A modular power distribution unit and power distribution system

Abstract

The present invention discloses a modular power distribution unit and power distribution system, wherein the power distribution unit includes: a cable connector, an input module, a plurality of output jack modules, and an end seal; a first power-through hole is provided at the tail of the input module, and power-through holes and conductive copper busbars are provided at the head and tail of the output jack module, respectively, which can be connected to different modules to achieve jack expansion; in addition, the jacks of the output jack module are compatible with different types of pins and can be connected to different types of power plugs. The power distribution system includes: a power distribution unit, a bus duct, and a busbar connector; a conductive copper busbar is provided on the inner wall of the bus duct, and the busbar connector is connected to the conductive copper busbar through a terminal block; the output end of the busbar connector is connected to the power distribution unit; the power distribution unit in the power distribution system can be connected to the bus duct connector or the industrial connector by the input module to achieve compatible applications; the plug-in box can be omitted to improve the economy of the equipment.

Description

Technical Field

[0001] The present invention relates to the field of industrial power distribution, and more particularly to a modular-based power distribution unit and a power distribution system. Background Art

[0002] In the industrial power distribution sector, bus duct systems are used to power equipment. The power distribution system of a bus duct system primarily consists of bus ducts, plug-in boxes, and industrial connectors. The connector section of the bus duct plug-in box is an integrated design. The plug-in box is installed and fixed to one side of the bus duct, and power is supplied to the equipment through the connector at the outlet of the plug-in box. In particular, in the era of rapid development of information technology, bus duct systems and power distribution units are now widely used in industrial power distribution in data centers to power servers and other equipment. Typically, the internal structure of these bus duct shells supports plug-in installation and fixing of plug-in boxes at different positions along the bus duct. The output of the plug-in box can have a fixed connector socket that connects to the input connector of the power distribution unit. Bus duct plug-in boxes can also have output cables and industrial connectors that connect to the input industrial connector of the power distribution unit.

[0003] In the field of data center power distribution, existing power distribution units (PDUs) are typically installed inside server racks and generally adopt an integrated structural design. The PDU's sockets have multiple output jacks (usually C13 and C19 jacks). Due to the fixed number of jacks and the fixed structure of the PDU, it is difficult to flexibly adjust the jack type or increase the number of jacks.

[0004] The busbar plug-in box of the power distribution system often has switches and intelligent management units, and the power distribution unit connected to the power supply equipment also has switches and intelligent management units. The two are connected by industrial connectors, which allows for further cost optimization of the power distribution system. Summary of the Invention

[0005] On the one hand, the present invention aims to overcome the defects that the busbar plug-in box and the power distribution unit of the above-mentioned existing power distribution system adopt a power supply design in which independent devices are connected to each other, and the number and type of output jacks of the power distribution unit are insufficiently flexible in configuration due to different customer requirements, which is not convenient for subsequent adjustment and expansion, and provides a modular power distribution unit.

[0006] The power distribution unit includes: an input module, a plurality of output jack modules;

[0007] One end of the input module is connected to the external power supply, and the other end is provided with a first power-through hole;

[0008] One end of the output jack module is provided with a pin that matches the first power-through hole, and the other end is provided with a second power-through hole that is the same as the input module;

[0009] The input module and the output jack module are connected to each other via a first power-through hole and a pin;

[0010] The plurality of output jack modules are connected in sequence; and adjacent output jack modules are connected to the pins of the adjacent output jack modules via the second power-through holes.

[0011] Preferably, the power distribution unit further comprises a cable connector;

[0012] The cable connector is connected to the input module to achieve connection between the input module and an external power supply.

[0013] Preferably, the power distribution unit further comprises an end seal;

[0014] The end seal matches the second current-passing hole;

[0015] The end seal is provided at the end of the sequentially connected output jack modules and is connected to the second power-through hole of the end. Preferably, the inner wall of the jack of the output jack module is provided with a first buckle, which is used to fix the plug inserted into the socket.

