DE102014012737A1 - Electrically powered motor - Google Patents

Abstract

An electrically driven motor is proposed which comprises at least one fixed stator housing (1) with a rod (3) arranged on the stator housing (1) in a mounting plane (2) and perpendicular thereto, the rod (3) having ferromagnetic properties, a spool support (4) slidably mounted on the rod (3) by enclosing the rod (3) in a sheath manner and via which the driven movement (9) takes place, at least one spool (5), the spooling wire (10) on the outside and / or inside of the bobbin (4) is wound, a permanent magnet (6) which is arranged on, on or in the stator housing (1) while maintaining an air gap (7) to the coil (5), and electrical conductors (8) for a current flow in the coil (5).

Description

The invention relates to a motor which is driven by electrical energy and performs a driven movement with a degree of freedom. With a drive movement can be generated in reverse operation electrical energy, so that the engine then works as a generator. In the following, therefore, in the interests of a better understanding, only one engine is used.

Are known linear motors with a translatory degree of freedom, based on the principle of magnetism in which attract or repel opposing poles.

In such a linear motor, vibration coils are arranged in a coil unit which move over permanent magnets in which the current phase of each coil is changed. The change speed determines the engine speed.

Such linear motors are used for different drive purposes.

In the DE 10 2008 043 136 A1 a linear motor driven hammer is described. The linear motor is here designed such that it moves the racket by means of a magnetic field in the provided one translational degree of freedom, wherein the racket is designed to generate its own magnetic field with opposite magnetic poles.

The DE 20 2013 005 537 U1 describes a ramming device for bottom seal, the drive is a linear drive with a stator and an axially reciprocable linear motion. Provided here is a control device for controlling the frequency and / or the amplitudes of the linear rotor to change the tamping parameters and in particular the single impact energy.

The disadvantage of this and rotary electric motors is that they consume more energy with increasing speed or linear velocity.

The object of the invention is to propose a motor whose movement change is essentially decoupled from energy consumption. In reverse operation energy should be generated.

The problem is solved with the features of claim 1. Advantageous embodiments are the subject of the dependent claims.

The electrically driven motor according to the invention has at least
a fixed stator housing having a rod arranged on the stator housing in a mounting plane and perpendicular thereto, the rod having ferromagnetic properties,
a coil carrier which is slidably mounted on the rod by enclosing the rod in a sheath-like manner and via which the output movement takes place;
at least one coil whose coil wire is wound on the coil carrier outside and / or inside,
a permanent magnet, which is arranged on, on or in the stator housing while maintaining an air gap to the coil,
and electrical conductors for a current flow in the coil.

The electrical conductors for the flow of current into the coil are guided via a control device for the frequency of the current, so that the motor can preferably be operated with a sinusoidal current frequency in the lower Hertz range, preferably between 0.5-20 Hertz.

In a preferred embodiment, the permanent magnet is a ring magnet or consists of annularly arranged permanent magnet elements.

The inner jacket of the ring magnet or the annularly arranged permanent magnet elements is matched to the outer shell shape of the coil such that the air gap between the permanent magnet and the coil during the oscillating translational movement of the bobbin and thus the coil is small.

The rod is in a preferred embodiment, an iron core or a core of mutually insulated iron sheets. In its longitudinal extent, it may be cylindrical or have a prismatic cross-section.

In this case, the rod should project beyond the permanent magnet in height relative to the mounting plane of the rod on the stator housing. In this way it is ensured that the coil carrier is sufficiently guided in its oscillating translational movement.

Furthermore, the rod is preferably arranged vertically in the space in order to use the gravitation during the return movement of the bobbin.

The coil wire for the coil is in a preferred embodiment in a known manner of copper. In a multilayer coil wire winding, the coil wire should have a triangular cross-section so that the windings are intertwined to grab. As a result, a smooth coil surface can be achieved.

An embodiment of the motor according to the invention is shown in the drawing.

The in 1 in section shown electrically driven motor has a fixed stator housing 1 in the form of a plate with a mounting plane 2 , With the stator housing 1 connected and perpendicular to the mounting plane 2 as well as vertically in the room is the cylindrical rod 3 arranged, which has ferromagnetic properties. The rod is preferred 3 an iron core or a core of mutually insulated iron sheets.

The cylindrical coil carrier 4 is on the bar 3 slidably arranged by the rod 3 covers like a coat. The bobbin has a coil 5 on, their coil wire 10 made of copper and outside on the coil carrier 4 wound up in several layers. The coil wire has a triangular cross-section so that the windings can intermesh and a smooth cylindrical surface of the coil 5 arises.

On the plate of the stator housing 1 is still a ring the coil 5 enclosing permanent magnet 6 while maintaining an annular air gap 7 to the coil 5 arranged. The inner shell of the ring magnet is on the outer shell shape of the coil 5 coordinated, in which the inner jacket is cylindrical, so that the annular air gap 7 between the permanent magnet 6 and the coil 5 can be made small.

