CN209785729U - Power transformer of assembly arc extinguishing terminal - Google Patents

Abstract

The utility model relates to a power transformer technical field specifically is an assembly arc extinguishing terminal's power transformer, including the transformer body, a plurality of protective housings are installed at the top of transformer body, the inside from the top of protective housing is equipped with the arc extinguishing terminal in proper order, the T shape mount pad, transmission nut and arc control device, the mounting hole has been seted up at the protective housing top, the T shape mount pad is pegged graft in the mounting hole, arc extinguishing terminal input is inserted and is established in the T shape mount pad, transmission nut is connected with arc control device, arc control device includes the arc extinguishing case in proper order, mount pad and baffle, the arc extinguishing case is inserted and is established in the mount pad, the one end and the baffle fixed connection of arc extinguishing case are kept away from to. The utility model discloses simple structure falls into two solitary mechanisms with terminal and arc control device through setting up the protective housing to be convenient for dismantle the maintenance to it, fall the back when the fuse absolutely, only need dismantle the change with arc control device, have certain practicality.

Description

Power transformer of assembly arc extinguishing terminal

Technical Field

The utility model relates to a power transformer technical field specifically is a power transformer of assembly arc extinguishing terminal.

Background

A power transformer is a static electrical device, which is used to change an ac voltage (current) of a certain value into another voltage (current) of the same frequency or different values, and is often provided with a device for limiting an arc and helping the arc to extinguish, which is called an arc extinguishing device, and the power transformer and the arc extinguishing device are often connected through a terminal, but in practical use, the following disadvantages still exist:

Terminal and arc control device generally all are fixed connection, and the restriction is stronger, in case the inside fuse of arc control device is blown, just must dismantle the change with whole device, wastes time and energy, and inconvenient taking off and the maintenance moreover to work efficiency has been influenced.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide an assembly arc extinguishing terminal's power transformer 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 an assembly arc extinguishing terminal's power transformer, includes the transformer body, the top fixed mounting of transformer body has a plurality of protective housings, inside from the top of protective housing is equipped with arc extinguishing terminal, T shape mount pad, transmission nut and arc control device in proper order, the mounting hole of offering with T shape mount pad assorted is run through at the protective housing top, T shape mount pad is pegged graft in the mounting hole and connects fixedly rather than revolving, arc extinguishing terminal input insert establish in T shape mount pad and with transmission nut fixed connection, the transmission nut is connected with arc control device, arc control device includes arc extinguishing box, mount pad and baffle in proper order, the arc extinguishing box is inserted and is established in the mount pad, the one end and the baffle fixed connection of arc extinguishing box are kept away from to the mount pad.

Preferably, the protective housing sets gradually chamber, spacing platform A and the spacing platform B that hold that is cascaded distribution from inside to outside in proper order, the trapezoidal spout of multiunit has been seted up at the both ends that hold the chamber, the arc-extinguishing box is inserted and is established and is being held the intracavity and its lateral wall is equipped with the slider that imbeds in the trapezoidal spout.

Preferably, a plurality of arc-shaped elastic blocks are arranged on the side wall of the limiting table A, the mounting seat is inserted on the limiting table A, a positioning groove matched with the arc-shaped elastic blocks is formed in the mounting seat, the arc-shaped elastic blocks are inserted in the positioning groove, and the baffle is inserted on the limiting table B and fixed with the limiting table B through screws.

preferably, the bottom of the transmission nut is fixedly provided with a copper sheet, the top of the arc extinguishing box is provided with a limit groove matched with the copper sheet, and the copper sheet is inserted into the limit groove.

Preferably, a fuse is inserted into the arc extinguishing chamber, the end of the fuse is connected with the copper sheet, and arc extinguishing materials are filled in the inner cavity of the arc extinguishing chamber.

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

1. The sliding block is matched with the trapezoidal sliding groove for use, so that a limiting effect is achieved, and the arc extinguishing box can be attached to the accommodating cavity more tightly;

2. the utility model discloses novel structure, easy operation falls into two solitary mechanisms with terminal and arc control device through setting up the protective housing to be convenient for dismantle the maintenance to it, use through setting up mount pad cooperation arc-extinguishing box, fall the back when the fuse breaks, only need dismantle the change with arc control device, labour saving and time saving has good fixed effect moreover, has certain practicality.