[0016] Preferably, the power distribution unit further includes a second buckle and a buckle kit matching the second buckle;

[0017] The outer contour of the snap-fit ​​kit matches the jack of the output jack module;

[0018] The inner contour of the snap-on kit matches that of other plug models;

[0019] The second buckle is provided on the inner wall of the buckle kit and is used to fix plugs of other models. Preferably, the plug pin is a metal plug pin.

[0020] Preferably, the pins are copper busbar pins.

[0021] Preferably, the power distribution unit further comprises a cable extension connector;

[0022] The cable extension connector includes a cable, a pin connector, and a jack connector;

[0023] One end of the cable is connected to the pin connector, and the other end is connected to the jack connector;

[0024] The pin connector is provided with a jack, which matches the pin of the output jack module; the jack connector is provided with a pin, which matches the jack of the output jack module.

[0025] Preferably, the input module is also provided with an input power distribution switch.

[0026] In a second aspect of the present invention, in order to overcome the defect that a power distribution system is provided with a busbar plug-in box, which makes the power distribution system costly, the present invention provides a power distribution system, the power distribution system comprising: a power distribution unit, a busbar duct, and a busbar plug-in unit;

[0027] The inner wall of the bus duct is provided with a conductive copper bar, which is connected to the external input power supply;

[0028] The input end of the busbar connector is provided with a terminal block that matches the conductive copper busbar, and the input end of the busbar connector is connected to the conductive copper busbar through the terminal block; the output end of the busbar connector is connected to the power distribution unit;

[0029] The power distribution unit includes: an input module, a plurality of output jack modules;

[0030] One end of the input module is connected to an external power supply, and the other end is provided with a first power-through hole;

[0031] One end of the output jack module is provided with a power-through hole identical to that of the input module, and the other end is provided with a pin that matches the power-through hole;

[0032] The input module and the output jack module are connected via power holes and pins;

[0033] The plurality of output jack modules are connected in sequence; and the adjacent output jack modules are connected to the pins via power holes.

[0034] Preferably, the bus duct is a sliding trough type bus duct, and the conductive copper busbar is arranged on the inner wall of the bus duct along the radial direction of the bus duct.

[0035] Preferably, the connection terminals on the busbar connector are clamp-type connection terminals, which can be slidably clamped on the conductive copper busbar.

[0036] Preferably, the connection terminals on the busbar connector are movably arranged.

[0037] Preferably, the busbar connector is provided with at least two sockets matching the wiring terminals, and the wiring terminals are provided with clamps, and after the wiring terminals are inserted into the sockets, they are fixed by the clamps.

[0038] Preferably, the busbar connector is provided with a slide rail, the wiring terminals are provided on the slide rail and can slide along the slide rail, and the wiring terminals adjust their corresponding positions by sliding on the slide rail to achieve connection with the conductive copper busbars of different phase lines.

[0039] Preferably, a first buckle is provided on the inner wall of the jack of the output jack module, and the first buckle is used to fix the plug inserted into the socket.

[0040] Preferably, the power distribution unit further comprises a cable connector; the cable connector is connected to the input module to achieve connection between the input module and an external power supply.

[0041] Preferably, the power distribution unit further includes an end seal; the end seal matches the second power-through hole;

[0042] The end seal is provided at the end of the output jack modules connected in sequence and is connected to the second power-through hole at the end.

[0043] Preferably, the power distribution unit further includes a second buckle and a buckle kit matching the second buckle;

[0044] The outer contour of the snap-fit ​​kit matches the jack of the output jack module;

[0045] The inner contour of the snap-on kit matches that of other plug models;

[0046] The second buckle is arranged on the inner wall of the buckle kit and is used to fix plugs of other models.

[0047] Preferably, the pins are metal pins.

[0048] Preferably, the pins are copper busbar pins.

[0049] Preferably, the power distribution unit further comprises a cable extension connector;

[0050] The cable extension connector includes a cable, a pin connector, and a jack connector;

[0051] One end of the cable is connected to the pin connector, and the other end is connected to the jack connector;

[0052] The pin connector is provided with a jack, which matches the pin of the output jack module; the jack connector is provided with a pin, which matches the jack of the output jack module.

