U.S. patent application number 17/059663 was filed with the patent office on 2021-07-08 for system and installation with a rail vehicle movably arranged on a rail part.
This patent application is currently assigned to SEW-EURODRIVE GMBH & CO. KG. The applicant listed for this patent is SEW-EURODRIVE GMBH & CO. KG. Invention is credited to Christian ENDERLE, Olaf SIMON.
Application Number | 20210211018 17/059663 |
Document ID | / |
Family ID | 1000005505400 |
Filed Date | 2021-07-08 |
United States Patent
Application |
20210211018 |
Kind Code |
A1 |
ENDERLE; Christian ; et
al. |
July 8, 2021 |
SYSTEM AND INSTALLATION WITH A RAIL VEHICLE MOVABLY ARRANGED ON A
RAIL PART
Abstract
A system and installation with a rail vehicle movably arranged
on a rail part, includes a first part and a second part. The first
part and the second part are movable in parallel relative to each
other in a movement direction. The first part has a winding around
a leg of a coil core, e.g., a center leg, and the first part has a
guide, e.g., a linear guide, and a permanent magnet situated so as
to be movable in parallel with the movement direction, e.g., in a
linear fashion. The permanent magnet is guided by the guide, e.g.,
in the movement direction, and, for example, is limited in the
front and back in the movement direction.
Inventors: |
ENDERLE; Christian;
(Weingarten, DE) ; SIMON; Olaf; (Bruchsal,
Untergrombach, DE) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
SEW-EURODRIVE GMBH & CO. KG |
Bruchsal |
|
DE |
|
|
Assignee: |
SEW-EURODRIVE GMBH & CO.
KG
Bruchsal
DE
|
Family ID: |
1000005505400 |
Appl. No.: |
17/059663 |
Filed: |
May 16, 2019 |
PCT Filed: |
May 16, 2019 |
PCT NO: |
PCT/EP2019/025151 |
371 Date: |
November 30, 2020 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
H02K 7/1876 20130101;
H02K 35/02 20130101 |
International
Class: |
H02K 7/18 20060101
H02K007/18; H02K 35/02 20060101 H02K035/02 |
Foreign Application Data
Date |
Code |
Application Number |
May 29, 2018 |
DE |
10 2018 004 276.7 |
Claims
1-15. (canceled)
16. A system, comprising: a first part including a first winding
around a first leg and/or a first center leg of a first coil core;
and a second part including a second winding around a second leg
and/or a second center leg of a second coil core; wherein the first
part and the second part are arranged in parallel with each other
and are movable relative to each other in a movement direction;
wherein the first part includes a first permanent magnet movable in
parallel with the movement direction and a first guide adapted to
guide the first permanent magnet; and wherein the second part
includes a second permanent magnet movable in parallel with the
movement direction and a second guide adapted to guide the second
permanent magnet.
17. The system according to claim 16, wherein the system is
arranged as a generator adapted to generate electrical energy.
18. The system according to claim 16, wherein the first guide
and/or the second guide is arranged as a linear guide.
19. The system according to claim 16, wherein the first permanent
magnet and/or the second permanent magnet is linearly movable in
parallel with the movement direction.
20. The system according to claim 16, wherein the first guide is
adapted to guide the first permanent magnet in the movement
direction and/or to limit the first permanent magnet in front and
back in the movement direction, and/or the second guide is adapted
to guide the second permanent magnet in the movement direction
and/or to limit the second permanent magnet in front and back in
the movement direction.
21. The system according to claim 16, wherein a magnetization
direction of at least one of the permanent magnets is aligned in
parallel with the movement direction inside the guide.
22. The system according to claim 16, wherein at least one of the
permanent magnets has a freedom of movement in the respective guide
such that in a first position a north pole of the permanent magnet
is arranged closer to the leg than a south pole of the permanent
magnet, and in a second position the south pole of the permanent
magnet is arranged closer to the leg than the north pole of the
permanent magnet.
23. The system according to claim 16, wherein a freedom of movement
of at least one of the permanent magnets in the respective guide is
smaller than a length of the permanent magnet in the movement
direction.
24. The system according to claim 16, wherein a magnetic flux
generated by at least one of the permanent magnets is conducted
through the leg of the coil core, a direction of the magnetic flux
in the leg being a function of a position and/or a linear position
of the permanent magnet in the guide.
25. The system according to claim 24, wherein the direction of the
magnetic flux in the leg arising in a first position and/or a first
linear position of the permanent magnet is directed counter to the
direction of the magnetic flux in the leg arising in a second
position and/or a second linear position of the permanent
magnet.
