A terminal busbar flexible connector

Abstract

The present invention discloses a terminal busbar busbar flexible connector, the flexible connector comprises N flexible connection components, N+1 insulating pads, two sheet metal sheathing plates, a shell and a plurality of assembly bolt components, the flexible connection components, the insulating pads and the sheet metal sheathing plates are installed in the shell through the assembly bolt components, the N flexible connection components are arranged in an interlaced manner between the N+1 insulating pads arranged in an interlaced manner, the sheet metal sheathing plates are arranged between the outer surface of the outermost insulating pads and the inner surface of the shell, the rear end of the shell is fully open, and a copper row opening is provided on one side end face of the shell near the front end face; the flexible connection component is T-shaped, comprising two cable connection ends and a copper row flexible connection end, and the N copper row flexible connection ends arranged in an interlaced manner extend out of the shell from the copper row opening. Through this flexible connector, the column winding function is realized, and at the same time, the specially designed cable and busbar transfer method ensures the reliability of the soft and hard connection and meets the requirement of small vertical space occupation.

Description

Technical Field

[0001] The invention relates to an electrical connector, in particular to a terminal busbar and busbar flexible connector. Background Art

[0002] The terminal busbar is usually a power distribution device for power terminals composed of copper conductors and aluminum alloy shells. It can supply power to specific equipment through matching plug-in boxes and other devices. Especially for network cabinets in data centers, the terminal busbar power supply method has increasingly replaced the traditional 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, it also saves valuable space resources after replacing the cabinet, allowing users to deploy more network cabinets. Therefore, it has become a trend to adopt the terminal busbar power supply method in data center construction.

[0003] The terminal busbar is characterized by series matching, commercial production, large capacity, short design and construction period, convenient assembly and disassembly, no burning, safe and reliable, and long service life. The terminal busbar products are 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-400A.

[0004] With the development of information technology, the application of terminal busbars has become more and more extensive. However, although the thickness of the busbar is only 5mm, the length of the busbar is limited. The busbar needs to be connected in sections at a time. Different manufacturers use different structures for the connection points of the busbar copper bar, but they usually occupy a large space, which increases the local size of the busbar (mainly the thickness). In this way, the previous efforts to reduce the installation height of the busbar will be wasted due to the increase in the size of the connection point. In addition, the installation of the busbar usually encounters building columns. The usual practice is to use corner busbars to achieve column winding. It usually takes 4 right-angle busbars and three sections of customized short busbars to bypass 1 column. The disadvantages of this method include: on-site mapping and product customization are required; there are too many contacts, and the number of fault points increases (up to 8). Therefore, how to design a reliable column winding connector that meets ultra-thin installation height, is easy to install, does not require customization, and supports high current has become the key to improving busbar safety standards and rapid installation. 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 terminal busbar flexible connector, which can solve the above-mentioned problems and meet the requirements of winding connection.

[0006] The purpose of the present invention is achieved by the following technical solutions:

[0007] A terminal busbar flexible connector, the flexible connector comprising N flexible connection components (N is a positive integer), N+1 insulating pads, two sheet metal sheathing plates, a shell and a plurality of assembly bolt components, the flexible connection components, the insulating pads and the sheet metal sheathing plates are installed in the shell through the assembly bolt components, the N flexible connection components are arranged in an alternating manner between the N+1 insulating pads arranged in an alternating manner, the sheet metal sheathing plates are arranged between the outer surface of the outermost insulating pad and the inner surface of the shell, the rear end of the shell is fully open, and a copper busbar opening is provided on one side end face of the shell near the front end face; the flexible connection component is T-shaped, comprising two cable connection ends and a copper busbar flexible connection end, and the N copper busbar flexible connection ends arranged in an alternating manner extend out of the shell from the copper busbar opening.

