Power supply device and transport system

Abstract

The embodiment of the utility model provides a power supply device and a transportation system, and belongs to the technical field of power supplies, the power supply device comprises a first magnetic core, a second magnetic core, a winding and an alternating current cable, the winding sleeves the first magnetic core, the first magnetic core is provided with a first magnetic column and a second magnetic column, and a through groove is formed between the first magnetic column and the second magnetic column; the AC cable passes through the through groove along a preset direction. The first magnetic core moves in the preset direction relative to the alternating current cable, in the moving process of the first magnetic core in the preset direction, the part, with the vertical projection, of the alternating current cable on the first magnetic column forms a first corresponding part, the second magnetic core corresponding to the first corresponding part forms a second corresponding part, and the first corresponding part is located in the through groove. The second corresponding part is located on the side, away from the groove bottom wall of the through groove, of the first corresponding part, and the side, facing the first corresponding part, of the second corresponding part is located in the through groove. Therefore, according to the power supply device and the transportation system provided by the embodiment of the invention, the coupling effect between the winding and the alternating current cable can be improved.

Description

Technical Field

[0001] The present application relates to the field of power supply technology, and in particular to a power supply device and a transportation system. Background Art

[0002] An Automated Guided Vehicle (AGV) is an unmanned automated vehicle that has an electromagnetic, photoelectric or rail-based automatic guidance structure, can travel along a predetermined path, is powered by batteries, and is equipped with safety protection and various transfer functions. When an AGV is powered by batteries, it needs to be charged regularly, resulting in low utilization and high maintenance costs. In a transportation system that uses metal tracks as an automatic guidance structure, a sliding contact direct power supply solution can be used to improve the utilization of the AGV and reduce maintenance costs. However, the sliding contact direct power supply solution has problems such as dust, electric sparks, and low safety.

[0003] In the related technologies, the wireless power supply solution has the advantages of no dust, no electric sparks and high safety. The transportation system may include a metal track, an automatic guided vehicle, an AC cable and a wireless power supply. The automatic guided vehicle moves along the metal track, and the wireless power supply is arranged on the automatic guided vehicle and electrically connected to the automatic guided vehicle. The AC cable can be laid along the extension direction of the metal track, and the AC cable is coupled with the wireless power supply to achieve wireless energy transmission.

[0004] However, the coupling effect between the above wireless power supply and the cable is poor. Utility Model Content

[0005] In view of at least one of the above technical problems, an embodiment of the present application provides a power supply device and a transportation system, which can improve the coupling effect between the winding and the AC cable, thereby increasing the output power of the power supply device.

[0006] The embodiments of the present application provide the following technical solutions:

[0007] The first aspect of the embodiment of the present application provides a power supply device including a first magnetic core, a second magnetic core, a winding and an AC cable, the winding is sleeved on the first magnetic core, the first magnetic core has a first magnetic column and a second magnetic column, a through slot is formed between the first magnetic column and the second magnetic column, and the AC cable is passed through the through slot along a preset direction. The first magnetic core moves along a preset direction relative to the AC cable, and during the movement of the first magnetic core along the preset direction, a portion of the AC cable having a vertical projection on the first magnetic column forms a first corresponding portion, and the second magnetic core corresponding to the first corresponding portion forms a second corresponding portion, the first corresponding portion is located in the through slot, the second corresponding portion is located on the side of the first corresponding portion away from the bottom wall of the through slot, and the second corresponding portion is located in the through slot toward the side of the first corresponding portion.

[0008] The power supply device provided in the embodiment of the present application may include a first magnetic core, a second magnetic core, a winding and an AC cable, the winding may be sleeved on the first magnetic core, the first magnetic core may have a first magnetic column and a second magnetic column, a through slot may be formed between the first magnetic column and the second magnetic column, and the AC cable may be passed through the through slot along a preset direction. The first magnetic core moves along a preset direction relative to the AC cable, and during the movement of the first magnetic core along the preset direction, a portion of the AC cable having a vertical projection on the first magnetic column forms a first corresponding portion, and the second magnetic core corresponding to the first corresponding portion forms a second corresponding portion, the first corresponding portion is located in the through slot, the second corresponding portion is located on the side of the first corresponding portion away from the bottom wall of the through slot, and the second corresponding portion is located in the through slot toward the side of the first corresponding portion. With such arrangement, during the movement of the first magnetic core along the preset direction, at least part of the second corresponding part can be located in the through slot, and the second corresponding part can improve the closure of the magnetic circuit at the slot of the through slot, and provide a low magnetic resistance passage at the slot of the through slot, thereby reducing the magnetic resistance at the slot of the through slot, thereby reducing the leakage magnetic flux at the slot of the through slot, increasing the magnetic flux in the winding, and relieving the eddy current effect of the leakage magnetic flux on the surrounding metal, thereby improving the coupling effect between the winding and the AC cable, and improving the output power of the power supply device, and also helping to reduce the size of the first magnetic core and reduce the weight of the transportation device provided with the first magnetic core. In addition, the magnetic field interference to the external environment can also be reduced, thereby reducing the safety hazards to the surrounding personnel.

