DE102010016563A1 - Device for converting energy from an oscillatory movement into electrical energy and arrangement - Google Patents

Abstract

The invention relates to a device for converting energy from an oscillatory movement into electrical energy, in particular from an oscillatory movement caused by water waves, with: a base body which is configured to carry out an oscillatory movement due to an external oscillatory force acting on the base body, a Main axis of rotation, which is formed in the base body in an essentially upright position regardless of the state of inclination of the base body during the oscillatory movement, a conversion mechanism which is configured to convert the oscillatory movement of the base body into a rotary movement of a support system around the main axis of rotation, and several gyroscopes, which arranged on the support system and each configured to use energy from a rotational movement of an assigned gyroscopic mass about a precessing gyroscopic rotation axis according to d To convert the dynamo principle into electrical energy. The invention also relates to an arrangement with several devices for energy conversion.

Description

The invention relates to a device for converting energy from an oscillatory movement into electrical energy, in particular from an oscillatory movement caused by water waves, as well as an arrangement with a plurality of such devices.

Background of the invention

It has been proposed to use the mechanical energy of water waves to generate electrical energy. A mechanism that can be used for this purpose is in the document US 4,352,023 disclosed. Here, the oscillatory wave motion, which receives a floating body on the waves, converted into a rotational movement, which can then be used to gain the dynamo principle of electrical energy.

In the document US 7,375,436 B1 There are described techniques and devices that use the precession of a gyroscope to drive a generator that produces electrical energy. The known technologies can be used to extract electrical energy from the oscillating motion of water waves.

Also in the document DE 689 11 507 T2 a device is disclosed with which an oscillatory movement of sea waves into usable energy is convertible.

Summary of the invention

The object of the invention is to provide a device for converting energy from an oscillatory movement into electrical energy, with which a more efficient energy conversion is possible.

This object is achieved by a device for converting energy from an oscillatory motion into electrical energy, in particular from an osziliatorischen movement caused by water waves, according to the independent claim 1. Furthermore, an arrangement with several such devices according to independent claim 12 is provided. Advantageous embodiments of the invention are the subject of dependent subclaims.

• – einem Basiskörper, welcher konfiguriert ist, aufgrund einer auf den Basiskörper einwirkenden äußeren oszillatorischen Kraft eine oszillatorische Bewegung auszuführen,
• – einer Hauptdrehachse, die in dem Basiskörper unabhängig vom Neigungszustand des Basiskörpers bei der oszillatorischen Bewegung im Wesentlichen aufrecht stehend gebildet ist,
• – einem Wandlungsmechanismus, welcher konfiguriert ist, die oszillatorische Bewegung des Basiskörpers in eine Drehbewegung eines Tragesystems um die Hauptdrehachse zu wandeln, und
• – mehreren Kreiselgeneratoren, welche auf dem Tragesystem angeordnet und jeweils konfiguriert sind, Energie aus einer durch die Drehbewegung des Tragesystems verursachten Rotationsbewegung einer zugeordneten Kreiselmasse um eine präzessierende Kreiselrotationsachse nach dem Dynamoprinzip in elektrische Energie zu wandeln.

The invention encompasses the idea of a device for converting energy from an oscillatory movement into electrical energy, in particular from an oscillatory movement caused by water waves, comprising:

• A base body which is configured to perform an oscillatory movement due to an external oscillatory force acting on the base body,
• A main axis of rotation which is formed substantially upright in the base body independently of the inclination state of the base body during the oscillatory movement,
• A conversion mechanism configured to convert the oscillatory movement of the base body into a rotational movement of a support system about the main axis of rotation, and
• - Several centrifugal generators, which are arranged on the support system and each configured to convert energy from a caused by the rotational movement of the support system rotational movement of an associated centrifugal mass to a precessing rotary axis of rotation according to the dynamo principle in electrical energy.

