Distribution box multi-way switch and wire inlet end structure thereof

Abstract

The utility model discloses a distribution box multi-way switch and a wire inlet end structure thereof, and the wire inlet end structure of the distribution box multi-way switch comprises a plurality of wire inlet end copper bars, one end of each wire inlet end copper bar is connected with each wire inlet of a circuit breaker; the two ends of the parallel copper bar are used for being connected with the two wire inlet end copper bars, and the two wire inlet end copper bars connected with the parallel copper bar are connected with the same wire inlet end of the circuit breaker; and the power supply copper bars are arranged in one-to-one correspondence with the parallel copper bars, and two ends of the power supply copper bars are respectively connected with a power supply cable and the parallel copper bars. According to the utility model, the wiring mode is simple and convenient, the wiring layout in the distribution box after wiring is tidy, the logic is clear, the wiring efficiency and maintenance efficiency of the switch are improved, and the maintenance difficulty of the multi-way switch of the distribution box is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of electrical equipment, in particular to a multi-way switch of a distribution box and an incoming line terminal structure thereof. Background Art

[0002] A circuit breaker is a switch device that can close, carry and break the current under normal circuit conditions and close, carry and break the current under abnormal circuit conditions within a specified time. In recent years, the subway communication system has undergone equipment renewal and transformation. The two-way power supply box that supplies power to the communication system uses two low-voltage molded case circuit breakers as the main power switch. The incoming line side of the two switches needs to be connected in parallel to the power cable.

[0003] However, the cross-section of the power cable core introduced into the subway communication system is large, which does not match the rated value of the circuit breaker. The cable core must also be connected to two switches at the same time, so the crimping terminals of the cable core cannot be directly connected to the upper end of the molded case circuit breaker; and when the cable cores are connected to the transition terminals and then to the incoming line terminals of the circuit breaker, the wiring of the power box is complicated, the wiring and maintenance are difficult, and the electrical spacing between the terminals is small, which may pose a safety hazard.

[0004] In view of this, there is an urgent need to improve a multi-way switch and its incoming line wiring structure to improve the convenience of the incoming line wiring of the multi-way switch and improve the electrical safety of the multi-way switch. Utility Model Content

[0005] The technical problem to be solved by the utility model is that the multi-way switch and its incoming line wiring structure in the prior art are inconvenient to access, the electrical spacing of the wiring terminals is small, and there are potential safety hazards.

[0006] In order to solve the above technical problems, the technical solutions adopted by the utility model are as follows:

[0007] A line-in terminal structure of a multi-way switch of a distribution box, comprising:

[0008] A number of incoming copper bars, one end of which is connected to each incoming port of the circuit breaker;

[0009] A parallel copper bar, both ends of which are used to connect the two incoming copper bars, and the two incoming copper bars connected to the parallel copper bar are connected to the same incoming terminals of the circuit breaker;

[0010] The power copper busbar is arranged in one-to-one correspondence with the parallel copper busbar, and two ends of the power copper busbar are respectively connected to the power cable and the parallel copper busbar.

[0011] In the above technical solution, preferably, the parallel copper busbar is horizontally arranged, and a parallel horizontal portion is provided on the end of the incoming copper busbar away from the incoming terminal of the circuit breaker, and bolts penetrate the parallel copper busbar and the parallel horizontal portion to fix the parallel copper busbar to the incoming copper busbar.

[0012] In the above technical solution, preferably, a power copper bar horizontal portion is provided on the end of the power copper bar away from the power cable, and bolts penetrate the parallel copper bar and the power copper bar horizontal portion to fix the parallel copper bar and the power copper bar.

[0013] In the above technical solution, preferably, the power copper busbar is provided with an insulating support portion, which is fixed to the inner wall or wall of the distribution box and arranged between the power copper busbar and the inner wall or wall of the distribution box.

[0014] In the above technical solution, preferably, the incoming copper busbar, the parallel copper busbar and the power copper busbar are covered with a colored insulating layer, and the color of the colored insulating layer is the same as that of the incoming copper busbar, the parallel copper busbar and the power copper busbar connected to the same type of incoming port on the circuit breaker.

[0015] In the above technical solution, preferably, a power wiring hole is provided on the end of the power copper busbar away from the parallel copper busbar.

