Power distribution cabinet for double-current system railway looped network and assembly method of power distribution cabinet

Abstract

The invention relates to the technical field of power distribution facilities, and provides a power distribution cabinet for a double-current system railway looped network and an assembling method thereof, the power distribution cabinet comprises a frame, a cross beam, a busbar group, a connecting row group, a water cooling module and a support, the cross beam is connected with the frame; the busbar group is arranged on the inner side of the frame; a plurality of connecting bar groups are arranged, and one end of each connecting bar group is connected with the busbar group; the water cooling module is embedded on the busbar group; the bracket is clamped with the busbar group, the bracket is connected with the cross beam, and the bracket locks the water cooling module on the busbar group. According to the invention, the water cooling module is arranged on the busbar group, so that the rapid heat dissipation of the busbar group can be realized by circulating the cooling medium, the heat dissipation efficiency is effectively improved, and the water cooling module is directly installed on the busbar group, so that the installation space is effectively saved, and the integration convenience is improved.

Description

Technical Field

[0001] This invention relates to the field of power distribution facilities technology, and in particular to a power distribution cabinet for a dual-current railway ring network and its assembly method. Background Technology

[0002] Dual-system railways refer to railway systems where trains or EMUs can operate continuously on electrified railways with two different power supply systems without stopping to switch power, either automatically or manually. Their core purpose is to solve the "dead-end" problem caused by inconsistent power supply standards between different countries, regions, or historical lines, enabling seamless cross-line and cross-network transportation.

[0003] The dual-current suburban railway ring network cable and related system has several key technologies, such as AC / DC conversion phase separation technology optimization, integrated intelligent maintenance vehicle technology for the overhead contact line, regenerative resistance detection module integration technology, cross-interconnection grounding and wire guide head technology, etc.

[0004] When dual-current trains operate under different power systems (such as AC / DC switching), the current amplitude varies significantly. Therefore, heat dissipation of the switchgear busbars is crucial in dual-current railway systems, far exceeding the importance of conventional single-current railway or industrial power distribution systems. This is due to the inherent technical complexity and high reliability requirements of dual-current systems.

[0005] The existing invention patent application with authorization announcement number CN113991489A discloses a switch cabinet, including a cabinet body, and an exhaust hole on the wall of the busbar compartment connecting the inside and outside of the busbar compartment; the switch cabinet also includes a cooling fan, which is used to allow outside cold air to enter the inner cavity of the lower isolating stationary contact through the lower connecting hole.

[0006] As mentioned above, the cooling solution uses airflow circulation to dissipate heat through a cooling fan. However, air cooling is inefficient and cannot meet the cabinet's heat dissipation needs under high temperatures, which can affect the stability of power supply. Therefore, improving the cooling solution to ensure higher heat dissipation efficiency is an important measure to ensure the stability of power supply in the railway ring network. Summary of the Invention

[0007] In view of this, the present invention proposes a dual-current railway ring network power distribution cabinet and its assembly method that can effectively improve the heat dissipation efficiency of the power distribution cabinet, so as to solve the problem that the existing power distribution cabinets rely on air cooling for heat dissipation, which is inefficient and cannot meet the heat dissipation requirements.

[0008] The technical solution of this invention is implemented as follows: On one hand, this invention provides a power distribution cabinet for a dual-current railway ring network, comprising a frame, crossbeams, busbar groups, connecting busbar groups, water-cooled modules, and a support frame, wherein... The frame is a power distribution cabinet frame; The beams are connected to the frame; The busbar assembly is located inside the frame; The connection group has multiple connections, and one end of the connection group is connected to the busbar group; The water-cooled module is integrated into the busbar assembly; The bracket engages with the busbar assembly, the bracket is connected to the crossbeam, and the bracket locks the water-cooled module onto the busbar assembly.

[0009] Based on the above technical solutions, preferably, the water-cooling module includes a guide sleeve, a connecting pipe, a connecting part, and a heat sink, wherein, The busbar assembly includes three busbars, with a guide sleeve fitted on each of the three busbars, and the guide sleeve has a hollow structure; One connecting pipe is provided on each of the three guide sleeves on the same side end, and the connecting pipe is connected to the guide sleeve; The connecting part is located at the end of the guide sleeve away from the connecting pipe, and the connecting part is connected to the two adjacent guide sleeves; Multiple heat sinks are provided, and the heat sinks are arranged in parallel between two adjacent guide sleeves. The heat sinks and guide sleeves are an integral structure.

[0010] Based on the above technical solutions, preferably, the bracket includes a first bracket, a second bracket, and a locking element, wherein... The first bracket and the second bracket are spliced ​​together, and the opposing surfaces of the first bracket and the second bracket are provided with grooves, in which the busbar is fitted. The locking element is connected to the first bracket, and the locking element is fixed to the guide sleeve.

