Converter cabinet

Abstract

The utility model relates to the technical field of energy storage conversion, and particularly provides a converter cabinet. The utility model provides a method. The converter cabinet comprises a cabinet body and an IGBT module located in a cabinet cavity of the cabinet body. The IGBT module comprises a base, an IGBT assembly arranged on the base, and rollers connected to the base; a track extending in the first direction is arranged in the cabinet cavity, the IGBT module is arranged on the track, the track is further provided with a guiding piece matched with the rolling wheel, and the rolling wheel is guided by the guiding piece to move on the track in the first direction. According to the converter cabinet provided by the invention, on the basis that the size of the cabinet body does not need to be enlarged, the maintenance operation of the IGBT is simple and convenient, and the problems that the IGBT module in the cabinet body is difficult to maintain, the maintenance operation is tedious and inconvenient, and the consumed time is long in the prior art are solved.

Description

Technical Field

[0001] The present application relates to the technical field of energy storage and current conversion, and in particular to a converter cabinet. Background Art

[0002] The energy storage converter (PCS, Power Conversion System) is a bidirectional current controllable conversion device that connects the energy storage battery system and the power grid / load, and is widely used. The IGBT module on the cabinet is the core component of the converter. IGBT generates a lot of heat during operation. If the heat dissipation is poor or the ambient temperature has a great impact, the IGBT will operate for a long time in a high temperature and high pressure environment, which will have a great adverse effect on the internal chip, and even the IGBT chip will burn out. Therefore, during the operation of the converter, the IGBT module needs to be regularly inspected or replaced. At present, the IGBT modules are all fastened in the cabinet, and there are many components in the cabinet, such as circuit breakers, reactors, cooling fans or coolant tanks. The space in the cabinet is tight, and it is very difficult for staff to enter the cabinet for maintenance. Not only is the operation difficult and inconvenient, but it also takes a long time. If the size of the cabinet is expanded and maintenance space is reserved, there are problems such as high cost, inconvenience in installation and transportation. If the IGBT module is disassembled and assembled once for each maintenance, it is removed from the cabinet for maintenance and then reinstalled into the cabinet, there are also problems such as cumbersome operation and long time. Utility Model Content

[0003] In view of this, the embodiments of the present application are committed to providing a converter cabinet that facilitates the maintenance operation of the IGBT without increasing the size of the cabinet, aiming to solve the problems in the prior art such as the difficulty in maintaining the IGBT module in the cabinet, cumbersome operation, inconvenience, and time-consuming operation.

[0004] The present application provides a converter cabinet, comprising a cabinet body and an IGBT module located in a cabinet cavity of the cabinet body; the IGBT module comprises a base, an IGBT assembly arranged on the base, and a roller connected to the base; a track extending along a first direction is arranged in the cabinet cavity, the IGBT module is arranged on the track, and a guide member cooperating with the roller is also provided on the track, and the roller moves along the first direction on the track under the guidance of the guide member.

[0005] In a possible implementation manner, the guide member includes a blocking bar at least located on one axial side of the roller, and the blocking bar extends along the first direction;

[0006] Alternatively, the guide member includes a first groove extending along the first direction and opening toward the IGBT module in a third direction, and the roller is located in the first groove.

[0007] In a possible implementation manner, the rollers are provided in at least two rows spaced apart along the second direction;

[0008] At least two of the rails are provided, and two of the rails are respectively connected to two cabinet boards of the cabinet body that are opposite to each other in the second direction, and each of the rails supports a row of the rollers;

[0009] Alternatively, the track is in the shape of a plate, is located directly below the IGBT module in the third direction of the cabinet, and supports at least two rows of the rollers.

[0010] In a possible embodiment, the track includes a crossbeam having a planar support surface; the guide member includes a first baffle and a second baffle arranged at intervals along a second direction, the first baffle and the second baffle extend along the first direction and protrude from the support surface of the crossbeam in a third direction, and the roller is located between the first baffle and the second baffle.