[0009] In a possible implementation manner, during the movement of the first magnetic core along a preset direction, a side of the second corresponding portion facing away from the first corresponding portion is located in the through slot.

[0010] In a possible implementation manner, a plurality of support members are further included, the plurality of support members are arranged at intervals along a preset direction, and a portion of the AC cable and at least a portion of the second magnetic core are arranged on the support members.

[0011] In a possible implementation manner, at least a portion of the support member has a first groove, and the second magnetic core is disposed in the first groove.

[0012] In a possible implementation manner, the second magnetic core includes a first sub-magnetic core, and the first sub-magnetic core is located in the first groove.

[0013] In a possible implementation, the second magnetic core includes a second sub-magnetic core, the first sub-magnetic core is disposed on at least part of two adjacent support members, and the second sub-magnetic core is disposed between at least part of two adjacent support members.

[0014] In a possible implementation, the first sub-core includes a first portion and a second portion arranged along a preset direction. One of the two second sub-cores adjacent to the same first sub-core is an integral structure with the first portion, and the other is an integral structure with the second portion.

[0015] In a possible implementation manner, in the same first sub-core, the first portion and the second portion are in contact, or there is a distance between the first portion and the second portion, and the distance is smaller than a width of the support member along a preset direction.

[0016] In a possible implementation manner, the second magnetic core is a flexible member, and at least one first sub-magnetic core and an adjacent second sub-magnetic core are an integral structure.

[0017] In a possible implementation manner, the second magnetic core includes a third sub-magnetic core, the third sub-magnetic core is cylindrical, and the third sub-magnetic core is sleeved on the outer side of at least part of the supporting member.

[0018] In a possible implementation manner, the AC cable is disposed in the first groove.

[0019] In a possible implementation manner, the support member further has a second groove, and the AC cable is disposed in the second groove.

[0020] In a possible implementation, the second magnetic core includes a plurality of fourth sub-magnetic cores, which are arranged at intervals along a preset direction. An auxiliary part is provided at one end of each fourth sub-magnetic core facing the AC cable, the auxiliary part is connected to the AC cable, and the auxiliary part and the corresponding fourth sub-magnetic core form at least a part of the support. The fourth sub-magnetic core is a hard part.

[0021] The second aspect of an embodiment of the present application provides a transportation system including a transportation device, a track, and the power supply device of the above-mentioned first aspect, the track extends along a preset direction, and each support member of the power supply device is connected to the track at one end of the AC cable facing away from the power supply device. The first magnetic core of the power supply device is arranged on the transportation device, the winding of the power supply device is electrically connected to the transportation device, and the transportation device is movably connected to the track along a preset direction.

[0022] The transportation system provided in the embodiment of the present application includes a power supply device, which may include a first magnetic core, a second magnetic core, a winding and an AC cable. The winding may be sleeved on the first magnetic core, the first magnetic core may have a first magnetic column and a second magnetic column, a through slot may be formed between the first magnetic column and the second magnetic column, and the AC cable may be passed through the through slot along a preset direction. The first magnetic core moves along a preset direction relative to the AC cable. During the movement of the first magnetic core along the preset direction, a portion of the AC cable having a vertical projection on the first magnetic column forms a first corresponding portion, and the second magnetic core corresponding to the first corresponding portion forms a second corresponding portion. The first corresponding portion is located in the through slot, the second corresponding portion is located on the side of the first corresponding portion away from the bottom wall of the through slot, and the second corresponding portion is located in the through slot toward the side of the first corresponding portion. With such arrangement, during the movement of the first magnetic core along the preset direction, at least part of the second corresponding part can be located in the through slot, and the second corresponding part can improve the closure of the magnetic circuit at the slot of the through slot, and provide a low magnetic resistance passage at the slot of the through slot, thereby reducing the magnetic resistance at the slot of the through slot, thereby reducing the leakage magnetic flux at the slot of the through slot, increasing the magnetic flux in the winding, and relieving the eddy current effect of the leakage magnetic flux on the surrounding metal, thereby improving the coupling effect between the winding and the AC cable, and improving the output power of the power supply device, and also helping to reduce the size of the first magnetic core and reduce the weight of the transportation device provided with the first magnetic core. In addition, the magnetic field interference to the external environment can also be reduced, thereby reducing the safety hazards to the surrounding personnel.