[0011] Based on the above technical solutions, preferably, the water-cooling module also includes a limiting plate, and the locking components include a connecting block and a locking claw, wherein, The limiting plate is located at the end of the guide sleeve, and the limiting plate is engaged with the first bracket; Two connecting blocks are provided on the first bracket, and the connecting blocks are located on the busbars on both sides; The claw is located on the side of the connecting block and engages with the limiting plate and the busbar.

[0012] Based on the above technical solutions, preferably, the water-cooling module further includes a retaining plate, which comprises a connecting part and a snap-fit ​​part, wherein... The connecting part is connected to the first bracket, and the connecting part corresponds to the busbar located in the middle; The snap-fit ​​part is located on one side of the connecting part. The snap-fit ​​part snaps into the busbar and the limiting plate, and the snap-fit ​​part abuts against the locking claws of the locking members of the corresponding two busbars.

[0013] Based on the above technical solutions, preferably, the groove includes a first groove, a second groove, and a third groove, and the first bracket also has an installation groove, wherein, The first groove, the second groove, and the third groove are all partially formed on the first support, and are also partially formed on the second support. The depth of the first groove on the first bracket is greater than the depth of the second groove and the third groove on the first bracket. Two mounting slots are provided on the first bracket, and the mounting slots are located on the side of the second and third recesses away from the first recess; The connecting block is fixed in the mounting groove, and the claw has a flipping part that extends toward the second bracket and exceeds the portion of the first groove that is opened on the second bracket.

[0014] Based on the above technical solutions, preferably, it also includes a sliding seat, one end of which is slidably connected to the crossbeam, and the other end of which is connected to the bracket; Multiple water-cooled modules are installed on the busbar assembly, and the multiple water-cooled modules are spaced apart. The crossbeam, connecting busbar assembly and sliding seat are all located at the interval between two adjacent water-cooled modules.

[0015] Based on the above technical solutions, preferably, the connecting part of the card plate is clamped between the first bracket and the sliding seat, and the connecting part, the first bracket, the second bracket and the sliding seat are fixed by bolts.

[0016] Based on the above technical solutions, preferably, one bracket is provided at each end of the water-cooling module; the sliding seat is connected to the bracket at the end of one of the water-cooling modules, and the sliding seat supports the bracket at the end of the adjacent water-cooling module through a pull plate.

[0017] On the other hand, the present invention provides an assembly method for the above-mentioned dual-current railway ring network distribution cabinet, comprising the following steps: S1. Connect the guide sleeve of the water-cooled module to the busbar; S2. Assemble the first bracket and the second bracket onto the busbar, and at the same time, the limiting plate is inserted into the first bracket; S3. Fold the locking claws to engage the limiting plate and the busbar, thereby locking the water cooling module and the busbar assembly. S4. Connect and fix the bracket to the crossbeam; S5. Connect the piping of the liquid chiller unit to the connecting pipe of the water cooling module; S6. On the cabinet of the power distribution cabinet, heat dissipation fans or heat dissipation holes are installed corresponding to the heat dissipation plate of the water-cooled module.

[0018] The power distribution cabinet and its assembly method for dual-current railway ring networks of the present invention have the following advantages over the prior art: (1) By setting a water-cooling module on the busbar, the busbar can quickly dissipate heat through the flow of cooling medium, which effectively improves the heat dissipation efficiency compared with the traditional air cooling method. In this structure, the water-cooling module is directly installed on the busbar, which effectively saves installation space and improves integration convenience. At the same time, the busbar and the water-cooling module are directly integrated through the bracket and connected and fixed to the power distribution cabinet frame by the bracket, which effectively reduces the number of required accessories and further improves the convenience of assembly. (2) In the water-cooled module structure, three guide sleeves are provided for the three busbars corresponding to the three-phase electricity, and the connection between the guide sleeves is realized through the heat sink, thus realizing an integrated structure, which is convenient to install and fix on the busbar group. At the same time, after the cooling medium flowing in the guide sleeve is heated, it can be dissipated through the heat sink. Multiple heat sinks are arranged in parallel to form an air duct, which can be used in conjunction with the fan for air cooling. This effectively realizes the combination of water cooling and air cooling, which can further improve the heat dissipation efficiency. (3) The bracket consists of a first bracket and a second bracket, which facilitates the snapping of the busbar assembly. At the same time, a locking element is provided on the first bracket, which can lock the water-cooled module onto the busbar assembly. Since the locking element is integrated with the first bracket, after splicing the first bracket and the second bracket, the limiting plate of the water-cooled module can be directly clamped by flipping the claw of the locking element, which has the advantages of quick and convenient locking. At the same time, the limiting plate is also snapped into the busbar, which can ensure that the water-cooled module does not move around, further improving the stability of the assembly structure. (4) By setting a clamping plate, it can be clamped onto the middle busbar between the three busbars to fix the guide sleeve on the middle busbar. At the same time, the clamping plate also holds the locking claws on the two side busbars, which can prevent the claws from loosening. In this way, the clamping plate simultaneously realizes the installation and fixing of the three guide sleeves on the three busbars. Moreover, the structure of the clamping plate also realizes the spacing of the three busbars, which helps to suppress the creepage problem and further improves the safety of the structure application. (5) By setting grooves on the first bracket and the second bracket, and controlling the depth of the first groove on the second bracket to be shallow, the locking claw on the first bracket can be flipped over after being turned, thus exceeding the depth of the first groove on the second bracket, thereby achieving the separation between the busbars on both sides and the middle busbar, which further improves the electrical isolation performance. (6) By setting a sliding seat on the crossbeam and setting the sliding seat and the crossbeam to slide fit, it is convenient to adjust the position of the sliding seat, which is convenient to connect and fix with the bracket, and also convenient to remove the sliding seat to avoid interfering with the splicing of the bracket, thus further improving the convenience of the overall structure assembly. Attached Figure Description

