CN119446707A - A magnetic pole module, a suspension electromagnet module and a magnetic levitation vehicle - Google Patents

Abstract

The present application discloses a magnetic pole module, a suspension electromagnet module and a maglev vehicle, and relates to the technical field of maglev vehicles. The magnetic pole module includes an iron core, a double-layer winding, an insulating heat-conducting block, an insulating heat-conducting plate and a cooling pipe. The iron core is provided with a groove, the double-layer winding is wound on the iron core, the insulating heat-conducting block is embedded in the groove, the insulating heat-conducting block is provided with a receiving groove, the insulating heat-conducting plate is arranged between the double-layer winding, the insulating heat-conducting plate is connected to the insulating heat-conducting block, at least part of the structure of the cooling pipe is accommodated in the receiving groove, and the cooling pipe is used to pass a cooling medium to cool the heat generated by the double-layer winding and transferred to the cooling pipe through the insulating heat-conducting plate and the insulating heat-conducting block. The above-mentioned setting method solves the problems of poor heat dissipation performance and limited improvement of carrying capacity of the traditional magnetic pole module and the suspension electromagnet module having the magnetic pole module.

Description

Magnetic pole module, suspension electromagnet module and magnetic levitation vehicle

Technical Field

The application relates to the technical field of magnetic levitation vehicles, in particular to a magnetic pole module, a levitation electromagnet module and a magnetic levitation vehicle.

Background

At present, with further improvement of the speed of a magnetic levitation vehicle, the vertical dynamic load of the vehicle is aggravated, and higher requirements are put on the bearing capacity. Although the levitation electromagnet module of the magnetic levitation vehicle can improve levitation capacity by increasing current, the increased current can cause serious heating and risk of burning.

In the related art, a magnetic pole module of a levitation electromagnet module of a magnetic levitation vehicle adopts a winding structure with aluminum foil and an insulating film alternately, the insulating film has lower heat conductivity coefficient, and the whole winding has poor heat transfer effect and serious heat generation. In addition, the magnetic pole modules of the current suspension electromagnet module are of double-layer winding structures, and in order to ensure an insulation effect, the double-layer winding is easy to cause further deterioration of heat dissipation performance, so that heat in the winding cannot be dissipated in time, and the winding can be overheated very quickly under a high-power condition.

Therefore, how to avoid the poor heat dissipation performance of the magnetic pole module and the suspension electromagnet module with the magnetic pole module is a technical problem that needs to be solved currently by the skilled person.

Disclosure of Invention

The application aims to provide a magnetic pole module, a suspension electromagnet module and a magnetic levitation vehicle, which solve the problem of serious heating of the magnetic pole module.

To achieve the above object, the present application provides a magnetic pole module comprising:

The iron core is provided with a groove;

A double-layer winding wound on the iron core;

The insulating heat conducting block is embedded in the groove and is provided with a containing groove;

the insulating heat conducting plate is arranged between the double-layer windings and connected with the insulating heat conducting block;

And the cooling pipe is accommodated in the accommodating groove, and is used for introducing a cooling medium to cool the heat generated by the double-layer winding and transferred to the cooling pipe through the insulating heat conducting plate and the insulating heat conducting block.

In some embodiments, the insulating heat conducting block is provided with a slot, the insulating heat conducting plate is in an annular structure, and the side arm of the insulating heat conducting plate extends along the inner side direction to form a plug-in part, and the plug-in part is in plug-in fit with the slot, so that the insulating heat conducting plate is connected with the insulating heat conducting block.

In some embodiments, the gaps between the insulating heat conducting block and the groove, the gaps between the cooling pipe and the accommodating groove, and the gaps between the plug-in part and the slot are filled with heat conducting layers.

In some embodiments, the number of the insulating heat conducting blocks is two, and the two insulating heat conducting blocks are respectively embedded in the grooves on two sides of the iron core;

The cooling pipe comprises two coil pipe bodies, wherein the two coil pipe bodies are S-shaped, and the two coil pipe bodies are respectively accommodated in the accommodating grooves of the two insulating heat conducting blocks.

In some embodiments, the cooling tube further comprises a liquid inlet tube, a liquid outlet tube and a connecting tube assembly, wherein the liquid inlet tube and the liquid outlet tube are respectively connected with the coil pipe bodies on two sides, and the connecting tube assembly is used for connecting the coil pipe bodies on two sides.

