A composite busbar

Abstract

The present invention discloses a composite busbar that integrates a low-voltage DC power busbar and a communication busbar on the basis of a traditional power busbar duct. The composite busbar comprises an aluminum alloy busbar duct body and a detachable integrated high-voltage insulation bracket, a ground wire insulation bracket, a low-voltage power busbar insulation bracket, a communication busbar insulation bracket, and multiple high-voltage copper busbars with C-shaped insulation caps, a ground wire copper busbar, a communication busbar small copper busbar, and a low-voltage power busbar small copper busbar. This composite busbar integrates the traditional power busbar, the low-voltage power busbar, and the communication busbar. It uses side-end sliding assembly for flexible and convenient assembly, achieving a low-cost, easy-to-operate integrated, modular design.

Description

Technical Field

[0001] The present invention relates to an electrical connector, in particular to a composite busbar. Background Art

[0002] The terminal busbar is a power distribution device for power terminals, usually composed of copper conductors and aluminum alloy casings. It is used to supply power to specific equipment through matching devices such as plug-in boxes. Especially for network cabinet power supply in data centers, the terminal busbar power supply method has increasingly replaced the traditional terminal cabinet cable power supply method. This power supply method can provide a larger power output capacity and has strong expansion capabilities. At the same time, after replacing the terminal cabinet, it also saves valuable space resources, allowing users to deploy more network cabinets. The characteristics of the terminal busbar are series matching, commercial production, large capacity, short design and construction cycle, easy assembly and disassembly, no combustion, safe and reliable, and long service life. The terminal busbar product is suitable for three-phase four-wire and three-phase five-wire data center network cabinet power supply projects with AC 50Hz, rated voltage 380V, and rated current usually 250A-1000A. The main design feature of the terminal busbar is plug and play, that is, using the plug-in box that matches the busbar to achieve fast and convenient output. The design of the terminal busbar allows the plug-in box to be plugged into any position of the busbar according to actual needs to complete power output. At the same time, the plug-in box also has functions such as power monitoring, which can monitor power usage in real time.

[0003] For intelligent devices like plug-in boxes, power supply and network connectivity are crucial considerations. Power is typically provided through two methods: busbar power or external power. Since the plug-in box is already connected to the busbar, busbar power is easily implemented. However, this approach presents a problem: the plug-in box's circuitry can affect busbar testing and maintenance. For busbar voltage testing, all plug-in boxes must be removed. Another option is external power supply, typically using a low-voltage DC power supply (such as 24V DC) to the plug-in box via a cable. Plug-in boxes typically utilize RS485 network connections, typically using shielded twisted-pair cables for cascading.

[0004] Therefore, the devices in the terminal busbar's plug-in box are typically connected via a communication cable, and some systems also have a DC 24V power cable. Disadvantages of using cables include: heavy on-site wiring workload; multiple cascade failure points; adding equipment requires cable changes, impacting communication with existing equipment; and unsightly aesthetics. Summary of the Invention

[0005] In order to overcome the deficiencies of the prior art, an object of the present invention is to provide a composite busbar that can solve the above-mentioned problems.

[0006] Design principle: A composite busbar is designed, which integrates the power supply busbar, low-voltage DC power supply busbar and communication busbar. Through the integration of the three busbars, the disadvantages of the existing terminal busbar system are completely avoided, making the intelligent devices such as the busbar-matched plug-in boxes truly plug-and-play, without the need for external cables.

[0007] Technical solution: The purpose of the present invention is achieved by adopting the following technical solution.

[0008] A composite busbar comprises a composite busbar trough and an integrated high-voltage insulating support, a ground insulating support, a plurality of high-voltage copper busbars with C-shaped insulating caps, a ground copper busbar, a communication busbar and a low-voltage power supply busbar that are detachably connected to the composite busbar trough. The composite busbar trough comprises a high-voltage insulating support trough, a ground insulating support trough, a communication busbar trough and a low-voltage DC power supply busbar trough opened on a side. The ground insulating support trough is arranged adjacent to the high-voltage insulating support trough, and the communication busbar trough and the low-voltage DC power supply busbar trough are arranged at both ends of the side of the composite busbar trough; the integrated high-voltage insulating support is arranged in the high-voltage insulating support trough, the ground insulating support is arranged in the ground insulating support trough, the communication busbar is arranged in the communication busbar trough, and the low-voltage power supply busbar is arranged in the low-voltage DC power supply busbar trough.

