CN100452535C

CN100452535C - Conductor connector for high-voltage switch cabinet

Info

Publication number: CN100452535C
Application number: CNB2006100527602A
Authority: CN
Inventors: 汪家养; 俞慧忠; 周庆清; 苏伟民
Original assignee: Zhejiang Switchgear Factory Co ltd
Current assignee: Zhejiang Switchgear Factory Co ltd
Priority date: 2006-08-02
Filing date: 2006-08-02
Publication date: 2009-01-14
Anticipated expiration: 2026-08-02
Also published as: CN101118988A

Abstract

The invention relates to a conductor coupler for a high-voltage switch cabinet, which comprises buses with circular sections, wherein the buses are connected through the coupler; each connecting end is provided with a compression nut which is matched with the external thread of the connecting end. The invention saves the space of the switch cabinet to the utmost extent, reduces the volume of the switch cabinet, also makes the electric field distribution more reasonable and improves the insulating property; and simultaneously, the problem of connection between the buses is well solved.

Description

Conductor coupler for high-voltage switch cabinet

Technical field

The invention belongs to electric field, more specifically, relate to the high-tension switch cabinet of the more complicated electric break-make of control, particularly relate to a kind of conductor coupler for high-voltage switch cabinet.

Background technology

High-tension switch cabinet is the switchgear that send power transformation and commercial power field to be in daily use, mainly form by the bus and a series of air switch that are installed in the cabinet, bus is busbar again, make with the material that conductions such as copper, aluminium are good, be used to connect the conductor in the switch cubicle, play the effect of delivered current.Present high-tension switch cabinet generally adopts the rectangle busbar, and promptly the cross section of bus is a rectangle, and available screw connects between the bus like this, and is easy to connect and conduction is good.Its problem is that correspondingly busbar cross-section also will strengthen when the switch cubicle design capacity is big, the busbar width often can reach 120mm and more than; So just take a big chunk volume of switch cubicle, be difficult to realize the requirement of switch cubicle miniaturization development.In addition, the Electric Field Distribution of rectangle busbar in switch cubicle is very inhomogeneous, and the reliability of insulation reduces greatly.

The basic general knowledge of plane geometry is told us, and under the identical situation of area, circular diameter is the shortest.Obviously, adopt circular bus to be beneficial to most and save the switch cubicle volume; Simultaneously, the Electric Field Distribution of circular bus also is the most rational, helps insulation.But the connection of circular bus difficulty, particularly being connected of main bus bar and branch bar (connecting as T shape) is very inconvenient, and contact area is also little, causes conduction bad, can't use in jumbo switch cubicle.

Summary of the invention

What the present invention will solve is the problem that high-tension switch cabinet adopts the rectangle busbar to be brought, and a kind of conductor coupler for high-voltage switch cabinet is provided.

The technical solution used in the present invention is such: conductor coupler for high-voltage switch cabinet, comprise that the cross section is circular bus, it is characterized in that: connect by coupling between the bus, described coupling is made with electric conducting material, comprise at least two union ends, union end is the pipe shape of hollow, and its internal diameter matches with the external diameter of bus, and its outer wall is provided with screw thread; Each union end has a clamp nut, matches with the external screw thread of union end.

Further, the port of union end has some grooves;

The inwall of union end is provided with a plurality of ring-type fingertips;

The clamp nut outer end also has a locking nut;

Described coupling can be through-type, comprises two union ends, and its middle part outer wall is provided with flat clamping; Also can be " T " font, comprise three union ends; Also can be " ten " font, comprise four union ends.

