CN113497505B - Zero magnetic flux coil with flexible connection - Google Patents
Zero magnetic flux coil with flexible connection Download PDFInfo
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- CN113497505B CN113497505B CN202010265546.5A CN202010265546A CN113497505B CN 113497505 B CN113497505 B CN 113497505B CN 202010265546 A CN202010265546 A CN 202010265546A CN 113497505 B CN113497505 B CN 113497505B
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B60—VEHICLES IN GENERAL
- B60L—PROPULSION OF ELECTRICALLY-PROPELLED VEHICLES; SUPPLYING ELECTRIC POWER FOR AUXILIARY EQUIPMENT OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRODYNAMIC BRAKE SYSTEMS FOR VEHICLES IN GENERAL; MAGNETIC SUSPENSION OR LEVITATION FOR VEHICLES; MONITORING OPERATING VARIABLES OF ELECTRICALLY-PROPELLED VEHICLES; ELECTRIC SAFETY DEVICES FOR ELECTRICALLY-PROPELLED VEHICLES
- B60L13/00—Electric propulsion for monorail vehicles, suspension vehicles or rack railways; Magnetic suspension or levitation for vehicles
- B60L13/04—Magnetic suspension or levitation for vehicles
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02K—DYNAMO-ELECTRIC MACHINES
- H02K3/00—Details of windings
- H02K3/04—Windings characterised by the conductor shape, form or construction, e.g. with bar conductors
- H02K3/28—Layout of windings or of connections between windings
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- H—ELECTRICITY
- H02—GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
- H02N—ELECTRIC MACHINES NOT OTHERWISE PROVIDED FOR
- H02N15/00—Holding or levitation devices using magnetic attraction or repulsion, not otherwise provided for
Abstract
The invention provides a zero magnetic flux coil with soft connection, which comprises an upper loop coil, a lower loop coil, a first upper and lower loop transition section and a second upper and lower loop transition section, wherein the upper loop coil comprises an upper loop left side section, an upper loop right side section, a first soft connection structure and a second soft connection structure; the lower loop coil comprises a lower loop left side section, a lower loop right side section, a third soft connection structure and a fourth soft connection structure, and the lower loop left side section is connected with the lower loop right side section through the third soft connection structure and the fourth soft connection structure; the upper loop coil and the lower loop coil are connected through the first upper and lower loop transition section and the second upper and lower loop transition section. The invention can solve the problems of installation and design of the zero-flux coil at the junction of the track beam.
Description
Technical Field
The invention relates to the technical field of magnetic suspension, in particular to a zero-magnetic-flux coil with flexible connection.
Background
The zero magnetic flux coils arranged on the tracks at two sides of the magnetic suspension train and the superconducting magnet arranged on the magnetic suspension train interact with each other to provide suspension force and propelling force for the magnetic suspension train, and the zero magnetic flux coils are important components of a magnetic suspension track traffic system.
Zero-flux coils, because of their particular use, operate under electrical, mechanical, and environmental loads for extended periods of time, and therefore must be designed and manufactured in consideration of their operating and environmental conditions.
Due to the limitations of manufacturing conditions, the rail beam to which the zero-flux coil is mounted is usually formed by splicing a plurality of segmented rail beams. If the zero-flux coil is installed only, the length of each section of track beam can be designed to be integral multiple of the length of the zero-flux coil along the traveling direction of the train, but besides the zero-flux coil, a plurality of subsystems are installed on the track beam. Thus, in the case of multiple subsystem considerations, a zero flux coil may be installed at the intersection of two sections of track beam. The track beams are usually made of concrete, and a certain mounting gap is reserved at the joint of the two sections of track beams when the track beams are mounted so as to ensure that the track beams cannot be mutually extruded when being heated and expanded.
Therefore, under the influence of alternating cold and heat in the natural environment, the rail beam junction is equivalent to a movable joint, which is a great challenge for the zero-flux coil installed at the rail beam junction.
Disclosure of Invention
The invention provides a zero-flux coil with flexible connection, which can solve the problems of installation and design of the zero-flux coil at the junction of a track beam.
