CN2531563Y

CN2531563Y - High-current multi-path output three-phase four-wire connection box

Info

Publication number: CN2531563Y
Application number: CN 02215022
Authority: CN
Inventors: 董建伦
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-01-07
Filing date: 2002-01-07
Publication date: 2003-01-15
Anticipated expiration: 2012-01-07

Abstract

The utility model discloses a high-current multi-path output three-phase four-wire connection box which comprises an insulation box and a box cover, wherein three phase wire metallic joint blocks which are mutually insulating and detached and a zero line metallic joint block are fixed in the insulation box. The upper end of each metallic joint block is provided with a pressure connection screw for the electric current inlet wire, and the lower end is provided with a crossing screw and a wiring through hole. The shape of the wire at the lower end of each metallic joint block is a two-layer step or three-layer step shape. The crossing screws are respectively positioned on the vertical step surface of each step. The wiring through holes respectively and correspondingly are two rows or three rows of wiring through holes. Compared with the existing high-current multi-path output three-phase four-wire connection box, the utility model can be connected with more circuit wires in a crossing mode. The entire circuit wiring box is not enlarged at the plane direction, therefore, the utility model can not occupy more installation area and can completely satisfy the developing request of big capacitance, many wires and small volume simultaneously.

Description

Big current multi-way output three-phase and four-line terminal box

Technical field

The utility model relates to a kind of connector that circuit connects, specifically a kind of three-phase and four-line terminal box of being used for.

Background technology

The applicant promptly discloses a kind of circuit terminal box in application in 95 years and the utility model patent that is authorized " Every household has an ammeter special junction box " (patent No. is 95220254.9).But along with growth in the living standard, the urban household power consumption increases day by day at present, correspondingly the requirement that capacity is big, outlet is many is proposed also the circuit terminal box, this just makes the circuit terminal box must expand to in-plane for increasing terminal screw and wiring perforation, and the erection space that takies certainly will will increase.Simultaneously, the progress of scientific and technological level and material industry makes progressively miniaturizations of circuit appliance device such as each ammeter, distribution box, this also requires the circuit terminal box must adapt to the requirement of miniaturization, and present three-phase and four-line circuit terminal box is difficult to satisfy simultaneously the requirement of above-mentioned this two aspect.

Summary of the invention

Technical problem to be solved in the utility model is to propose a kind of structure to box body and metal connection piece and carries out improved big current multi-way output three-phase and four-line terminal box, to adapt to the requirement that capacity is big, outlet is many, volume is little.

For solving the problems of the technologies described above, the big current multi-way output of the utility model three-phase and four-line terminal box comprises insulation box body and lid, three phase line metal contiguous blocks and a zero line metal contiguous block that insulation box body internal fixation has mutual insulation to separate, the upper end of each metal contiguous block is provided with the crimping screw of electric current inlet wire, its lower end is provided with cross-under screw and wiring perforation, each metal contiguous block lower end wiring part be shaped as two-layer or three layers step-like, the cross-under screw lays respectively on the vertical terrace of each step, and the wiring perforation correspondingly is provided with two row or three rows respectively.

Owing to adopted above-mentioned technical pattern, the wiring part of phase line metal contiguous block and zero line metal connection piece lower end has respectively formed two-layer or three layers of step, the wiring perforation also correspondingly is provided with two row or three rows respectively, like this, launch the situation of circuit cross-under in the plane compares with the existing line terminal box, the more circuit wiring of its energy cross-under, and whole circuit terminal box does not increase at in-plane, thereby can not take more erection space, so it can satisfy fully simultaneously, and capacity is big, outlet many and the little demand for development of volume.

Description of drawings

Fig. 1 is the Facad structure schematic diagram of big current multi-way output three-phase and four-line terminal box lid;

Fig. 2 is the Facad structure schematic diagram of big current multi-way output three-phase and four-line terminal box box body;

Fig. 3 is the vertical view with respect to Fig. 2;

Fig. 4 is the upward view with respect to Fig. 2;

Fig. 5 is the end view of each metal connection piece in the big current multi-way output three-phase and four-line terminal box;

Fig. 6 is the Facad structure schematic diagram of another execution mode three-phase and four-line terminal box box body;

Fig. 7 is the upward view with respect to Fig. 6;

Fig. 8 is the end view of each metal connection piece among Fig. 6.

Embodiment

As shown in the figure, big current multi-way output three-phase and four-line terminal box comprises insulation box body 1 and transparent box cover 2, and insulation box body 1 and transparent box cover 2 are fixed together by hole 3, and transparent box cover 2 is provided with seal nasal perforation 4.Shape according to phase line metal contiguous block 51, zero line metal contiguous block 52 in the insulation box body 1 hollows out, three phase line metal contiguous blocks 51 and a zero line metal contiguous block 52 snap in insulation box body 1 interior also mutually insulated respectively separately, like this, manufacturing and installation are all very convenient.Phase line metal contiguous block 51 is identical with zero line metal contiguous block 52 shapes, its upper end all is provided with the crimping screw 6 of electric current inlet wire, its lower end is divided into two-layer step, the vertical terrace of every layer of step is provided with row's cross-under screw 7, correspondingly offers two row's wiring perforation 8 on the lower end side of each metal

contiguous block

51,52 respectively.7 on crimping screw 6 and cross-under screw are separated by protruding beam 11, and indents in the middle of the protruding beam 11 are used to paste the terminal box sign.Among Fig. 2, Fig. 6, the fixing hole of the big current multi-way output of 9 expressions three-phase and four-line terminal box, among Fig. 1, Fig. 3, Fig. 6, Fig. 7,10 expression pads.

The wiring part of phase line metal connection piece 51, zero line metal connection piece 52 lower ends also can be made as three layers of step in the big current multi-way output of the utility model three-phase and four-line terminal box, as shown in Figure 6.Cross-under screw 7 and wiring perforation 8 correspondingly are provided with three rows respectively, as Fig. 6, shown in Figure 7, have so just increased a lot of wiring circuit numbers again.

Claims

1, big current multi-way output three-phase and four-line terminal box, comprise insulation box body and lid, three phase line metal contiguous blocks and a zero line metal contiguous block that described insulation box body internal fixation has mutual insulation to separate, the upper end of described each metal contiguous block is provided with the crimping screw of electric current inlet wire, its lower end is provided with cross-under screw and wiring perforation, it is characterized in that, described each metal contiguous block lower end wiring part be shaped as two-layer or three layers step-like, described cross-under screw lays respectively on the vertical terrace of each step, and described wiring perforation correspondingly is provided with two row or three rows respectively.

2, big current multi-way output three-phase and four-line terminal box as claimed in claim 1, it is characterized in that, shape according to described phase line metal contiguous block and zero line metal contiguous block in the described insulation box body hollows out, and described phase line metal contiguous block and zero line metal contiguous block snap in respectively in the described insulation box body.

3, big current multi-way output three-phase and four-line terminal box as claimed in claim 1 or 2 is characterized in that, is separated by protruding beam between described crimping screw and described cross-under screw, and the middle indent of described protruding beam also is pasted with the terminal box sign.