Hollowed-out wiring structure for circuit breaker mechanism box

Abstract

The utility model relates to a hollow wiring structure for a circuit breaker mechanism case, which comprises a case body and a wiring plate fixedly arranged in the case body, a wiring cavity is formed between the back surface of the wiring plate and the inner wall of the case body, three rows of mounting guide rails are transversely distributed on the front surface of the wiring plate, and single-layer terminals are mounted on the mounting guide rails. Four rows of long-strip-shaped threading holes are distributed in the wiring plate in the transverse direction and communicate with the wiring cavity, and the four rows of long-strip-shaped threading holes and the three rows of installation guide rails are distributed at intervals. According to the utility model, the single-layer terminal is arranged on the wiring board, so that the problem that the double-layer terminal is inconvenient for later maintenance and wiring change is solved, and the wiring cavity is used for hiding the circuit, so that the front surface of the wiring board is simpler, and the aesthetic degree of secondary wiring of a product is improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to circuit breaker mechanism box wiring technical field, specifically point to a kind of hollow wiring structure for circuit breaker mechanism box. BACKGROUND

[0002] 72.5-126kV porcelain column type circuit breaker mechanism box is relatively compact, internal space is smaller, secondary wiring board for installing terminal row is arranged in mechanism box, with secondary design standardization, the loop and signal of user requirement increase, terminal row usually adopts double-layer terminal, cable of upper layer wiring terminal can shield fastening bolt of lower layer wiring terminal cable when wiring, it is more difficult when field maintenance and wiring change. And existing terminal when wiring, line is wired on the front of wiring board, considering the wiring space demand of the front of wiring board, generally only two columns double-layer terminals can be fixed on the front of wiring board, certain space is wasted. And this wiring on the front of wiring board mode also makes the appearance of wiring worse. SUMMARY

[0003] The utility model provides a kind of hollow wiring structure for circuit breaker mechanism box to the deficiency of prior art, make terminal wiring more convenient, and it is more beautiful after wiring.

[0004] The utility model is realized through the following technical schemes, a kind of hollow wiring structure for circuit breaker mechanism box, including box and the wiring board fixed in box, wiring cavity is formed between the back of wiring board and box inner wall, three columns of installation guide rails are distributed along the front of wiring board in transverse direction, single-layer terminal is installed on the installation guide rail, four columns of long strip threading holes are distributed along the wiring board in transverse direction, four columns of long strip threading holes are all communicated with wiring cavity, and four columns of long strip threading holes and three columns of installation guide rails are spaced distribution.

[0005] The scheme is by being provided with single-layer terminal on wiring board, to avoid the problem that double-layer terminal is not convenient for later maintenance and wiring change. By being provided with wiring cavity between wiring board and box, when single-layer terminal wiring, line can be threaded through long strip threading hole and be wound to the back of wiring board, and wiring is carried out in wiring cavity, without occupying front space of wiring board, save front wiring space, increase the space of single-layer terminal, so three columns of terminals can be provided on wiring board, improve space utilization. And line is hidden by wiring cavity, so that the front of wiring board is more simple, improve the appearance of product secondary wiring.

[0006] As optimization, the installation guide rail and wiring board are fixed by bolt connection. The optimization scheme of installation guide rail is disassembled and maintained.

[0007] As optimization, a plurality of reinforcing ribs are arranged in the two middle long strip threading holes along the length direction.

[0008] As optimization, two oval threading holes are arranged on the cloth plate, and the two oval threading holes are arranged above the mounting rail.

[0009] As optimization, the long strip threading hole and the oval threading hole are provided with a rubber protection ring.

[0010] As optimization, the top and bottom of the wiring plate are connected with the box through bolts, and the bolts are provided with shock-absorbing pads.

[0011] The wiring plate has the advantages that the single-layer terminal is arranged on the wiring plate, so that the problem of inconvenient maintenance and change of wiring of the double-layer terminal in the later period is avoided.

[0012] The wiring cavity is arranged between the wiring plate and the box, the inside and outside of the wiring plate are communicated through the threading hole, when the single-layer terminal is connected and wired, the line can pass through the long strip threading hole or the oval threading hole and be wound to the back of the wiring plate, the line is arranged in the wiring cavity, the front space of the wiring plate is not occupied, the front wiring space is saved, the arrangement space of the single-layer terminal is increased, so that three columns of terminals can be arranged on the wiring plate, the space utilization is improved. BRIEF DESCRIPTION OF DRAWINGS

[0013] Figure 1 is a front view of the internal structure of the box;

[0014] Figure 2 is a side view of the internal structure of the box;

[0015] Figure 3 is an enlarged view of A of Figure 1

[0016] Figure 4 is a front view of the wiring plate;

[0017] Figure 5 is a front view of the mounting rail;

[0018] Figure 6 is a schematic view of the three-dimensional structure of the mounting rail;

[0019] In the drawings:

[0020] ​1, box, 2, wiring board, 3, mounting rail, 31, bottom edge, 32, vertical edge, 33, top edge, 34, weight reduction hole, 35, bolt hole, 4, single-layer terminal, 5, long strip threading hole, 6, oval threading hole, 7, reinforcing rib, 8, wiring cavity, 9, shock pad, 10, rubber protection ring. DETAILED DESCRIPTION

[0021] To clearly illustrate the technical features of the present scheme, the present scheme will be described below through specific embodiments.