The invention provides a zero-magnetic-flux coil with flexible connection, which comprises an upper loop coil, a lower loop coil, a first upper and lower loop transition section and a second upper and lower loop transition section, wherein,
the upper loop coil comprises an upper loop left side section, an upper loop right side section, a first soft connection structure and a second soft connection structure, wherein the upper loop left side section is connected with the upper loop right side section through the first soft connection structure and the second soft connection structure;
the lower loop coil comprises a lower loop left side section, a lower loop right side section, a third soft connection structure and a fourth soft connection structure, and the lower loop left side section is connected with the lower loop right side section through the third soft connection structure and the fourth soft connection structure;
the upper loop coil and the lower loop coil are connected through the first upper and lower loop transition section and the second upper and lower loop transition section.
Preferably, the zero-flux coil further includes a support member, the support member is disposed on one side of the upper loop coil and the lower loop coil, where the upper loop coil and the lower loop coil have soft connection structures, and the support member is provided with a first groove for supporting the first soft connection structure, a second groove for supporting the second soft connection structure, a third groove for supporting the third soft connection structure, and a fourth groove for supporting the fourth soft connection structure.
Preferably, the support member is plate-shaped.
Preferably, the material of the support member is a non-magnetic and non-conductive material.
Preferably, the first flexible connection structure is arranged between the top end of the upper loop left side section and the top end of the upper loop right side section, the second flexible connection structure is arranged between the bottom end of the upper loop left side section and the bottom end of the upper loop right side section, the third flexible connection structure is arranged between the top end of the lower loop left side section and the top end of the lower loop right side section, and the fourth flexible connection structure is arranged between the bottom end of the lower loop left side section and the bottom end of the lower loop right side section.
Preferably, the first flexible connection structure, the second flexible connection structure, the third flexible connection structure and the fourth flexible connection structure are all made of flexible conductive materials.
Preferably, the flexible conductive material is copper.
Preferably, the first flexible connection structure respectively with the top of last return circuit left side section with the top fixed connection of last return circuit right side section through the welding mode, the second flexible connection structure respectively with the bottom of last return circuit left side section with the bottom fixed connection of last return circuit right side section through the welding mode, the third flexible connection structure respectively with the top of lower return circuit left side section with the top fixed connection of lower return circuit right side section through the welding mode, the fourth flexible connection structure respectively with the bottom of lower return circuit left side section with the bottom fixed connection of lower return circuit right side section through the welding mode.
Preferably, the first upper and lower loop transition section is disposed between the bottom end of the upper loop left side section and the top end of the lower loop right side section, and the second upper and lower loop transition section is disposed between the bottom end of the upper loop right side section and the top end of the lower loop left side section.
By applying the technical scheme of the invention, four transverse edges in the upper and lower loops of the zero-magnetic-flux coil are disconnected and connected through the soft connection structure. Within the range allowed by the length of the flexible connection structure, no matter the left section and the right section of the junction of the track beam are far away from each other or close to each other, the zero-magnetic-flux coil can realize the functions which can be realized by a common zero-magnetic-flux coil due to the characteristic that the flexible connection structure can be bent or straightened, so that the problems of installation and design of the zero-magnetic-flux coil at the junction of the track beam are solved.
Drawings
The accompanying drawings, which are included to provide a further understanding of the embodiments of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the principles of the invention. It is obvious that the drawings in the following description are only some embodiments of the invention, and that for a person skilled in the art, other drawings can be derived from them without inventive effort.
FIG. 1 illustrates a three-dimensional view of a zero-flux coil with a soft-connect according to one embodiment of the invention;
FIG. 2 shows a rear view of the zero flux coil with soft connection shown in FIG. 1;
FIG. 3 shows a left side view of the zero flux coil with soft connection shown in FIG. 1;
FIG. 4 shows a top view of the zero flux coil with soft connections shown in FIG. 1;
FIG. 5 shows a three-dimensional view of a zero-flux coil with a soft-connect according to another embodiment of the invention;
fig. 6 shows the support member of fig. 5 with a soft-connected zero-flux coil.
Description of the reference numerals
1. An upper loop left side section; 2. An upper loop right side section; 3. A lower loop left side section;
4. a lower loop right side segment; 5. A first flexible connection structure; 6. A second flexible connection structure;
7. a third flexible connection structure; 8. A fourth flexible connection structure; 9. A first upper and lower loop transition section;
10. a second upper and lower loop transition section; 11. A support member; 12. A first groove;
13. a second groove; 14. A third groove; 15. And a fourth groove.
