A small current bus duct suitable for data center rack power distribution

Abstract

The application relates to a small-current bus duct suitable for power distribution of a data center rack, comprising a bus main assembly, the bus main assembly comprising a bus shell, a lower opening, a closing plate, a connecting head and copper bars, the lower side of the bus shell is provided with the lower opening, the closing plate is installed on the lower opening, the inner cavity of the bus shell is provided with the copper bars, one end of the copper bars is connected with the connecting head, one end of the bus shell is provided with a connecting port, a plurality of connecting heads are arranged on the connecting port, the connecting heads correspond to the copper bars one by one, and the connecting heads are fixedly connected with the corresponding copper bars. The U-shaped elastic frame, the spring piece and the spring one are used to make the butt joint of the copper bars and the copper plate and the copper convex block more firm, prevent loosening, and improve the stability of the electric connection.

Description

Technical Field

[0001] This invention belongs to the field of low-current busbar trunking, specifically a low-current busbar trunking suitable for power distribution in data center racks. Background Technology

[0002] Data centers have enormous power demands, and rack power distribution units require small busbars for power transmission. However, existing busbar technologies often suffer from unstable connection interfaces, insufficient insulation, and issues such as loosening or poor contact during plugging and mating. This is especially problematic in high-density rack environments, easily leading to electrical connection interruptions, increased short-circuit risks, and inconvenient installation and maintenance. These shortcomings affect the reliability and security of data centers, necessitating a low-current busbar suitable for data center rack power distribution. Summary of the Invention

[0003] The purpose of this section is to outline some aspects of embodiments of the present invention and to briefly describe some preferred embodiments. Simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of these documents; however, such simplifications or omissions should not be construed as limiting the scope of the invention.

[0004] Given the following technical problems in the existing technology: the connection between the busbar shell and the plug-in box and the starting box is not firm, which can easily lead to poor contact or detachment of the copper busbars; the insulation isolation measures are insufficient, and direct contact can easily occur between adjacent copper busbars or components, increasing short circuits and safety hazards; the lack of elastic fixing and squeezing mechanisms during plugging and docking results in poor connection stability and inability to adapt to vibration or thermal expansion and contraction environments; the installation and enclosure process is complicated and lacks efficient support and isolation mechanisms, affecting the overall assembly efficiency and electrical performance.

[0005] To solve the above technical problems, the present invention provides the following technical solution: a low-current busbar trunking suitable for power distribution in data center racks, comprising a busbar main assembly, the busbar main assembly comprising a busbar housing, a lower opening, a sealing plate, connectors and copper busbars, the lower side of the busbar housing having a lower opening, a sealing plate installed in the lower opening, several copper busbars being arranged in the inner cavity of the busbar housing, one end of the copper busbars being connected to connectors, one end of the busbar housing having a connection port, several connectors being inserted into the connection port, the connectors corresponding one-to-one with the copper busbars, and the connectors being fixedly connected to the corresponding copper busbars;

[0006] A plug-in box assembly is provided at the top of the busbar housing, and a starting box assembly is provided at the other end of the busbar housing.

[0007] As a preferred technical solution for low-current busbar trunking suitable for data center rack power distribution, the plug-in box assembly includes a plug-in box, plug-in side plates, connecting posts, connecting seats, connecting holes, and wiring structures. Two plug-in side plates are provided on the upper side of the busbar housing at intervals. The plug-in side plates are plugged into the plug-in box. A connecting post is provided at the bottom of the plug-in box. A connecting hole is opened on the connecting post. A connecting seat is movably plugged into the connecting hole. A connecting hole is opened in the middle of the copper busbar. The central axes of all connecting holes are collinear. Several connecting seats are equally spaced on the connecting post. The connecting seats are connected to the wiring structures. The connecting post is plugged into the connecting hole. The wiring structures on the connecting seat abut against the inner wall of the connecting hole.

[0008] Several external locking sleeves are fitted onto the busbar housing, and the plug-in side plate extends into the plug-in box and is fixedly connected to the plug-in box.

[0009] As a preferred technical solution for low-current busbar trunking suitable for data center rack power distribution, the wiring structure further includes copper rods and graphite rods. Copper rods and graphite rods are provided on the connector, with the copper rods and graphite rods spaced apart. Both ends of the copper rods and both ends of the graphite rods extend out of the connector. Connecting wires are provided on the parts of the graphite rods and copper rods located in the inner cavity of the connecting column. The copper rods and graphite rods are connected to the inner wall of the connecting hole.