[0011] In a possible implementation manner, a first fixing block is provided in the cabinet cavity, the first fixing block is provided at a first end in the length direction of the track, the first fixing block is provided with a first fixing portion and a second fixing portion, the first fixing portion is fixed to the IGBT module, and the second fixing portion is fixed to the track;

[0012] And / or, a second fixing block is arranged in the cabinet cavity, the second fixing block is arranged at the second end in the length direction of the track, the second fixing block is provided with a third fixing part and a fourth fixing part, the third fixing part is fixed to the IGBT module, and the fourth fixing part is fixed to the track.

[0013] In a possible implementation manner, a third fixing block is disposed in the cabinet cavity, the third fixing block is provided with a limiting portion, and a matching portion is provided on the base, wherein:

[0014] The projection of the limiting portion in the first direction at least partially overlaps with the matching portion, and / or the projection of the limiting portion in the third direction at least partially overlaps with the matching portion and is located on a side of the matching portion away from the roller.

[0015] In a possible implementation, the mating portion includes first blocks disposed at both ends of the base along the first direction, and the limiting portion is located between the two first blocks and cooperates with the first blocks to limit the moving end position of the IGBT module in the first direction.

[0016] In a possible implementation, the matching portion includes a second stopper extending along the first direction, and the limiting portion is located on a side of the second stopper away from the roller in the third direction and is in contact with or has a gap with the second stopper.

[0017] In a possible implementation manner, the base includes a support beam supporting the IGBT assembly and a side plate located at an end portion of the support beam in the second direction, and the first stopper and the second stopper on the base are arranged on the side plate;

[0018] The first stopper and the second stopper on the base form a second groove, two second grooves are provided and are respectively located on the side plates at both ends of the second direction of the base, and each second groove corresponds to at least one limiting portion.

[0019] In a possible embodiment, the third fixed block includes a main plate and a protrusion located on one side of the main plate in the second direction, and the protrusion has two protrusions arranged at intervals along the third direction, one of which forms the limiting portion and the other is detachably connected to the cabinet or the track.

[0020] The converter cabinet provided by the present application has a track supporting the IGBT module in the cabinet cavity. The IGBT module is not connected to the cabinet body and fixed, but is directly arranged on the track and supported by the track. At the same time, it can move along the first direction on the track through the cooperation of the roller and the guide member on the track. Then, when the IGBT module needs to be regularly inspected or replaced, the IGBT module can be pulled out of the cabinet along the track, so that part or even all of the entire module is exposed, which is very convenient for the staff to perform inspection and maintenance operations such as detection and replacement. After the repair is completed, the IGBT module is directly pushed back into the cabinet body, and the circuit connection is restored to reinstall the IGBT module. The disassembly and assembly process is very simple, the operation is convenient and smooth, and the maintenance convenience is significantly improved, and the time used is shortened. At the same time, the mobile structure of the IGBT module does not adopt a conventional slide rail structure, but a rolling structure. On the one hand, the track can be made according to the use requirements, with strong load-bearing capacity, ensuring the stable support of the heavy IGBT module. On the other hand, the rolling movement method can make the heavy IGBT module move more smoothly without obstruction. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 The first schematic diagram of the converter cabinet in the embodiment of the present application is shown, in which a part of the IGBT module is located outside the cabinet cavity;

[0022] Figure 2 The second schematic diagram of the converter cabinet in the embodiment of the present application is shown, in which the IGBT module is located in the cabinet cavity and is in the installation position;

[0023] Figure 3 The third schematic diagram of the converter cabinet in the embodiment of the present application is shown, in which a part of the IGBT module is located outside the cabinet cavity;

[0024] Figure 4 Shown Figure 3 A partial enlarged view of the third fixing block is also a schematic diagram of the arrangement of the third fixing block;

[0025] Figure 5 The fourth schematic diagram of the converter cabinet in the embodiment of the present application is shown, which is also a schematic diagram of the arrangement of the first fixing block;

[0026] Figure 6 It is a fifth schematic diagram of the converter cabinet in the embodiment of the present application, which is also a schematic diagram of the arrangement of the second fixing block;

[0027] Figure 7 Shown is a schematic diagram of the arrangement of the base and the track in an embodiment of the present application.