26. The system according to claim 16, wherein in a first position,
at least one of the permanent magnets strikes a first limit stop of
the respective guide, and in a second position, the permanent
magnet strikes a second limit stop of the guide.
27. The system according to claim 16, wherein the second permanent
magnet is arranged as a stationary permanent magnet, and/or the
second part is arranged in mirror symmetry with the first part.
28. The system according to claim 27, wherein a magnetization
direction of the permanent magnet of the second part is aligned in
parallel with a magnetization direction of the first permanent
magnet of the first part.
29. The system according to claim 16, wherein the first part is set
apart from the second part.
30. The system according to claim 16, wherein a magnetization
direction of the second permanent magnet is aligned in parallel
with a movement direction inside the second guide.
31. The system according to claim 16, wherein a magnetic flux
generated by the second permanent magnet is conducted through the
second leg of the second coil core, a direction of the magnetic
flux generated by the second permanent magnet in the second leg is
a function of a position and/or a linear position of the second
permanent magnet in the second guide, the direction of the magnetic
flux in the second leg arising in a first position and/or a first
linear position of the second permanent magnet is directed counter
to the direction of the magnetic flux in the second leg arising in
a second position and/or a second linear position of the second
permanent magnet.
32. The system according to claim 16, wherein at least one of the
permanent magnets has a movement clearance in the respective guide
such that in a first position a north pole of the permanent magnets
is arranged closer to the leg than a south pole of the permanent
magnet, and such that in a second position the south pole of the
permanent magnet is arranged closer to the leg than the north pole
of the permanent magnet.
33. The system according to claim 16, wherein a movement clearance
of one of the permanent magnets in the respective guide is smaller
than a length of the permanent magnet in the movement
direction.
34. The system according to claim 16, wherein in a first position,
the second permanent magnet strikes a first limit stop of the
second guide and in a second position, the second permanent magnet
strikes a second limit stop of the second guide.
35. An installation, comprising: a rail part; a rail vehicle
movably arranged on the rail part; a system as recited in claim 16;
wherein the first part is arranged on the rail vehicle, and the
second part is arranged on the rail part.
36. The installation according to claim 35, wherein the winding of
the first part is adapted to feed a first electronic circuit
including a first sensor and adapted to transmit signals from the
first sensor in a contactless manner to a second electronic circuit
of the second part, and/or the second winding of the second part is
adapted to feed the second electronic circuit including a second
sensor and adapted to transmit signals from the second sensor in a
contactless manner to the first electronic circuit of the first
part.
37. The installation according to claim 35, wherein the rail part
is encompassed by a track switch of the installation.
Description
FIELD OF THE INVENTION
[0001] The present invention relates to a system and an
installation with a rail vehicle movably arranged on a rail
part.
BACKGROUND INFORMATION
[0002] It is generally conventional that a rail vehicle is movable
on a rail part.
[0003] German Patent Document No. 10 2012 203 862 describes an
actuating device for an induction generator.
[0004] German Patent Document No. 101 47 720 describes an
autonomous energy generation system.
SUMMARY
[0005] Example embodiments of the present invention provide for
maintaining safety-relevant functions of a rail system even during
a malfunction of the electrical supply.
[0006] According to an example embodiment of the present invention,
a system includes a first part and a second part. The first part
and the second part are arranged in parallel with each other and
are movable relative to each other in a movement direction. The
first part has a winding around a leg of a coil core, e.g., a
center leg, and the first part has a guide, e.g., a linear guide,
and a permanent magnet, which is arranged so as to be movable in
parallel with the movement direction. The permanent magnet is
guided by the guide, e.g., in the movement direction, and is
limited, especially in the front and back in the movement
direction.
[0007] This has the advantage that the electrical energy is
independent of the magnitude of the speed of the two parts relative
to each other. In other words, the biasing is able to be obtained
in a slow or rapid manner. However, regardless of the time used for
the biasing, the generated energy pulse is substantially the same.
Also, the energy of the respective pulse is independent of the
relative movement direction with respect to each other. In
addition, the same energy pulse is available even when travel in
the same direction takes place multiple times. The system described
herein works without wear and in a contactless manner. The energy
coil is generated on both sides in a synchronous manner.