[0019] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0020] Figure 1 This is a diagram showing the crossbeam and busbar connection structure of the power distribution cabinet for a dual-current railway ring network according to the present invention. Figure 2 This is a perspective view of the power distribution cabinet for a dual-current railway ring network according to the present invention; Figure 3 For the present invention Figure 2 Enlarged view of the structure at point A in the middle; Figure 4 This is a disassembled structural diagram of the sliding seat and bracket of the power distribution cabinet for dual-flow railway ring network of the present invention; Figure 5 For the present invention Figure 4 Enlarged view of the structure at point B; Figure 6 This is a structural diagram showing the separation of the support frame and busbar assembly of the power distribution cabinet for a dual-current railway ring network according to the present invention; Figure 7 This is a structural diagram showing the separation of the water-cooled module and busbar group in the power distribution cabinet for dual-current railway ring network of the present invention; Figure 8 This is a perspective view of the support frame of the power distribution cabinet for a dual-current railway ring network according to the present invention; Figure 9 This is a rear perspective view of the support frame of the power distribution cabinet for a dual-current railway ring network according to the present invention; Figure 10 This is an exploded structural diagram of the support frame of the power distribution cabinet for the dual-flow railway ring network of the present invention; Figure 11 This is a second-view exploded view of the support structure of the power distribution cabinet for the dual-flow railway ring network of the present invention; Figure 12 This is a diagram showing the separate support structure of the power distribution cabinet for a dual-current railway ring network according to the present invention; Figure 13 This is a perspective view of the locking element of the power distribution cabinet for a dual-flow railway ring network according to the present invention; Figure 14 This is a perspective view of the water-cooled module of the power distribution cabinet for a dual-current railway ring network according to the present invention; Figure 15 This is a side view of the water-cooled module of the power distribution cabinet for a dual-current railway ring network according to the present invention; In the diagram: 1. Frame; 2. Crossbeam; 3. Busbar assembly; 31. Busbar; 4. Connecting busbar assembly; 5. Water-cooled module; 51. Guide sleeve; 52. Connecting pipe; 53. Connecting part; 54. Heat sink; 55. Limiting plate; 56. Clamping plate; 561. Connecting part; 562. Clamping part; 6. Bracket; 61. First bracket; 62. Second bracket; 63. Locking element; 631. Connecting block; 632. Claw; 6321. Flipping part; 601. Slot; 6011. First slot; 6012. Second slot; 6013. Third slot; 602. Mounting slot; 7. Sliding seat; 71. Pull plate. Detailed Implementation

[0021] To make the objectives, technical solutions, and advantages of this invention clearer, the technical solutions of this invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of this invention. All other embodiments obtained by those skilled in the art based on the embodiments of this invention without creative effort are within the scope of protection of this invention.

[0022] In the description of the embodiments of the present invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium. Those skilled in the art can understand the specific meaning of the above terms in the embodiments of the present invention based on the specific circumstances.

[0023] In the description of the embodiments of the present invention, it should be noted that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of the present invention.

[0024] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0025] Embodiments of the present invention are described in detail below, examples of which are illustrated in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain the present invention, and should not be construed as limiting the present invention.

