Eddy current braking electromagnet module with guiding function, guiding braking system and vehicle

Abstract

This application provides an eddy current braking electromagnet module with guiding function, a guiding braking system, and a vehicle, relating to the field of conventional magnetic levitation technology. The electromagnet module includes multiple first magnetic poles and a controller. Each first magnetic pole includes a first magnetic pole section and a second magnetic pole section. Based on functional requirements, the controller controls the polarity of the first and second magnetic pole sections to achieve braking or guiding functions. Thus, this braking electromagnet module can integrate guiding and braking, thereby achieving weight reduction. Furthermore, the polarity of the first and second magnetic pole sections can be controlled, and the distribution of eddy current braking force can be controlled, preventing concentrated braking force during emergency braking and potential damage to the vehicle structure.

Description

Technical Field

[0001] This application relates to the field of conventional magnetic levitation technology, and in particular to an eddy current braking electromagnet module with guiding function, a guiding braking system for conventional magnetic levitation vehicles, and a conventional magnetic levitation vehicle. Background Technology

[0002] The existing electromagnet layout design of conventional high-speed maglev trains, such as Figure 1 As shown, a typical single train car 1 is equipped with 12 guide electromagnets 2 and 2 eddy current braking electromagnets 3. Each guide electromagnet module weighs 400kg and can generate a guiding force of 30kN, which is evenly distributed on both sides of the train body to ensure that the train runs smoothly along the track; each eddy current braking electromagnet module weighs 600kg and can provide an eddy current braking force of 50kN, which is installed in the middle of the vehicle to achieve rapid non-contact braking.

[0003] When a train requires emergency braking due to a malfunction, braking is achieved by activating the eddy current braking electromagnet modules on the train. One eddy current braking electromagnet module is installed in the middle area on both sides of each train car. During normal train operation, these modules are inactive, activating only when emergency braking is needed. Due to the installation location of the eddy current braking electromagnet modules, the eddy current braking force acts on the central overlapping area of ​​each train car, resulting in a relatively concentrated braking force that may damage the car body structure during emergency braking. Furthermore, at high speeds, the guide rails are induced with current by the guide electromagnet modules. This eddy current effect is particularly pronounced at the ends of the train, requiring additional guide force at the ends to compensate for eddy current losses, thus reducing the economic efficiency of train operation. Summary of the Invention

[0004] In view of this, this application provides an eddy current braking electromagnet module with guiding function, a guiding braking system for a conventional magnetic levitation vehicle, and a conventional magnetic levitation vehicle, as follows:

[0005] An eddy current braking electromagnet module with guiding function is used for guiding support and eddy current braking of a conventional magnetic levitation vehicle. The eddy current braking electromagnet module includes: a plurality of first magnetic poles arranged along a first direction, each first magnetic pole including a first magnetic pole portion and a second magnetic pole portion arranged along a second direction, the first direction and the second direction having an angle; wherein, the first direction is parallel to the travel direction of the conventional magnetic levitation vehicle, the plane containing the first direction and the second direction is also parallel to the travel direction of the conventional magnetic levitation vehicle, and the magnetic pole directions of the first magnetic pole portion and the second magnetic pole portion are perpendicular to the plane containing the first direction and the second direction;

[0006] The eddy current braking electromagnet module also includes a controller, which controls the polarity of the first magnetic pole and the second magnetic pole based on the functional requirements of the conventional magnetic levitation vehicle; wherein the functional requirements of the conventional magnetic levitation vehicle include guiding support function or eddy current braking function.

[0007] Optionally, the plurality of first magnetic poles includes a first magnetic pole group and a second magnetic pole group, wherein the first magnetic pole group includes M first magnetic poles and the second magnetic pole group includes N first magnetic poles, where M and N are both integers greater than or equal to 2;

[0008] The controller is used to control the polarities of the first and second magnetic pole portions of the first magnetic poles in the first and second magnetic pole groups to be different, and to control the polarities of the first magnetic pole portions of adjacent first magnetic poles in the first and second magnetic pole groups to be the same, and the polarities of the second magnetic pole portions to be the same, thereby achieving a guiding and supporting function; or,

[0009] The controller is used to control the polarity of the first magnetic pole portion and the second magnetic pole portion of the first magnetic pole in the first magnetic pole group to be the same, the polarity of the first magnetic pole portion of adjacent first magnetic poles in the first magnetic pole group to be different, and the polarity of the second magnetic pole portion to be different. The controller is also used to control the polarity of the first magnetic pole portion and the second magnetic pole portion of the first magnetic pole in the second magnetic pole group to be different, the polarity of the first magnetic pole portion of two adjacent first magnetic poles in the second magnetic pole group to be the same, and the polarity of the second magnetic pole portion to be the same, so as to realize the eddy current braking function.

[0010] Optionally, in the first magnetic pole group, the first magnetic pole portion and the second magnetic pole portion of the first magnetic pole are connected, and along the first direction, the first magnetic poles in the first magnetic pole group are connected in series.

[0011] In the second magnetic pole group, along the first direction, the first magnetic pole portion of the i-th first magnetic pole in the second magnetic pole group is connected to the second magnetic pole portion of the (i+1)-th first magnetic pole, and the second magnetic pole portion of the i-th first magnetic pole is connected to the first magnetic pole portion of the (i+1)-th first magnetic pole, where i is an integer greater than or equal to 1.

[0012] Optionally, the plurality of first magnetic poles includes one group of first magnetic poles and one group of second magnetic poles;

[0013] Along the first direction, at least one first magnetic pole in the first magnetic pole group is located on one side of the second magnetic pole group, and at least one first magnetic pole in the first magnetic pole group is located on the other side of the second magnetic pole group.

[0014] Optionally, the controller includes a first controller, a second controller, and a third controller;

[0015] The first controller is connected to the first magnetic pole portion of the first magnetic pole in the first magnetic pole group along the first direction to control the polarity of the first magnetic pole portion and the second magnetic pole portion of the first magnetic pole in the first magnetic pole group;

[0016] The second controller is connected to the first magnetic pole portion of the first magnetic pole in the second magnetic pole group along the first direction, and the third controller is connected to the second magnetic pole portion of the first magnetic pole in the second magnetic pole group along the first direction, so as to control the polarity of the first magnetic pole portion and the second magnetic pole portion of the first magnetic pole in the second magnetic pole group.