The device enables efficient energy production by the oscillatory movement, which receives the base body and which is caused for example by a wave motion of a water surface, as lossless as possible by means of the plurality of centrifugal generators in electrical energy is converted. In the process of energy generation, the oscillatory motion executed by the base body is first converted by means of the conversion mechanism into a rotary motion of the support system about a main rotation axis that is substantially upright in the base body. Mechanisms for such a motion conversion are known as such in various embodiments. On the support system several centrifugal generators are arranged. Your storage on the support system allows a rotational movement of the gyro generators each associated gyro around a precessing gyro rotation axis. The dynamo principle is used to obtain electrical energy from the rotational movement of the gyro around the gyro axis of rotation. The efficiency of energy production is significantly supported by the fact that the relatively slow rotational movement of the support system, which is caused by the oscillatory movement of the base body is converted into a fast rotation of the gyroscopes in the gyro precession, which can also be considered as Zwangspräzession. The centrifugal generators rotate with the carrying system in the main axis of rotation and in each case (in addition) carry out a precessing centrifugal movement. The rotational movement of the support system eventually leads to continuously impel the rotation of the rotary mass, in which case a substantial increase in the rotational frequency takes place, namely the frequency of rotation of the support system to the main axis of rotation to the frequency of rotation of the centrifugal mass of the centrifugal generators.

A preferred embodiment of the invention provides that the conversion mechanism configured to rotate the support system with a substantially constant frequency. A substantially constant frequency rotation is achieved, for example, by forming the conversion mechanism with a centrifugal governor or a spring force mechanism. As centrifugal force, for example, a so-called Wattscher controller or a Porterscher controller can be used.

In an expedient embodiment of the invention can be provided that the conversion mechanism is configured to rotate the support system with a frequency that causes the rotation of the gyro around the gyro axis of rotation with a system natural frequency.

A development of the invention may provide that the conversion mechanism is formed with a flywheel which couples to the main axis of rotation, wherein the conversion mechanism derived from the oscillatory movement of the base body driving force is at least partially introduced into the flywheel for the rotational movement about the main axis of rotation.

An advantageous embodiment of the invention provides a starting mechanism, which is configured to put the rotary mass in an initial phase in an initial rotation.

In this way, the respective rotary mass of the plurality of centrifugal generators is set in rotation at the beginning of the operation for generating energy, so that subsequently caused by the rotational movement of the support system Zwangspräzession the individual gyros takes place. The rotational movement of the carrying system serves continuously to drive the centrifugal movement, from which the electrical energy is obtained according to the dynamo principle.

Preferably, a further development of the invention provides that the starting mechanism is configured, by utilizing a portion of the driving force for the rotational movement of the support system in the starting phase to put the rotary mass in the initial rotation. The starting mechanism is formed, for example, with a centrifugally driven drive ring, which is preferably inclined axially, radially, or otherwise, with the drive ring coupled to transmit the drive force to the gyroscope to effect the initial rotation.

In an advantageous embodiment of the invention can be provided that the conversion mechanism and the starting mechanism are formed cooperatively, such that the support system is at least temporarily decoupled during the starting phase of the driving force for the rotational movement of the support system and at the latest after completion of the starting phase is coupled thereto.

A development of the invention may provide that the conversion mechanism is formed with at least one planetary gear.

A preferred embodiment of the invention provides that the plurality of centrifugal generators are formed with a coil device and a magnetic device which is arranged on the associated centrifugal mass. the magnetic device is preferably formed by means of permanent magnets. Their arrangement on the gyroscopic leads in operation to the fact that the magnetic device rotates in the coil field, so that according to the dynamo principle electrical energy is obtained.

In an expedient embodiment of the invention can be provided that in the coil means coils are arranged distributed on a spherical shell.

An advantageous embodiment of the invention provides that the plurality of centrifugal generators are arranged on a support platform of the support system. On the support platform, the individual centrifugal generators are each freely rotatable about at least two axes of rotation, wherein the two axes of rotation need not necessarily be formed at right angles to each other. As a result, the Zwangspräzession the gyroscope is possible, which in turn is made possible by the rotational movement of the support system and the corresponding storage of the centrifugal generators on the support system. It may be provided that the plurality of centrifugal generators are mounted on the support platform of the support system so that upon rotation of the support platform, a respective housing of the centrifugal generators maintains its absolute orientation. In one embodiment, a current decrease of the centrifugal generators is formed free of electrical sliding contacts.