[0053] Preferably, the busbar connector is directly connected to the power distribution unit via a wire, or is connected to the power distribution unit via an industrial connector.

[0054] The present invention provides a modular power distribution unit and power distribution system. The power distribution unit consists of an input module and several output jack modules. The input and output jack modules are flexibly connected via power holes and pins, facilitating subsequent adjustment and expansion of the distribution unit's connection methods, thereby increasing its flexibility. The power distribution unit in the power distribution system can be connected to bus duct connectors or existing industrial connectors via the input module, achieving compatible applications. This eliminates the need for a connector box, improving the equipment's economic efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0055] Figure 1 This is a partial schematic diagram of the power distribution unit described in Example 1.

[0056] Figure 2 This is a schematic diagram of the power distribution unit described in Example 2.

[0057] Figure 3 This is the schematic diagram of the power distribution unit described in Example 2.

[0058] Figure 4 This is a schematic diagram of the jack described in Example 2.

[0059] Figure 5 This is a schematic diagram of the snap-on kit described in Example 2.

[0060] Figure 6 This is a diagram of the clip kit after it is inserted into the socket.

[0061] Figure 7 A schematic diagram of the connector.

[0062] Figure 8 This is a schematic diagram of the power distribution system described in Example 3.

[0063] Figure 9 This is a schematic diagram of the power distribution system described in Example 3.

[0064] Figure 10 This is a schematic diagram of the existing power distribution system.

[0065] Figure 11 This is a schematic diagram of the bus duct.

[0066] Figure 12 This is a schematic diagram of a terminal block with a socket.

[0067] Figure 13 This is a partial schematic diagram of a terminal block with a socket.

[0068] Figure 14 This is a schematic diagram of a terminal block with a slide rail.

[0069] In the figure, 1-power distribution unit, 2-bus duct, 3-busbar connector, 4-plug-in box, 5-industrial connector, 6-server equipment in the rack, 7-connector, 11-cable connector, 12-input module, 13-output jack module, 14-end seal, 151-first power hole, 152-second power hole, 16-pin, 131-jack, 132-first buckle, 133-buckle kit, 134-second buckle, 31-terminal block, 32-socket, 33-slide rail, 311-clip, 71-connector, 72-jack connector, 73-pin connector. DETAILED DESCRIPTION

[0070] The accompanying drawings are for illustrative purposes only and are not to be construed as limiting this patent;

[0071] In order to better illustrate this embodiment, some parts in the drawings may be omitted, enlarged, or reduced, and do not represent the actual product size;

[0072] It is understandable to those skilled in the art that some well-known structures and their descriptions may be omitted in the drawings.

[0073] The technical solution of the present invention is further described below with reference to the accompanying drawings and embodiments.

[0074] Example 1:

[0075] This embodiment provides a modular power distribution unit, such as Figure 1 As shown, the power distribution unit includes: an input module 12, a plurality of output jack modules 13;

[0076] One end of the input module 12 is connected to the external power supply, and the other end is provided with a first power-through hole 151;

[0077] One end of the output jack module 13 is provided with a pin 16 that matches the first power-through hole 151, and the other end is provided with a second power-through hole 152 that is the same as the input module 12;

[0078] The input module 12 and the output jack module 13 are connected to the pin 16 via the first power-through hole 151;

[0079] The plurality of output jack modules 13 are connected in sequence; adjacent output jack modules 13 are connected to the pins 16 of the adjacent output jack modules 13 via the second power holes 152 .

[0080] The power distribution unit consists of an input module and several output jack modules; the input module and the output jack module are flexibly connected through power holes and pins, which facilitates the adjustment and expansion of the subsequent connection method of the distribution unit and improves the flexibility of the distribution unit.

