, a magnetic field is formed around each of them, part of the power lines of which. outside the electromagnet from ONE pole to the other, the passage through the magnet of the moving element 2. Another part of the power lines is closed from one pole of the extreme electromagnet to the pole of the other extreme electromagnet, the passage also through the magnetically one another, and the length of the movable element. During the interaction of the section does not exceed half the length of the field of electromagnets 4 and the permanent magnet magnet in the direction of the second, its axis redistributes.

Editor N.Slobod nickname

Compiled by V.Lavrov

Tehred A. Kravchuk Proofreader A.T.

Order 5806/50 Circulation 659 Subscription

VNIIPI USSR State Committee

for inventions and discoveries, 113035, Moscow, Zh-35, Raushsk nab., 4/5

Production and printing company, Uzhgorod, Projecto st., 4

the magnetic field lines of the electrons of the romagnets, as a result of which the frequency of the magnetic field lines g increases under one edge of the magnet, and under the other edge it decreases, and the movable element with the magnet 2 moves in the direction of the reduced frequency of the magnetic field lines, Take the position with the lowest

The stator magnet is approximately the same throughout the working stroke, which leads to a constant pulling force.

Claims (1)

Invention Formula A linear DC motor that contains a stator with an electromagnet in the form of a rod with a distributed winding and a moving element with a permanent magnet, the axis of magnetization of the poles of which is perpendicular to the axis of the rod, characterized in that in order to ensure a constant tractive force for a given the working stroke of the movable element, the electromagnet of the stator is made of separate sections installed with a clearance related