[0023] The construction of the present application as well as its other objects and beneficial effects will be more clearly understood through the description of the preferred embodiments in conjunction with the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0025] Figure 1 A partial cross-sectional view of a transport system provided for related art;

[0026] Figure 2 A schematic diagram of a partial structure of a transportation system provided in an embodiment of the present application;

[0027] Figure 3 A partial cross-sectional view of a transportation system provided in an embodiment of the present application;

[0028] Figure 4 A schematic diagram of the structure of the track, support member and AC cable provided in the embodiment of the present application;

[0029] Figure 5 A schematic diagram of the structure of the track, support member, AC cable and second magnetic core provided in an embodiment of the present application;

[0030] Figure 6 Another structural schematic diagram of the track, support member, AC cable and second magnetic core provided in an embodiment of the present application;

[0031] Figure 7 Another structural schematic diagram of the track, support member, AC cable and second magnetic core provided in an embodiment of the present application;

[0032] Figure 8 A cross-sectional view of a support member, an AC cable, and a second magnetic core provided in an embodiment of the present application;

[0033] Fig. 9 Another partial cross-sectional view of the transportation system provided in an embodiment of the present application.

[0034] Description of reference numerals:

[0035] 11: Metal track; 12: Support structure;

[0036] 13: Take the electromagnetic core; 15: Open the mouth;

[0037] 101: track; 102: power supply device;

[0038] 110: a first magnetic core; 111: a first magnetic column;

[0039] 112: second magnetic column; 113: connecting portion;

[0040] 114: through slot; 120: second magnetic core;

[0041] 120b: second corresponding portion; 121: first sub-core;

[0042] 1211: Part 1; 1212: Part 2;

[0043] 122: second sub-core; 123: third sub-core;

[0044] 124: the fourth sub-core; 14 / 130: AC cable;

[0045] 130a: first corresponding portion; 140: supporting member;

[0046] 141: first groove; 142: second groove;

[0047] 143: Auxiliary parts; 150: Connecting parts. DETAILED DESCRIPTION

[0048] In the related art, see Figure 1 The transportation system may include a metal track 11, an automatic guided vehicle (not shown), an AC cable 14 and a wireless power collector, wherein the wireless power collector is arranged on the automatic guided vehicle and is electrically connected to the automatic guided vehicle. The AC cable 14 may be laid along the extension direction of the metal track 11, and the AC cable 14 is coupled with the wireless power collector to achieve wireless energy transmission.

[0049] The wireless power supply may include an electromagnetic core 13 and a power supply winding, the power supply winding is sleeved on the electromagnetic core 13, and the AC cable 14 is passed through the electromagnetic core 13. To ensure the stable operation of the automatic guided vehicle, the AC cable 14 needs to be parallel to the metal track 11. The AC cable 14 and the metal track 11 are connected by a support structure 12, and the support structure 12 allows the AC cable 14 to maintain a certain distance from the metal track 11 to avoid the magnetic field of the AC cable 14 cutting the metal track 11 to generate an eddy current effect, thereby avoiding large eddy current losses.

[0050] However, since the AC cable 14 is connected to the support structure 12, when the electromagnetic core 13 passes through the part of the AC cable 14 connected to the support structure 12, in order to avoid interference between the side of the electromagnetic core 13 facing the AC cable 14 and the support structure 12, an opening 15 needs to be provided on the side of the electromagnetic core 13 facing the AC cable 14, which results in that a closed magnetic circuit cannot be formed at the opening 15, and the magnetic resistance at the opening 15 is relatively large. During the wireless charging process, there will be a large leakage magnetic field at the opening 15 of the electromagnetic core 13, which will aggravate the eddy current effect of the surrounding metal, resulting in a poor effect of wireless coupling. In addition, the large leakage magnetic field aggravates the magnetic field interference to the external environment, which will bring a greater safety hazard to the surrounding personnel.

