CN214505252U

CN214505252U - Terminal board die for pouring dry type transformer coil

Info

Publication number: CN214505252U
Application number: CN202121019768.5U
Authority: CN
Inventors: 张乾荣; 魏忠正
Original assignee: Hainan Jinpan Intelligent Technology Co ltd
Current assignee: Hainan Jinpan Intelligent Technology Co ltd
Priority date: 2021-05-13
Filing date: 2021-05-13
Publication date: 2021-10-26
Anticipated expiration: 2031-05-13

Abstract

The utility model discloses a terminal block mould for pouring dry-type transformer coil, including lower bolster, loading board and terminal socket, the lower bolster has down the shaping groove, and the loading board sets firmly in lower shaping inslot, and the loading board can be dismantled and be fixed in to the terminal socket. When the preparation coil, after the mould combination, at first pour into a mould resin in the shaping inslot under vacuum condition, carry out low temperature gel solidification to epoxy, pull down the terminal socket from the loading board after that, the terminal socket separates the drawing of patterns, releases the taut stress that the line terminal received, carries out high temperature curing to epoxy again, avoids epoxy and leading-out terminal to cause epoxy to appear the crackle because of asynchronous shrink, reduces epoxy and takes place the risk of warping, and then promotes the quality of coil.

Description

Terminal board die for pouring dry type transformer coil

Technical Field

The utility model relates to a dry-type transformer processing technology field, in particular to a terminal plate mould for pouring dry-type transformer coil.

Background

The dry-type transformer mainly comprises an epoxy resin pouring type transformer and an epoxy resin dipping type transformer, the epoxy resin pouring type transformer has the advantages of strong short-circuit resistance, good insulation property, good severe environment resistance and the like, the performance of the epoxy resin pouring type transformer is superior to that of the epoxy resin dipping type transformer, and the epoxy resin pouring type transformer is widely applied to occasions such as urban high-rise buildings, power stations and the like.

When the dry-type transformer operates, most faults occur on the coil of the dry-type transformer, so the coil quality of the dry-type transformer directly influences the performance of the dry-type transformer. The manufacturing of the dry type transformer coil needs a terminal board die, the difference of the expansion coefficients of the epoxy resin and the outlet terminal is large in the high-temperature curing stage, and the epoxy resin and the outlet terminal are not synchronous in shrinkage due to the limitation of the existing terminal board die structure, so that the epoxy resin cracks, and the pouring quality of the coil is influenced.

SUMMERY OF THE UTILITY MODEL

In view of this, the utility model aims at providing a terminal block mould for pouring into a mould dry-type transformer coil, terminal socket can dismantle be fixed in on the loading board, can pull down terminal socket at the low temperature gel solidification stage earlier from the loading board, avoids epoxy and leading-out terminal to appear the crackle because of asynchronous shrink at high temperature solidification, is favorable to promoting the quality of coil.

The utility model provides a terminal block mould for pouring dry-type transformer coil, include:

a lower template with a lower molding groove;

the bearing plate is fixedly arranged in the lower forming groove;

the terminal socket is detachably fixed on the bearing plate.

Preferably, the carrier plate is welded to the lower forming trough.

Preferably, the terminal socket is detachably fixed to the carrier plate by means of a fastening bolt.

Preferably, the terminal socket includes a connecting flange and a molded post integrally connected to the connecting flange.

Preferably, two terminal socket heads are fixedly arranged in the lower forming groove and are distributed along the line.

Preferably, the device further comprises an upper template with an upper forming groove, and the upper forming groove and the lower forming groove are combined to form a closed forming cavity.

For background art, the utility model provides a terminal block mould for pouring into a mould dry-type transformer coil, including lower bolster, loading board and terminal socket, the lower bolster has down the shaping groove, and the loading board sets firmly in lower shaping inslot, and the terminal socket can be dismantled and be fixed in the loading board.

When the preparation coil, after the mould combination, at first pour into a mould resin in the shaping inslot under vacuum condition, carry out low temperature gel solidification to epoxy, pull down the terminal socket from the loading board after that, the terminal socket separates the drawing of patterns, releases the taut stress that the line terminal received, carries out high temperature curing to epoxy again, avoids epoxy and leading-out terminal to cause epoxy to appear the crackle because of asynchronous shrink, reduces epoxy and takes place the risk of warping, and then promotes the quality of coil.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required to be used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the provided drawings without creative efforts.

