Power distribution device and data center

Abstract

Embodiments of the present application provide a power distribution device and a data center. The power distribution device comprises: a housing, an accommodating cavity is defined in the housing; a copper busbar arranged in the accommodating cavity, the copper busbar being electrically connected to a power supply cable of a power distribution apparatus; and a wiring module arranged in the accommodating cavity, the wiring module being electrically connected to the copper busbar by means of an internal cable, and being electrically connected to an electrical device by means of an external cable. According to the power distribution device provided by the embodiments of the present application, the wiring convenience is improved, and the working reliability of the power distribution device is enhanced.

Description

Power distribution device and data center

[0001] The present application claims priority from the Chinese patent application No. 202410448057.1 filed on April 12, 2024, and entitled "Power distribution device and data center", the content of which is incorporated herein by reference in its entirety.

[0002] The present application claims priority from the Chinese patent application No. 202420765268.3 filed on April 12, 2024, and entitled "Power distribution device and data center", the content of which is incorporated herein by reference in its entirety. TECHNICAL FIELD

[0003] The present application relates to the technical field of computing devices, and in particular, to a power distribution device and a data center. BACKGROUND

[0004] In the related art, a device for supplying power to servers in a data center usually adopts a PDU (Power Distribution Unit), which usually connects many branch cables from a terminal to each socket unit, and the server power supply line connects the power supply to the server through the socket unit of the PDU. However, due to the limited size of the PDU and the dense internal cables, the space is poorly ventilated, and when running at full capacity for a long time, the temperature rises too high, which may cause the cables to burn. SUMMARY

[0005] Embodiments of the present application provide a power distribution device and a data center to solve or alleviate one or more technical problems in the prior art.

[0006] As an embodiment of one aspect of the present application, a power distribution device is provided, comprising: a housing, an accommodation cavity being defined in an interior of the housing; a busbar copper bar, disposed in the accommodation cavity, and electrically connected with a power supply cable of a power distribution device; and a wiring module, disposed in the accommodation cavity, and electrically connected with the busbar copper bar through an internal wiring cable, and electrically connected with an electrical equipment through an external wiring cable.

[0007] In an embodiment, the number of busbar copper bars is multiple, and at least two of the multiple busbar copper bars are arranged in a first direction.

[0008] In an embodiment, at least two of the multiple busbar copper bars are arranged in a second direction, and the second direction is perpendicular to the first direction.

[0009] In an embodiment, the first direction is a horizontal direction, and the second direction is a vertical direction.

[0010] In an embodiment, the plurality of busbars includes a neutral busbar and a ground busbar, and further includes one or all of a first phase busbar, a second phase busbar, and a third phase busbar.

[0011] In an embodiment, the plurality of busbars includes a neutral busbar and a ground busbar, and further includes one or all of a first phase busbar, a second phase busbar, and a third phase busbar.

[0012] In an embodiment, the plurality of busbars includes a neutral busbar and a ground busbar, and further includes one or all of a first phase busbar, a second phase busbar, and a third phase busbar.

[0013] In an embodiment, the second connection end of each connection unit is electrically connected to one end of an external cable through a fastener, and the other end of the external cable is electrically connected to an electrical device.

[0014] In an embodiment, the shell further comprises at least one wire outlet through hole that communicates the accommodation cavity with the outside, and the other end of the external cable extends to the outside of the accommodation cavity through the corresponding wire outlet through hole.

[0015] In an embodiment, the other ends of the plurality of external cables extend to the outside of the accommodation cavity through one wire outlet through hole.

[0016] In an embodiment, each wire outlet through hole is provided with a locking connector for fixing the external cable passing through the wire outlet through hole.

[0017] In an embodiment, the power distribution device further comprises at least one fixing seat mounted on the shell, and the fixing seat is used to support the busbar.

[0018] In an embodiment, the fixing seat comprises a first bearing part connected to the shell and a second bearing part connected to the first bearing part, and the second bearing part is used to bear the busbar.

[0019] In an embodiment, when the number of busbars is a plurality, the first bearing part is further used to bear part of the busbars, and the second bearing part comprises a support column corresponding to each of the remaining busbars, and the busbar is connected to the end of the corresponding support column.

[0020] In an embodiment, the busbar copper bars are fixed to the end of the support column by fasteners.

[0021] In an embodiment, the first bearing part is made of conductive material, the second bearing part is made of insulating material, and part of the busbar copper bars are ground busbars.

[0022] In an embodiment, the first bearing part is a U-shaped structure composed of a first bending section, a second bending section, and a third bending section, the first bending section and the third bending section are respectively connected to the two side edges of the second bending section, and the first bending section and the third bending section are oppositely arranged, wherein the first bending section is connected to the housing by fasteners, and the third bending section is connected to the second bearing part by fasteners.

[0023] In an embodiment, the fixing seats are multiple and are arranged in the third direction, and the third direction is perpendicular to the first direction and the second direction.

[0024] In an embodiment, the ratio of the interval of the two adjacent busbar copper bars in the first direction to the size of the busbar copper bar in the first direction is 1 to 2.

[0025] In an embodiment, the ratio of the interval of the two adjacent busbar copper bars in the second direction to the size of the busbar copper bar in the second direction is 3 to 7.

[0026] In an embodiment, the busbar copper bars are provided with second wiring holes for electrically connecting with the power distribution cables of the power distribution equipment by fasteners.

[0027] In an embodiment, the wiring module and the plurality of busbar copper bars are arranged in the second direction.

[0028] In an embodiment, an isolation plate is arranged between the wiring module and the busbar copper bars, and the isolation plate is made of transparent and insulating material.

[0029] In an embodiment, the power distribution device further comprises at least one socket unit, each socket unit is electrically connected with one or all of the first phase busbar, the second phase busbar, and the third phase busbar, the neutral busbar, and the ground busbar of the busbar copper bars.

[0030] In an embodiment, the housing comprises a body and a cover plate, the housing defines a receiving cavity and an opening communicating with the receiving cavity, and the cover plate is rotatably connected with the housing for opening and closing the opening.

[0031] In an embodiment, a support rod is rotatably connected between the cover plate and the body, and the end of the support rod is fixed to the body when the cover plate is in the open position.

[0032] In an embodiment, the cover plate is multiple and is arranged in the third direction.

[0033] In an embodiment, the housing is provided with mounting flaps on opposite sides in the third direction, and the mounting flaps are provided with mounting through holes for the fasteners to pass through.

[0034] In an embodiment, the top wall of the housing is provided with a plurality of heat dissipation through holes arranged in an array.

[0035] In an embodiment, any one of the two side walls of the housing arranged opposite in the third direction is provided with a cable through hole for the power supply cable to extend into the accommodation cavity, so that the power supply cable is electrically connected with the busbar.

[0036] In an embodiment, the edge of the cable through hole is sleeved with a gasket, and the gasket is made of soft material.

[0037] In an embodiment, the power distribution device further comprises an indicator light arranged on the housing, and the indicator light is used to light up when the busbar is connected to the power supply.