[0022] As shown in Figures 1-6 A hollow wiring structure for a circuit breaker mechanism box, comprising a box 1 and a wiring board 2 fixed in the box 1, a wiring cavity 8 is formed between the back of the wiring board 2 and the inner wall of the box 1.

[0023] Specifically, the top and bottom of the wiring board 2 are connected to the box 1 by bolts, and a shock pad 9 is provided on the bolt. In this embodiment, the top and bottom of the wiring board 2 are fixed to the box 1 by two bolts. The shock pad 9 is a rubber shock pad.

[0024] The front of the wiring board 2 is provided with three rows of mounting rails 3 in the transverse direction, the mounting rails 3 and the wiring board 2 are connected and fixed by bolts, and the mounting rails 3 are provided with single-layer terminals 4.

[0025] Specifically, the cross section of the mounting rail 3 includes a bottom edge 31, the ends of the bottom edge 31 are bent upward to form vertical edges 32, the vertical edges 32 are perpendicular to the bottom edge 31, the upper ends of the two vertical edges 32 are bent to extend away from each other to form a top edge 33, and the top edge 33 is parallel to the bottom edge 31. A plurality of weight reduction holes 34 are provided on the bottom edge 31 in the length direction, and a bolt hole 35 is provided on the bottom edge 31 for the bolt to pass through. During installation, the bottom of the single-layer terminal is clamped on the top edge of the mounting rail by a clamping slot. The mounting rail and the single-layer terminal described in this embodiment are both conventional technologies, and will not be described again.

[0026] Four rows of long strip threading holes 5 are provided on the wiring board 2 in the transverse direction, the four rows of long strip threading holes 5 are all in communication with the wiring cavity 8, and the four rows of long strip threading holes 5 and the three rows of mounting rails 3 are spaced apart, that is, one row of mounting rails 3 is provided between two adjacent rows of long strip threading holes 5.

[0027] Specifically, the long strip threading hole 5 is a rectangular hole, and the long strip threading hole 5 extends along the length direction of the mounting rail 3. A plurality of reinforcing ribs 7 are uniformly distributed in the length direction in the two middle rows of long strip threading holes 5. In this embodiment, three reinforcing ribs 7 are provided in the two middle rows of long strip threading holes 5, and the reinforcing ribs 7 are integrally formed with the wiring board 2. The three reinforcing ribs 7 divide one long strip threading hole 5 into four short threading holes.

[0028] The cloth plate 2 is also provided with two oval threading holes 6, which are located above the mounting rail 3. The long strip threading hole 5 and the oval threading hole 6 are both provided with a rubber protection ring 10 to prevent the cable from being abraded during threading.

[0029] When single-layer terminal wiring is performed, the line can pass through the long strip threading hole 5 and the oval threading hole 6 to be wound to the back of the wiring plate 2, and the wiring is performed in the wiring cavity 8, so that the front space of the wiring plate 2 is not occupied, and the front wiring space is saved.

[0030] Of course, the above description is not limited to the above examples, and the technical features not described in the utility model can be realized by or using the prior art, which will not be described herein. The above embodiments and drawings are only used to illustrate the technical scheme of the utility model and are not a limitation on the utility model. The utility model has been described in detail with reference to the preferred embodiments, and those skilled in the art should understand that the changes, modifications, additions or replacements made by those skilled in the art within the essential scope of the utility model do not deviate from the purpose of the utility model, and should also belong to the protection scope of the claims of the utility model.

Claims

1. A perforated wiring structure for a circuit breaker mechanism box, comprising a box body (1) and a wiring board (2) fixed inside the box body (1), characterized in that: A wiring cavity (8) is formed between the back of the wiring board (2) and the inner wall of the box (1). Three rows of mounting rails (3) are distributed horizontally on the front of the wiring board (2). Single-layer terminals (4) are installed on the mounting rails (3). Four rows of long wire holes (5) are distributed horizontally on the wiring board (2). The four rows of long wire holes are all connected to the wiring cavity (8), and the four rows of long wire holes (5) and the three rows of mounting rails (3) are distributed at intervals.

2. The perforated wiring structure for a circuit breaker mechanism box according to claim 1, characterized in that: The mounting rail (3) and the wiring board (2) are fixed together by bolts.

3. The perforated wiring structure for a circuit breaker mechanism box according to claim 1, characterized in that: Multiple reinforcing ribs (7) are evenly distributed along the length direction in the two rows of long wire holes (5) located in the middle.

4. The perforated wiring structure for a circuit breaker mechanism box according to claim 1, characterized in that: The wiring board (2) also has two elliptical wire holes (6) located above the mounting rail (3).

5. A perforated wiring structure for a circuit breaker mechanism box according to claim 4, characterized in that: Both the elongated threading hole (5) and the elliptical threading hole (6) are provided with rubber protective rings (10).

6. The perforated wiring structure for a circuit breaker mechanism box according to claim 1, characterized in that: The top and bottom of the wiring board (2) are connected to the housing (1) by bolts, and shock-absorbing pads (9) are fitted on the bolts.

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