Fig. 1 is an assembly view of a lower mold plate, a bearing plate and a terminal socket of a terminal plate mold for casting a dry-type transformer coil according to an embodiment of the present invention;

FIG. 2 is an assembled view of the carrier plate and the terminal socket of FIG. 1;

fig. 3 is a top view of a terminal plate mold for casting a dry-type transformer coil according to an embodiment of the present invention;

FIG. 4 is a front view of FIG. 1;

fig. 5 is a block diagram of the terminal socket and the upper mold plate of fig. 3.

The reference numbers are as follows:

the device comprises a lower template 1, a bearing plate 2, a terminal socket 3, a fastening bolt 4 and an upper template 5;

a lower forming groove 11.

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.

In order to make the technical field of the present invention better understand, the present invention will be described in detail with reference to the accompanying drawings and specific embodiments.

Referring to fig. 1 to 5, fig. 1 is an assembly diagram of a lower mold plate, a bearing plate and a terminal socket of a terminal plate mold for casting a dry-type transformer coil according to an embodiment of the present invention; FIG. 2 is an assembled view of the carrier plate and the terminal socket of FIG. 1; fig. 3 is a top view of a terminal plate mold for casting a dry-type transformer coil according to an embodiment of the present invention; FIG. 4 is a front view of FIG. 1; fig. 5 is a block diagram of the terminal socket and the upper mold plate of fig. 3.

The embodiment of the utility model discloses terminal block mould for pouring dry-type transformer coil, including lower bolster 1, loading board 2 and terminal socket 3. Wherein, the lower template 1 is provided with a lower molding groove 11. The lower template 1 is made of channel steel, and the lower forming groove 11 is specifically an open rectangular groove. The bearing plate 2 is fixedly arranged in the lower forming groove 11, and specifically, the bearing plate 2 is welded on the lower forming groove 11. The width of the lower forming groove 11 is narrow, and the bearing plate 2 is a waist-shaped plate. Of course, the structure of the carrier plate 2 is not limited thereto.

The terminal socket 3 is detachably fixed to the carrier plate 2, in particular the terminal socket 3 is detachably fixed to the carrier plate 2 by means of fastening bolts 4. In this embodiment, the terminal socket 3 comprises a connecting flange and a forming post integrally connected with the connecting flange, the connecting flange is matched with the bearing plate 2, and the connecting flange is also a waist-shaped plate. The molding column is cylindrical. Two terminal steamed corn breads 3 are set firmly in lower shaping groove 11, and two terminal steamed corn breads 3 are along the linear distribution, are favorable to promoting coil quality.

The utility model discloses still include cope match-plate pattern 5, cope match-plate pattern 5 has last shaping groove, after cope match-

plate pattern

5 and 1 lock of lower bolster, goes up shaping groove and 11 combinations formation confined molding die cavities in lower shaping groove, provides the space for pouring into liquid epoxy. The structure of the upper template 5 can be referred to the prior art.

During the preparation coil, combine cope match-plate pattern 5 and lower bolster 1 earlier, again with resin casting in the shaping inslot under the vacuum condition, then carry out low temperature gel solidification to epoxy, pull down terminal socket 3 from loading board 2 after that, terminal socket 3 separates the drawing of patterns, release strain stress, carry out high temperature solidification to epoxy again, avoid epoxy and terminal outgoing lines to lead to the fact epoxy to appear the crackle because of asynchronous shrink, reduce the risk that epoxy takes place to warp, and then promote the quality of coil.

The previous description of the disclosed embodiments is provided to enable any person skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the invention. Thus, the present invention is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A terminal plate mold for casting a dry-type transformer coil, comprising:

a lower template (1) with a lower forming groove (11);

the bearing plate (2) is fixedly arranged in the lower forming groove (11);

and the terminal socket head (3) is detachably fixed on the bearing plate (2).

2. Terminal plate mould for casting dry-type transformer coils according to claim 1, characterized in that the carrier plate (2) is welded to the lower forming groove (11).

3. Terminal plate mould for casting dry-type transformer coils according to claim 1, characterized in that the terminal socket (3) is detachably fixed to the carrier plate (2) by means of fastening bolts (4).

4. A terminal plate mould for casting dry-type transformer coils according to any of claims 1 to 3, characterized in that the terminal socket (3) comprises a connection flange and a shaped post integrally connected with the connection flange.

5. The terminal plate mold for casting a dry-type transformer coil as claimed in any one of claims 1 to 3, wherein two terminal sockets (3) are fixed in the lower molding groove (11), and the two terminal sockets (3) are distributed linearly.

6. The terminal plate mold for casting a dry-type transformer coil according to any one of claims 1 to 3, further comprising an upper mold plate (5) having an upper molding groove, the upper molding groove and the lower molding groove (11) forming a closed molding cavity in combination.