[0010] The arrangement of multiple copper rods, graphite rods, and connecting wires optimizes the wiring structure. When some of the copper rods and graphite rods fail, the others can still work normally, thereby improving the fault tolerance rate. The plug-in box assembly enables quick connection with the busbar housing, facilitating the branching of the busbar in the middle.

[0011] As a preferred technical solution for low-current busbar trunking suitable for data center rack power distribution, the wiring structure further includes an elastic ring and a movable sealing plate. The portion of the connector located within the inner cavity of the connector post is provided with a movable sealing plate, and an elastic ring is connected between the movable sealing plate and the inner wall of the inner cavity of the connector post.

[0012] The elastic ring pulls the connector out of the connecting hole and presses against the inner wall of the connecting hole on the copper busbar.

[0013] As a preferred technical solution for low-current busbar trunking suitable for data center rack power distribution, the starting box assembly includes a starting box, a middle square tube, and docking structures. A middle square tube is provided on one side of the starting box. One end of the busbar housing is docked with the middle square tube. The busbar housing is sleeved with one end of the outer locking sleeve. The middle square tube is sleeved with the other end of the outer locking sleeve. Copper busbars extend into the inner cavity of the middle square tube. Several docking structures are provided inside the middle square tube. The docking structures are correspondingly inserted into the copper busbars.

[0014] A spring pulls the U-shaped elastic bracket on the copper plate, which is then attached to the copper busbar. The outer locking sleeve is fitted outside the busbar housing, which can constrain the sealing plate within the lower opening.

[0015] The elastic isolation sleeve is fitted onto the outside of the connector.

[0016] The outer locking sleeve is fixedly connected to the busbar housing or intermediate square tube by bolts.

[0017] As a preferred technical solution for low-current busbar trunking suitable for data center rack power distribution, the docking structure includes a U-shaped elastic frame, copper plates, copper protrusions, and springs. The inner cavity of the middle square tube is provided with a U-shaped elastic frame, and the inner cavity of the middle square tube is layered with several copper plates. One end of the copper plate is provided with a U-shaped elastic frame, and the U-shaped elastic frame corresponds to and is inserted into the copper busbar. Each of the two sides of the U-shaped elastic frame is provided with a copper protrusion, and the outer side of the copper busbar is connected to the corresponding copper protrusion. Each of the two sides of the U-shaped elastic frame is provided with an abutment plate, which abuts against the copper busbar. The abutment plate is inclined. One end of the U-shaped elastic frame near the copper plate is provided with a spring, and the two ends of the spring are connected to the two sides of the U-shaped elastic frame. The other end of the copper plate extends into the inner side of the starting box.

[0018] The elasticity of the spring pulls the two sides of the U-shaped elastic frame closer together.

[0019] As a preferred technical solution for low-current busbar trunking suitable for data center rack power distribution, the inner cavity of the busbar housing is provided with several isolation support mechanisms. The isolation support mechanisms are sleeved with copper busbars. The isolation support mechanisms include partition plates and insulating partition plates. An insulating partition plate is provided at each end of the partition plate. There are several partition plates arranged at intervals. The partition plates are inserted between two adjacent copper busbars.

[0020] When the copper busbar is inserted into the U-shaped elastic frame and comes into contact with the abutment plate, it will squeeze the abutment plate and cause it to swing, making the U-shaped elastic frame clamp the copper busbar even tighter.

[0021] As a preferred technical solution for low-current busbar trunking suitable for data center rack power distribution, the docking structure also includes an insulating sleeve, which is wrapped around the end of the U-shaped elastic frame away from the copper plate. The material of the insulating sleeve is EPDM rubber.

[0022] The insulating sleeve can separate two adjacent U-shaped elastic frames, preventing direct contact between them.

[0023] As a preferred technical solution for low-current busbar trunking suitable for data center rack power distribution, the starting box assembly also includes a spring and a limiting ring. A limiting ring is provided on the copper plate, and a spring is sleeved on the outside of the copper plate. One end of the spring is connected to the limiting ring, and the other end of the spring is fixedly connected to the connecting platform.