[0038] In an embodiment, a main switch is arranged between the busbar and the power supply cable of the power distribution equipment, and the main switch is used to turn on or turn off the electrical connection between the busbar and the power supply cable; and / or, a separate switch is arranged between each wiring unit and the busbar, and the separate switch is used to turn on or turn off the electrical connection between the wiring unit and the busbar.

[0039] In an embodiment, the power distribution device further comprises a control module and a communication module, and the control module is in electrical communication with the main switch and / or the separate switch through the communication module, and the control module is used to control the opening and closing of the main switch and / or the separate switch.

[0040] In an embodiment, the wiring unit is provided with an electric quantity sensor for detecting the electric quantity output by the wiring unit, and the communication module is in electrical communication with the electric quantity sensor for transmitting the detection result of the electric quantity sensor to the terminal device.

[0041] In an embodiment, the power distribution device further comprises a temperature sensor for detecting the temperature of at least one of the busbar, the connection between the busbar and the power supply cable, the connection between the busbar and the inner wiring cable, and the wiring unit, and the communication module is in electrical communication with the temperature sensor for transmitting the detection result of the temperature sensor to the terminal device.

[0042] In an embodiment, the communication module adopts RS485, Modbus, Profibus or TCP / IP communication protocol.

[0043] As an embodiment of another aspect of the present application, a data center is provided, comprising at least one power consumer and the power distribution device of the above-mentioned embodiment of the present application. According to the power distribution device of the embodiment of the present application, by adopting the bus copper bar as the bus, on the one hand, it is conducive to reducing the overall temperature rise of the power distribution device and improving the power supply stability, and on the other hand, it is conducive to prolonging the service life of the power distribution device, and the material of the bus copper bar can be recycled, thereby reducing the depreciation cost. Secondly, by spacing the plurality of bus copper bars in the first direction, sufficient electrical clearance can be ensured between the plurality of bus copper bars, so as to reserve sufficient wiring space for the plurality of inner wiring cables when wiring the plurality of bus copper bars and the wiring module, on the one hand, the convenience of wiring is improved, and on the other hand, the probability of contact between the inner wiring cable and other bus copper bars is reduced, thereby improving the working reliability of the power distribution device.

[0044] The above summary is intended to illustrate only and is not intended to limit the application in any way. Further aspects, embodiments and features of the application will be apparent from the drawings and the following detailed description. BRIEF DESCRIPTION OF DRAWINGS

[0045] In the drawings, like reference numerals will be used to refer to like or similar elements throughout several views. The drawings are not necessarily to scale, the emphasis instead being placed upon illustrating the principles of the application. It should be understood that the drawings are merely depictions of some embodiments of the application and should not be construed as limiting the scope of the application.

[0046] FIG. 1 shows a structural schematic diagram of a power distribution device according to an embodiment of the present application;

[0047] FIG. 2 shows an exploded structural schematic diagram of a power distribution device according to an embodiment of the present application;

[0048] FIG. 3 shows a structural schematic diagram of a plurality of bus copper bars of a power distribution device according to an embodiment of the present application;

[0049] FIG. 4 shows a structural schematic diagram of a plurality of bus copper bars of a power distribution device according to an embodiment of the present application;

[0050] FIG. 5 shows a structural schematic diagram of a fixing seat of a power distribution device according to an embodiment of the present application;

[0051] FIG. 6 shows a schematic diagram of a plurality of bus copper bars of a power distribution device according to an embodiment of the present application being fixedly connected on a fixing seat;

[0052] FIG. 7 shows a schematic diagram of the relative position relationship between a wiring module and a plurality of bus copper bars of a power distribution device according to an embodiment of the present application;

[0053] Fig. 8 shows a structural schematic diagram of the power distribution device in one perspective according to an embodiment of the present application;

[0054] Fig. 9 shows a structural schematic diagram of the power distribution device in another perspective according to an embodiment of the present application;

[0055] Fig. 10 shows a bottom view of the power distribution device according to an embodiment of the present application;

[0056] Fig. 11 shows a side view of the power distribution device according to an embodiment of the present application;

[0057] Fig. 12 shows a top view of the power distribution device according to an embodiment of the present application.

[0058] Legend: power distribution device 1; housing 10; heat dissipation through hole 10a; body 11; cable through hole 11a; mounting folded ear 111; mounting through hole 112; cover plate 12; first part 121; second part 122; gasket 13; indicator light 14; busbar 20; wiring hole 20a; first phase busbar 21; second phase busbar 22; third phase busbar 23; neutral busbar 24; ground busbar 25; fixing seat 30; first bearing part 31; first bent section 311; second bent section 312; third bent section 313; second bearing part 32; support column 32a; wiring module 40; wiring unit 41; connector 50; socket unit 60. DETAILED DESCRIPTION

[0059] In the following, only certain exemplary embodiments are simply described. As those skilled in the art can recognize, the described embodiments can be modified in various different ways without departing from the spirit or scope of the present application. Therefore, the drawings and the description are considered to be exemplary in nature rather than limiting.

[0060] The power distribution device 1 according to an embodiment of the present application is described below with reference to Figs. 1-12.

[0061] Fig. 1 shows a structural schematic diagram of the power distribution device 1 according to an embodiment of the present application, and Fig. 2 shows an exploded structural schematic diagram of the power distribution device 1 according to an embodiment of the present application. As shown in Figs. 1 and 2, the power distribution device 1 comprises a housing 10, a busbar 20 and a wiring module 40. Specifically, the interior of the housing 10 defines an accommodation cavity. The busbar 20 is arranged in the accommodation cavity, and the busbar 20 is electrically connected with the power supply cable of the power distribution equipment. The wiring module 40 is arranged in the accommodation cavity, and the wiring module 40 is electrically connected with the busbar 20 through an inner wiring cable, and is electrically connected with the electrical equipment through an outer wiring cable.

[0062] In the embodiment of the present application, the power distribution device 1 is used to provide power supply for the power consuming devices in the data center, and can also be used to supply power for the switch or temporary load. The switch is used to provide network service for the power consuming devices such as computing devices, and the temporary load can be electronic products, lighting devices or other arbitrary devices.

[0063] In the embodiment of the present application, the number of the busbars 20 can be one or more. FIG. 3 shows a structure schematic diagram of the plurality of busbars 20 of the power distribution device 1 according to the embodiment of the present application. As shown in FIG. 3, in some optional examples of the present application, the number of the busbars 20 can be multiple, and the plurality of busbars 20 are arranged at intervals in the first direction.

[0064] Exemplarily, the busbar 20 can be made of electrolytic copper with a purity of 99.9%. The size of the busbar 20 can be set according to the total current carrying capacity of all the wiring units 41 included in the wiring module 40. The greater the total current carrying capacity is, the greater the size of the busbar 20 is. The skilled in the art can set it flexibly according to actual needs, which is not limited in the embodiment of the present application.