[0028] Figure 1-7 middle:

[0029] 100, cabinet; 11, track; 12, stop bar; 13, first fixed block; 14, second fixed block; 15, third fixed block; 151, limiter; 200, IGBT module; 21, base; 211, roller; 212, second groove; 213, first stop block; 214, second stop block; 22, output copper busbar. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present application to clearly and completely describe the technical solutions in the embodiments of the present application. Obviously, the described embodiments are only 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.

[0031] Please refer to the attached Figure 1-7, an embodiment of the present application provides a converter cabinet, including a cabinet 100 and an IGBT module 200 and other electrical devices such as reactors, circuit breakers, etc. arranged in the cabinet 100. Among them, the cabinet 100 has an opening for the IGBT module to enter and exit, or a cabinet door with an opening and closing setting. For example, one side of the cabinet panel is set in the style of a door panel and is hinged on the cabinet, or one side of the cabinet panel is detachably connected to the cabinet through a fastener to form a cabinet door. A track 11 is arranged in the cabinet cavity and extends along a first direction. When a cabinet door or an opening is provided, the opening / cabinet door is located on one side of the track 11 in the first direction. It can also be said that the track 11 extends in a direction perpendicular to the opening / cabinet door and can extend all the way to the opening / cabinet door. The first direction and the second direction are the length direction and the width direction of the cabinet 100, respectively. The first direction can be the length direction or the width direction, without specific limitation, and the third direction is the height direction of the cabinet 100. As shown in the accompanying drawings, in the actual use of the product, the third direction is usually also a vertical direction, and the first direction and the second direction are horizontal directions.

[0032] The IGBT module 200 includes a base 21, an IGBT assembly disposed on the base 21, and a roller 211 connected to the base 21. In this way, the IGBT module 200 is an integral module structure that can be installed and removed as a whole. At the same time, the IGBT module 200 is disposed on the track 11, the roller 211 contacts the track 11, and the track 11 supports the IGBT module 200. At the same time, a guide member is disposed on the track 11, and the guide member cooperates with the roller 211 to guide the roller 211 to move along the first direction on the track 11. Then the IGBT module 200 is not connected to the cabinet 100 and fixed, but is directly placed on the track 11 and supported by the track 11, and can move along the first direction on the track 11 through the roller 211. That is, the IGBT module 200 is movably disposed on the track 11 through the roller 211.

[0033] At the same time, the IGBT module 200 is electrically connected to some electrical components in the cabinet cavity through a copper busbar or a wire. If it is electrically connected through a wire, the length of the wire can be increased. When the IGBT module needs to be repaired, there is no need to disconnect the circuit connection, and the wire can be extended accordingly. Alternatively, the wire can be made disconnectable, such as when the wire is connected through a connector. If the IGBT module is circuit-connected through a copper busbar, its copper busbar can be detachably connected to the copper busbars of other electrical components.

[0034] With such arrangement, when the converter cabinet provided by the present application needs to perform regular inspection or replacement maintenance on the IGBT module 200 (open the cabinet door and disconnect the circuit connection), the IGBT module 200 can be pulled outward along the track 11 so that part or even all of the entire module is exposed, which is very convenient for the staff to perform inspection and replacement and other maintenance operations, without the need to expand the cabinet size, reserve maintenance space in the cabinet 100, or enter the cabinet 100, and even more without the need to perform cumbersome disassembly and assembly operations; after the repair is completed, the IGBT module 200 is directly pushed back into the cabinet 100, and then the circuit connection is restored to reinstall the IGBT module 200 in the cabinet 100; compared with the method in the prior art where the IGBT module 200 is fixedly connected to the cabinet 100, resulting in the need to remove the entire IGBT module 200 during maintenance or the need for the staff to enter the cabinet for maintenance, the disassembly and assembly process is very simple, the maintenance operation is convenient and smooth, the maintenance convenience is significantly improved, the time used is shortened, and the overall effective usability of the converter is improved.

[0035] At the same time, the moving structure of the IGBT module 200 does not adopt a conventional slide rail structure, but a rolling structure. On the one hand, the track 11 can be manufactured according to usage requirements, with strong load-bearing capacity to ensure stable support for the heavy IGBT module 200. On the other hand, the rolling movement method can make the heavy IGBT module 200 move more smoothly without jamming.