[0026] The following disclosure provides numerous different embodiments or examples for implementing various structures of the invention. To simplify the disclosure, specific examples of components and arrangements are described below. These are merely examples and are not intended to limit the invention. Furthermore, reference numerals and / or letters may be repeated in different examples. Such repetition is for simplification and clarity and does not in itself indicate a relationship between the various embodiments and / or arrangements discussed. Additionally, examples of various specific processes and materials are provided in this invention; however, those skilled in the art will recognize the applicability of other processes and / or the use of other materials.

[0027] like Figures 1-15 As shown, the dual-current railway ring network power distribution cabinet of the present invention includes a frame 1, a crossbeam 2, a busbar group 3, a connecting busbar group 4, a water-cooled module 5, a bracket 6, and a sliding seat 7.

[0028] like Figures 1-4 As shown, frame 1 is the power distribution cabinet frame; crossbeam 2 is connected to frame 1; busbar 3 is set inside frame 1; multiple connecting busbars 4 are provided, and one end of connecting busbar 4 is connected to busbar 3; water-cooled module 5 is embedded in busbar 3; bracket 6 engages busbar 3, bracket 6 is connected to crossbeam 2, and bracket 6 locks water-cooled module 5 on busbar 3; As described above, frame 1 is the frame of the power distribution cabinet, which is made of alloy profiles and is enclosed with skin on the outside. Among them, the crossbeam 2 is set on the frame 1. The crossbeam 2 can be detached and integrated separately on the frame 1, or it can be directly integrated as part of the frame 1. Among them, the busbar group 3 is used for current transmission and is arranged inside the frame 1 to be used as a busbar. Among them, the connecting busbar 4 is also set inside the frame 1. One end of the connecting busbar 4 is connected to the busbar 3, and the other end is used to connect the electrical components in the frame 1. Specifically, there are several connection groups 4, and each of the several connection groups 4 has one end connected to the busbar group 3; The water-cooled module 5 is embedded in the busbar group 3 to dissipate heat from the busbar group 3, thereby enabling the power distribution cabinet to operate within a suitable temperature range, which helps to reduce potential safety risks and achieve energy conservation and emission reduction. In order to facilitate the integration and fixing of the busbar assembly 3, the water-cooled module 5 and the crossbeam 2, a bracket 6 is provided. The bracket 6 is also set on the busbar assembly 3, which fixes the water-cooled module 5 on the busbar assembly 3. At the same time, the bracket 6 is also connected to the crossbeam 2. In this way, the busbar assembly 3 and the water-cooled module 5 are fixed on the crossbeam 2. The bracket 6 not only serves to integrate the busbar assembly 3 and the water-cooled module 5, but also realizes the overall installation and fixing. This solution uses water cooling to dissipate heat from the busbar group 3, which has good heat dissipation efficiency. At the same time, the above-mentioned integrated structure makes the whole structure more compact, effectively saving installation space and improving the convenience of integration.

[0029] like Figure 7 , Figure 14 and Figure 15 As shown, the water-cooled module 5 includes a guide sleeve 51, a connecting pipe 52, a connecting part 53, and a heat dissipation plate 54. The busbar group 3 includes three busbars 31, and one guide sleeve 51 is fitted on each of the three busbars 31. The guide sleeve 51 has a hollow structure. One connecting pipe 52 is provided on the same side end of each of the three guide sleeves 51, and the connecting pipe 52 is connected to the guide sleeve 51. The connecting part 53 is provided on the end of the guide sleeve 51 away from the connecting pipe 52, and the connecting part 53 is connected to two adjacent guide sleeves 51. Multiple heat dissipation plates 54 are provided, and multiple heat dissipation plates 54 are arranged parallel between two adjacent guide sleeves 51. The heat dissipation plate 54 and the guide sleeve 51 have an integral structure. As described above, the busbar group 3 is used for the transmission of three-phase electricity. Therefore, the busbar group 3 is provided with three busbars 31. Correspondingly, the water-cooling module 5 is provided with three guide sleeves 51. The guide sleeves 51 are hollow and interconnected to allow the flow of cooling medium. Thus, after the guide sleeves 51 are fitted onto the busbars 31, the heat dissipated by the busbars 31 can be reduced as the cooling medium flows. Specifically, a thermal pad is provided between the guide sleeve 51 and the busbar 31 to increase the heat transfer efficiency; Each of the three guide sleeves 51 has a connecting pipe 52 at the same end. The middle guide sleeve 51 is connected to the cooling medium output of the liquid chiller, while the guide sleeves on both sides are connected to the cooling medium input of the liquid chiller, thereby realizing the circulation of the cooling medium. Furthermore, the ends of the three guide sleeves 51 furthest from the connecting pipe 52 are connected by the connecting part 53. Thus, after the cooling medium is introduced into the middle guide sleeve 51, the cooling medium can flow through the connecting part 53 into the guide sleeves 51 on both sides, and then flow back into the cooling unit through the connecting pipe 52 of the guide sleeves 51 on both sides. Among them, a heat dissipation plate 54 is also provided between adjacent guide sleeves 51. Multiple heat dissipation plates 54 are arranged in parallel to form a flow channel between adjacent heat dissipation plates 54. In this way, a cooling fan or heat dissipation hole can be installed on the cabinet to achieve cooling through airflow after the guide sleeve 51 heats up. The overall structure described above makes this water-cooling module easy to assemble and disassemble, has a tight fit, and high heat dissipation efficiency. At the same time, the water-cooling module combines water cooling and air cooling methods, which can effectively improve heat dissipation efficiency.