[0051] Based on at least one of the above technical problems, an embodiment of the present application provides a power supply device and a transportation system. The power supply device may include a first magnetic core, a second magnetic core, a winding and an AC cable. The winding may be sleeved on the first magnetic core. The first magnetic core may have a first magnetic column and a second magnetic column. A through slot may be formed between the first magnetic column and the second magnetic column. The AC cable may be passed through the through slot along a preset direction. The first magnetic core moves along a preset direction relative to the AC cable. During the movement of the first magnetic core along the preset direction, a portion of the AC cable having a vertical projection on the first magnetic column forms a first corresponding portion, and the second magnetic core corresponding to the first corresponding portion forms a second corresponding portion. The first corresponding portion is located in the through slot, the second corresponding portion is located on the side of the first corresponding portion away from the bottom wall of the through slot, and the second corresponding portion is located in the through slot toward the side of the first corresponding portion. With such arrangement, during the movement of the first magnetic core along the preset direction, at least part of the second corresponding part can be located in the through slot, and the second corresponding part can improve the closure of the magnetic circuit at the slot of the through slot, and provide a low magnetic resistance passage at the slot of the through slot, thereby reducing the magnetic resistance at the slot of the through slot, thereby reducing the leakage magnetic flux at the slot of the through slot, increasing the magnetic flux in the winding, and relieving the eddy current effect of the leakage magnetic flux on the surrounding metal, thereby improving the coupling effect between the winding and the AC cable, and improving the output power of the power supply device, and also helping to reduce the size of the first magnetic core and reduce the weight of the transportation device provided with the first magnetic core. In addition, the magnetic field interference to the external environment can also be reduced, thereby reducing the safety hazards to the surrounding personnel.

[0052] In order to make the purpose, technical solution and advantages of the embodiments of the present application clearer, the technical solution in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, not all of the embodiments. Based on the embodiments in the present application, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of this application.

[0053] The following will be combined Figure 2-Figure 9 The transportation system provided in the embodiment of the present application is described.

[0054] The embodiment of the present application provides a transportation system, which may include a transportation device and a track 101 ( Figure 2 ), the transport device and the track 101 can be movably connected along the extension direction of the track 101. The transport device can be used to carry the object to be transported. The track 101 can extend along a preset direction, and the extension direction of the track 101 is the preset direction. The transport device moves on the track 101 to transport the object to be transported to a desired location. For example, the transport device can reciprocate and slide or roll along the extension direction of the track 101.

[0055] Exemplarily, the material of the track 101 may be metal material or other materials.

[0056] Exemplarily, the transport system may include at least one transport device. When there are multiple transport devices, the multiple transport devices may all reciprocate along the extension direction of the track 101 .

[0057] For example, the transportation system may include a power supply device 102 ( Figure 2 ), the power supply device 102 can be used to provide electrical energy to the transportation device to drive the transportation device to move.

[0058] The power supply device 102 provided in an embodiment of the present application is described below.

[0059] See also Figure 2 The embodiment of the present application provides a power supply device 102, which may include an AC cable 130, and the AC cable 130 may be laid along the extension direction of the track 101. The AC cable 130 may be electrically connected to an external AC power source to generate AC excitation. By keeping the AC current on the AC cable 130 constant, a constant magnetic field is generated in the area around the AC cable 130.

[0060] See also Figure 2 Exemplarily, the power supply device 102 may include a first magnetic core 110 and a winding, the winding may be sleeved on the first magnetic core 110, and the first magnetic core 110 and the winding may together form a power collector. The first magnetic core 110 may have a first magnetic column 111 and a second magnetic column 112, and a through slot 114 may be formed between the first magnetic column 111 and the second magnetic column 112. The AC cable 130 may be passed through the through slot 114 along a preset direction, so that a low magnetic resistance path may be formed in the magnetic field, so that the winding wound on the first magnetic core 110 may obtain sufficient magnetic flux, thereby realizing wireless energy transmission.

[0061] Exemplarily, there may be one AC cable 130, and the first magnetic core 110 may be in a "U" shape. Alternatively, there may be two AC cables 130, the current directions of the two AC cables 130 may be opposite, and the first magnetic core 110 may be in an "E" shape or an "I" shape. Alternatively, there may be more than or equal to three AC cables 130, and the current directions of two adjacent AC cables 130 may be opposite. The embodiment of the present application does not limit the number of AC cables 130 and the shape of the first magnetic core 110.

[0062] See also Figure 2, taking the case where there are two AC cables 130 and the first magnetic core 110 is in an "E" shape, the number of the first magnetic column 111 is one, the number of the second magnetic column 112 is two, the first magnetic column 111 can be located between the two second magnetic columns 112, and one end of the first magnetic column 111 and the second magnetic column 112 can be connected to the connecting portion 113. A through slot 114 is formed between the first magnetic column 111 and one of the second magnetic columns 112, and another through slot 114 is formed between the first magnetic column 111 and the other second magnetic column 112. The two AC cables 130 are arranged corresponding to the two through slots 114, and the AC cables 130 are inserted into the corresponding through slots 114. Among them, the winding can be arranged on at least one of the first magnetic column 111, the second magnetic column 112, and the connecting portion 113.

