CN221200891U

CN221200891U - Leak protection formula oil-immersed power transformer

Info

Publication number: CN221200891U
Application number: CN202322929399.9U
Authority: CN
Inventors: 李春萍; 杨慎识; 李新敬
Original assignee: Shenzhen Baiheng Electric Co ltd
Current assignee: Shenzhen Baiheng Electric Co ltd
Priority date: 2023-10-31
Filing date: 2023-10-31
Publication date: 2024-06-21
Anticipated expiration: 2033-10-31

Abstract

The utility model discloses a leakage-proof oil-immersed power transformer, which relates to the technical field of power transformers and comprises a shell, a protective sleeve, a core group and oil, wherein the protective sleeve is arranged on the inner wall of the shell in a fitting manner, the core group is arranged on the inner wall of the shell, the oil is infused into a gap between the shell and the core group, a fixed seat is fixedly connected to the side wall of the shell, radiating fins are arranged in the fixed seat in a sliding manner, a heat conducting plate is fixedly connected to the inner wall of the protective sleeve, and a heat conducting copper pipe is fixedly connected to the side wall of the heat conducting plate. The heat-radiating fin provided by the utility model can push the spiral heat-conducting copper pipe to deform after being subjected to external pressure, so that the heat radiation is ensured, and the heat-radiating fin is prevented from being deformed to damage the shell due to excessive pressure.

Description

Leak protection formula oil-immersed power transformer

Technical Field

The utility model relates to the technical field of power transformers, in particular to a leakage-proof oil-immersed power transformer.

Background

An oil-immersed power transformer is a common type of power transformer, and uses oil as an insulating and cooling medium, generally uses mineral oil or silicone oil, and is widely applied to power systems, industrial fields, buildings and other scenes, and is mainly used for converting voltage, adjusting voltage level and transmitting electric energy, and converting high-voltage electric energy into low-voltage electric energy suitable for transmission and use so as to meet the requirements of different electrical equipment and users.

In the prior art, in order to guarantee the radiating effect of an oil-immersed power transformer in the use process of the power transformer, a plurality of radiating fins are arranged on the outer side of the transformer, the radiating fins are lack of buffering protection on the outer side and are easy to deform under the influence of external force, if the pressure is too large, the radiating fins are extruded and damaged to the transformer, and oil in the transformer is possibly leaked to influence subsequent use.

Disclosure of utility model

The present utility model has been made in view of the above-described problems with the conventional power transformers.

Therefore, the utility model aims to provide a leakage-proof oil-immersed power transformer, which solves the problems that the outside of a radiating fin lacks buffering protection and is easy to deform under the influence of external force, if the pressure is too high, the radiating fin causes extrusion damage to the transformer, oil in the transformer can leak, and the subsequent use is affected.

In order to achieve the above object, the present utility model provides the following technical solutions:

The utility model provides an oil-immersed power transformer of leak protection formula, includes casing, lag, core group and fluid, the lag laminating sets up the inner wall at the casing, the core group sets up the inner wall at the casing, fluid is infused to the clearance department of casing and core group, fixedly connected with fixing base on the lateral wall of casing, the inside slip of fixing base is equipped with radiating fin, the inner wall fixedly connected with heat conduction plate of lag, fixedly connected with heat conduction copper pipe on the lateral wall of heat conduction plate, a plurality of recesses have been seted up to radiating fin's inside, radiating fin is located the inside fixedly connected with heat conduction pole of recess, the heat conduction copper pipe parcel sets up on the pole wall of heat conduction pole.

Preferably, the bottom fixedly connected with supporting seat of casing, the bottom inner wall threaded connection of supporting seat has the mounting bolt.

Preferably, the pipe wall of the heat conduction copper pipe extends to the inside of the groove, and the copper pipe of the heat conduction copper pipe in the groove is spirally arranged.

Preferably, the guide groove is formed in the inner wall of the fixing seat, a guide block is fixedly connected to the side wall of the radiating fin, and the guide block is slidably arranged in the guide groove.