[0024] The elastic force of the U-shaped flexible frame clamps the copper busbar through copper protrusions, ensuring the stability of the electrical connection between the copper plate and the copper busbar.

[0025] As a preferred technical solution for low-current busbar trunking suitable for power distribution in data center racks, the connection port of the busbar housing is provided with several elastic isolation sleeves, and the circumferential surface of the elastic isolation sleeves is connected to the inner wall of the connection port.

[0026] The elastic isolation sleeve is made of rubber and isolates the connector from the busbar housing.

[0027] The beneficial effects of a low-current busbar trunking suitable for data center rack power distribution according to the present invention are as follows: Enhanced connection stability: By using a U-shaped elastic frame, spring and spring 1, the connection between the copper busbar and the copper plate and copper protrusion is more secure, preventing loosening and improving the stability of the electrical connection.

[0028] Improved insulation performance: The isolation support mechanism, including insulating partitions, elastic isolation sleeves, and insulating sleeves, effectively separates adjacent components, avoiding direct contact and short circuit risks; Facilitates installation and maintenance: The bolt connection design of the lower opening and the closing plate simplifies assembly; The plug-in method of the external locking sleeve and connecting post ensures quick docking;

[0029] The flexible ring and movable enclosed disc provide compression locking to ensure a secure connection between the wiring structure and the copper busbar; improve electrical transmission efficiency: the arrangement of multiple copper rods, graphite rods and connecting wires optimizes the wiring structure, reduces contact resistance, and increases fault tolerance. The plug-in box assembly enables quick connection to the busbar housing, facilitating branching in the middle of the busbar trunking. Attached Figure Description

[0030] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Wherein:

[0031] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0032] Figure 2 This is a schematic diagram of the front structure of the present invention;

[0033] Figure 3 This is a schematic diagram of the cross-sectional structure of the connecting column of the present invention;

[0034] Figure 4 For the present invention Figure 2 A partially enlarged structural diagram of section B;

[0035] Figure 5 For the present invention Figure 2 A magnified schematic diagram of part A in the middle section;

[0036] Figure 6This is a schematic diagram showing the positional relationship between the copper busbar and the connecting hole in this invention;

[0037] Figure 7 For the present invention Figure 2 A magnified schematic diagram of part C in the middle section;

[0038] Figure 8 This is a schematic diagram showing the positional relationship between the separator plate and the insulating partition plate of the present invention.

[0039] Reference numerals: 100, Busbar main assembly; 101, Busbar shell; 102, Lower opening; 103, Enclosure plate; 104, Connector; 105, Outer locking sleeve; 106, Partition plate; 107, Insulating partition plate; 108, Elastic isolation sleeve; 109, Copper busbar; 110, Connecting hole; 200, Plug-in box assembly; 201, Plug-in box; 202, Plug-in side plate; 203, Connecting post; 204, Connecting seat ; 205, Elastic ring; 206, Copper rod; 207, Graphite rod; 208, Connecting hole; 209, Movable enclosing disc; 300, Starting box assembly; 301, Starting box; 302, Intermediate square tube; 303, Copper plate; 304, Spring 1; 305, Limiting ring; 306, U-shaped elastic frame; 307, Insulating sleeve; 308, Copper protrusion; 309, Abutment plate; 310, Spring leaf; 311, Connecting platform. Detailed Implementation

[0040] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the specific embodiments of the present invention will be described in detail below with reference to the accompanying drawings.

[0041] Many specific details are set forth in the following description in order to provide a full understanding of the invention. However, the invention may also be practiced in other ways different from those described herein, and those skilled in the art can make similar extensions without departing from the spirit of the invention. Therefore, the invention is not limited to the specific embodiments disclosed below.

[0042] Secondly, the term "one embodiment" or "embodiment" as used herein refers to a specific feature, structure, or characteristic that may be included in at least one implementation of the present invention. The phrase "in one embodiment" appearing in different places in this specification does not necessarily refer to the same embodiment, nor is it a single or selective embodiment that is mutually exclusive with other embodiments.

[0043] Secondly, the present invention is described in detail with reference to the schematic diagrams. When detailing the embodiments of the present invention, for ease of explanation, the cross-sectional views illustrating the device structure may be partially enlarged, not according to the usual scale. Furthermore, the schematic diagrams are merely examples and should not limit the scope of protection of the present invention. In addition, actual fabrication should include three-dimensional spatial dimensions of length, width, and depth.