[0017] Optionally, the first controller, the second controller, and the third controller all include a bidirectional chopper circuit;

[0018] The bidirectional chopper circuit is used to control the polarity of the first magnetic pole section and the second magnetic pole section.

[0019] Optionally, both the first magnetic pole portion and the second magnetic pole portion include a first iron core and a first coil wound around the first iron core. The extending direction of the first iron core is perpendicular to the plane containing the first direction and the second direction, and the winding direction of the first coil is parallel to the plane containing the first direction and the second direction.

[0020] A guiding braking system for a conventional magnetic levitation vehicle, the guiding braking system comprising X pairs of electromagnet modules arranged in pairs, where X is an integer greater than or equal to 1, each pair of electromagnet modules being arranged sequentially along the travel direction of the conventional magnetic levitation vehicle, and each electromagnet module in each pair being arranged on opposite sides of the vehicle body.

[0021] Wherein, the X pairs of electromagnet modules include at least one pair of first electromagnet modules, wherein the first electromagnet module is an eddy current braking electromagnet module with guiding function as described in any of the above claims.

[0022] Optionally, the X pairs of electromagnet modules further include at least one pair of second electromagnet modules, the second electromagnet modules being guide and support electromagnet modules, and along the first direction, the second electromagnet modules are located on at least one side of the first electromagnet modules;

[0023] The second electromagnet module includes a second magnetic pole, the second magnetic pole including a second iron core and a second coil wound on the second iron core, the second iron core extending along the second direction.

[0024] Optionally, the first electromagnet module and the second electromagnet module are arranged at intervals along the travel direction of the conventional magnetic levitation vehicle.

[0025] Optionally, the X pairs of electromagnet modules include at least two pairs of the second electromagnet modules;

[0026] Along the direction of travel of the conventional magnetic levitation vehicle, the first and Nth electromagnet modules in the X pair of electromagnet modules are the second electromagnet modules.

[0027] A conventional magnetic levitation vehicle, characterized in that it includes the guidance and braking system of the conventional magnetic levitation vehicle described in any one of the preceding claims.

[0028] Compared with existing technologies, the beneficial effects of the technical solution in this application are as follows:

[0029] The electromagnet module includes multiple first magnetic poles arranged along a first direction and a controller. Each first magnetic pole includes a first magnetic pole section and a second magnetic pole section arranged along a second direction. The first and second directions intersect, with the first direction parallel to the travel direction of the conventional maglev vehicle. The plane containing the first and second directions is also parallel to the travel direction of the conventional maglev vehicle. Furthermore, the magnetic pole directions of the first and second magnetic pole sections are perpendicular to the plane containing the first and second directions, allowing the electromagnet module's force to act directly on the track surface. The controller controls the polarity of the first and second magnetic pole sections based on functional requirements, thereby achieving braking or guiding functions, and switching between these functions. Therefore, this braking electromagnet module integrates guiding and braking, achieving a lightweight design. Moreover, the braking and guiding forces of this electromagnet module can act directly on the track surface, effectively enhancing both braking and guiding forces. At the same time, the polarity of the first and second magnetic poles can be controlled, thereby controlling the distribution of eddy current braking force. This prevents the braking force from being too concentrated during braking, which could potentially damage the vehicle structure during emergency braking. Attached Figure Description

[0030] To more clearly illustrate the technical solutions in the embodiments of this application or related technologies, the drawings used in the description of the embodiments or prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of this application. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.

[0031] The structures, proportions, sizes, etc., shown in the accompanying drawings are only for the purpose of assisting those skilled in the art in understanding and reading the content disclosed in the specification, and are not intended to limit the implementation conditions of this application. Therefore, they have no substantial technical significance. Any modifications to the structure, changes in the proportions, or adjustments to the size should still fall within the scope of the technical content disclosed in this application, provided that they do not affect the effects and purposes that this application can produce.

[0032] Figure 1 A schematic diagram of the layout of existing guiding electromagnets and eddy current electromagnets.

[0033] Figure 2 A schematic diagram of a guiding eddy current braking electromagnet module provided in this application;

[0034] Figure 3 A schematic diagram of another eddy current braking electromagnet module with guiding function provided in this application;

[0035] Figure 4 A schematic diagram of another eddy current braking electromagnet module with guiding function provided in this application;

[0036] Figure 5 This is a schematic diagram of the circuit structure of a bidirectional chopper circuit;

[0037] Figure 6 This is a schematic diagram of the guiding and braking system of a conventional magnetic levitation vehicle provided in this application. Detailed Implementation

[0038] The embodiments of this application will now be clearly and completely described with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0039] To make the above-mentioned objectives, features and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0040] As described in the background section, how to rationally design and arrange electromagnets to realize the guiding support and eddy current braking functions of conventional magnetic levitation vehicles has become a key issue for those skilled in the art.

[0041] Based on this, this application provides an eddy current braking electromagnet module with guiding function (also known as guiding support function). This eddy current braking electromagnet module is used to realize guiding support and eddy current braking of conventional magnetic levitation vehicles. That is, this eddy current braking electromagnet module can realize both eddy current braking function and guiding support function. Figure 2 As shown, Figure 2 This application provides a structural schematic diagram of an eddy current braking electromagnet with guiding function. Figure 2 Figure a represents a structural schematic diagram under guiding conditions. Figure 2Figure b represents a schematic diagram of the structure under braking conditions. The eddy current braking electromagnet includes: a plurality of first magnetic poles 100 arranged along a first direction, each first magnetic pole 100 including a first magnetic pole portion 102 and a second magnetic pole portion 104 arranged along a second direction. The first and second directions are located in the same plane and have an angle between them. The first direction is parallel to the travel direction of the conventional magnetic levitation vehicle, and the plane containing the first and second directions is also parallel to the travel direction of the conventional magnetic levitation vehicle. The magnetic pole directions of the first magnetic pole portion 102 and the second magnetic pole portion 104 are perpendicular to the plane containing the first and second directions, that is, the magnetic pole directions of the first magnetic pole portion 102 and the second magnetic pole portion 104 are parallel to each other and perpendicular to the travel direction of the conventional magnetic levitation vehicle. Specifically, Figure 2 The plane containing the first magnetic pole part 102 and the second magnetic pole part 104 is the same plane, and this plane is opposite to the track surface. The track surface can be understood as the object of action of the eddy current braking electromagnet and the guiding electromagnet in the track of the normal-conducting magnetic levitation vehicle, so as to realize the braking and guidance of the normal-conducting magnetic levitation vehicle.