[0081] Example 2:

[0082] This embodiment provides a modular power distribution unit. Figure 1-3 As shown, the power distribution unit includes: a cable connector 11, an input module 12, several output jack modules 13, and an end seal 14;

[0083] One end of the input module 12 is connected to the cable connector 11, and the other end is provided with a first power-through hole 151; the cable connector 11 is connected to the external circuit through a wire;

[0084] One end of the output jack module 13 is provided with a second power-through hole 152 identical to the input module 12, and the other end is provided with a pin 16 that matches the second power-through hole 152:

[0085] It should be noted that the position of the second power-through hole 152 and the position of the pin 16 can be interchanged, and adjacent output jack modules 13 can be connected through the second power-through hole 152 and the pin 16;

[0086] The end seal 14 matches the second electrical hole 152;

[0087] The input module 12, several output jack modules 13, and end seals 14 are connected in sequence; the input module 12 and the output jack module 13 are connected to the pins 16 via the first power-through holes 151; and adjacent output jack modules 13 are connected to the pins 16 via the second power-through holes 152. That is, after the output jack modules 13 are connected in sequence, assume that the first end of the first output jack module 13 includes a pin 16 for connecting to the first power-through hole 151 of the input module 12; the second end of the first output jack module 13 includes a second power-through hole 152 for connecting to the pin of the second output jack module 13. The first end of the last output jack module 13 includes a pin 16 for connecting to the second through hole 152 of the previous output jack module 13. The second end of the last output jack module 13 includes a second power-through hole 152 for connecting to the end seal 14.

[0088] It should be noted that if Figure 3 As shown, Figure 3 This is a schematic diagram of the circuit principles of the power distribution unit described in this embodiment. This embodiment uses a single-phase, three-wire system as an example. The cable connector 11, input module 12, and several output jack modules 13 are sequentially connected using a single-phase, three-wire system. The jacks 131 of the output jack modules 13 are also connected using a single-phase, three-wire system. Each component is connected using corresponding wiring, allowing the power distribution unit to flexibly expand the number of output jacks.

[0089] like Figure 4-6 As shown, a first buckle 132 is provided on the inner wall of the jack of the output jack module, and the first buckle 132 is used to fix the plug inserted into the jack.

[0090] The power distribution unit further includes a second buckle 134 and a buckle kit 133 matching the second buckle 134;

[0091] The outer contour of the buckle kit 133 matches the socket 131 of the output socket module 13;

[0092] The inner contour of the snap-on kit 133 matches that of other types of plugs;

[0093] The second clip 134 is provided on the inner wall of the clip kit 133 and is used to secure plugs of other types. As a specific embodiment, the jack 131 described in this embodiment is compatible with a C13 / C19 jack. The clip kit 133 can be inserted into the jack, and the outer wall of the clip kit 133 fits in place with the inner wall of the jack 131. A C14 plug can be inserted into the clip kit 133. This allows a single jack to serve multiple purposes. Although this embodiment uses a C13 / C19 jack as an example, with a C14 plug inserted into the clip kit 133, in practice, modifications of different sizes can be made as needed.

[0094] The pins 16 in this embodiment are copper busbar pins.

[0095] It should be noted that the pins 16 described in this embodiment are copper bar pins, but are not limited to copper bar pins. They can be copper column pins, iron bar pins, etc. Pins of other shapes and other conductive materials are also within the protection scope required by the present invention.

[0096] The input module 12 is also provided with an input power distribution switch. In addition, the input module 12 may also include a multi-function network port (for communication or other functional sensors), a USB debugging port or other extended function modules, an intelligent monitoring display screen and operation buttons, etc., which are not described here one by one.

[0097] The power distribution unit 1 described in this embodiment is composed of a cable connector 11, an input module 12, several output jack modules 13, and an end seal 14; a first power-through hole 151 is provided at the tail of the input module 12, and a second power-through hole 152 and a conductive copper bus (plug) are provided at the head and tail of the output jack module 13, respectively, which can connect different modules to achieve jack expansion; in addition, the jack 131 of the output jack module 13 is compatible with different types of pins and can be connected to different types of power plugs.

