CN213877784U

CN213877784U - Epoxy pouring type high-voltage phase-shifting variable frequency transformer

Info

Publication number: CN213877784U
Application number: CN202120090019.5U
Authority: CN
Inventors: 陈伟星; 杨观明; 钟旭红; 范海涛; 张子豪; 李来兵
Original assignee: Zhejiang Kere Electric Co ltd
Current assignee: Zhejiang Kere Electric Co ltd
Priority date: 2021-01-13
Filing date: 2021-01-13
Publication date: 2021-08-03
Anticipated expiration: 2031-01-13

Abstract

The utility model discloses an epoxy pouring type high-voltage phase-shifting variable frequency transformer, which comprises a transformer body, wherein the transformer body is provided with a low-voltage side, and a plurality of wire ends electrically connected with the low-voltage side are arranged on the low-voltage side; the low pressure side sets up spacing subassembly, spacing subassembly includes two connecting rods that can dismantle the connection with transformer body, two connecting rods are parallel to each other and are upper and lower structural distribution, vertically set up at least a set of double-layered line group between two connecting rods, double-layered line group is including the connecting plate of vertical setting, the connecting plate both ends can be dismantled with two connecting rods respectively and be connected, the other clamp plate that sets up at least two rather than being parallel in side of connecting plate, the clamp plate both ends can be dismantled with the connecting plate and be connected, still vertically be provided with three fixed plates between the connecting rod, the both ends and the connecting rod of fixed plate can be dismantled and be connected, be provided with the binding post of being connected with the end of a thread electricity on the fixed plate. The line head led out from the low-voltage side is fixed and limited through the structure, so that the line head cannot deviate after epoxy resin is poured subsequently.

Description

Epoxy pouring type high-voltage phase-shifting variable frequency transformer

Technical Field

The utility model relates to a high pressure phase-shifting variable frequency transformer, especially an epoxy pouring type high pressure phase-shifting variable frequency transformer.

Background

Conventional phase-shifting transformers are primarily non-encapsulated dry transformers. The non-encapsulated dry-type transformer can generate a certain amount of waste gas pollution in the manufacturing process, and the manufacturing process for low partial discharge requirements is complex; the environment requirement is strict in the use process, and the wire cake or the air flue is easy to dissipate heat due to too much dust. The epoxy cast type phase-shifting transformer can well reduce the pollution emission to the air environment in the manufacturing process; the low partial discharge requirement required by customers can be better ensured, and the cast coil is a whole body, so that the cast coil can well resist the external severe environment. However, during the manufacturing process, a plurality of wire ends on the low-voltage side need to be led out from the front surface of the coil, and the wire ends are often deviated from the positions after epoxy resin is poured, so that the subsequent wiring assembly is difficult.

SUMMERY OF THE UTILITY MODEL

In view of the above, the utility model aims to provide an epoxy pouring type high pressure phase-shifting variable frequency transformer can effectively solve the coil and seal the easy skew problem that produces of low pressure side line head in the pouring process.

In order to achieve the above purpose, the technical scheme of the utility model is that:

an epoxy pouring type high-voltage phase-shifting variable frequency transformer comprises a transformer body, wherein the transformer body is provided with a low-voltage side, and a plurality of wire ends electrically connected with the low-voltage side are arranged on the low-voltage side; the low pressure side sets up spacing subassembly, spacing subassembly include two with the connecting rod of connection can be dismantled to the transformer body, two connecting rods are parallel to each other and are upper and lower structural distribution, vertically set up at least a set of double-layered line group between two connecting rods, double-layered line group is including the connecting plate of vertical setting, and the connecting plate both ends can be dismantled with two connecting rods respectively and be connected, and the other at least two clamp plates rather than being parallel that set up in side of connecting plate, the clamp plate both ends with the connection can be dismantled to the connecting plate, still vertically be provided with three fixed plates between the connecting rod, the both ends of fixed plate with the connection can be dismantled to the connecting rod, be provided with on the fixed plate with binding post that the end of a thread electricity is connected.

Further, gap pads are arranged at two ends of the pressing plate.

Further, the clearance pad is a silica gel pad.

Furthermore, the three fixing plates are arranged in a gradient and staggered mode.