[0008] According to example embodiments, the magnetization
direction of the permanent magnet is aligned in parallel with its
movement direction inside the guide. This offers the advantage that
the permanent magnet of the first part is repelled at a magnetic
field generated by the second part, e.g., by a permanent magnet of
the second part. The permanent magnet of the first part thus moves
within the movement clearance provided by the guide up to the
limits such that a magnetic bias voltage is initially generated,
which instantaneously decays after an unstable position has been
crossed, the greatest possible change in the magnetic flux flowing
through the winding of the first part being induced during the
decaying process. This is achieved in that the movement clearance
of the permanent magnet is such that in one position the north pole
is situated closer to the leg than the south pole, and in another
position the south pole is situated closer to the leg than the
north pole.
[0009] According to example embodiments, the movement clearance of
the permanent magnet in the guide is such that in a first position
the north pole of the permanent magnet is situated closer to the
leg than the south pole of the permanent magnet, and that in a
second position the south pole of the permanent magnet is situated
closer to the leg than the north pole of the permanent magnet. This
offers the advantage that the movement clearance allows for a
reversal of the magnetic flux.
[0010] According to example embodiments, the freedom of movement of
the permanent magnet in the guide is smaller than the length of the
permanent magnet in the movement direction. This offers the
advantage that a bias voltage is generated in the magnetic field
when the permanent magnet strikes the respective limit stop. The
mechanically performed work thus is stored in the magnetic flux
density and converted into electric energy only during the
relaxing.
[0011] According to example embodiments, a magnetic flux generated
by the permanent magnet is conducted through the leg of the coil
core, and the direction of the magnetic flux in the leg is a
function of the position, e.g., the linear position, of the
permanent magnet in the guide. For example, the direction of the
magnetic flux arising in the leg in a first position, especially a
linear position, of the permanent magnet is directed counter to the
direction of the magnetic flux in the leg arising in a second
position, especially a linear position, of the permanent magnet.
This has the advantage that the change in position triggers the
change in the magnetic flux and a high voltage is triggered as a
result.
[0012] According to example embodiments, the permanent magnet
strikes a first limit stop of the guide at the first position, and
at the second position the permanent magnet strikes the other limit
stop of the guide. This offers the advantage that a bias voltage is
able to be built up further when the contact is made with a limit
stop.
[0013] According to example embodiments, the second part has a
second permanent magnet, e.g., one situated in a stationary manner,
or the second part is provided in mirror symmetry with the first
part, and the magnetization direction of the permanent magnet of
the second part is aligned in parallel, e.g., rectified in
parallel, with respect to the magnetization direction of the
permanent magnet of the first part. This offers the advantage that
if a stationary permanent magnet is provided, that is to say, e.g.,
a permanent magnet fixedly disposed on a rail part, the second part
is readily configured.
[0014] According to example embodiments, the first part is set
apart from the second part. This is considered advantageous insofar
as an air gap exists between the two permanent magnets so that the
biasing is able to be performed in a contactless manner.
[0015] According to example embodiments, the second part has a
second winding around a second leg of a second coil core, e.g., the
center leg, the second part has a second guide, especially a linear
guide, and the second permanent magnet is movably situated in
parallel with the movement direction, e.g., in particular movable
in a linear fashion, the second permanent magnet being guided by
the second guide, e.g., in the movement direction, and limited,
e.g., in the front and back in the movement direction. This offers
the advantage that a synchronous pulse triggering is able to take
place on both sides, which means that a respective electronic
circuit is able to be supplied on both sides.
[0016] According to example embodiments, the magnetization
direction of the second permanent magnet is aligned in parallel
with its movement direction inside the second guide. This has the
advantage that the permanent magnet of the second part is repelled
at a magnetic field generated by the first part, e.g., by a
permanent magnet of the first part. The permanent magnet of the
second part thus moves within the movement clearance provided by
the guide up to the limit stops such that a magnetic bias is first
built up which instantly decays once an unstable position has been
crossed, the greatest possible change in the magnetic flux that
flows through the winding of the second part being induced during
the decay process. This is achieved in that the freedom of movement
of the second permanent magnet has a magnitude such that in one
position the north pole is situated closer to the leg of the coil
core of the second part than the south pole, and that in another
position the south pole is situated closer to the leg than the
north pole.
[0017] According to example embodiments, a magnetic flux generated
by the second permanent magnet is conducted through the leg of the
second coil core, the direction of the magnetic flux generated by
the second permanent magnet in the second leg is a function of the
position, e.g., the linear position, of the second permanent magnet
in the second guide, and e.g., the direction of the magnetic flux
arising in the second leg in a first position, e.g., a linear
position, of the second permanent magnet is directed counter to the
direction of the magnetic flux in the second leg arising in a
second position, e.g., a linear position, of the second permanent
magnet. This has the advantage that the freedom of movement of the
second permanent magnet allows for a reversal of the magnetic flux
in the leg of the coil core of the second part.