The permanent magnet 6 is in height relative to the attachment level 2 of the staff 3 on the stator housing 1 from the staff 3 surmounted.

Electric conductors 8th ensure the flow of current into the coil 5 , The electrical conductors 8th for the flow of current into the coil 5 are guided via a control device, not shown, for the frequency of the current, so that the motor can be operated with a sinusoidal current frequency, preferably between 0.5-20 Hertz. The electrical conductors are permanently elastic or trailing cables or conductor lines, etc. are used.

If a current flow with sinusoidal frequency in the coil 5 becomes the coil 5 repelled by the iron core and the permanent magnet at the first half-wave and tightened at the next half-wave, etc. The coil 5 thus accomplishes together with the coil carrier 4 a movement with one degree of freedom, an oscillating translational movement on the rod 3 , This is the output movement 9 , Is the coil carrier 4 z. B. connected via a connecting rod with a crankshaft, this output motion is converted into a rotational movement about the crankshaft axis. By a change in frequency of the current flow, the frequency of the output movement and thus the desired speed of the crankshaft can be adjusted. By working in the lower hertz range, the energy consumption of the engine is highly independent of speed.

If the motor is to be operated as a generator, is on the bobbin 4 from the outside, z. B. via a crank mechanism, an oscillating translational movement exerted, which is converted into electricity and to the electrical lines 8th can be tapped.

LIST OF REFERENCE NUMBERS

1

stator

2

mounting level

3

Rod

4

coil carrier

5

Kitchen sink

6

permanent magnet

7

air gap

8th

electrical conductors

9

output movement

10

coil wire

QUOTES INCLUDE IN THE DESCRIPTION

This list of the documents listed by the applicant has been generated automatically and is included solely for the better information of the reader. The list is not part of the German patent or utility model application. The DPMA assumes no liability for any errors or omissions.

Cited patent literature

• DE 102008043136 A1 [0005]
• DE 202013005537 U1 [0006]

Claims (11)

Electrically driven motor at least comprising a fixed stator housing ( 1 ) with a on the stator housing ( 1 ) in a mounting plane ( 2 ) and perpendicular to this rod ( 3 ), whereby the rod ( 3 ) has ferromagnetic properties, a coil carrier ( 4 ), on the staff ( 3 ) is arranged slidably by the rod ( 3 ) and in which the output movement ( 9 ), at least one coil ( 5 ), whose coil wire ( 10 ) on the outside and / or inside of the coil carrier ( 4 ), a permanent magnet ( 6 ), which on, on or in the stator housing ( 1 ) while maintaining an air gap ( 7 ) to the coil ( 5 ), and electrical conductors ( 8th ) for a current flow in the coil ( 5 ). Electrically driven motor according to claim 1, characterized in that the electrical conductors ( 8th ) for the current flow in the coil ( 5 ) are guided via a control device for the frequency of the current. Electrically driven motor according to claim 1 or 2, characterized in that the current frequency for driving the motor is sinusoidal in the lower Hertz range, preferably 0.5-20 hertz. Electrically driven motor according to one of claims 1 to 3, characterized in that the permanent magnet ( 6 ) is a ring magnet or consists of annularly arranged permanent magnet elements. Electrically driven motor according to claim 4, characterized in that the inner jacket of the ring magnet or the annularly arranged permanent magnet elements on the outer shell form of the coil ( 5 ) is tuned such that the air gap ( 7 ) between the permanent magnet ( 6 ) and the coil ( 5 ) during the oscillating translational movement of the bobbin ( 4 ) and thus the coil ( 5 ) is small. Electrically driven motor according to one of claims 1 to 5, characterized in that the rod ( 3 ) is an iron core or a core of mutually insulated iron sheets. Electrically driven motor according to one of claims 1 to 6, characterized in that the rod ( 3 ) is cylindrical in its longitudinal extent or has a prismatic cross-section. Electrically driven motor according to one of claims 1 to 7, characterized in that the rod ( 3 ) the permanent magnet ( 6 ) in height relative to the level of attachment ( 2 ) of the rod ( 3 ) on the stator housing ( 1 ) surmounted. Electrically driven motor according to one of claims 1 to 8, characterized in that the rod ( 3 ) is preferably arranged vertically in space. Electrically driven motor according to one of claims 1 to 9, characterized in that the coil wire ( 10 ) has a triangular cross-section in a multilayer coil wire winding, so that the windings interlock. Electrically driven motor according to one of claims 1 to 10, characterized in that the motor is operable as a generator by acting on the coil carrier ( 4 ) is exerted from the outside an oscillating translational movement and the electricity generated at the electrical lines ( 8th ) can be tapped.

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