[0044] like Figures 1-8 As shown, the present invention proposes a low-current busbar trunking suitable for data center rack power distribution, including a busbar main assembly 100. The busbar main assembly 100 includes a busbar housing 101, a lower opening 102, a sealing plate 103, a connector 104, and copper busbars 109. The lower opening 102 is provided on the lower side of the busbar housing 101, and the sealing plate 103 is installed in the lower opening 102. Several copper busbars 109 are provided in the inner cavity of the busbar housing 101. One end of the copper busbar 109 is connected to the connector 104. A connection port is provided at one end of the busbar housing 101, and several connectors 104 are inserted into the connection port. The connectors 104 correspond one-to-one with the copper busbars 109, and the connectors 104 are fixedly connected to the corresponding copper busbars 109.

[0045] A plug-in box assembly 200 is provided at the top of the busbar housing 101, and a starting box assembly 300 is provided at the other end of the busbar housing 101.

[0046] The plug-in box assembly 200 includes a plug-in box 201, plug-in side plates 202, connecting posts 203, connecting seats 204, connecting holes 208, and wiring structures. Two spaced-apart plug-in side plates 202 are provided on the upper side of the busbar housing 101. The plug-in side plates 202 are plugged into the plug-in box 201. A connecting post 203 is provided at the bottom of the plug-in box 201. A connecting hole 208 is provided on the connecting post 203, and a connecting seat 204 is movably plugged into the connecting hole 208. A connecting hole 110 is provided in the middle of the copper busbar 109. The central axes of all connecting holes 110 are collinear to ensure accurate plugging of the connecting post 203 into the connecting hole 110. Several connecting seats 204 are equally spaced on the connecting post 203. The connecting seats 204 are connected to the wiring structures. The connecting post 203 is plugged into the connecting hole 110, and the wiring structures on the connecting seat 204 abut against the inner wall of the connecting hole 110.

[0047] Connecting seats 204 are installed on connecting posts 203 from top to bottom. There are two connecting seats 204 at each layer height of connecting posts 203. The two connecting seats 204 are arranged symmetrically. The number of connecting seats 204 is twice the number of copper busbars 109.

[0048] Several external locking sleeves 105 are fitted onto the busbar housing 101, and the plug-in side plate 202 extends into the plug-in box 201 and is fixedly connected to the plug-in box 201.

[0049] The wiring structure also includes a copper rod 206 and a graphite rod 207. The connecting seat 204 is provided with a copper rod 206 and a graphite rod 207. The copper rod 206 and the graphite rod 207 are spaced apart. Both ends of the copper rod 206 and both ends of the graphite rod 207 extend out of the connecting seat 204. The part of the graphite rod 207 and the copper rod 206 located in the inner cavity of the connecting post 203 is provided with a connecting wire. The copper rod 206 and the graphite rod 207 are connected to the inner wall of the connecting hole 110.

[0050] The arrangement of multiple copper rods, graphite rods and connecting wires optimizes the wiring structure and improves the fault tolerance rate. The plug-in box assembly and the busbar housing 101 can be quickly connected, which facilitates the splitting of power in the middle of the busbar. The connecting wires and wiring structure are connected to the circuit where the connecting wires are located by connecting to the inner wall of the connecting hole 110 on the copper busbar 109, thereby achieving the purpose of splitting power in the middle of the busbar.

[0051] The wiring structure also includes an elastic ring 205 and a movable sealing plate 209. The portion of the connecting seat 204 located in the inner cavity of the connecting post 203 is provided with a movable sealing plate 209, and an elastic ring 205 is connected between the movable sealing plate 209 and the inner wall of the inner cavity of the connecting post 203.

[0052] The elastic ring 205 is arranged around the movable sealing disk 209, and the elastic ring 205 and the movable sealing disk 209 cooperate to completely seal the opening inside the connecting hole 208.

[0053] The elastic ring 205 pulls the connecting seat 204 out of the connecting hole 208 and squeezes the inner wall of the connecting hole 110 on the copper busbar 109.