[0018] According to example embodiments, the second permanent
magnet has a freedom of movement in the second guide such that in a
first position, the north pole of the second permanent magnet is
situated closer to the leg than the south pole of the second
permanent magnet, and in a second position, the south pole the
second permanent magnet is situated closer to the leg than the
north pole of the second permanent magnet. This has the advantage
that the freedom of movement allows for a reversal of the magnetic
flux.
[0019] According to example embodiments, the freedom of movement of
the second permanent magnet in the guide is smaller than the length
of the second permanent magnet in the movement direction. This
offers the advantage that a magnetic bias is built up in the
magnetic field when the second permanent magnet strikes the
respective limit stop. The mechanically performed work thus is
stored in the magnetic flux density and converted into electrical
energy only during the relaxing.
[0020] According to example embodiments, in the first position, the
second permanent magnet strikes a first limit stop of the second
guide, and in the second position, the second permanent magnet
strikes the other limit stop of the second guide. This has the
advantage that the magnetic bias is able to be increased after the
contact has occurred.
[0021] According to an example embodiment of the present invention,
in an installation having a rail vehicle movably arranged on a rail
part, the first part is arranged on the rail vehicle and the second
part is arranged on the rail part.
[0022] This offers the advantage that safety functions are able to
be provided even during a malfunction of the electrical energy
supply.
[0023] According to example embodiments, the winding of the first
part feeds an electronic circuit, which, e.g., has a sensor and
transmits signals from the sensor in a contactless manner, e.g., to
an electronic circuit of the second part. This offers the advantage
that safety functions are able to be maintained even if the
electrical power supply should fail.
[0024] According to example embodiments, the winding of the second
part feeds a second electronic circuit, which, e.g., has a second
sensor and transmits signals from the second sensor in a
contactless manner, e.g., to the first electronic circuit of the
first part. This offers the advantage that safety functions are
able to be maintained even if the electrical power supply should
fail.
[0025] According to example embodiments, the rail part is
encompassed by a track switch of the installation. This is
considered advantageous insofar as the safety or switching function
of the track switch is able to be maintained.
[0026] Further features and aspects of example embodiments of the
present invention are described in greater detail below with
reference to the appended Figures.
BRIEF DESCRIPTION OF THE DRAWINGS
[0027] FIG. 1 is a schematic longitudinal cross-sectional view
through a system according to an example embodiment of the present
invention for the generation of electrical energy, e.g., a
generator.
[0028] FIGS. 2 through 5 schematically illustrate the sequence of a
pulse triggering during a movement of the two parts of the system
relative to each other in a first direction.
[0029] FIG. 6 and FIG. 7 schematically illustrate two different
starting positions, which are provided prior to the sequence
illustrated in FIG. 2 through FIG. 5.
[0030] FIGS. 8 through 11 schematically illustrate the sequence of
a pulse triggering during a movement of the two parts of the system
relative to one another in a first direction.
[0031] FIG. 12 and FIG. 13 schematically illustrate two different
starting positions, which are provided prior to the sequence
illustrated in FIG. 8 through FIG. 11.
DETAILED DESCRIPTION
[0032] As illustrated in the Figures, the system, e.g., a
generator, has two parts which are linearly movable relative to
each other.
[0033] Energy is therefore able to be generated by both parts when
they are moving in parallel with each other in a linear fashion in
each case. When these parts move past each other, permanent magnets
are biased, and voltages are induced in respective windings 6
during the sudden relaxation by which an electronic circuit and/or
a sensor is/are able to be supplied and evaluated.
[0034] For example, a rail vehicle, e.g., a suspended monorail, is
equipped with the generator described herein. The first part of the
generator is situated on the rail vehicle, and the second part is
situated on a rail part of the rail train, especially directly or
indirectly. In other words, the second part is stationary and the
first part is able to move along with the rail vehicle.
[0035] The first part and the second part have the same
configuration. In the event of a malfunction of the electrical
supply of the rail train, an electrical supply is therefore
available on the rail vehicle and also in a stationary scenario
when the rail vehicle is manually moved or moved using some other
energy source.
[0036] This is because the movement generates a magnetic bias of
the permanent magnets of the two parts relative to each other,
which suddenly relaxes during the further shifting movement.