[0036] In some embodiments, the IGBT assembly is electrically connected to some electrical components in the cabinet 100 through a copper busbar, and the copper busbar is detachably connected to the IGBT assembly and / or the electrical components. For example, the IGBT assembly has an input copper busbar and an output copper busbar 22, and the input copper busbar and the output copper busbar 22 of the IGBT assembly are detachably connected to the copper busbar of the electrical components; or, the IGBT assembly body is detachably connected to the input copper busbar and the output copper busbar 22. In this way, the connection between the IGBT assembly and the electrical components can be disconnected by disconnecting the copper busbar.

[0037] When the cabinet body 100 is provided with a cabinet door for opening and closing, Figure 2 As shown, the input copper bar and / or output copper bar 22 of the IGBT assembly is arranged on the side of the IGBT module 200 facing the cabinet door, which is also the end of the IGBT module 200 closer to the cabinet door in the first direction. In this arrangement, the input copper bar and / or output copper bar 22 is located at the outermost side of the IGBT module 200, and the copper bar connection operation can be directly disconnected by opening the cabinet door without entering the cabinet. After the maintenance is completed, the IGBT module 200 is pushed back into the cabinet and the copper bar is reconnected without entering the cabinet, which further improves the convenience of maintenance operations.

[0038] The track 11 is located in the cabinet cavity, supports the IGBT module 200 and allows the roller 211 to roll thereon. The track 11 can be a beam structure, such as a crossbeam, or can be a flat plate, with sufficient load-bearing capacity to provide stable support.

[0039] On the base 21 of the IGBT module 200, at least two rows of rollers 211 are arranged at intervals along the second direction to improve the support stability. At least two rails 11 are arranged at intervals in the second direction, and each rail 11 supports a row of rollers 211. For example, two rails 11 are provided, and are respectively connected to two cavity walls of the cabinet cavity opposite to each other in the second direction, that is, respectively connected to two cabinet boards of the cabinet body 100 opposite to each other in the second direction.

[0040] Alternatively, the track 11 is in a flat plate shape and is located directly below the IGBT module 200 in the third direction of the cabinet 100 , supporting at least two rows of rollers 211 .

[0041] In order to improve the accuracy of the moving direction of the IGBT module 200, the positions of the input and output copper bars 22 are precisely located to avoid the problem of misalignment when connecting the copper bars due to offset. A guide member is also provided on the track 11 to limit the moving direction of the IGBT module 200. Through the cooperation of the guide member and the roller, the IGBT module 200 is accurately moved along the first direction to prevent the offset from causing the IGBT module 200 to be not smoothly pulled out and the position deviation when pushed back, which affects the installation.

[0042] Specifically, in some embodiments, the guide member includes a first groove recessed in the main body of the track 11, the first groove extends along the first direction and opens toward the IGBT module 200 in the third direction, the IGBT module 200 is placed on the track 11 and the roller 211 is located in the first groove. When the IGBT module 200 is pulled out, it moves along the first groove. The width of the first groove can be set to match the thickness of the roller 211, such as slightly larger than the roller 211, so that the roller 211 moves smoothly in the first groove without deflecting in direction.

[0043] Alternatively, the guide member includes a stop bar 12 protruding from the support surface of the track 11 body, the stop bar 12 extends along the first direction and is at least located on one axial side of the roller 211, and at least one stop bar 12 is correspondingly provided at each row of rollers 211, or a stop bar 12 extending along the first direction is provided on both axial sides of each row of rollers 211. Through the guiding and limiting effects of the stop bar 12, the roller 211 can roll accurately along the first direction without deviation or shaking.

[0044] like Figure 2 and Figure 4As shown, in a specific embodiment, the track 11 includes a crossbeam, and the support surface of the crossbeam is planar. At the same time, the guide member includes a baffle 12 provided on the support surface of the crossbeam, the baffle 12 extends along the first direction and protrudes from the support surface of the crossbeam in the third direction, and the baffle 12 includes a first baffle and a second baffle, that is, each track 11 is provided with two baffles 12 arranged at intervals along the second direction, which are recorded as the first baffle and the second baffle. The first baffle and the second baffle are parallel to each other, and a row of rollers 211 is located between the first baffle and the second baffle.