[0054] The starting box assembly 300 includes a starting box 301, an intermediate square tube 302, and docking structures. The intermediate square tube 302 is provided on one side of the starting box 301. One end of the busbar housing 101 is docked with the intermediate square tube 302. The busbar housing 101 is sleeved with one end of the outer locking sleeve 105. The intermediate square tube 302 is sleeved with the other end of the outer locking sleeve 105. The copper busbar 109 extends into the inner cavity of the intermediate square tube 302. Several docking structures are provided inside the intermediate square tube 302. The docking structures are inserted into the copper busbar 109 accordingly.

[0055] Spring 304 pulls the U-shaped elastic bracket 306 on copper plate 303, which is then connected to copper busbar 109.

[0056] The docking structure includes a U-shaped elastic frame 306, copper plates 303, copper protrusions 308, and springs 310. The inner cavity of the intermediate square tube 302 is provided with a U-shaped elastic frame 306. Several copper plates 303 are arranged in layers within the inner cavity of the intermediate square tube 302. A U-shaped elastic frame 306 is provided at one end of each copper plate 303. The U-shaped elastic frame 306 corresponds to and is inserted into the copper busbar 109. A copper protrusion 308 is provided on each of the two sides of the U-shaped elastic frame 306. 8. The outer side of the copper busbar 109 is connected to the corresponding copper protrusion 308. Each of the two sides of the U-shaped elastic frame 306 is provided with an abutment plate 309. The abutment plate 309 abuts against the copper busbar 109. The abutment plate 309 is inclined. A spring 310 is provided at one end of the U-shaped elastic frame 306 near the copper plate 303. The two ends of the spring 310 are connected to the two sides of the U-shaped elastic frame 306 respectively. The other end of the copper plate 303 extends into the inner side of the starting box 301.

[0057] The elasticity of the spring 310 pulls the two sides of the U-shaped elastic frame 306 closer together.

[0058] The inner cavity of the busbar housing 101 is provided with several isolation support mechanisms. The isolation support mechanisms are sleeved with the copper busbars 109. The isolation support mechanism includes a partition plate 106 and an insulating partition plate 107. An insulating partition plate 107 is provided at each end of the partition plate 106. There are several partition plates 106 arranged at intervals. The partition plates 106 are inserted between two adjacent copper busbars 109.

[0059] When the copper busbar 109 is inserted into the U-shaped elastic frame 306 and comes into contact with the abutment plate 309, it will squeeze the abutment plate 309 and cause it to swing, making the U-shaped elastic frame 306 clamp the copper busbar 109 more tightly.

[0060] The docking structure also includes an insulating sleeve 307, which wraps around the end of the U-shaped elastic frame 306 away from the copper plate 303. The material of the insulating sleeve 307 is EPDM rubber.

[0061] The insulating sleeve 307 can separate two adjacent U-shaped elastic frames 306 to prevent direct contact between the U-shaped elastic frames 306.

[0062] The starting box assembly 300 also includes a spring 304 and a limiting ring 305. The copper plate 303 is provided with a limiting ring 305. The outer side of the copper plate 303 is sleeved with a spring 304. One end of the spring 304 is connected to the limiting ring 305. The other end of the spring 304 is fixedly connected to the connecting platform 311. The connecting platform 311 is set inside the middle square tube 302. The copper plate 303 is inserted into the connecting platform 311.

[0063] The elastic force of the U-shaped elastic frame 306 clamps the copper busbar 109 through the copper protrusion 308, ensuring the stability of the electrical connection between the copper plate 303 and the copper busbar 109.

[0064] Several elastic isolation sleeves 108 are provided inside the connection port of the busbar housing 101, and the circumferential surface of the elastic isolation sleeves 108 is connected to the inner wall of the connection port.

[0065] The elastic isolation sleeve 108 is made of rubber. The elastic isolation sleeve 108 isolates the connector 104 from the busbar housing 101. Insulating sleeves 307 are provided on both sides of the U-shaped elastic frame 306.

[0066] The copper rod 206 and the graphite rod 207 are electrically connected to the inner wall of the connecting hole 110 by extrusion.

[0067] The specific implementation method is as follows: Busbar housing assembly: After arranging the copper busbar 109, partition plate 106, insulating partition plate 107 and elastic isolation sleeve 108 inside the busbar housing 101, the sealing plate 103 is placed on the lower opening 102, and the sealing plate 103 is fixed to the busbar housing 101 by bolts to ensure that the inner cavity of the lower opening 102 is completely sealed to prevent dust or foreign objects from entering and improve insulation and safety;

[0068] Starting box docking: Insert one end of the outer locking sleeve 105 into the busbar housing 101 and the other end into the intermediate square tube 302. Securely connect the outer locking sleeve 105 with the busbar housing 101 and the intermediate square tube 302 with fixing bolts to achieve stable docking between the intermediate square tube 302 and the busbar housing 101.