Preferably, the side wall of the radiating fin is fixedly connected with a fixing plate, a sliding groove is formed in the fixing plate, a sliding block is arranged on the inner wall of the sliding groove in a sliding mode, and an elastic plate is fixedly connected to the side wall of the sliding block.

Preferably, the side wall of the shell is fixedly connected with a cushion block, the side wall of the elastic plate is tightly pressed on the side wall of the cushion block, and a plurality of heat dissipation through holes are formed in the inner wall of the heat dissipation fin.

In the technical scheme, the utility model has the technical effects and advantages that:

1. According to the utility model, the heat radiating fins can push the spiral heat conducting copper pipe to deform after being subjected to external pressure, so that heat radiation is ensured, and meanwhile, the heat radiating fins are prevented from being deformed by excessive pressure to damage the shell.

2. According to the utility model, the elastic plate is pushed to bend and deform after the radiating fins are pressed, so that the sliding block slides along the sliding groove in the fixed plate, the buffering effect on the radiating fins can be improved, and the influence of external pressure on the shell can be reduced through the cushion block.

Drawings

In order to more clearly illustrate the embodiments of the present utility model or the technical solutions in the prior art, the drawings required for the embodiments will be briefly described below, and it is apparent that the drawings in the following description are only some embodiments described in the present utility model, and other drawings may be obtained according to these drawings for a person having ordinary skill in the art.

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

FIG. 2 is an enlarged schematic view of portion A of FIG. 1 in accordance with the present utility model;

Fig. 3 is a perspective view showing the structure of the guide block of fig. 2 according to the present utility model.

Reference numerals illustrate:

1. A housing; 2. a protective sleeve; 3. a core group; 4. oil liquid; 5. a support base; 6. installing a bolt; 7. a fixing seat; 8. a heat radiation fin; 9. a heat conductive plate; 10. a heat conducting copper pipe; 11. a heat conduction rod; 12. a guide block; 13. a fixing plate; 14. a slide block; 15. an elastic plate; 16. a cushion block; 17. and a heat dissipation through hole.

Detailed Description

In order to make the technical scheme of the present utility model better understood by those skilled in the art, the present utility model will be further described in detail with reference to the accompanying drawings.

The embodiment of the utility model discloses a leakage-proof oil-immersed power transformer.

The utility model provides a leakage-proof oil immersed power transformer shown in fig. 1-3, which comprises a shell 1, a protective sleeve 2, a core group 3 and oil 4, wherein the protective sleeve 2 is attached to the inner wall of the shell 1, the core group 3 is arranged on the inner wall of the shell 1, the oil 4 is infused into a gap between the shell 1 and the core group 3, a fixed seat 7 is fixedly connected to the side wall of the shell 1, a radiating fin 8 is arranged in the fixed seat 7 in a sliding manner, a heat conducting plate 9 is fixedly connected to the inner wall of the protective sleeve 2, a heat conducting copper pipe 10 is fixedly connected to the side wall of the heat conducting plate 9, a plurality of grooves are formed in the radiating fin 8, a heat conducting rod 11 is fixedly connected to the inner part of the grooves, and the heat conducting copper pipe 10 is wrapped on the rod wall of the heat conducting rod 11.

The bottom fixedly connected with supporting seat 5 of casing 1, the bottom inner wall threaded connection of supporting seat 5 has mounting bolt 6, and the pipe wall of heat conduction copper pipe 10 extends to the inside of recess, and the copper pipe that heat conduction copper pipe 10 is located the inside copper pipe of recess sets up to the heliciform, and the guide way has been seted up to the inner wall of fixing base 7, fixedly connected with guide block 12 on the lateral wall of fin 8, and guide block 12 slides and sets up the inside at the guide way.