[0042] It should be noted that the electromagnet module described in this application is an eddy current braking electromagnet module. Therefore, the eddy current braking electromagnet module described in this application has the general design of a conventional eddy current electromagnet module. For example, the magnetic pole surface of the first magnetic pole 100 in this eddy current braking electromagnet module faces the track surface, and thus the magnetic pole surfaces of the first magnetic pole portion 102 and the second magnetic pole portion 104 in the first magnetic pole 100 also face the track surface. It can be understood that multiple first magnetic poles 100 are arranged laterally parallel to the track surface, and the first magnetic pole portion 102 and the second magnetic pole portion 104 in the first magnetic pole 100 are arranged longitudinally parallel to the track surface. Alternatively, the magnetic pole surface of the first magnetic pole 100 may be opposite to the track surface, that is, the magnetic pole direction of the first magnetic pole portion 102 and the second magnetic pole portion 104 in the first magnetic pole 100 directly faces the track surface, for example, it can be perpendicular to the track surface. This allows the magnetic pole surface of each first magnetic pole 100 in this electromagnet module to directly act on the track surface, greatly improving the effective force of the electromagnet module on the track surface. The electromagnet module described in this application can increase the guiding force by 20% and the braking force by 5%, thereby providing greater guiding force and braking force.

[0043] Regarding the aforementioned arrangement of the plurality of first magnetic poles 100 in a transverse direction parallel to the track surface, and the arrangement of the first magnetic pole portions 102 and second magnetic pole portions 104 within the first magnetic poles 100 in a longitudinal direction parallel to the track surface, "parallel to the track surface" does not mean strictly parallel to the track surface, but rather a limitation on the relative relationship between the arrangement of the first magnetic poles 100 and the track surface, as well as the relative relationship between the arrangement of the first magnetic pole portions 102 and the second magnetic pole portions 104 and the track surface. Since the track surface is not necessarily a plane, the aforementioned "parallel to the track surface" refers to being parallel to the plane representing the track surface. "Perpendicular to the track surface" also refers to being perpendicular to the plane representing the track surface. This interpretation also applies to subsequent descriptions involving parallel or perpendicular to the track surface, and will not be elaborated further in this application.

[0044] like Figure 3 As shown, Figure 3 Figure a represents the guiding condition, and Figure b represents the braking condition. The eddy current braking electromagnet module also includes a controller 200. The controller 200 is used to control the polarity of the first magnetic pole part 102 and the second magnetic pole part 104 based on the functional requirements of the conventional magnetic levitation vehicle. That is, the controller 200 can control the polarity of the first magnetic pole part 102 and the second magnetic pole part 104 of each of the multiple first magnetic poles 100 based on the functional requirements of the conventional magnetic levitation vehicle.

[0045] Since the guiding and braking functions require different polarities for the magnetic poles in the electromagnet module, and the electromagnet module described in this application includes multiple first magnetic poles 100 arranged sequentially, with each first magnetic pole 100 comprising a first magnetic pole portion 102 and a second magnetic pole portion 104, and the polarities of the first magnetic pole portion 102 and the second magnetic pole portion 104 of each first magnetic pole 100 can be controlled by the controller 200, this eddy current braking electromagnet module can realize either guiding or braking functions based on the functional requirements of a conventional magnetic levitation vehicle.

[0046] Specifically, for the electromagnet module described in this application, the controller 200 can control the polarities of the first magnetic pole portion 102 and the second magnetic pole portion 104 in the first magnetic pole 100 to be different, and control the polarities of the first magnetic pole portions 102 of adjacent first magnetic poles 100 to be the same and the polarities of the second magnetic pole portions 104 to be the same (e.g., Figure 2As shown in Figure a), the controller 200 achieves the guiding and supporting function. That is, the controller 200 can control the first magnetic pole portion 102 and the second magnetic pole portion 104 within the same first magnetic pole 100 to have different polarities, for example, N pole and S pole respectively. Simultaneously, it can control the first magnetic pole portions 102 of two adjacent different first magnetic poles 100 to have the same polarity, for example, both being N poles, and the second magnetic pole portions 104 of two adjacent different first magnetic poles 100 to have the same polarity, for example, both being S poles. Based on this, at least two of the aforementioned first magnetic poles 100, along the first direction, have the same polarity for their first magnetic pole portions 102 and the same polarity for their second magnetic pole portions 104; along the second direction, the polarities of the first magnetic pole portions 102 and the second magnetic pole portions 104 are different. Therefore, the aforementioned at least two first magnetic poles 100 in this eddy current braking electromagnet module can be used to achieve the guiding and supporting function.

[0047] And / or, the controller 200 can control the first magnetic pole portion 102 and the second magnetic pole portion 104 in the first magnetic pole 100 to have the same polarity, and control the first magnetic pole portion 102 of adjacent first magnetic poles 100 to have different polarities and the second magnetic pole portion 104 to have different polarities (e.g., Figure 2 (As shown in the dashed box in Figure b). That is to say, the controller 200 can control the first magnetic pole portion 102 and the second magnetic pole portion 104 within the same first magnetic pole 100 to have the same polarity, for example, both being S or N poles. Simultaneously, the controller 200 also controls the first magnetic pole portions 102 of two adjacent different first magnetic poles 100 to have different polarities, and the second magnetic pole portions 104 of two adjacent different first magnetic poles 100 to have different polarities. Based on this, at least two adjacent first magnetic poles 100 among the plurality of first magnetic poles 100 have different polarities for their first magnetic pole portions 102 and second magnetic pole portions 104 along a first direction, and the same polarity for their first magnetic pole portions 102 and second magnetic pole portions 104 along a second direction. Therefore, the at least two first magnetic poles 100 in this eddy current braking electromagnet module can be used to implement the eddy current braking function.

