阅读说明：本技术 底部悬浮导向系统 (Bottom suspension guide system ) 是由 胡道宇 毛凯 张艳清 翟茂春 陈慧星 夏委 冯馨月 刘坤 龚珺 邹玲 吕民东 于 2019-10-10 设计创作，主要内容包括：本发明涉及磁悬浮技术领域,公开了一种底部悬浮导向系统。其中,该系统包括真空管道、车体、超导磁体、线圈、冷却装置和轨道,所述车体和所述轨道均置于所述真空管道内,在所述车体内的底部表面上对称设置所述超导磁体,在所述轨道的底部对应所述超导磁体设置所述线圈,所述线圈为非对称8字线圈,所述超导磁体与所述线圈相互作用为所述车体提供导向力和悬浮力,所述冷却装置设置在所述轨道的底部用于对所述线圈进行降温。由此,仅在轨道底部设置冷却装置就可以解决线圈的散热问题,简化了制冷结构。并且,轨道底部设置的线圈采用非对称8字线圈,可以增大系统浮导比,为车体提供充足的悬浮力,保证车辆的安全稳定运行。(The invention relates to the technical field of magnetic suspension and discloses a bottom suspension guide system. The system comprises a vacuum pipeline, a vehicle body, a superconducting magnet, a coil, a cooling device and a track, wherein the vehicle body and the track are arranged in the vacuum pipeline, the superconducting magnet is symmetrically arranged on the surface of the bottom in the vehicle body, the coil is arranged at the bottom of the track corresponding to the superconducting magnet, the coil is an asymmetric 8-shaped coil, the superconducting magnet and the coil interact to provide guiding force and suspension force for the vehicle body, and the cooling device is arranged at the bottom of the track and used for cooling the coil. Therefore, the cooling device is arranged at the bottom of the track, so that the heat dissipation problem of the coil can be solved, and the refrigeration structure is simplified. And the coil that the track bottom set up adopts asymmetric 8 word coils, can increase the system and float the conductance ratio, for the automobile body provides sufficient suspension power, guarantees the safe and stable operation of vehicle.)

1. The bottom suspension guiding system is characterized by comprising a vacuum pipeline (1), a vehicle body (2), a superconducting magnet (3), coils (4), a cooling device (5) and a track (6), wherein the vehicle body (2) and the track (6) are both arranged in the vacuum pipeline (1), the superconducting magnet (3) is symmetrically arranged on the bottom surface in the vehicle body (2), the coils (4) are arranged at the bottom of the track (6) corresponding to the superconducting magnet (3), the coils (4) are asymmetric 8-shaped coils, the superconducting magnet (3) and the coils (4) interact to provide guiding force and suspension force for the vehicle body (2), and the cooling device (5) is arranged at the bottom of the track (6) and used for cooling the coils (4).

2. The system according to claim 1, wherein the track (6) comprises a planar track switch comprising a forward track laying on the ground and a lateral track laying on the ground, the lateral track extending out from an opening at one side of the forward track.

3. The system according to claim 2, characterized in that the coils (4) comprise a forward track coil arranged at the bottom of the forward track and a lateral track coil arranged at the bottom of the lateral track.

4. A system according to any of claims 1-3, characterized in that the superconducting magnet (3) is any of the following: superconducting coils, superconducting blocks, permanent magnets, Halbach permanent magnet arrays and electromagnets.

5. The system of any one of claims 1-3, wherein the asymmetric 8-word coil is an aluminum or copper wound asymmetric zero flux coil.

Technical Field

The invention relates to the technical field of magnetic suspension, in particular to a bottom suspension guide system.

Background

The speed is the target of constant pursuit of human beings, the distance between cities and even between countries is shortened, and information communication and talent movement are greatly promoted. With the desire of human beings for high speed, the magnetic levitation technology is produced. The magnetic suspension technology mainly comprises electromagnetic suspension, electric suspension and superconducting pinning suspension. The electric suspension is a passive self-stabilizing suspension system, does not need additional suspension guide control, and is very suitable for the application fields of high speed and ultrahigh speed, such as Japanese sorbwire superconducting electric suspension trains (> 600km/h) and United states Holloman rocket sleds (> 1000km/h) and the like.