[0045] In some embodiments, a first limiting member for limiting the position of the IGBT module 200 in the cabinet cavity in a first direction is further disposed in the cabinet cavity of the converter cabinet.

[0046] For example, Figure 2 and Figure 5 As shown, a first fixing block 13 is provided in the cabinet cavity. The first fixing block 13 is provided at the first end of the length direction (i.e., the first direction) of the track 11. Specifically, it can be fixed on the track 11 or on the cabinet 100. The projection of the first fixing block 13 in the first direction at least partially overlaps with the projection of the roller 211 in the first direction. The first fixing block 13 can be detachably arranged or slidably arranged, that is, the first fixing block 13 is detachably connected or slidably connected to the track 11 / cabinet 100. The first end of the track 11 is the end closer to the cabinet door, and the distance from the cabinet door is greater than the distance between the second end of the track 11 and the cabinet door. When the IGBT module 200 is pushed into the cabinet 100 and reaches the installation and fixing position, the first fixing block 13 is connected to or slides to the first end of the track 11 to block the IGBT module 200 from moving outward and limit the position.

[0047] Specifically, the first fixing block 13 includes a first fixing portion and a second fixing portion, the first fixing portion is connected and fixed to the IGBT module 200, and the second fixing portion is connected and fixed to the track 11. Figure 2 As shown, the first fixing part is in the shape of a plate, and is detachably connected to the IGBT module 200 through a fastener from one side of the IGBT module 200 in the first direction, and the second fixing part is also in the shape of a plate, and is detachably connected to the track 11 through a fastener. When the IGBT module 200 is in the installation position, the first fixing block 13 is connected to the track 11 and the IGBT module 200 respectively, which can firmly fix the IGBT module, enhance the connection stability between the IGBT module and the cabinet, and prevent the IGBT module from moving and dislocating in the cabinet. When maintenance is needed, the first fixing block 13 can be removed to pull out the IGBT module 200 for maintenance.

[0048] In some embodiments, a second fixing block 14 is disposed in the cabinet cavity, and the second fixing block 14 is disposed at the second end of the track 11 in the length direction, and the projection of the second fixing block 14 in the first direction at least partially overlaps with the projection of the roller 211 in the first direction. Figure 6 As shown, when the IGBT module 200 is pushed into the cabinet 100 until it touches the second fixing block 14, or in other words, it abuts against the second fixing block 14, the installation and fixing position is reached.

[0049] Specifically, the second fixing block 14 has a third fixing portion and a fourth fixing portion, the third fixing portion is connected and fixed to the IGBT module 200, and the fourth fixing portion is connected and fixed to the track 11 or the cabinet 100. Figure 5 As shown, the second fixing block 14 is in the shape of a plate, and the third fixing part and the fourth fixing part are both partial plates. The third fixing part is detachably connected to the IGBT module 200 through a fastener from the other side of the IGBT module 200 in the first direction, and the fourth fixing part is detachably connected to the track 11 or the cabinet 100 through a fastener. During installation, the fourth fixing part can be first connected to the track 11 or the cabinet 100, and the second fixing block 14 can be installed in the cabinet 100. Then, the IGBT module 200 can be placed on the track 11 and pushed into the cabinet 100. When the IGBT module 200 is in the installation position when it abuts against the third fixing part, the third fixing part and the IGBT module 200 can be connected. Figure 6 As shown, in the third direction, two second fixing blocks 14 may be provided, one of which is respectively connected to the cabinet 100 and the IGBT module 200, and the other is respectively connected to the track 11 and the IGBT module 200. In this way, the second fixing blocks 14 are respectively connected to the track 11 / cabinet and the IGBT module 200, so that the IGBT module 200 can be firmly fixed, the connection stability between the IGBT module 200 and the cabinet 100 is enhanced, and the IGBT module 200 is prevented from moving and dislocating in the cabinet 100.

[0050] The first fixing block 13 and / or the second fixing block 14 form the first position-limiting member. By setting the first fixing block 13 and the second fixing block 14, the installation position of the IGBT module 200 can be quickly and accurately defined, improving the convenience and accuracy of installation; at the same time, the connection between the IGBT module 200 and the cabinet 100 is strengthened, preventing the IGBT module 200 from shaking, and improving the shock resistance of the IGBT module 200.