[0063] Exemplarily, the first magnetic core 110 and the winding may be disposed on a transport device, and the first magnetic core 110 and the winding may move along a preset direction relative to the AC cable 130 as the transport device. The winding may be electrically connected to the transport device to provide electrical energy to the transport device. An electric energy converter may be disposed on the transport device, and the winding may be electrically connected to the transport device through the electric energy converter. The electric energy converter may convert the AC on the winding into DC and output it to the transport device. In an embodiment in which there are multiple transport devices, each transport device may be provided with a power supply, and at least one power supply is provided on one transport device. The power supplies of multiple transport devices may all draw electricity from the AC cable 130. The embodiment of the present application is described by taking the corresponding arrangement of one transport device and one power supply as an example. The embodiment of the present application is described by taking one transport device as an example.

[0064] In some embodiments, see Figure 2 , the power supply device 102 may include a support 140, a portion of the AC cable 130 may be arranged on the support 140, and the AC cable 130 and the track 101 may be connected through the support 140. The number of the support 140 may be multiple, and the multiple support members 140 may be arranged at a distance in pairs along a preset direction. The support 140 can maintain a certain distance between the AC cable 130 and the track 101 to avoid the magnetic field of the AC cable 130 cutting the track 101 (metal) and generating an eddy current effect, thereby avoiding causing large eddy current losses. For example, the AC cable 130 can be arranged in parallel with the track 101, so as to ensure the stable operation of the transportation device.

[0065] In some embodiments, see Figure 2The power supply device 102 may include a connector 150, and the support member 140 may be connected to the track 101 through the connector 150. The connector 150 may increase the connection area between the support member 140 and the track 101, thereby improving the connection stability between the support member 140 and the track 101. For example, each support member 140 may extend in the direction from the track 101 to the AC cable 130, one end of each support member 140 may be connected to the AC cable 130, and the other end of each support member 140 may be connected to the connector 150. The connector 150 may be arranged parallel to the track 101.

[0066] For example, the support member 140 and the connection member 150 may be connected by welding, clamping, bonding, threaded connection, integral molding, etc.

[0067] In some embodiments, see Figure 3 and Figure 4 , the power supply device 102 may include a second magnetic core 120, during the movement of the first magnetic core 110 along a preset direction, a portion of the AC cable 130 having a vertical projection on the first magnetic column 111 may form a first corresponding portion 130a, and corresponding to the first corresponding portion 130a, the second magnetic core 120 may form a second corresponding portion 120b, the first corresponding portion 130a may be located in the through slot 114, and the second corresponding portion 120b may be located on the side of the first corresponding portion 130a away from the bottom wall of the through slot 114. In the movement of the first magnetic core 110 along a preset direction, the first region A and the second region B are the positions of the first magnetic core 110 at two different moments. At the first moment, the AC cable 130 in the first region A may be located in the through slot 114 and form the first corresponding portion 130a, and if the second magnetic core 120 is provided in the first region A, the second magnetic core 120 located in the first region A may form the second corresponding portion 120b. At the second moment, the AC cable 130 in the second region B may be located in the through slot 114 and form a first corresponding portion 130a. If a second magnetic core 120 is provided in the second region B, the second magnetic core 120 located in the second region B may form a second corresponding portion 120b. Therefore, as the first magnetic core 110 moves, the positions of the first corresponding portion 130a and the second corresponding portion 120b will also change accordingly.

[0068] For example, see Figure 3During the movement of the first magnetic core 110 along the preset direction, the side of the second corresponding portion 120b facing the first corresponding portion 130a can be located in the through slot 114, and the side of the second corresponding portion 120b facing away from the first corresponding portion 130a can be located outside the through slot 114, that is, the second corresponding portion 120b can be partially located in the through slot 114. In this way, the second corresponding portion 120b can improve the closure of the magnetic circuit at the slot of the through slot 114, provide a low magnetic resistance passage at the slot of the through slot 114, thereby reducing the magnetic resistance at the slot of the through slot 114, thereby reducing the leakage magnetic flux at the slot of the through slot 114, increasing the magnetic flux in the winding, and relieving the eddy current effect of the leakage magnetic flux on the surrounding metal, thereby improving the coupling effect between the winding and the AC cable 130, and improving the output power of the power supply device 102, and also helping to reduce the size of the first magnetic core 110 and reduce the weight of the transportation device provided with the first magnetic core 110. In addition, it can also reduce the magnetic field interference to the external environment, thereby reducing the safety hazards to the surrounding personnel.

[0069] For example, see Figure 3 During the movement of the first magnetic core 110 along a preset direction, the side of the second corresponding portion 120b facing the first corresponding portion 130a can be located in the through slot 114, and the side of the second corresponding portion 120b away from the first corresponding portion 130a can also be located in the through slot 114, that is, the second corresponding portion 120b can be completely located in the through slot 114, thereby further reducing the leakage magnetic flux at the notch of the through slot 114, further improving the coupling effect between the winding and the AC cable 130, and in addition, further reducing the magnetic field interference to the external environment.