[0048] As described above, the eddy current braking electromagnet module provided in this application includes a plurality of first magnetic poles 100 arranged along a first direction. The first magnetic poles 100 are further divided into first magnetic pole portions 102 and second magnetic pole portions 104 arranged along a second direction. The polarity of the first magnetic pole portion 102 and the second magnetic pole portion 104 of each of the plurality of first magnetic poles 100 can be controlled, so that the eddy current braking electromagnet module can realize the guiding function or braking function based on the functional requirements of a conventional magnetic levitation vehicle. Therefore, the eddy current braking electromagnet module can be applied to various working conditions. Furthermore, since the polarity of the first magnetic pole portion 102 and the second magnetic pole portion 104 of each of the multiple first magnetic poles 100 can be controlled, the eddy current braking electromagnet module can, based on the change in polarity of the first magnetic pole portion 102 and the second magnetic pole portion 104, use a portion of the first magnetic poles 100 to achieve eddy current braking and another portion of the first magnetic poles 100 to maintain vehicle guidance during braking. Thus, during braking, it can take into account both guidance support and eddy current braking, and maintain vehicle balance during braking.

[0049] Meanwhile, this electromagnet module can perform both guiding and braking functions, thus enabling the switching between guiding support and eddy current braking modes. Specifically, as described above, all of the multiple first magnetic poles 100 in the eddy current braking electromagnet module can be used for guiding, or a portion of the multiple first magnetic poles 100 can be used for guiding support while another portion is used for eddy current braking. Therefore, it is unnecessary to specifically arrange an electromagnet module that only performs braking functions (such as...) for vehicle braking. Figure 1 (As shown in reference numeral 3), instead, the eddy current braking electromagnet module with guiding function described in this application can be used to take into account both guiding and braking functions.

[0050] It should be noted that, for this electromagnet module, in the guiding condition, all of the multiple first magnetic poles 100 can be used to achieve the guiding function; in the braking condition, some of the first magnetic poles 100 can achieve the braking function, while others achieve the guiding function, in order to maintain the guiding force and maintain the vehicle's balance during braking. Furthermore, the first magnetic poles 100 that achieve eddy current braking can be selected, thus allowing the number and location of the first magnetic poles 100 that achieve eddy current braking to be chosen. Therefore, this electromagnet module can also increase the braking force and the distribution of braking force during emergency braking, such as increasing the maximum braking force at 600 km / h, while avoiding excessive concentration of braking force that could affect vehicle safety. Thus, this eddy current braking electromagnet module with guiding function can simultaneously improve braking force and guiding force, and can effectively meet the braking requirements under high-speed conditions.

[0051] It is known that when a train is running at high speed, the track is induced with eddy currents by the guide electromagnet module. This eddy current effect is particularly pronounced at the vehicle ends, thus requiring additional guiding force at the vehicle ends to compensate for eddy current losses. The eddy current braking electromagnet module provided in this application can achieve guiding braking function. Therefore, this eddy current braking electromagnet module with guiding function can replace at least some conventional guide electromagnet modules, suppressing the induced currents on the train track caused by the guide electromagnet module, thereby suppressing the eddy current effect at the vehicle ends and improving the economic efficiency of vehicle operation.

[0052] Furthermore, this eddy current braking electromagnet module with guiding function combines guiding and braking functions into one, that is, it combines the guiding electromagnet and the braking electromagnet into one. Compared with a conventional guiding electromagnet, it reduces weight by 10%, and compared with a conventional braking electromagnet, it reduces weight by 40%, which can significantly reduce the overall weight of the module, thereby achieving the goal of lightweighting. For example, the electromagnet module described in this application can weigh 360 kg.

[0053] In one embodiment of this application, such as Figure 4 As shown, the plurality of first magnetic poles 100 include a first magnetic pole group 110 and a second magnetic pole group 120. The first magnetic pole group 110 includes M first magnetic poles 100, and the second magnetic pole group 120 includes N first magnetic poles 100, where M and N are both integers greater than or equal to 2.

[0054] The controller is used to control the polarities of the first magnetic pole portion 102 and the second magnetic pole portion 104 of the first magnetic pole 100 in the first magnetic pole group 110 and the second magnetic pole group 120 to be different, and to control the polarities of the first magnetic pole portion 102 and the second magnetic pole portion 104 of adjacent first magnetic poles 100 in the first magnetic pole group 110 and the second magnetic pole group 120 to be the same, thereby realizing the guiding and supporting function. That is to say, in the guiding condition, the controller 200 can control the polarities of the first magnetic pole portion 102 and the second magnetic pole portion 104 of each first magnetic pole 100 in the first magnetic pole group 110 and the second magnetic pole group 120 to be different, the polarities of the first magnetic pole portion 102 of adjacent first magnetic poles 100 to be the same, and the polarities of the second magnetic pole portion 104 of adjacent first magnetic poles 100 to be the same. In other words, under guiding conditions, along the first direction, the polarity of each first magnetic pole portion 102 is the same, and the polarity of each second magnetic pole portion 104 is the same; along the second direction, the polarities of the first magnetic pole portions 102 and second magnetic pole portions 104 of each first magnetic pole are different. Therefore, under guiding conditions, each first magnetic pole 100 is used to achieve the guiding function, that is, both the first magnetic pole group 110 and the second magnetic pole group 120 are used to achieve the guiding function, ensuring the guiding capability of the vehicle during high-speed driving.