[0051] Both the first fixing block 13 and the second fixing block 14 may be provided with two groups, which are respectively located at the two ends of the IGBT module 200 in the second direction. For example, two rails 11 are provided and are respectively located at the two ends of the cabinet cavity in the second direction, and are connected to two cabinet panels opposite to the cabinet body 100 in the second direction. Two first fixing blocks 13 are provided and are respectively located above the two rails 11, and can be connected to the rails 11 or connected to the cabinet panels and fixed, and are located at the first end of the rails 11; similarly, two second fixing blocks 14 are provided and are respectively located above the two rails 11, and can be connected to the rails 11 or connected to the cabinet panels and fixed, and are located at the second end of the rails 11.

[0052] The rail 11 , the first fixing block 13 , and the second fixing block 14 are all arranged on both sides of the IGBT and located at the side of the cabinet 100 , which is beneficial to the electrical components in the middle of the cabinet 100 and helps save space in the cabinet 100 .

[0053] The specific structural forms such as shape, size, etc. of the first fixing block 13 and the second fixing block 14 are not specifically limited.

[0054] In some embodiments, a second limit member is further provided on the cabinet 100 and cooperates with the base 21 to limit the moving end position of the IGBT module 200 in the second direction, so as to prevent the IGBT module 200 from moving too far and falling off the track 11 when the IGBT module 200 is pulled or pushed. In particular, when the IGBT module 200 is pulled, the entire module can be prevented from being pulled off the track 11 as a whole and falling.

[0055] For example, the second limiting member is a third fixing block 15, which is connected to the cabinet 100, and a limiting portion 151 is provided on the third fixing block 15, while a matching portion is provided on the base 21. The projection of the limiting portion 151 in the first direction at least partially overlaps with the matching portion, and the movement end point of the IGBT module 200 in the second direction is limited by the matching of the limiting portion 151 and the matching portion.

[0056] Specifically, the mating portion of the base 21 includes a first stop block, and the first stop blocks 213 are arranged at both ends of the base 21 in the first direction. The limiting portion 151 of the third fixed block 15 is located between the two first stop blocks 213. When the IGBT module 200 moves relative to the cabinet 100 in the first direction, the limiting portion 151 will resist the first stop block 213, thereby terminating the movement of the IGBT module 200.

[0057] In some embodiments, the third fixing block 15 is detachably connected to the cabinet 100. In this way, when the IGBT module 200 needs to be completely pulled out of the cabinet 100, such as when the entire IGBT module 200 is replaced, the third fixing block 15 can be removed to achieve the desired effect. During routine maintenance, the third fixing block 15 is provided to prevent the IGBT module 200 from falling off the track 11, but rather to expose the IGBT module 200 to the cabinet cavity and remain on the track 11, so that the staff can directly perform maintenance.

[0058] In some embodiments, a stopper is further provided in the cabinet cavity to prevent the IGBT module 200 from tilting. Figure 3 , 4 As shown in Figures 7 and 8, a third fixing block 15 connected to the cabinet body 100 is provided in the cabinet cavity, a limiting portion 151 is provided on the third fixing block 15, a matching portion is provided on the base 21, and the projection of the limiting portion 151 in the third direction at least partially overlaps with the matching portion of the base 21. At the same time, in the third direction, the limiting portion 151 of the third fixing block 15 is located on the side of the matching portion away from the roller 211, and is in contact with or has a gap with the matching portion. Such a setting is equivalent to setting a limiting baffle above the base 21 or above a local area of ​​the base 21 to prevent the IGBT module 200 from tilting due to factors such as speed or unstable center of gravity during movement.

[0059] The base 21 includes a support beam for supporting the IGBT assembly. In some embodiments, the entire third fixing block 15 or the limited position portion 151 is disposed above the support beam, specifically above the edge region of the support surface of the base 21 in the second direction.

[0060] Alternatively, in some embodiments, the mating portion of the base 21 includes a second stopper 214 extending along the first direction, and the limiting portion 151 is located on a side of the second stopper 214 away from the roller in the third direction. The limiting portion 151 may contact the second stopper 214 or have a gap therebetween.