In some embodiments, the insulating heat conducting plate and the insulating heat conducting block each comprise a substrate and at least three insulating heat conducting layers provided on the substrate;

And insulating paper is arranged between the double-layer winding and the iron core.

In some embodiments, the double layer winding comprises a first layer winding and a second layer winding, the first layer winding and the second layer winding being connected in series by a connector;

The connecting piece cup joints in the periphery of iron core, the connecting piece includes interconnect's first layer connection structure and second floor connection structure, first layer connection structure is located second floor connection structure's top, first layer connection structure with the first end of second floor connection structure is integrative to link to each other, first layer connection structure with the second end interconnect of second floor connection structure both, just first layer connection structure's second end is equipped with and is used for supplying first layer winding connected first junction point, second layer connection structure's second end is equipped with and is used for supplying second layer winding connected second junction point, first layer winding is followed first junction point begins along first direction coiling in first layer connection structure's outside, second layer winding begins along the second direction coiling in second layer connection structure's outside, first direction is followed second junction point is the opposite direction with both second directions.

The application also provides a suspension electromagnet module of the magnetic levitation vehicle, which comprises the U-shaped box girder and further comprises any one of the magnetic pole modules, wherein the magnetic pole module is fixed on the U-shaped box girder through a flange plate.

In some embodiments, the pole modules are arranged in two groups, and the levitation electromagnet module further comprises:

The medium storage box is arranged in the U-shaped box beam, is communicated with the cooling pipes of the two groups of magnetic pole modules and is used for storing liquid cooling mediums;

The two circulating pumps are arranged in the U-shaped box girder, one circulating pump is used for providing circulating power so that a cooling medium forms refrigeration circulation between the medium storage box and one group of magnetic pole modules, and the other circulating pump is used for providing circulating power so that the cooling medium forms refrigeration circulation between the medium storage box and the other group of magnetic pole modules;

and the radiating fin is arranged on the outer side wall of the U-shaped box girder and is used for radiating the cooling medium in the U-shaped box girder.

In some embodiments, the levitation electromagnet module further comprises:

the temperature detection module is arranged in the U-shaped box girder and is used for detecting the temperature in the U-shaped box girder;

And the control module is in communication connection with the temperature detection module and the circulating pump and is used for controlling the circulating pump to be opened and closed according to the temperature value detected by the temperature detection module.

The application also provides a magnetic levitation vehicle, which comprises the levitation electromagnet module.

Compared with the background art, the magnetic pole module provided by the embodiment of the application comprises an iron core, a double-layer winding, an insulating heat conducting block, an insulating heat conducting plate and a cooling pipe. Wherein, the iron core is equipped with the recess, and double-deck winding winds on the iron core, and insulating heat conduction piece inlays in the recess, and insulating heat conduction piece is equipped with the accommodation groove, and insulating heat conduction board is located between the double-deck winding, and insulating heat conduction board is connected with insulating heat conduction piece, and the at least partial structure holding of cooling tube is arranged in the accommodation groove, and the cooling tube is used for letting in cooling medium to produce by double-deck winding and through insulating heat conduction board and insulating heat conduction piece transfer to the heat of cooling tube and cool off.

It can be seen that the heat generated by the double-layer winding can be transferred to the insulating heat-conducting plate and then to the cooling pipe through the insulating heat-conducting block, and can also be directly transferred to the cooling pipe through the insulating heat-conducting block, so that the cooling medium in the cooling pipe can forcedly conduct heat for convection, the heat resistance of the heat dissipation path is smaller, the heat transfer efficiency is high, and the heat dissipation effect is good.

The magnetic pole module that so set up, its beneficial effect mainly includes: compared with the traditional magnetic pole module which is influenced by materials with lower heat conductivity such as an internal insulating film, resin and the like, the heat conduction capacity is lower, and heat generated in the windings under large bearing can not be timely dissipated, so that the magnetic pole windings are seriously heated and even damaged, the magnetic pole module provided by the embodiment of the application increases the heat dissipation path by optimizing the internal structure of the magnetic pole, particularly by increasing the insulating heat conducting blocks and the insulating heat conducting plates, the heat resistance of the heat generated by the double-layer winding in the transfer process is greatly reduced, the heat conduction capacity of the winding is improved, the heat is dissipated by adopting the convection heat dissipation of a cooling medium through adding a cooling pipe, the heat dissipation effect is obviously enhanced, and the problems that the heat dissipation performance of the traditional magnetic pole module and the suspension electromagnet module with the magnetic pole module is poor and the bearing capacity is limited are solved.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the related art, the drawings that are required to be used in the embodiments or the related technical descriptions will be briefly described, and it is apparent that the drawings in the following description are only embodiments of the present application, and other drawings may be obtained according to the provided drawings without inventive effort for those skilled in the art.