[0070] Among them, Figure 1 In FIG. 1 , the dotted arrows show the distribution of magnetic field lines at the opening 15 of the electromagnetic core 13. Since no second magnetic core is provided, a large magnetic leakage L1 will exist at the opening 15 of the electromagnetic core 13. Figure 3 In the figure, the dotted arrows represent the distribution of magnetic lines of force at the slot opening of the through slot 114 of the first magnetic core 110. The present application is provided with a second magnetic core 120. When the second magnetic core 120 forms a second corresponding portion 120b, the leakage magnetic flux L2 at the slot opening of the through slot 114 of the first magnetic core 110 is significantly smaller than the leakage magnetic flux L1, that is, the second corresponding portion 120b can reduce the leakage magnetic flux at the slot opening of the through slot 114.

[0071] Exemplarily, at least a portion of the second magnetic core 120 may be disposed in parallel with the AC cable 130. For example, at least a portion of the second magnetic core 120 may be disposed on the support member 140, and the support member 140 may support the second magnetic core 120.

[0072] The following describes the configuration of the second magnetic core 120 provided in the embodiment of the present application.

[0073] In some embodiments, see Figure 5 The second magnetic core 120 may include a first sub-core 121, and the first sub-core 121 may be provided on at least a portion of the supporting members 140, so that when the first magnetic core 110 passes through the supporting member 140 provided with the first sub-core 121, the first sub-core 121 may form a second corresponding portion 120b, thereby reducing the leakage magnetic flux at the slot of the through slot 114, improving the coupling effect between the winding and the AC cable 130, and reducing the magnetic field interference to the external environment.

[0074] Exemplarily, there can be multiple first sub-cores 121, and each support member 140 can be provided with a first sub-core 121, that is, multiple first sub-cores 121 and multiple support members 140 can be provided one-to-one, and the first sub-cores 121 can be located on the corresponding support members 140, so that when the first magnetic core 110 passes through each support member 140, each corresponding first sub-core 121 can form a second corresponding part 120b, thereby reducing the leakage magnetic flux at the slot of the through slot 114, improving the coupling effect between the winding and the AC cable 130, and reducing the magnetic field interference to the external environment.

[0075] For example, see Figure 5 , at least some of the support members 140 may have a first groove 141, and the first sub-core 121 may be located in the first groove 141, so that the first sub-core 121 is not likely to interfere with the first magnetic core 110, and it is helpful to reduce the volume of the first magnetic core 110. In other examples, the support member 140 may not be provided with the first groove 141, so that the preparation process of the support member 140 can be simplified.

[0076] For example, see Figure 5 , the first sub-core 121 located on the same support member 140 may include a first portion 1211 and a second portion 1212 arranged along a preset direction, and the first portion 1211 and the second portion 1212 may be in contact with each other, which is conducive to increasing the extension length of the first sub-core 121 along the preset direction, increasing the coverage of the first sub-core 121, better reducing the leakage magnetic flux at the notch of the through slot 114, improving the coupling effect between the winding and the AC cable 130, and reducing the magnetic field interference to the external environment. Alternatively, there may be a spacing between the first portion 1211 and the second portion 1212, and the spacing may be smaller than the width of the support member 140 along the preset direction, thereby reducing the difficulty of assembling the first portion 1211 and the second portion 1212 on the support member 140.

[0077] In some embodiments, see Figure 6The second magnetic core 120 may include a second sub-magnetic core 122, and the second sub-magnetic core 122 may be arranged between at least part of two adjacent support members 140, so that when the first magnetic core 110 passes through the gap between the two adjacent support members 140, the second sub-magnetic core 122 can form a second corresponding portion 120b, thereby reducing the leakage magnetic flux at the slot of the through slot 114, improving the coupling effect between the winding and the AC cable 130, and reducing the magnetic field interference to the external environment.

[0078] For example, there may be multiple second sub-cores 122, and a second sub-core 122 may be arranged between each two adjacent support members 140, so that when the first magnetic core 110 passes through the gap between each two adjacent support members 140, the second sub-core 122 may form a second corresponding portion 120b, thereby reducing the leakage magnetic flux at the slot of the through slot 114, improving the coupling effect between the winding and the AC cable 130, and reducing the magnetic field interference to the external environment.