[0098] As a specific example, Figure 7 As shown, the power distribution unit further includes a cable extension connector 7;

[0099] The connector 7 includes a connector 71, a pin connector 73, and a jack connector 72;

[0100] The connector 71 may be a conductor of a fixed physical shape, or a conductive cable, one end of the connector being connected to the pin connector 73 and the other end being connected to the jack connector 72;

[0101] The pin connector 73 is provided with a socket, which matches the pin of the output socket module 13 . The socket connector 72 is provided with a pin, which matches the socket of the output socket module 13 .

[0102] The power distribution unit described in this embodiment consists of an input module, several output jack modules, and end seals; a first power-on hole is provided at the tail of the input module, and a second power-on hole and a conductive copper bus (plug) are provided at the head and tail of the output jack module, respectively, which can be connected to different modules to achieve jack capacity expansion; in addition, the jacks of the output jack module are compatible with different types of pins and can be connected to different types of power plugs.

[0103] Example 3:

[0104] This embodiment provides a power distribution system, such as Figure 8-9 As shown, the power distribution system includes: a power distribution unit 1, a bus duct 2, and a bus connector 3; the power distribution unit in this embodiment can adopt the power distribution unit 1 described in Example 1.

[0105] The inner wall of the bus duct 2 is provided with a conductive copper bus 21, which is connected to the mains electricity;

[0106] The input end of the busbar connector 3 is provided with a wiring terminal 31 matching the conductive copper busbar, and the input end of the busbar connector 3 is connected to the conductive copper busbar 21 through the wiring terminal 31; the output end of the busbar connector 3 is connected to the power distribution unit 1.

[0107] It should be noted that the busbar connector 3 can be directly connected to the power distribution unit 1 through a cable, or can be connected to the power distribution unit 1 through an industrial connector 5, such as a standard IEC60309 industrial connector.

[0108] Traditional power distribution systems such as Figure 10 As shown, the rack 6 is powered by the power distribution unit 1, which is connected to the plug-in box 4 through the industrial connector 5, and then connected to the bus duct 2 through the plug-in box 4. Compared with the traditional power distribution system, the power distribution unit of the present invention can be directly connected to the bus duct through the bus connector, which can save the plug-in box 4 and save costs.

[0109] like Figure 11 As shown, the bus duct 2 is a sliding trough bus duct, and the conductive copper busbar 21 is arranged along the inner wall of the bus duct along the radial direction of the bus duct. The terminal blocks on the bus connector 3 can slide within the bus duct 2, facilitating adjustment of the position of the bus connector 3 and the power distribution unit 1.

[0110] The connection terminals 31 on the busbar connector 3 are clip-type connection terminals that can be slidably clamped on the conductive copper bus 21. By simply moving the position of the connection terminals 31 on the busbar 2, the power distribution unit 1 can be flexibly connected to different positions of the busbar 2.

[0111] The connection terminals 31 on the busbar connector 3 are movable. Figure 5 As shown, the busbar connector 3's terminals 31 feature an adjustable phase design, enabling single-phase commutation. The dotted circles in the figure indicate the adjustable position of the phase line terminals 31. By adjusting the position of the terminals 31, the busbar connector 3 achieves phase adjustment, improving the three-phase balance of the load power supply in the power distribution system.

[0112] The power distribution unit in the power distribution system described in this embodiment can be connected to the bus duct 2 connector by the input module, and can also be connected to the existing industrial connector 5 to achieve compatible applications; the plug-in box 4 can be omitted to improve the economy of the equipment.

[0113] As a specific embodiment, the movable arrangement of the connection terminals 31 on the busbar connector 3 of the present invention will be described below through a specific example.

[0114] like Figure 12-13 As shown, the busbar connector 3 is provided with at least two sockets 32 matching the wiring terminals 31 , and the wiring terminals 31 are provided with clamps 311 . After the wiring terminals 31 are inserted into the sockets 32 , they are fixed by the clamps 311 .

[0115] In this embodiment, there are three wiring terminals 31, namely, a ground wiring terminal, a neutral wiring terminal, and a phase wiring terminal; the at least two sockets are used to connect the positive and negative poles when DC power is supplied; the at least two sockets are used to connect the neutral terminal and the ground terminal when AC power is supplied. The neutral terminal, the ground terminal and the busbar connector 3 can be detachably connected or fixedly connected, and the remaining sockets are used to connect the phase wiring terminals. Adjustment of different phases is achieved by changing the sockets to which the phase terminals are connected.