FIG. 1 is a schematic view of a pole module according to an embodiment of the present application;

FIG. 2 is a cross-sectional view of the pole module shown in FIG. 1;

FIG. 3 is a schematic diagram of a heat dissipation path of the pole module shown in FIG. 2;

FIG. 4 is a schematic diagram illustrating the assembly of the insulated heat conducting block and the core of the pole module of FIG. 1;

FIG. 5 is a schematic view of an assembly of an insulated heat conducting plate and an insulated heat conducting block in the pole module of FIG. 1;

FIG. 6 is a schematic diagram of the arrangement of cooling tubes in the pole module of FIG. 1;

FIG. 7 is a schematic diagram of a double layer winding in the pole module of FIG. 1;

FIG. 8 is a schematic view of the structure of the connection member in the double-layer winding shown in FIG. 7;

FIG. 9 is a schematic view of the winding direction of the first layer winding and the second layer winding of the double layer winding shown in FIG. 7;

FIG. 10 is a schematic diagram of a first levitation electromagnet module according to an embodiment of the present application;

FIG. 11 is a schematic layout of heat sinks in the first levitation electromagnet module of FIG. 10;

fig. 12 is a schematic structural diagram of a second suspension electromagnet module according to an embodiment of the present application.

Wherein:

10-magnetic pole modules, 11-iron cores, 111-grooves, 12-double-layer windings, 121-first-layer windings, 122-second-layer windings, 13-insulating heat conducting blocks, 131-accommodating grooves, 132-inserting grooves, 14-insulating heat conducting plates, 141-inserting parts, 15-cooling pipes, 151-coil pipe bodies, 152-liquid inlet pipes, 153-liquid outlet pipes, 16-insulating paper, 17-connecting pieces, 171-first-layer connecting structures, 1711-first connecting points, 172-second-layer connecting structures, 1721-second connecting points, 18-flange plates, 19-linear generator coils and 110-linear generator leads;

20-U-shaped box girders;

30-a media storage bin;

40-a circulation pump;

50-cooling fins;

60-a water diversion pipe;

70-refrigeration equipment.

Detailed Description

The following description of the embodiments of the present application will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present application, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

The present application will be further described in detail below with reference to the drawings and detailed description for the purpose of enabling those skilled in the art to better understand the aspects of the present application.

The terms "upper end, lower end, left side, right side" and the like are defined based on the drawings of the specification.

Referring to fig. 1 to 12, fig. 1 is a schematic structural view of a magnetic pole module in an embodiment of the present application, fig. 2 is a cross-sectional view of the magnetic pole module in fig. 1, fig. 3 is a schematic heat dissipation path of the magnetic pole module in fig. 2, fig. 4 is an assembled schematic view of an insulating heat conducting block and an iron core in the magnetic pole module in fig. 1, fig. 5 is an assembled schematic view of an insulating heat conducting plate and an insulating heat conducting block in the magnetic pole module in fig. 1, fig. 6 is a schematic layout view of a cooling tube in the magnetic pole module in fig. 1, fig. 7 is a schematic structural view of a double-layer winding in the magnetic pole module in fig. 1, fig. 8 is a schematic structural view of a connecting piece in the double-layer winding in fig. 7, fig. 9 is a schematic structural view of a first-layer winding and a second-layer winding in the double-layer winding in fig. 7, fig. 10 is a schematic structural view of a first-layer suspension electromagnet module in the embodiment of the present application, fig. 11 is a layout view of a heat dissipation sheet in the first-type suspension electromagnet module in the embodiment of the present application, and fig. 12 is a schematic structural view of a second suspension electromagnet module in the embodiment of the present application.

The magnetic pole module 10 provided by the embodiment of the application comprises an iron core 11, a double-layer winding 12, an insulating heat conducting block 13, an insulating heat conducting plate 14 and a cooling pipe 15.