[0009] Preferably, three T-shaped stop plates are provided on the inner side surface of the high-voltage insulating support groove of the composite busbar duct, which protrude outwards, and a plurality of positioning plates are formed by extending the top and bottom surfaces of the high-voltage insulating support groove in parallel to the groove inner direction, and a plurality of positioning plates are also formed by extending the top and bottom surfaces of the ground wire insulating support groove in parallel to the groove inner direction, and a return clip plate is formed on the outer edge of the C-shaped communication busbar duct and the low-voltage DC power supply busbar duct, and a return card groove is formed between the return clip plate and the two adjacent groove walls.

[0010] Preferably, C-shaped hanging grooves are provided at the top and bottom ends of the composite bus duct respectively for installation and fixation with external devices.

[0011] Preferably, heat sinks are evenly distributed on the other side of the composite bus duct.

[0012] Preferably, a plurality of slot cavities are provided on the main body of the composite bus duct, which achieves the effects of heat dissipation, material reduction and lightweight design.

[0013] Preferably, the integrated high-voltage insulating bracket includes four integrally formed busbar slots that are spaced apart and arranged in parallel, three bracket stop grooves, and bracket positioning ribs that are arranged at the top and bottom ends of the integrated high-voltage insulating bracket and protrude outward, and the bracket positioning ribs are adapted to slide against the positioning plates; the busbar slots are open to the outside, and busbar positioning ribs are arranged in the busbar slots; the bracket stop grooves are arranged on the inner side of the integrated high-voltage insulating bracket at intervals from the busbar slots, and two limiting ribs are arranged opposite to each other on the top and bottom surfaces of the bracket stop grooves, and the limiting ribs are adapted to abut against the T-shaped stop plate.

[0014] Preferably, a plurality of bracket outer baffles are provided on the outer side of the integrated high-voltage insulating bracket and spaced apart from the opening of the busbar slot.

[0015] The outer baffles of the bracket include three T-shaped outer baffles arranged in the middle and flat baffles arranged at both ends.

[0016] Preferably, a plurality of bracket cavities are opened on the body of the integrated high-voltage insulating bracket.

[0017] Preferably, the ground wire insulation bracket includes a ground wire copper bar clamping groove formed by a ∏-shaped bracket, a ground wire copper bar positioning rib formed by an upward protrusion on the inner wall of the ground wire copper bar clamping groove, and the top and bottom ends of the ground wire insulation bracket extend vertically outward to form a ground wire insulation bracket positioning rib plate.

[0018] Preferably, a first arc-shaped positioning inner groove adapted to the busbar positioning ribs is provided on the bottom surface of the high-voltage copper busbar, a second arc-shaped positioning inner groove adapted to the ground wire copper busbar positioning ribs is provided on the bottom surface of the grounding copper busbar, and a C-shaped flange adapted to the C-shaped insulating cap is provided on the outer end edge of the high-voltage copper busbar.

[0019] Preferably, the communication bus and the low-voltage power supply bus both include a C-shaped insulating trough body, and inner end buckles and outer end return buckles are provided at both ends of the top wall and the bottom wall of the C-shaped insulating trough body, and a top plate is vertically provided on the inner wall surface of the top wall and the bottom wall. The top wall or bottom wall of the C-shaped insulating trough body and the inner end buckle, the outer end return buckle and the top plate form an installation groove for the low-voltage copper busbar.

[0020] Compared with the existing technology, the beneficial effect of the present invention is that the composite busbar of the present application integrates the low-voltage power supply busbar, the communication busbar and the traditional power supply busbar into a composite integrated design, which can achieve the goal of connecting smart devices to the low-voltage power supply busbar and the communication busbar while plugging them into the traditional power supply busbar, without the need for traditional wiring work, and achieving perfect plug-and-play. BRIEF DESCRIPTION OF THE DRAWINGS

[0021] Figure 1 This is a schematic structural diagram of an embodiment of a composite busbar according to the present invention;

[0022] Figure 2 It is the front view of the assembly of the composite busbar;

[0023] Figure 3 It is the decomposition diagram of the composite busbar;

[0024] Figure 4 It is the exploded schematic diagram of the composite busbar in the front view direction;

[0025] Figure 5 It is a structural diagram of the composite bus duct;

[0026] Figure 6 It is a structural diagram of an integrated high-voltage insulation bracket;

[0027] Figure 7 It is a structural diagram of the ground wire insulation bracket;

[0028] Figure 8 This is a structural diagram of the communication bus.