[0055] The controller 200 is used to control the polarity of the first pole portion 102 and the second pole portion 104 of the first magnetic pole 100 in the first magnetic pole group 110 to be different, and the polarity of the first pole portion 102 of adjacent first magnetic poles 100 in the first magnetic pole group 110 to be the same, and the polarity of the second pole portion 104 to be the same. Simultaneously, the controller 200 is also used to control the polarity of the first pole portion 102 and the second pole portion 104 of the first magnetic pole 100 in the second magnetic pole group 120 to be the same, and the polarity of the first pole portion 102 of adjacent first magnetic poles 100 in the second magnetic pole group 120 to be different, and the polarity of the second pole portion 104 to be different. Based on this, the first magnetic pole group 110 can provide guiding support force, and the second magnetic pole group 120 can provide eddy current braking force, thus achieving eddy current braking function based on the first magnetic pole group 110 and the second magnetic pole group 120. In other words, under braking conditions, the first magnetic pole group 110 in the eddy current braking electromagnet module performs the guiding function, and the second magnetic pole group 120 performs the braking function. Thus, under braking conditions, while ensuring braking force, the vehicle body balance can also be maintained based on the guiding force of the first magnetic pole group 110.

[0056] It should be noted that in other embodiments of this application, the controller 200 may also control the first magnetic pole group 110 to provide eddy current braking force and control the second magnetic pole group 120 to provide guiding support force. That is, for this application, under braking conditions, the eddy current braking function can be achieved by either the first magnetic pole group 110 or the second magnetic pole group 120, and the guiding function can be achieved by the other. In other words, under braking conditions, a portion of the multiple first magnetic poles 100 of the eddy current braking electromagnet module is used to achieve the eddy current braking function, and the remaining first magnetic poles 100 are used to achieve the guiding function, so as to provide sufficient braking force while maintaining the vehicle body balance under braking or emergency braking conditions.

[0057] In one embodiment of this application, such as Figure 3As shown, in the first magnetic pole group 110, the first magnetic pole portion 102 and the second magnetic pole portion 104 of the first magnetic pole 100 are connected together, and the first magnetic poles 100 in the first magnetic pole group 110 are connected in series along the first direction. Specifically, in the first magnetic pole group 110, the first magnetic pole portion 102 and the second magnetic pole portion 104 of each first magnetic pole 100 are connected together, and each first magnetic pole 100 is connected end to end in series. For example, the first magnetic pole portion 102 and the second magnetic pole portion 104 of the first magnetic pole 100 are connected in series, and the second magnetic pole portion 104 of the first first magnetic pole 100 is connected to the first magnetic pole portion 102 of the second first magnetic pole 100, the second magnetic pole portion 104 of the second first magnetic pole 100 is connected to the first magnetic pole portion 102 of the third first magnetic pole 100, and so on. Based on this, the first magnetic pole portion 102 and the second magnetic pole portion 104 in each first magnetic pole 100 are connected, and each first magnetic pole 100 is connected end to end in sequence. Thus, in the first magnetic pole group 110, along the first direction, adjacent first magnetic pole portions 102 have the same polarity, and adjacent second magnetic pole portions 104 have the same polarity. Furthermore, along the second direction, the first magnetic pole portions 102 and the second magnetic pole portions 104 in each first magnetic pole 100 have different polarities. In other words, in the first magnetic pole group 110, along the first direction, the first magnetic pole portions 102 have the same polarity, and the second magnetic pole portions 104 have the same polarity. Furthermore, along the second direction, the first magnetic pole group 110 has different polarities, thereby providing guiding support force and realizing the guiding support function.

[0058] like Figure 3 As shown, in the second magnetic pole group 120, along the first direction, the first magnetic pole portion 102 of the i-th first magnetic pole 100 is connected to the second magnetic pole portion 104 of the (i+1)-th first magnetic pole 100, and the second magnetic pole portion 104 of the i-th first magnetic pole 100 is connected to the first magnetic pole portion 102 of the (i+1)-th first magnetic pole 100, where i is an integer greater than or equal to 1. That is, in the second electromagnetic group, the first magnetic pole portion 102 of the first first magnetic pole 100 is connected to the second magnetic pole portion 104 of the second first magnetic pole 100, the second magnetic pole portion 104 of the second first magnetic pole 100 is connected to the first magnetic pole portion 102 of the third first magnetic pole 100, the first magnetic pole portion 102 of the third first magnetic pole 100 is connected to the second magnetic pole portion 104 of the fourth first magnetic pole 100, and so on, forming... A first connection loop is formed; the second magnetic pole portion 104 in the first first magnetic pole 100 is connected to the first magnetic pole portion 102 in the second first magnetic pole, the first magnetic pole portion 102 in the second first magnetic pole 100 is connected to the second magnetic pole portion 104 in the third first magnetic pole 100, the second magnetic pole portion 104 in the third first magnetic pole 100 is connected to the first magnetic pole portion 102 in the fourth first magnetic pole 100, and so on, to form a second connection loop.

[0059] In the first connection loop, the polarities of adjacent first magnetic pole portions 102 and second magnetic pole portions 104 are different, and in the second connection loop, the polarities of adjacent second magnetic pole portions 104 and first magnetic pole portions 102 are different. Therefore, in the second magnetic pole group 120, based on the aforementioned first and second connection loops, along the first direction, the polarities of adjacent first magnetic pole portions 102 can be controlled to be different, and the polarities of adjacent second magnetic pole portions 104 can be different; along the second direction, the polarities of the first magnetic pole portions 102 and second magnetic pole portions 104 are the same, providing eddy current braking force; or, in the second magnetic pole group 120, based on the aforementioned first and second connection loops, along the first direction, the polarities of adjacent first magnetic pole portions 102 can be controlled to be the same, and the polarities of adjacent second magnetic pole portions 104 can be the same; along the second direction, the polarities of the first magnetic pole portions 102 and second magnetic pole portions 104 are different, achieving a guiding function. In other words, based on the first and second connection circuits mentioned above, the polarity control of the first magnetic pole portion 102 and the second magnetic pole portion 104 in the second magnetic pole group 120 can be realized, so that the second magnetic pole group 120 can provide eddy current braking force or provide guiding support force based on the polarity control of the first magnetic pole portion 102 and the second magnetic pole portion 104.