The working principle is as follows: when epoxy resin is needed to be poured, a worker loads the limiting assembly on the low-voltage side of the transformer body, and then the wire ends penetrate through the wire clamping plate group and are fixed in the wiring terminals in a one-to-one correspondence mode. With the above structure, the thread end is effectively preset without position deviation due to stress during the epoxy resin oxidation process. In the wire arranging process, due to the existence of the wire clamping plate group, the orderly arrangement of the wire ends is ensured, and the wire arranging inspection of subsequent maintenance personnel is facilitated.

Drawings

Fig. 1 is a schematic structural diagram of the present invention;

FIG. 2 is a schematic structural view of a spacing assembly;

FIG. 3 is a schematic view of a structure of a cleat group;

reference numerals: 100. the transformer comprises a transformer body 110, a low-voltage side 200, a limiting assembly 210, a connecting rod 220, a wire clamping plate group 221, a connecting plate 222, a pressing plate 230, a fixing plate 240, a wiring terminal 250 and a gap pad.

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.

Fig. 1 to 3 show an epoxy cast high-voltage phase-shifting frequency-converting transformer, which includes a transformer body 100 having a low-voltage side 110, on which a plurality of terminals (not shown) electrically connected to the low-voltage side are led out. Meanwhile, a limiting assembly 200 is arranged on the low-pressure side, so that the position of the wire head is limited in the process of pouring epoxy resin. Specifically, the limiting assembly comprises two connecting rods 210 detachably connected with the transformer body, and the two connecting rods are parallel to each other and distributed in an upper structure and a lower structure. At least one wire clamping plate group 220 is longitudinally arranged between the two connecting rods. The wire clamping plate group comprises a connecting plate 221 which is longitudinally arranged, two ends of the connecting plate are respectively detachably connected with the two connecting rods, at least two pressing plates 222 which are parallel to the connecting plate are arranged beside the connecting plate, and two ends of each pressing plate are detachably connected with the connecting plate. In the wiring process, the wire clamping plate group consisting of the connecting plate and the pressing plate penetrates through and is clamped by the wire clamping plate group. Thereby ensuring the well-known order of the thread ends in the thread clamping plate group. In addition, three fixing plates 230 are longitudinally arranged between the two connecting rods. Specifically, the three fixing plates are detachably connected with the connecting rod. And terminals 240 for one-to-one corresponding electrical connection terminals are arranged in the longitudinal direction on the fixing plate.

As a further improvement of the above embodiment, in order to facilitate threading of the thread end during installation, the two ends of the pressure plate are provided with gap pads 250. Through the arrangement of the gap pads, gaps capable of enabling the single thread ends to penetrate through exist in the thread clamping plate group.

As a further improvement of the above embodiment, the gap pad is a silicone pad so as to be able to better accommodate the thread ends with different thread diameters. The known silica gel pad can change the thickness under pressure, so that the adjustment of the size of the gap in the wire clamping plate group is realized.

As a further improvement of the above embodiment, three fixing plates are arranged on the connecting rod in a staggered manner in a step shape for facilitating the connection between the subsequent wire ends and the connecting terminal and distinguishing the wire ends with different phase limits.

Claims

1. The utility model provides an epoxy pouring type high pressure phase-shifting variable frequency transformer which characterized in that: the transformer comprises a transformer body, wherein the transformer body is provided with a low-voltage side, and a plurality of wire ends electrically connected with the low-voltage side are arranged on the low-voltage side; the low pressure side sets up spacing subassembly, spacing subassembly include two with the connecting rod of connection can be dismantled to the transformer body, two connecting rods are parallel to each other and are upper and lower structural distribution, vertically set up at least a set of double-layered line group between two connecting rods, double-layered line group is including the connecting plate of vertical setting, and the connecting plate both ends can be dismantled with two connecting rods respectively and be connected, and the other at least two clamp plates rather than being parallel that set up in side of connecting plate, the clamp plate both ends with the connection can be dismantled to the connecting plate, still vertically be provided with three fixed plates between the connecting rod, the both ends of fixed plate with the connection can be dismantled to the connecting rod, be provided with on the fixed plate with binding post that the end of a thread electricity is connected.

2. The epoxy cast high-voltage phase-shifting frequency-converting transformer of claim 1, wherein: and gap pads are arranged at two ends of the pressing plate.

3. The epoxy cast high-voltage phase-shifting frequency-converting transformer of claim 2, wherein: the gap pad is a silica gel pad.

4. The epoxy cast high-voltage phase-shifting frequency-converting transformer of claim 3, wherein: the three fixing plates are arranged in a gradient and staggered mode.