CN219158572U - Waterproof construction and power transformer - Google Patents

Abstract

The utility model relates to the technical field related to power transformers, in particular to a waterproof structure and a power transformer, wherein the waterproof structure comprises a door frame, a sealing rubber strip, a water absorption expansion strip, a water diversion strip and a door body, the door frame is fixedly connected with a transformer box body, a sealing groove is formed in the side wall of the door frame, the sealing rubber strip is embedded and installed in the sealing groove, a central groove and an opening groove are formed in the sealing rubber strip, and the water absorption expansion strip is embedded in the central groove; through setting up the waterproof construction that constitutes by door frame, joint strip, water expansion strip, drainage strip and the combination of door body to with water expansion strip embedding in joint strip's centre tank, and offer the open slot at centre tank edge, thereby let the water when permeating the position department of open slot, can appear deformation through the expansion of water expansion strip, thereby let joint strip appear the deformation, thereby effectively improve the leakproofness between door frame and the door body, thereby improve the overall security of transformer operation.

Description

Waterproof construction and power transformer

Technical Field

The utility model relates to the technical field related to power transformers, in particular to a waterproof structure and a power transformer.

Background

A power transformer is a stationary electric device, which is a device for changing an ac voltage (current) of a certain value into another voltage (current) of the same frequency or of different values;

the transformers common in the current stage are all box-type transformers (commonly referred to as 'box transformer'), the traditional transformers are intensively designed in a box-type shell, and the transformer has the advantages of small volume, light weight, low noise, low loss and high reliability, and is widely applied to residential communities, commercial centers, light stations, airports, factories, mines, enterprises, hospitals, schools and other places;

however, the sealing performance of the junction between the access door and the box body of the traditional box-type transformer is poor, and in rainy days, water seepage occurs easily at the position of the junction, so that the humidity in the box body is too high, and a certain potential safety hazard is left.

Disclosure of Invention

The present utility model is directed to a waterproof structure and a power transformer, which solve the above-mentioned problems.

In order to achieve the above purpose, the present utility model provides the following technical solutions: a waterproof structure, the waterproof structure comprising:

the door frame is fixedly connected with the transformer box body, and a sealing groove is formed in the side wall of the door frame;

the sealing rubber strip is embedded and installed in the sealing groove, and a central groove and an open groove are formed in the sealing rubber strip;

the water-absorbing expansion strips are embedded in the central groove;

the water diversion strip is embedded in the open slot;

the door body is hinged to the door frame, and the side edge of the door body is propped against the sealing rubber strip.

Preferably, the sealing groove is formed around the door frame for a circle, the edge of the sealing rubber strip protrudes out of the sealing groove, and when the door body is closed, the sealing rubber strip is in a pressed state.

Preferably, the water-absorbent expansion strip is a water-absorbent resin strip.

Preferably, the water diversion strip is a fiber cotton sliver, and the water diversion strip is positioned at the position close to the outer side of the inner contour of the sealing rubber strip.

Preferably, the inner side wall of the door frame is arranged in a step mode, and when the door body is closed, the inner side wall of the door body abuts against the step of the door frame.

Preferably, the inner side edge of the door body is chamfered.

A power transformer having the waterproof structure described above.

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

1. the waterproof structure formed by combining the door frame, the sealing rubber strip, the water absorbing expansion strip, the water guiding strip and the door body is arranged, the water absorbing expansion strip is embedded into the central groove of the sealing rubber strip, and the edge of the central groove is provided with the open groove, so that when water body permeates to the position of the open groove, the water absorbing expansion strip can absorb water to expand, the sealing rubber strip can deform, the sealing property between the door frame and the door body is effectively improved, and the overall safety of the operation of the transformer is improved;

2. and through embedding the drainage strip that sets up the fibre cotton material in the open slot to guide the position department of water expansion strip through the drainage strip with the water, thereby when guaranteeing that the expansion strip absorbs water steadily, can guarantee that the expansion strip that absorbs water forms even extrusion force to joint strip from the inboard.

Drawings

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

FIG. 2 is an enlarged schematic view of the structure A in FIG. 1;

FIG. 3 is an enlarged schematic view of the sealing rubber strip structure;

fig. 4 is an enlarged schematic view of the structure at B in fig. 3.

In the figure: the sealing rubber strip 1, the water absorption expansion strip 2, the water diversion strip 3, the door frame 4, the door body 5, the central groove 6 and the open groove 7.

Detailed Description

In order to make the objects, technical solutions, and advantages of the present utility model more apparent, the embodiments of the present utility model will be further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are some, but not all, embodiments of the present utility model, are intended to be illustrative only and not limiting of the embodiments of the present utility model, and that all other embodiments obtained by persons of ordinary skill in the art without making any inventive effort are within the scope of the present utility model.