[0008] Preferably, the soft connection assembly includes two flexible connection plates butted against each other in the upper and lower parts, a cable lock, a reinforcement plate, a pressure block, a set screw, and a copper busbar sleeve. The same side of the two vertical ends of the T-shaped flexible connection plate extends outwardly to form a stop inclined plate, and the upper and lower stop inclined plates are arranged back to back to form a V-shaped inner stop end of the cable; the cable lock includes an integrally formed П-shaped cavity plate, an inclined buckle plate and a flat buckle end plate, and the inclined buckle plate matches the stop inclined plate and is contained in the inner end of the accommodating cavity of the cable lock, and the flat buckle end plate and the flexible connection plate are fastened and connected by bolts or rivets; the reinforcement plate, the pressure block The reinforcing plate with a fixing screw hole is arranged inside the cable lock and is arranged on the inner end surface of the П-shaped cavity plate. The pressure block with an arc-shaped or V-shaped inner side surface is arranged between the reinforcing plate and the V-shaped inner stop end, and the inner side surface of the pressure block is arranged toward the V-shaped inner stop end. The fixing screw passes through the outer end surface of the П-shaped cavity plate and the fixing screw hole of the reinforcing plate and then abuts against the outer side surface of the pressure block, thereby forming the cable connection end of the soft connection assembly; the copper busbar sleeve is inserted into the other end of the two T-shaped flexible connection plates butted up and down to form the copper busbar soft connection end of the soft connection assembly.

[0009] Preferably, the copper busbar soft connection end of the soft connection assembly connects the copper busbar to the flexible connection board via a copper busbar connector.

[0010] Preferably, the flexible connection plate of the soft connection assembly is integrally formed with the copper busbar, thereby eliminating the copper busbar connector.

[0011] Preferably, N of the flexible connection components are connected to N copper bars and N cables in sequence from top to bottom, the end of the copper bar is connected to the copper bar flexible connection end of the flexible connection component through a copper bar connector, and one end of the cable is locked at the flexible connection component (cable connection end).

[0012] Preferably, a flexible cable sleeve is provided to enclose all cables.

[0013] Preferably, the number of the flexible connection components is five, and the number of the insulating pads is six. The five flexible connection components sequentially connect the A-phase copper busbar and the A-phase cable, the B-phase copper busbar and the B-phase cable, the C-phase copper busbar and the C-phase cable, the neutral wire copper busbar and the neutral wire cable, and the ground wire copper busbar and the ground wire cable from top to bottom. The A-phase cable, the B-phase cable, the C-phase cable, and the neutral wire cable adopt a double-cable design, and the ground wire cable adopts a double-cable or single-cable design.

[0014] Preferably, the insulating pad is provided with a groove and an assembly through hole adapted to the shape of the flexible connection assembly, a flexible connection cavity is formed between two adjacent insulating pads through the groove, and the flexible connection assembly is pressed and positioned by the two adjacent insulating pads.

[0015] Preferably, the shell includes a W-shaped shell plate, a W-shaped cover plate and an outer end plate, the middle of the bottom of the W-shaped shell plate protrudes upward to form an elastic stop plate, the middle of the W-shaped cover plate protrudes downward to form an elastic pressure plate, the outer end plate is detachably connected to the outer port of the W-shaped shell plate, the W-shaped cover plate is detachably installed to the upper port of the W-shaped shell plate, and a copper row port is longitudinally opened on a vertical side plate of the W-shaped shell plate adjacent to the outer end plate.

[0016] Compared with the prior art, the beneficial effects of the present invention are: through the flexible connection method (i.e., using flexible cables) design of the flexible connector, the column winding function is realized, which effectively reduces the right-angle busbar, three-section customized short busbar, and fault points (from 8 to 2). At the same time, the specially designed cable and busbar transfer method ensures the reliability of the soft and hard connection and meets the requirement of small vertical space occupancy. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 It is a structural schematic diagram of a terminal busbar busbar flexible connector of the present invention;

[0018] Figure 2 is an exploded schematic diagram of a flexible connector;

[0019] Figure 3 It is a structural schematic diagram of the soft connection component;

[0020] Figure 4 This is a schematic diagram of the exploded view of the soft connection assembly;

[0021] Figure 5 It is a schematic diagram of the cable insertion side of the flexible connector;

[0022] Figure 6 for Figure 5 Schematic diagram of removing the insulating pad;

[0023] Figure 7 A schematic diagram of using a cable lock for the last soft connection component;

[0024] Figure 8 It is the layout diagram of the soft connection components;

[0025] Fig. 9 This is a front view of the soft connection assembly layout.