[0030] Specifically, busbar group 3 is not limited to power supply busbars, but can also be other lines, and is set up using the above-mentioned fixing and cooling structure. It is used in power distribution facilities including but not limited to ring network power distribution systems, renewable energy braking devices, etc.

[0031] like Figures 4-10 As shown, the bracket 6 includes a first bracket 61, a second bracket 62, and a locking member 63. The first bracket 61 and the second bracket 62 are spliced ​​together, and the opposing surfaces of the first bracket 61 and the second bracket 62 are provided with a groove 601, in which the busbar 31 is fitted. The locking member 63 is connected to the first bracket 61 and fixes the guide sleeve 51. As described above, the bracket 6 for installing the busbar assembly 3 has three parts; The first bracket 61 and the second bracket 62 adopt a splicing structure. Both the first bracket 61 and the second bracket 62 are provided with grooves 601, which form three slots after splicing, so as to fix the three busbars 31. The first bracket 61 is also equipped with a locking member 63. After the water-cooling module 5 is installed on the busbar 31, the locking member 63 is used to install and fix the guide sleeve 51 to the busbar 31, thereby realizing the integration of the busbar group 3 and the water-cooling module 5. Compared to the traditional cable tray structure, this solution adds a locking component 63, which enables the water-cooled module 5 to be installed and fixed on the busbar assembly 3, effectively improving the ease of integration.

[0032] like Figures 11-15 As shown, the water-cooling module 5 also includes a limiting plate 55, and the locking member 63 includes a connecting block 631 and a claw 632. The limiting plate 55 is disposed at the end of the guide sleeve 51 and is engaged with the first bracket 61. Two connecting blocks 631 are disposed on the first bracket 61, and the connecting blocks 631 are located on the two sides of the busbar 31. The claw 632 is disposed on the side of the connecting block 631 and is engaged with the limiting plate 55 and the busbar 31. As described above, in the structure of the water-cooled module 5, a limiting plate 55 is provided at the end of the guide sleeve 51. In the illustrated structure, the limiting plate 55 adopts a T-shaped structure. Correspondingly, a T-shaped groove is opened on the first bracket 61. In this way, the guide sleeve 51 can be installed on the busbar 31 first, and then the first bracket 61 and the second bracket 62 can be spliced. During the splicing process, the limiting plate 55 is engaged into the T-shaped groove of the first bracket 61. After the first bracket 61 and the second bracket 62 are fixed by fasteners, the busbar 31 and the limiting plate 55 are clamped and fixed, thereby ensuring the stability of the installation structure of the water-cooled module 5. The locking component 63 consists of two parts: a connecting block 631 and a claw 632. The connecting block 631 is connected to the first bracket 61, while the claw 632 is located on one side of the connecting block 631. Specifically, the claw 632 is a flexible plastic structure. After the first bracket 61 and the second bracket 62 are assembled, the claw 632 is bent to press against the limiting plate 55. This helps to eliminate the problem that the guide sleeve 51 cannot be stably pressed against the busbar 31 due to processing errors after the first bracket 61 and the second bracket 62 are assembled, thereby ensuring heat dissipation efficiency. Specifically, two locking members 63 are provided on the first bracket 61 to clamp and fix the limiting plates 55 at the ends of the guide sleeves 51 on both sides.