Drawings

FIG. 1 is a front sectional view of the structure of the present invention;

fig. 2 is an exploded schematic view of the present invention;

fig. 3 is a schematic view of an arc extinguishing apparatus according to the present invention;

Fig. 4 is an installation schematic diagram of the arc extinguishing terminal and the T-shaped mounting seat of the present invention;

Fig. 5 is an enlarged view of the area a in fig. 1.

In the figure: the transformer comprises a transformer body 1, a protective shell 2, a mounting hole 21, an accommodating cavity 22, a trapezoid sliding groove 221, a limiting table A23, a limiting table B24, an arc extinguishing wiring terminal 3, an arc extinguishing device 4, an arc extinguishing box 41, a limiting groove 411, a sliding block 412, a mounting seat 42, a positioning groove 421, a baffle 43, a T-shaped mounting seat 5, a transmission nut 6, a copper sheet 7, a fuse 8 and an arc-shaped elastic block 9.

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. 1 to 5, the present invention provides a technical solution: the utility model provides an assembly arc extinguishing terminal's power transformer, including transformer body 1, transformer body 1's top fixed mounting has three protective housing 2, 2 inside from the top of protective housing are equipped with arc extinguishing terminal 3 in proper order, T shape mount pad 5, transmission nut 6 and arc control device 4, 2 tops of protective housing run through set up with T shape mount pad 5 assorted mounting hole 21, T shape mount pad 5 is pegged graft in mounting hole 21 and connects fixedly rather than revolving, arc extinguishing terminal 3 input is inserted and is established in T shape mount pad 5 and with transmission nut 6 fixed connection, transmission nut 6 is connected with arc control device 4, arc control device 4 includes arc extinguishing box 41 in proper order, mount pad 42 and baffle 43, arc extinguishing box 41 is inserted and is established in mount pad 42, the one end and the baffle 43 fixed connection of arc extinguishing box 41 are kept away from to mount pad 42, this fixed mode is the welding.

as shown in fig. 2, 3 and 5, the protective case 2 is sequentially provided with a containing cavity 22, a limiting table a23 and a limiting table B24 which are distributed in a stepped manner from inside to outside, two ends of the containing cavity 22 are provided with a plurality of sets of trapezoidal sliding grooves 221, the arc extinguishing box 41 is inserted into the containing cavity 22, and the side wall of the arc extinguishing box is provided with a sliding block 412 embedded into the trapezoidal sliding grooves 221. Through setting up slider 412 and trapezoidal spout 221 cooperation use, not only play a spacing effect, can also be inseparabler with the laminating of holding chamber 22 with arc-extinguishing chamber 41.

as shown in fig. 2, 3 and 5, four limiting tables a23 are arranged on the side wall, and an arc-shaped elastic block 9 is arranged in each mounting groove in an interference fit manner. The mounting seat 42 is inserted in the limiting table A23, the mounting seat 42 is provided with a positioning groove 421 matched with the arc-shaped elastic block 9, the arc-shaped elastic block 9 is inserted in the positioning groove 421, and the baffle 43 is inserted in the limiting table B24 and fixed with the limiting table B24 through screws. Through setting up arc bullet piece 9 and the cooperation of constant head tank 421 and using, can further fix arc control device 4 with protective housing 2, use through setting up spacing platform B24 of baffle 43 cooperation, can strengthen the device's gas tightness.

As shown in fig. 3 and 4, the copper sheet 7 is fixedly mounted at the bottom of the transmission nut 6, a limit groove 411 matched with the copper sheet 7 is formed at the top of the arc extinguishing box 41, and the copper sheet 7 is inserted into the limit groove 411. The limiting groove 411 is used for accommodating the copper sheet 7, so that the tightness of the connection between the copper sheet 7 and the fuse 8 is enhanced.