[0065] In the embodiment of the present application, the wiring module 40 and the busbar 20 are arranged at intervals in the accommodating cavity. The wiring module 40 can include a plurality of wiring units 41. Each wiring unit 41 has a first wiring end and a second wiring end. The first wiring end is used to be electrically connected with the busbar 20 through the inner wiring cable. The second wiring end is used to be electrically connected with the power consuming device through the outer wiring cable. In this way, the electrical connection between the busbar 20 and the power consuming device is realized, so as to supply power for the power consuming device.

[0066] According to the power distribution device 1 of the embodiment of the present application, the busbar 20 is used as the busbar. On the one hand, it is conducive to reducing the overall temperature rise of the power distribution device 1 and improving the stability of power supply. On the other hand, it is conducive to prolonging the service life of the power distribution device 1. Moreover, the material of the busbar 20 can be recycled, thereby reducing the depreciation cost.

[0067] In one embodiment, the number of the busbars 20 is multiple, and at least two of the plurality of busbars 20 are arranged at intervals in the first direction.

[0068] It should be noted that the first direction can be any direction, for example, it can be the vertical direction or the horizontal direction after the power distribution device 1 is installed. That is, the plurality of busbars 20 can be arranged at intervals in the vertical direction, or can be arranged at intervals in the horizontal direction.

[0069] By spacing the plurality of busbars 20 apart in the first direction, sufficient electrical clearance between the plurality of busbars 20 can be ensured, so as to reserve sufficient wiring space for the plurality of inner wiring cables when wiring the plurality of busbars 20 and the wiring module 40, thereby improving the convenience of wiring on one hand, and reducing the probability of contact between the inner wiring cables and other busbars 20, thereby improving the working reliability of the power distribution device 1.

[0070] FIG. 4 shows a structural schematic diagram of the plurality of busbars 20 of the power distribution device 1 according to an embodiment of the present application. As shown in FIG. 4, in an embodiment, the plurality of busbars 20 are spaced apart in a second direction, which is perpendicular to the first direction.

[0071] In the embodiment of the present application, the first direction can be any direction, and the second direction can be another direction perpendicular to the first direction.

[0072] In some examples, as shown in FIGS. 3 and 4, the first direction can be a horizontal direction, specifically a length direction or a width direction of the power distribution device 1; and the second direction can be a vertical direction, specifically a height direction of the power distribution device 1. The plurality of busbars 20 are spaced apart in the length direction or the width direction of the power distribution device 1, and are spaced apart in the height direction of the power distribution device 1.

[0073] More specifically, the structure of the busbar 20 can adopt a flat plate, and the plane in which each busbar 20 is located can be arranged perpendicularly to the second direction. For example, the second direction can be a vertical direction, and the planes in which the plurality of busbars 20 are located can be arranged perpendicularly to each other, i.e., the planes in which the plurality of busbars 20 are located are arranged parallel to the horizontal plane.

[0074] In an embodiment, the plurality of busbars 20 can include one or all of a first phase bus 21, a second phase bus 22, a third phase bus 23, a neutral bus 24, and a ground bus 25.

[0075] In some examples, the plurality of busbars 20 include a first phase bus 21, a second phase bus 22, a third phase bus 23, a neutral bus 24, and a ground bus 25. The power distribution device 1 according to an embodiment of the present application can adopt a three-phase five-wire AC mode. Specifically, among the plurality of busbars 20, three busbars 20 can be electrically connected to three-phase power lines (L1, L2, L3) respectively to form the first phase bus 21, the second phase bus 22, and the third phase bus 23, one busbar 20 can be electrically connected to a neutral line (N) to form the neutral bus 24, and another busbar 20 can be electrically connected to a ground line (P) to form the ground bus 25. In this way, three-phase power supply of the power distribution device 1 can be achieved.

[0076] In addition, in some other examples, the power distribution device 1 can also be used for single-phase power supply. For example, in the plurality of bus copper bars 20, any one of the first phase bus 21, the second phase bus 22 and the third phase bus 23, together with the neutral line and the ground line, can constitute a single-phase power supply.

[0077] In one embodiment, the number of bus copper bars 20 is a plurality, each bus copper bar 20 is provided with at least one first wiring hole, the wiring module 40 comprises at least one wiring unit 41; the first wiring end of each wiring unit 41 is electrically connected to one end of a plurality of inner wiring cables through a fastener, and the other end of the plurality of inner wiring cables is respectively electrically connected to at least part of the bus copper bars 20 through the fastener arranged in the first wiring hole.

[0078] Optionally, the plurality of bus copper bars 20 includes a neutral bus 24 and a ground bus 25, and also includes one or all of the first phase bus 21, the second phase bus 22 and the third phase bus 23; the first wiring end of each wiring unit 41 is electrically connected to one end of a plurality of inner wiring cables through a fastener, and the other end of the plurality of inner wiring cables is respectively electrically connected to one or all of the first phase bus 21, the second phase bus 22, the third phase bus 23, the neutral bus 24 and the ground bus 25 through the fastener arranged in the first wiring hole.

[0079] For example, the plurality of wiring units 41 includes a first wiring unit and a second wiring unit, the input end of the first wiring unit is respectively electrically connected to any one of the first phase bus 21, the second phase bus 22 and the third phase bus 23, the neutral bus 24 and the ground bus 25, and the second wiring unit is respectively electrically connected to the first phase bus 21, the second phase bus 22, the third phase bus 23, the neutral bus 24 and the ground bus 25.

[0080] In addition, the electrical connection between one end of the inner wiring cable and the first end of the wiring unit 41 can also be achieved by plug-in or snap-in mode, which is not limited in the present application.

[0081] Optionally, the second wiring end of each wiring unit 41 is electrically connected to one end of an outer wiring cable through a fastener, and the other end of the outer wiring cable is electrically connected to the electrical equipment.

[0082] For example, the fastener can be a metal screw, one end of the outer wiring cable is electrically connected to the second wiring end through the metal screw, and the other end of the outer wiring cable is electrically connected to the electrical equipment and extends out of the shell 10.

[0083] Optionally, the shell 10 is also provided with at least one wire outlet through hole communicating the accommodation cavity with the outside, and the other end of the outer wiring cable extends out of the accommodation cavity through the corresponding wire outlet through hole.

[0084] Exemplarily, the plurality of wiring units 41 are arranged side by side in the third direction. In the embodiment of the present application, the third direction can be a direction perpendicular to the first direction and the second direction, and specifically can be a length direction of the power distribution device 1. The plurality of outgoing wire through holes are arranged one by one corresponding to the plurality of wiring units 41, so that the external wire cable connected to the second wiring end of the wiring unit 41 can extend to the outside of the shell 10 through the corresponding outgoing wire through hole.

[0085] In some optional examples of the present application, the other ends of the plurality of external wire cables can extend to the outside of the accommodating cavity through one outgoing wire through hole. In this way, the number of outgoing wire through holes arranged on the shell 10 can be reduced, and the processing difficulty of the shell 10 is reduced.

[0086] Optionally, as shown in FIG. 3, the ratio of the interval between the two adjacent bus copper bars 20 in the first direction to the size of the bus copper bar 20 in the first direction is 1 to 2.