[0026] In the figure:

[0027] 100, soft connection assembly; 101, flexible connection plate; 102, cable lock; 103, reinforcement plate; 104, pressure block; 105, set screw; 106, copper busbar sleeve; 107, stop inclined plate; 108, П-shaped cavity plate; 109, inclined buckle plate; 110, flat buckle end plate;

[0028] 200, insulating pad;

[0029] 300, Sheet metal sheathing plate;

[0030] 400, housing; 410, W-shaped housing plate; 411, elastic stop plate; 412, copper row port; 420, W-shaped cover plate; 421, elastic pressure plate; 430, outer end plate;

[0031] 500. Assembly bolt assembly. DETAILED DESCRIPTION

[0032] In order to make the purpose, technical solution and advantages of the embodiments of the present invention clearer, the technical solution in the embodiments of the present invention will be clearly and completely described below in conjunction with the 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 creative work are within the scope of protection of the present invention.

[0033] See also Figure 1 to Figure 9 A terminal busbar flexible connector includes five soft connection components 100, six insulating pads 200, two sheet metal sheathing plates 300, a shell 400 and a plurality of assembly bolt components 500.

[0034] Connection relationship: the flexible connection component 100, the insulating pad 200, and the sheet metal sheath plate 300 are installed in the shell 400 through the assembly bolt assembly 500, and the five flexible connection components 100 are arranged in an alternating manner between the six insulating pads 200 arranged in an alternating manner, and the sheet metal sheath plate 300 is arranged between the outer surface of the outermost insulating pad 200 and the inner surface of the shell 400. The rear end of the shell 400 is fully open, and a copper row opening 412 is opened on a side end face of the shell 400 near the front end face; the flexible connection component 100 is T-shaped, including two cable connection ends and a copper row flexible connection end, and the five copper row flexible connection ends arranged in an alternating manner extend out of the shell 400 from the copper row opening 412.

[0035] In this embodiment, the number N of flexible connection components is five, which is mainly for AC three-phase five-wire bus applications. If it is used for other terminal bus applications (such as AC three-phase four-wire bus, high-voltage DC bus, etc.), the corresponding flexible connection components 100 are two to five; the corresponding insulating pads 200 are three to six, and the corresponding shell size will also change accordingly.

[0036] Soft connection components

[0037] The flexible connection assembly 100 includes two flexible connection plates 101 that are butt-jointed up and down, a cable lock buckle 102, a reinforcing plate 103, a pressure block 104, a set screw 105, and a copper busbar sleeve 106. A stopper inclined plate 107 is extended outwardly at the same side of the two vertical ends of the T-shaped flexible connection plate 101, and the upper and lower stopper inclined plates 107 are arranged back to back to form a V-shaped inner stopper end of the cable; the cable lock buckle 102 includes an integrally formed П-shaped cavity plate 108, an inclined buckle plate 109 and a flat buckle end plate 110, and the inclined buckle plate 109 accommodates the stopper inclined plate 107 in the inner end of the accommodating cavity of the cable lock buckle 102, and the flat buckle end plate 110 and the flexible connection plate 101 are fastened and connected by bolts or rivets; the reinforcing plate 10 3. The pressing block 104 is arranged inside the cable lock buckle 102, and the reinforcing plate 103 with a fixing screw hole is arranged on the inner end surface of the П-shaped cavity plate 108. The pressing block 104 with an arc-shaped or V-shaped inner side surface is arranged between the reinforcing plate 103 and the V-shaped inner stop end, and the inner side surface of the pressing block 104 is arranged toward the V-shaped inner stop end. The fixing screw 105 passes through the outer end surface of the П-shaped cavity plate 108 and the fixing screw hole of the reinforcing plate 103 and then abuts against the outer side surface of the pressing block 104, thereby forming the cable connection end of the soft connection component 100; the copper busbar sleeve 106 is plugged into the other end of the two T-shaped flexible connection plates 101 that are butt-jointed up and down to form the copper busbar soft connection end of the soft connection component 100.