[0116] In addition, the busbar connector 3 may be provided with a slide rail 33, such as Figure 14 As shown, the grounding terminal and the neutral terminal are fixed on the busbar connector 3, and the phase terminal is provided on the slide rail 33 and can slide along the slide rail 33. The phase terminal can adjust its corresponding position by sliding on the slide rail to achieve connection with the conductive copper busbar of different phase lines.

[0117] It should be noted that this embodiment only illustrates the movable setting of the terminal 31 on the busbar connector 3 of the present invention through the above two specific examples, but is not limited to the above two specific cases. Other methods that can achieve the phase adjustment function by changing the specific position of the terminal 31 on the busbar connector 3 should be within the scope of protection of the present invention.

[0118] The terms used in the drawings to describe positional relationships are for illustrative purposes only and should not be construed as limiting this patent;

[0119] Obviously, the above embodiments of the present invention are merely examples for the purpose of clearly illustrating the present invention, and are not intended to limit the embodiments of the present invention. Those skilled in the art will appreciate that other variations or modifications can be made based on the above description. It is not necessary and impossible to enumerate all embodiments here. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present invention shall be included within the scope of protection of the claims of the present invention.

Claims

1. A modular power distribution unit, characterized in that: The power distribution unit comprises: an input module (12), a plurality of output jack modules (13); One end of the input module (12) is connected to an external power source, and the other end is provided with a first power-through hole (151); One end of the output jack module (13) is provided with a pin (16) that matches the first power-on hole (151), and the other end is provided with a second power-on hole (152) that is the same as the input module (12); The input module (12) and the output jack module (13) are connected to the pin (16) via a first power-on hole (151); The plurality of output jack modules (13) are connected in sequence; adjacent output jack modules (13) are connected to the pins (16) of the adjacent output jack modules (13) via the second power-through holes (152); The inner wall of the socket (131) of the output socket module (13) is provided with a first buckle (132), and the first buckle (132) is used to fix the plug inserted into the socket; The power distribution unit further includes a second buckle (134) and a buckle kit (133) matching the second buckle (134); The outer contour of the buckle kit (133) matches the socket (131) of the output socket module (13); The inner contour of the snap-fit ​​kit (133) matches that of other types of plugs; The second buckle (134) is provided on the inner wall of the buckle kit (133) and is used to fix plugs of other models.

2. A modular power distribution unit according to claim 1, characterized in that: The power distribution unit further includes a cable connector (11); The cable connector (11) is connected to the input module (12) to achieve connection between the input module (12) and an external power supply.

3. A modular power distribution unit according to claim 2, characterized in that: The power distribution unit further includes an end seal (14); The end seal (14) matches the second current-carrying hole (152); The end seal (14) is provided at the end of the sequentially connected output jack modules (13) and is connected to the second power supply hole (152) at the end.

4. A modular power distribution unit according to any one of claims 1 to 3, characterized in that: The power distribution unit further comprises a connector (7); The connector (7) comprises a connecting piece (71), a pin connector (73), and a jack connector (72); One end of the connecting member (71) is connected to the pin connector (73), and the other end is connected to the jack connector (72); The pin connector (73) is provided with a jack, which matches the pin of the output jack module (13); the jack connector (72) is provided with a pin, which matches the jack of the output jack module (13).