[0033] like Figure 5 , Figures 7-11 As shown, the water-cooling module 5 also includes a retaining plate 56, which includes a connecting part 561 and a snap-fit ​​part 562. The connecting part 561 is connected to the first bracket 61 and corresponds to the middle busbar 31. The snap-fit ​​part 562 is disposed on one side of the connecting part 561 and snaps into the busbar 31 and the limiting plate 55. The snap-fit ​​part 562 abuts against the claws 632 of the locking members 63 of the corresponding two-sided busbars 31. As described above, the water-cooled module 5 is equipped with a retaining plate 56, which is used to further ensure the stability of the fit between the guide sleeve 51 and the busbar 31. The card plate 56 is configured with two parts: a connecting part 561 and a snap-fit ​​part 562. A slot is provided on the first bracket 61 for installing the connecting part 561, while the snap-fit ​​part 562 is inserted between two adjacent guide sleeves 51. In this way, the snap-fit ​​part 562 can press the claws 632 of the locking members 63 on both sides, thereby preventing the claws 632 from loosening and falling off. At the same time, the claws 632 realize the isolation of adjacent busbars 31, which helps to suppress the occurrence of creepage problems. The installation of the card plate 56 also helps to make the claws 632 fit tightly with the limiting plate 55. Specifically, during assembly, the crossbeam 2, connecting part 561, first bracket 61 and second bracket 62 are locked together by bolts. In some embodiments, the first bracket 61 and the second bracket 62 are connected separately using fasteners, or the connecting part 561, the first bracket 61 and the second bracket 62 are connected separately using fasteners.

[0034] like Figures 10-15 As shown, the recess 601 includes a first recess 6011, a second recess 6012, and a third recess 6013. A mounting groove 602 is also provided on the first bracket 61. A portion of each of the first recess 6011, second recess 6012, and third recess 6013 is located on the first bracket 61, and a portion of each is located on the second bracket 62. The depth of the first recess 6011 on the first bracket 61 is greater than the depth of the second recess 6012 and third recess 6013 on the first bracket 61. Two mounting grooves 602 are provided on the first bracket 61, and the mounting grooves 602 are located on the side of the second recess 6012 and third recess 6013 away from the first recess 6011. A connecting block 631 is fixed within the mounting groove 602. The claw 632 has a flipping portion 6321, which extends towards the second bracket 62 and exceeds the portion of the first recess 6011 located on the second bracket 62. As described above, the first slot 6011, the second slot 6012 and the third slot 6013 are used to snap the three busbars 31. The three slots are partially opened on the first bracket 61 and the second bracket 62, which makes it easier for the first bracket 61 and the second bracket 62 to snap the busbars 31. This achieves the relative positioning between the components and is beneficial for the subsequent installation of fasteners. Furthermore, the second groove 6012 and the third groove 6013 are aligned, while the first groove 6011 protrudes relatively. Thus, the opening depth of the first groove 6011 on the first bracket 61 is greater than the opening depth of the second groove 6012 and the third groove 6013 on the first bracket 61. Meanwhile, an installation groove 602 is also provided on the first bracket 61. The installation groove 602 is used to install the connecting block 631 of the locking member 63. Since the second groove 6012 and the third groove 6013 are shallowly opened on the first bracket 61, the part of the busbar 31 that is engaged by the second groove 6012 and the third groove 6013 corresponding to the first bracket 61 will be less than the part corresponding to the second bracket 62. Therefore, it is convenient for the claw 632 of the locking member 63 to fold over to press the limiting plate 55. Specifically, the claw 632 flips and presses against the limiting plate 55 by the flipping part 6321; and after the flipping part 6321 flips, the flipping part 6321 extends beyond the portion of the first groove 6011 that is opened on the second bracket 62; thus, complete isolation of adjacent busbars 31 is achieved, which helps to suppress creepage problems and improve the safety and stability of the application. In this application, one method is to connect the busbar assembly 3 and the water-cooling module 5 by splicing the first bracket 61 and the second bracket 62 to press the limiting plate 55, or the connection between the busbar assembly 3 and the water-cooling module 5 can be achieved by flipping the claw 632 of the locking member 63 to press the limiting plate 55; or a combination of the two methods can be used. In this application, one method is to install the card plate 56 to achieve the spacing between adjacent busbars 31 in order to suppress creepage; another method is to fold the claw 632 in the locking member 63 to achieve the spacing between adjacent busbars 31; or a combination of the two methods can be used.

[0035] like Figures 1-4 As shown, one end of the sliding seat 7 is slidably connected to the crossbeam 2, and the other end of the sliding seat 7 is connected to the bracket 6; multiple water-cooled modules 5 are provided on the busbar group 3, and the multiple water-cooled modules 5 are spaced apart, with the crossbeam 2, the connecting busbar group 4 and the sliding seat 7 corresponding to the interval between two adjacent water-cooled modules 5. As described above, in this power distribution cabinet structure, a sliding seat 7 is installed on the crossbeam 2 to connect the bracket 6; In order to avoid interfering with the disassembly and maintenance of the water-cooling module 5, the sliding seat 7 is slidably installed on the crossbeam 2, so that the position of the sliding seat 7 can be adjusted by sliding. When fixing the water-cooling module 5, the sliding seat 7 is moved to the corresponding bracket 6, the bracket 6 is connected to the sliding seat 7 by fasteners, and the sliding seat 7 is locked to the crossbeam 2 by fasteners. When disassembly is required, first release the fixing of the sliding seat 7 to the crossbeam 2, then disconnect the sliding seat 7 from the bracket 6, and the sliding seat 7 can be moved to one side. In the case where the sliding seat 7 is connected to the first bracket 61 and the second bracket 62 by fasteners, if the connection between the sliding seat 7 and the bracket 6 is released, the first bracket 61 and the second bracket 62 can be separated. At this time, the first bracket 61 can be removed, and the water-cooled module 5 can be removed from the busbar group 3, which facilitates subsequent operation and maintenance. Furthermore, when laying out the connecting busbar 4, since the part of the busbar 3 between two adjacent water-cooled modules 5 is exposed, the connecting busbar 4 can be laid out here and connected to the busbar 3.