[0016] A multi-way switch for a distribution box comprises a plurality of circuit breakers, wherein the line inlets of the circuit breakers are connected in parallel via the line inlet terminal structure of the multi-way switch for the distribution box.

[0017] Compared with the prior art, the multi-way switch of the distribution box and the incoming line terminal structure provided by the utility model have a simple structure. Each incoming line port of the circuit breaker is respectively connected to the incoming line terminal copper busbar, so that a safe electrical spacing is maintained between the wirings on each incoming line port of the circuit breaker, thereby improving the safety of the multi-way switch of the distribution box; the incoming line terminal copper busbars of the same type are connected by parallel copper busbars, and the parallel copper busbars are connected to the power supply through the power supply copper busbar, without the need for wiring connection, thereby improving the neatness of the wiring in the distribution box and reducing the difficulty of maintenance of the distribution box. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a front view of the incoming line structure of the multi-way switch of the distribution box in the utility model;

[0019] Figure 2 It is a side view of the incoming line end structure of the multi-way switch of the distribution box in the utility model;

[0020] Figure 3 for Figure 1 The enlarged schematic diagram of point A in the middle;

[0021] Figure 4 for Figure 1 A magnified schematic diagram of point B in the middle.

[0022] in, Figures 1 to 4 The corresponding relationship between the names of the components and the reference numerals is as follows:

[0023] Circuit breaker 1, incoming copper bar 2, parallel copper bar 3, power copper bar 4,

[0024] Parallel horizontal part 21,

[0025] The power copper bar has a horizontal portion 41 , an insulating support portion 42 , and a power wiring hole 43 . DETAILED DESCRIPTION

[0026] The utility model provides a multi-way switch for a distribution box and a line inlet terminal structure thereof, wherein the wiring method is simple and convenient, and the wiring layout in the distribution box after wiring is neat and logically clear, thereby improving the wiring efficiency and maintenance efficiency of the switch and reducing the maintenance difficulty of the multi-way switch for the distribution box. The utility model is described in detail below in conjunction with the accompanying drawings and specific implementation methods of the specification.

[0027] like Figures 1 to 4 As shown, the multi-way switch of the distribution box provided by the utility model comprises a plurality of circuit breakers 1. The line inlets of the circuit breakers 1 are connected in parallel.

[0028] The utility model also provides an incoming line terminal structure of a multi-way switch of a distribution box, comprising a plurality of incoming line terminal copper bars 2, parallel copper bars 3 and a power copper bar 4.

[0029] One end of a plurality of incoming copper bars 2 is respectively connected to each incoming port of the circuit breaker 1. Both ends of the parallel copper bar 3 are used to connect two incoming copper bars 2, and the two incoming copper bars 2 connected to the parallel copper bar 3 are connected to the same incoming terminal of the circuit breaker 1. The power copper bar 4 is arranged in one-to-one correspondence with the parallel copper bar 3, and both ends of the power copper bar 4 are respectively connected to the power cable and the parallel copper bar 3.

[0030] In one embodiment of the utility model, preferably, the parallel copper busbar 3 is horizontally arranged, and a parallel horizontal portion 21 is provided on the end of the incoming copper busbar 2 away from the incoming end of the circuit breaker 1, and bolts penetrate the parallel copper busbar 3 and the parallel horizontal portion 21 to fix the parallel copper busbar 3 and the incoming copper busbar 2.

[0031] In another embodiment of the utility model, preferably, a power copper bar horizontal portion 41 is provided on the end of the power copper bar 4 away from the power cable, and bolts penetrate the parallel copper bar 3 and the power copper bar horizontal portion 41 to fix the parallel copper bar 3 and the power copper bar 4.

[0032] In another embodiment of the utility model, preferably, an insulating support portion 42 is provided on the power copper bus 4, and the insulating support portion 42 is fixed to the inner wall or wall of the distribution box and is arranged between the power copper bus 4 and the inner wall or wall of the distribution box.

[0033] In another embodiment of the utility model, preferably, the incoming copper busbar 2, the parallel copper busbar 3, and the power copper busbar 4 are covered with a colored insulation layer, which is the same color as the colored insulation layer of the incoming copper busbar 2, the parallel copper busbar 3, and the power copper busbar 4 connected to the same type of incoming port on the circuit breaker 1.

[0034] In another embodiment of the present invention, preferably, a power wiring hole 43 is provided on one end of the power copper busbar 4 away from the parallel copper busbar 3 for connecting a power line.