[0029] In the figure: 100, composite bus duct; 101, high-voltage insulation bracket duct; 102, ground wire insulation bracket duct; 103, communication bus duct; 104, low-voltage DC power supply bus duct; 105, C-shaped lifting duct; 106, heat sink; 107, T-shaped stop plate; 108, positioning plate; 109, return buckle plate; 110, return card slot; 111, trough cavity;

[0030] 200, integrated high-voltage insulation bracket; 201, busbar slot; 202, bracket stop groove; 203, bracket positioning rib; 204, busbar positioning rib; 205, bracket outer baffle; 206, limiting rib; 207, bracket cavity;

[0031] 300, ground wire insulation bracket; 301, ground wire copper bar clamping groove; 302, ground wire insulation bracket positioning rib; 303, ground wire copper bar positioning rib;

[0032] 400, C-shaped insulating cap;

[0033] 500, high-voltage copper busbar; 501, first arc-shaped positioning inner groove; 502, C-shaped flange;

[0034] 600, grounding copper busbar; 601, second arc-shaped positioning inner groove;

[0035] 700, communication busbar; 701, C-shaped insulation trough; 702, inner end buckle; 703, outer end return buckle; 704, top plate; 705, low-voltage copper busbar;

[0036] 800. Low-voltage power supply bus. DETAILED DESCRIPTION

[0037] To make the objectives, technical solutions, and advantages of the embodiments of the present invention more clear, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts shall fall within the scope of protection of the present invention.

[0038] See also Figures 1 to 8 A composite busbar includes a composite busbar duct 100 and an integrated high-voltage insulating bracket 200, a ground wire insulating bracket 300, a plurality of high-voltage copper busbars 500 with C-shaped insulating caps 400, a grounding copper busbar 600, a communication busbar 700 and a low-voltage power supply busbar 800 that are detachably connected to the composite busbar duct 100.

[0039] Composite bus duct

[0040] The composite bus duct 100 includes a high-voltage insulation support groove 101, a ground wire insulation support groove 102, a communication bus duct 103, and a low-voltage DC power supply bus duct 104 opened on the side. The ground wire insulation support groove 102 is arranged adjacent to the high-voltage insulation support groove 101, and the communication bus duct 103 and the low-voltage DC power supply bus duct 104 are arranged at the two ends of the side of the composite bus duct 100; the integrated high-voltage insulation support 200 is arranged in the high-voltage insulation support groove 101, the ground wire insulation support 300 is arranged in the ground wire insulation support groove 102, the communication bus 700 is arranged in the communication bus duct 103, and the low-voltage power supply bus 800 is arranged in the low-voltage DC power supply bus duct 104.

[0041] Three T-shaped stop plates 107 are provided on the inner side surface of the high-voltage insulating support groove 101 of the composite busbar 100, which protrudes outward. A plurality of positioning plates 108 are formed by extending parallel to the inner direction of the groove on the top and bottom surfaces of the high-voltage insulating support groove 101. A plurality of positioning plates 108 are also formed by extending parallel to the inner direction of the groove on the top and bottom surfaces of the ground wire insulating support groove 102. A return clip plate 109 is formed on the outer edge of the C-shaped communication busbar 103 and the low-voltage DC power supply busbar 104, and a return card groove 110 is formed between the return clip plate 109 and the two adjacent groove walls.

[0042] Furthermore, in order to facilitate fixed connection with external devices such as chassis or control cabinets, C-shaped hanging slots 105 are respectively provided at the top and bottom ends of the composite bus duct 100. Alternatively, mounting lugs or mounting plates with long waist-shaped holes can be provided.

[0043] For further information, see Figure 5 In order to dissipate heat, heat sinks 106 are evenly distributed on the other side of the composite bus duct 100 .

[0044] In consideration of heat dissipation, reduced material consumption and lightweight design, a plurality of slot cavities 111 are provided on the main body of the composite bus duct 100 .

[0045] Integrated high-voltage insulation bracket

[0046] The integrated high-voltage insulating bracket 200 includes four integrally formed busbar slots 201 that are spaced apart and arranged in parallel, three bracket stop grooves 202, and bracket positioning ribs 203 that are arranged at the top and bottom ends of the integrated high-voltage insulating bracket 200 and protrude outward, and the bracket positioning ribs 203 are adapted to slide and abut against the positioning plate 108; the busbar slot 201 is open to the outside, and a busbar positioning rib 204 is arranged in the busbar slot 201; the bracket stop groove 202 is arranged on the inner side of the integrated high-voltage insulating bracket 200 at intervals from the busbar slot 201, and two limiting ribs 206 are arranged opposite to each other on the top and bottom surfaces of the bracket stop groove 202, and the limiting ribs 206 are adapted to abut against the T-shaped stop plate 107.

