BG747Y1 - LINEAN ELECTRICAL MACHINE - Google Patents

Abstract

The linear machine is applied in electrical- and electric drive. It has a reduced would be the result of minimizing air traffic diy. The machine contains an inductor, from left (1) and right (2) poles, and ring-shaped a permanent magnet (3) mounted in the middle of an in- the dome, symmetrically to the two poles. Induk- the fertilizer is closed by means of two lids (4 and 5) made of a material that prevents magnetite- of their use. Anchor is made of two drivers, two ring and magnet. Rings (8 and 9) are connected to each other by a magnet conduit (10). The left (6) and the right (7) anchor guide are also made from a material that prevents their magnetization, tion. The two rings of anchor are connected structurally and magnetically via the magneto-conductor (10). Coils (11 and 12) are wound onto the rings (8 and 9) of the anchor in turn and in opposite directions. ki. In generating mode at both ends of the windings is connected to an electric- (13). In driving mode at both ends of the coils a source of DC current (14).

Description

(54) LINEAR ELECTRICAL MACHINE

Technical field

The utility model relates to the construction of an electric machine and is applicable in the field of electrical engineering and electrical propulsion.

BACKGROUND OF THE INVENTION

Devices are known which use cyclic combustion processes to produce mechanical vibrations, which in turn are converted into electrical energy. Practical applications are found in known gas generators, in which high power powerless engines drive compressor units. To generate electricity, the compressor supplies a high-speed gas turbine connected to a rotary electric generator. These engines, regardless of the type of process used, have a limited compression ratio and therefore have a low efficiency. Such motors are flywheel-free, which is why they do not accumulate energy from previous cycles for the next ones and have a low oscillation frequency (in the order of 20 Hz), although they operate with small oscillating masses.

There is a solution [1] with two coupled or unconnected pistons, which are both anchors of a linear electric generator of permanent magnets or electromagnets with excitation coils. This solution is only applicable for low power, both because of its high speed and for some structural reasons.

[2] There is also a known solution [2] for generating electricity in a cyclic combustion process, in which mechanical straight-line reciprocating motions of a piston system of two counter-combustion chambers are triggered, in which a cyclically repeated combustion process takes place. Part of the energy of linear motion is converted into electricity by means of a linear generator, the anchor of which is made as a permanent magnet or electromagnet fixed to the piston system and moving together with it.

A linear electric motor [3] with a moving coil is known, which has poles arranged against permanent magnets. The latter are magnetized back to the poles penetrating through the openings of the coil, on which the coils are wound. As current flows through the coil, a magnetic flux is created that interacts with the magnetic flux of the permanent magnets. In this interaction, the coil moves along the poles. The coil is guided on both sides of the magnet.

[4] There is a known solution [4] comprising a core of magnetically conducting material, on which there is a coil of two parts wound by the same conductor. Each part has an equal number of turns, in which the winding direction of one part is opposite to the winding direction of the other part, in which when a current is supplied in the center of the solenoid, a pole is created opposite to the poles created in both its end.

A common disadvantage of the known devices is the large magnetic losses and their extended dimensions, which makes them too inconvenient and inefficient. This is due to the presence of large air gaps and the need for strong excitation by the magnet.

The utility of the utility model is to create an electrical machine that minimizes losses by minimizing air gaps, resulting in increased efficiency of this type of machine.

The technical nature of the utility model

The problem is solved with a device that contains an inductor and an anchor. The latter is mounted on the inductor so as to ensure the mounting and the possibility of unobstructed movement of the parts relative to each other axially. The inductor consists of a left and a right magnetic pole, with a permanent magnet or an electromagnet placed between them. The anchor consists of guides to each ring left and right, on which are wound in series connected windings with an equal number of turns and the same thickness of the wire. The direction of the coiling of the coils in the two rings is opposite. The anchor rings are connected to each other by a magnetic circuit.

The inductor poles, the anchor rings, and the magnetic core are made of conductive material. The advantages of the proposed type of electric machine are the small air gaps between the anchor and the inductor, the versatility and the structural simplicity of implementation.