The Japanese electric levitation vehicle mainly utilizes interaction force between the vehicle-mounted superconducting magnet and the ground 8-shaped coil to realize vehicle body levitation and guiding force required by vehicle body transverse stability, and the levitation guiding system topology is in a side wall levitation type, namely the 8-shaped coil is installed on two sides of the U-shaped track. To further increase the running speed of the train, the existing train must be placed in a vacuum pipe environment to reduce the aerodynamic drag of the train when running. However, this system has the following problems: 1) the induction current of the coils on the side wall 8 of the track can cause the track to generate heat, the heat dissipation is difficult in a vacuum environment, and the heat dissipation system is difficult to set; 2) the floated switch structure of lateral wall is complicated, need to set up high track roof beam, and this mode makes track roof beam design complicated, increases track roof beam consumptive material to the risk that upper train dropped when having the switch.

Disclosure of Invention

The invention provides a bottom suspension guide system which can solve the technical problems that in the prior art, a coil is difficult to dissipate heat, a turnout structure is complex and danger exists.

The invention provides a bottom suspension guiding system, which comprises a vacuum pipeline, a vehicle body, a superconducting magnet, a coil, a cooling device and a track, wherein the vehicle body and the track are arranged in the vacuum pipeline, the superconducting magnet is symmetrically arranged on the surface of the bottom in the vehicle body, the coil is arranged at the bottom of the track corresponding to the superconducting magnet, the coil is an asymmetric 8-shaped coil, the superconducting magnet and the coil interact to provide guiding force and suspension force for the vehicle body, and the cooling device is arranged at the bottom of the track and used for cooling the coil.

Preferably, the track comprises a planar track switch, the planar track switch comprises a forward track laid on the ground and a lateral track laid on the ground, and the lateral track extends out of an opening on one side of the forward track.

Preferably, the coils include a forward track coil disposed at the bottom of the forward track and a lateral track coil disposed at the bottom of the lateral track.

Preferably, the superconducting magnet is any one of: superconducting coils, superconducting blocks, permanent magnets, Halbach permanent magnet arrays and electromagnets.

Preferably, the asymmetric 8-shaped coil is an aluminum or copper wound asymmetric zero flux coil.

Through the technical scheme, the track and the vehicle body are arranged in the vacuum pipeline, the superconducting magnet is symmetrically arranged on the surface of the bottom in the vehicle body, the coil is arranged at the bottom of the track corresponding to the superconducting magnet, and the cooling device is arranged at the bottom of the track to cool the coil at the bottom of the track. Therefore, the cooling device is arranged at the bottom of the track, so that the heat dissipation problem of the coil can be solved, and the refrigeration structure is simplified. Furthermore, the coil arranged at the bottom of the track adopts an asymmetric 8-shaped coil, so that the levitation ratio of the system can be increased, sufficient levitation force is provided for the vehicle body, and the safe and stable operation of the vehicle is ensured.

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 schematic structural view of a bottom suspension guide system according to an embodiment of the present invention;

2A-2B illustrate a schematic diagram of an asymmetric 8-word coil and superconducting magnet, according to an embodiment of the present invention;

figure 3 shows a track switch diagram according to an embodiment of the invention.

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.

Fig. 1 shows a schematic structural diagram of a bottom suspension guide system according to an embodiment of the invention.

As shown in fig. 1, an embodiment of the present invention provides a bottom suspension guidance system, where the system includes a vacuum pipe 1, a vehicle body 2, a superconducting magnet (vehicle-mounted superconducting magnet) 3, a coil 4, a cooling device 5, and a track 6, where the vehicle body 2 and the track 6 are both disposed in the vacuum pipe 1, the superconducting magnet 3 is symmetrically disposed on a bottom surface in the vehicle body 2, the coil 4 is disposed at the bottom of the track 6 corresponding to the superconducting magnet 3, the coil 4 is an asymmetric 8-shaped coil, the superconducting magnet 3 and the coil 4 interact to provide a guidance force and a suspension force for the vehicle body 2, and the cooling device 5 is disposed at the bottom of the track 6 to cool the coil 4.