[0060] In one embodiment of this application, such as Figure 4 As shown, the aforementioned plurality of first magnetic poles 100 include one group of first magnetic poles 110 and one group of second magnetic poles 120, that is, the eddy current braking electromagnet module includes one group of first magnetic poles 110 and one group of second magnetic poles 120. Along the first direction, at least one first magnetic pole 100 in the first magnetic pole group 110 is located on one side of the second magnetic pole group 120, and at least one first magnetic pole 100 in the first magnetic pole group 110 is located on the other side of the second magnetic pole group 120. In other words, the second magnetic pole group 120 is located between two adjacent first magnetic poles 100 in the first magnetic pole group 110. Therefore, in the eddy current braking electromagnet module, the plurality of first magnetic poles 100 in the second magnetic pole group 120 used to provide eddy current braking force are located in the same area, which can maximize the braking effect and ensure braking force.

[0061] It should be noted that in the above embodiments, the plurality of first magnetic poles 100 include one group of first magnetic poles 110 and one group of second magnetic poles 120. However, this application does not limit this. In other embodiments of this application, the plurality of first magnetic poles 100 may also include two groups of first magnetic poles 110 and two groups of second magnetic poles 120, or even more. It is not required that the number of groups of first magnetic poles 110 and second magnetic poles 120 be the same. It depends on the specific situation.

[0062] In one embodiment of this application, such as Figure 3As shown, the controller 200 includes a first controller 202, a second controller 204, and a third controller 206. The first controller 202 is connected to the first magnetic pole portion 102 of the first first magnetic pole 100 along the first direction in the first magnetic pole group 110. That is, the first controller 202 can be connected to the end of the connection path formed by multiple first magnetic poles 100 connected in series in the first magnetic pole group 110, to input a current with a certain direction into the connection path, thereby controlling the polarity of the first magnetic pole portion 102 and the second magnetic pole portion 104 of the first magnetic pole 100 in the first magnetic pole group 110. Specifically, the polarities of the first magnetic pole portion 102 and the second magnetic pole portion 104 in each first magnetic pole 100 are different, and the polarities of adjacent first magnetic pole portions 102 and adjacent second magnetic pole portions 104 along the first direction are the same, providing guiding support force and realizing the guiding function.

[0063] The second controller 204 is connected to the first magnetic pole portion 102 of the first first magnetic pole 100 along the first direction in the second magnetic pole group 120. That is, the second controller 204 is connected to the end of the first connection loop in the second magnetic pole group 120 to input a current in a specific direction into the first connection loop, thereby controlling the polarity of the first magnetic pole portion 102 and the second magnetic pole portion 104 of the first connection loop in the second magnetic pole group 120. The third controller 206 is connected to the second magnetic pole portion 104 of the first first magnetic pole 100 along the first direction in the second magnetic pole group 120. That is, the third controller 206 is connected to the end of the second connection loop in the second magnetic pole group 120 to input a current in a specific direction into the second connection loop, thereby controlling the polarity of the first magnetic pole portion 102 and the second magnetic pole portion 104 of the second connection loop in the second magnetic pole group 120. Based on this, the second controller 204 and the third controller 206 can collaboratively control the polarity of the first magnetic pole portion 102 and the second magnetic pole portion 104 in the second magnetic pole group 120, providing guiding support force or eddy current braking force to achieve guiding or braking functions. It should be noted that, in order to... Figure 3 The structural diagram is simple. Figure 3 The third controller 206 is connected to the first magnetic pole portion 102 of the last first magnetic pole 100 in the second connection loop. At this time, the third controller 206 is also connected to the end of the second connection loop. The first controller 202 and the second controller 204 can also be configured in the same way. For example, the first controller 202 is connected to the first magnetic pole portion 102 of the last first magnetic pole 100 in the first magnetic pole group 110, and the second controller 204 can also be connected to the second magnetic pole portion 104 of the last first magnetic pole 100 in the first connection loop.

[0064] In one embodiment of this application, the first controller 202, the second controller 204, and the third controller 206 all include bidirectional chopper circuits. The bidirectional chopper circuits in each controller are used to control the polarity of the first magnetic pole portion 102 and the second magnetic pole portion 104. It should be noted that the eddy current braking electromagnet module with guiding function described in this application is known. Therefore, the electromagnet module described in this application is the same as a typical eddy current braking electromagnet module, originally equipped with a bidirectional chopper circuit, which can be used to control the polarity of each first magnetic pole portion 102 and the second magnetic pole portion 104. Specifically, as... Figure 5 As shown, the bidirectional chopper circuit includes a first transistor Q1, a second transistor Q2, a third transistor Q3, and a fourth transistor Q4, with a first diode, a second diode, a third diode, and a fourth diode corresponding to each transistor, as well as an electromagnetic coil. This application will not elaborate on the specific working process and principle of the bidirectional chopper circuit. Additionally, as... Figure 5 As shown, Figure 5 Figures a, b, c, and d are schematic diagrams showing different directions of the bidirectional chopper circuit.

[0065] It should be noted that the controller of the eddy current braking electromagnet with guiding function described in this application is a controller with a bidirectional chopper circuit. This controller can control the polarity of the first magnetic pole part 102 and the second magnetic pole part 104 through the bidirectional chopper circuit via a decoupling control algorithm, so that the switching response time between the guiding mode and the braking mode is small, for example, less than 0.2 seconds.

[0066] In one embodiment of this application, both the first magnetic pole portion 102 and the second magnetic pole portion 104 include a first iron core and a first coil wound around the first iron core. The extending direction of the first iron core is perpendicular to the plane containing the first direction and the second direction, and the winding direction of the first coil is parallel to the plane containing the first direction and the second direction. That is, the extending direction of the first iron core faces the track surface of the conventional magnetic levitation vehicle, and the winding direction of the first coil is parallel to the track surface of the conventional magnetic levitation vehicle. Based on this, the magnetic pole surface of the first magnetic pole 100 is opposite to the track surface, that is, the magnetic pole directions of the first magnetic pole portion 102 and the second magnetic pole portion 104 in the first magnetic pole 100 are both opposite to the track surface, so that the magnetic pole surface of each first magnetic pole 100 in the electromagnet module can directly act on the track surface, greatly improving the effective force of the electromagnet module on the track surface.