Detailed Description
It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. The following description of at least one exemplary embodiment is merely illustrative in nature and is in no way intended to limit the invention, its application, or uses. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present application. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
The relative arrangement of the components and steps, the numerical expressions and numerical values set forth in these embodiments do not limit the scope of the present invention unless specifically stated otherwise. Meanwhile, it should be understood that the sizes of the respective portions shown in the drawings are not drawn in an actual proportional relationship for the convenience of description. Techniques, methods, and apparatus known to those of ordinary skill in the relevant art may not be discussed in detail but are intended to be part of the specification where appropriate. In all examples shown and discussed herein, any particular value should be construed as merely illustrative, and not limiting. Thus, other examples of the exemplary embodiments may have different values. It should be noted that: like reference numbers and letters refer to like items in the following figures, and thus, once an item is defined in one figure, further discussion thereof is not required in subsequent figures.
As shown in fig. 1 to 4, the present invention provides a zero-flux coil with soft connection, which includes an upper loop coil, a lower loop coil, a first upper and lower loop transition 9, and a second upper and lower loop transition 10, wherein,
the upper loop coil comprises an upper loop left side section 1, an upper loop right side section 2, a first soft connection structure 5 and a second soft connection structure 6, wherein the upper loop left side section 1 and the upper loop right side section 2 are connected through the first soft connection structure 5 and the second soft connection structure 6;
the lower loop coil comprises a lower loop left side section 3, a lower loop right side section 4, a third soft connection structure 7 and a fourth soft connection structure 8, and the lower loop left side section 3 and the lower loop right side section 4 are connected through the third soft connection structure 7 and the fourth soft connection structure 8;
the upper loop coil and the lower loop coil are connected by the first upper and lower loop transition section 9 and the second upper and lower loop transition section 10.
The invention disconnects four transverse edges in the upper and lower loops of the zero-magnetic-flux coil and connects the four transverse edges through a flexible connection structure. Within the range allowed by the length of the flexible connection structure, no matter the left section and the right section of the junction of the track beam are far away from each other or close to each other, the zero-magnetic-flux coil can realize the functions which can be realized by a common zero-magnetic-flux coil due to the characteristic that the flexible connection structure can be bent or straightened, so that the problems of installation and design of the zero-magnetic-flux coil at the junction of the track beam are solved.
According to an embodiment of the present invention, the first flexible connection structure 5 is disposed between the top end of the upper loop left section 1 and the top end of the upper loop right section 2, the second flexible connection structure 6 is disposed between the bottom end of the upper loop left section 1 and the bottom end of the upper loop right section 2, the third flexible connection structure 7 is disposed between the top end of the lower loop left section 3 and the top end of the lower loop right section 4, and the fourth flexible connection structure 8 is disposed between the bottom end of the lower loop left section 3 and the bottom end of the lower loop right section 4.
The first soft connection structure 5, the second soft connection structure 6, the third soft connection structure 7 and the fourth soft connection structure 8 are made of flexible conductive materials, so that the soft connection structures have the characteristic of being capable of being bent and straightened, the soft connection structures can move in the advancing direction of the train, and have the same effect as the transverse edge of the existing common zero-magnetic-flux coil, namely, the soft connection structures provide the suspension force in the gravity direction of the train for the magnetic suspension train. The flexible conductive material may be copper, for example, copper wires may be used for the first flexible connection structure 5, the second flexible connection structure 6, the third flexible connection structure 7, and the fourth flexible connection structure 8. First flexible connection structure 5 through the welding mode respectively with go up the top of return circuit left side section 1 with go up the top fixed connection of return circuit right side section 2, second flexible connection structure 6 through the welding mode respectively with go up the bottom of return circuit left side section 1 with go up the bottom fixed connection of return circuit right side section 2, third flexible connection structure 7 through the welding mode respectively with the top of return circuit left side section 3 down with the top fixed connection of return circuit right side section 4 down, fourth flexible connection structure 8 through the welding mode respectively with the bottom of return circuit left side section 3 down with the bottom fixed connection of return circuit right side section 4 down.