[0061] For example, the base 21 includes a support beam supporting the IGBT assembly and a side plate located at the second end of the support beam, and the side plate can be located below the support beam. The second stopper 214 is disposed on the side plate and is located on one side of the side plate. In this way, the third fixing block 15 can be located below the support beam of the base 21, such as between the two rows of rollers 211, such as Figure 3 and Figure 7 As shown, the third fixing block 15 is connected to the side wall of the track 11. Such an arrangement can save space.

[0062] In some embodiments, the base 21 is provided with both a first stopper 213 and a second stopper 214, and the second stopper 214 is provided on the side of the first stopper 213 close to the roller in the third direction. As shown in the figure, the first stopper 213 and the second stopper 214 are equivalent to enclosing a second groove 212, and the limiting portion 151 of the third fixing block 15 extends into the second groove 212, and the projection in the first direction and the groove sidewalls of the second groove 212 at both ends of the first direction (i.e., the first stopper 213) at least partially overlap, and the projection in the third direction and the groove sidewalls of the second groove 212 in the third direction and close to the roller (i.e., the second stopper 214) at least partially overlap. The cooperation of the limiting portion 151 and the second stopper 214 effectively prevents the IGBT module from tilting.

[0063] As the IGBT module 200 moves on the track 11 , the second groove 212 moves relative to the third fixing block 15 , and the first stopper 213 of the second groove 212 in the first direction blocks the third fixing block 15 , effectively preventing the IGBT module 200 from falling off the track 11 .

[0064] Two groups of third fixing blocks 15 can be provided, which are respectively located at the two ends of the cabinet cavity in the second direction, blocking the IGBT module 200 from both sides to ensure the smooth movement of the IGBT module 200, and will not occupy the space in the middle area of ​​the cabinet 100, which is conducive to the arrangement of electrical components.

[0065] There are also two second grooves 212, namely, two first stoppers 213 and one second stopper 214 form a matching portion, and there are two matching portions respectively located at the two ends of the base 21 in the second direction. Each second groove 212 corresponds to a group of third fixing blocks 15, namely, corresponds to at least one third fixing block 15.

[0066] like Figure 4 As shown, the third fixing block 15 includes a main plate and a protrusion located on one side of the main plate in the second direction, the protrusion has two protrusions arranged at intervals along the third direction, one of which forms a limiting portion 151 and extends into the second groove 212, and the other is detachably connected to the cabinet 100 or the rail 11 through fasteners.

[0067] The basic principles of the present application are described above in conjunction with specific embodiments. However, it should be noted that the advantages, strengths, effects, etc. mentioned in the present application are only examples and not limitations, and it cannot be considered that these advantages, strengths, effects, etc. are required by each embodiment of the present application. In addition, the specific details disclosed above are only for the purpose of illustration and ease of understanding, not for limitation, and the above details do not limit the present application to being implemented by adopting the above specific details.

[0068] The components and devices involved in this application are only illustrative examples and are not intended to require or imply that they must be connected, arranged, and configured in the manner shown in the drawings. As will be appreciated by those skilled in the art, these components and devices can be connected, arranged, and configured in any manner. Words such as "including", "comprising", "having", etc. are open words, meaning "including but not limited to", and can be used interchangeably with them. The words "or" and "and" used here refer to the words "and / or" and can be used interchangeably with them, unless the context clearly indicates otherwise. The word "such as" used here refers to the phrase "such as but not limited to", and can be used interchangeably with it.

[0069] It should also be noted that in the device and apparatus of the present application, each component can be decomposed and / or reassembled, and such decomposition and / or reassembly should be regarded as an equivalent solution of the present application.

[0070] The above description of the disclosed aspects is provided to enable any person skilled in the art to make or use the present application. Various modifications to these aspects will be readily apparent to those skilled in the art, and the general principles defined herein may be applied to other aspects without departing from the scope of the present application. Therefore, the present application is not intended to be limited to the aspects shown herein, but rather to the widest scope consistent with the principles and novel features disclosed herein.