[0067] This application also provides a guiding and braking system for conventional magnetic levitation, such as... Figure 6 As shown, Figure 6This application provides a schematic diagram of a conventional magnetic levitation guiding and braking system. The system includes X pairs of electromagnet modules, where X is an integer greater than or equal to 1. Each pair of electromagnet modules is sequentially arranged along the direction of travel of the conventional magnetic levitation vehicle. For example... Figure 6 In this diagram, X=7, meaning the guiding braking system includes 7 pairs of electromagnet modules, or a total of 14 electromagnet modules. These 7 pairs of electromagnet modules are arranged sequentially along the direction of travel of the conventional magnetic levitation vehicle. For each of the X pairs of electromagnet modules, the two electromagnet modules in each pair are respectively located on opposite sides of the vehicle body; that is, the two electromagnet modules in each pair are respectively located on opposite sides of the vehicle body.

[0068] The aforementioned X pairs of electromagnet modules include at least one pair of first electromagnet modules 10, where the first electromagnet module 10 is a guiding eddy current braking electromagnet module as described in any of the above embodiments. In other words, the X pairs of electromagnet modules in this guiding braking system are guiding eddy current braking electromagnet modules as described in any of the above embodiments, rather than requiring eddy current braking electromagnets only to be installed in the central overlapping area of ​​the vehicle. By utilizing the aforementioned guiding eddy current braking electromagnet modules, braking force can be applied to more areas of the vehicle body during braking, avoiding concentrated braking force and preventing damage to the vehicle structure during emergency braking.

[0069] In one embodiment of this application, such as Figure 6 As shown, the aforementioned X pairs of electromagnet modules also include at least one pair of second electromagnet modules 20, which are guiding and supporting electromagnet modules. Furthermore, in the direction of travel of the conventional magnetic levitation vehicle, i.e., along the first direction, the second electromagnet module is located on at least one side of the first electromagnet module; that is, a second electromagnet is provided on one side of the first electromagnet module, or second electromagnets are provided on both sides.

[0070] Specifically, the second electromagnet module 20 includes a second magnetic pole, which includes a second iron core and a second coil wound around the second iron core. The second iron core extends along a second direction, meaning the extension direction of the second iron core of the second electromagnet module is parallel to the track surface, thus the direction of the magnetic pole of the second electromagnet module is parallel to the track surface.

[0071] As can be seen from the above, the guiding braking system can include either an eddy current braking electromagnet module with guiding function or a conventional guiding support electromagnet module, so as to provide sufficient guiding force and ensure the safe operation of the vehicle when the conventional magnetic levitation vehicle is running at high speed.

[0072] In one embodiment of this application, such as Figure 6As shown, along the direction of travel of the conventional magnetic levitation vehicle, the first electromagnet module 10 and the second electromagnet module 20 are arranged at intervals. Specifically, a first electromagnet module 10 can be set between two second electromagnet modules 20, and a second electromagnet module 20 can be set between two first electromagnet modules 10. That is, the first electromagnet module 10 and the second electromagnet module 20 are arranged at equal intervals in sequence, so that the guiding force and braking force on all parts of the vehicle body are relatively balanced, whether in the guiding condition or the braking condition.

[0073] In one embodiment of the application, such as Figure 6 As shown, the X-pair of electromagnet modules includes at least two pairs of second electromagnet modules 20. Along the travel direction of the conventional magnetic levitation vehicle, the first and Nth electromagnet modules in the X-pair of electromagnet modules are second electromagnet modules 20. That is to say, for the X-pair of electromagnet modules in this guiding braking system, the first and last electromagnet modules are both conventional guiding electromagnet modules, meaning that the X-pair of electromagnet modules consists mostly of conventional guiding electromagnet modules to provide sufficient guiding force for guiding and braking conditions, thereby maintaining vehicle balance.

[0074] This application also provides a conventional magnetic levitation vehicle, which includes the guiding braking system described in any of the above embodiments.

[0075] In summary, this application provides an eddy current braking electromagnet module with guiding function, a guiding and braking system for a conventional magnetic levitation vehicle, and a conventional magnetic levitation vehicle. The electromagnet module includes multiple first magnetic poles arranged along a first direction and a controller. Each first magnetic pole includes a first magnetic pole portion and a second magnetic pole portion arranged along a second direction. The first and second directions intersect, with the first direction parallel to the travel direction of the conventional magnetic levitation vehicle. The plane containing the first and second directions is also parallel to the travel direction of the conventional magnetic levitation vehicle, and the magnetic pole directions of the first and second magnetic pole portions are perpendicular to the plane containing the first and second directions. This allows the force of the electromagnet module to be directly directed towards the track surface, thus acting directly on the track surface. Based on functional requirements, the controller can control the polarity of the first and second magnetic pole portions to achieve braking or guiding functions, as well as switching between braking and guiding functions, making it suitable for various operating conditions.

[0076] Therefore, this braking electromagnet module can achieve integrated guidance and braking, thus achieving the goal of lightweight design. Furthermore, the guiding braking force and eddy current braking force can be directly applied to the track surface, effectively enhancing both braking and guiding forces. Simultaneously, the polarity of the first and second magnetic poles can be controlled, thereby controlling the distribution of the eddy current braking force. This prevents the braking force from becoming too concentrated during braking, which could potentially damage the vehicle structure during emergency braking.

[0077] The various embodiments in this specification are described in a progressive, parallel, or combined manner. Each embodiment focuses on its differences from other embodiments, and similar or identical parts between embodiments can be referred to interchangeably. For the apparatuses disclosed in the embodiments, since they correspond to the methods disclosed in the embodiments, the descriptions are relatively simple, and relevant parts can be referred to the method section.

[0078] It should be noted that, in the description of this application, the terms "upper," "lower," "top," "bottom," "inner," and "outer," etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, and are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application. When a component is considered to be "connected" to another component, it can be directly connected to the other component or there may be a component centrally located at the same time.

[0079] It should also be noted that, in this document, relational terms such as "first" and "second" are used merely to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that an article or apparatus comprising a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such an article or apparatus. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the article or apparatus that includes the aforementioned element.