Wherein, the iron core 11 is provided with a groove 111, the double-layer winding 12 is wound on the iron core 11, the insulating heat conducting block 13 is embedded in the groove 111, the insulating heat conducting block 13 is provided with a containing groove 131, the insulating heat conducting plate 14 is arranged between the double-layer winding 12, the insulating heat conducting plate 14 is used for replacing insulating paper arranged between the double-layer winding 12 before, the thickness of the insulating heat conducting plate 14 is 1 mm-2 mm, the insulating heat conducting plate 14 is connected with the insulating heat conducting block 13, at least part of the structure of the cooling pipe 15 is contained in the containing groove 131, and the cooling pipe 15 is used for introducing cooling medium so as to cool heat generated by the double-layer winding 12 and transferred to the cooling pipe 15 through the insulating heat conducting plate 14 and the insulating heat conducting block 13.

It can be seen that the heat generated by the double-layer winding 12 can be transferred to the insulating heat-conducting plate 14, then transferred to the cooling tube 15 through the insulating heat-conducting block 13, and also can be directly transferred to the cooling tube 15 through the insulating heat-conducting block 13, so that the cooling medium in the cooling tube 15 can forcedly perform convection heat dissipation, and the heat dissipation path has smaller heat resistance, high heat transfer efficiency and good heat dissipation effect.

It should be noted that the heat dissipation path of the original magnetic pole structure includes a first path and a second path, wherein the first path is epoxy resin (epoxy resin encapsulated outside the magnetic pole module 10) for transferring heat inside the winding to the outer surface along the transverse direction, and the second path is for transferring heat to the iron core 11 along the transverse direction, and then transferring heat to the U-shaped box girder 20 via the flange 18, and dissipating heat via the running wind. The heat of two paths needs to be transferred transversely in the windings, the epoxy resin outside the iron core 11 and the double-layer winding 12 has larger thermal resistance, meanwhile, a layer of high-performance insulating paper is placed between the double-layer winding 12, and a good insulating effect is achieved by filling gaps with resin, however, the heat conductivity of the resin and the insulating paper is lower, the thermal resistance is larger, the heat dissipation performance is poor, the heat inside the winding cannot be dissipated in time, the heat transfer efficiency is very low, the heat dissipation effect is poor, and the heat can be quickly overheated under high-power conditions.

Compared with the conventional arrangement, the heat dissipation path of the magnetic pole module 10 provided in the embodiment of the application is the same as the original magnetic pole (i.e. the heat inside the winding is transferred to the epoxy resin on the outer surface along the transverse direction and is dissipated by the running wind), while the heat of the double-layer winding 12 is changed as shown in fig. 3, and the heat of the double-layer winding 12 is transferred from the point a to the insulating heat conducting plate 14, then to the insulating heat conducting block 13, then to the cooling tube 15, and is forced to dissipate by the cooling medium.

It should be emphasized that the second path has a vertical heat dissipation path, and the heat resistance of the entire path is greatly reduced and the heat dissipation effect is obviously enhanced through the insulating heat conducting plate 14 in the transmission process.

In this way, the magnetic pole module 10 provided in the embodiment of the present application increases the heat dissipation path by optimizing the internal structure of the magnetic pole, specifically by adding the insulating heat conducting block 13 and the insulating heat conducting plate 14, so that the thermal resistance of the heat generated by the double-layer winding 12 in the transmission process is greatly reduced, the heat conducting capacity of the winding is improved, and by adding the cooling pipe 15, the heat is dissipated by adopting the convective heat dissipation of the cooling medium, the heat dissipation effect is obviously enhanced, and the problems of poor heat dissipation performance and limited bearing capacity improvement of the conventional magnetic pole module 10 and the suspension electromagnet module with the magnetic pole module 10 are solved.

In order to facilitate connection between the insulating heat conducting block 13 and the insulating heat conducting block 13, the insulating heat conducting block 13 is provided with a slot 132, the insulating heat conducting plate 14 is in an annular structure, and the side arms of the insulating heat conducting plate 14 extend along the inner side direction to form a plug-in part 141, and the plug-in part 141 is in plug-in fit with the slot 132, so that the insulating heat conducting plate 14 is connected to the insulating heat conducting block 13.