During the use, can improve the protection to casing 1 through lag 2, the normal use of transformer is guaranteed to core group 3, supporting seat 5 and mounting bolt 6 can improve the stability of transformer installation, can pass through heat conduction copper pipe 10 and heat conduction pole transmission to the inside of radiating fin 8 with inside heat through heat-conducting plate 9, guarantee the radiating effect, can promote spiral heat conduction copper pipe 10 deformation after radiating fin 8 receives external pressure, when guaranteeing to dispel the heat, prevent radiating fin 8 to receive too big pressure to take place deformation and cause the damage to casing 1, guide block 12 slides along the inside of guide way, stability when can guaranteeing radiating fin 8 and remove.

In order to improve the buffering effect on the radiating fins 8, as shown in fig. 1-3, a fixed plate 13 is fixedly connected to the side wall of the radiating fins 8, a sliding groove is formed in the fixed plate 13, a sliding block 14 is slidably arranged on the inner wall of the sliding groove, an elastic plate 15 is fixedly connected to the side wall of the sliding block 14, a cushion block 16 is fixedly connected to the side wall of the shell 1, the side wall of the elastic plate 15 is tightly pressed on the side wall of the cushion block 16, and a plurality of radiating through holes 17 are formed in the inner wall of the radiating fins 8.

After the radiating fins 8 are pressed, the elastic plate 15 is pushed to bend and deform, so that the sliding block 14 slides along the sliding groove in the fixed plate 13, the buffering effect on the radiating fins 8 can be improved, and the influence of external pressure on the shell 1 can be reduced through the cushion block 16.

While certain exemplary embodiments of the present utility model have been described above by way of illustration only, it will be apparent to those of ordinary skill in the art that modifications may be made to the described embodiments in various different ways without departing from the spirit and scope of the utility model. Accordingly, the drawings and description are to be regarded as illustrative in nature and not as restrictive of the scope of the utility model, which is defined by the appended claims.

Claims

1. The utility model provides an oil-immersed power transformer of leak protection type, includes casing (1), lag (2), core group (3) and fluid (4), its characterized in that, lag (2) laminating sets up the inner wall at casing (1), core group (3) set up the inner wall at casing (1), fluid (4) infuse to the clearance department of casing (1) and core group (3), fixedly connected with fixing base (7) on the lateral wall of casing (1), the inside slip of fixing base (7) is equipped with radiating fin (8), the inner wall fixedly connected with heat conduction board (9) of lag (2), fixedly connected with heat conduction copper pipe (10) on the lateral wall of heat conduction board (9), a plurality of recesses have been seted up to the inside of radiating fin (8), radiating fin (8) are located inside fixedly connected with heat conduction pole (11) of recess, heat conduction copper pipe (10) parcel sets up on the pole wall of heat conduction pole (11).

2. The leakage-proof oil-immersed power transformer according to claim 1, wherein a supporting seat (5) is fixedly connected to the bottom of the shell (1), and a mounting bolt (6) is connected to the inner wall of the bottom end of the supporting seat (5) in a threaded manner.

3. The leakage-proof oil immersed power transformer according to claim 1, wherein the tube wall of the heat conducting copper tube (10) extends to the inside of the groove, and the copper tube of the heat conducting copper tube (10) located in the inside of the groove is arranged in a spiral shape.

4. The leakage-proof oil immersed power transformer according to claim 1, wherein the inner wall of the fixing seat (7) is provided with a guide groove, a guide block (12) is fixedly connected to the side wall of the radiating fin (8), and the guide block (12) is slidably arranged in the guide groove.

5. The leakage-proof oil-immersed power transformer according to claim 1, wherein a fixed plate (13) is fixedly connected to the side wall of the radiating fin (8), a sliding groove is formed in the fixed plate (13), a sliding block (14) is slidably arranged on the inner wall of the sliding groove, and an elastic plate (15) is fixedly connected to the side wall of the sliding block (14).

6. The leakage-proof oil immersed power transformer according to claim 5, wherein a cushion block (16) is fixedly connected to the side wall of the shell (1), the side wall of the elastic plate (15) is tightly pressed and arranged on the side wall of the cushion block (16), and a plurality of heat dissipation through holes (17) are formed in the inner wall of the heat dissipation fin (8).