5. A power distribution system, characterized in that: The power distribution system comprises: a power distribution unit (1), a bus duct (2), and a bus connector (3); The inner wall of the bus duct (2) is provided with a conductive copper busbar, and the conductive copper busbar is connected to the power supply; The input end of the busbar connector (3) is provided with a wiring terminal that matches the conductive copper busbar, and the input end of the busbar connector (3) is connected to the conductive copper busbar via the wiring terminal; the output end of the busbar connector (3) is connected to the power distribution unit (1); The power distribution unit (1) comprises: Input module (12), several output jack modules (13); One end of the input module (12) is connected to an external power supply, and the other end is provided with a first power-through hole (151); One end of the output jack module (13) is provided with a pin (16) that matches the first power-on hole (151), and the other end is provided with a second power-on hole (152) that is the same as the input module (12); The input module (12) and the output jack module (13) are connected to the pin (16) via a first power-on hole (151); The plurality of output jack modules (13) are connected in sequence; adjacent output jack modules (13) are connected to the pins (16) of the adjacent output jack modules (13) via the second power-through holes (152); The inner wall of the socket (131) of the output socket module (13) is provided with a first buckle (132), and the first buckle (132) is used to fix the plug inserted into the socket; The power distribution unit further includes a second buckle (134) and a buckle kit (133) matching the second buckle (134); The outer contour of the buckle kit (133) matches the socket (131) of the output socket module (13); The inner contour of the snap-fit ​​kit (133) matches that of other types of plugs; The second buckle (134) is provided on the inner wall of the buckle kit (133) and is used to fix plugs of other models.

6. A power distribution system according to claim 5, characterized in that: The bus duct (2) is a sliding trough type bus duct, and the conductive copper busbar is arranged on the inner wall of the bus duct (2) along the radial direction of the bus duct.

7. A power distribution system according to claim 6, characterized in that: The connection terminal (31) on the busbar connector (3) is a clamp-type connection terminal, and the connection terminal (31) can be slidably clamped on the conductive copper busbar.

8. A power distribution system according to claim 7, characterized in that: The connection terminals (31) on the busbar connector (3) are movably arranged.

9. A power distribution system according to any one of claims 5 to 8, characterized in that: The busbar connector (3) is provided with at least two sockets (32) matching the wiring terminals (31), and the wiring terminals (31) are provided with clamps (311). After the wiring terminals (31) are inserted into the sockets (32), they are fixed by the clamps (311).

10. A power distribution system according to claim 9, characterized in that: The busbar connector (3) is provided with a slide rail (33), and the wiring terminal (31) is provided on the slide rail (33) and can slide along the slide rail (33). The wiring terminal (31) adjusts its corresponding position by sliding on the slide rail (33) to achieve connection with the conductive copper busbars of different phase lines.

11. A power distribution system according to claim 10, characterized in that: The inner wall of the socket (131) of the output socket module (13) is provided with a first buckle (132), and the first buckle (132) is used to fix a plug inserted into the socket (32).

12. A power distribution system according to claim 11, characterized in that: The power distribution unit further includes a cable connector (11); The cable connector (11) is connected to the input module (12) to achieve connection between the input module (12) and an external power supply.

13. A power distribution system according to claim 11 or 12, characterized in that: The power distribution unit further includes an end seal (14); The end seal (14) matches the second current-carrying hole (152); The end seal (14) is provided at the end of the sequentially connected output jack modules (13) and is connected to the second power supply hole (152) at the end.

14. A power distribution system according to claim 13, characterized in that: The power distribution unit (1) further includes a second buckle (134) and a buckle kit (133) matching the second buckle (134); The outer contour of the buckle kit (133) matches the socket (131) of the output socket module (13); The inner contour of the snap-fit ​​kit (133) matches that of other types of plugs; The second buckle (134) is provided on the inner wall of the buckle kit (133) and is used to fix plugs of other models.

15. A power distribution system according to claim 14, characterized in that: The pins (16) are metal pins.

16. A power distribution system according to claim 14 or 15, characterized in that: The power distribution unit (1) further comprises a connector (7); The connector (7) comprises a connecting piece (71), a pin connector (73), and a jack connector (72); One end of the connecting member (71) is connected to the pin connector (73), and the other end is connected to the jack connector (72); The pin connector (73) is provided with a jack, which matches the pin of the output jack module (13); the jack connector (72) is provided with a pin, which matches the jack of the output jack module (13).

17. A power distribution system according to claim 16, characterized in that: The busbar connector (3) is directly connected to the power distribution unit (1) via a wire, or is connected to the power distribution unit (1) via an industrial connector.

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