[0080] The above description of the disclosed embodiments enables those skilled in the art to make or use this application. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of this application. Therefore, this application is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An eddy current braking electromagnet module with guiding function, characterized in that, The eddy current braking electromagnet module includes: a plurality of first magnetic poles arranged along a first direction, each first magnetic pole including a first magnetic pole portion and a second magnetic pole portion arranged along a second direction, the first direction and the second direction having an angle; wherein, the first direction is parallel to the travel direction of the conventional magnetic levitation vehicle, the plane containing the first direction and the second direction is also parallel to the travel direction of the conventional magnetic levitation vehicle, and the magnetic pole directions of the first magnetic pole portion and the second magnetic pole portion are perpendicular to the plane containing the first direction and the second direction; The eddy current braking electromagnet module also includes a controller, which controls the polarity of the first magnetic pole and the second magnetic pole based on the functional requirements of the conventional magnetic levitation vehicle; wherein the functional requirements of the conventional magnetic levitation vehicle include guiding support function or eddy current braking function.

2. The eddy current braking electromagnet module with guiding function according to claim 1, characterized in that, The plurality of first magnetic poles includes a first magnetic pole group and a second magnetic pole group. The first magnetic pole group includes M first magnetic poles, and the second magnetic pole group includes N first magnetic poles, where M and N are both integers greater than or equal to 2. The controller is used to control the polarities of the first and second magnetic pole portions of the first magnetic poles in the first and second magnetic pole groups to be different, and to control the polarities of the first magnetic pole portions of adjacent first magnetic poles in the first and second magnetic pole groups to be the same, and the polarities of the second magnetic pole portions to be the same, thereby achieving a guiding and supporting function; or, The controller is used to control the polarity of the first magnetic pole portion and the second magnetic pole portion of the first magnetic pole in the first magnetic pole group to be different, the polarity of the first magnetic pole portion of two adjacent first magnetic poles in the first magnetic pole group to be the same, and the polarity of the second magnetic pole portion to be the same. The controller is also used to control the polarity of the first magnetic pole portion and the second magnetic pole portion of the first magnetic pole in the second magnetic pole group to be the same, the polarity of the first magnetic pole portion of two adjacent first magnetic poles in the second magnetic pole group to be different, and the polarity of the second magnetic pole portion to be different, so as to realize the eddy current braking function.

3. The eddy current braking electromagnet module with guiding function according to claim 2, characterized in that, In the first magnetic pole group, the first magnetic pole portion and the second magnetic pole portion of the first magnetic pole are connected together, and along the first direction, the first magnetic poles in the first magnetic pole group are connected in series. In the second magnetic pole group, along the first direction, the first magnetic pole portion of the i-th first magnetic pole in the second magnetic pole group is connected to the second magnetic pole portion of the (i+1)-th first magnetic pole, and the second magnetic pole portion of the i-th first magnetic pole is connected to the first magnetic pole portion of the (i+1)-th first magnetic pole, where i is an integer greater than or equal to 1.

4. The eddy current braking electromagnet module with guiding function according to claim 3, characterized in that, The plurality of first magnetic poles includes one group of first magnetic pole groups and one group of second magnetic pole groups; Along the first direction, at least one first magnetic pole in the first magnetic pole group is located on one side of the second magnetic pole group, and at least one first magnetic pole in the first magnetic pole group is located on the other side of the second magnetic pole group.

5. The eddy current braking electromagnet module with guiding function according to claim 3, characterized in that, The controller includes a first controller, a second controller, and a third controller; The first controller is connected to the first magnetic pole portion of the first magnetic pole in the first magnetic pole group along the first direction to control the polarity of the first magnetic pole portion and the second magnetic pole portion of the first magnetic pole in the first magnetic pole group; The second controller is connected to the first magnetic pole portion of the first magnetic pole in the second magnetic pole group along the first direction, and the third controller is connected to the second magnetic pole portion of the first magnetic pole in the second magnetic pole group along the first direction, so as to control the polarity of the first magnetic pole portion and the second magnetic pole portion of the first magnetic pole in the second magnetic pole group.

6. The eddy current braking electromagnet module with guiding function according to claim 5, characterized in that, The first controller, the second controller, and the third controller all include a bidirectional chopper circuit; The bidirectional chopper circuit is used to control the polarity of the first magnetic pole section and the second magnetic pole section.

7. The eddy current braking electromagnet module with guiding function according to claim 1, characterized in that, Both the first magnetic pole portion and the second magnetic pole portion include a first iron core and a first coil wound around the first iron core. The extending direction of the first iron core is perpendicular to the plane containing the first direction and the second direction, and the winding direction of the first coil is parallel to the plane containing the first direction and the second direction.

8. A guiding and braking system for a conventional magnetic levitation vehicle, characterized in that, The guiding braking system includes X pairs of electromagnet modules, where X is an integer greater than or equal to 1. Each pair of electromagnet modules is arranged sequentially along the travel direction of the conventional magnetic levitation vehicle, and each electromagnet module in each pair is respectively arranged on opposite sides of the vehicle body. Wherein, the X pairs of electromagnet modules include at least one pair of first electromagnet modules, wherein the first electromagnet module is an eddy current braking electromagnet module with guiding function as described in any one of claims 1-7.

9. The guiding and braking system for a conventional magnetic levitation vehicle according to claim 8, characterized in that, The X-pair of electromagnet modules also includes at least one pair of second electromagnet modules, which are guide and support electromagnet modules and are located on at least one side of the first electromagnet module along the travel direction of the conventional magnetic levitation vehicle. The second electromagnet module includes a second magnetic pole, the second magnetic pole including a second iron core and a second coil wound on the second iron core, the second iron core extending along the second direction.

10. The guiding and braking system for a conventional magnetic levitation vehicle according to claim 9, characterized in that, Along the direction of travel of the conventional magnetic levitation vehicle, the first electromagnet module and the second electromagnet module are arranged at intervals.

11. The guiding and braking system for a conventional magnetic levitation vehicle according to claim 10, characterized in that, The X pairs of electromagnet modules include at least two pairs of the second electromagnet modules; Along the direction of travel of the conventional magnetic levitation vehicle, the first and Nth electromagnet modules in the X pair of electromagnet modules are the second electromagnet modules.

12. A conventional magnetic levitation vehicle, characterized in that, The system includes the guidance and braking system for a conventional magnetic levitation vehicle as described in any one of claims 8-11.

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