CN212516870U - Lead-out wiring structure of transformer and reactor - Google Patents

Abstract

The utility model belongs to the technical field of transformer, reactor technique and specifically relates to a transformer, reactor draw forth wiring structure, including bolt, insulation board and binding post, the bolt runs through the spiro union on the insulation board, binding post installs on the bolt that is in insulation board with one side. The utility model does not have the requirement of conductivity on the bolt, and the cost of the bolt can be reduced by using the low-cost iron bolt to replace the conductive copper bolt; a combination mode is specified, a client wiring instruction is noted, and direct contact type electrification is used for increasing reliability and reducing loss; aiming at the condition of high rated voltage, the distance setting of adjacent connecting terminals is changed, so that the high-voltage terminal table is also suitable for high rated voltage input and output, and the defects of high cost and long period of the high-voltage terminal table are overcome.

Description

Lead-out wiring structure of transformer and reactor

Technical Field

The utility model relates to a transformer, reactor technical field specifically are a transformer, reactor draw forth wiring structure.

Background

In the industry of medium and small power transformers and reactors, because the rated current of work is not very large, most of the transformers and reactors are designed into a wiring terminal block or copper bolt conduction mode for customers to use. And a small part of the bolts only use iron bolts for reducing the cost, but the combination mode of the bolts is not subjected to more reliability analysis.

The prior art is shown in fig. 1-2, from left to right: the bolt 1 (or the metal copper bolt 1 ') is arranged on the insulating plate 3, then the bolt 1 (or the metal copper bolt 1') is sleeved with two wiring terminals 6, the wiring terminals 6 are fixed through nuts 5 (or nonstandard nuts 5 '), the two wiring terminals 6 are respectively positioned at two sides of the insulating plate 3, a flat pad 2 (or a 2' nonstandard flat pad) is sleeved between the insulating plate 3 and the bolt 1 (or the metal copper bolt 1 '), an elastic pad 4 (or a nonstandard elastic pad 4') is sleeved between the insulating plate 3 and the left nut 5 (or the nonstandard nut 5 '), and a standard flat pad 2 (or a nonstandard flat pad 2') and an elastic pad 4 (or a nonstandard elastic pad 4 ') are sleeved between the right nut 5 (or the nonstandard nut 5') and the adjacent wiring terminal 6.

The first scheme in the prior art is as follows: the wiring modes such as the terminal block, the metal copper bolt 1', the standard flat pad 2, the elastic pad 4, the standard nut 5 and the like are adopted, and although the wiring modes are reliable, the cost is high.

The second scheme in the prior art: some factories adopt low-cost iron bolt conduction, a non-standard flat pad 2', a non-standard elastic pad 4 and a non-standard nut 5, but the connection modes of the bolt 1 and the connecting terminal 6 on the bolt are different, and the selection type is improper, for example, the bolt is too thin and is a non-standard part, or the combination of iron bolts is unreasonable, and the conduction through the iron bolt can generate heat seriously. Finally, due to long-term use, the risk of wire connection burnout is caused by factors such as heating and poor contact.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a transformer, reactor draw forth wiring structure to solve the problem that proposes among the above-mentioned background art.

In order to achieve the above object, the utility model provides a following technical scheme:

the utility model provides a transformer, reactor draw forth wiring structure, includes bolt, insulation board and binding post, the bolt runs through the spiro union on the insulation board, binding post installs on being in the bolt of insulation board with one side.

Preferably, the connecting terminals are two groups and are fixedly clamped through two groups of nuts on the bolt.

Preferably, the bolt between each group of nuts and the corresponding connecting terminal is sleeved with an elastic pad.

Preferably, a flat pad is sleeved on the bolt between each group of the wiring terminals and the elastic pad.

Preferably, the bolts on both sides of the insulating plate are sleeved with flat pads, and the bolts between the standard nuts close to the insulating plate side and the flat pads tightly attached to the insulating plate are also sleeved with elastic pads.

Preferably, the flat pad is a standard flat pad, the elastic pad is a standard elastic pad, and the nut is a standard nut and can adopt an iron bolt or a conductive copper bolt.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model changes the original way that two connecting terminals conduct electricity indirectly through the bolt into the way that two connecting terminals conduct electricity in a direct contact way; and replacing the conductive copper bolt with a low-price iron bolt.

The utility model does not have the requirement of conductivity on the bolt, and the cost of the bolt can be reduced by using the low-cost iron bolt to replace the conductive copper bolt; a combination mode is specified, a client wiring instruction is noted, and direct contact type electrification is used for increasing reliability and reducing loss; aiming at the condition of high rated voltage, the distance setting of adjacent connecting terminals is changed, so that the high-voltage terminal table is also suitable for high rated voltage input and output, and the defects of high cost and long period of the high-voltage terminal table are overcome.

The utility model discloses make the improvement to current mode of connection, improve customer's wiring when reduce cost and use the reliability. The position of the wiring terminal is controlled according to the requirement of electrical insulation, the use of medium and high voltage can be met, and the application range is wider than that of most schemes.