[0069] The U-shaped flexible frame 306 is formed by symmetrically bending a metal sheet and has two opposite sides.

[0070] One end of the copper busbar 109 is provided with a pointed tip. When the pointed tip of the copper busbar 109 is inserted into the U-shaped elastic frame 306, the inclined surface of the pointed tip will press against the two sides of the U-shaped elastic frame 306 and separate them. The elastic force of the U-shaped elastic frame 306 clamps the copper busbar 109 through the copper protrusion 308, ensuring the stability of the electrical connection between the copper plate 303 and the copper busbar 109.

[0071] The insulating sleeve 307 wraps around the end of the U-shaped elastic frame 306 to prevent adjacent U-shaped elastic frames 306 from directly contacting each other, further reducing the risk of short circuit;

[0072] Plug box installation: Install plug box 201 on top of busbar housing 101, so that connecting post 203 is inserted into busbar housing 101. The connecting post 203 is precisely aligned and inserted into the connecting hole 110 of copper busbar 109. A switch is provided inside plug box 201. Connecting wires are connected to the switch. The switch is connected to the socket and USB interface.

[0073] The assembled busbar trunking will be fixed to the rack power distribution unit, enabling it to undertake part of the power transmission function.

[0074] Through the squeezing action of the elastic ring 205 and the movable closed disc 209, the copper rod 206 and graphite rod 207 on the connector 204 are tightly connected to the inner wall of the connector hole 110, optimizing the wiring structure, reducing contact resistance, and ensuring efficient electrical transmission.

[0075] Operational safeguards: During operation, the spring 310 elastically pulls the two sides of the U-shaped elastic frame 306 together to enhance the clamping force;

[0076] When the copper busbar 109 is inserted into the U-shaped elastic frame 306, it presses against the abutment plate 309, causing the abutment plate 309 to sway slightly, further strengthening the clamping effect of the U-shaped elastic frame 306 on the copper busbar 109 and ensuring the connection stability during long-term operation.

[0077] Spring 304 and limiting ring 305 work together to maintain a stable connection between copper plate 303 and copper busbar 109, adapting to vibration or thermal expansion and contraction environments.

[0078] It should be understood that numerous specific implementation decisions can be made during the development of any practical implementation, such as in any engineering or design project. Such development efforts may be complex and time-consuming, but for those skilled in the art who benefit from this disclosure, the development effort will be a routine work of design, manufacturing, and production without requiring much experimentation.

[0079] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention and are not intended to limit it. Although the present invention has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solutions of the present invention without departing from the spirit and scope of the technical solutions of the present invention, and all such modifications or substitutions should be covered within the scope of the claims of the present invention.