[0087] In the embodiment of the present application, the first direction can be the width direction of the power distribution device 1 (i.e., the front-rear direction in the figure), and the width direction of the bus copper bar 20 is arranged parallel to the width direction of the power distribution device 1. The size of the bus copper bar 20 in the first direction can be understood as the width size of the bus copper bar 20.

[0088] Exemplarily, the ratio between the interval between the two adjacent bus copper bars 20 in the first direction and the width size of the bus copper bar 20 can be 1 to 2. Preferably, the ratio between the interval between the two adjacent bus copper bars 20 in the first direction and the width size of the bus copper bar 20 can be 1.5.

[0089] In some specific examples, the width size of the bus copper bar 20 can be 30 mm, and the interval between the two adjacent bus copper bars 20 in the first direction can be 45 mm.

[0090] It should be noted that, in the case that the interval between the two adjacent bus copper bars 20 in the first direction is too large, for example, the ratio of the size of the bus copper bar 20 in the first direction is greater than 2, then the plurality of bus copper bars 20 will occupy too much space in the first direction, thereby causing the width size of the power distribution device 1 to be too large and occupy too much installation space. In the case that the interval between the two adjacent bus copper bars 20 in the first direction is too small, for example, the ratio of the size of the bus copper bar 20 in the first direction is less than 1, then the wiring space between the two adjacent bus copper bars 20 will be too small, thereby causing inconvenience in wiring between the bus copper bar 20 and the wiring module 40.

[0091] Therefore, by setting the ratio of the spacing between the two adjacent busbars 20 in the first direction to the size of the busbar 20 in the first direction to be 1-2, it is not only beneficial to reduce the size of the power distribution device 1 and thus reduce the occupation of the installation space, but also convenient for wiring between the busbar 20 and the wiring module 40.

[0092] Optionally, the ratio of the spacing between the two adjacent busbars 20 in the second direction to the size of the busbar 20 in the second direction is 3-7.

[0093] In the embodiments of the present application, the second direction can be the height direction of the power distribution device 1 (i.e. the up-down direction in the figure), the thickness direction of the busbar 20 is parallel to the height direction of the power distribution device 1, and the size of the busbar 20 in the second direction can be the thickness size of the busbar 20.

[0094] For example, the ratio between the spacing between the two adjacent busbars 20 in the second direction and the height size of the busbar 20 can be 3-7. Preferably, the ratio between the spacing between the two adjacent busbars 20 in the second direction and the height size of the busbar 20 can be 5.

[0095] In some specific examples, the thickness size of the busbar 20 can be 5mm, and the spacing between the two adjacent busbars 20 in the second direction can be 25mm.

[0096] It should be noted that if the spacing between the two adjacent busbars 20 in the second direction is too large, for example, the ratio of the size of the busbar 20 in the second direction is greater than 7, then the multiple busbars 20 in the second direction will occupy too much space, resulting in the height size of the power distribution device 1 being too large and occupying too much installation space; if the spacing between the two adjacent busbars 20 in the second direction is too small, for example, the ratio of the size of the busbar 20 in the second direction is less than 3, then the wiring space between the two adjacent busbars 20 will be too small, which will bring inconvenience to the wiring between the busbar 20 and the wiring module 40.

[0097] Therefore, by setting the ratio of the spacing between the two adjacent busbars 20 in the second direction to the size of the busbar 20 in the second direction to be 3-7, it is not only beneficial to reduce the size of the power distribution device 1 and thus reduce the occupation of the installation space, but also convenient for wiring between the busbar 20 and the wiring module 40.

[0098] In one embodiment, the busbar 20 is also provided with a second wiring hole for electrically connecting with the power distribution cable of the power distribution equipment through a fastener.

[0099] Exemplarily, the second wiring hole can be arranged adjacent to the edge of the busbar copper bar 20 to reduce the length of the power distribution cable extending into the accommodation cavity and improve the convenience of wiring. The fastener can be a metal piece with conductive properties, for example, a metal screw.

[0100] FIG. 5 shows a structural schematic diagram of the fixing seat 30 of the power distribution device 1 according to an embodiment of the present application, and FIG. 6 shows a schematic diagram of the fixing connection of a plurality of busbar copper bars 20 on the fixing seat 30. In an implementation, as shown in FIGS. 5 and 6, the power distribution device 1 further includes at least one fixing seat 30, which is installed on the shell 10 and used to support the busbar copper bars 20.

[0101] Exemplarily, the fixing seat 30 includes a plurality of support columns 32a arranged corresponding to the plurality of busbar copper bars 20, and the busbar copper bars 20 are connected to the end portions of the corresponding support columns 32a, wherein the plurality of support columns 32a are different in length in the second direction.

[0102] Optionally, the fixing seat 30 includes a first bearing part 31 and a second bearing part 32, the first bearing part 31 is connected to the shell 10, and the second bearing part 32 is connected to the first bearing part 31 and used to bear the busbar copper bars 20.

[0103] Exemplarily, the fixing seat 30 is arranged in the accommodation cavity and fixedly connected to the shell 10 by the fastener. The fixing seat 30 can include the first bearing part 31 and the second bearing part 32, the first bearing part 31 is fixedly connected to the inner wall surface of the shell 10, and the second bearing part 32 is fixedly connected to the side of the first bearing part 31 away from the inner wall of the shell 10.

[0104] Optionally, in the case where the number of busbar copper bars 20 is a plurality, the first bearing part 31 is further used to bear part of the busbar copper bars 20, and the second bearing part 32 includes a support column 32a arranged corresponding to each of the remaining part of the busbar copper bars 20, and the busbar copper bars 20 are connected to the end portions of the corresponding support columns 32a. The busbar copper bars 20 supported by the support columns 32a of the second bearing part 32 can be the grounding busbar 25.

[0105] Further, the first bearing part 31 is a U-shaped structural member composed of a first bending section 311, a second bending section 312, and a third bending section 313, the first bending section 311 and the third bending section 313 are respectively connected to the two side edges of the second bending section 312, and the first bending section 311 and the third bending section 313 are oppositely arranged, wherein the first bending section 311 is connected to the shell 10 by the fastener, and the third bending section 313 is connected to the second bearing part 32 by the fastener.

[0106] In this way, the first bearing part 31 has a certain deformation capacity in the two directions, so that in the case that the plurality of bus copper bars 20 are subjected to stress from the second direction, the stress can be buffered by the deformation of the first bearing part 31, and the stress between the bus copper bars 20 and the inner wall of the shell 10 is dispersed, thereby protecting the plurality of bus copper bars 20.

[0107] Exemplarily, the third bending section 313 of the first bearing part 31 is provided with a connecting hole, and the grounding bus 25 is fixedly connected with the connecting hole through a metal fastener, so as to fixedly connect the grounding bus 25 to the third bending section 313. The first bearing part 31 can be made of a conductive material, so as to electrically connect the grounding bus 25 with the shell 10, thereby realizing the leakage protection function of the grounding bus 25.

[0108] Further, the second bearing part 32 can include a connecting piece and a plurality of support columns 32a, the connecting piece is used to fixedly connect with the first bearing part 31, and the plurality of support columns 32a are protruded from the second bearing part 32 in a direction away from the inner wall of the shell 10, and the plurality of support columns 32a are arranged in the first direction.