Preferably, a development of the invention provides that the base body is formed with a float. With the aid of this embodiment, the device is designed for a conversion of the oscillatory movement of water waves into electrical energy. The oscillatory motion received by the float is transmitted to the base body, which in one embodiment can itself form the float, followed by the described energy conversion chain.

An embodiment of the invention may provide that the base body is formed with an outer and an inner base body, wherein the inner base body is mounted inside the outer base body by means of a floating storage. The floating bearing is formed in an embodiment in which the inner base body floats in a liquid accommodated in the outer base body. The inner and the outer base body are movably connected in one embodiment via at least one lever arm. The carrying system with the several centrifugal generators is arranged in the inner base body. A further development may provide that, alternatively or additionally, the outer and the inner base body are connected to one another via at least one mechanical coupling, so that a relative movement between the outer and the inner base body can take place.

In connection with the arrangement with a plurality of devices in one of the aforementioned embodiments, it can be provided that the network structure formed is designed as a star-shaped network structure. For example, the arrangement of the nodes and the edges connecting the nodes of the network structure in the manner of a spider web is possible.

If a floating network structure is formed, anchoring elements are arranged in an embodiment on the network structure, preferably at the edge, with which the network structure is fixed locally in the water.

Description of preferred embodiments of the invention

The invention will be explained in more detail below with reference to preferred embodiments with reference to figures of a drawing. Hereby show:

1 a schematic representation of an arrangement with several devices for converting energy from an oscillatory movement of water waves into electrical energy,

2 a schematic representation of a device for converting energy from an oscillatory movement into electrical energy, in which a base body is designed as a floating body,

3 a schematic representation of a support system with multiple centrifugal generators on a support platform,

4 a schematic representation of a gyro generator,

5 a schematic representation of an arrangement with several devices for converting energy from an oscillatory movement into electrical energy with a network structure in which the plurality of devices are arranged in nodes and along the edges of the network structure connecting the nodes,

6 a schematic representation of a device for converting energy from an oscillatory movement into electrical energy, in which a base body is formed with an outer base body and a floating therein inner base body,

7 a schematic representation of a conversion mechanism for converting a rocking movement of the outer base body in 5 in a rotational movement about a main axis of rotation and

8th a schematic representation of a coupling of a lever arm to the conversion mechanism.

1 shows a schematic representation of an arrangement with several devices for converting energy from an oscillatory water wave movement in electrical energy. The several devices are each provided with a base body designed as a floating body 1 running, which on a water surface 2 floats and in this way the oscillatory wave motion of the water surface 2 absorbs, causing the base body 1 itself is put into an oscillatory motion. Under water, the multiple devices are via electrical cables 3 connected, in particular, serve the derivation of the electrical energy obtained and contribute to grid stability.

2 show a schematic representation of a single device for converting energy from an oscillatory water wave movement in electrical energy, in which executed as a floating body base body 1 on the water surface 2 swims. In the base body 1 a conversion mechanism is arranged, which in the illustrated embodiment, a plurality of planetary gear 4 . 5 includes, that of the base body 1 recorded oscillatory wave motion in a rotational movement about a main axis of rotation 6 is converted. The main axis of rotation 6 is independent of the rocking motion of the base body 1 essentially upright in the base body 1 ,

3 shows a schematic representation of a support system 7 with a carrier platform 8th around the main axis of rotation 6 rotatably in the base body 1 is stored. On the carrier platform 8th are several centrifugal generators 9 arranged, which are each freely rotatable about at least two axes, wherein the two axes do not necessarily enclose an angle of 90 °. The several centrifugal generators 9 each have a coil device with a plurality of electric coils and a arranged in the coil field magnetic device which has permanent magnets. This is in detail in 4 shown. Do the washing up 20 . 21 are on an outer spherical shell 22 arranged, which is a magnet device with permanent magnets 23 at least partially encompassing. The permanent magnets are on a centrifugal mass 24 formed, which in operation about a rotation axis 25 rotated at a frequency many times greater than the frequency at which the carrier platform 8th around the main axis of rotation 6 turns (cf. 3 ).