[0036] like Figure 3 and Figure 5 As shown, the connecting part 561 of the card plate 56 is clamped between the first bracket 61 and the sliding seat 7, and the connecting part 561, the first bracket 61, the second bracket 62 and the sliding seat 7 are fixed by bolts. As described above, when integrating the structure, the connecting part 561 of the card plate 56 is placed between the first bracket 61 and the sliding seat 7, and then it is fixed by bolts. Furthermore, the fasteners used for connection can be connected in series with the second bracket 62, which facilitates the overall connection and fixation, and makes subsequent disassembly and maintenance easier, thus improving the convenience of integration.

[0037] like Figure 3 As shown, there is one bracket 6 at each end of the water-cooling module 5; the sliding seat 7 is connected to the bracket 6 at one end of the water-cooling module 5, and the sliding seat 7 supports the bracket 6 at the end of the adjacent water-cooling module 5 through the pull plate 71. As described above, when fixing the water-cooling module 5, a bracket 6 is set at each end of the water-cooling module 5 for fixing. When setting the sliding seat 7, the sliding seat 7 is connected to the bracket 6 at the end of one water-cooling module 5 by fasteners to achieve fixation. A pull plate 71 is set on the other side of the sliding seat 7 to overlap the bracket at the end of another water-cooling module 5, thus realizing the integration of the brackets at the ends of two adjacent water-cooling modules 5. This is beneficial to improve the stability of the overall structure and ensure the structural strength. Specifically, the pull plate 71 provided on the side of the sliding seat 7 can also be locked to the bracket at the end of the adjacent water-cooling module 5 by fasteners to ensure the stability of the application.

[0038] The assembly method of the power distribution cabinet for a dual-current railway ring network of the present invention includes the following steps: S1. Connect the guide sleeve 51 of the water-cooled module 5 to the busbar 31; S2. Assemble the first bracket 61 and the second bracket 62 onto the busbar 31, while the limiting plate 55 is engaged into the first bracket 61. S3. Fold the claw 632 of the locking member 63 to engage the limiting plate 55 and the busbar 31, thereby completing the locking of the water cooling module 5 and the busbar group 3. S4. Connect and fix the bracket 6 to the crossbeam 2; S5. Connect the piping of the liquid chiller unit to the connecting pipe 52 of the water cooling module 5. S6. On the cabinet of the power distribution cabinet, a cooling fan or cooling hole is provided corresponding to the heat dissipation plate 54 of the water-cooled module 5.

[0039] The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A power distribution cabinet for a dual-current railway ring network, characterized in that: It includes a frame (1), crossbeams (2), busbars (3), connecting busbars (4), water-cooled modules (5), and supports (6), among which, The frame (1) is a power distribution cabinet frame; The crossbeam (2) is connected to the frame (1); The busbar group (3) is located inside the frame (1); The connecting busbar group (4) is provided with multiple busbars, and one end of the connecting busbar group (4) is connected to the busbar group (3); The water-cooled module (5) is fitted onto the busbar assembly (3); The bracket (6) engages with the busbar assembly (3), the bracket (6) is connected to the crossbeam (2), and the bracket (6) locks the water-cooled module (5) onto the busbar assembly (3).

2. The dual-current railway ring network power distribution cabinet according to claim 1, characterized in that: The water-cooling module (5) includes a guide sleeve (51), a connecting pipe (52), a connecting part (53), and a heat sink (54), wherein, The busbar group (3) includes three busbars (31), and one guide sleeve (51) is fitted on each of the three busbars (31), and the guide sleeve (51) is a hollow structure; The connecting pipe (52) is provided on each of the three guide sleeves (51) on the same side end, and the connecting pipe (52) is connected to the guide sleeve (51); The connecting part (53) is disposed on the end of the guide sleeve (51) away from the connecting pipe (52), and the connecting part (53) is connected to the two adjacent guide sleeves (51); Multiple heat sinks (54) are provided, and multiple heat sinks (54) are arranged in parallel between two adjacent guide sleeves (51). The heat sinks (54) and the guide sleeves (51) are an integral structure.