Description of the attached figures

Figure 1 is a longitudinal sectional view of a cylindrical machine with permanent magnets according to the utility model. 1 denotes the left pole of the inductor, 2 denotes the right pole of the inductor, 3 denotes a permanent magnet, 4 and 5 non-magnetic caps, 6 left anchor guide, 7 right anchor guide, 8 left anchor ring, 9 - right anchor ring, 10 anchor magnet wire, 11 and 12 windings, 1 3-electric power consumer, 14-DC power source, 15-cable;

Figure 2 (a) is a partial longitudinal section of a cylindrical inductor with electromagnets. 21 denotes the left pole of the inductor, 22 denotes the right pole, 24 the core of the electromagnet, 24 the excitation coil.

Figure 2 (b) is a section A-A of Figure 2 (a) showing the configuration of the electromagnet coils;

3 is a cylindrical machine according to the utility model with an electromagnet consisting of a magnetically conductive sleeve 32 with an outer 34 and an inner 33 winding;

Figure 4 shows the machine according to the utility model with electromagnets and two rectangular inductors with two separate windings. 41 indicates the upper inductor, 42 the lower inductor, 43 the excitation coil of the upper reducer, 44 the excitation coil of the lower inductor.

Examples of implementation of the utility model

An exemplary embodiment of the device is shown in Figure 1. In this embodiment, the machine is made in cylindrical form with a permanent magnet. The inductor consists of a left pole 1, a right pole 2, and a ring permanent magnet 3, which is mounted in the middle of the inductor, symmetrically with respect to the two poles. The inductor is closed by means of two covers 4 and 5 made of non-magnetizing material. The anchor is made of two guides, two rings and a magnetic core. The rings 8 and 9 are connected to each other by a magnetic circuit 10. The left anchor guide 6 and the right anchor guide 7 are also made of non-magnetizing material. The two anchor rings are connected structurally and magnetically by the magnetic core 10. The windings 11 and 12 are wound on the anchor rings 8 and 9 in series and in opposite directions. In the generator operating mode, any power consumptive is connected to the two ends of the windings 13. In the motor operating mode, a direct current source 14 is connected to the two ends of the windings.

Another embodiment of the utility model is shown in Figure 2. In this case, the inductor is designed as a cylindrical housing with electromagnets arranged concentrically. There are four electromagnets, but an unlimited number of electromagnets is possible. The latter are connected in series, with the same number of coils of cable with the same cross-section.

In the motor mode of operation of the machine and the inductor is designed as an electromagnet connected in series with the windings 11 and 12, the machine can also operate with a single-phase alternating current.

Another exemplary embodiment of the utility model is shown in Figure 3. The inductor embodiment is also provided with an electromagnet made of a magnetically conductive sleeve 32 with an external winding 34 and an internal winding 33. The windings are of equal number of turns and thickness of the conductor, connected in series. , where the winding direction of the outer winding is opposite to the winding direction of the inner winding.

Another embodiment is shown in Figure 4, where the electric machine has electromagnets and two inductors 41 and 42, with a rectangular section and with two separate windings 43 and 44, which are powered by the same electromotive voltage.

The windings 43 and 44 have the same number of turns and have the same cross section of the cable.

Application of utility model

It is possible for the machine to operate in generator and motor mode.

When the machine is operating in generator mode, as a result of an external mechanical force applied to the anchor axis, the machine is driven from one deadlock to the other at a certain speed and an electromotive voltage is induced in the windings.

In the motor mode, a direct current is applied in the windings of the anchor and as a result of electromagnetic force, the anchor moves to the inductor within the axial constraints, performing mechanical work. The utility model can be used as long-range relays, dampers, fuelless internal combustion engines, compressors, gauges and other aggregates for reciprocating motions.

Claims (2)

Claims A linear electric machine comprising a two-pole inductor (1) and (2) mounted between them a permanent magnet (3) or an electromagnet, anchor with guides (6) and (7), rings (8) and (9), connected to each other by a magnetic core (10), characterized in that 15 rings (8) and (9) are wound on the rings (8) and (9) with an equal number of turns and the same thickness of the conductor, such as the direction of the winding of the coils in the ring (8) is opposite to the direction of the winding of the coils in the ring (9). Linear electric machine according to claim 5, characterized in that the inductor poles (1) and (2), the anchor rings (8) and (9) and the magnetic core (10) are made of a magnetic conductive material.