The slot 132 may be an elongated slot, and the length of the slot 132 should be smaller than the length of the insulating heat conducting block 13, so that the insulating heat conducting block 13 reserves an elongated slot, and the insulating heat conducting plate 14 is inserted into the elongated slot reserved by the insulating heat conducting block 13 through the inserting portion 141, thereby ensuring the connection stability of the insulating heat conducting block 13 and the insulating heat conducting block 13.

The insulating and heat conducting plate 14 is in a rectangular annular structure, and the insulating and heat conducting plate 14 can be formed by splicing two parts, so that the insulating and heat conducting plate 14 is arranged along the peripheral direction of the iron core 11, and the heat conducting efficiency of the double-layer winding 12 can be greatly improved.

In order to improve the heat transfer efficiency, the gaps between the insulating heat conducting block 13 and the groove 111, the gaps between the cooling pipe 15 and the accommodating groove 131, and the gaps between the plug-in portion 141 and the slot 132 are filled with heat conducting layers, which may be high heat conducting silicone grease layers, so that the heat transfer efficiency is greatly improved by ensuring sufficient contact between the components.

In some embodiments, the number of the insulating and heat conducting blocks 13 is two, and correspondingly, grooves 111 are formed on two sides of the iron core 11, and the two insulating and heat conducting blocks 13 are respectively embedded in the grooves 111 on two sides of the iron core 11.

Specifically, in view of the relatively large amount of heat in the length direction of the double-layer winding 12, grooves 111 are provided on both side walls in the length direction of the core 11, and two insulating and heat-conducting blocks 13 are fitted into the two grooves 111, respectively.

It should be noted that, for convenience of insulation treatment to the ground and winding, it is necessary to ensure that the surface of the iron core 11 is a flat surface, and the thickness of the insulating heat conducting block 13 should be as same as the depth of the corresponding groove 111 as possible, so that when the insulating heat conducting block 13 is embedded in the corresponding groove 111, the surface of the iron core 11 can be ensured to be a flat surface, and thus, insulation reliability can be improved.

Accordingly, the cooling tube 15 includes two coil bodies 151, and the two coil bodies 151 are S-shaped or have a multi-segment continuous S-shaped structure, so that the contact area between the cooling tube 15 and the insulating heat conducting block 13 can be increased, thereby improving the heat dissipation efficiency.

The two coil bodies 151 are respectively accommodated in the accommodating grooves 131 of the two insulating heat conducting blocks 13, and the structures of the accommodating grooves 131 are matched with the structures of the corresponding coil bodies 151.

Of course, according to actual need, cooling tube 15 can be the copper pipe, and the copper pipe passes through professional equipment bending coiling shaping, and in the space that insulating heat conduction piece 13 reserved was blocked afterwards, realize the integration through interference fit between cooling tube 15 and the insulating heat conduction piece 13 two, the high heat conduction silicone grease is filled in other gaps, guarantees both to contact completely on the one hand, improves heat transfer ability, and on the other hand insulating heat conduction piece 13 can play the effect of protection copper pipe, avoids its installation period to take place to warp.

In addition, the cooling tube 15 is led out through an external copper tube, which is led out through a groove body at the bottom of the iron core 11, opposite to the linear generator lead 110. The four external copper tubes can be arranged, and can be reserved as two-in and two-out, or the left and right coil bodies 151 can be connected through welding or screwed joints, and reserved as one-in and one-out.

In some embodiments, the cooling tube 15 further includes a liquid inlet tube 152, a liquid outlet tube 153, and a connection tube assembly, wherein the liquid inlet tube 152 and the liquid outlet tube 153 are respectively connected with the coil body 151 at two sides, and the connection tube assembly is used for connecting the coil body 151 at two sides.

In this way, the liquid inlet pipe 152 is used to introduce the cooling medium into one of the coil bodies 151, the cooling medium flows through the two coil bodies 151 by the connection pipe assembly, thereby carrying away the heat transferred to the cooling pipe 15, and the liquid outlet pipe 153 is used to discharge the cooling medium after heat exchange outside the cooling pipe 15. Of course, both the liquid inlet pipe 152 and the liquid outlet pipe 153 can be external copper pipes.