In the description of the present utility model, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," "horizontal," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "a," an, "" the first, "" the second, "" the third, "" the fourth, "" the fifth, "and the sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

For purposes of brevity and description, the principles of the embodiments are described primarily by reference to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. It will be apparent, however, to one of ordinary skill in the art that the embodiments may be practiced without limitation to these specific details. In some instances, well-known methods and structures have not been described in detail so as not to unnecessarily obscure the embodiments. In addition, all embodiments may be used in combination with each other.

Referring to fig. 1-4, the present utility model provides three preferred embodiments:

example 1

The utility model provides a waterproof construction, waterproof construction includes door frame 4, joint strip 1, expansion strip 2 absorbs water, diversion strip 3 and door body 5, door frame 4 and transformer box fixed connection, and offered the seal groove on the lateral wall of door frame 4, joint strip 1 embedding is installed in the seal groove, and joint strip 1 is last to have offered centre tank 6 and open slot 7, expansion strip 2 absorbs water imbeds in centre tank 6, diversion strip 3 imbeds in open slot 7, door body 5 is articulated to be installed on door frame 4, and the side of door body 5 offsets with joint strip 1 and set up.

The sealing groove is formed by a circle around the door frame 4, the edge of the sealing rubber strip 1 protrudes outside the sealing groove, when the door body 5 is closed, the sealing rubber strip 1 is in a pressed state, the water absorbing expansion strip 2 is a water absorbing resin strip, the waterproof structure formed by the combination of the door frame 4, the sealing rubber strip 1, the water absorbing expansion strip 2, the water diversion strip 3 and the door body 5 is arranged, the water absorbing expansion strip 2 is embedded into the central groove 6 of the sealing rubber strip 1, and the opening groove 7 is formed in the edge of the central groove 6, so that when water permeates to the position of the opening groove 7, the water can be expanded through the water absorbing expansion of the water absorbing expansion strip 2, the deformation effect of the sealing rubber strip 1 is realized, the sealing property between the door frame 4 and the door body 5 is effectively improved, and the whole safety of the operation of a transformer is improved.

Example two

On the basis of the first embodiment, the water diversion strip 3 is a fiber cotton sliver, the water diversion strip 3 is located at the position close to the outer side of the inner contour of the sealing rubber strip 1, and the water diversion strip 3 made of fiber cotton is embedded into the open slot 7, so that water is led to the position of the water absorption expansion strip 2 through the water diversion strip 3, stable water absorption of the water absorption expansion strip 2 is ensured, and meanwhile, the water absorption expansion strip 2 can be ensured to form uniform extrusion force on the sealing rubber strip 1 from the inner side.

Example III

On the basis of the second embodiment, the inner side wall of the door frame 4 is arranged in a step shape, and when the door body 5 is closed, the inner side wall of the door body 5 abuts against the step part of the door frame 4.

The inner side edge of the door body 5 is chamfered.

Example IV

On the basis of the third embodiment, a power transformer is provided, which has the waterproof structure.

While the foregoing has been described in terms of illustrative embodiments thereof, so that those skilled in the art may appreciate the present application, it is not intended to be limited to the precise embodiments so that others skilled in the art may readily utilize the present application to its various modifications and variations which are within the spirit and scope of the present application as defined and determined by the appended claims.

Claims (7)

1. A waterproof construction, characterized in that: the waterproof structure includes:

the door frame (4), the said door frame (4) is fixedly connected with the tank body of the transformer, and offer the seal groove on the sidewall of the door frame (4);

the sealing rubber strip (1), the sealing rubber strip (1) is embedded and installed in the sealing groove, and the sealing rubber strip (1) is provided with a central groove (6) and an open groove (7);

a water-absorbing expansion strip (2), wherein the water-absorbing expansion strip (2) is embedded in the central groove (6);

a water diversion strip (3), wherein the water diversion strip (3) is embedded in the open slot (7);

the door body (5), door body (5) are articulated install on door frame (4), and the side of door body (5) offsets with joint strip (1) and sets up.

2. A waterproof structure according to claim 1, characterized in that: the sealing groove surrounds the door frame (4) and is provided with a circle, the edge of the sealing rubber strip (1) protrudes out of the sealing groove, and when the door body (5) is closed, the sealing rubber strip (1) is in a pressed state.

3. A waterproof structure according to claim 1, characterized in that: the water-absorbing expansion strips (2) are water-absorbing resin strips.

4. A waterproof structure according to claim 1, characterized in that: the water diversion strip (3) is a fiber cotton sliver, and the water diversion strip (3) is positioned at the position close to the outer side of the inner contour of the sealing rubber strip (1).

5. A waterproof structure according to claim 1, characterized in that: the inner side wall of the door frame (4) is arranged in a step mode, and when the door body (5) is closed, the inner side wall of the door body (5) abuts against the step of the door frame (4).

6. A waterproof structure according to claim 1, characterized in that: the inner side edge of the door body (5) is subjected to chamfering treatment.

7. A power transformer, characterized by: the power transformer has the waterproof structure of any one of the above claims 1 to 6.

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