[0109] In some specific examples, the plurality of support columns 32a are arranged in the first direction. The second bearing part 32 includes a first support column, a second support column, a third support column and a fourth support column, the first support column, the second support column, the third support column and the fourth support column are sequentially arranged in the first direction, and the sizes of the first support column, the second support column, the third support column and the fourth support column in the first direction are sequentially reduced. Wherein, the end of the first support column is used to fixedly connect the first phase bus 21 through a fastener, the end of the second support column is used to fixedly connect the second phase bus 22 through a fastener, the end of the third support column is used to fixedly connect the third phase bus 23 through a fastener, and the end of the fourth support column is used to fixedly connect the neutral bus 24 through a fastener. Wherein, the fastener can be a screw.

[0110] Optionally, as shown in FIG. 6, the fixing seat 30 is a plurality of and arranged in the third direction. The third direction is perpendicular to the first direction and the second direction.

[0111] In the embodiment of the present application, the third direction can be the length direction of the power distribution device 1 (i.e. the left-right direction in the figure).

[0112] Exemplarily, the plurality of fixing seats 30 are arranged side by side and spaced apart in the length direction of the power distribution device 1, the first support columns of the plurality of fixing seats 30 are arranged side by side and spaced apart in the third direction for collectively fixedly connecting the first phase busbar 21, the second support columns of the plurality of fixing seats 30 are arranged side by side and spaced apart in the third direction for collectively fixedly connecting the second phase busbar 22, the third support columns of the plurality of fixing seats 30 are arranged side by side and spaced apart in the third direction for collectively fixedly connecting the third phase busbar 23, the fourth support columns of the plurality of fixing seats 30 are arranged side by side and spaced apart in the third direction for fixedly connecting the neutral busbar 24, and the second bearing portions 32 of the plurality of fixing seats 30 are arranged side by side and spaced apart in the third direction for collectively fixedly connecting the ground busbar 25.

[0113] Optionally, the first bearing portion 31 can be made of a conductive material, and the second bearing portion 32 can be made of an insulating material.

[0114] It should be noted that the specific material of the second bearing portion 32 is not limited in the embodiments of the present application, and can be selected accordingly by those skilled in the art according to actual conditions, for example, can be made of ceramic, polytetrafluoroethylene (PTFE) or polyether ether ketone (PEEK) and other high-temperature-resistant insulating materials.

[0115] In this way, short circuit between the plurality of busbar copper bars 20 can be avoided, and the reliability and safety of the power distribution device 1 can be improved.

[0116] FIG. 7 shows a schematic view of the relative positional relationship between the wiring module 40 of the power distribution device 1 and the plurality of busbar copper bars 20. As shown in FIG. 7, optionally, the wiring module 40 and the plurality of busbar copper bars 20 are arranged spaced apart in the second direction (i.e., the up-down direction in the figure).

[0117] Exemplarily, the wiring module 40 and the plurality of busbar copper bars 20 are arranged spaced apart in the height direction of the power distribution device 1. Specifically, the wiring module 40 can be arranged on the lower side of the plurality of busbar copper bars 20, and the wiring module 40 can be fixedly connected to the bottom wall of the housing 10 by fasteners. The plurality of busbar copper bars 20 are fixedly connected to the top wall of the housing 10 and located on the upper side of the wiring module 40 by the plurality of fixing seats 30. In this way, the electrical isolation between the plurality of busbar copper bars 20 and the wiring module 40 can be achieved.

[0118] In one embodiment, an isolation plate is arranged between the wiring module 40 and the busbar copper bars 20.

[0119] Exemplarily, the isolation plate is made of a transparent and insulating material, for example, a transparent acrylic plate. The isolation plate is detachably mounted in the accommodating cavity and located between the wiring module 40 and the plurality of busbar copper bars 20.

[0120] In this way, on one hand, when parts such as screws and the like on the plurality of bus copper bars 20 fall off, the isolation plates can play a role of receiving, avoiding the parts from directly falling on the wiring module 40 and causing a short circuit, on the other hand, during maintenance, the plurality of bus copper bars 20 can be physically isolated, avoiding the maintenance personnel from touching the bus copper bars 20 by hand, thereby playing a role of safety protection.

[0121] In an embodiment, the second wiring end of the wiring unit 41 is electrically connected with the ring-shaped wiring end of the external cable through the conductive piece.

[0122] Illustratively, the second wiring end of the wiring unit 41 is provided with a fastening hole matched with the conductive piece, for inserting and fixedly connecting the conductive piece, wherein the end of the external cable is provided with a ring-shaped wiring end, the ring-shaped wiring end is sleeved on the conductive piece and is pressed on the second wiring end of the wiring unit 41 by the conductive piece, thereby realizing the fixed and electrical connection between the second wiring end of the wiring unit 41 and the ring-shaped wiring end of the external cable.

[0123] Through the above-mentioned embodiments, on one hand, the wiring difficulty of the wiring unit 41 and the external cable is reduced, on the other hand, through the fastening cooperation of the ring-shaped wiring end and the conductive piece, the probability of loosening of the external cable and the wiring unit 41 is reduced, the fixing effect of the external cable is improved, and the external cable can also play a certain pulling role, avoiding the external cable from exerting excessive pressure on the lower parts.

[0124] FIGS. 8 and 9 respectively show structural schematic diagrams of the power distribution device 1 from different perspectives. As shown in FIGS. 8 and 9, in an embodiment, the power distribution device 1 further comprises a plurality of connectors 50, the connectors 50 are correspondingly arranged with the wiring units 41, and the connectors 50 have plug-in holes corresponding to the first wiring ends of the wiring units 41.

[0125] Illustratively, the plurality of connectors 50 are detachably connected to the bottom wall of the shell 10 and located outside the accommodating cavity. The connectors 50 are correspondingly arranged with the second wiring ends of the wiring units 41, and the connectors 50 are provided with through holes for the ring-shaped wiring ends of the external cables to pass through to extend into the accommodating cavity and electrically connect with the second wiring ends of the corresponding wiring units 41.

[0126] In some optional examples, the connectors 50 can adopt waterproof connectors, so as to avoid water vapor from entering the inside of the accommodating cavity through the connectors 50, and improve the waterproof performance of the power distribution device 1.

[0127] In some preferred examples, the connectors 50 can adopt locking connectors, and each outlet through hole on the shell 10 is provided with a locking connector, the locking connector being used for fixing the external cable passing through the outlet through hole.

[0128] Thus, the fixing effect of the external cable on the shell 10 is improved.

[0129] In an embodiment, as shown in FIGS. 8 and 9, the power distribution device 1 further comprises at least one socket unit 60, each of which is electrically connected to any one of the first phase bus 21, the second phase bus 22 and the third phase bus 23, the neutral bus 24 and the ground bus 25, respectively.