According to an embodiment of the present invention, the first upper and lower loop transition section 9 is disposed between the bottom end of the upper loop left section 1 and the top end of the lower loop right section 4, and the second upper and lower loop transition section 10 is disposed between the bottom end of the upper loop right section 2 and the top end of the lower loop left section 3.
As shown in fig. 5 and 6, the zero-flux coil further includes a supporting member 11, where the supporting member 11 is disposed on one side of the upper loop coil and the lower loop coil having the soft connection structure, and is used for supporting the four soft connection structures, so as to improve the strength of the soft connection structures, and enable the four soft connection structures to bear the reaction force from the magnetic levitation train superconducting magnet. The supporting component 11 is provided with a first groove 12 for supporting the first soft connection structure 5, a second groove 13 for supporting the second soft connection structure 6, a third groove 14 for supporting the third soft connection structure 7 and a fourth groove 15 for supporting the fourth soft connection structure 8, so that the supporting effect of the supporting component on the soft connection structures is improved.
Wherein the support member 11 is plate-shaped to facilitate mounting of the support member at a rail beam interface. The material of the support member 11 is a non-magnetic and non-conductive material.
In the specific application of the invention, the upper loop left section 1 and the lower loop left section 3 of the zero-flux coil are installed at the end part of the left track beam, the upper loop right section 2 and the lower loop right section 4 of the zero-flux coil are installed at the end part of the right track beam, the support member 11 is arranged at the interface of the track beams and is fixedly connected with one track beam, and the support member 11 is positioned between the upper loop coil and the track beam, and the lower loop coil and the track beam.
The zero magnetic flux coil is used as a closed loop, when the superconducting magnet positioned on two sides of the suspension train passes through the zero magnetic flux coil, the zero magnetic flux coil can also generate a magnetic field under the action of the magnetic field generated by the superconducting magnet, and the magnetic field generated by the zero magnetic flux coil and the magnetic field generated by the superconducting magnet interact with each other to generate forces in three directions on the superconducting magnet, wherein the forces are respectively as follows: the magnetic resistance force along the running direction of the train, the suspension force along the gravity direction of the train and the guiding force perpendicular to the direction of the superconducting magnet. The suspension force is a force for stably suspending the train, the guide force is a force for preventing the train from deviating, the magnetic resistance is small, and the influence on the train is not great.
When the left and right track beams are subjected to weather influences or vibration, so that the gap between the left and right track beams is reduced, the left and right sections of the upper and lower loop coils approach each other, and the flexible connection structure bends, but always stays in the groove of the support member 11. When the left and right track beams are influenced by weather or vibrated to increase the gap between the left and right track beams, the left and right sections of the upper and lower loop coils are also away from each other, and at this time, the flexible connection structure is gradually straightened from the original bending state, but is always in the groove of the support member 11.
Therefore, in the allowable range of the length of the flexible connection structure, no matter whether the gap between the left track beam and the right track beam is reduced or increased, due to the characteristic that the flexible connection structure can be bent and straightened in the support part 11, the zero-magnetic-flux coil with the flexible connection structure can realize the functions which can be realized by a common zero-magnetic-flux coil.
In the description of the present invention, it is to be understood that the orientation or positional relationship indicated by the orientation words such as "front, rear, upper, lower, left, right", "lateral, vertical, horizontal" and "top, bottom", etc. are usually based on the orientation or positional relationship shown in the drawings, and are only for convenience of description and simplicity of description, and in the case of not making a reverse description, these orientation words do not indicate and imply that the device or element being referred to must have a specific orientation or be constructed and operated in a specific orientation, and therefore, should not be considered as limiting the scope of the present invention; the terms "inner and outer" refer to the inner and outer relative to the profile of the respective component itself.
Spatially relative terms, such as "above … …," "above … …," "above … … surface," "above," and the like, may be used herein for ease of description to describe one device or feature's spatial relationship to another device or feature as illustrated in the figures. It will be understood that the spatially relative terms are intended to encompass different orientations of the device in use or operation in addition to the orientation depicted in the figures. For example, if a device in the figures is turned over, devices described as "above" or "on" other devices or configurations would then be oriented "below" or "under" the other devices or configurations. Thus, the exemplary term "above … …" can include both an orientation of "above … …" and "below … …". The device may be otherwise variously oriented (rotated 90 degrees or at other orientations) and the spatially relative descriptors used herein interpreted accordingly.