3. The dual-current railway ring network power distribution cabinet according to claim 2, characterized in that: The bracket (6) includes a first bracket (61), a second bracket (62), and a locking member (63), wherein, The first bracket (61) and the second bracket (62) are spliced ​​together, and the first bracket (61) and the second bracket (62) are provided with grooves (601) on opposite surfaces, and the busbar (31) is fitted into the grooves (601); The locking member (63) is connected to the first bracket (61), and the locking member (63) fixes the guide sleeve (51).

4. The power distribution cabinet for a dual-current railway ring network as described in claim 3, characterized in that: The water-cooling module (5) also includes a limiting plate (55), and the locking member (63) includes a connecting block (631) and a claw (632), wherein, The limiting plate (55) is disposed at the end of the guide sleeve (51), and the limiting plate (55) is engaged with the first bracket (61); Two connecting blocks (631) are provided on the first bracket (61), and the connecting blocks (631) correspond to the busbars (31) located on both sides. The claw (632) is disposed on the side of the connecting block (631), and the claw (632) engages with the limiting plate (55) and the busbar (31).

5. The power distribution cabinet for a dual-current railway ring network as described in claim 4, characterized in that: The water-cooling module (5) further includes a retaining plate (56), which includes a connecting part (561) and a snap-fit ​​part (562), wherein, The connecting part (561) is connected to the first bracket (61), and the connecting part (561) corresponds to the busbar (31) located in the middle. The snap-fit ​​part (562) is disposed on one side of the connecting part (561). The snap-fit ​​part (562) snaps into the busbar (31) and the limiting plate (55), and the snap-fit ​​part (562) abuts against the claw (632) of the locking member (63) of the busbar (31) on both sides.

6. The power distribution cabinet for a dual-current railway ring network as described in claim 4 or 5, characterized in that: The groove (601) includes a first groove (6011), a second groove (6012), and a third groove (6013). The first bracket (61) also has a mounting groove (602). The first groove (6011), the second groove (6012) and the third groove (6013) are all partially formed on the first bracket (61) and partially formed on the second bracket (62); The opening depth of the first groove (6011) on the first bracket (61) is greater than the opening depth of the second groove (6012) and the third groove (6013) on the first bracket (61); Two mounting slots (602) are provided on the first bracket (61), and the mounting slots (602) are provided on the side of the second recess (6012) and the third recess (6013) away from the first recess (6011); The connecting block (631) is fixed in the mounting groove (602), and the claw (632) has a flipping part (6321) that extends toward the second bracket (62) and extends beyond the portion of the first groove (6011) that is opened on the second bracket (62).

7. The power distribution cabinet for a dual-current railway ring network as described in claim 5, characterized in that: It also includes a sliding seat (7), one end of which is slidably connected to the crossbeam (2), and the other end of which is connected to the bracket (6); Multiple water-cooled modules (5) are provided on the busbar group (3), and the multiple water-cooled modules (5) are spaced apart. The crossbeam (2), the connecting group (4) and the sliding seat (7) are all located at the interval between two adjacent water-cooled modules (5).

8. The power distribution cabinet for a dual-current railway ring network as described in claim 7, characterized in that: The connecting part (561) of the card plate (56) is clamped between the first bracket (61) and the sliding seat (7), and the connecting part (561), the first bracket (61), the second bracket (62) and the sliding seat (7) are fixed together by bolts.

9. The power distribution cabinet for a dual-current railway ring network as described in claim 7, characterized in that: One bracket (6) is provided at each end of the water-cooling module (5); The sliding seat (7) is connected to the bracket (6) at the end of one of the water-cooling modules (5), and the sliding seat (7) supports the bracket (6) at the end of the adjacent water-cooling module (5) by a pull plate (71).

10. An assembly method for a power distribution cabinet for a dual-current railway ring network as described in claim 5, characterized in that, Includes the following steps: S1. Insert the guide sleeve (51) of the water-cooling module (5) into the busbar (31); S2. Assemble the first bracket (61) and the second bracket (62) onto the busbar (31), while the limiting plate (55) engages with the first bracket (61); S3. Fold the claw (632) of the locking member (63) to engage the limiting plate (55) and the busbar (31), thereby completing the locking of the water cooling module (5) and the busbar group (3); S4, and connect and fix the bracket (6) to the crossbeam (2); S5. Connect the pipeline of the liquid cooling unit to the connecting pipe (52) of the water cooling module (5); S6. On the cabinet of the power distribution cabinet, a heat dissipation fan or heat dissipation hole is provided corresponding to the heat dissipation plate (54) of the water-cooled module (5).

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