CN2591732Y

CN2591732Y - Lead-out wire protection box of electric transformer

Info

Publication number: CN2591732Y
Application number: CN 02250739
Authority: CN
Inventors: 黄少萍
Original assignee: Individual
Current assignee: Individual
Priority date: 2002-12-30
Filing date: 2002-12-30
Publication date: 2003-12-10
Anticipated expiration: 2012-12-30

Abstract

The utility model relates to a lead-out wire protecting box of an electric transformer. A threading hole for at least two lead-out wires of a transformer and an external cable to pass through is arranged on a box body connected with the transformer. The utility model provides a lead-out wire protecting box of an electric transformer, which seals the connecting positions of at least two charged lead-out wires and the external cable.

Description

Power transformer lead-out wire protection box

[technical field]

The utility model belongs to power transformer lead-out wire protection box.Described power transformer comprises distribution transformer.

[background technology]

Existing Transformer Winding connects with external cable after having at least two lead-out wires to pass casing from sleeve pipe, cost is lower, but charged interface exposes, run into the initiation security incident as the people, enter in the live components attachment areas as toy or other electric conductors and will cause short circuit, cause accident of power supply.Though the lead-out wire sheath also can make banded cable electricity position not expose, a lead-out wire sheath can only close a lead-out wire, can not seal two above lead-out wires simultaneously.Be desirable to provide the transformer lead-out wire protection box of at least two charged lead-out wires of a kind of sealing and external cable point of attachment.

[summary of the invention]

The utility model will overcome above-mentioned shortcoming, and the power transformer lead-out wire protection box of at least two charged lead-out wires of a kind of sealing and external cable point of attachment is provided.

The technical scheme that adopts is: a kind of power transformer lead-out wire protection box, comprise box body and lid, with have 1 through wires hole that passes at least 2 transformer lead-out wires and external cable at least on the box body that transformer connects, and the height of protection box is less than the height of this transformer.

After adopting such structure, provide the power transformer lead-out wire protection box of at least two charged lead-out wires of a kind of sealing and external cable point of attachment.

[description of drawings]

Fig. 1 is the structural representation of the utility model power transformer lead-out wire protection box embodiment 1.

Fig. 2 is the A-A cutaway view of Fig. 1.

Fig. 3 is the B-B cutaway view of Fig. 1.

Fig. 4 is the B-B cutaway view of execution mode 3 Fig. 1.

Fig. 5 is the A-A cutaway view of execution mode 4 Fig. 1.

[execution mode]

Execution mode 1: a kind of power transformer lead-out wire protection box, comprise box body and lid, as Fig. 1, Fig. 2, have 1 through wires hole that passes at least 2 transformer lead-out wires and external cable on the box body that connects with transformer (1) at least, and the height of protection box is less than the height of this transformer.

After adopting such structure, Fig. 2 mesopore (2) passes at least two transformer lead-out wires, and hole (9) pass external cable, when all expand to when being interconnected hole (2) and hole (9), two holes become a hole, and this hole is passed transformer lead-out wire and external cable simultaneously.

Execution mode 2: as Fig. 3, the installation seam (7) that has at least a through wires hole (9) to have to disconnect between at least 1 panel edges from bore edges to this place, hole.Other are with execution mode 1.

After adopting such structure, when this hole had two installation seams, the plate at this place, hole had become discerptible two boards.The through wires hole of being opened on the seam of adjacent two boards passes and snaps in external cable when a plate is not in place therein at an easy rate, another piece plate is installed subsequently easily, fixing position of wearing cable.

Execution mode 3: as Fig. 4, at least one through wires hole (9) is that the edge line by at least two locating parts that can take apart surrounds jointly.Other are with execution mode 1.

After adopting such structure, the edge line of the through wires hole (9) of Fig. 4 is to be surrounded jointly by the edge line of protection box body and the edge line of protection box lid.

Execution mode 4: as Fig. 2, Fig. 5, the area of transformer lead-out wire through wires hole is less than 50% of the maximum cross-section on the protection box (C-C cross section) area; And the distance between the transformer installation surface (6) is the area that the point on the protection box of 5mm is surrounded, less than 60% of the maximum cross-section on the protection box (C-C cross section) area.Other are with execution mode 1,2,3.

After adopting such structure, distance between the area of limiting transformer lead-out wire through wires hole and restriction protection box and the transformer installation surface is the area that the point of 5mm is surrounded, reduced by through wires hole and imported transformer heat in the protection box into, reduced the temperature in the protection box.Simultaneously, increased the radiating effect of transformer.

Execution mode 5: as Fig. 3, Fig. 4, lid (5) connects with hinge (3) with box body (1).Other are with execution mode 1, or 2, or 3.

Execution mode 6: as Fig. 2, Fig. 5 has louvre (8) on the box body, and louvre has at least a direction to be of a size of 20mm.

Other are with execution mode 1, or 2, or 3.

After adopting such structure, stopped that diameter enters protection box greater than the 20mm spherical object

Execution mode 7: as Fig. 1, observation window (4) is arranged on the lid, be embedded with transparent panel on the observation window.Other are with execution mode 1, or 2, or 3.

Claims

1, a kind of power transformer lead-out wire protection box, comprise box body, and lid, it is characterized in that: have 1 through wires hole that passes at least 2 transformer lead-out wires and external cable on the box body that connects with transformer (1) at least, and the height of protection box is less than the height of this transformer.

2, power transformer lead-out wire protection box according to claim 1 is characterized in that: the installation seam (7) that has at least a through wires hole (9) to have to disconnect between at least 1 panel edges from bore edges to this place, hole.

3, power transformer lead-out wire protection box according to claim 1 is characterized in that: at least one through wires hole (9) is that the edge line by at least two locating parts that can take apart surrounds jointly.

4, according to claim 1 or 2 or 3 described power transformer lead-out wire protection boxs, it is characterized in that: the area of transformer lead-out wire through wires hole is less than 50% of the maximum cross-section C-C area of section on the protection box; And the distance between the transformer installation surface (6) is the area that the point on the protection box of 5mm is surrounded, less than 60% of the maximum cross-section C-C area of section on the protection box.

5, according to claim 1, or 2, or 3 described power transformer lead-out wire protection boxs, it is characterized in that: lid (5) connects with hinge (3) with box body (1).

6, according to claim 1, or 2, or 3 described power transformer lead-out wire protection boxs, it is characterized in that: louvre (8) is arranged on the box body, and louvre has the size of a direction at least less than 20mm.

7, according to claim 1, or 2, or 3 described power transformer lead-out wire protection boxs, it is characterized in that: observation window (4) is arranged on the lid, be embedded with transparent panel on the observation window.