Through the technical scheme, the track and the vehicle body are arranged in the vacuum pipeline, the superconducting magnet is symmetrically arranged on the surface of the bottom in the vehicle body, the coil is arranged at the bottom of the track corresponding to the superconducting magnet, and the cooling device is arranged at the bottom of the track to cool the coil at the bottom of the track. Therefore, the cooling device is arranged at the bottom of the track, so that the heat dissipation problem of the coil can be solved, and the refrigeration structure is simplified. Furthermore, the coil arranged at the bottom of the track adopts an asymmetric 8-shaped coil, so that the levitation ratio of the system can be increased, sufficient levitation force is provided for the vehicle body, and the safe and stable operation of the vehicle is ensured.

The rail 6 may be, for example, a rail having only a bottom surface and no side wall. Therefore, the track only has the bottom surface, and the track maintenance cost is reduced.

For example, one set of coils may be provided for one set of superconducting magnets, and one set of superconducting magnets may be arranged in a face-to-face arrangement with the corresponding set of coils (e.g., two sets of superconducting magnets including a left superconducting magnet and a right superconducting magnet and two sets of coils including a left coil and a right coil may be provided, as shown in fig. 2). The number of superconducting magnets in each group of superconducting magnets and the number of coils in each group of coils can be set according to actual conditions, and the number of coils in each group of coils is not limited by the invention.

Fig. 2A-2B show schematic diagrams of an asymmetric 8-word coil and superconducting magnet according to an embodiment of the invention.

As shown in fig. 2A-2B, the two parts (two loops) of the asymmetric 8-word coil are completely asymmetric.

In fig. 2A-2B, reference numeral 7 denotes a left-side superconducting magnet, reference numeral 8 denotes a right-side superconducting magnet, reference numeral 9 denotes a left-side asymmetric 8-word coil, reference numeral 10 denotes a right-side asymmetric 8-word coil, reference numeral 11 denotes a left-side superconducting magnet center line, reference numeral 12 denotes a right-side superconducting magnet center line, reference numeral 13 denotes a left-side asymmetric 8-word line turn two-circuit gap center line, and reference numeral 14 denotes a right-side asymmetric 8-word line turn two-circuit gap center line.

As shown in fig. 2A, when the superconducting magnet shifts to the left, the rightward acting force of the left asymmetric 8-word coil on the superconducting magnet increases, the leftward acting force of the right asymmetric 8-word coil on the superconducting magnet decreases, and the left and right asymmetric 8-word coils act together to realize the vehicle body guiding function.

As shown in fig. 2B, when the superconducting magnet shifts to the left, the left acting force of the left asymmetric 8-word coil on the superconducting magnet decreases, the right acting force of the right asymmetric 8-word coil on the superconducting magnet increases, and the left and right asymmetric 8-word coils act together to realize the vehicle body guiding function.

Figure 3 shows a track switch diagram according to an embodiment of the invention.

As shown in fig. 3, the track 6 may include a planar track switch including a forward track (i.e., a track on which a route a shown in fig. 3 is located) laid on the ground and a lateral track (i.e., a track on which a route B shown in fig. 3 is located) laid on the ground, the lateral track extending out from an opening on one side of the forward track.

For example, the electronic switch may be used to control the on/off of the 8-coil to implement the rail-changing running of the train, and no further description is provided herein for the sake of not obscuring the present invention.

Because the forward track and the lateral track are both laid on the ground, compared with a side wall suspension type turnout which is required to be elevated at a track beam at a track transfer position, the plane type track turnout does not need to assume an additional high-altitude track, and the complexity and the cost of a line are reduced; and the train is very close to the ground when running on the forward track and the lateral track, the danger that the train drops to the ground from high altitude due to derailment at the turnout derailment position can not occur, the safety factor of the turnout structure is higher, and the safe and stable derailment of the train can be easily realized.

According to an embodiment of the present invention, as shown in fig. 2, the coil 4 includes a forward track coil 15 disposed at the bottom of the forward track and a lateral track coil 16 disposed at the bottom of the lateral track.

That is, the coils are disposed at the bottom of the forward rail and the lateral rail correspondingly.

According to an embodiment of the invention, the superconducting magnet 3 is any one of: superconducting coils, superconducting blocks, permanent magnets, Halbach permanent magnet arrays and electromagnets.

It will be appreciated by persons skilled in the art that the above description of an example superconducting magnet is merely illustrative and not intended to limit the present invention.

According to one embodiment of the invention, the asymmetric 8-shaped coil is an aluminum or copper wound asymmetric zero 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 … …," "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.