[0079] In an embodiment in which a first sub-core 121 is provided on at least part of two adjacent support members 140 and a second sub-core 122 is provided between two adjacent support members 140, one of the two second sub-cores 122 adjacent to the same first sub-core 121 can be an integral structure with the first part 1211, and the other of the two second sub-cores 122 adjacent to the same first sub-core 121 can be an integral structure with the second part 1212, and the two adjacent second sub-cores 122 are connected to the same support member 140 through the first part 1211 and the second part 1212, and part of the first sub-core 121 (i.e., the first part 1211 or the second part 1212) and the adjacent second sub-core 122 can be assembled on the support member 140 at the same time, and the part of the first sub-core 121 and the adjacent second sub-core 122 can be prepared at the same time, thereby simplifying the manufacturing process and assembly process of the part of the first sub-core 121 and the adjacent second sub-core 122.

[0080] In some embodiments, see Figure 7 , the second magnetic core 120 may include a third sub-magnetic core 123, the third sub-magnetic core 123 may be cylindrical, and the third sub-magnetic core 123 may be sleeved on the outside of at least part of the support member 140. For example, there may be multiple third sub-magnetic cores 123, and the multiple third sub-magnetic cores 123 and the multiple support members 140 may be arranged one-to-one, and the third sub-magnetic core 123 may be sleeved on the outside of the corresponding support member 140, so that when the first magnetic core 110 passes through each support member 140, each corresponding third sub-magnetic core 123 may form a second corresponding portion 120b, so that the leakage magnetic field at the notch of the through slot 114 can be reduced, the coupling effect between the winding and the AC cable 130 can be improved, and the magnetic field interference to the external environment can be reduced.

[0081] The second magnetic core 120 may include at least one of a first sub-magnetic core 121, a second sub-magnetic core 122 and a third sub-magnetic core 123. Figure 6 The second magnetic core 120 may include a first sub-magnetic core 121 and a second sub-magnetic core 122. At least one of the first sub-magnetic core 121, the second sub-magnetic core 122 and the third sub-magnetic core 123 may be a flexible member or a hard member.

[0082] In the embodiment where the second magnetic core 120 includes a first sub-core 121 and a second sub-core 122, and both the first sub-core 121 and the second sub-core 122 are flexible parts, at least one first sub-core 121 and an adjacent second sub-core 122 may be an integral structure, so that the extension length of the portion of the second magnetic core 120 of the integral structure can be longer. By setting the second magnetic core 120 as a flexible part, the portion of the second magnetic core 120 of the integral structure can be suitable for scenes that require bending. For example, each adjacent first sub-core 121 and second sub-core 122 may be an integral structure, so that the second magnetic core 120 as a whole is an integral structure. See Figure 8 The second magnetic core 120 can be arranged on the surface of the AC cable 130 that is away from the bottom wall of the through slot 114, and the second magnetic core 120 and the AC cable 130 are connected into an integral structure, so that the second magnetic core 120 and the AC cable 130 do not need to be assembled separately, so as to simplify the assembly process. By setting the second magnetic core 120 as a flexible member, the second magnetic core 120 and the AC cable 130 can be well fitted.

[0083] See also Figure 8 In the embodiment where the first groove 141 is provided on the support member 140, part of the AC cable 130 may also be provided in the first groove 141. At this time, on the same support member 140, part of the second magnetic core 120 (first sub-magnetic core 121) and part of the AC cable 130 may both be located in the first groove 141, so that there is no need to separately provide a groove for the AC cable 130, and the number of grooves on the support member 140 may be reduced to simplify the preparation process of the grooves on the support member 140. For example, when the second magnetic core 120 is a flexible member, on the same support member 140, part of the second magnetic core 120 and part of the AC cable 130 may both be located in the first groove 141. By providing the second magnetic core 120 as a flexible member, the part of the second magnetic core 120 and the part of the AC cable 130 may fit more closely, which is conducive to reducing the size of the first groove 141 to reduce the influence of the first groove 141 on the mechanical strength of the support member 140.

[0084] See also Figure 5In the embodiment where the first groove 141 is provided on the support member 140, the second groove 142 may also be provided on the support member, and part of the AC cable 130 may be provided in the second groove 142. On the same support member 140, the first groove 141 and the second groove 142 may be arranged along the direction from the track 101 to the AC cable 130, and part of the second magnetic core 120 (first sub-magnetic core 121) and part of the AC cable 130 may be located in the first groove 141 and the second groove 142, respectively, so as to avoid mutual interference between the part of the second magnetic core 120 and the part of the AC cable 130 during the assembly process. For example, when the second magnetic core 120 is a hard part, on the same support member 140, the part of the second magnetic core 120 and the part of the AC cable 130 may be located in the first groove 141 and the second groove 142, respectively.