Of course, a refrigeration cycle system can be connected between the two coil bodies 151, and different types of heat dissipation media, such as nitrogen, freon, oil, etc., can be optionally filled in the pipeline, so that the circulation flow of the cooling medium can be formed, the heat transferred to the cooling pipe 15 can be taken away by the circulation flow of the cooling medium, that is, the heat of the winding transferred by the insulating heat conducting plate 14 is dissipated, thereby reducing the internal temperature of the magnetic pole and greatly improving the heat dissipation efficiency.

In some embodiments, each of the insulating heat conducting plate 14 and the insulating heat conducting block 13 includes a base and at least three insulating heat conducting layers provided on the base. The insulating and heat conducting layer can be made of high heat conducting insulating material.

Taking the insulating heat-conducting plate 14 as an example, spraying special high-heat-conductivity insulating material boron nitride on the surface of the substrate, spraying at high temperature and high pressure environment, at least three times of spraying, standing and airing after each spraying is completed, and then spraying the next time. And a special tool is designed aiming at a sprayed sample, so that uniform and complete spraying is ensured, the overall thickness of a coating is smaller than 80 mu m, and the direct-current compressive strength is more than 4kV. Or adopting a mode of bonding a special high-heat-conductivity insulating material boron nitride film, firstly pressing the boron nitride film into a film material at high temperature and high pressure, and then directly bonding the boron nitride film to a substrate. Of course, the outer surface of the insulating heat conducting block 13 is insulated in the same manner as the insulating heat conducting plate 14.

The insulating and heat conducting plate 14 can be made of copper plate, and of course, the copper plate can be replaced by other materials with excellent heat conducting performance, such as aluminum plate, steel plate and the like.

In this way, the insulating paper 16 is not placed between the double-layer windings 12, but a layer of copper plate sprayed with insulating heat conducting materials, so that a higher pressure-resistant effect can be achieved, and heat generated by the upper-layer windings and the lower-layer windings can be transversely transferred to the position of the iron core 11.

To ensure the compressive strength of the double-layer winding 12 to the ground, insulating paper 16 is provided between the double-layer winding 12 and the core 11.

In order to further improve the heat dissipation efficiency, the whole magnetic pole module 10 is encapsulated by epoxy resin, and gaps among all components in the whole magnetic pole module 10 are filled by the epoxy resin, so that the heat transfer efficiency is further improved.

In addition, the top of the iron core 11 is slotted, a linear generator coil 19 is arranged, the linear generator coil 19 is led out through a linear generator lead 110, the linear generator coil 19 realizes non-contact power generation by magnetic flux alternation in the vehicle movement process, and the linear generator lead 110 is led out through a slot body at the bottom of the iron core 11.

In some embodiments, the double layer winding 12 includes a first layer winding 121 and a second layer winding 122, the first layer winding 121 and the second layer winding 122 being connected in series by a connection 17.

The connecting piece 17 is sleeved on the periphery of the iron core 11, the connecting piece 17 comprises a first layer connecting structure 171 and a second layer connecting structure 172 which are connected with each other, the first layer connecting structure 171 is located above the second layer connecting structure 172, first ends of the first layer connecting structure 171 and the second layer connecting structure 172 are integrally connected, second ends of the first layer connecting structure 171 and the second layer connecting structure 172 are connected with each other, a first connecting point 1711 for connecting the first layer winding 121 is arranged at the second end of the first layer connecting structure 171, a second connecting point 1721 for connecting the second layer winding 122 is arranged at the second end of the second layer connecting structure 172, the first layer winding 121 is wound on the outer side of the first layer connecting structure 171 from the first connecting point 1711 along the first direction, the second layer winding 122 is wound on the outer side of the second layer connecting structure 172 along the second direction from the second connecting point 1721, and the first direction and the second direction are opposite.

In some embodiments, the connection member 17 is extended to form a zigzag shape, the zigzag connection member 17 is bent to form a through hole for nesting the core 11, the structure of the through hole is adapted to the structure of the core 11, the first layer winding 121 is welded to the first connection point 1711 by ultrasonic waves and wound on the outer side of the first layer connection structure 171 in the counterclockwise direction, and the second layer winding 122 is welded to the second connection point 1721 by ultrasonic waves and wound on the outer side of the second layer connection structure 172 in the clockwise direction.