[0071] It should be understood that the qualifiers "first", "second" and "third" used in the description of the embodiments of the present application are only used to more clearly explain the technical solutions and cannot be used to limit the scope of protection of the present application.

[0072] The above description has been given for the purpose of illustration and description. In addition, this description is not intended to limit the embodiments of the present application to the forms disclosed herein. Although multiple example aspects and embodiments have been discussed above, those skilled in the art will recognize certain variations, modifications, changes, additions and sub-combinations thereof.

[0073] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent substitutions, etc. made within the spirit and principles of the present application shall be included in the protection scope of the present application.

Claims

1. A converter cabinet, characterized in that: It includes a cabinet body and an IGBT module located in a cabinet cavity of the cabinet body; The IGBT module includes a base, an IGBT assembly arranged on the base, and a roller connected to the base; A track extending in a first direction is arranged in the cabinet cavity, the IGBT module is arranged on the track, a guide member cooperating with the roller is also arranged on the track, and the roller moves along the first direction on the track under the guidance of the guide member.

2. The converter cabinet according to claim 1, characterized in that: The guide member comprises a blocking bar at least located on one side of the roller axial direction, and the blocking bar extends along the first direction; Alternatively, the guide member includes a first groove extending along the first direction and opening toward the IGBT module in a third direction, and the roller is located in the first groove.

3. The converter cabinet according to claim 1, characterized in that: The rollers are arranged in at least two rows spaced apart along the second direction; and, At least two of the rails are provided, and two of the rails are respectively connected to two cabinet boards of the cabinet body that are opposite to each other in the second direction, and each of the rails supports a row of the rollers; Alternatively, the track is in the shape of a plate, is located directly below the IGBT module in the third direction of the cabinet, and supports at least two rows of the rollers.

4. The converter cabinet according to claim 1, characterized in that: The track includes a crossbeam having a planar support surface; The guide member includes a first baffle and a second baffle arranged at intervals along the second direction, the first baffle and the second baffle extend along the first direction and protrude from the support surface of the beam in the third direction, and the roller is located between the first baffle and the second baffle.

5. The converter cabinet according to claim 1, characterized in that: A first fixing block is provided in the cabinet cavity, the first fixing block is provided at a first end in the length direction of the track, the first fixing block is provided with a first fixing portion and a second fixing portion, the first fixing portion is fixed to the IGBT module, and the second fixing portion is fixed to the track; And / or, a second fixing block is arranged in the cabinet cavity, the second fixing block is arranged at the second end in the length direction of the track, the second fixing block is provided with a third fixing part and a fourth fixing part, the third fixing part is fixed to the IGBT module, and the fourth fixing part is fixed to the track or the cabinet.

6. The converter cabinet according to claim 1, characterized in that: A third fixing block is arranged in the cabinet cavity, and a limiting portion is arranged on the third fixing block. A matching portion is arranged on the base, wherein: The projection of the limiting portion in the first direction at least partially overlaps with the matching portion, and / or the projection of the limiting portion in the third direction at least partially overlaps with the matching portion and is located on a side of the matching portion away from the roller.

7. The converter cabinet according to claim 6, characterized in that: The matching portion includes first blocks arranged at both ends of the base along the first direction, and the limiting portion is located between the two first blocks and cooperates with the first blocks to limit the moving end position of the IGBT module in the first direction.

8. The converter cabinet according to claim 6 or 7, characterized in that: The matching portion includes a second stopper extending along the first direction, and the limiting portion is located on a side of the second stopper away from the roller in the third direction and is in contact with or has a gap with the second stopper.

9. The converter cabinet according to claim 8, characterized in that: The base includes a support beam supporting the IGBT assembly and a side plate located at the end of the support beam in the second direction, and the first stop block and the second stop block are arranged on the side plate; the first stop block and the second stop block enclose a second groove, and two second grooves are provided and are respectively located on the side plates at both ends of the second direction of the base, and each second groove corresponds to at least one of the limiting portions.

10. The converter cabinet according to claim 6, characterized in that: The third fixing block includes a main plate and a protrusion located on one side of the main plate in the second direction, and the protrusion has two protrusions spaced apart along the third direction, one of which forms the limiting portion and the other is detachably connected to the cabinet or the track.

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