In operation, the carrier platform rotates about the main axis of rotation 6 , causing the multiple centrifugal generators 9 due to their storage on the carrier platform 8th each execute a forced precession. The rotational movement of the centrifugal mass 24 is used according to the dynamo principle for gaining electrical energy.

The mechanisms showing the precessing centrifugal motion of the multiple centrifugal generators 9 are known as such from another context. Exemplary is on the document US 6,942,601 B2 . US 5,353,655 such as US 3,726,164 directed. There, the use of a person's forearm rotation to accelerate a gyro in a spherical housing with respect to the mechanical principles will be described. These mechanical principles are used in the proposed device for energy conversion.

5 shows a schematic representation of an arrangement with multiple devices 50 for converting energy from an oscillatory movement into electrical energy with a network structure 51 in which the several devices 50 in knots 52 and along the nodes 52 connecting edges 53 the network structure 51 are arranged. The several devices, which are preferably designed according to one of the previously described embodiments, float on the water surface. The edges are anchors 54 formed, with which the network structure 51 is localized. Via an electrical line 55 the energy gained is tapped.

6 shows a device for converting energy from an oscillatory movement into electrical energy, in which a base body with an inner base body 60 and an outer base body 61 is formed. The inner base body 60 is in one of the outer base body 61 absorbed liquid 62 stored floating. The outer base body 61 is formed with a buoy shape. The inner base body 60 as well as the outer base body 61 are via a lever arm 63 connected, which to a mechanics 64 couples in 7 shown in detail. In operation, the outer base body leads 61 one in 6 by means of an arrow A schematically illustrated rocking motion.

At the in 7 The mechanism shown is a pendulum movement of a lever arm 70 over two auxiliary shafts 71 . 72 and two freewheel gears 73 . 74 as well as an intermediate wheel 75 converted into a rotational movement in the same direction. The two freewheel wheels 73 . 74 transmit moments that are via the lever arm to a drive wheel 70a be transmitted. The intermediate wheel 75 serves to change direction. The two auxiliary shafts 71 . 72 wear in addition to the freewheel gears 73 . 74 each still a fixed gear 76 . 77 , The firm on the auxiliary shafts 71 . 72 mounted gears 76 . 77 at the same time engage a main gear 79 which is on a main shaft 80 sitting.

• – Direkte Verbindung: Die Hauptwelle 80 entspricht der die Welle 6 in 3.
• – Indirekte Verbindung: Die Rotationsenergie wird von der Hauptwelle 80 zuerst in einer Schwungmasse gespeichert. Mittels einer Getriebeübersetzung wird danach ein Teil der Rotationsenergie aus der Schwungmasse auf die Hauptachse 6 (3) übertragen.

The main shaft 80 can be connected to the carrying system in two ways:

• - Direct connection: the main shaft 80 corresponds to the wave 6 in 3 ,
• - Indirect connection: The rotational energy is from the main shaft 80 first stored in a flywheel. By means of a gear ratio is then a part of the rotational energy from the flywheel to the main axis 6 ( 3 ) transfer.

According to 8th is the lever arm with the drive shaft via a joint 90 connected, which allows a second degree of freedom for the movement of the outer base body. As a result, wave movements from different directions can be taken up by the device for energy conversion and made usable.

The amount of rotational energy absorption depends on the relative movement of the outer base body to the inner base body. The resulting bearing forces, which act on the inner base body from the outer base body, are compensated by the inert mass and by the floating support of the inner base body. The mass of the inner base body including flywheel is designed accordingly.

The mechanical energy that is absorbed by the direction-dependent rocking movement of the outer base body can thus be transferred to the conversion mechanism

The features of the invention disclosed in the foregoing description, in the claims and in the drawing may be of importance both individually and in any combination for the realization of the invention in its various embodiments.