[0037] As a result, a data transmission between the rail vehicle
and a stationary electronic circuit is possible even in a failure
of the energy supply. This is considered particularly advantageous
when crossing a track switch so that it is able to be operated even
in a currentless state.
[0038] Each one of the parts has a permanent magnet 1, which is
linearly guided in a guide 2 in parallel, especially relative to
the rail direction of the rail part. Guide 2 is also arranged as a
limit stop in both directions, i.e., in the movement direction,
especially in the rail direction, and counter to the movement
direction, especially the rail direction.
[0039] As illustrated in FIG. 1, the magnetization direction of
permanent magnet 1 of the first part is aligned counter to relative
movement direction 4.
[0040] A coil core 7 arranged as an E-core carries a winding 6
around its center leg.
[0041] As illustrated in FIG. 1, the magnetic flux generated by the
north pole of permanent magnet 1 flows into the center leg of coil
core 7, via the yoke of the E-core to the outer leg of the E-core
situated in front in the movement direction, and from there back to
the south pole of permanent magnet 1.
[0042] The mirror-symmetrically configured second part is moved to
the right in relation to the first part. As a result, both south
poles repel each other and the permanent magnet of the second part
travels all the way to the right inside the guide of the second
part up to the limit stop on its guide so that the south pole of
the permanent magnet of the second part is as far away as possible
from the south pole of permanent magnet 1 of the first part and as
close as possible to the north pole of permanent magnet 1 of the
first part.
[0043] Permanent magnet 1 of the first part is correspondingly
pushed to the left limit stop of guide 2, i.e., in the front in
movement direction 4.
[0044] FIGS. 2 through 5 illustrate the biasing and subsequent
relaxating of the permanent magnets of the two parts as a sequence
of consecutive states. As illustrated, the magnetic flux in the
center leg is reversed during the passing movement of FIG. 2 to
FIG. 3. In the same manner, the magnetic flux is reversed during
the passing movement from FIG. 4 to FIG. 5.
[0045] When the magnetic flux is reversed, a sudden pronounced
change in the magnetic flux thus occurs, thereby inducing a voltage
in winding 6 that supplies a respective electronic circuit.
[0046] The reversal takes place simultaneously in both parts.
[0047] As illustrated in FIG. 3, the two parts are moved past each
other along a common linear axis. The permanent magnets align
within their respective degrees of freedom. Permanent magnet 1 of
the first part is consequently pushed to the right against the
limit stop and the permanent magnet of the second part is pushed to
the left against its limit stop. The permanent magnets are then
resting against their respective stops. Depending on the speed of
the movement from the state illustrated in FIG. 2 to the state
illustrated in FIG. 3, a voltage is induced in winding 6.
[0048] The further movement builds up a magnetic bias until the
state illustrated in FIG. 4 has been reached. During this buildup
of a magnetic bias, mechanical work, which is stored in the bias of
the magnetic field, is performed while the parts move past each
other.
[0049] Once the unstable position has been crossed by the maximum
magnetic bias illustrated in FIG. 4, the state illustrated in FIG.
5 is suddenly reached, the permanent magnets repelling each other
and making contact with the limit stops situated at opposite ends
in each case. At the same time, the direction of the magnetic flux
in the center leg reverses direction so that a voltage with a high
peak value due to the sudden rapid reversal of the magnetic field
is induced in winding 6. The voltage pulse provided in this manner
supplies the respective electronic circuit.
[0050] Other starting positions are illustrated in FIG. 6 and FIG.
7.
[0051] FIGS. 8 through 12 illustrate the states corresponding to
FIGS. 2 through 7 in an opposite movement direction of the parts
relative to each other.
[0052] The guide is arranged as a linear axis, for example.
[0053] As illustrated in the Figures, the second part is firmly
connected to the rail part by its housing 9, and the first part is
moved relative to the second part. As an alternative, the second
part is also situated in a manner that allows it to move.
[0054] In further exemplary embodiments, the second part is
replaced by a permanent magnet fixedly situated on the rail part.
The described mode of action for the first part remains
unchanged.
LIST OF REFERENCE NUMERALS
[0055] 1 permanent magnet of the first part
[0056] 2 guide
[0057] 3 magnetic flux
[0058] 4 4 relative movement direction
[0059] 5 housing
[0060] 6 winding
[0061] 7 coil core
[0062] 8 magnetic force acting on the permanent magnet
[0063] 9 second housing
* * * * *