[0130] Exemplarily, the socket unit 60 is arranged on the bottom wall of the shell 10 and located outside the accommodating cavity, for supplying power to the switch and other temporary load devices. The socket unit 60 can be electrically connected to the corresponding wiring unit 41 of the wiring module 40, and the corresponding wiring unit 41 can be electrically connected to one or all of the first phase bus 21, the second phase bus 22 and the third phase bus 23, the neutral bus 24 and the ground bus 25, respectively.

[0131] In addition, the number and specifications of the socket unit 60 can be specifically set by those skilled in the art according to actual conditions, and the embodiments of the present application do not make specific limitations thereon. In terms of distance, the number of socket units 60 can be set to two, and the output current can be 10A.

[0132] In an embodiment, the power distribution device 1 can further comprise a fuse box, and the socket unit 60 can be connected to the busbar copper bar 20 through the fuse box, so as to prevent short circuit from affecting the busbar copper bar 20, thereby avoiding affecting the power supply to the server module.

[0133] FIG. 10 shows a bottom view of the power distribution device 1 according to an embodiment of the present application, FIG. 11 shows a side view of the power distribution device 1 according to an embodiment of the present application, and FIG. 12 shows a top view of the power distribution device 1 according to an embodiment of the present application. As shown in FIGS. 10 to 12, in an embodiment, the shell 10 comprises a body 11 and a cover plate 12, the shell 10 defines an accommodating cavity and an opening communicating with the accommodating cavity, and the cover plate 12 is rotatably connected with the shell 10, for opening and closing the opening.

[0134] Exemplarily, the opening is defined by the front side of the body 11, the cover plate 12 comprises a first part 121 and a second part 122 which are mutually connected at an angle, the lower side edge of the first part 121 is connected with the upper side edge of the second part 122, and the upper side edge of the first part 121 is rotatably connected to the front side plate of the body 11 through a hinge. In the case where the cover plate 12 is in the closed position, the two side edges on the left and right sides of the first part 121 are respectively overlapped with the front side edges of the left side plate and the right side plate of the body 11, the two side edges on the left and right sides of the second part 122 are respectively overlapped with the lower side edges of the left side plate and the right side plate of the body 11, and the lower side edge of the second part 122 is overlapped with the front side edge of the bottom plate of the body 11.

[0135] In addition, in the embodiments of the present application, the number of the cover plates 12 can be one or multiple. For example, the number of the cover plates 12 can be multiple, and the multiple cover plates 12 are arranged side by side and spaced apart in the third direction. The third direction can be the length direction of the power distribution device 1.

[0136] According to the above-mentioned embodiments, by arranging the cover plates 12 rotatably connected with the body 11, the opening can be closed and opened, and the staff can conveniently maintain the components in the accommodating cavity through the opening by opening the cover plates 12.

[0137] Optionally, a support rod is rotatably connected between the cover plate 12 and the body 11, and the end of the support rod is fixed to the body 11 when the cover plate 12 is in the open position.

[0138] For example, the first end of the support rod is rotatably connected with the inner wall of the shell 10, the cover plate 12 is provided with a sliding groove, and the end of the sliding groove is formed with a clamping groove, and the second end of the support rod is slidably arranged in the sliding groove. When the cover plate 12 is rotated to the open position, the second end of the support rod is clamped in the clamping groove to fix and support the cover plate 12.

[0139] In one embodiment, as shown in FIGS. 8 and 9, the body 11 is provided with mounting ears 111 on opposite sides in the third direction, respectively. The mounting ears 111 are provided with mounting through holes 112 for the fasteners to pass through.

[0140] For example, the body 11 is provided with mounting ears 111 on opposite sides in the length direction of the power distribution device 1, respectively. Specifically, the mounting ears 111 can adopt a flat plate structure, and the plane where the mounting ears 111 are located is perpendicular to the first direction. The mounting ears 111 are provided with mounting through holes 112 for the fasteners to pass through and fixedly connected with external equipment. The fasteners can be screws, and the external equipment can be a wall surface or other equipment, specifically, a mounting surface of the power distribution device 1.

[0141] Through the above-mentioned embodiments, the mounting and fixing of the power distribution device 1 can be achieved, and through the two mounting ears 111 arranged oppositely, the connection reliability and stability of the power distribution device 1 can be improved.

[0142] In one embodiment, as shown in FIGS. 1 and 2, the top wall of the shell 10 is provided with a plurality of arrayed heat dissipation through holes 10a.

[0143] For example, the heat dissipation through holes 10a penetrate the top wall of the shell 10 in the thickness direction of the top wall of the shell 10 to communicate the accommodating cavity with the external space, so that the heat in the accommodating cavity is conducted to the external space through the heat dissipation through holes 10a to achieve heat dissipation of the power distribution device 1.

[0144] In an embodiment, as shown in FIG. 8, the housing 10 is provided with a cable through hole 11a in any one of the two oppositely arranged side walls in the third direction, and the cable through hole 11a is used for the power supply cable to extend into the accommodation cavity, so that the power supply cable is electrically connected with the busbar copper bar 20.

[0145] Exemplarily, the left side wall or the right side wall of the housing 10 is provided with a cable through hole 11a, and the cable through hole 11a penetrates the left side wall or the right side wall in the thickness direction of the left side wall or the right side wall of the housing 10 to communicate the accommodation cavity with the external space, so that the wiring end of the power supply cable can extend into the accommodation cavity and be electrically connected with the plurality of busbar copper bars 20. It should be noted that in the embodiment of the present application, the shape of the cable through hole 11a is not specifically limited, and those skilled in the art can specifically set it according to the actual situation, for example, it can be set as a circular shape.

[0146] Optionally, the edge of the cable through hole 11a is sleeved with a gasket 13, and the gasket 13 is made of soft material.

[0147] Exemplarily, the gasket 13 is embedded in the edge of the cable through hole 11a, and the gasket 13 can be made of rubber material or other soft material.

[0148] Through the above embodiment, it can be avoided that the insulation skin of the outer surface of the power supply cable is damaged or even broken due to the direct contact between the edge of the cable through hole 11a and the power supply cable, thereby protecting the power supply cable.

[0149] In an embodiment, the power distribution device 1 further comprises an indicator lamp 14 arranged on the housing 10, and the indicator lamp 14 is used to light up when the plurality of busbar copper bars 20 are connected to the power supply. Wherein, the indicator lamp 14 can be arranged on the outer side surface of the cover plate 12,

[0150] In this way, when the upper power supply equipment (such as a power distribution cabinet) is closed to supply power, the operator or the staff can be prompted by the indicator lamp 14 that the power distribution device 1 has been powered on, thereby reducing the probability of external occurrence and improving the safety performance of the power distribution device 1.

[0151] In an embodiment, a main switch is arranged between the busbar copper bar 20 and the power supply cable, and the main switch is used to turn on or turn off the electrical connection between the busbar copper bar 20 and the power supply cable; and / or, a separate switch is arranged between each wiring unit 41 and the busbar copper bar 20, and the separate switch is used to turn on or turn off the electrical connection between the wiring unit 41 and the busbar copper bar 20.