It should be noted that the terms "first", "second", and the like are used to define the components, and are only used for convenience of distinguishing the corresponding components, and the terms have no special meanings unless otherwise stated, and therefore, the scope of the present invention should not be construed as being limited.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (9)
1. A zero-flux coil with a soft connection, characterized in that the zero-flux coil comprises an upper loop coil, a lower loop coil, a first upper and lower loop transition (9) and a second upper and lower loop transition (10), wherein,
the upper loop coil comprises an upper loop left side section (1), an upper loop right side section (2), a first soft connection structure (5) and a second soft connection structure (6), wherein the upper loop left side section (1) is connected with the upper loop right side section (2) through the first soft connection structure (5) and the second soft connection structure (6);
the lower loop coil comprises a lower loop left side section (3), a lower loop right side section (4), a third soft connection structure (7) and a fourth soft connection structure (8), wherein the lower loop left side section (3) is connected with the lower loop right side section (4) through the third soft connection structure (7) and the fourth soft connection structure (8);
the upper loop coil and the lower loop coil are connected through the first upper and lower loop transition section (9) and the second upper and lower loop transition section (10).
2. A zero-flux coil with soft connection according to claim 1, further comprising a support member (11), wherein the support member (11) is disposed on one side of the upper loop coil and the lower loop coil having soft connection structure, and a first groove (12) for supporting the first soft connection structure (5), a second groove (13) for supporting the second soft connection structure (6), a third groove (14) for supporting the third soft connection structure (7), and a fourth groove (15) for supporting the fourth soft connection structure (8) are disposed on the support member (11).
3. A zero-flux coil with soft connection according to claim 2, characterized in that the support member (11) is plate-shaped.
4. A zero-flux coil with a soft connection according to claim 3, characterized in that the material of the support member (11) is a non-magnetic and non-conductive material.
5. A zero-flux coil with a soft connection according to any one of claims 1-4, characterized in that the first soft connection structure (5) is arranged between the top end of the upper loop left section (1) and the top end of the upper loop right section (2), the second soft connection structure (6) is arranged between the bottom end of the upper loop left section (1) and the bottom end of the upper loop right section (2), the third soft connection structure (7) is arranged between the top end of the lower loop left section (3) and the top end of the lower loop right section (4), and the fourth soft connection structure (8) is arranged between the bottom end of the lower loop left section (3) and the bottom end of the lower loop right section (4).
6. A zero-flux coil with soft connections according to claim 5, characterized in that the materials of the first soft connection structure (5), the second soft connection structure (6), the third soft connection structure (7) and the fourth soft connection structure (8) are all flexible conductive materials.
7. The zero-flux coil with flexible connections of claim 6, wherein the flexible conductive material is copper.
8. The zero-flux coil with the flexible connection function according to claim 6, wherein the first flexible connection structure (5) is fixedly connected with the top end of the upper loop left section (1) and the top end of the upper loop right section (2) respectively in a welding manner, the second flexible connection structure (6) is fixedly connected with the bottom end of the upper loop left section (1) and the bottom end of the upper loop right section (2) respectively in a welding manner, the third flexible connection structure (7) is fixedly connected with the top end of the lower loop left section (3) and the top end of the lower loop right section (4) respectively in a welding manner, and the fourth flexible connection structure (8) is fixedly connected with the bottom end of the lower loop left section (3) and the bottom end of the lower loop right section (4) respectively in a welding manner.
9. A zero flux coil with a soft connection according to any of claims 1-4, characterized in that the first upper and lower loop transition (9) is arranged between the bottom end of the upper loop left section (1) and the top end of the lower loop right section (4), and the second upper and lower loop transition (10) is arranged between the bottom end of the upper loop right section (2) and the top end of the lower loop left section (3).
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| CN202010265546.5A CN113497505B (en) | 2020-04-07 | 2020-04-07 | Zero magnetic flux coil with flexible connection |
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| CN202010265546.5A CN113497505B (en) | 2020-04-07 | 2020-04-07 | Zero magnetic flux coil with flexible connection |
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| CN113497505B true CN113497505B (en) | 2022-07-08 |
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