[0047] Furthermore, a plurality of bracket outer baffles 205 are provided on the outside of the integrated high-voltage insulating bracket 200 and spaced apart from the opening of the busbar slot 201. The bracket outer baffles 205 include three T-shaped outer baffles provided in the middle and flat baffles provided at both ends.

[0048] Similarly, considering the purpose of heat dissipation, reducing consumables and lightweight design, a plurality of bracket cavities 207 are opened on the body of the integrated high-voltage insulation bracket 200.

[0049] Ground wire insulation bracket

[0050] The ground wire insulation bracket 300 includes a ground wire copper bar clamping groove 301 composed of a Π-shaped bracket, a ground wire copper bar positioning rib 303 formed by protruding upward on the inner wall of the ground wire copper bar clamping groove 301, and the top and bottom ends of the ground wire insulation bracket 300 extend vertically outward to form a ground wire insulation bracket positioning rib plate 302.

[0051] High-voltage copper busbar

[0052] The high-voltage copper busbar 500 generally includes four, A-phase copper busbar, B-phase copper busbar, C-phase copper busbar and N-phase copper busbar. The maximum load of this application is 1000A. A first arc-shaped positioning inner groove 501 is provided on the bottom surface of the high-voltage copper busbar 500 to match the busbar positioning rib 204, and a C-shaped flange 502 is provided on the outer end of the high-voltage copper busbar 500 to match the C-shaped insulating cap 400.

[0053] Grounding copper busbar

[0054] The length of the grounding copper busbar 600 is the same as that of the high-voltage copper busbar 500, but the width is shorter and no C-shaped flange is provided. Instead, only a second arc-shaped positioning inner groove 601 is provided on the bottom surface of the grounding copper busbar 600 to match the ground copper busbar positioning rib 303.

[0055] Low-voltage busbar

[0056] The low-voltage busbars include a communication busbar 700 and a low-voltage power supply busbar 800, which have the same structure. Specifically, each includes a C-shaped insulating trough 701, with inner end buckles 702 and outer end return buckles 703 disposed at both ends of the top and bottom walls of the C-shaped insulating trough 701. A top plate 704 is vertically disposed on the inner wall surfaces of the top and bottom walls. The top or bottom wall of the C-shaped insulating trough 701, the inner end buckle 702, the outer end return buckle 703, and the top plate 704 form a mounting slot for a low-voltage copper busbar 705.

[0057] Two low-voltage copper busbars 705 provide low-voltage DC power (usually DC24V) for low-voltage electrical equipment. Smart devices such as plug-in boxes are designed with corresponding pins. When the device is installed on the power bus, the pins are inserted at the same time, and the device can obtain power supply. This power supply is independent and has nothing to do with the power bus, and will not affect the operation and testing of the power bus.

[0058] Two low-voltage copper busbars 705 provide a two-wire cascade connection function for the communication bus 700. Intelligent devices such as plug-in boxes are designed with corresponding pins. When the device is installed on the power supply bus, the pins are inserted at the same time, and the communication port of the device (usually the A / B line of RS485 communication) can be connected, realizing the cascade connection of the communication lines of all devices.

[0059] Alternative solution: cancel the integrated high-voltage insulating support 200, and instead set a plurality of partitions on the inner side surface of the high-voltage insulating support slot 101 to protrude outward, and set a plurality of supporting springs between the partitions for the spaced installation of the high-voltage copper busbar 500.

[0060] In summary, this composite busbar realizes the integration of traditional power supply busbar, low-voltage power supply busbar and communication busbar. It has a simple structure, adopts side sliding connection, does not require additional parts to fix, and is flexible and convenient to assemble, realizing a low-cost and easy-to-operate composite design.

[0061] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the aforementioned embodiments, or make equivalent replacements for some of the technical features therein. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the various embodiments of the present invention.