[0152] Exemplarily, the power input side of the plurality of bus copper bars 20 is provided with a main switch for turning on or off the electrical connection between the bus copper bars 20 and the power supply cable. In addition, the first wiring end of the wiring unit 41 is provided with a sub switch for turning on or off the electrical connection between the bus copper bars 20 and the wiring unit 41. The main switch and the sub switch can both be a circuit breaker of a corresponding type.

[0153] Through the above embodiment, the control of the power input of the plurality of bus copper bars 20 and the control of the power input of each wiring unit 41 are realized, so that the corresponding loop can be turned on or off flexibly according to the needs, which is convenient for the staff to overhaul the power distribution device 1.

[0154] Optionally, the power distribution device 1 further comprises a control module and a communication module, the control module is in electrical communication with the main switch and / or the sub switch through the communication module, and the control module is used to control the main switch and / or the sub switch to open or close. In addition, in other examples of the present application, the main switch and / or the sub switch can also be manually operated.

[0155] In the embodiment of the present application, the communication module is also used to communicate with an external terminal device, for receiving a control signal of the main switch or the sub switch sent by the external terminal device; in response to the control signal, the control module controls the main switch and / or the sub switch to open or close, thereby realizing remote control of the power distribution device 1.

[0156] In some specific examples, the communication module can adopt RS485, Modbus, Profibus or TCP / IP communication protocol. Those skilled in the art can flexibly select a corresponding communication protocol to realize the electrical communication between the communication module and the external terminal device according to the actual situation.

[0157] Optionally, the wiring unit 41 is provided with an electric quantity sensor for detecting the electric quantity output by the wiring unit 41, and the communication module is in electrical communication with the electric quantity sensor for transmitting the detection result of the electric quantity sensor to the terminal device.

[0158] It can be understood that the electric quantity sensor is a detection device that can sense the information of the measured electric quantity and can convert the sensed information into an electrical signal or other required form of information output according to a certain rule. The electric quantity sensor can transmit the detection result to the communication module and to the terminal device through the communication module.

[0159] In this way, the electric quantity output by each wiring unit 41 can be read remotely and in real time online, which is conducive to real-time monitoring of the working condition of the power distribution device 1.

[0160] Optionally, the power distribution device 1 further comprises a temperature sensor configured to detect the temperature of at least one of the bus copper bars 20, the connection between the bus copper bars 20 and the power supply cables, the connection between the bus copper bars 20 and the internal connecting cables, and the connecting unit 41. The communication module is in electrical communication with the temperature sensor to transmit the detection result of the temperature sensor to the terminal device.

[0161] In the embodiments of the present application, the position of the temperature sensor is not specifically limited, and can be flexibly set by those skilled in the art according to the actual situation, for example, it can be set at a position with a large amount of heat generated inside the power distribution device 1. Preferably, a corresponding temperature sensor can be arranged at each of the plurality of bus copper bars 20, the connection between the bus copper bars 20 and the power supply cables, and the connecting unit 41 to detect the temperature at the above-mentioned positions respectively. The temperature sensor can transmit the detection result to the communication device and to the terminal device through the communication device.

[0162] In this way, the temperature inside the power distribution device 1 can be remotely and real-timely monitored, thereby facilitating real-time monitoring of the working condition of the power distribution device 1.

[0163] As another aspect of the present application, an example of a computing assembly is also provided, which comprises at least one electrical equipment and the power distribution device of the above-mentioned embodiments of the present application.

[0164] In the embodiments of the present application, the computing assembly can further comprise a containing device for containing the at least one electrical equipment, and the power distribution device can be integrally arranged inside the containing device with the plurality of electrical equipment, or can be arranged outside the containing device. The containing device can be a liquid cooling device, i.e., the containing device contains a cooling working medium for immersing the electrical equipment to achieve liquid cooling of the electrical equipment.

[0165] According to the computing assembly of the embodiments of the present application, by using the power distribution device of the above-mentioned embodiments of the present application, on the one hand, the assembly convenience of the computing assembly is improved, and the installation cost is reduced, and on the other hand, the working reliability and stability of the computing assembly are improved.

[0166] As another aspect of the present application, an example of a data center is also provided, which comprises at least one power distribution device 1 of the above-mentioned embodiments of the present application. The number of power distribution devices 1 can be flexibly set according to the actual situation, which is not specifically limited in the embodiments of the present application.

[0167] The other components of the data center of the above-mentioned embodiments can be various technical solutions known and to be known by those skilled in the art, which are not described in detail here.

[0168] In the description of the present application, it should be understood that the orientation or positional relationship indicated by terms such as "central", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like is based on the orientation or positional relationship shown in the drawings, and is only for the purpose of facilitating the description of the present application and simplifying the description, and does not indicate or imply that the device or element referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as a limitation of the present application.

[0169] In addition, the terms "first", "second" are only for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the technical features indicated. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the present application, the meaning of "multiple" is two or more, unless otherwise specifically limited.

[0170] In the present application, unless otherwise specifically defined and limited, the terms "mounting", "connecting", "connecting", "fixing" and the like should be understood broadly, for example, it can be fixed connection, or detachable connection, or integral; it can be mechanical connection, or electrical connection, or communication; it can be directly connected, or indirectly connected through intermediate medium, or the communication between two elements or the interaction relationship between two elements. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0171] In the present application, unless otherwise specifically defined and limited, the first feature "above" or "below" the second feature can include that the first and second features are in direct contact, or that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the first feature "above", "above" and "above" the second feature includes that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The first feature "below", "below" and "below" the second feature includes that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

[0172] The disclosure above provides many different embodiments or examples for realizing different structures of the present application. In order to simplify the disclosure of the present application, the components and settings of specific examples are described above. Of course, they are merely examples and are not intended to limit the present application. In addition, the present application may repeat reference numbers and / or reference letters in different examples. Such repetition is for the purpose of simplicity and clarity and does not in itself indicate the relationship between the various embodiments and / or settings discussed.

[0173] The above are only specific embodiments of the present application, but the scope of protection of the present application is not limited thereto. Any person skilled in the art can easily conceive of various modifications or substitutions within the technical scope disclosed in this application, and such modifications or substitutions should be included in the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A power distribution device, characterized in that: include: a housing, wherein an accommodating cavity is defined in the interior of the housing; A busbar copper bar is arranged in the accommodating cavity, and the busbar copper bar is electrically connected to the power supply cable of the power distribution equipment; A wiring module is provided in the accommodating cavity, and the wiring module is electrically connected to the busbar copper bar through an internal cable, and is electrically connected to the electrical equipment through an external cable.

2. The power distribution device according to claim 1, wherein: There are multiple busbar copper bars, and at least two of the multiple busbar copper bars are spaced apart in the first direction.

3. The power distribution device according to claim 2, wherein: At least two of the plurality of busbar copper bars are spaced apart in a second direction, and the second direction is perpendicular to the first direction.

4. The power distribution device according to claim 3, wherein: The first direction is a horizontal direction, and the second direction is a vertical direction.

5. The power distribution device according to claim 3, wherein: The plurality of busbar copper bars include a neutral busbar and a ground busbar, and also include one or all of a first phase busbar, a second phase busbar, and a third phase busbar.