[0035] Compared with the prior art, the multi-way switch of the distribution box and the incoming line terminal structure provided by the utility model have the following advantages:

[0036] (1) The structure is simple. Each incoming line port of the circuit breaker is connected to the incoming line copper busbar, so that the wiring on each incoming line port of the circuit breaker maintains a safe electrical spacing, which improves the safety of the multi-way switch in the distribution box; the incoming line copper busbars of the same type are connected by parallel copper busbars, and the parallel copper busbars are connected to the power supply through the power copper busbar, without the need for wiring connection, which improves the neatness of the wiring in the distribution box and reduces the difficulty of maintenance of the distribution box;

[0037] (2) The parallel copper bar is arranged horizontally, and a parallel horizontal part is provided on the end of the incoming copper bar away from the incoming terminal of the circuit breaker, and bolts penetrate the parallel copper bar and the parallel horizontal part to fix the parallel copper bar to the incoming copper bar; a power copper bar horizontal part is provided on the end of the power copper bar away from the power supply, and bolts penetrate the parallel copper bar and the horizontal part of the power copper bar to fix the parallel copper bar to the power copper bar, thereby improving the connection convenience and connection efficiency between the incoming copper bar and the parallel copper bar, and between the parallel copper bar and the power copper bar;

[0038] (3) The copper busbars at the incoming line end, parallel copper busbars, and power copper busbars are covered with colored insulation layers, which are the same color as the colored insulation layers of the copper busbars at the incoming line end, parallel copper busbars, and power copper busbars connected to the same type of incoming line ports on the circuit breaker, further improving the neatness of the wiring in the distribution box, reducing the difficulty of maintenance of the distribution box, and improving the maintenance efficiency of the distribution box;

[0039] (4) A power wiring hole is provided on the end of the power copper busbar away from the parallel copper busbar, and the copper nose of the cable can be directly connected to the power wiring hole, which reduces the wiring difficulty of the power cable and improves the wiring efficiency of the power cable.

[0040] The present invention is not limited to the above-mentioned optimal implementation mode. Anyone should be aware of the structural changes made under the inspiration of the present invention. All technical solutions that are the same or similar to the present invention fall within the protection scope of the present invention.

Claims

1. A line-in terminal structure of a multi-way switch in a distribution box, characterized in that: include: A number of incoming copper bars, one end of which is connected to each incoming port of the circuit breaker; A parallel copper bar, both ends of which are used to connect the two incoming copper bars, and the two incoming copper bars connected to the parallel copper bar are connected to the same incoming terminals of the circuit breaker; A power copper busbar is arranged one-to-one corresponding to the parallel copper busbar, and two ends of the power copper busbar are connected to the power cable and the parallel copper busbar respectively; The parallel copper bar is arranged horizontally, and a parallel horizontal part is arranged on one end of the inlet copper bar away from the inlet end of the circuit breaker, and a bolt passes through the parallel copper bar and the parallel horizontal part to fix the parallel copper bar to the inlet copper bar; A power copper bar horizontal portion is provided on one end of the power copper bar away from the power cable, and a bolt penetrates the parallel copper bar and the power copper bar horizontal portion to fix the parallel copper bar and the power copper bar.

2. The line inlet structure of the multi-way switch of the distribution box according to claim 1 is characterized in that: The power copper busbar is provided with an insulating support portion, which is fixed on the inner wall or wall of the distribution box and arranged between the power copper busbar and the inner wall or wall of the distribution box.

3. The line inlet structure of the multi-way switch of the distribution box according to claim 1 is characterized in that: The incoming copper busbar, the parallel copper busbar and the power copper busbar are covered with a colored insulating layer, and the color of the colored insulating layer is the same as that of the incoming copper busbar, the parallel copper busbar and the power copper busbar connected to the same type of incoming port on the circuit breaker.

4. The line inlet structure of the multi-way switch of the distribution box according to claim 1 is characterized in that: A power wiring hole is provided on one end of the power copper busbar away from the parallel copper busbar.

5. A multi-way switch for a distribution box, characterized in that: It comprises a plurality of circuit breakers, the line inlets of the circuit breakers being connected in parallel through the line inlet terminal structure of the multi-way switch of the distribution box as claimed in any one of claims 1 to 4.

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