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

• US 4352023 [0002]
• US 7375436 B1 [0003]
• DE 68911507 T2 [0004]
• US 6942601 B2 [0037]
• US 5353655 [0037]
• US 3726164 [0037]

Claims (15)

Device for converting energy from an oscillatory movement into electrical energy, in particular from an oscillatory movement caused by water waves, comprising: - a base body ( 1 ), which is configured, due to a base body ( 1 ) to perform an oscillatory movement of the external oscillatory force, - a main axis of rotation ( 6 ) contained in the base body ( 1 ) regardless of the inclination state of the base body ( 1 ) is formed in the oscillatory motion substantially upright, - a conversion mechanism ( 4 . 5 ), which is configured, the oscillatory movement of the base body ( 1 ) in a rotary motion of a carrying system ( 7 ) about the main axis of rotation ( 6 ), and - several centrifugal generators ( 9 ), which on the carrying system ( 7 ) are arranged and are each configured, energy from a by the rotational movement of the support system ( 7 ) caused rotational movement of an associated centrifugal mass ( 24 ) about a precessing rotary axis of rotation ( 25 ) to convert into electrical energy according to the dynamo principle. Apparatus according to claim 1, characterized in that the conversion mechanism ( 4 . 5 ) is configured, the carrying system ( 7 ) to rotate at a substantially constant frequency. Apparatus according to claim 1 or 2, characterized in that the conversion mechanism ( 4 . 5 ) is configured, the carrying system ( 7 ) with a frequency which is the rotation of the gyroscope ( 24 ) about the rotary axis of rotation ( 25 ) causes a natural frequency. Device according to at least one of the preceding claims, characterized in that the conversion mechanism ( 4 . 5 ) is formed with a flywheel which is connected to the main axis of rotation ( 6 ), wherein with the conversion mechanism from the oscillatory movement of the base body ( 1 ) obtained driving force at least partially in the flywheel for the rotational movement about the main axis of rotation ( 6 ) is initiated. Device according to at least one of the preceding claims, characterized by a starting mechanism, which is configured, the centrifugal mass ( 24 ) in an initial phase in an initial rotation. Apparatus according to claim 5, characterized in that the starting mechanism is configured, taking advantage of a part of the driving force for the rotational movement of the carrying system ( 7 ) in the start phase, the gyroscope ( 24 ) in the initial rotation. Apparatus according to claim 5 or 6, characterized in that the conversion mechanism and the starting mechanism are formed cooperatively, such that the carrying system ( 7 ) during the starting phase at least temporarily by the driving force for the rotational movement of the carrying system ( 7 ) is decoupled and at the latest after completion of the start phase is coupled to this again. Device according to at least one of the preceding claims, characterized in that the conversion mechanism with at least one planetary gear ( 4 . 5 ) is formed. Device according to at least one of the preceding claims, characterized in that the several centrifugal generators ( 9 ) with a coil device ( 20 . 21 ) and a magnetic device ( 23 ) formed at the associated centrifugal mass ( 24 ) is arranged. Apparatus according to claim 9, characterized in that in the coil means coils ( 20 . 21 ) on a spherical shell ( 22 ) are arranged distributed. Device according to at least one of the preceding claims, characterized in that the several centrifugal generators ( 9 ) on a support platform ( 8th ) of the carrying system ( 7 ) are arranged. Device according to at least one of the preceding claims, characterized in that the base body ( 1 ) is formed with a float. Device according to at least one of the preceding claims, characterized in that the base body ( 1 ) with an outer and an inner base body ( 60 . 61 ), wherein the inner base body ( 60 ) inside the outer base body ( 61 ) is mounted by means of a floating storage. Arrangement with several devices ( 50 ) for converting energy from an oscillatory movement into electrical energy according to at least one of the preceding claims, wherein the plurality of devices ( 50 ) in nodes ( 52 ) and / or along the nodes ( 52 ) connecting edges ( 53 ) a network structure ( 51 ) are arranged and are each connected to an electrical line for tapping the generated electrical energy. Arrangement according to claim 14, characterized in that a floating network structure is formed, in which the plurality of devices ( 50 ) are each formed with a float and the electrical line are laid under water.

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