6. The power distribution device according to claim 1, wherein: There are multiple busbars, each of which is provided with at least one first wiring hole, and the wiring module includes at least one wiring unit; The first connection terminal of each wiring unit is electrically connected to one end of several internal cables through a fastener, and the other ends of several internal cables are electrically connected to at least part of the busbar copper bars through a fastener.

7. The power distribution device according to claim 6, wherein: The plurality of busbar copper bars include a neutral busbar and a ground busbar, and also include one or all of a first phase busbar, a second phase busbar, and a third phase busbar; The first connection terminal of each wiring unit is electrically connected to one end of the multiple internal cables through a fastener, and the other ends of the multiple internal cables are electrically connected to the first connection holes of the first phase bus, the second phase bus, the third phase bus, one or all of the neutral bus, and the ground bus through fasteners.

8. The power distribution device according to claim 7, wherein: The second terminal of each wiring unit is electrically connected to one end of an external cable via a fastener, and the other end of the external cable is electrically connected to an electrical device.

9. The power distribution device according to claim 8, wherein: The housing is further provided with at least one wire outlet through-hole communicating with the accommodating cavity and the outside, and the other end of the external cable extends to the outside of the accommodating cavity through the corresponding wire outlet through-hole.

10. The power distribution device according to claim 9, wherein: The other ends of the plurality of external cables extend out of the accommodating cavity through a common cable outlet hole.

11. The power distribution device according to claim 9, wherein: Each of the outlet through holes is provided with a locking connector, and the locking connector is used to fix an external cable passing through the outlet through hole.

12. The power distribution device according to claim 3, wherein: Also includes: At least one fixing seat is installed on the housing, and the fixing seat is used to support the busbar copper bar.

13. The power distribution device according to claim 12, wherein: The fixing seat comprises: A first bearing part and a second bearing part, wherein the first bearing part is connected to the shell, the second bearing part is connected to the first bearing part, and the second bearing part is used to bear the busbar copper bar.

14. The power distribution device according to claim 13, wherein: When there are multiple busbars, the first bearing portion is also used to bear part of the busbars, and the second bearing portion includes support columns arranged in one-to-one correspondence with the remaining busbars, and the busbars are connected to the ends of the corresponding support columns.

15. The power distribution device according to claim 14, wherein: The busbar copper bar is fixed to the end of the support column by a fastener.

16. The power distribution device according to claim 14, wherein: The first bearing portion is made of conductive material, the second bearing portion is made of insulating material, and part of the busbar copper bar is a grounding busbar.

17. The power distribution device according to claim 13, wherein: The first bearing part is a U-shaped structural member composed of a first bending section, a second bending section and a third bending section, the first bending section and the third bending section are respectively connected to the two opposite side edges of the second bending section, and the first bending section and the third bending section are arranged opposite to each other, wherein the first bending section is connected to the shell through a fastener, and the third bending section is connected to the second bearing part through a fastener.

18. The power distribution device according to claim 12, wherein: There are multiple fixing seats and they are spaced apart in a third direction, and the third direction is perpendicular to the first direction and the second direction respectively.

19. The power distribution device according to claim 2, wherein: The ratio of the distance between two adjacent busbar copper bars in the first direction to the size of the busbar copper bar in the first direction is 1 to 2.

20. The power distribution device according to claim 3, wherein: The ratio of the distance between two adjacent busbar copper bars in the second direction to the size of the busbar copper bar in the second direction is 3 to 7.

21. The power distribution device according to claim 1, wherein: The busbar copper bar is provided with a second wiring hole for electrically connecting to the distribution cable of the power distribution equipment through a fastener.

22. The power distribution device according to claim 1, wherein: The junction module and the plurality of busbar copper bars are spaced apart in the second direction.

23. The power distribution device according to claim 22, wherein: An isolation plate is provided between the wiring module and the busbar copper bar, and the isolation plate is made of a transparent and insulating material.

24. The power distribution device according to claim 1, wherein: Also includes: At least one socket unit, each of the socket units is electrically connected to one or all of the first phase busbar, the second phase busbar, and the third phase busbar of the plurality of busbar copper bars, the neutral busbar, and the grounding busbar.

25. The power distribution device according to any one of claims 1 to 24, characterized in that: The shell includes a body and a cover plate. The shell defines the accommodating cavity and an opening communicating with the accommodating cavity. The cover plate is rotatably connected to the shell for opening and closing the opening.

26. The power distribution device according to claim 25, wherein: A support rod is rotatably connected between the cover plate and the body, and an end of the support rod is fixed to the body when the cover plate is in an open position.

27. The power distribution device according to claim 25, wherein: The cover plates are multiple and spaced apart in the third direction.

28. The power distribution device according to claim 1, wherein: The shell is provided with mounting ears on two opposite sides in the third direction, and the mounting ears are provided with mounting through holes for fasteners to pass through.

29. The power distribution device according to any one of claims 1 to 24, characterized in that: The top wall of the shell is provided with a plurality of heat dissipation holes arranged in an array.

30. The power distribution device according to any one of claims 1 to 24, characterized in that: Any one of the two side walls of the housing that are opposite to each other in the third direction is provided with a cable through-hole, and the cable through-hole is used for allowing the power supply cable to extend into the accommodating cavity so as to electrically connect the power supply cable to the busbar copper bar.

31. The power distribution device according to claim 30, wherein: A gasket is sleeved on the edge of the cable through hole, and the gasket is made of soft material.

32. The power distribution device according to any one of claims 1 to 24, characterized in that: Also includes: An indicator light is provided on the housing and is used to light up when the busbar copper bar is connected to power.

33. The power distribution device according to any one of claims 6 to 24, characterized in that: A main switch is provided between the busbar and the power supply cable of the power distribution equipment, and the main switch is used to conduct or disconnect the electrical connection between the busbar and the power supply cable; and / or, a sub-switch is provided between each wiring unit and the busbar, and is used to conduct or disconnect the electrical connection between the wiring unit and the busbar.

34. The power distribution device according to claim 33, wherein: It also includes a control module and a communication module. The control module electrically communicates with the main switch and / or the sub-switch through the communication module. The control module is used to control the opening and closing of the main switch and / or the sub-switch.

35. The power distribution device according to claim 34, wherein: The wiring unit is provided with a power sensor for detecting the power output by the wiring unit. The communication module is in electrical communication with the power sensor for transmitting the detection result of the power sensor to the terminal device.

36. The power distribution device according to claim 34, wherein: It also includes a temperature sensor, which is used to detect the temperature of at least one of the busbar copper bar, the connection between the busbar copper bar and the power supply cable, the connection between the busbar copper bar and the internal cable, and the wiring unit. The communication module electrically communicates with the temperature sensor to transmit the detection result of the temperature sensor to the terminal device.

37. The power distribution device according to claim 34, wherein: The communication module adopts RS485, Modbus, Profibus or TCP / IP communication protocol.

38. A data center, characterized in that: The device comprises at least one electrical device and at least one power distribution device according to any one of claims 1 to 37.

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