The present invention adopts circular bus, has saved the space of switch cubicle to greatest extent, has dwindled the volume of switch cubicle, also makes Electric Field Distribution more reasonable, has improved insulation property; On the other hand, adopt coupling of the present invention after, solved the problem that connects between the bus well.The bus coupling is selected suitable shape in use as required, inserts bus in the union end respectively then, be fixed with clamp nut again, owing between union end and the bus excellent contact is arranged, so the entire circuit conduction is good, and this connected mode is also very convenient.The port of union end has sulculus, so just has certain elastic deformation, easier fixedly bus; The union end inwall is provided with a plurality of ring-type fingertips, can further improve the contact area with bus; The locking nut of clamp nut outer end is the technical scheme that strengthens safety, prevents clamp nut loose or dislocation in use; The different shape of coupling is applicable to various connection occasions, and all bus connecting modes of using in the high-tension switch cabinet have been contained in the present invention basically, and it is required to satisfy high-tension switch cabinet.

Description of drawings

Fig. 1 is the schematic diagram of prior art high-tension switch cabinet median generatrix.

Fig. 2 is a bus connection diagram of the present invention.

Fig. 3, Fig. 4 are the conductor coupler schematic diagrames of embodiment one.

Fig. 5, Fig. 6 are the conductor coupler schematic diagrames of embodiment two.

Fig. 7, Fig. 8 are the conductor coupler schematic diagrames of embodiment three.

Embodiment

Referring to Fig. 1.The switch cubicle of prior art adopts rectangular bus bar as shown in the figure, and wherein 11 is horizontal bus, and the 12nd, branch bar, the both is a rectangle, links together with screw 13, can guarantee the bonding strength and the contact area of bus.

Referring to Fig. 2.The cross section of bus 21 used in the present invention is circular, connects by the coupling 24 that conducts electricity between two sections buses, and two sections buses are inserted respectively in two union ends of coupling, closely contact with coupling; Two union ends respectively have a clamp nut 23 outward, and union end and bus are compressed; The clamp nut outer end has a locking nut 22 in addition, deviates from order to prevent clamp nut.

Referring to Fig. 3, Fig. 4.The coupling 24 of present embodiment is through-type, and two union ends 241,242 are arranged, and the outer wall of union end is provided with screw thread 25, in order to being connected of clamp nut; Port has some grooves 26, and the inwall of union end is provided with a plurality of ring-type fingertips 27, to contact with bus better; The middle part outer wall of coupling 24 is provided with flat clamping 28, is convenient to use when mounted tool holder.

Referring to Fig. 5, Fig. 6.The coupling 24 of present embodiment is " T " font, and three union ends 241,242,243 are arranged, and the outer wall of union end is provided with screw thread 25, in order to being connected of clamp nut; Port has some grooves 26, and the inwall of union end is provided with a plurality of ring-type fingertips 27, to contact with bus better.

Referring to Fig. 7, Fig. 8.The coupling 24 of present embodiment is " ten " font, and four union ends 241,242,243,244 are arranged, and the outer wall of union end is provided with screw thread 25, in order to being connected of clamp nut; Port has some grooves 26, and the inwall of union end is provided with a plurality of ring-type fingertips 27, to contact with bus better.

Claims

1. conductor coupler for high-voltage switch cabinet, comprise bus, it is characterized in that: busbar cross-section is for circular, connect by the bus coupling between the bus, described bus coupling is made with electric conducting material, comprises at least two union ends, and union end is the pipe shape of hollow, its internal diameter matches with the external diameter of bus, and its outer wall is provided with screw thread; Each union end has a clamp nut, matches with the external screw thread of union end.

2. conductor coupler as claimed in claim 1 is characterized in that: the port of union end has some grooves.

3. conductor coupler as claimed in claim 2 is characterized in that: the inwall of union end is provided with a plurality of ring-type fingertips.

4. conductor coupler as claimed in claim 3 is characterized in that: the clamp nut outer end also has a locking nut.

5. as each described conductor coupler of claim 1-4, it is characterized in that: described coupling is through-type, comprises two union ends, and its middle part outer wall is provided with flat clamping.

6. as each described conductor coupler of claim 1-4, it is characterized in that: described coupling is " T " font, comprises three union ends.

7. as each described conductor coupler of claim 1-4, it is characterized in that: described coupling is " ten " font, comprises four union ends.