As shown in fig. 1, a fuse 8 is inserted into the arc-extinguishing chamber 41, and the fuse 8 is made of a novel capacity-retaining fast-melting material. The end part of the fuse 8 is connected with the copper sheet 7, and the inner cavity of the arc extinguishing box 41 is filled with arc extinguishing materials.

The working principle is as follows: when the product is used, the slider 412 is aligned with the trapezoidal sliding groove 221 to plug the whole arc extinguishing device 4 into the protective shell 2, in the process, the mounting seat 42 realizes primary fixing due to the clamping fit of the arc-shaped elastic block 9 and the positioning groove 421, and then the baffle 43 is clamped on the limiting table B24 and further fixed with the limiting table B24 through screws. Subsequently, the T-shaped mounting 5 together with the arc extinguishing post 3 is moved downward and screwed into the mounting hole 21. In the process, the copper sheet 7 is inserted in the limiting groove 411 and connected with the end part of the fuse 8, and the diameter of the upper end of the T-shaped mounting seat 5 is larger than that of the lower end, so that the air tightness of the device can be enhanced. When the arc control device needs to be replaced, only reverse operation is needed. Compared with the prior art, the device is simple in operation, falls into two solitary mechanisms with terminal 3 and arc control device 4 through setting up protective housing 2 to be convenient for dismantle the maintenance to it, use through setting up mount pad 42 cooperation arc-extinguishing chamber 41, after the fuse breaks, only need dismantle the change with arc control device, labour saving and time saving has good fixed effect moreover, has certain practicality.

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 (5)

1. The utility model provides an assembly arc extinguishing terminal's power transformer, includes transformer body (1), its characterized in that: a plurality of protective casings (2) are fixedly arranged at the top of the transformer body (1), an arc extinguishing wiring terminal (3), a T-shaped mounting seat (5), a transmission nut (6) and an arc extinguishing device (4) are sequentially arranged in the protective shell (2) from top to bottom, the top of the protective shell (2) is provided with a mounting hole (21) matched with the T-shaped mounting seat (5) in a penetrating way, the T-shaped mounting seat (5) is inserted into the mounting hole (21) and is screwed and fixed with the mounting hole, the input end of the arc extinguishing wiring terminal (3) is inserted in the T-shaped mounting seat (5) and is fixedly connected with the transmission nut (6), the transmission nut (6) is connected with the arc extinguishing device (4), the arc extinguishing device (4) sequentially comprises an arc extinguishing box (41), a mounting seat (42) and a baffle plate (43), the arc extinguishing box (41) is inserted into the mounting seat (42), and one end, far away from the arc extinguishing box (41), of the mounting seat (42) is fixedly connected with the baffle (43).

2. An arc extinguishing post-assembled power transformer according to claim 1, characterized in that: protective housing (2) by interior and set gradually outer chamber (22), spacing platform A (23) and spacing platform B (24) that hold that are cascaded distribution, the both ends that hold chamber (22) have seted up multiunit trapezoidal spout (221), arc extinguishing box (41) are inserted and are established and are being held in chamber (22) and its lateral wall is equipped with slider (412) in embedding trapezoidal spout (221).

3. An arc extinguishing post-assembled power transformer according to claim 2, characterized in that: be equipped with a plurality of arc bullet piece (9) on the lateral wall of spacing platform A (23), mount pad (42) are inserted and are established on spacing platform A (23), and offer on mount pad (42) with arc bullet piece (9) assorted constant head tank (421), arc bullet piece (9) are pegged graft in constant head tank (421), baffle (43) are inserted and are established on spacing platform B (24) and fixed rather than through the screw.

4. An arc extinguishing post-assembled power transformer according to claim 1, characterized in that: the bottom of the transfer nut (6) is fixedly provided with a copper sheet (7), the top of the arc extinguishing box (41) is provided with a limit groove (411) matched with the copper sheet (7), and the copper sheet (7) is inserted into the limit groove (411).

5. An arc extinguishing post-assembled power transformer according to claim 1, characterized in that: fuse (8) are inserted into the arc extinguishing box (41), the end part of the fuse (8) is connected with the copper sheet (7), and arc extinguishing materials are filled in the inner cavity of the arc extinguishing box (41).