[0085] In some embodiments, see Fig. 9 , the second magnetic core 120 may include a plurality of fourth sub-magnetic cores 124, the plurality of fourth sub-magnetic cores 124 may be arranged at intervals along a preset direction, and each of the fourth sub-magnetic cores 124 may be provided with an auxiliary member 143 at one end facing the AC cable 130, the auxiliary member 143 may be connected to the AC cable 130, and the auxiliary member 143 and the corresponding fourth sub-magnetic core 124 may form at least part of the support member 140. By setting the material of part of the support member 140 to a magnetic material and forming the fourth sub-magnetic core 124, the support member 140 and the fourth sub-magnetic core 124 are combined into one structure, and the structure of the power supply device 102 can be simplified. For example, the fourth sub-magnetic core 124 may be a hard member, so as to form a better support for the AC cable 130. The material of the auxiliary member 143 may be a non-magnetic material.

[0086] It should be noted here that the numerical values ​​and numerical ranges involved in the embodiments of the present application are approximate values. Due to the influence of the manufacturing process, there may be a certain range of errors, which can be considered negligible by those skilled in the art.

[0087] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, rather than to limit it. Although the present application has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A power supply device, characterized in that: include: A first magnetic core, a second magnetic core, a winding and an AC cable, wherein the winding is sleeved on the first magnetic core, the first magnetic core has a first magnetic column and a second magnetic column, a through slot is formed between the first magnetic column and the second magnetic column, and the AC cable is passed through the through slot along a preset direction; The first magnetic core moves along the preset direction relative to the AC cable. During the movement of the first magnetic core along the preset direction, a portion of the AC cable having a vertical projection on the first magnetic column forms a first corresponding portion, and the second magnetic core corresponding to the first corresponding portion forms a second corresponding portion. The first corresponding portion is located in the through slot, the second corresponding portion is located on a side of the first corresponding portion away from the bottom wall of the through slot, and the second corresponding portion is located in the through slot toward the first corresponding portion.

2. The power supply device according to claim 1, characterized in that: During the movement of the first magnetic core along the preset direction, the second corresponding portion is located in the through slot at a side away from the first corresponding portion.

3. The power supply device according to claim 1 or 2, characterized in that: It also includes a plurality of support members, which are arranged at intervals along the preset direction, and a portion of the AC cables and at least a portion of the second magnetic core are arranged on the support members.

4. The power supply device according to claim 3, characterized in that: At least a portion of the support member has a first groove, and the second magnetic core is disposed in the first groove.

5. The power supply device according to claim 4, characterized in that: The second magnetic core includes a first sub-magnetic core, and the first sub-magnetic core is located in the first groove.

6. The power supply device according to claim 5, characterized in that: The second magnetic core includes a second sub-magnetic core. The first sub-magnetic core is disposed on at least part of two adjacent support members, and the second sub-magnetic core is disposed between at least part of two adjacent support members.

7. The power supply device according to claim 6, characterized in that: The first sub-core comprises a first portion and a second portion arranged along the preset direction; One of the two second sub-cores adjacent to the same first sub-core is an integral structure with the first portion, and the other is an integral structure with the second portion.

8. The power supply device according to claim 7, characterized in that: In the same first sub-core, the first portion is in contact with the second portion, or there is a distance between the first portion and the second portion, and the distance is smaller than a width of the support member along the preset direction.

9. The power supply device according to claim 6, characterized in that: The second magnetic core is a flexible member, and at least one of the first sub-magnetic cores and the adjacent second sub-magnetic core are an integral structure.

10. The power supply device according to claim 3, characterized in that: The second magnetic core includes a third sub-magnetic core, the third sub-magnetic core is cylindrical, and the third sub-magnetic core is sleeved on the outer side of at least part of the supporting member.

11. The power supply device according to claim 9, characterized in that: The AC cable is disposed in the first groove.

12. The power supply device according to claim 4, characterized in that: The support member also has a second groove, and the AC cable is arranged in the second groove.

13. The power supply device according to claim 1 or 2, characterized in that: The second magnetic core comprises a plurality of fourth sub-magnetic cores, and the plurality of fourth sub-magnetic cores are arranged at intervals along the preset direction; Each of the fourth sub-cores is provided with an auxiliary component at one end facing the AC cable, the auxiliary component is connected to the AC cable, and the auxiliary component and the corresponding fourth sub-core form at least a part of the support component; wherein, The fourth sub-magnetic core is a hard part.

14. A transportation system, characterized in that: include: A transport device, a track, and a power supply device as described in any one of claims 1 to 13, wherein the track extends along a preset direction, one end of each support member of the power supply device that is away from the AC cable of the power supply device is connected to the track, the first magnetic core of the power supply device is arranged on the transport device, the winding of the power supply device is electrically connected to the transport device, and the transport device is movably connected to the track along the preset direction.

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