More specifically, the winding is formed by alternating aluminum foil and insulating film, namely one layer of insulating film and one layer of aluminum foil, so that the filling rate of a winding window can be improved, the number of turns of the winding is increased, the magnetic pole performance is improved, the width of the insulating film is slightly higher than that of the aluminum foil, and the single side is 1-1.5 mm longer than that of the aluminum foil, so that the insulation reliability is ensured. The winding is of an upper and lower double-layer structure, and the upper and lower double-layer structure can improve the filling rate of the aluminum foil and has higher heat conducting property under the condition of ensuring the number of turns. The upper and lower double-layer aluminum foils are connected in series through the connecting piece 17, the upper layer winding is wound outwards from the first connecting point 1711 of the connecting piece 17, and the lower layer winding is wound outwards (opposite to the upper layer winding) from the second connecting point 1721 of the connecting piece 17, so that the power supply connector of the whole winding is ensured to be positioned outside the winding, the connector welding is convenient, and the safety is improved (two connectors of a single-layer winding are provided, one connector is positioned inside the winding and is close to the iron core 11, and insulating paper 16 is easy to burn).

The suspension electromagnet module of the magnetic levitation vehicle provided by the application comprises the U-shaped box girder 20 and the magnetic pole module 10 described in the specific embodiment, wherein the magnetic pole module 10 is fixed on the U-shaped box girder 20 through the flange plate 18.

In some embodiments, the pole modules 10 are provided with two groups, the suspension electromagnet module further comprises a medium storage tank 30 and two circulating pumps 40, wherein the medium storage tank 30 is arranged in the U-shaped tank beam 20 and is communicated with the cooling pipes 15 of the two groups of pole modules 10, the medium storage tank 30 is used for storing liquid cooling mediums, the two circulating pumps 40 are arranged in the U-shaped tank beam 20, one circulating pump 40 is used for providing circulating power so that the cooling mediums form refrigeration circulation between the medium storage tank 30 and one group of pole modules 10, and the other circulating pump 40 is used for providing circulating power so that the cooling mediums form refrigeration circulation between the medium storage tank 30 and the other group of pole modules 10.

In this embodiment, the refrigerating system is integrated inside the U-shaped box girder 20, copper pipes are fixed inside the U-shaped box girder 20, external copper pipes (water inlet and water outlet) of the magnetic pole module 10 are connected to the water diversion pipe 60, the water diversion pipe 60 is connected to the circulation pump 40, and the transmission of the cooling medium can be realized under the action of the circulation power of the circulation pump 40.

In addition, a plurality of cooling fins 50 are arranged on the outer side of the U-shaped box girder 20, and the cooling medium is cooled by the running wind through the cooling fins 50, so that the running wind is utilized, an additional cooling fan is not needed, and energy is saved.

In some embodiments, the refrigeration device 70 is external, in which the water diversion pipe 60 is directly connected to the external refrigeration device 70, and the refrigeration device 70 itself includes a circulation pump and a cooling fan, which has a simple structure, but requires an additional cooling fan, and the refrigeration device 70 needs to be external.

In order to realize automatic control, the suspension electromagnet module further comprises a temperature detection module and a control module. Wherein, temperature detection module locates in the U type case roof beam 20, and temperature detection module is used for detecting the inside temperature of U type case roof beam 20, and control module links to each other with temperature detection module and circulating pump 40 communication, and control module is used for controlling circulating pump 40 switching according to the temperature value that temperature detection module detected.

Through setting up temperature detection module in U type case roof beam 20, can the inside temperature variation of real-time supervision case roof beam to ensure the safety and the stability of electro-magnet structure, control module is according to the switching of temperature value control circulating pump 40 that temperature detection module detected, can adjust cooling system's operation according to actual temperature demand like this, improves energy efficiency and cost-effectiveness. The temperature detection module and the control module are in communication connection, so that automatic control can be realized, manual intervention is reduced, and convenience and accuracy of operation are improved.

The application also provides a magnetic levitation vehicle, which comprises the levitation electromagnet module described in the embodiment.

It should be noted that in this specification relational terms such as first and second are used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities.

The magnetic pole module, the levitation electromagnet module and the magnetic levitation vehicle provided by the application are described in detail above. The principles and embodiments of the present application have been described herein with reference to specific examples, the description of which is intended only to facilitate an understanding of the inventive arrangements and their core ideas. It should be noted that it will be apparent to those skilled in the art that the present application may be modified and practiced without departing from the spirit of the present application.