Claims

1. A composite busbar, characterized by: The composite busbar comprises a composite busbar duct (100) and an integrated high-voltage insulation bracket (200) detachably connected to the composite busbar duct (100), a ground wire insulation bracket (300), a plurality of high-voltage copper bars (500) with C-shaped insulation caps (400), a ground wire insulation bracket (600), a communication busbar (700) and a low-voltage power supply busbar (800). The composite busbar duct (100) comprises a high-voltage insulation bracket duct (101) opened on a side, a ground wire insulation bracket duct (102), a communication busbar duct (103), and a low-voltage DC power supply busbar duct (104). The ground wire insulation bracket The frame slot (102) is arranged adjacent to the high-voltage insulation support slot (101), and the communication busbar slot (103) and the low-voltage DC power supply busbar slot (104) are arranged at two ends of the side of the composite busbar slot (100); the integrated high-voltage insulation support (200) is arranged in the high-voltage insulation support slot (101), the ground wire insulation support (300) is arranged in the ground wire insulation support slot (102), the communication busbar (700) is arranged in the communication busbar slot (103), and the low-voltage power supply busbar (800) is arranged in the low-voltage DC power supply busbar slot (104); C-shaped hanging grooves (105) are respectively provided at the top and bottom ends of the composite bus duct (100) for installation and fixation with external devices; Three T-shaped stop plates (107) are provided on the inner side surface of the high-voltage insulation support groove (101) of the composite busbar duct (100) and protrude outward. A plurality of positioning plates (108) are formed on the top and bottom surfaces of the high-voltage insulation support groove (101) and extend in parallel in the groove inward. A plurality of positioning plates (108) are also formed on the top and bottom surfaces of the ground wire insulation support groove (102) and extend in parallel in the groove inward. A return buckle plate (109) is formed on the outer edge of the C-shaped communication busbar duct (103) and the low-voltage DC power supply busbar duct (104) and extends inward in the groove. A return clamping groove (110) is formed between the return buckle plate (109) and two adjacent groove walls.

2. The composite busbar according to claim 1, characterized in that: Heat dissipation fins (106) are evenly distributed on the other side of the composite bus duct (100), and a plurality of trough cavities (111) are opened on the main body of the composite bus duct (100).

3. The composite busbar according to claim 1, characterized in that: The integrated high-voltage insulating support (200) comprises four integrally formed busbar slots (201) arranged in parallel at intervals, three support stop grooves (202), and support positioning ribs (203) arranged at the top and bottom ends of the integrated high-voltage insulating support (200) and protruding outward, wherein the support positioning ribs (203) are adapted to slide against the positioning plate (108); the busbar slot (201) is open to the outside, and a busbar positioning rib (204) is arranged in the busbar slot (201); the support stop groove (202) is arranged on the inner side of the integrated high-voltage insulating support (200) at intervals from the busbar slot (201), and two limiting ribs (206) are arranged on the top and bottom surfaces of the support stop groove (202) opposite to each other, and the limiting ribs (206) are adapted to abut against the T-shaped stop plate (107).

4. The composite busbar according to claim 3, characterized in that: A plurality of bracket outer baffles (205) are provided on the outer side of the integrated high-voltage insulating bracket (200) and spaced apart from the opening of the busbar slot (201).

5. The composite busbar according to claim 3 or 4, characterized in that: A plurality of bracket cavities (207) are provided on the body of the integrated high-voltage insulating bracket (200).

6. The composite busbar according to claim 3, characterized in that: The ground wire insulation bracket (300) comprises a ground wire copper bar clamping groove (301) formed by a ∏-shaped bracket, a ground wire copper bar positioning rib (303) formed by upwardly protruding inner walls of the ground wire copper bar clamping groove (301), and a ground wire insulation bracket positioning rib plate (302) formed by vertically extending the top and bottom ends of the ground wire insulation bracket (300) outward.

7. The composite busbar according to claim 6, characterized in that: A first arc-shaped positioning inner groove (501) adapted to the busbar positioning rib (204) is provided on the bottom surface of the high-voltage copper busbar (500), a second arc-shaped positioning inner groove (601) adapted to the ground copper busbar positioning rib (303) is provided on the bottom surface of the grounding copper busbar (600), and a C-shaped flange (502) adapted to the C-shaped insulating cap (400) is provided on the outer end edge of the high-voltage copper busbar (500).

8. The composite busbar according to claim 1, characterized in that: The communication busbar (700) and the low-voltage power supply busbar (800) both include a C-shaped insulating trough body (701), and inner end buckles (702) and outer end return buckles (703) are provided at both ends of the top wall and the bottom wall of the C-shaped insulating trough body (701), and a top plate (704) is vertically provided on the inner wall surfaces of the top wall and the bottom wall. The top wall or the bottom wall of the C-shaped insulating trough body (701) and the inner end buckle (702), the outer end return buckle (703) and the top plate (704) form a mounting groove for a low-voltage copper busbar (705).

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