[0038] When in use, the copper busbar soft connection end of the soft connection assembly 100 connects the copper busbar to the flexible connection board 101 through the copper busbar connector; and the cable connection end is connected to the cable.

[0039] In an alternative embodiment, the flexible connection plate 101 of the flexible connection assembly 100 is integrally formed with the copper busbar, thereby eliminating the copper busbar connector.

[0040] Furthermore, the five flexible connection components 100 are connected to the A-phase copper busbar and the A-phase cable, the B-phase copper busbar and the B-phase cable, the C-phase copper busbar and the C-phase cable, the neutral copper busbar and the neutral cable, and the ground copper busbar and the ground cable in sequence from top to bottom. The end of the copper busbar is connected to the copper busbar flexible connection end of the flexible connection component 100 through a copper busbar connector, and one end of the cable is locked at the cable connection end of the flexible connection component 100.

[0041] Among them, the A-phase cable, the B-phase cable, the C-phase cable, and the neutral cable adopt a double-cable design, and the ground cable adopts a double-cable or single-cable design. When the ground cable adopts a single cable, a total of nine cables are connected, which can support a current load of 1000A.

[0042] See also Figure 5-Figure 9 , nine cables are arranged in multiple layers and overlapped to reduce vertical space occupancy.

[0043] Furthermore, a flexible cable sleeve is provided to sheath all the cables.

[0044] Insulation pad

[0045] The insulating pad 200 is provided with a groove and an assembly through hole that match the shape of the flexible connection component 100. A flexible connection cavity is formed between two adjacent insulating pads 200 through the groove, and the flexible connection component 100 is pressed and positioned by the two adjacent insulating pads 200.

[0046] shell

[0047] The housing 400 includes a W-shaped shell plate 410, a W-shaped cover plate 420 and an outer end plate 430. The middle of the bottom of the W-shaped shell plate 410 protrudes upward to form an elastic stop plate 411, and the middle of the W-shaped cover plate 420 protrudes downward to form an elastic pressure plate 421. The outer end plate 430 is detachably connected to the outer port of the W-shaped shell plate 410, and the W-shaped cover plate 420 is detachably installed to the upper port of the W-shaped shell plate 410, and a copper row port 412 is longitudinally opened on a vertical side plate of the W-shaped shell plate 410 adjacent to the outer end plate 430.

[0048] During connection, the copper busbar sleeve 106 is snapped into place at the copper busbar opening 412 .

[0049] In summary, the flexible connector has the following characteristics:

[0050] ① The electrical connection is more reliable: the cables are arranged in an overlapping manner, and the number of connection points is reduced from the traditional 8 to 2;

[0051] ②Large current capacity: dual cable design, small size and large capacity;

[0052] ③ Ultra-thin clamping structure: The herringbone opening design of the busbar ensures the conductive contact surface, and the lateral clamping mode of the clamping structure ensures the minimization of the vertical volume.

[0053] 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 embodiments of the present invention.