Claims (11)

1. A pole module, comprising:

The iron core is provided with a groove;

A double-layer winding wound on the iron core;

The insulating heat conducting block is embedded in the groove and is provided with a containing groove;

the insulating heat conducting plate is arranged between the double-layer windings and connected with the insulating heat conducting block;

And the cooling pipe is accommodated in the accommodating groove, and is used for introducing a cooling medium to cool the heat generated by the double-layer winding and transferred to the cooling pipe through the insulating heat conducting plate and the insulating heat conducting block.

2. The pole module of claim 1, wherein the insulating heat conducting block is provided with a slot, the insulating heat conducting plate is in a ring structure, and a side arm of the insulating heat conducting plate extends along an inner side direction to form a plug-in part, and the plug-in part is in plug-in fit with the slot so that the insulating heat conducting plate is connected with the insulating heat conducting block.

3. The pole module of claim 2, wherein the gaps between the insulating heat conducting block and the groove, the cooling tube and the receiving groove, and the plug portion and the slot are filled with a heat conducting layer.

4. The pole module of claim 1, wherein the number of the insulating and heat conducting blocks is two, and the two insulating and heat conducting blocks are respectively embedded in the grooves on two sides of the iron core;

The cooling pipe comprises two coil pipe bodies, wherein the two coil pipe bodies are S-shaped, and the two coil pipe bodies are respectively accommodated in the accommodating grooves of the two insulating heat conducting blocks.

5. The pole module of claim 4, wherein the cooling tube further comprises a liquid inlet tube, a liquid outlet tube, and a connecting tube assembly, the liquid inlet tube and the liquid outlet tube being respectively connected to the coil bodies on both sides, the connecting tube assembly being for connecting the coil bodies on both sides.

6. The pole module of claim 1, wherein the insulating heat conducting plate and the insulating heat conducting block each comprise a base and at least three insulating heat conducting layers disposed on the base;

And insulating paper is arranged between the double-layer winding and the iron core.

7. The pole module of any of claims 1-6, wherein the double layer winding comprises a first layer winding and a second layer winding, the first layer winding and the second layer winding being connected in series by a connector;

The connecting piece cup joints in the periphery of iron core, the connecting piece includes interconnect's first layer connection structure and second floor connection structure, first layer connection structure is located second floor connection structure's top, first layer connection structure with the first end of second floor connection structure is integrative to link to each other, first layer connection structure with the second end interconnect of second floor connection structure both, just first layer connection structure's second end is equipped with and is used for supplying first layer winding connected first junction point, second layer connection structure's second end is equipped with and is used for supplying second layer winding connected second junction point, first layer winding is followed first junction point begins along first direction coiling in first layer connection structure's outside, second layer winding begins along the second direction coiling in second layer connection structure's outside, first direction is followed second junction point is the opposite direction with both second directions.

8. A levitation electromagnet module of a magnetic levitation vehicle, comprising a U-shaped box girder, and further comprising a magnetic pole module according to any of claims 1-7, wherein the magnetic pole module is fixed to the U-shaped box girder by a flange.

9. The levitation electromagnet module of claim 8, wherein the pole modules are provided in two groups, the levitation electromagnet module further comprising:

The medium storage box is arranged in the U-shaped box beam, is communicated with the cooling pipes of the two groups of magnetic pole modules and is used for storing liquid cooling mediums;

The two circulating pumps are arranged in the U-shaped box girder, one circulating pump is used for providing circulating power so that a cooling medium forms refrigeration circulation between the medium storage box and one group of magnetic pole modules, and the other circulating pump is used for providing circulating power so that the cooling medium forms refrigeration circulation between the medium storage box and the other group of magnetic pole modules;

and the radiating fin is arranged on the outer side wall of the U-shaped box girder and is used for radiating the cooling medium in the U-shaped box girder.

10. The levitation electromagnet module of claim 9, wherein the levitation electromagnet module further comprises:

the temperature detection module is arranged in the U-shaped box girder and is used for detecting the temperature in the U-shaped box girder;

And the control module is in communication connection with the temperature detection module and the circulating pump and is used for controlling the circulating pump to be opened and closed according to the temperature value detected by the temperature detection module.

11. A magnetic levitation vehicle comprising a levitation electromagnet module as defined in any of claims 8-10.