Claims

1. A low-current busbar trunking suitable for data center rack power distribution, characterized in that: The system includes a busbar main assembly (100), which comprises a busbar housing (101), a lower opening (102), a sealing plate (103), connectors (104), and copper busbars (109). The lower opening (102) is provided on the lower side of the busbar housing (101), and the sealing plate (103) is installed inside the lower opening (102). Several copper busbars (109) are provided inside the inner cavity of the busbar housing (101). A connection port is provided at one end of the busbar housing (101), and several connectors (104) are inserted into the connection port. One end of each copper busbar (109) is connected to a connector (104), and each connector (104) corresponds to a copper busbar (109). The busbar (109) is fixedly connected. A plug-in box assembly (200) is provided at the top of the busbar housing (101), and a starting box assembly (300) is provided at the other end of the busbar housing (101). The starting box assembly (300) includes a starting box (301), an intermediate square tube (302), and a docking structure. An intermediate square tube (302) is provided on one side of the starting box (301). The busbar housing (101) is sleeved with one end of the outer locking sleeve (105), and the intermediate square tube (302) is sleeved with the other end of the outer locking sleeve (105). The copper busbar (109) extends into the inner cavity of the intermediate square tube (302). Several docking structures are provided inside the intermediate square tube (302). The docking structures include a U-shaped elastic frame (306) and a copper busbar (109). The plate (303) and the spring (310) are arranged in layers. A U-shaped elastic frame (306) is provided in the inner cavity of the middle square tube (302). Several copper plates (303) are arranged in layers in the inner cavity of the middle square tube (302). One end of the copper plate (303) is connected to the U-shaped elastic frame (306). The U-shaped elastic frame (306) corresponds to and is inserted into the copper busbar (109). Each of the two sides of the U-shaped elastic frame (306) is provided with an abutment plate (309). The abutment plate (309) abuts against the copper busbar (109). The abutment plate (309) is inclined. The plug-in box assembly (200) includes a plug-in box (201), a plug-in side plate (202), a connecting post (203), a connecting seat (204), and a connecting hole (208). The busbar housing (101) has two spaced-apart plug-in side plates (202) on its upper side. The plug-in side plates (202) are plugged into the plug box (201). The bottom of the plug box (201) has a connecting post (203). The connecting post (203) has a connecting hole (208). The connecting hole (208) is movably plugged into the connecting seat (204). The copper busbar (109) has a connecting hole (110) in the middle. The connecting post (203) has several connecting seats (204) at equal intervals. The connecting seat (204) is connected to the wiring structure. The connecting post (203) is plugged into the connecting hole (110). The wiring structure on the connecting seat (204) abuts against the inner wall of the connecting hole (110).

2. A low-current busbar trunking system suitable for data center rack power distribution according to claim 1, characterized in that: The wiring structure includes a copper rod (206) and a graphite rod (207). The copper rod (206) and the graphite rod (207) are provided on the connector (204). The copper rod (206) and the graphite rod (207) are spaced apart. Both ends of the copper rod (206) and both ends of the graphite rod (207) extend out of the connector (204). The part of the graphite rod (207) and the copper rod (206) located in the inner cavity of the connector (203) is provided with a connecting wire. The copper rod (206) and the graphite rod (207) are connected to the inner wall of the connecting hole (110).

3. A low-current busbar trunking system suitable for data center rack power distribution according to claim 2, characterized in that: The wiring structure also includes an elastic ring (205) and a movable sealing plate (209). The portion of the connecting seat (204) located in the inner cavity of the connecting post (203) is provided with a movable sealing plate (209). An elastic ring (205) is connected between the movable sealing plate (209) and the inner wall of the inner cavity of the connecting post (203).

4. A low-current busbar trunking system suitable for data center rack power distribution according to claim 1, characterized in that: The docking structure also includes copper protrusions (308), and each of the two sides of the U-shaped elastic frame (306) is provided with a copper protrusion (308). The outer side of the copper busbar (109) is connected to the corresponding copper protrusion (308). A spring (310) is provided at one end of the U-shaped elastic frame (306) near the copper plate (303). The two ends of the spring (310) are connected to the two sides of the U-shaped elastic frame (306). The other end of the copper plate (303) extends into the inner side of the starting box (301).

5. A low-current busbar trunking system suitable for data center rack power distribution according to claim 1, characterized in that: The inner cavity of the busbar housing (101) is provided with several isolation support mechanisms, which are sleeved with the copper busbars (109). The isolation support mechanism includes a partition plate (106) and an insulating partition plate (107). An insulating partition plate (107) is provided at each end of the partition plate (106). There are several partition plates (106) arranged at intervals, and the partition plates (106) are inserted between two adjacent copper busbars (109).

6. A low-current busbar trunking system suitable for data center rack power distribution according to claim 4, characterized in that: The docking structure also includes an insulating sleeve (307), which wraps around the end of the U-shaped elastic frame (306) away from the copper plate (303).

7. A low-current busbar trunking system for data center rack power distribution according to claim 1, characterized in that: The starting box assembly (300) also includes a spring (304) and a limiting ring (305). A limiting ring (305) is provided on the copper plate (303). A spring (304) is sleeved on the outside of the copper plate (303). One end of the spring (304) is connected to the limiting ring (305), and the other end of the spring (304) is fixedly connected to the connecting platform (311).

8. A low-current busbar trunking system for data center rack power distribution according to claim 1, characterized in that: The connection port of the busbar housing (101) is provided with several elastic isolation sleeves (108), and the circumferential surface of the elastic isolation sleeves (108) is connected to the inner wall of the connection port.

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