Claims

1. A terminal busbar flexible connector, characterized in that: The flexible connector comprises N flexible connection components (100), N+1 insulating pads (200), two sheet metal sheathing plates (300), a housing (400) and a plurality of assembly bolt components (500), wherein N is a positive integer, the flexible connection components (100), the insulating pads (200) and the sheet metal sheathing plates (300) are installed in the housing (400) via the assembly bolt components (500), the N flexible connection components (100) are arranged in an alternating manner with upper and lower intervals and arranged between the N+1 insulating pads (200) arranged with upper and lower intervals, and the sheet metal sheathing plates (300) are arranged on the outermost insulating pads (20 0) and the inner surface of the housing (400), the rear end of the housing (400) is fully open, and a copper busbar opening (412) is provided on one side end surface of the housing (400) near the front end surface; the flexible connection component (100) is T-shaped, comprising two cable connection ends and a copper busbar flexible connection end, and N copper busbar flexible connection ends overlapped and spaced from top to bottom extend out of the housing (400) from the copper busbar opening (412), the flexible connection component (100) comprising two flexible connection plates (101) butted against each other from top to bottom, a cable lock buckle (102), a reinforcing plate (103), a pressing block (104), a set screw (105), and a copper busbar sleeve (106), and a stopper inclined plate (107) is extended outwardly at the same side of the two vertical ends of the T-shaped flexible connecting plate (101), and the upper and lower stopper inclined plates (107) are arranged in reverse to form a V-shaped inner stopper end of the cable; the cable lock (102) comprises an integrally formed П-shaped cavity plate (108), an inclined buckle plate (109) and a flat buckle end plate (110), the inclined buckle plate (109) matching the stopper inclined plate (107) in the inner end of the accommodating cavity of the cable lock (102), and the flat buckle end plate (110) and the flexible connecting plate (101) are fastened and connected by bolts or rivets; the reinforcing plate (10 3) A pressure block (104) is arranged inside the cable lock buckle (102), and the reinforcing plate (103) with a fixing screw hole is arranged on the inner end surface of the П-shaped cavity plate (108), the pressure block (104) whose inner side surface is an arc-shaped or V-shaped surface is arranged between the reinforcing plate (103) and the V-shaped inner stop end, and the inner side surface of the pressure block (104) is arranged toward the V-shaped inner stop end, and the fixing screw (105) passes through the outer end surface of the П-shaped cavity plate (108) and the fixing screw hole of the reinforcing plate (103) and then abuts against the outer side surface of the pressure block (104), thereby forming a cable connection end of the flexible connection assembly (100);The copper busbar sleeve (106) is plugged into the other end of two T-shaped flexible connection plates (101) butted against each other to form a copper busbar flexible connection end of the flexible connection component (100); the insulating pad (200) is provided with a groove and an assembly through hole adapted to the shape of the flexible connection component (100); a flexible connection cavity is formed between two adjacent insulating pads (200) through the groove; and the flexible connection component (100) is pressed and positioned by the two adjacent insulating pads (200). ; 2. The flexible connector according to claim 1, characterized in that: The copper busbar soft connection end of the soft connection component (100) connects the copper busbar to the flexible connection board (101) via a copper busbar connector.

3. The flexible connector according to claim 1, characterized in that: The flexible connection plate (101) of the soft connection component (100) is integrally formed with the copper busbar, thereby eliminating the copper busbar connector.

4. The flexible connector according to claim 1, characterized in that: N flexible connection components (100) are connected to N copper bars and N cables in sequence from top to bottom, the ends of the copper bars are connected to the copper bar flexible connection ends of the flexible connection components (100) via copper bar connectors, and one end of the cable is locked to the cable connection end of the flexible connection components (100).

5. The flexible connector according to claim 4, characterized in that: A flexible cable sleeve is provided to enclose all cables.

6. The flexible connector according to claim 5, characterized in that: The number of the flexible connection components (100) is five, and the number of the insulating pads (200) is six. The five flexible connection components (100) are connected in sequence from top to bottom to the A-phase copper busbar and the A-phase cable, the B-phase copper busbar and the B-phase cable, the C-phase copper busbar and the C-phase cable, the neutral copper busbar and the neutral cable, and the ground copper busbar and the ground cable. The A-phase cable, the B-phase cable, the C-phase cable, and the neutral cable are designed in pairs, and the ground cable is designed in pairs or in a single cable.

7. The flexible connector according to claim 1, characterized in that: The housing (400) comprises a W-shaped shell plate (410), a W-shaped cover plate (420) and an outer end plate (430); the middle of the bottom of the W-shaped shell plate (410) protrudes upward to form an elastic stop plate (411); the middle of the W-shaped cover plate (420) protrudes downward to form an elastic pressure plate (421); the outer end plate (430) is detachably connected to the outer port of the W-shaped shell plate (410); the W-shaped cover plate (420) is detachably mounted to the upper port of the W-shaped shell plate (410); and a copper row port (412) is longitudinally opened on a vertical side plate of the W-shaped shell plate (410) adjacent to the outer end plate (430).

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