CN219610192U

CN219610192U - Three-phase voltage transformer

Info

Publication number: CN219610192U
Application number: CN202320767047.5U
Authority: CN
Inventors: 王力
Original assignee: Suzhou Hechang Electric Power Technology Co ltd
Current assignee: Suzhou Hechang Electric Power Technology Co ltd
Priority date: 2023-04-10
Filing date: 2023-04-10
Publication date: 2023-08-29
Anticipated expiration: 2033-04-10

Abstract

The utility model discloses a three-phase voltage transformer, which comprises a bottom plate, wherein a base is fixedly arranged on the bottom plate, a wiring board is arranged on one side of the base, a transformer shell is fixedly arranged above the base, a plurality of heat dissipation and sound absorption blocks are uniformly and fixedly arranged on four sides of the transformer shell at intervals respectively, a wiring seat is fixedly arranged at the upper end of the transformer shell, and wiring posts are fixedly arranged on the wiring seat. The radiating sound-absorbing block comprises fins fixedly connected with the transformer shell, the fins are in an inverted triangle cone shape, a layer of heat conducting layer is attached to the outer side end of each fin, and a plurality of sound-absorbing holes are uniformly formed in the heat conducting layer at intervals. The heat conduction layer is made of heat conduction silica gel, and the fins are made of brass. One end of the narrow opening of the fin is fixedly connected with the transformer shell. Mounting holes are formed in four corners of the bottom plate. The utility model has strong practicability.

Description

Three-phase voltage transformer

Technical Field

The utility model relates to the technical field of transformers, in particular to a three-phase voltage transformer.

Background

The voltage transformer is called PT for short, is similar to a transformer, and is an instrument for converting voltage. The basic structure of the voltage transformer is very similar to that of a transformer, and the voltage transformer also comprises two windings, namely a primary winding and a secondary winding. Both windings are mounted on or wound around the core. Insulation is arranged between the two windings and between the windings and the iron core, so that electrical isolation is arranged between the two windings and between the windings and the iron core. When the voltage transformer is in operation, the primary winding N1 is connected in parallel with the circuit, and the secondary winding N2 is connected in parallel with the instrument or the relay. Therefore, when the voltage on the high-voltage line is measured, the primary voltage is high, but the secondary voltage is low, so that the safety of operators and meters can be ensured.

For example, in the application of application number 201721567337.6, the heat dissipation fins arranged at the outer side end of the transformer are all straight plates, and the field power supply of the transformer is excessively high in voltage measurement, so that the iron core is excessively excited, and the phenomena of loud noise and excessively high temperature are generally caused. Or because the lamination of iron cores (silicon steel sheets) in the transformer is poor, noise with relatively harsh abnormal frequency is generated due to the poor lamination, the problem that the noise can not be reduced or eliminated because the straight plate on the outer side of the traditional transformer can only dissipate heat is solved, and the problem that the three-phase voltage transformer can absorb the noise in the transformer shell while dissipating heat is needed.

Disclosure of Invention

The utility model aims to provide a three-phase voltage transformer, which is characterized in that a plurality of inverted radiating and sound-absorbing blocks are arranged at the outer side end of a transformer shell at intervals, and as gaps between two adjacent radiating and sound-absorbing blocks are narrower outwards, a plurality of sound-absorbing holes are formed in the outer wall of the radiating and sound-absorbing block, and noise in the transformer shell is absorbed through the sound-absorbing holes in a silica gel heat-conducting block; the noise problem of the transformer when the operation has effectually been solved. The radiating plate at the outer side end of the shell of the traditional transformer can radiate heat, and meanwhile the purpose of absorbing and eliminating noise in the shell of the transformer can be achieved, so that the practicality is high.

The utility model is realized in the following way:

the three-phase voltage transformer comprises a bottom plate, and mounting holes are formed in four corners of the bottom plate.

The transformer is characterized in that a base is fixedly arranged on the bottom plate, a wiring board is arranged on one side of the base, a transformer shell is fixedly arranged above the base, a plurality of radiating sound absorbing blocks are uniformly and fixedly arranged on four sides of the transformer shell at intervals respectively, a wiring seat is fixedly arranged at the upper end of the transformer shell, and wiring posts are fixedly arranged on the wiring seat.