Drawings

FIG. 1 is a schematic diagram of a lead-out wiring structure of a conventional transformer and reactor;

FIG. 2 is a vertical schematic diagram of a lead-out wiring structure of a conventional transformer and reactor;

FIG. 3 is a schematic structural view of the present invention;

fig. 4 is a left side view of fig. 3 according to the present invention;

fig. 5 is a schematic top view of fig. 3 in accordance with the present invention;

fig. 6 is a first vertical schematic view of the present invention;

FIG. 7 is a second vertical view of the present invention;

in the figure: 1 bolt, 1 'metal copper bolt, 2 standard flat pads, 2' non-standard flat pads, 3 insulating plates, 4 standard elastic pads, 4 'non-standard elastic pads, 5 standard nuts, 5' non-standard nuts and 6 wiring terminals.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 3 to 7, the present invention provides a technical solution:

the utility model provides a transformer, reactor draw forth wiring structure, includes bolt 1, insulation board 3 and binding post 6, bolt 1 runs through the spiro union on insulation board 3, binding post 6 installs on the bolt 1 that is in insulation board 3 with one side.

Specifically, the connecting terminals 6 are two groups and are fixedly clamped through two groups of nuts 5 on the bolt 1.

Specifically, the bolt 1 between each group of nuts 5 and the corresponding connecting terminal 6 is sleeved with an elastic pad 4.

Specifically, a flat pad 2 is sleeved on the bolt 1 between each group of the connecting terminals 6 and the elastic pad 4.

Specifically, the bolts 1 on both sides of the insulating plate 3 are sleeved with flat pads 2, and the bolts 1 between the flat pads 2, which are close to the insulating plate 3 and are closely attached to the standard nuts 5 on the side of the insulating plate 3, are also sleeved with elastic pads 4.

Specifically, the flat pad 2 is a standard flat pad, the elastic pad 4 is a standard elastic pad, and the nut 5 is a standard nut and can be made of an iron bolt or a conductive copper bolt.

The utility model discloses, as shown in fig. 3 or 6, the part is from a left side to the right side: bolt 1 runs through and installs on insulation board 3, and bolt 1 installs two flat pads 2 with insulation board 3, then a suit bullet pad 4, then locks bolt 1 and insulation board 3 through nut 5 and fixes, then sheathes a flat pad 2 again, overlaps two binding post 6 simultaneously on bolt 1, then sheathes a flat pad 2 and a bullet pad 4 in proper order again, locks two binding post 6 through another nut 5 and fixes at last. One terminal head of the two wiring terminals 6 is used as a customer wiring, and the other terminal head is used as a product outgoing line. The flat pad 2, the elastic pad 4 and the nut 5 are standard components, wherein the standard flat pad can adopt GB/T97.1-2002, the standard elastic pad can adopt GB/T93-1987, and the standard nut can adopt GB/T1229-.

The utility model changes the original mode that two connecting terminals 6 are indirectly conducted through bolts into the direct contact type conduction of the two connecting terminals 6; and replacing the conductive copper bolt with a low-price iron bolt.

The utility model does not require the bolt 1 to have conductivity, and uses the low-cost iron bolt to replace the conductive copper bolt, thus reducing the bolt cost; a combination mode is specified, a client wiring instruction is noted, and direct contact type electrification is used for increasing reliability and reducing loss; aiming at the condition of high rated voltage, the distance setting of adjacent connecting terminals is changed, so that the high-voltage terminal table is also suitable for high rated voltage input and output, and the defects of high cost and long period of the high-voltage terminal table are overcome.

Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.

Claims (6)

1. The utility model provides a transformer, reactor draw forth wiring structure, includes bolt (1), insulation board (3) and binding post (6), bolt (1) runs through the spiro union on insulation board (3), its characterized in that: the wiring terminal (6) is arranged on the bolt (1) on the same side of the insulating plate (3).

2. The lead-out wiring structure of a transformer, a reactor according to claim 1, characterized in that: the connecting terminals (6) are arranged in two groups and are fixedly clamped through two groups of nuts (5) on the bolts (1).

3. The lead-out wiring structure of a transformer, a reactor, or the like according to claim 2, wherein: the bolt (1) between each group of nuts (5) and the corresponding connecting terminal (6) is sleeved with an elastic pad (4).

4. The lead-out wiring structure of a transformer, a reactor, or the like according to claim 3, wherein: the bolt (1) between each group of wiring terminals (6) and the elastic pad (4) is sleeved with a flat pad (2).

5. The lead-out wiring structure of the transformer and the reactor as claimed in any one of claims 2 to 4, wherein: the insulating plate is characterized in that flat pads (2) are sleeved on the bolts (1) on the two sides of the insulating plate (3), and elastic pads (4) are sleeved on the bolts (1) between the standard nuts (5) close to the insulating plate (3) and the flat pads (2) tightly attached to the insulating plate (3).

6. The lead-out wiring structure of a transformer, a reactor, or the like according to claim 5, wherein: the flat pad (2) is a standard flat pad, the elastic pad (4) is a standard elastic pad, and the nut (5) is a standard nut and can be made of iron bolts or conductive copper bolts.

Images