Further, the heat dissipation sound-absorbing block comprises fins fixedly connected with the transformer shell, the fins are in an inverted triangle cone shape, a layer of heat conducting layer is attached to the outer side ends of the fins, and a plurality of sound-absorbing holes are uniformly formed in the heat conducting layer at intervals. The heat conduction layer is made of heat conduction silica gel, and the fins are made of brass. One end of the narrow opening of the fin is fixedly connected with the transformer shell.

Compared with the prior art, the utility model has the beneficial effects that: through the plurality of inverted heat dissipation and sound absorption blocks arranged at the outer side end of the transformer shell at intervals, as the gaps between two adjacent heat dissipation and sound absorption blocks are more and more narrow outwards, and the plurality of sound absorption holes are formed in the outer wall of the heat dissipation and sound absorption blocks, the noise in the transformer shell is absorbed through the sound absorption holes in the silica gel heat conduction block; the noise problem of the transformer when the operation has effectually been solved. The radiating plate at the outer side end of the shell of the traditional transformer can radiate heat, and meanwhile the purpose of absorbing and eliminating noise in the shell of the transformer can be achieved, so that the practicality is high.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some examples of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic view of the structure of the device of the present utility model;

FIG. 2 is a schematic view of a heat dissipating sound absorbing block of the present utility model;

the transformer comprises a base plate 1, mounting holes 11, a base 2, a wiring board 21, a transformer shell 3, a heat dissipation sound absorption block 31, a sound absorption hole 310, a heat conduction layer 311, a wiring seat 4 and a wiring post 5.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, based on the embodiments of the utility model, which are apparent to those of ordinary skill in the art without inventive faculty, are intended to be within the scope of the utility model.

Referring to fig. 1-2, a three-phase voltage transformer includes a base plate 1, and mounting holes 11 are formed at four corners of the base plate 1.

The base plate 1 is fixedly provided with a base 2, one side of the base 2 is provided with a wiring board 21, a transformer shell 3 is fixedly arranged above the base 2, a plurality of heat dissipation sound absorption blocks 31 are uniformly and fixedly arranged on four sides of the transformer shell 3 at intervals respectively, a wiring seat 4 is fixedly arranged at the upper end of the transformer shell 3, and wiring posts 5 are fixedly arranged on the wiring seat 4.

The heat dissipation sound absorption block 31 comprises fins fixedly connected with the transformer shell 3, the fins are in an inverted triangle cone shape, a layer of heat conduction layer 311 is attached to the outer side end of each fin, and a plurality of sound absorption holes 310 are uniformly formed in the heat conduction layer 311 at intervals. The heat conduction layer 31 is made of heat conduction silica gel, and the fins are made of brass. One end of the narrow opening of the fin is fixedly connected with the transformer shell.

The above description is only of the preferred embodiments of the present utility model and is not intended to limit the present utility model, and various modifications and variations may be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. A three-phase voltage transformer, characterized in that: including bottom plate (1) fixed base (2) that is equipped with on bottom plate (1), be equipped with wiring board (21) on one side of base (2) the fixed transformer casing (3) that is equipped with in top of base (2) the equal interval in four sides of transformer casing (3) is evenly fixed respectively and is equipped with polylith heat dissipation sound absorption piece (31) the upper end of transformer casing (3) is fixed and is equipped with wiring seat (4) fixed on wiring seat (4) are equipped with terminal (5).

2. The three-phase voltage transformer according to claim 1, wherein the heat dissipation sound absorption block (31) comprises fins fixedly connected with the transformer shell (3), the fins are in an inverted triangle cone shape, a layer of heat conduction layer (311) is attached to the outer side end of each fin, and a plurality of sound absorption holes (310) are uniformly formed in the heat conduction layer (311) at intervals.

3. The three-phase voltage transformer according to claim 2, wherein the heat conducting layer (311) is made of a heat conducting silica gel material, and the fins are made of brass material.

4. A three-phase voltage transformer according to claim 2, characterized in that one end of the narrow mouth of the fin is fixedly connected with the transformer housing (3).

5. A three-phase voltage transformer according to claim 1, characterized in that mounting holes (11) are provided in the four corners of the base plate (1).